Videodetics Corporation

Columbia Pictures Industries, Inc.

David E Lewis

Thomas F Gossard

Victor Blum

A method and apparatus for controlling a tape player/recorder for retrieving and playing prerecorded selections recorded thereon at spaced locations. According to the method and apparatus, the tape is played, a number indicative of tape position is generated, the tape position numbers indicative of the start and stop points for each selection recorded on the tape are stored in a memory, and the stored start and stop numbers for each selection are subsequently recorded on the tape whereby the tape may be removed from the player/recorder and subsequently reinserted into the same or another player/recorder. When a tape is inserted into a player/recorder, the start and stop numbers are read from the tape and stored in the memory whereupon the stored numbers may be utilized for locating selections on the tape to be played.

Method and apparatus for controlling a tape player/recorder for

Automobile actuated wall proximity indicator

A remote ECG monitoring and telemetry system for use in a hospital equipped with a master antenna television cable system comprising a portable patient sensor/transmitter unit for deriving ECG information and for transmitting a first frequency signal modulated with the ECG information; a receiver/transmitter unit positioned in the patient's room for receiving the first modulated signal and for coupling directly to the master antenna television cable a second frequency signal modulated with the ECG information; a converter/amplifier unit coupled to the master antenna television cable adjacent the head end thereof for receiving the second modulated signal and for coupling back into the master antenna television cable a high power, third frequency signal modulated with the ECG information; and a receiver/demodulator unit coupled to the master antenna television cable at a central monitoring station for receiving and demodulating the third modulated signal to derive the ECG information.

Remote ECG monitoring system

An individually addressable converter-tuner station for use in a cable television distribution system for selectively enabling the reception by conversion of at least one secure channel signal on a conventional television receiver. The converter-tuner utilizes a crystal-controlled local oscillator to provide the frequencies for converting the received secure channel carriers to a carrier receivable by the receiver. Initial filtration of the incoming secure channel carriers is accomplished in part by means of a tunable pass band filter, controlled by a variable capacitance diodes. A double balanced mixer is employed to cancel unwanted signals remaining in the filtered input to the mixer. The secure channel carriers are in the television midband range, and the local oscillator frequencies are below that range. Extensive use is made of diode switching of the crystal controlled oscillator and other components.

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Orange, CA, United States of America

David E Lewis