KR100752946B1 - 통신 시스템에서 소스 디바이스 동기화를 위한 방법 및장치 - Google Patents
통신 시스템에서 소스 디바이스 동기화를 위한 방법 및장치 Download PDFInfo
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- KR100752946B1 KR100752946B1 KR1020057016885A KR20057016885A KR100752946B1 KR 100752946 B1 KR100752946 B1 KR 100752946B1 KR 1020057016885 A KR1020057016885 A KR 1020057016885A KR 20057016885 A KR20057016885 A KR 20057016885A KR 100752946 B1 KR100752946 B1 KR 100752946B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
- G06K7/10039—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
Abstract
Description
Claims (24)
- 통신 방법에 있어서,복수의 신호 소스들을 활성화하는 단계,동기화 이벤트에 응답하여 상기 복수의 신호 소스들이 동일한 변조 기술을 사용하여 데이터를 동시에 전송하도록 상기 복수의 신호 소스들에 상기 동기화 이벤트를 전송하는 단계로서, 상기 복수의 신호 소스들은 식별 데이터를 저장하고 적어도 하나의 전송 패스(transmission pass)를 갖는 다수의 패스 전송 알고리즘에 따라 이용 가능한 전송 채널들의 세트를 통해 상기 저장된 식별 데이터의 적어도 일부를 전송하고, 상기 신호 소스들은 상기 저장된 식별 데이터의 부분들을 이용하여 상기 다수의 패스 전송 알고리즘의 각각의 패스 내의 상기 전송 채널들을 결정하는, 상기 동기화 이벤트 전송 단계, 및상기 복수의 신호 소스들로부터 상기 전송된 데이터를 복조하는 단계를 포함하는, 통신 방법.
- 제 1 항에 있어서,상기 동기화 이벤트는 미리 결정된 지속기간 동안 캐리어 신호의 전송의 부재인, 통신 방법.
- 제 2 항에 있어서,상기 복수의 신호 소스들 내의 각각의 신호 소스는 수동적으로 전력 공급받는, 통신 방법.
- 제 2 항에 있어서,상기 동기화 이벤트는 상기 캐리어 신호의 미리 결정된 페이즈에서 시작하고 종료하는, 통신 방법.
- 제 4 항에 있어서,상기 캐리어 신호의 상기 미리 결정된 페이즈는 포지티브-고잉 제로 교차(positive-going zero crossing)인, 통신 방법.
- 제 1 항에 있어서,상기 복수의 신호 소스들은 상기 동기화 이벤트가 끝났음을 검출시 데이터를 전송하는, 통신 방법.
- 통신 시스템에 있어서,각각 데이터를 전송하기 위한 복수의 소스 디바이스들, 및상기 복수의 소스 디바이스들을 활성화하고, 동기화 이벤트에 응답하여 상기 복수의 소스 디바이스들이 동일한 변조 기술을 사용하여 데이터를 동시에 전송하도록 상기 복수의 소스 디바이스들에 상기 동기화 이벤트를 전송하고, 상기 복수의 신호 소스들로부터 상기 전송된 데이터를 복조하는 적어도 하나의 수신 디바이스(destination device)를 포함하고,상기 복수의 소스 디바이스들은 또한 식별 데이터를 저장하고 적어도 하나의 전송 패스를 갖는 다수의 패스 전송 알고리즘에 따라 이용 가능한 전송 채널들의 세트 상에 상기 데이터의 적어도 일부를 전송하고, 상기 소스 디바이스들은 상기 다수의 패스 전송 알고리즘 내의 그들의 전송 채널들을 결정하기 위해 그들의 저장된 식별 데이터의 부분들을 이용하는, 통신 시스템.
- 제 7 항에 있어서,상기 복수의 소스 디바이스들 내의 각각의 상기 소스 디바이스는 수동적으로 전력 공급되는, 통신 시스템.
- 제 7 항에 있어서,상기 복수의 소스 디바이스들은 또한 상기 동기화 이벤트가 끝났음을 검출시 데이터를 전송하는, 통신 시스템.
- 제 7 항에 있어서,상기 복수의 소스 디바이스들 내의 적어도 하나의 소스 디바이스는 자체-전력 공급되는, 통신 시스템.
