Anti-Collision Scheme for Active and Passive RFID Tag System

An arrangement of anti-collision methodology, comprising:

• a control unit operable to transmit/receive data, run algorithm, and manipulate data flow.
• a memory structure operable to store anti-collision information wherein includes program/erase and read function.
• an anti-collision enable feature, wherein:
• turns on or off anti-collision feature according to the setting in memory.
• an anti-collision timing mode feature, wherein:
• configures controllable timing-duration in memory.
• an anti-collision mark bit feature, wherein:
• record mark information in memory. a tag head feature, wherein:
• record head information in memory.
• an anti-collision bit-by-bit-search feature, wherein:
• record the related information in the head of memory.
• a selectable anti-collision mode feature, wherein:
• configures selected anti-collision mode in memory. The mode may present only one anti-collision method. It also presents the combinations with many kinds of anti-collision method.