JPS55159180A - Announcing sound generator of watch - Google Patents

Announcing sound generator of watch

Info

Publication number
JPS55159180A
JPS55159180A JP6799779A JP6799779A JPS55159180A JP S55159180 A JPS55159180 A JP S55159180A JP 6799779 A JP6799779 A JP 6799779A JP 6799779 A JP6799779 A JP 6799779A JP S55159180 A JPS55159180 A JP S55159180A
Authority
JP
Japan
Prior art keywords
signal
circuit
sounds
announcing
sound
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
JP6799779A
Other languages
Japanese (ja)
Inventor
Katsuhiko Takebe
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.)
Rhythm Watch Co Ltd
Original Assignee
Rhythm 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 Rhythm Watch Co Ltd filed Critical Rhythm Watch Co Ltd
Priority to JP6799779A priority Critical patent/JPS55159180A/en
Publication of JPS55159180A publication Critical patent/JPS55159180A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • G04G13/023—Adjusting the duration or amplitude of signals

Abstract

PURPOSE:To add tremolo effect electronically to the alarm sound of the watch and obtain announcing sound of good quality by using the modulating signal for tremolo of smaller amplitude and lower frequency than the announcing signal. CONSTITUTION:When a clock part 30 reaches the set time, unlocking 32 closes and the respective scale frequencies of electronic melody sounds generate subsequently from an announcing sound generating circuit 34. The sine wave signal of small amplitude and low frequency from an integrating circuit 54 is superposed on the attenuation signal of a time constant circuit 42 and these signals are applied to the circuit 34. Because of this, the output of the circuit 34 becomes the signal comprising superposing the attenuation signal on each scale frequency signal of the electronic melody sound. As a result of this, the respective scale sounds of the electronic melody sounds from a speaker 46 become the attenuated sounds added with tremolo effect.
JP6799779A 1979-05-31 1979-05-31 Announcing sound generator of watch Pending JPS55159180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6799779A JPS55159180A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6799779A JPS55159180A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Publications (1)

Publication Number Publication Date
JPS55159180A true JPS55159180A (en) 1980-12-11

Family

ID=13361101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6799779A Pending JPS55159180A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Country Status (1)

Country Link
JP (1) JPS55159180A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430071A (en) * 1977-08-10 1979-03-06 Seiko Epson Corp Electronic watch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430071A (en) * 1977-08-10 1979-03-06 Seiko Epson Corp Electronic watch

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