- 제 1 항에 있어서,상기 동기화 이벤트는 또한 상기 복수의 신호 소스들이 자신들의 파워-온 범위(power-on range)를 변경시키도록 하는, 통신 방법.
- 제 1 항에 있어서,상기 동기화 이벤트는 미리 결정된 지속기간 동안의 캐리어 신호의 존재인, 통신 방법.
- 제 12 항에 있어서,상기 복수의 신호 소스들에서의 각각의 신호 소스는 자체-전력 공급되는, 통신 방법.
- 제 1 항에 있어서,상기 동기화 이벤트를 전송하는 단계는 펄스 폭 변조를 이용하여 수행되는, 통신 방법.
- 제 14 항에 있어서,상기 펄스 폭 변조는 상기 복수의 신호 소스들에 상기 동기화 이벤트 외에도 정보를 전달하는, 통신 방법.
- 제 1 항에 있어서,상기 복수의 신호 소스들은 캐리어 신호로부터 유도된 심볼 클럭을 이용하여 동시에 전송하는, 통신 방법.
- 제 1 항에 있어서,상기 복수의 신호 소스들에서의 각각의 신호 소스는 국부적으로 발생된 심볼 클럭을 이용하여 동시에 전송하는, 통신 방법.
- 제 17 항에 있어서,상기 국부적으로 발생된 심볼 클럭은 상기 동기화 이벤트에 기초하여 미리 결정된 페이즈에서 시작하는, 통신 방법.
- 제 17 항에 있어서,상기 국부적으로 발생된 심볼 클럭은 캐리어 신호로부터 유도되는, 통신 방법.
- 제 7 항에 있어서,상기 적어도 하나의 수신 디바이스는 또한 펄스 폭 변조를 이용하여 상기 동기화 이벤트를 전송하는, 통신 시스템.
- 제 7 항에 있어서,상기 복수의 소스 디바이스들은 또한 캐리어 신호로부터 유도된 심볼 클럭을 이용하여 데이터를 동시에 전송하는, 통신 시스템.
- 제 7 항에 있어서,상기 복수의 소스 디바이스들은 또한 국부적으로 발생된 심볼 클럭을 이용하여 데이터를 동시에 전송하는, 통신 시스템.
- 제 22 항에 있어서,상기 국부적으로 발생된 심볼 클럭은 상기 동기화 이벤트에 기초하여 미리 결정된 페이즈에서 시작하는, 통신 시스템.
- 제 22 항에 있어서,상기 국부적으로 발생된 심볼 클럭은 캐리어 신호로부터 유도되는, 통신 시스템.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US10/385,893 | 2003-03-11 | ||
US10/385,893 US7023817B2 (en) | 2003-03-11 | 2003-03-11 | Method and apparatus for source device synchronization in a communication system |
PCT/US2004/006922 WO2004082304A2 (en) | 2003-03-11 | 2004-03-04 | Method and apparatus for source device synchronization in a communication system |
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KR20050115902A KR20050115902A (ko) | 2005-12-08 |
KR100752946B1 true KR100752946B1 (ko) | 2007-08-30 |
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KR1020057016885A KR100752946B1 (ko) | 2003-03-11 | 2004-03-04 | 통신 시스템에서 소스 디바이스 동기화를 위한 방법 및장치 |
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US (1) | US7023817B2 (ko) |
EP (1) | EP1601981B1 (ko) |
JP (1) | JP2006521036A (ko) |
KR (1) | KR100752946B1 (ko) |
CN (1) | CN100480710C (ko) |
TW (1) | TWI242346B (ko) |
WO (1) | WO2004082304A2 (ko) |
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WO2004082304A2 (en) | 2004-09-23 |
EP1601981A2 (en) | 2005-12-07 |
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TWI242346B (en) | 2005-10-21 |
JP2006521036A (ja) | 2006-09-14 |
CN100480710C (zh) | 2009-04-22 |
EP1601981B1 (en) | 2015-07-22 |
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US7023817B2 (en) | 2006-04-04 |
EP1601981A4 (en) | 2011-11-02 |
US20040179510A1 (en) | 2004-09-16 |
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