[특허]Base-site synchronization in a communication system

Base-site synchronization in a communication system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-007/00 H04J-003/06
출원번호	US-0856426 (1992-03-23)
발명자 / 주소	Averbuch Nimrod (Buffalo Grove IL)
출원인 / 주소	Motorola, Inc. (Schaumburg IL 02)
인용정보	피인용 횟수 : 80 인용 특허 : 0

초록 ▼

A central-site (100) has located within it a synchronization system for purposes of backing-up a GPS external synchronization system. The central-site (100) is coupled to a plurality of base-sites (102, 103) which are required to be synchronized to one another. When the GPS signal is lost, the synchronization system within the central-site (100) allows the plurality of base-sites (102, 103) to maintain synchronization to one another. In this manner, the necessity for a synchronization system within each of the plurality of base-sites (102,103) is eliminated.

대표청구항 ▼

A method of maintaining synchronization in a communication system, the communication system having a central-site coupled to a plurality of base-sites, the plurality of base-sites having been previously synchronized to one another by an external synchronization system, the external synchronization system having been subsequently removed, the method of maintaining synchronization comprising the steps of: sending, from each of the plurality of base-sites, an initiate backup message to the central-site upon loss of the external synchronization system; measuring, at the central-site, a round-trip time delay between the central-site and the plurality of base-sites; measuring, at each of the plurality of base-sites, a round-trip time delay between each of the plurality of base-sites and the central-site; comparing, at each of the plurality of base-sites, said round-trip time delays measured by each of the plurality of base-sites and the central-site; and maintaining synchronization among the plurality of base-sites based on said step of comparing.

이 특허를 인용한 특허 (80)

