Patent ID: 7424134

Claim:
A card-type biometric identification device for identifying whether or not a to-be-identified holder beside a host system is an authorized holder, the host system stores personal data of the authorized holder and a pseudorandom-code generating program corresponding to the personal data, the card-type biometric identification device comprising: a biometric sensor for reading and outputting authorized biometric data of the authorized holder and to-be-identified biometric data of the to-be-identified holder; an operating/processing module that receives, processes and stores the pseudorandom-code generating program, the personal data and the authorized biometric data only once, and then receives and processes the to-be-identified biometric data multiple times, wherein the operating/processing module originally generates and outputs a to-be-identified code by the pseudorandom-code generating program after the to-be-identified biometric data is judged to substantially match with the authorized biometric data; a remote transceiver for outputting the personal data, which is also stored in the biometric identification device and is different from the to-be-identified code, to the host system to enable the host system to generate an authorized code according to the pseudorandom-code generating program corresponding to the personal data, wherein the personal data is outputted from the biometric identification device to the host system via the remote transceiver before the to-be-identified code is originally generated by the operating/processing module, and it is judged whether or not the to-be-identified holder is the authorized holder by comparing the authorized code to the to-be-identified code originally generated by the operating/processing module; and a rechargeable battery for providing power for the operating/processing module, the biometric sensor and the remote transceiver.