MULTI-FREQUENCY TRANSPONDER

摘要

The invention concerns a multi-frequency transponder for communicating at a first frequency according to a first communication protocol and at a second different frequency according to a second communication protocol. The transponder comprises a first physical memory for storing a first data of the first communication protocol; a second physical memory for storing a second data, different from the first data, of the second communication protocol; and a logic unit for accessing the first and second physical memories. The logic unit comprises a first control unit for handling communications according to the first protocol, and a second control unit for handling communications according to the second protocol. The transponder comprises a mapping memory to store a logical memory map of the first or second physical memories. The logical memory map comprises mapping information for the first or second control unit to access data items in first and second physical memories.

主权项

1. A multi-frequency transponder for communicating at a first frequency according to a first communication protocol and at a second frequency according to a second communication protocol, the second frequency being different from the first frequency, the transponder comprising:
a first physical memory with a first memory structure optimized for storing a first set of data of the first communication protocol; a second physical memory with a second memory structure optimized for storing a second set of data, different from the first set of data, of the second communication protocol; and logic circuitry configured to access the first and second physical memories, the logic circuitry comprising a first control circuit configured to handle communications according to the first protocol, and a second control circuit configured to handle communications according to the second protocol, wherein the transponder further includes a mapping memory configured to store a logical memory map of at least one of the first and second physical memories, the logical memory map comprising mapping information for the logic circuitry to access data items in both the first and second physical memories.