Recognition code transmission method and circuit arrangement

A technology for identifying codes and circuit devices, applied in electrical components, transmission systems, etc., to solve problems such as failure of reading machine interpretation
CN1452325AInactive Publication Date: 2003-10-29HOLTEK SEMICON
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOLTEK SEMICON
Publication Date
2003-10-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device for controlling the transmission of ID code on RF recognition label is composed of a timing circuit, a working region selector consisting of a counter, a random numeral generator and a comparator for comparing the counter's value with the output of random numeral generator to povide an enable signal if they are matched, and a memory for storing the ID code and outputting it when said enable signal is received. It can prevent the collision between labels.
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Description

Technical field

[0001] The invention relates to an identification code transmission method and circuit device, in particular to an identification code transmission method and circuit device in a radio frequency identification tag (Radio Frequency Identification Tag, RFID). Background technique

[0002] Radio Frequency-Identification (RFID) means that the transmitter (radio frequency identification tag) uses radio waves to transmit the identification signal, and the identification terminal receives the radio wave, and then decodes the identification code signal carried in the radio wave to achieve Device system with identification function. This type of system is most often used in such as access control, warehouse management of incoming and outgoing products, or the identification of interactive toys. The RFID Tag or transponder of the RFID system generally contains an antenna and an integrated circuit chip (IC). An identification code (Identification Code) is stored in the RFID ...

Claims

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