Schlage Electronics, Inc.

Indala Corporation

Recognition Systems, Inc.

David P Sidlauskas

Charles A Walton

Theodore D Geiszler

Ronald W Mongeon

Robert D Kohler

A remotely powered portable member having circuitry for storing and transmitting coded information. A first coupling device is provided for receiving a signal transmitted via one of a magnetic field and an electric field. A power circuit is connected to the first coupling device for deriving operating power from the received signal for use by the circuitry. A second coupling device is connected to the circuitry for transmitting coded information stored by the circuitry via the other one of the magnetic field and electric field.

Identification system

An identification system is disclosed which determines whether the claimed identity of an individual is in fact the true identity. A three dimensional image of a hand is obtained using a digitizing camera and a pair of orthogonal reflecting surfaces. The image is then compared with a previously recorded hand image for the claimed identity. If the images match, within a selectable tolerance, the person is accepted as the correct individual. If they do not match, the person is rejected. Signalling and/or control apparatus responds to the results of the comparison.

3D hand profile identification apparatus

An electronic recognition and identification system for recognizing and identifying any one of a family of electrically-coded external objects. The system comprises internal electronics including a pulse widening circuit which enables the system to be responsive to each of the codes of the family of external objects.

Electronic recognition and identification system for identifying a

An electronic recognition and identification system for identifying one of a plurality of electrically coded keys, each having at least one tuned electrical circuit which is resonant at at least one of a plurality of predetermined frequencies. The system comprises a sweep oscillator for generating an alternating current signal. The alternating current signal has a frequency which varies with time over a range of frequencies including the plurality of predetermined frequencies. A condition pulse generating network is connected to the oscillator and produces a condition pulse when one of the keys is proximate thereto and when the frequency of the alternating current signal passes through its predetermined frequency. A plurality of reference pulse generating circuits are selectively connected to the oscillator by a sequential multiplexer. Each reference pulse generating circuit is responsive to the alternating current signal and is operative to produce a reference pulse when the frequency of the alternating current signal passes through one of the plurality of predetermined frequencies. A control circuit is responsive to the condition pulses and the reference pulses and is operative to produce a control signal when there is time coincidence between those pulses.

Growing community of inventors

San Jose, CA, United States of America

David P Sidlauskas