[특허]Cordless telephone arranged for operating with multiple portable units in a frequency hopping system

[미국특허] Cordless telephone arranged for operating with multiple portable units in a frequency hopping system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-002/06 H04L-027/30
출원번호	US-0942026 (1997-10-01)
발명자 / 주소	Ciccone Joseph L. Kasturia Sanjay Nall David C. Ng Chu Padgett Jay E. Warwick Colin A.
출원인 / 주소	Lucent Technologies Inc.
인용정보	피인용 횟수 : 32 인용 특허 : 10

초록 ▼

A cordless telephone is arranged for operation in a frequency hopping system includes an arrangement which achieves optimum utilization of multiple cordless telephone portable units by permitting these units to simultaneously access a common base unit. A physical layer of an air interface is provided by a two channel time division multiple access protocol for supporting a two channel multiple access system for the portable units. These two channels are considered as virtual channels and not dedicated to any particular telephone line, as in the case of two line telephone products. Nor are these two channels dedicated to any particular portable unit, but rather they are available for use by any portable unit in the telephone. A signaling layer of the air interface is provided for supporting the two channel multiple access system. Two types of subframes, acquisition and traffic, are illustratively provided in the air interface for the cordless telephone. The acquisition subframe is a synchronization frame that is configured for fast and reliable symbol and frame timing recovery. Single frame acquisition even in an extreme user hostile environment is achievable. Traffic subframes are used after a communication link has been built and full voice and/or data is interchanged. Signaling between the base unit and portable units is supported during both the traffic mode and the acquisition mode.

대표청구항 ▼

[ We claim:] [1.] A method of communicating for a cordless telephone having a base unit and a plurality of handset units employed in a frequency hopping system, the base unit including a first transmitter and a first receiver and each handset unit in the plurality of handset units including a second transmitter and a second receiver for respectively transmitting to the first receiver and receiving from the first transmitter in the base unit over any one of a plurality of communication channels, the method comprising the steps of:generating in the base unit a communication frame for use by the base unit in communicating on each of the frequency hopping channels used in communicating with the handset units, a first half of said communication frame being used for transmitting a first signal to said plurality of handset units, a second half of said communication frame being partitioned by a first controller into a first receive subframe and a second receive subframe, wherein the first receive subframe and the second receive subframe are both for containing voice data transmitted by any one of the plurality of handset units; andgenerating in each one of the plurality of handset units a second signal for use by each of said handset units for transmitting to the base unit in either said first receive subframe or said second receive subframe.

이 특허에 인용된 특허 (10) 인용/피인용 타임라인 분석

Schilling Donald L. (Sands Point NY), CDMA/TDMA spread-spectrum communications system and method.
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Highsmith William (Indialantic FL), Communication link having dynamically allocatable auxiliary channel for data bursts.
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Nealon William J. ; Rajan Heidi Anne, Cordless telephone arranged for operating with multiple portable units in a frequency hopping system.
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Scott Logan, Efficient time division duplex communication system with interleaved format and timing adjustment control.
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Olenick Stephen M. (Oakhurst NJ) Johnson Robert A. (Freehold NJ) Frydryck Russell E. (Atlantic Highlands NJ), Frequency-hopping radio communication network.
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Su Chun-Meng (Lafayette CA) Behtash Saman (Berkeley CA) Jarett Keith (Oakland CA), Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit.
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Uddenfeldt Jan,SEX, Method and apparatus for frequency planning in a multi-system cellular communication network.
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Bose Sanjay K. (Kanpur INX), Method for random-access radio-frequency data communications.
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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.
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Crisler Kenneth J. (2116 Kentucky Ct. Wheaton IL 60187) Needham Michael L. (354 W. Hellen Rd. Palatine IL 60067), Transmission signalling technique for a reservation request.
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이 특허를 인용한 특허 (32) 인용/피인용 타임라인 분석

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Shuey,Kenneth C.; Hemminger,Rodney C.; Mason, Jr.,Robert T.; Hodges,Eugene W., Dynamic self-configuring metering network.
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Borleske,Andrew J.; Shuey,Kenneth C.; Mason, Jr.,Robert T., In-home display communicates with a fixed network meter reading system.
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Dicker Olaf ; Sastrodjojo Paulus ; Sydon Uwe ; Kochmann Juergen, Method and system for table implemented frequency selection in a frequency hopping cordless telephone system.
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Dronamraju,Srirama; Dahdouh,Khalil, Method and system for wireless bridging.
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Strakovsky, Leonid, Methods and apparatus for frequency hopping analog cordless telephony.
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Mason, Jr.,Robert T.; Hemminger,Rodney C.; Hodges,Eugene W.; Brian,Brent R., Microprocessor decoder frequency hopping spread spectrum communications receiver.
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Borleske,Andrew J., Multipurpose interface for an automated meter reading device.
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Borleske, Andrew J.; Shuey, Kenneth C.; Mason, Jr., Robert T.; Uy, David V., Optimized data collection in a wireless fixed network metering system.
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Richeson, Keith D.; Uy, David; Borleske, Andrew J.; Brian, Brent R.; Mason, Jr., Robert T.; Hemminger, Rodney C.; Christopher, Russell G.; Kelley, Raymond, Over the air microcontroller flash memory updates.
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Ardalan,Sasan H.; Van den Bout,David E., Remote access to electronic meters using a TCP/IP protocol suite.
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Sartore, Ronald H.; Williams, Timothy J., Spread spectrum clock for USB.
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Scoggins, Sean M.; Christopher, Russell G.; Garianov, Alexei; Rudran, Dileep, System and method for automated configuration of meters.
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Christopher,Russell G.; Kelley,Raymond; Rudran,Dileep; Nemecz,Susane K., System and method for creating multiple operating territories within a meter reading system.
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Borleske,Andrew J.; Scoggins,Sean M.; Uy,David, System and method for efficient configuration in a fixed network automated meter reading system.
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Brian,Brent R.; Borleske,Andrew J.; Mason, Jr.,Robert T., System and method for improved transmission of meter data.
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Dicker, Olaf; Sydon, Uwe, System and method for minimizing the loss of information in cordless communications.
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Scoggins, Sean M.; Christopher, Russell G.; Garianov, Alexei; Smith, Kathryn J.; Nemecz, Susane K.; Rudran, Dileep, System for automated management of spontaneous node migration in a distributed fixed wireless network.
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Scoggins,Sean M.; Mills,Stuart; Mason,Robert T.; Borleske,Andrew J.; Smith,Kathryn J.; Rudran,Dileep, System for automatically enforcing a demand reset in a fixed network of electricity meters.
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Mason, Jr., Robert T.; Richeson, Keith D.; Minton, III, Charlie E., Techniques for limiting demand from an electricity meter with an installed relay.
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Mason, Jr.,Robert T; Borleske,Andrew J; Shuey,Kenneth C, Using a fixed network wireless data collection system to improve utility responsiveness to power outages.
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Bragg, Steven D.; Yost, Robert W., Wakeup and interrogation of meter-reading devices using licensed narrowband and unlicensed wideband radio communication.
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Kotzin, Michael D., Wireless device cradle with spatial antenna diversity capability.
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A	생활필수품
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A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Cordless telephone arranged for operating with multiple portable units in a frequency hopping system 원문보기