CH614344GA3 - Monolithically integrated circuit for battery-powered alarm clocks - Google Patents

Monolithically integrated circuit for battery-powered alarm clocks Download PDF

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Publication number
CH614344GA3
CH614344GA3 CH222677A CH222677A CH614344GA3 CH 614344G A3 CH614344G A3 CH 614344GA3 CH 222677 A CH222677 A CH 222677A CH 222677 A CH222677 A CH 222677A CH 614344G A3 CH614344G A3 CH 614344GA3
Authority
CH
Switzerland
Prior art keywords
integrated circuit
monolithically integrated
battery
powered alarm
alarm clocks
Prior art date
Application number
CH222677A
Other versions
CH614344B (en
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
Publication of CH614344B publication Critical patent/CH614344B/en
Application filed filed Critical
Publication of CH614344GA3 publication Critical patent/CH614344GA3/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/36—Signal repeating devices
    • 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)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

In this known battery-powered alarm clock with a monolithically integrated circuit, the control signal for the setting circuit (8) which brings the frequency divider stages of the audio-frequency oscillator (6) into a defined state is derived from the audio-frequency oscillator itself. <IMAGE>
CH222677A 1976-02-27 1977-02-23 Monolithically integrated circuit for battery-powered alarm clocks CH614344GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762608025 DE2608025C2 (en) 1976-02-27 1976-02-27 Monolithic integrated circuit for battery-operated alarm clocks

Publications (2)

Publication Number Publication Date
CH614344B CH614344B (en)
CH614344GA3 true CH614344GA3 (en) 1979-11-30

Family

ID=5971044

Family Applications (1)

Application Number Title Priority Date Filing Date
CH222677A CH614344GA3 (en) 1976-02-27 1977-02-23 Monolithically integrated circuit for battery-powered alarm clocks

Country Status (6)

Country Link
JP (1) JPS52104969A (en)
CH (1) CH614344GA3 (en)
DE (1) DE2608025C2 (en)
FR (1) FR2342519A1 (en)
GB (1) GB1539712A (en)
IT (1) IT1076118B (en)

Also Published As

Publication number Publication date
IT1076118B (en) 1985-04-24
DE2608025B1 (en) 1977-06-02
FR2342519A1 (en) 1977-09-23
JPS52104969A (en) 1977-09-02
DE2608025C2 (en) 1978-01-26
GB1539712A (en) 1979-01-31
CH614344B (en)
FR2342519B3 (en) 1980-01-04

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Legal Events

Date Code Title Description
PLX Patent declared invalid from date of grant onwards