FR2242808B1 - - Google Patents

Info

Publication number
FR2242808B1
FR2242808B1 FR7429669A FR7429669A FR2242808B1 FR 2242808 B1 FR2242808 B1 FR 2242808B1 FR 7429669 A FR7429669 A FR 7429669A FR 7429669 A FR7429669 A FR 7429669A FR 2242808 B1 FR2242808 B1 FR 2242808B1
Authority
FR
France
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
FR7429669A
Other versions
FR2242808A1 (fr
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2242808A1 publication Critical patent/FR2242808A1/fr
Application granted granted Critical
Publication of FR2242808B1 publication Critical patent/FR2242808B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
    • G04F5/063—Constructional details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • H03K3/0307—Stabilisation of output, e.g. using crystal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR7429669A 1973-08-31 1974-08-30 Expired FR2242808B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973102221U JPS5048555U (fr) 1973-08-31 1973-08-31

Publications (2)

Publication Number Publication Date
FR2242808A1 FR2242808A1 (fr) 1975-03-28
FR2242808B1 true FR2242808B1 (fr) 1976-10-22

Family

ID=14321598

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7429669A Expired FR2242808B1 (fr) 1973-08-31 1974-08-30

Country Status (5)

Country Link
US (1) US3973148A (fr)
JP (1) JPS5048555U (fr)
CH (2) CH597640A (fr)
DE (1) DE2438559A1 (fr)
FR (1) FR2242808B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404298A (en) * 1966-08-19 1968-10-01 Kenton Engineering Corp Thermally sensitive compensating device
GB1194949A (en) * 1968-01-31 1970-06-17 Citizen Watch Co Ltd Method of Temperature Compensating Oscillation Circuit for Timepiece and Device Therefor
US3791133A (en) * 1972-06-22 1974-02-12 Citizen Watch Co Ltd Crystal oscillator type small timepiece
US3803828A (en) * 1972-10-12 1974-04-16 Timex Corp Resistor trim for quartz oscillator
US3842585A (en) * 1973-05-22 1974-10-22 Benrus Corp Watch

Also Published As

Publication number Publication date
JPS5048555U (fr) 1975-05-13
CH597640A (fr) 1978-04-14
US3973148A (en) 1976-08-03
DE2438559A1 (de) 1975-03-13
FR2242808A1 (fr) 1975-03-28
CH1191974A4 (fr) 1977-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse