Patents Assigned to Bradley Time Division, Elgin National
  • Patent number: 4280209
    Abstract: An electronic timepiece having an analog time display and a digital alarm setting system for actuating an alarm at a preset time. The timepiece includes a high-frequency time base whose output is applied to a frequency converter yielding low frequency timing pulses, these being applied to a motor for driving the hour and minute hands through a gear train. The alarm setting system includes an electro-optical digital display whose electronic actuator responds to the same timing pulses to provide a digital display concurrent with the analog display, and a microprocessor associated with a data memory adapted to store the digital value of any selected time setting. The microprocessor compares the existing time expressed as digital data with the stored digital value to produce a representative output signal when the existing value is coincident with the stored value. The output signal acts to trigger an alarm generator to produce an alarm for a predetermined period.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: July 21, 1981
    Assignee: Bradley Time Division, Elgin National
    Inventor: Jac A. Mooney