×

Time-measurement device and method of controlling the same

  • US 6,367,967 B1
  • Filed: 12/03/1999
  • Issued: 04/09/2002
  • Est. Priority Date: 12/11/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A time-measurement device comprising:

  • power supply means for supplying electric power;

    time indicating means including a plurality of indication hand driving parts for driving a corresponding plurality of indication hands using electric power supplied by said power supply means so as to indicate time by said plurality of indication hands;

    control means for switching an operating mode for each of said plurality of indication hand driving parts in accordance with a predetermined condition between a power saving mode in which said plurality of indication hands are not driven and a normal indication mode in which said plurality of indication hands are continuously driven;

    elapsed-time storage means for storing an elapsed time when the operating mode is in the power saving mode; and

    time adjusting means for adjusting an indication of time by driving said plurality of indication hand driving parts in accordance with the time elapsed stored in said elapsed-time storage means after the operating mode is changed from the power saving mode to the normal indication mode;

    wherein said time adjusting means includes time adjusting operation control means for controlling a timing of driving said plurality of indication hand driving parts such that at least one of said plurality of indication hand driving parts is driven during a first time period and at least another one of said plurality of indication hand driving parts is driven during a second time period, and said first time period is exclusive of said second time period for at least a portion of a time adjustment period.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×