Systems and methods for multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing (OFDM) are provided. In one embodiment, a remote unit for communicating with a host unit using OFDM is provided, the host unit communicatively coupled to a plurality of
Systems and methods for multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing (OFDM) are provided. In one embodiment, a remote unit for communicating with a host unit using OFDM is provided, the host unit communicatively coupled to a plurality of remote units in a multipoint-to-point configuration. The remote unit comprises a modulator for modulating up to a plurality of tones with upstream information using orthogonal frequency division multiplexing, wherein the modulator is configured to adjust a carrier frequency and timing of the plurality of tones such that spectrally overlapping tones transmitted from the remote unit and at least one other remote unit of the plurality of remote units are orthogonal and combine to form an OFDM waveform when received at the host; and wherein a first tone of the plurality of tones carries both control data and payload data.
대표청구항▼
1. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising: receiving communication at a first remote unit of a plurality of remote units from a host unit, the plurality of remote units communicatively coupled to the host unit in a
1. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising: receiving communication at a first remote unit of a plurality of remote units from a host unit, the plurality of remote units communicatively coupled to the host unit in a multi-point-to-point configuration;transmitting up to a plurality of tones from the first remote unit, the up to a plurality of tones modulated with upstream information using orthogonal frequency division multiplexing;adjusting a carrier frequency and a carrier timing of the up to a plurality of tones such that when waveforms are transmitted from a first remote unit and at least one other remote unit of the plurality of remote units, the waveforms combine to a unified orthogonal frequency division multiplexing waveform at the host unit; and transmitting both control data and payload data on at least one channel from the first remote unit. 2. The method of claim 1, wherein the control data comprises control symbols and the payload data comprises payload symbols. 3. The method of claim 1, further comprising sharing upstream bandwidth capacity among the plurality of remote units using a time division multiple access scheme in which control data is transmitted on the first tone of the plurality of tones during a first time period and payload data is transmitted on the first tone of the plurality of tones during a second time period. 4. The method of claim 1, further comprising: adjusting an amplitude of the up to a plurality of tones such that when waveforms are transmitted from the first remote unit and at least one other remote unit of the plurality of remote units, the waveforms combine to a unified orthogonal frequency division multiplexing waveform at the host unit. 5. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising: receiving an orthogonal frequency division multiplexing waveform at a multipoint-to-point host unit, the orthogonal frequency division multiplexing waveform comprising a plurality of tones transmitted by a plurality of remote units;communicating between a first remote unit of the plurality of remote units and the multipoint-to-point host unit, the plurality of remote units communicatively coupled to the multipoint-to-point host unit in a multipoint-to-point configuration;adjusting a carrier frequency and a carrier timing of the up to a plurality of tones such that when waveforms are transmitted from a first remote unit and at least one other remote unit of the plurality of remote units, the waveforms combine to a unified orthogonal frequency division multiplexing waveform at the host unit; andreceiving on a first tone of the plurality of tones both control data and payload data. 6. The method of claim 5, wherein the control data comprises control symbols and the payload data comprises payload symbols. 7. The method of claim 5, wherein receiving on a first tone of the plurality of tones both control data and payload data further comprises: receiving control data transmitted on the first tone of the plurality of tones during a first time period; andreceiving payload data transmitted on the first tone of the plurality of tones during a second time period. 8. The method of claim 5, further comprising: adjusting a carrier amplitude of the up to a plurality of tones such that when waveforms are transmitted from a first remote unit and at least one other remote unit of the plurality of remote units, the waveforms combine to a unified orthogonal frequency division multiplexing waveform at the host unit. 9. A method for a remote communication device, the method comprising: communicating with a host unit by modulating up to a plurality of orthogonal frequency division multiplexing (OFDM) tones;adjusting a frequency and a timing of the up to a plurality of tones to combine with spectrally overlapping tones from at least one other remote communication device to form a unified orthogonal frequency division multiplexing waveform at the host unit;sharing upstream bandwidth capacity provided by the unified orthogonal frequency division multiplexing waveform with the at least one other remote communication device;transmitting both control data and payload data on a first tone of the unified orthogonal frequency division multiplexing waveform. 10. The method of claim 9, wherein the control data comprises control symbols and the payload data comprises payload symbols. 11. The method of claim 9, further comprising sharing upstream bandwidth capacity among a plurality of remote units using a time division multiple access scheme in which control data is transmitted on the first tone of the unified orthogonal frequency division multiplexing waveform during a first time period and payload data is transmitted on the first tone of the unified orthogonal frequency division multiplexing waveform during a second time period. 12. The method of claim 9, further comprising: adjusting a carrier amplitude of the up to a plurality of tones. 13. A remote unit for communicating with a host unit using orthogonal frequency division multiplexing (OFDM), the host unit communicatively coupled to a plurality of remote units in a multipoint-to-point configuration, the remote unit comprising: a modulator for modulating up to a plurality of tones with upstream information using orthogonal frequency division multiplexing, wherein the modulator is configured to adjust a carrier frequency and timing of the plurality of tones such that spectrally overlapping tones transmitted from the remote unit and at least one other remote unit of the plurality of remote units are orthogonal and combine to form an OFDM waveform when received at the host; andwherein a first tone of the plurality of tones carries both control data and payload data. 14. The remote unit of claim 13, wherein the control data comprises control symbols and the payload data comprises payload symbols. 15. The remote unit of claim 13, wherein upstream bandwidth capacity for accessing the host unit is shared among the plurality of remote units using a time division multiple access scheme in which the control data is transmitted on the first tone of the plurality of tones during a first time period and payload data is transmitted on the first tone of the plurality of tones during a second time period. 16. The remote unit of claim 13, wherein upstream transmissions are transmitted concurrently from at least two of the plurality of remote units.
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Omoto Noriaki (Osaka JPX), A.F.C. system for broad-band FM receiver.
Krisbergh Harold M. ; Wachob David E. ; Augenbraun Joseph E. ; Lee Jae Hea Edward, Access system and method for providing interactive access to an information source through a television distribution system.
Jeffrey Brede ; Michael J. Fort ; Jeff Solum ; Michael J. Geile, Acquisition and tracking in communication system with multicarrier telephony transport.
Dapper Mark J. (Cincinnati OH) Geile Michael J. (Loveland OH) Carlin Barry W. (Greenhills OH), Adaptive mode control system for AM compatible digital broadcast.
Bliven David C. (San Jose CA) Vranicar Anthony (Santa Clara CA) Vail Philip B. (San Leandro CA) Shimirak Gerald L. (Danville CA) Mullaney Julian S. (Raleigh NC), Alarm and test system for a digital added main line.
Rakib Selim Shlomo ; Azenkot Yehuda, Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops.
Klayman Jeffrey T. (Canton MA) Perreault John A. (Hopkinton MA) Unger Katherine (Wrentham MA) Schroeder Stephen (Stoughton MA), Apparatus and method for adaptive forward error correction in data communications.
Azaren Daniel J. (Encino CA) Wiher Christian R. (Hermosa Beach CA), Apparatus and method for high speed flexible multiplexing for fiber optic data transmissions.
Majeti Venkata C. (Naperville IL) Midani Mowaffak T. (Naperville IL) Watson Richard J. (Catawissa MO) Zabriskie Kenneth A. (Indianapolis IN), Apparatus and method for integrating downstream data transfer over a cable television channel with upstream data carrier.
Grimwood Michael ; Knittel Jim ; Richardson Paul ; Rakib Selim Shlomo ; Lind Paul Alan ; Artman Doug, Apparatus and method for synchronizing an SCDMA upstream or any other type upstream to an MCNS downstream or any other type downstream with a different clock rate than the upstream.
Young Alan D., Apparatus and method for using forward error correction setting to enable simultaneous use of multiple modulation systems on terrestrial distribution networks.
Wishart Alexander W. (Stevenage GB3) Lake Francis J. (Stevenage GB3) Marston Paul C. (Stevenage GB3), Apparatus for and method of digital signal processing.
Dulaney Ernest N. (Clearwater FL) Elmhurst Richard F. (Largo FL), Apparatus for continuous assessment of data transmission accuracy in a communication system.
Bellanger ; Maurice Georges ; Bonnerot ; Georges ; Coudreuse ; Michel, Arrangement for processing auxiliary signals in a frequency multiplex transmission system.
Ressler Elliott L. (Elkins Park PA) Levy Yoram (Philadelphia PA) Bancroft Douglas A. (Langhorne PA), Automatic repeater station for signal transmissions.
Isfeld Mark S. ; Mallory Tracy D. ; Mitchell Bruce W. ; Seaman Michael J. ; Arunkumar Nagaraj, Bridge/router architecture for high performance scalable networking.
Thompson Leo J. (Lilburn GA) Dubberly Gregory T. (Atlanta GA) Ritchie ; Jr. John A. (Duluth GA) Fellows David M. (Beverly MA), Broadband communications system.
Rudrapatna Ashok N. (Basking Ridge NJ) Jaisingh Gopal K. (Montville NJ) Miller ; II Robert R. (Morris Township ; Morris County NJ) Russell Jesse E. (Piscataway NJ) Schroeder Robert E. (Morris Townshi, Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynami.
Henderson Brian G. (Derwood MD) Naaman Antoine R. (Washington DC) Olimpiew Alexndre (Reston VA) Bourgon Jean-Perre (Herndon VA), Burst tone range processing system and method.
McNamara Robert P. (San Jose CA) Ennis Gregory B. (San Jose CA) Feiertag Richard J. (Sunnyvale CA) Bauer Robert K. (Fremont CA), CATV Communication system.
Elder Joseph M. (Boulder CO) Bise Donald L. (Parker CO) Bolinger Terry D. (Aurora CO) Ruether Peter (Longmont CO), CATV telephony system using subsplit band for both directions of transmission.
Dufresne Michel (Boucherville CAX) Champagne Jean-Paul (Brossard CAX) Dufresne Daniel (Montreal CAX) Scott Pierre (Montreal CAX) Courtney John (Montreal CAX), Cable network data transmission system.
Beyers ; II Robert J. (Snellville GA) Bramhall Charles R. (Norcross GA) Durden Gregory S. (Jonesboro GA) Edwards Robert J. (Lawrenceville GA) Haman ; Jr. Ray T. (Buluth GA) Hoder Douglas J. (Lakewood, Cable television radio frequency subscriber data transmission apparatus and RF return method.
Pidgeon ; Jr. Rezin E. (Atlanta GA) Zendt Frederick T. (Norcross GA) Thompson Leo J. (Lilburn GA), Cable television spread spectrum data transmission apparatus.
Pocock Terrence H. (Mount Brydges CAX) Coumans Peter J. M. (London CAX) McNorgan Richard M. (London CAX) Hart George M. (London CAX), Cable television system selectively distributing pre-recorded video and audio messages.
Cogswell Ned W. (Salisbury MD) Eskin Gerald J. (Iowa City IA) Wright ; Jr. W. Andrew (Bethlehem PA), Cable television with controlled signal substitution.
Hill Terrance J. ; Roberts Harold A. ; Anderson Brian D. ; Brede Jeffrey ; Wadman Mark S. ; Kirscht Robert J. ; Herrmann James J. ; Fort Michael J. ; Buska Steven P. ; Solum Jeff ; Enfield Debra Lea , Channel selection for a hybrid fiber coax network.
Bodin Roland (Spanga SEX) Kallin Harald (Sollentuna SEX) Lindroth Lars M. (Stockholm SEX) Ghisler Walter (Upplands Vsby SEX), Channel selection in a cellular communication system.
Harold A. Roberts ; Jeffrey Brede ; Mark S. Wadman ; Robert J. Kirscht ; James J. Herrmann ; Michael J. Fort, Communication system transmitting modulated orthogonal carries with service units that scan spectrum to identify assigned band.
Dapper Mark J. ; Geile Michael J. ; Hill Terrance J. ; Roberts Harold A. ; Anderson Brian D. ; Brede Jeffrey ; Wadman Mark S. ; Kirscht Robert J. ; Herrmann James J. ; Fort Michael J. ; Buska Steven , Communication system with multicarrier telephony transport.
Dapper Mark J. ; Geile Michael J. ; Roberts Harold A. ; Brede Jeffrey ; Wadman Mark S. ; Kirscht Robert J. ; Herrmann James J. ; Fort Michael J., Communication system with multicarrier transport distribution network between a head end terminal and remote units.
Grobicki Christopher (Andover MA) Mazza Cynthia (Lynn MA) O\Connell Edward (N. Andover MA) Ulm John (Pepperell MA) White Gerard (Tyngsborough MA), Communications highway network system.
Hewitt Michael T. H. (Ipswich GB2) Ballance John W. (Ipswich GB2) Scott Richard P. I. (Woodbridge GB2), Communications network having a single node and a plurality of outstations.
Johnson Dennis F. (Winnipeg CAX) Marcynuk Don (Winnipeg CAX) Holowick Erwin (Winnipeg CAX), Communications protocol for remote data generating stations.
Sundararajan Duraisamy (Department of Electrical and Computer Engineering ; Concordia University ; 1455 de Maisonneuve West ; Room H915 Montreal ; Quebec CAX) Ahmad M. Omair (Department of Electrical, Computational structures for the fast fourier transform analyzers.
Faulkner David W. (Ipswich GB2) Russ Dianne M. (Ipswich GB2) Fordham David I. (Saxmundham GB2) Hutcheon Alistair (Ipswich GB2) Henning Ian D. (Ipswich GB2), Control of optical systems.
Baker ; Jr. William T. (Palo Alto CA) Buffum Charles M. (San Jose CA) Jolissaint Charles H. (Sunnyvale CA) Kerlin Gregg W. (Los Gatos CA), Coordinated transfer of voice and information through a network of digital switches.
Majeti Venkata C. (Naperville IL) Midani Mowaffak T. (Naperville IL) Watson Richard J. (Catawissa MO) Zabriskie Kenneth A. (Indianapolis IN), Customer premises equipment receives high-speed downstream data over a cable television system and transmits lower speed.
Adams Samuel T. (Windham NH) Kaycee Mahendra J. (Londonderry NH) Heffler Michael J. (Plainsboro NJ), Data representation protocol for communications between different networks.
Chennakeshu Sandeep (Clifton Park NY) Narasimhan Anand (Troy NY) Anderson John B. (Latham NY), Decision feedback equalization for digital cellular radio.
Castelain M. Damien (Rennes FRX) Helard M. Jean-Francois (Rennes FRX) Le Floch M. Bernard (Rennes FRX) Rault M. Jean-Christophe (Rennes FRX), Device for the coherent demodulation of time-frequency interlaced digital data, with estimation of the frequency respons.
Castelain Damien (Rennes FRX) Richard Jol (Rennes FRX) Halbert-Lasselle Roselyne (Rennes FRX) Pommier Daniel (Breal Sous Montfort FRX), Device for the reception of digital data time frequency interlacing, notably for radio broadcasting at high bit rate tow.
Halbert-Lassalle Roselyn,FRX ; Helard Jean Francois,FRX ; Le Floch Bernard,FRX, Device for the transmission of digital data with at least two levels of protection and corresponding reception device.
Halbert-Lassalle Roselyne (Rennes) Helard Jean-Francois (Rennes) Le Floch Bernard (Rennes FRX), Device for the transmission of digital data with at least two levels of protection and corresponding reception device.
Hopkins Gregory T. (Chelmsford MA) Dahod Ashraf M. (Reading MA) Demarines Victor A. (Chelmsford MA) Meisner Norman B. (Newton Centre MA) Willard David G. (Carlisle MA), Digital bus communications system.
Lehman Harvey R. (Batavia IL) Lidinsky William P. (Naperville IL) Mussman Harry E. (Glen Ellyn IL) Spicer David A. (Batavia IL) Vlack David (St. Charles IL), Digital communication network architecture for providing universal information services.
Chouly Antoine (Paris FRX) Brajal Amrico (Villeneuve Le Roi FRX), Digital signal transmission system based on partitioning of a coded modulation with concatenated codings.
Mattis ; Jr. William E. (Wilmington DE) Wolejsza ; Jr. Chester J. (Gaithersburg MD) Uzunoglu Vasil (Ellicott City MD), Digitally controlled transversal equalizer.
McNamara Robert P. (San Jose CA) Saldinger Alan (Cupertino CA) Cringle Robert J. (Mountain View CA) Chu Gigi C. (Santa Clara CA) Sangameswara Shanubhog G. (Cupertino CA) Vita Peterpaul (Saratoga CA) , Distributed intelligence network using time and frequency multiplexing.
Terry John B. (Carp CAX) Warwick Alastair A. (Ottawa CAX) Anderson Carl W. C. (Kanata CAX), Distribution network comprising coax and optical fiber paths for transmission of television and additional signals.
Metz Erik C. (Bowie MD) Hudson ; Jr. Henry G. (Annapolis MD) Darr ; Jr. John W. (Great Falls VA), Downloading operating system software through a broadcast channel.
Burke Michael E. (Rockaway Township ; Morris County NJ) Colodner Samuel (Succasunna NJ) Luu Huy T. (Lake Hiawatha NJ) Saneski Steven P. (Somerset NJ), Drop testing in fiber to the home systems.
Geile,Michael J.; Anderson,Brian D.; Brede,Jeffrey; Kirscht,Robert J.; Fort,Michael J.; Elpers,Mark D., Dynamic allocation of transmission bandwidth in a communication system.
