Patents Assigned to Toyo Jihoki Manufacturing Co., Ltd.
  • Digital time signalling device
    Patent number: 4131855
    Abstract: A digital time signalling device which includes an oscillator and frequency divider producing clock pulses at a given frequency, a counter for counting clock pulses to produce minute pulses, a counter for counting minute pulses to produce hour pulses, an hour counter for counting hours, a time setting unit and a coincidence circuit for comparing the outputs of the hour and minute counters with the output of the time setting unit to produce a coincidence signal activating a utilization device.
    Type: Grant
    Filed: August 3, 1977
    Date of Patent: December 26, 1978
    Assignee: Toyo Jihoki Manufacturing Co., Ltd.
    Inventor: Hiroshi Hamagawa