Patents Examined by Le Dinh
  • Patent number: 5418486
    Abstract: A noise-suppression logic system suppresses a noise signal having a time duration which is less than a predetermined time. A delay circuit has a delay which is equal to the predetermined time. A logic combining circuit is coupled to the system input terminal and to the output terminal of the delay circuit. A R-S latch circuit, having a RESET input terminal, a SET input terminal, and an OUTPUT terminal provides a delayed output signal corresponding to an input signal which has a time duration greater than the predetermined time. A set circuit has a first input terminal coupled to the system input terminal, a second input terminal coupled to the output terminal of the delay circuit, and an output terminal coupled to the SET input terminal of the R-S flip-flop circuit.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: May 23, 1995
    Assignee: VLSI Technology, Inc.
    Inventor: John M. Callahan