Bantz David (Chappaqua NY) Bauchot Frederic (Saint-Jeannet FRX) Bello Eliane D. (Jardim Flamboyant Campinas NJ BRX) Kutten Shay (Rockaway NJ) Krawczyk Hugo (Riverdale NY), Dynamic user registration method in a mobile communications network.
Paik Woo H. (Encinitas CA) Grubb ; III David (Doylestown PA) Charlton David E. (Corning NY), Dynamically responsive CATV system with shared fiber optic link.
Heer Daniel N. ; Rance Robert J., Encrypting method and apparatus enabling multiple access for multiple services and multiple transmission modes over a broadband communication network.
Christensen Tore L. (Boulder CO) Haygood Gail L. (Boulder CO) Spencer Douglas A. (Boulder CO) Szymanski Steven J. (Boulder CO), Establishing and supporting data traffic in private branch exchanges.
Mark J. Dapper ; Michael J. Geile ; Terrance J. Hill ; Harold A. Roberts ; Brian D. Anderson ; Jeffrey Brede ; Mark S. Wadman ; Robert J. Kirscht ; James J. Herrmann ; Michael J. Fort ; Ste, Fast fourier transform apparatus and method.
Gusella Riccardo (Menlo Park CA) Ramanathan Srinivas (La Jolla CA), Flexible scheme for admission control of multimedia streams on integrated networks.
Mestdagh Denis Julien Gilles,BEX ; De Prycker Martin Louis Florence,BEX, Frequency division multiple access (FDMA) dedicated transmission system, transmitter and receiver used in such a transmi.
Bronder Joseph B. (East Berlin PA) Gossard William H. (Grasonville MD), Frequency division multiplex guardband communication system for sending information over the guardbands.
Bigham John A. ; Little Dave ; Mihm Edward C. ; Sistanizadeh Kamran ; Amin-Salehi Bahman ; Jain Alpna ; Lightfoot Regina ; Arthur Ulric E., Full service network having distributed architecture.
Ishikawa Tatsuya (Kanagawa-ken JPX) Seki Takashi (Kanagawa-ken JPX), Hierarchical quadrature frequency multiplex signal format and apparatus for transmission and reception thereof.
Ku Walter H. (La Jolla CA) Linderman Richard W. (Dayton OH) Chau Paul M. (Ithaca NY) Reusens Peter P. (Destel Bergin BEX), High performance signal processor.
Keasler William E. (Champaign IL) Bitzer Donald L. (Urbana IL) Tucker Paul T. (Urbana IL), High speed modem suitable for operating with a switched network.
Lee Craig A. (Tamarac FL) Fallin David B. (Sunrise FL) Sackman ; III Edward J. (Sunrise FL) Wray Donald L. (Lauderhill FL), High speed module interconnection bus.
Moura Eduardo J. ; Gronski Jan Maksymilian ; Packer Robert L. ; Luxenberg Robert A. ; Enns Frederick, Hybrid access system utilizing credit/done polling protocols.
Harold A. Roberts ; David S. Russell ; Calvin G. Nelson ; Jeffrey Brede ; Joseph F. Chiappetta ; Niranjan R. Samant, Hybrid fiber/coax video and telephony communication.
Kobayashi Hiroshi (Tokyo JPX) Hirose Tsuguhiro (Tokyo JPX) Haruyama Hideaki (Fujisawa JPX), Information transmission system with modems coupled to a common communication medium.
Pindar Andrew (Sunnyvale CA) Marcroft Duane (San Carlos CA) Nichols ; III Andrew J. (Palo Alto CA), Integrated modem which employs a host processor as its controller.
Schnee Rolf (Berlin DEX) Kraus Franz (Berlin DEX) Kiel Friedrich (Berlin DEX) Kliem Helmut (Berlin DEX) Krick Wolfgang (Berlin DEX) Landgraf Herbert (Darmstadt DEX), Interactive cable television system.
Yoshino Hitoshi (Yokosuka JPX) Fukawa Kazuhiko (Yokohama JPX) Suzuki Hiroshi (Yokosuka JPX), Interference signal cancelling method, receiver and communication system using the same.
Tobagi Fouad A. (Los Altos CA) Fratta Luigi (Segrate ITX) Borgonovo Flaminio (Cant ITX), Local area communication network utilizing a round robin access scheme with improved channel utilization.
Fuhrmann Amir Michael ; Rakib Selim Shlomo ; Azenkot Yehuda, Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant.
Ikeda Tamotsu,JPX ; Ikeda Yasunari,JPX ; Okada Takahiro,JPX, Means and method of improving multiplexed transmission and reception by coding and modulating divided digital signals.
Doshi Bharat Tarachand ; Dravida Subrahmanyam ; Kustka George John ; Magill Peter D. ; Siller Curtis A. ; Sriram Kotikalapudi, Method and apparatus enabling multiple access for multiple services and multiple transmission modes over a broadband communication network utilizing an adaptive digital access protocol.
Doshi Bharat Tarachand ; Dravida Subrahmanyam ; Kustka George John ; Magill Peter D. ; Siller Curtis A. ; Sriram Kotikalapudi, Method and apparatus enabling synchronous transfer mode, variable length and packet mode access for multiple services over a broadband communication network.
Dapper Mark J. (Cincinnati OH) Geile Michael J. (Loveland OH) Carlin Barry W. (Greenhills OH), Method and apparatus for AM compatible digital broadcasting.
McMullan ; Jr. Jay C. (Doraville GA) Naddor David J. (Doraville GA) Beyers ; II Robert J. (Snellville GA), Method and apparatus for RF data transfer in a CATV system.
Hershey John Erik ; Saulnier Gary Jude ; Hladik Stephen Michael ; Gaus ; Jr. Richard Charles ; Taft Wayne Curtis ; Korkosz Richard August ; Brooksby Glen William, Method and apparatus for TDMA slot synchronization with precision ranging.
