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FR2264317A1 - Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm - Google Patents

Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm

Info

Publication number
FR2264317A1
FR2264317A1 FR7408756A FR7408756A FR2264317A1 FR 2264317 A1 FR2264317 A1 FR 2264317A1 FR 7408756 A FR7408756 A FR 7408756A FR 7408756 A FR7408756 A FR 7408756A FR 2264317 A1 FR2264317 A1 FR 2264317A1
Authority
FR
France
Prior art keywords
oscillator circuit
alarm
electric
circuit controlling
clock
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.)
Granted
Application number
FR7408756A
Other languages
French (fr)
Other versions
FR2264317B1 (en
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.)
Jaz SA
Original Assignee
Jaz SA
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 Jaz SA filed Critical Jaz SA
Priority to FR7408756A priority Critical patent/FR2264317A1/en
Publication of FR2264317A1 publication Critical patent/FR2264317A1/en
Application granted granted Critical
Publication of FR2264317B1 publication Critical patent/FR2264317B1/fr
Granted legal-status Critical Current

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
    • 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
    • G04C21/28—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to put into action electro-acoustic means, e.g. awakening by music

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The electric alarm clock has two supply batteries (P1, P2) connected in series across the oscillator circuit, one of the batteries (P1) used to power the electric clock mechanism and the other supplying the coil (3) of the acoustic alarm (A), which is in the form of a miniature loudspeaker. The oscillator circuit has a capacitor (C1) and a resistor (R1) connected in series across the two batteries, via a first switch (I1) operated via the clock movement, and a second switch (I2) operated by a manual push button. The capacitor (C1) is connected via a resistor (R2) to one of two transistors (TR1, TR2) the other transistor (TR2) connected to the loudspeaker (3).
FR7408756A 1974-03-14 1974-03-14 Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm Granted FR2264317A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7408756A FR2264317A1 (en) 1974-03-14 1974-03-14 Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7408756A FR2264317A1 (en) 1974-03-14 1974-03-14 Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm

Publications (2)

Publication Number Publication Date
FR2264317A1 true FR2264317A1 (en) 1975-10-10
FR2264317B1 FR2264317B1 (en) 1977-03-04

Family

ID=9136339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7408756A Granted FR2264317A1 (en) 1974-03-14 1974-03-14 Electric alarm clock - has electronic oscillator circuit controlling acoustic alarm

Country Status (1)

Country Link
FR (1) FR2264317A1 (en)

Also Published As

Publication number Publication date
FR2264317B1 (en) 1977-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse