RU93049090A - IDENTIFICATION SYSTEM WITH A POLLING DEVICE AND A LOT OF ANSWERS, AN IDENTIFYING SYSTEM IDENTIFICATION - Google Patents

IDENTIFICATION SYSTEM WITH A POLLING DEVICE AND A LOT OF ANSWERS, AN IDENTIFYING SYSTEM IDENTIFICATION

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Publication number
RU93049090A
RU93049090A RU93049090/09A RU93049090A RU93049090A RU 93049090 A RU93049090 A RU 93049090A RU 93049090/09 A RU93049090/09 A RU 93049090/09A RU 93049090 A RU93049090 A RU 93049090A RU 93049090 A RU93049090 A RU 93049090A
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RU
Russia
Prior art keywords
transponder
response signal
signal
identification
polling
Prior art date
Application number
RU93049090/09A
Other languages
Russian (ru)
Other versions
RU2156540C2 (en
Inventor
Джон Кэмилл МАРШ Майкл
Айдан Ван Зил Клинтон
Original Assignee
Си-Эс-Ай-Ар
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Application filed by Си-Эс-Ай-Ар filed Critical Си-Эс-Ай-Ар
Publication of RU93049090A publication Critical patent/RU93049090A/en
Application granted granted Critical
Publication of RU2156540C2 publication Critical patent/RU2156540C2/en

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Claims (1)

Система идентификации, содержащая опросное устройство и множество ответчиков, в которой опросное устройство включает в себя передатчик опросного сигнала ответчику, приемник для приема ответного сигнала из ответчика и процессор для идентификации ответчика из данных в ответном сигнале. Дополнительно предусматривается средство выделения тактовой частоты для извлечения тактового сигнала ответчика из ответного сигнала, который используется для синхронизации модификации опросного сигнала с ответным сигналом из ответчика. Каждый ответчик содержит приемник для приема опросного сигнала, тактовый генератор ответчика, генератор кода, передатчик и модулятор, соединенный с генератором кода с тем, чтобы по приему опросного сигнала ответчик передавал ответный сигнал, содержащий данные, которые идентифицируют ответчик. Опросное устройство приспособлено демодулировать успешный прием ответного сигнала из любого ответчика, чтобы извлечь сигнал синхронизации из ответного сигнала этого ответчика, модифицировать опросный сигнал синхронно с ответным сигналом и показать успешный прием ответного сигнала. Каждый ответчик дополнительно включает в себя средство, чувствительное к соответствующей модификации опросного сигнала, для прекращения передачи его ответного сигнала.An identification system comprising an interrogator and a plurality of transponders, wherein the interrogator includes an interrogator transmitter, a receiver for receiving a response signal from the transponder, and a processor for identifying the transponder from the data in the response signal. Additionally, a clock frequency extractor is provided for extracting a responder clock from the response signal, which is used to synchronize the modification of the interrogation signal with the response signal from the transponder. Each transponder contains a receiver for receiving a polling signal, a transponder clock generator, a code generator, a transmitter, and a modulator connected to the code generator so that, upon reception of the polling signal, the transponder transmits a response signal containing data that identifies the transponder. The polling device is adapted to demodulate the successful reception of a response signal from any transponder in order to extract the synchronization signal from the response signal of this transponder, modify the polling signal synchronously with the response signal and show the successful reception of the response signal. Each transponder additionally includes means sensitive to a corresponding modification of the interrogation signal for stopping the transmission of its response signal.
RU93049090/09A 1992-08-26 1993-08-25 Identification system with querying unit and multiple responding units, responder of identification system RU2156540C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA92/6446 1992-08-26
ZA926446 1992-08-26

Publications (2)

Publication Number Publication Date
RU93049090A true RU93049090A (en) 1996-01-10
RU2156540C2 RU2156540C2 (en) 2000-09-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93049090/09A RU2156540C2 (en) 1992-08-26 1993-08-25 Identification system with querying unit and multiple responding units, responder of identification system

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US (2) US5557280A (en)
EP (1) EP0585132B1 (en)
JP (1) JP3290003B2 (en)
CN (1) CN1047667C (en)
AT (1) ATE171547T1 (en)
AU (2) AU656088B2 (en)
CA (1) CA2104829C (en)
DE (1) DE69321179T2 (en)
DK (1) DK0585132T3 (en)
ES (1) ES2121954T3 (en)
RU (1) RU2156540C2 (en)
SG (1) SG48262A1 (en)
TW (1) TW297192B (en)
UA (1) UA37182C2 (en)
ZA (1) ZA936267B (en)

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