Hershey John Erik (Ballston Lake NY) Hladik Stephen Michael (Albany NY) Saulnier Gary Jude (Rexford NY) Langan David Allen (Clifton Park NY), Method and apparatus for a low complexity satellite ranging system using Gaussian noise overlay.
Chow Peter S. (Redwood City CA) Cioffi John M. (Cupertino CA), Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digita.
Hester Phillip (Indian Harbour Beach FL) Highsmith William (Indialantic FL), Method and apparatus for channel allocation integrity in a communication network.
Davis Glenn A. ; Huddleston Paul Michael, Method and apparatus for communicating information between a headend and subscriber over a wide area network.
Cioffi,John M.; Bingham,John A. C.; Jacobsen,Krista S., Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system.
Cioffi,John M.; Bingham,John A. C.; Jacobsen,Krista S., Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system.
Bingham John A. C. (Palo Alto CA), Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems.
Bharat Tarachand Doshi ; Subrahmanyam Dravida ; George John Kustka ; Peter D. Magill ; Curtis A. Siller ; Kotikalapudi Sriram, Method and apparatus for digital transmission incorporating scrambling and forward error correction while preventing bit error spreading associated with descrambling.
Samoylenko Stanislav I. (33-75 Ostrovityanov Street Moscow RUX 117279 ), Method and apparatus for fault-tolerant transmission in multi-channel networks.
Carusone ; Jr. Anthony (Tucson AZ) Garrigan Albert W. (Wappingers Falls NY) Hunsinger Wayne (Endwell NY) Moffitt Gerald T. (San Jose CA) Taylor Jordan M. (Poughkeepsie NY) Tendolkar Nandakamar N. (Wa, Method and apparatus for isolating faults in a network having serially connected links.
Bobeck James D. ; Clark Edward Alan, Method and apparatus for messaging, signaling, and establishing a data link utilizing multiple modes over a multiple access broadband communications network.
Grube Gary W. (Barrington IL) Markison Timothy W. (Austin TX) Pendleton Matthew A. (Cedar Park TX) Rybicki Mathew A. (Austin TX), Method and apparatus for providing a communication system infrastructure.
Kull A. Corbett S. (Palatine IL) Bakke Bradley B. (Elgin IL) Arens John W. (Grayslake IL), Method and apparatus for symbol clock recovery from signal having wide frequency possibilities.
Ojanpera Tero (Oulu FIX) Keskitalo Ilkka (Oulu FIX), Method and apparatus for synchronizing subscriber equipment with base stations in a CDMA radio network.
Padovani Roberto (San Diego CA) Tiedemann ; Jr. Edward G. (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Butler Brian K. (Cardiff CA), Method and apparatus for the formatting of data for transmission.
Basile Carlo (Ossining NY) Cugnini Aldo G. (Tarrytown NY) Cavallerano Alan P. (Ossining NY) Bryan David A. (Danbury CT) Azadegan Faramarz (Brookfield CT) Tsinberg Mikhail (Riverdale NY) Ho Yo-Sung (O, Method and apparatus for the transmission and reception of a multicarrier digital television signal.
Bruckert Eugene J. (Arlington Heights IL) Sonnentag Richard A. (Lake Zurich IL), Method and apparatus for time aligning signals for reception in a code-division multiple access communication system.
Hulyalkar Samir N. (Ossining NY) Bryan David A. (Danbury CT) Basile Carlo (Ossining NY), Method and apparatus for transmission and reception of a digital television signal using multicarrier modulation.
Thompson Leo (Lilburn) Little Frank (Alpharetta) Pidgeon ; Jr. Rezin E. (Atlanta GA), Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links.
Bergins Lewis A. (Millis MA) Amundson Anthony P. (Holliston MA) Falk Jerry (Medway MA), Method and apparatus for transmitting data in adjustable-sized packets.
Yang Henry Sho-Che (Andover MA) Lauck Anthony G. (Wellesley MA) Ramakrishnan Kadangode K. (Maynard MA) Hawe William R. (Pepperell MA), Method and apparatus for use in a network of the ethernet type, to improve fairness by controlling collision backoff tim.
Katsuragawa Hiroshi,JPX ; Ono Shigeru,JPX, Method and device for signal decision, receiver and channel condition estimating method for a coding communication syst.
Pommier Daniel (Breal sous Montfort FRX) Alard Michel (Rennes FRX), Method and installation for digital communication, particularly between and toward moving vehicles.
Graupe Daniel (2821 Redwing Fort Collins CO 80521) Causey G. Donald (3504 Dunlop Chevy Chase MD 20015), Method and means for adaptively filtering near-stationary noise from an information bearing signal.
Cameron Dennis W. (Jackson MS) Roehr ; Jr. Walter C. (Reston VA) Petrovic Rade (Oxford MS) Bhagat Jai P. (Jackson MS) Garahi Masood (Madison MS) Hays William D. (Jackson MS) Ackerman David W. (Washin, Method and system for efficiently providing two way communication between a central network and mobile unit.
Gardner William R. (Encinitas CA) Jacobs Paul E. (San Diego CA), Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors.
Fijolek, John G.; Beser, Nurettin B.; Robinson, Philip T.; Gun, Levent, Method and system for virtual network administration with a data-over cable system.
Michael J. Geile ; Harold A. Roberts ; Michael J. Fort ; Jeff Solum, Method for adjusting power in a communication system with multicarrier telephony transport.
Pommier Daniel (Breal Sur Montfort FRX) LeFloch Bernard (Rennes FRX), Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers.
Raith Alex K. (Durham NC) Persson Bengt (Djursholm SEX) Sammarco Anthony J. (Garner NC) Hoff Anders C. E. (Hagersten SEX) Diachina John W. (Garner NC) Turcotte Joseph E. (Montreal CAX) Andersson Hkan, Method for communicating in a wireless communication system.
