Patent ID: 7006671

Claim:
A personal identification apparatus comprising: a storage device configured to store specific information pieces of a plurality of registered persons in order; an extraction device configured to extract a specific information piece of an object person to be identified from a feature of the object person; an identification device configured to identify the object person from the registered persons by comparing the specific information pieces of the registered persons with the specific information piece of the object person; and a registered information operation device configured to sort the specific information pieces of the registered persons, which is stored in said storage device, in order of increasing elapse time from a last identification of the object person or in order of decreasing frequency of identification thereof, wherein when said identification device fails identification between the object person and one of the registered persons, said extraction device extracts another specific information piece of the object person which presents at a lower-order position than the specific information piece extracted from the object person, and said identification device compares the another specific information piece with the specific information piece of each of the registered persons to verify the specific information piece.