JPS52136657A - Crystal clock - Google Patents

Crystal clock

Info

Publication number
JPS52136657A
JPS52136657A JP5370276A JP5370276A JPS52136657A JP S52136657 A JPS52136657 A JP S52136657A JP 5370276 A JP5370276 A JP 5370276A JP 5370276 A JP5370276 A JP 5370276A JP S52136657 A JPS52136657 A JP S52136657A
Authority
JP
Japan
Prior art keywords
crystal clock
enclosing
produced
electronic circuit
etching process
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
JP5370276A
Other languages
Japanese (ja)
Inventor
Makoto Shibata
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP5370276A priority Critical patent/JPS52136657A/en
Publication of JPS52136657A publication Critical patent/JPS52136657A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To obtain miniaturized high-precision crystal clock by enclosing the vertical oscillation mode quartz oscillator, which has a high intrinsic frequency and is produced by the photo etching process, in the airtight container which also contains the electronic circuit having a logical speed adjusting means.
JP5370276A 1976-05-11 1976-05-11 Crystal clock Pending JPS52136657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5370276A JPS52136657A (en) 1976-05-11 1976-05-11 Crystal clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5370276A JPS52136657A (en) 1976-05-11 1976-05-11 Crystal clock

Publications (1)

Publication Number Publication Date
JPS52136657A true JPS52136657A (en) 1977-11-15

Family

ID=12950145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5370276A Pending JPS52136657A (en) 1976-05-11 1976-05-11 Crystal clock

Country Status (1)

Country Link
JP (1) JPS52136657A (en)

Similar Documents

Publication Publication Date Title
JPS51124355A (en) Crystal oscillation circuit
JPS5320845A (en) Quartz crystal watch
JPS532097A (en) Quartz crystal oscillator
JPS52136657A (en) Crystal clock
JPS51130149A (en) Oscillation circuit
JPS5312657A (en) Portable electronic watch
JPS5412692A (en) Tuning fork type crystal oscillator for watch use
JPS5247391A (en) Quartz crystal oscillator for watch use
JPS5352466A (en) Electronic watch
JPS5328465A (en) Electronic watch
JPS5333667A (en) Time regulating element for electronic watches
JPS5336193A (en) Piezoelectric vibrator
JPS5291681A (en) Vibrator crystal plate and manufacture of it
JPS5275290A (en) Tuning fork type crystal resonator
JPS5345190A (en) Thickness slide crystal vibrator
JPS5320891A (en) Piezoelectric oscillator
JPS51149755A (en) Electronic clock
JPS5357871A (en) Electronic watch
JPS51147294A (en) Tuning fork type crystal oscillator
JPS55107982A (en) Electronic watch
JPS5333041A (en) Frequency step-multiplication circuit
JPS51120192A (en) Quartz oscillator
JPS52123663A (en) Electronic watch
JPS5320886A (en) Short-side piezoelectric oscillator
JPS5282474A (en) Electronic metronom