Birmingham, Kiley, Adaptive data transmission for a digital in-band modem operating over a voice channel.
상세보기
Zhao Wei ; Arnold Steven ; Noerpel Anthony ; Roos Dave, Apparatus and method for grouping carriers to minimize the occurrence of call blocking in a satellite-based communications network.
상세보기
Zhao, Wei; Roos, David, Apparatus and method for positioning single-offset zones in a spot beam coverage area to maximize call duration in a satellite-based communications network.
상세보기
Walsh William J., Apparatus and method for providing synchronization of base-stations in a communication system.
상세보기
Ojaniemi Heikki, Apparatus and method for synchronizing base sites individually in a communication system.
상세보기
Camp, Jr.,William O., Apparatus, methods and computer program products for GPS signal acquisition using an adaptive search engine.
상세보기
Camp, Jr.,William O., Apparatus, methods and computer program products for signal acquisition using common demodulation templates.
상세보기
Hong, Leon L.; Quimby, David; Johnson, Ken, Automatic gain control.
상세보기
Quimby, David; Johnson, Ken; Hong, Leon L., Automatic gain control in a navigation device.
상세보기
Lundh, Peter; Konradsson, Per, Base station oscillator regulation independent of transport network clocks in cellular telecommunications network.
상세보기
Robbins, James E., Differential GPS corrections using virtual stations.
상세보기
Abrams, Robert J.; Chang, Young-Fu; Erne, Jaap T.; Garland, Stuart M.; Johnson, John A.; Kamieniecki, Richard A.; Lee, Chinmei C.; Pope, Francis J.; Wouda, Marilyn A.; Yang, ZhongJin, Dynamic adjustment of timers in a communication network.
상세보기
Birmingham, Kiley, Echo cancellation in wireless inband signaling modem.
상세보기
Birmingham, Kiley; Hong, Leon L., Efficient error correction scheme for data transmission in a wireless in-band signaling system.
상세보기
Camp, Jr.,William O.; Michalak,Gerald; Bloebaum,L. Scott, Estimating GPS time at cellular terminals based on timing of information from base stations and satellites.
상세보기
Ohlson John (Mt. View CA) Natali Francis D. (Pt. Townsend WA), Frequency hopped return link with net entry channel for a satellite personal communications system.
상세보기
Robbins, James E., GPS correction methods, apparatus and signals.
상세보기
Krasner Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner, Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner, Norman F., GPS receiver and method for processing GPS signals.
상세보기
Krasner Norman F., GPS receiver having power management.
상세보기
Krasner Norman F., GPS receiver utilizing a communication link.
상세보기
Krasner Norman F., GPS receiver utilizing a communication link.
상세보기
Norman F. Krasner, GPS receiver utilizing a communication link.
상세보기
Norman F. Krasner, GPS receiver utilizing a communication link.
상세보기
Krasner Norman F., GPS receivers and garments containing GPS receivers and methods for using these GPS receivers.
상세보기
Krasner Norman F., GPS receivers and garments containing GPS receivers and methods for using these GPS receivers.
상세보기
Dinkins Gilbert M., GPS synchronization of CTS transmitters for an interactive network.
상세보기
Chandra Joshi ; Anthony R. Noerpel ; Gerard Stelzer ; Mohammad Soleimani ; Prabir Datta IN; Xiaoping He, Immediate channel assignment in a wireless system.
상세보기
Preston, Dan A.; Preston, Joseph D.; Leyendecker, Robert; Eatherly, Wayne; Proctor, Rod L.; Smith, Phillip R., In-band signaling for data communications over digital wireless telecommunications networks.
상세보기
Preston, Dan A.; Preston, Joseph; Proctor, Rod L., In-band signaling for synchronization in a voice communications network.
상세보기
Ariel, Eliyahu; Zivhon, Ran, Indoor satellite navigation system.
상세보기
Dinkins Gilbert M. (Herndon VA), Interactive radio.
상세보기
Sutton, Todd; Dehesh, Houtan; Wegrzyn, Jan K.; Moss, Roy G.; Faus, Juan; Clapp, David T., Loopback processing method and apparatus.
상세보기
Yoon, Chang-June C. J.; Walsh, Patrick R., Method and apparatus for automatic control of time-of-day synchronization and merging of networks.
상세보기
Krasner Norman F., Method and apparatus for determining the location of an object which may have an obstructed view of the sky.
상세보기
Krasner Norman F., Method and apparatus for determining the location of an object which may have an obstructed view of the sky.
상세보기
Lyons Paul W., Method and apparatus for multiplexing complete MPEG transport streams from multiple sources using a PLL coupled to both.
상세보기
Hellum P.ang.l,NOX ; Aksnes Kristin,NOX, Method and apparatus for synchronization of time stamping.
상세보기
Rigby,Gene; Rigby,Amy Lee, Method and system for determining demand in a water distribution system.
상세보기
Thadasina, Nivedan; Csapo, John; Gilliland, Paul, Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network.
상세보기
Sheynblat Leonid, Method and system for using altitude information in a satellite positioning system.
상세보기
Sheynblat Leonid, Method and system for using altitude information in a satellite positioning system.
상세보기
Preston, Dan A.; Preston, Joseph; Leyendecker, Robert; Eatherly, Wayne; Proctor, Rod L., Method for in-band signaling of data over digital wireless telecommunications networks.
상세보기
Preston,Dan A.; Preston,Joseph; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L., Method for in-band signaling of data over digital wireless telecommunications networks.
상세보기
Fournier, Andre F. A.; Jahani, Allen A.; Sawyer, Michael S.; Grant, Stephen M., Method for pulling geographic location data from a remote wireless telecommunications mobile unit.
상세보기
Barroso,Christopher Burke; Chen,Byron Hua; Vannucci,Giovanni, Method of timing calibration.
상세보기
Petch Byran K. ; Lindsay Charles L. ; Jensen Ryan N., Methods and apparatus for synchronization in a wireless network.
상세보기
Petch, Bryan K.; Lindsay, Charles L.; Jensen, Ryan N., Methods and apparatus for synchronization in a wireless network.
상세보기
Krasner, Norman F.; Jolley, Edward V., Methods and apparatuses for using mobile GPS receivers to synchronize basestations in cellular networks.
상세보기
Krasner, Norman F; Jolley, Edward V, Methods and apparatuses for using mobile GPS receivers to synchronize basestations in cellular networks.
상세보기
Krasner,Norman; Jolley,Edward Vincent, Methods and apparatuses for using mobile GPS receivers to synchronize basestations in cellular networks.
상세보기
Hirano, Michael, Methods for in-band signaling through enhanced variable-rate codecs.
상세보기
Hirano, Michael; Birmingham, Kiley; Zhao, Lee; Quimby, David, Methods for in-band signaling through enhanced variable-rate codecs.
상세보기
Osborn, William R.; Bloebaum, Leland S., Methods, systems and computer program products for providing location determination information to an assisted location service.
상세보기
Preston,Dan A.; Preston,Joseph D.; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L., Network delay identification method and apparatus.
상세보기
Preston,Dan A.; Preston,Joseph D.; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L., Network delay identification method and apparatus.
상세보기
Carlson, John P.; Dawson, Martin, Network measurement report caching for location of mobile devices.
상세보기
Noerpel Anthony ; He Xiaoping, Paging reception assurance in a multiply registered wireless transceiver.
상세보기
Brown Thomas A. ; Baker Marvin C., RF simulcasting system with dynamic wide-range automatic synchronization.
상세보기
Smith, Stephen F.; Moore, James A., Robust low-frequency spread-spectrum navigation system.
상세보기
Kassinen,Juha P.; Parkkinen,Jari; Niemela,Kari; Annala,Heikki; Melero,Juan, Synchronisation of frame transmissions in a telecommunications network.
상세보기
Peter Carl Birger Lundh SE; Jasmina Nesic SE, Synchronization for cellular telecommunications network.
상세보기
Kauhanen,Jouni, Synchronization method and synchronization arrangement.
상세보기
Preston,Dan A.; Preston,Joseph D.; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L.; Smith,Philip R., Synchronizer for use with improved in-band signaling for data communications over digital wireless telecommunications networks.
상세보기
Carlson, John; Islam, Tariqul; Mazlum, Selcuk, System and method for locating UMTS user equipment using measurement reports.
상세보기
Mazlum, Selcuk; Islam, Tariqul, System and method for locating an unknown base station.
상세보기
Lemieux Yves (Kirkland CAX), System and method for rapid selection of synchronization sources in a mobile telecommunications network.
상세보기
Edwards, Timothy P.; Gunturu, Rajasekhar R.; Sandri, Brian D.; Merrick, John Patrick, Time monitor.
상세보기
Edwards, Timothy P.; Gunturu, Rajasekhar R.; Sandri, Brian D.; Merrick, John Patrick, Time monitor.
상세보기
Edwards, Timothy P.; Gunturu, Rajasekhar R.; Sandri, Brian D.; Merrick, John Patrick, Time monitor.
상세보기
Smith, Stephen F.; Moore, James A., Triply redundant integrated navigation and asset visibility system.
상세보기
Garrett, Darrin; Hong, Leon L., Using a bluetooth capable mobile phone to access a remote network.
상세보기
Moinzadeh, Kamyar; Garret, Darrin L.; Quimby, David C., Voice channel control of wireless packet data communications.
상세보기
Moinzadeh, Kamyar; Garrett, Darrin L.; Quimby, David C., Voice channel control of wireless packet data communications.
상세보기
Birmingham, Kiley, Wireless in-band signaling with in-vehicle systems.
상세보기
Birmingham, Kiley, Wireless in-band signaling with in-vehicle systems.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Base-site synchronization in a communication system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (80)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Base-site synchronization in a communication system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (80)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트