Le Floch Bernard (Rennes FRX) Rault Jean-Christophe (Rennes FRX) Pommier Daniel (Breal Sous Montfort FRX) Castelain Damien (Rennes FRX), Method for the broadcasting of digital data, notably for radio broadcasting at a high bit-rate towards mobile receivers,.
Helard Jean-Francois (Rennes FRX) Lemesle Jean-Michel (Rennes FRX) Halbert-Lassalle Roselyne (Rennes FRX) Le Floch Bernard (Rennes FRX), Method for the broadcasting of digital data, notably for radio broadcasting at high bit rate towards mobile receivers, w.
Rahuel Jean-Claude (Rennes FRX) Pommier Daniel (Rennes FRX), Method for the transmission of digital data in radio paging systems and corresponding radio paging receiver.
Geile,Michael J.; Brede,Jeffrey; Roberts,Harold A., Method for tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system.
Grallert Hans-Joachim (Groebenzell DEX), Method of and apparatus of individually monitoring transmission sections of a communications transmission link.
Eizenhfer Alfons (Altdorf DEX) Grauel Christoph (Feucht DEX), Method of and arrangement for synchronizing the receiver arrangements in a digital multiplex transmission system.
de Couasnon Tristan (Rennes FRX) Monnier Raoul (Noyal sur Vilaine FRX) Fouche Yvon (Chatenay Malabry FRX) Rault Jean-Bernard (Acigne FRX), Method of binary encoding the points of a constellation used in a multicarrier modulation of OFDM type.
Fouche Yvon (Chatenay Malabry FRX) Rault Jean-Bernard (Acigne FRX) de Couasnon Tristan (Rennes FRX) Monnier Raoul (Noyal S/Vilaine FRX), Method of realigning the local oscillators of a receiver and device for implementing the method.
Hirosaki Botaro (Tokyo JPX) Aoyagi Hidehito (Tokyo JPX), Method of synchronizing parallel channels of orthogonally multiplexed parallel data transmission system and improved aut.
Takiyasu Yoshihiro (Higashimurayama JPX) Amada Eiichi (Tokyo JPX) Jusa Hidehiko (Higashimurayama JPX) Ishifuji Tomoaki (Tokyo JPX) Adachi Shuichi (Hadano JPX) Ishii Genichi (Hachioji JPX), Method of wireless communication between base station and mobile station and multiple access communication system.
Lin Liwei (Berkeley CA) Nguyen Clark T.-C. (Berkeley CA) Howe Roger T. (Lafayette CA) Pisano Albert P. (Berkeley CA), Microelectromechanical signal processors.
Cooley David M. (547 Beverly Blvd. Upper Darby PA 19082) DiGiovanni Joseph J. (891 W. King Rd. Malvern PA 19355) Kaewell John D. (2295 Rittenhouse Sq. Bensalem PA 19020) Kurtz Scott D. (104 W. Bluebe, Modularly clustered radiotelephone system.
Cooley David M. (547 Beverly Blvd. Upper Darby PA 19082) DiGiovanni Joseph J. (891 W. King Rd. Malvern PA 19355) Kaewell John D. (2295 Rittenhouse Square Bensalem PA 19020) Kurtz Scott D. (104 W. Blu, Modularly clustered radiotelephone system.
Cooley David M. ; DiGiovanni Joseph J. ; Kaewell John D. ; Kurtz Scott D. ; Lemmo Mark A. ; Regensburg Michael W. ; Vessal David ; Johns Eric, Modularly clustered radiotelephone system.
David M. Cooley ; Joseph J. DiGiovanni ; John D. Kaewell ; Scott D. Kurtz ; Mark A. Lemmo ; Michael W. Regensburg ; David Vessal ; Eric Johns, Modularly clustered radiotelephone system.
Cooley David M. ; DiGiovanni Joseph J. ; Kaewell John D. ; Kurtz Scott D. ; Lemmo Mark A. ; Regensburg Michael W. ; Vessal David ; Johns Eric, Modulary clustered radiotelephone system.
McNamara Robert P. (San Jose CA) Murphy Timothy P. (Mountain View CA), Modulation and demodulation system employing AM-PSK and FSK for communication system using digital signals.
McNamara Robert P. (San Jose CA) Murphy Timothy P. (Mountain View CA) Long James C. (Sunnyvale CA), Modulation and demodulation system employing AM-PSK and QPSK communication system using digital signals.
Decker Dwight W. (Cupertino CA) Anwyl Gary A. (Palo Alto CA) Dankberg Mark D. (Encinitas CA) Miller Mark J. (Vista CA) Hart Stephen R. (Encinitas CA) Jaska Kristi A. (Encinitas CA), Multi-channel trellis encoder/decoder.
Moose Paul H. (P.O. Box 4181 Carmel CA 93921), Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channel.
Chouly Antoine (Paris FRX) Brajal Amrico (Villeneuve Le Roi FRX) Jourdan Sabine (Savigny Sur Orge FRX), Multi-user spread spectrum communication system.
Cioffi John M. (Cupertino CA) Tong Po (Fremont CA) Aslanis James T. (Mountain View CA) Gooch Antoinette H. (Palo Alto CA), Multicarrier modulation transmission system with variable delay.
Timm William C. ; Chen Walter Y. ; Frantz Gene A. ; Garcia Domingo G. ; Lu Xiaolin ; Mannering Dennis G. ; Polley Michael O. ; Riley Terence J. ; Shaver Donald P. ; Wu Song ; Gatherer Alan ; Schurr P, Multimode digital modem.
Papadopoulos Haralabos C. (Cambridge MA) Sundberg Carl-Erik W. (Chatham NJ), Multiple access cellular communication with circular interleaving and reduced dropped-packet runlengths.
Baum Kevin ; Nadgauda Nikhil S. ; Peterson Roger Laurin ; Kelton James Robert, Multiple user communication system, device and method with overlapping uplink carrier spectra.
Basnuevo Rogelio J. (Miami FL) Diaz Jose R. (Sunrise FL) Donaghue Norman J. (Reston WA) Valdes Jorge A. (Miami FL) Winter Stephen J. (Sunrise FL), Multiport - multipoint digital data service.
Geile,Michael J.; Herrmann,James J.; Wadman,Mark S.; Anderson,Brian D., Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing.
Sennott James W. (418 N. Linden St. Bloomington IL 61701) Senffner David (1104 N. Orange St. Peoria IL 61606), Navigation receiver with coupled signal-tracking channels.
Bodeep George E. (Point Pleasant NJ) Darcie Thomas E. (Middletown NJ) Lu Xiaolin (Matawan NJ), Network apparatus and method for providing two way broadband communications.
Curtis David C. ; Curtis Kathleen P. ; Denunzio David D. ; Reed William P. ; Wolak Robert A., Network configuration management system for digital communication networks.
Ohnsorge Horst (Freiberg DEX) Weygang Adolf (Stuttgart DEX) Heidemann Rolf (Tamm DEX), Optical communications system for the subscriber area with optical amplifiers.
Withers Andrew L. (Raleigh NC) Sutherland Joseph E. (Raleigh NC) Czerwiec Richard M. (Raleigh NC) Meador William C. (Raleigh NC) Burton Larry W. (Raleigh NC), Optical network unit.
Mau Joel (Rennes FRX) Soyer Patrice (Rennes FRX), Process and device for segmentation into sub-bands and for reconstruction of a digital signal, and corresponding device.
Botzenhardt Wolfgang (Gppingen DEX) Dais Siegfried (Gerlingen DEX) Kiencke Uwe (Regensburg DEX) Litschel Martin (Vaihingen DEX) Unruh Jan (Stuttgart DEX), Process for the localization of defective stations in local networks and associated interface controller.
Turban Karl-Albert (Leonberg DEX), Process, transmitter and receiver for data transmission with variable traffic volume and a control station for coordinat.
Bogart Frank J. (Boulder CO) Dedisse Mary R. (Denver CO) Divakaruni Radhakrishna S. (Boulder CO) Fette Charles J. (Parker CO) Knight Keith S. (Golden CO) Page Karen L. (Arvada CO) Paxton Thornton S. , Providing feature transparency between a plurality of PBXs.
Reed John D. (Arlington TX) Rozanski ; Jr. Walter J. (Hurst TX) Lynk ; Jr. Charles N. (Bedford TX), Quasi-duplex radio system using bi-directional hole extension.
Morais Douglas H. (Dollard des Ormeaux CAX), Radio communication system using frequency division multiplexing for transmission between a master station and a plurali.
Wieczorek Alfred B. (Plantation FL) Lynk ; Jr. Charles N. (Bedford TX) Rozanski ; Jr. Walter J. (Hurst TX) Zdunek Kenneth J. (Schaumburg IL) Mansfield Terry K. (Palatine IL), Radio frequency error detection and correction system.
Engstrom Bo,SEX ; Larsson Roger,SEX ; Wahlqvist Mattias,SEX ; Ostberg Christer,SEX, Random access orthogonal frequency division multiplex system and method.
Gledhill Jeffrey J. (Chandlers Ford GB2) Anikhindi Santosh V. (Southampton GB2) Avon Peter A. (Peterfield GB2), Reception of orthogonal frequency division multiplexed signals.
Filepp Robert (Springfield NJ) Gordon Michael L. (Dobbs Ferry NY) Bidwell Alexander W. (New York NY) Young Francis C. (Pearl River NY) Wolf Allan M. (Ridgefield CT) Meo Sam (New York NY) Tiemann Duan, Reception system for an interactive computer network and method of operation.
Sutterlin Philip H. (San Jose CA) Johnson Howard W. (Sunnyvale CA) Lee Chin-Chen (San Jose CA) Hurlbut Amy O. (San Francisco CA), Reconstruction of signals using redundant channels.
Dubberly Gregory T. (Atlanta GA) Bohannon Thomas A. (Winder GA), Reverse path allocation and contention resolution scheme for a broadband communications system.
Eriksson Hakan O. (Vallentuna SEX) Andersson Hakan C. (Stockholm SEX) Madfors Magnus E. (Sollentuna SEX), Segregation method of dynamic channel allocation in a mobile radio system.
Sistanizadeh Kamran ; Seazholtz John W. ; Lawrence William F., Shared use video processing systems for distributing program signals from multiplexed digitized information signals.
Takahashi Nobuaki,JPX ; Takahashi Susumu,JPX ; Sugiyama Kenji,JPX, Signal transmitting apparatus and signal receiving apparatus using orthogonal frequency division multiplexing.
Davis Gordon T. (Boca Raton FL) Landa Robert E. (Boca Raton FL) Mandalia Baiju D. (Boca Raton FL) van den Berg Jan W. (Boca Raton FL) Van Voorhis David C. (Boca Raton FL), Specialized communications processor for layered protocols.
Hansen David E. (Sunnyvale CA) McNamara Robert P. (San Jose CA) Long James C. (Sunnyvale CA) Serrone Michael J. (Sunnyvale CA) Phan Chinh Q. (Fremont CA) Tran Long K. (Milpitas CA), Spectrally efficient broadband transmission system.
Decker Dwight W. (Cupertino CA) Freret Payne (Los Altos CA) Hughes-Hartogs Dirk (Morgan Hill CA) Flowers Mark B. (Mountain View CA) Mueller Frederick L. (Palo Alto CA), Speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels.
Agee Brian G., Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays.
Hansen Terris L. (Aurora IL) Hyatt Wayne E. (Glenview IL) Leung Wu-Hon F. (Downers Grove IL) Montgomery Warren A. (DeKalb IL), State control for a real-time system utilizing a nonprocedural language.
Paneth Eric (Givataijm CA ILX) Handzel Mark J. (San Diego CA) Morley Steven A. (San Diego CA) Avis Graham M. (San Diego CA), Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or.
Paneth Eric (Givataijm CA ILX) Handzel Mark J. (San Diego CA) Morley Steven A. (San Diego CA) Avis Graham M. (San Diego CA), Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or.
Glenn Raymond R. (Round Rock TX) Powshok Andrew T. (Indialantic FL) Padgett Robert S. (Melbourne FL) Uriarte Pedro (Indian Harbour Beach FL) Cain Joseph B. (Indialantic FL) Thaker Gautam H. (West Mel, Switched point-to-point local area network control mechanism.
Markey Harold G. (Raleigh NC) West Lynn P. (Boulder CO), Switching and activity compression between telephone lines and digital communication channels.
Durkin Michael F. (Scottsdale AZ) Stilwell James H. (Mesa AZ) Thomas Russell D. (Chandler AZ), Symbol state trellis maximum likelihood detection method.
Michael J. Geile ; Jeffrey Brede ; Steven P. Buska ; Thomas Smigelski, Synchronization in a communications system with multicarrier telephony transport.
Giallorenzi Thomas R. (Salt Lake City UT) Rafter Mark T. (Park City UT) Greenwood Kenneth C. (Sandy UT) Press Harry B. (Sandy UT) Kingston Samuel C. (Salt Lake City UT), Synchronous multipoint-to-point CDMA communication system.
Tyrrell Raymond E. (Raleigh NC) Bishop O. Lamar (Raleigh NC) Powell William E. (Raleigh NC) Krisher Dale L. (Raleigh NC) Stephenson William H. (Raleigh NC) Briscoe M. Rodney (Raleigh NC) Thorne Hal A, Synchronous optical transmission system.
Geile,Michael J.; Roberts,Harold A., System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system.
Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.
Gilhousen Klein S. ; Jacobs Irwin M. ; Padovani Roberto ; Weaver ; Jr. Lindsay A. ; Wheatley ; III Charles E. ; Viterbi Andrew J., System and method for generating signal waveforms in a CDMA cellular telephone system.
Geile,Michael J.; Brede,Jeffrey, System and method for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing system.
Harris,Frederic Joel; Lowdermilk,Robert W.; Vuletic,Dragan; Weiss,Steven C., System and method for nondisruptively embedding an OFDM modulated data signal into a composite video signal.
Gitlin Richard D. ; Haas Zygmunt ; Karol Mark J. ; Woodworth Clark, System and method for optimizing spectral efficiency using time-frequency-code slicing.
Gitlin Richard D. ; Haas Zygmunt ; Karol Mark J. ; Woodworth Clark, System and method for optimizing spectral efficiency using time-frequency-code slicing.
Geile,Michael J.; Brede,Jeffrey, System and method for round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system.
Ortel William C. G. ; Beierle John D., System for integrated distribution of switched voice and television on coaxial cable with phase distortion correction.
Armstrong, Thomas R., System for the quantitative measurement of impairments in the communication channel of a quadrature amplitude modulation data communication system.
Savary Jean-Yves (Cesson Sevigne FRX) Blusseau Floriane (Thorigne Fouillard FRX), System of data transmission by sharing in the time-frequency space with channel organization.
Pin Didier J. (Mandelieu-la Napoule FRX) Badoual Henri (Perros-Guirec FRX), System of transmitting information between a central station and sub-stations.
Snijders Wilfred A. M. (Eindhoven NLX) Van Grinsven Petrus A. M. (Eindhoven NLX), TDM data communications network wherein each data frame is divided into respective lower rate sub-frames for respective.
Crisler Kenneth J. (Wheaton IL) Mohl Lawrence M. (Hoffman Estates IL) Kotzin Michael D. (Buffalo Grove IL) Van den Heuvel Anthony P. (Parkland FL), TDM/FDM communication system supporting both TDM and FDM-only communication units.
Van Grinsven Petrus ; A. M. (Eindhoven NLX) Snijders Wilfred A. M. (Eindhoven NLX), Telecommunication system and a main station and a substation for use in such a system.
Van Grinsven Petrus A. M. (Eindhoven NLX) Snijders Wilfred A. M. (Eindhoven NLX), Telecommunication system and a main station for use in such a system.
Dudek Michael T. (Agoura CA) Goodings Rupert (Cambridge GB3) Jones Emlyn (Harlow GB3) Odhams David C. (Epping GB3) Proctor Peter N. (Basingstoke GB3), Telecommunications system.
Schreiber William F. (Cambridge MA) Polley Michael O. (Belmont MA), Television transmission system using spread spectrum and orthogonal frequency-division multiplex.
Geile,Michael J.; Brede,Jeffrey; Roberts,Harold A., Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing.
Bestler Caitlin B. (1325 W. Fargo Chicago IL 60626) Rabii Khosro M. (3827 Galena Ct. Arlington Heights IL 60004), Transmission modulator for cable television upstream data transmission.
Collier Christopher J. (Carshalton Beeches GB2) Murray Robert J. (Horley GB2), Transmission system for sending two signals simultaneously on the same communications channel.
Bales Bruce M. (Louisville CO) Crumpley Robert L. (Westminster CO) North Sandra S. (Golden CO) Thieler Stephen M. (Boulder CO), Transparent signaling for remote terminals.
Dapper Mark J. ; Geile Michael J., Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith.
Sutherland Joseph E. (Raleigh NC), Video line shelf arrangement in an optical fiber telecommunications network providing broadband switched video services.
Bustamante Herman (Millbrae CA) Natali Francis (Townsend WA) Magill David T. (Palo Alto CA), Wireless direct sequence spread spectrum digital cellular telephone system.
Hylton Denny L. ; Farris Robert D. ; Flaherty Stephen J. ; Backus Richard G. ; Smith Faye M. ; Herhei John Andrew ; Millet Raymond Ian ; Forness Nolan Marcus ; Stier Charles H., Wireless on-premises video distribution using digital multiplexing.
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