Seiko Epson Corporation

Casio Computer Co., Ltd.

Hideyuki Arai

Katsuaki Karasawa

Takashi Kawaguchi

Makoto Okeya

A time measurement device includes: a higher-digit indication hand that is configured to indicate a higher digit of a measured time; a lower-digit indication hand that is configured to reciprocate and indicate a lower digit of the measured time on a forward route and on a return route; a first drive unit that is configured to drive the higher-digit indication hand; a second drive unit that is configured to drive the lower-digit indication hand; a time counter that is configured to measure a time; a first drive controller that is configured to control the first drive unit to drive the higher-digit indication hand based on the measured time measured by the time counter; and a second drive controller that is configured to control the second drive unit to drive the lower-digit indication hand based on the measured time measured by the time counter, the second drive controller reciprocating the lower-digit indication hand at a predetermined period, and the first drive controller moving the higher-digit indication hand at a time interval equal to or less than a half of the predetermined period.

Time measurement device

An analog electronic timepiece including: a second hand; a driver configured to drive the second hand; a current time display processor configured to control the driver to move the second hand at a first time interval such that the second hand indicates a second of a current time; and a measured time display processor configured to control the driver to move the second hand at a second time interval different from the first time interval such that the second hand indicates a second of a measured time.

Analog electronic timepiece

An alarm clock includes a time indicator, a first alarm for sounding a first alarm at a preset time, a manual rotary bezel provided rotatable relative to the time indicator outside same for setting a time elapsing from the alarm time, and a second alarm for sounding a second alarm when the time set by the rotary bezel has elapsed since the preset time. After the first alarm is sounded at the alarm time, and after the time set by the rotary bezel has elapsed, the second alarm is sounded. The time interval after which the second alarm is sounded is set by a simple operation and two-staged sounding ensures proper awakening of the sleeper.

Growing community of inventors

Hamura, Japan

Hideyuki Arai