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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0487284 (1983-04-21) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 419 인용 특허 : 6 |
This invention relates to LIMIS systems, devices and methods. Specifically, it relates to the attachment of passive transceivers which can be altered or coded, erased and recoded to various items as “tags”, and the use of active transceivers of various types for Location, Identification, measurement
This invention relates to LIMIS systems, devices and methods. Specifically, it relates to the attachment of passive transceivers which can be altered or coded, erased and recoded to various items as “tags”, and the use of active transceivers of various types for Location, Identification, measurement of the Movement of, Inventory and analytical, control, guidance and sorting Systems (LIMIS) using and analyzing the information received from the items. The devices include at least one small unitary, passive transceiver (PT) and at least one active transceiver (AT) and where necessary, one or more repeater-relays and/or reflectors. The PT is attached to or embedded in the item to be identified. The PTs are encoded, decoded, identified, and located and/or their motion is detected and/or measured by the AT. The AT unit functions can be accomplished by one or more independent devices or a single device.
A monitoring and control system comprising: active transceiver (AT) means including computing means and memory means and adapted for producing and transmitting encoded interrogation signals by at least one of electromagnetic radiation (EMR) and sound and; unitary, self-contained passive transceiver
A monitoring and control system comprising: active transceiver (AT) means including computing means and memory means and adapted for producing and transmitting encoded interrogation signals by at least one of electromagnetic radiation (EMR) and sound and; unitary, self-contained passive transceiver (PT) means comprising encodeable and recodeable memory means, including at least one form of ROM memory means, means for encoding and recoding said memory means on the receipt of, respectively, encoding and recoding signals from said AT means, and transmission means adapted to transmit at least one indentification signal only in response to the receipt of said encoded interrogation signal.
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