JPH01126588U

JPH01126588U -

Info

Publication number: JPH01126588U
Application number: JP2281588U
Authority: JP
Priority date: 1988-02-22
Filing date: 1988-02-22
Publication date: 1989-08-29

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例に係る時計の回路図
。第２図ａ，ｂは第１図の回路の動作を示すタイ
ムチヤート。第３図は、本考案の他の実施例に係
る時計の回路図。第４図は、第３図の回路の動作
を示すタイムチヤート。２……基準信号発生器、８……秒カウンタ、２
６……先行パルス出力回路、４４……定時刻検出
回路、４６……先行時刻検出回路、６０……切換
回路。 FIG. 1 is a circuit diagram of a timepiece according to an embodiment of the present invention. 2a and 2b are time charts showing the operation of the circuit of FIG. 1. FIG. 3 is a circuit diagram of a timepiece according to another embodiment of the present invention. FIG. 4 is a time chart showing the operation of the circuit of FIG. 3. 2...Reference signal generator, 8...Second counter, 2
6... Advance pulse output circuit, 44... Fixed time detection circuit, 46... Advance time detection circuit, 60... Switching circuit.

Claims

[Scope of Claim for Utility Model Registration] (1) A reference signal generator that generates a reference signal for timekeeping, a second counter that counts the second digits of time using this reference signal, and a time counted by the second counter. A pulse output circuit that outputs a pulse signal when a fixed time has arrived, and a motor that is driven in response to the pulse signal from this pulse output circuit.
In a large device clock having a wheel train and a pointer that rotate in response to the drive of the motor, the pulse output circuit receives the count output of the second counter and generates a carry signal from the second counter for a certain period of time. A large device clock characterized by comprising a preceding pulse output circuit that outputs a pulse signal in advance. (2) A reference signal generator that generates a reference signal for timekeeping, a second counter that uses this reference signal to count the second digits of the time, and a pulse signal that is generated when the time counted by the second counter reaches a fixed time. a pulse output circuit that outputs a pulse output circuit; a motor that is driven in response to a pulse signal from the pulse output circuit;
A wheel train and a pointer rotate in response to the drive of the motor, a minute counter that counts the minutes of the time based on a carry signal from the second counter, and a minute counter that indicates when the time counted by the minute counter has reached the set time. In a large device timepiece having a fixed time detection circuit for detecting a fixed time, and a time signal device for starting a time signal operation in response to generation of a detection signal from the fixed time detection circuit, It consists of an advance pulse output circuit that receives a count output and outputs a pulse signal a certain period of time before the generation of a carry signal from the second counter, and further generates a detection signal from the fixed time detection circuit based on the count output of the minute counter. a preceding time detection circuit that detects immediately before the time; and a carry pulse from a second counter that is normally supplied to the motor, and a preceding pulse from the preceding pulse output circuit that is supplied to the motor when a detection signal is generated from the preceding time detection circuit; A large device clock characterized by having a switching circuit for supplying.