JPS55159179A - Announcing sound generator of watch - Google Patents

Announcing sound generator of watch

Info

Publication number
JPS55159179A
JPS55159179A JP6799679A JP6799679A JPS55159179A JP S55159179 A JPS55159179 A JP S55159179A JP 6799679 A JP6799679 A JP 6799679A JP 6799679 A JP6799679 A JP 6799679A JP S55159179 A JPS55159179 A JP S55159179A
Authority
JP
Japan
Prior art keywords
divider
output
frequency signal
announcing sound
oscillator
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
JP6799679A
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 JP6799679A priority Critical patent/JPS55159179A/en
Publication of JPS55159179A publication Critical patent/JPS55159179A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE:To add vibrato effect electronically to announcing sound and obtain announcing sound of good quality by periodically changing the frequency signal for announcing sound fractionally. CONSTITUTION:When the time of a clock part 2 reaches the just time, unlocking 4 closes and the note data from a note ROM8 are applied to a P divider 10. The P divider 10 divides the output of an oscillator 12 down to the scale frequencies necessary for melody. On the other hand, the output of the oscillator 12 is divided at 14 to the low frequency signal for vibrato, and this causes the dividing ratio of the divider 10 to fluctuate along with its change. Because of this, the frequencies of the respective scales of the melody sounds or hour striking sounds obtained in the output of the divider 10 change periodically. The attenuation signal from an envelope generating circuit 18 and the scale frequency signal from the divider 10 are superposed by way of an analogue switch 16 and are applied to a speaker 22.
JP6799679A 1979-05-31 1979-05-31 Announcing sound generator of watch Pending JPS55159179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6799679A JPS55159179A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6799679A JPS55159179A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Publications (1)

Publication Number Publication Date
JPS55159179A true JPS55159179A (en) 1980-12-11

Family

ID=13361074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6799679A Pending JPS55159179A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Country Status (1)

Country Link
JP (1) JPS55159179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62165693A (en) * 1986-01-17 1987-07-22 松下電器産業株式会社 Alarm for equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386261A (en) * 1976-12-21 1978-07-29 Citizen Watch Co Ltd Acoustic signal producing circuit for use in electronic timepiece

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386261A (en) * 1976-12-21 1978-07-29 Citizen Watch Co Ltd Acoustic signal producing circuit for use in electronic timepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62165693A (en) * 1986-01-17 1987-07-22 松下電器産業株式会社 Alarm for equipment

Similar Documents

Publication Publication Date Title
CH621460B (en) ELECTRONIC WATCHMAKING PART WITH ELECTROACOUSTIC TRANSDUCER.
JPS55159179A (en) Announcing sound generator of watch
JPS5389415A (en) Electronic musical instrument
JPS54143265A (en) Watch having alarm sound generating function
JPS54143621A (en) Electronic musical instrument
JPS55106387A (en) Digital electronic wrist watch with acoustic function
CH635479GA3 (en)
JPS55159181A (en) Announcing sound generator of watch
JPS5386261A (en) Acoustic signal producing circuit for use in electronic timepiece
JPS5344061A (en) Electronic watch with alarm
JPS5443778A (en) Drive of electronic wrist watch with alarm
JPS5614982A (en) Electronic sounding device for clock
JPS53149312A (en) Electronic musical instrument
JPS5686381A (en) Electronic watch
JPS5425773A (en) Integrated circuit for electronic watches
JPS5458062A (en) Electronic time striking circuit
JPS5346771A (en) Electronic alarm watch
JPS55159180A (en) Announcing sound generator of watch
JPS5690285A (en) Electronic clock
JPS5689083A (en) Electronic watch with melody function
JPS54116974A (en) Electronic watch
JPS51120756A (en) Clock equipped with sound generater
JPS5430070A (en) Watch
JPS5619481A (en) Timepiece unit
JPS57144483A (en) Operating clock generating circuit of timepiece device