Stopwatch with target time function
AssigneeCasio Computer Co., Ltd.
InventorsTatsuo Ohira, Naoyuki Sakazaki
Life of this patent
Estimating the term…
Abstract
In a stopwatch of this invention, when a lap switch is operated after time measurement is started, a lap time from the immediately preceding lap switch operation to the current lap switch operation is stored and compared with a measurement time after the current lap switch operation. Since an alarm tone is generated if the measurement time after the current lap switch operation coincides with the stored lap time, the immediately preceding lap time can be used as a target time of the time measurement. The stopwatch can be conveniently used when a running speed is increased or decreased in each lap in a track race or the like.
Claims9
A stopwatch comprising:
- operation switching means for generating a start command when operated;
- time measuring means for starting a measuring operation to measure time upon receipt of the start command generated by said operation switching means, and for generating all measurement time information based on time which has been measured;
- measurement time information storing means, having a plurality of time information storage areas, for sequentially storing the measurement time information based on time which has been measured by said time measuring means at a time when said operation switching means is operated;
- comparing means for continuously performing a comparing operation to compare current measurement time information based on a time which has been measured at present by said time measuring means with a last measurement time information which was stored in said measurement time information storing means at a time when said operation switching means was last operated;
- and
- alarming means for providing an alarm when said comparing means determines that the current measurement time information coincides with the last measurement time information.
Dependencies are inferred from the claim text.