Patents by Inventor Satoshi Soma

Satoshi Soma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • CCTV system using multiplexed signals to reduce required cables
    Patent number: 5623304
    Abstract: A cable-saving type CCTV system for transmitting a multiplexed video signal over a single coaxial cable connecting a camera site and a control site by frequency-modulating a bi-directional audio signal and producing a digital control signal and a digital alarm signal and multiplexing the resultant signals and an external synchronizing signal in a blanking period of the video signal.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: April 22, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Ota, Satoshi Soma, Hajime Matsumoto, Takayuki Kimura
  • Burglarproofing device for a car-carried acoustic apparatus
    Patent number: 4734896
    Abstract: A burglarproofing device for a car-carried acoustic apparatus prevents operation of the car-carried acoustic apparatus if the apparatus is stolen. The device allows only an owner of a car who holds a controller to render the apparatus operative. The controller is in the form of a card having keys for entering a pass number and a memory for storing a pass number thus entered. The pass number is transmitted to the car-carried acoustic apparatus when the controller is inserted into a hole formed in the car-carried acoustic apparatus, and is compared with a verification number stored in discriminating means, and only when coincidence is found, is power made available to the apparatus.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: March 29, 1988
    Assignee: Alpine Electronics, Ltd.
    Inventors: Satoshi Soma, Masaru Noguchi