JPS6248240B2 - - Google Patents

Info

Publication number
JPS6248240B2
JPS6248240B2 JP54013938A JP1393879A JPS6248240B2 JP S6248240 B2 JPS6248240 B2 JP S6248240B2 JP 54013938 A JP54013938 A JP 54013938A JP 1393879 A JP1393879 A JP 1393879A JP S6248240 B2 JPS6248240 B2 JP S6248240B2
Authority
JP
Japan
Prior art keywords
circuit
volume
sound
transistor
piezoelectric element
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.)
Expired
Application number
JP54013938A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55106381A (en
Inventor
Naoki Takahashi
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP1393879A priority Critical patent/JPS55106381A/ja
Publication of JPS55106381A publication Critical patent/JPS55106381A/ja
Publication of JPS6248240B2 publication Critical patent/JPS6248240B2/ja
Granted 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)
  • Electromechanical Clocks (AREA)
JP1393879A 1979-02-09 1979-02-09 Sound volume control system for alarm device Granted JPS55106381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1393879A JPS55106381A (en) 1979-02-09 1979-02-09 Sound volume control system for alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1393879A JPS55106381A (en) 1979-02-09 1979-02-09 Sound volume control system for alarm device

Publications (2)

Publication Number Publication Date
JPS55106381A JPS55106381A (en) 1980-08-15
JPS6248240B2 true JPS6248240B2 (forum.php) 1987-10-13

Family

ID=11847135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1393879A Granted JPS55106381A (en) 1979-02-09 1979-02-09 Sound volume control system for alarm device

Country Status (1)

Country Link
JP (1) JPS55106381A (forum.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5793276A (en) * 1980-12-02 1982-06-10 Toshiba Corp Electronic clock

Also Published As

Publication number Publication date
JPS55106381A (en) 1980-08-15

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