Abstract: The invention provides a highly-reliable face collation apparatus and biometrics data collation apparatus in both of which when a person is to be identified, even at the time of a collation in which characteristic data on the person approximates to characteristic data on one of the other persons, the characteristic data are comprehensively collated by combination, whereby the person and the other person can be clearly discriminated from each other to reduce collation errors.

Abstract: It is intended to provide a gate system which prevents an abuse of a storage medium such as a card carried by a user to pass through a gate and reduces the time to require for determining whether to permit passing so as not to cause jams when passing through the gate.

Abstract: It is intended to provide a gate system which prevents an abuse of a storage medium such as a card carried by a user to pass through a gate and reduces the time to require for determining whether to permit passing so as not to cause jams when passing through the gate.

Abstract: The invention provides a highly-reliable face collation apparatus and biometrics data collation apparatus in both of which when a person is to be identified, even at the time of a collation in which characteristic data on the person approximates to characteristic data on one of the other persons, the characteristic data are comprehensively collated by combination, whereby the person and the other person can be clearly discriminated from each other to reduce collation errors.

Abstract: A dual light source optical recording and playback system which comprises a first light source which is a semiconductor laser for irradiating tracks of a recording medium with recording spot light to record pits as information units, a second light source for irradiating the tracts with playback spot light, detection means for detecting the output of the semiconductor laser which changes in response to return light available as the recording spot light is reflected on the track of the recording medium and returned to the semiconductor laser, and a timing signal generator for generating a timing signal for the recording of the next pit on the track in response to a detection output from the detection means which corresponds to the return light due to reflection by the recorded pit.

Abstract: The present invention relates to an optical card reader that detects any relative inclination of the card by measuring the relative motion of the optical tracks themselves. The optical card reader comprises a card holding portion, an optical head having the ability follow data tracks on the optical card, and a detector that measures the angle of inclination of the optical card from a tracking signal generated from a one-dimensional relative movement of the card holder and the optical card.