公开(公告)号：US20190137945A1

公开(公告)日：2019-05-09

申请号：US16180439

申请日：2018-11-05

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Jyunichi HIROKAWA ,  Tatsuyoshi OMURA

IPC: G04G9/00 ,  G04G7/00 ,  G09G3/36

Abstract: In the case where a ticking timing of a clock unit changes, a CPU of an electronic timepiece outputs a synchronization request signal to a CPU of a display module at the next ticking timing after the change so as to request resynchronization. Each time a timer circuit counts a prescribed number of pulses in a clock signal generated by a clock generation circuit on the basis of the ticking timing, the CPU of the display module instructs a liquid crystal driver circuit to invert the polarity of an AC voltage to be applied to a liquid crystal panel. Moreover, upon receiving the synchronization request signal from the CPU of the electronic timepiece, the CPU of the display module sets the timer circuit to start a new count of the clock.

公开(公告)号：US20170249825A1

公开(公告)日：2017-08-31

申请号：US15391780

申请日：2016-12-27

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Takeshi MIYAKE ,  Tatsuyoshi OMURA

IPC: G08B21/08 ,  G08B29/18 ,  G08B7/06

CPC classification number: G08B21/088 ,  B63C11/02 ,  B63C2011/021 ,  G08B7/06 ,  G08B29/185

Abstract: A warning notification device includes a sensor, a notification unit, and a processor. The processor is configured to calculate a water depth from an output of the sensor every predetermined time and to calculate a surfacing amount from a change in the calculated water depth every predetermined time. When a long-term surfacing speed condition, which is to be determined on the basis of the surfacing amounts of a first number, is satisfied or when a short-term surfacing speed condition, which is to be determined on the basis of the recent surfacing amounts of a second number smaller than the first number, is satisfied, the processor enables the notification unit to issue a warning of a surfacing operation.