JPS55159182A - Announcing sound generator of watch - Google Patents

Announcing sound generator of watch

Info

Publication number
JPS55159182A
JPS55159182A JP6799979A JP6799979A JPS55159182A JP S55159182 A JPS55159182 A JP S55159182A JP 6799979 A JP6799979 A JP 6799979A JP 6799979 A JP6799979 A JP 6799979A JP S55159182 A JPS55159182 A JP S55159182A
Authority
JP
Japan
Prior art keywords
envelope
circuit
scale
necessary
rom46
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
JP6799979A
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 JP6799979A priority Critical patent/JPS55159182A/en
Publication of JPS55159182A publication Critical patent/JPS55159182A/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

Landscapes

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

Abstract

PURPOSE:To obtain announcing sound of good quality by controlling the operation speed of a programmable envelope circuit. CONSTITUTION:When a clock part 40 reaches the set time, unlocking 42 closes and the data of the note necessary for melody are supplied from a note ROM46 to a scale sound generating circuit 48, whereby the scale sound frequency signal necessary for melody are created. On the other hand, the clock divided in an envelope operation control circuit 72 by the output from the ROM46 and the data necessary for the envelope operation are sent to a shift register 70. The output potentials of the envelope circuit constituted by the register 70, analog switches 62-68 and resistances 82-88 are made to the envelope waveforms close to those of musical instrument sounds and are then applied to an analog switch 60. The scale sound frequency signal from the circuit 48 and the attenuation signal from the envelope circuit are superposed and the arbitrarily programmed scale sounds are generated from a speaker 58.
JP6799979A 1979-05-31 1979-05-31 Announcing sound generator of watch Pending JPS55159182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6799979A JPS55159182A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6799979A JPS55159182A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Publications (1)

Publication Number Publication Date
JPS55159182A true JPS55159182A (en) 1980-12-11

Family

ID=13361154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6799979A Pending JPS55159182A (en) 1979-05-31 1979-05-31 Announcing sound generator of watch

Country Status (1)

Country Link
JP (1) JPS55159182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128596A (en) * 1983-01-14 1984-07-24 セイコーエプソン株式会社 Envelope waveform control circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017246A (en) * 1973-06-13 1975-02-24
JPS5033842A (en) * 1973-07-25 1975-04-01
JPS51126119A (en) * 1975-04-25 1976-11-04 Nippon Gakki Seizo Kk Envelope producer
JPS5583872A (en) * 1978-12-21 1980-06-24 Citizen Watch Co Ltd Information sound generation circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017246A (en) * 1973-06-13 1975-02-24
JPS5033842A (en) * 1973-07-25 1975-04-01
JPS51126119A (en) * 1975-04-25 1976-11-04 Nippon Gakki Seizo Kk Envelope producer
JPS5583872A (en) * 1978-12-21 1980-06-24 Citizen Watch Co Ltd Information sound generation circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128596A (en) * 1983-01-14 1984-07-24 セイコーエプソン株式会社 Envelope waveform control circuit
JPH0567957B2 (en) * 1983-01-14 1993-09-27 Seiko Epson Corp

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