Patents by Inventor James Teh-Zen Koo

James Teh-Zen Koo 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).

  • Low power detector circuit
    Patent number: 3976895
    Abstract: A low power detector circuit consists of the basic four MOS transistors of an MOS flip-flop and includes another pair of MOS transistors as well as voltage equalization circuitry. The added pair of transistors and the cross coupling of the gates of two of the other transistors results in a detector circuit which automatically limits power dissipation at least by the time the proper output signal levels are attained.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: August 24, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: James Teh-Zen Koo
  • Semiconductor memory array
    Patent number: 3964030
    Abstract: A 1,024 bit semiconductor memory system, fabricated on a single integrated circuit chip, utilizes dynamic memory cells and low power dynamic control circuitry. An initial input control signal activates the control circuitry which internally generates all the control signals. The timing of all the internally generated control signals is automatically maintained by the control circuits.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: June 15, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: James Teh-Zen Koo