JPS5582992A - Time announcing watch - Google Patents

Time announcing watch

Info

Publication number
JPS5582992A
JPS5582992A JP15830878A JP15830878A JPS5582992A JP S5582992 A JPS5582992 A JP S5582992A JP 15830878 A JP15830878 A JP 15830878A JP 15830878 A JP15830878 A JP 15830878A JP S5582992 A JPS5582992 A JP S5582992A
Authority
JP
Japan
Prior art keywords
pulses
capacitor
watch
bell
waveform similar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15830878A
Other languages
Japanese (ja)
Inventor
Shinichi Shirasu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP15830878A priority Critical patent/JPS5582992A/en
Publication of JPS5582992A publication Critical patent/JPS5582992A/en
Pending legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To electronically generate an acoustic waveform similar to the tone color of a bell in hearing with a limited high harmonic wave contained by synthesizing two or more pulses into a specified drive waveform.
CONSTITUTION: While trigger pulses are applied to the terminal 22, a transistor 24 conducts to charge a capacitor 24. Pulses 11 and 12 are applied to transistors 25 and 26 with a duty of 1/3 and 2/3 by dividing the input signal at a rate of 1/6 with a Johnson counter composed of FFs 33W35 and gates 36W37. Then, a voltage developing at the terminals 27 and 28 is applied with resistances 29 and 29'. Thus, a waveform similar to the bell sound develops at the output terminal 30 as attenuated by the discharge of a capacitor 20.
COPYRIGHT: (C)1980,JPO&Japio
JP15830878A 1978-12-19 1978-12-19 Time announcing watch Pending JPS5582992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15830878A JPS5582992A (en) 1978-12-19 1978-12-19 Time announcing watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15830878A JPS5582992A (en) 1978-12-19 1978-12-19 Time announcing watch

Publications (1)

Publication Number Publication Date
JPS5582992A true JPS5582992A (en) 1980-06-23

Family

ID=15668784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15830878A Pending JPS5582992A (en) 1978-12-19 1978-12-19 Time announcing watch

Country Status (1)

Country Link
JP (1) JPS5582992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146097A (en) * 1983-02-09 1984-08-21 リズム時計工業株式会社 Electronic tone generation circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146097A (en) * 1983-02-09 1984-08-21 リズム時計工業株式会社 Electronic tone generation circuit

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