Electronic chronometer

A timepiece and electronic technology, applied to electronic timers, indicating time, time signals, etc., can solve the problems of energy consumption, putting it in a drawer for a few days without looking at it, etc.

Inactive Publication Date: 2002-12-11
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, there is another way of using a timepiece, where the instant meter is usually kept in a drawer and used only when needed; in this case, the timepiece may be left in the drawer for days without looking at it
[0007] Even when the timepiece is left alone, since the hands are still running in the timepiece, this presents a problem that energy is wasted in vain

Method used

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Examples

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Embodiment Construction

[0028] A detailed description of embodiments of the present invention will be given below with reference to the accompanying drawings.

[0029] figure 1 is a block diagram of an electronic timepiece according to an embodiment of the present invention, and is also a block diagram of an electronic timepiece commonly used in each embodiment mentioned below.

[0030] exist figure 1 Among them, the oscillation circuit 10 generates a clock signal of a predetermined frequency (for example, 32768 Hz), and outputs the clock signal to the division circuit 11. The division circuit 11 generates timepiece signals (for example, a 1 Hz second signal for driving the second hand 16 to rotate, a 1 / 5 Hz minute signal for driving the hour / minute hand 19 to rotate) by dividing the frequency of the clock signal, and a clock signal for fast progress. A 32 Hz rapid feed signal is given to the second hand 16 and the hour / minute hand 19 , and these signals are output to the control circuit 12 .

[0...

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PUM

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Abstract

Reduces energy consumption by running hands only when needed. By pressing down the mode changeover switch, the second hand can be selectively moved to the position of the pointer running start time setting mode (wake-up), the position of the pointer running stop time setting mode (sleep) and the position of the alarm time setting mode (alarm) . When the second hand is placed in each setting mode position, the hour/minute hand is set to the required time by pressing the time setting switch, thereby setting the pointer operation stop time, pointer operation start time and alarm time. When the pointer operation stop time is reached, the operation of the pointer stops, and when the pointer operation start time is reached, the time pointer quickly advances to the normal time, and then the normal time display is performed. In the case where the operation of the pointer is stopped, within a predetermined period of time before the alarm time is reached, the pointer operates in a manner similar to the above, returning to a normal operating state, and thereafter, an alarm is generated when the alarm time is reached.

Description

technical field [0001] The present invention relates to an electronic timepiece that can drive a time hand to rotate based on the rotation of a motor. Background technique [0002] Traditionally, electronic timepieces are used to display the time, which is realized by the rotation of time hands such as the hour hand driven by a motor. The electric motor is powered by a battery, so the less energy the motor consumes, the better. [0003] Conventionally, an electronic timepiece using a primary battery is designed to operate the electronic timepiece with a battery having a capacity to satisfy a predetermined service life based on current, and therefore, does not provide a power saving function to reduce power consumption. [0004] Meanwhile, in the electronic timepiece described in Japanese Laid-Open Patent Publication No. 304555 / 1997 or Japanese Laid-Open Patent Publication No. 319143 / 1998, according to an energy generating timepiece using a storage battery charged by an ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04C3/14G04C9/08G04G13/02G04G15/00G04G19/12
CPCG04G13/02G04G19/12
Inventor 小笠原健治
Owner SEIKO INSTR INC
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