FR2293004A1 - Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal - Google Patents

Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal

Info

Publication number
FR2293004A1
FR2293004A1 FR7438720A FR7438720A FR2293004A1 FR 2293004 A1 FR2293004 A1 FR 2293004A1 FR 7438720 A FR7438720 A FR 7438720A FR 7438720 A FR7438720 A FR 7438720A FR 2293004 A1 FR2293004 A1 FR 2293004A1
Authority
FR
France
Prior art keywords
balance
signal
oscillations
oscillating
amplitude
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
FR7438720A
Other languages
French (fr)
Other versions
FR2293004B1 (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.)
LIP HORLOGERIE
Original Assignee
LIP HORLOGERIE
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 LIP HORLOGERIE filed Critical LIP HORLOGERIE
Priority to FR7438720A priority Critical patent/FR2293004A1/en
Publication of FR2293004A1 publication Critical patent/FR2293004A1/en
Application granted granted Critical
Publication of FR2293004B1 publication Critical patent/FR2293004B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

The electronic synchronising signal is used to synchronise an oscillating timepiece balance with a given frequency. The actual frequency of the oscillating balance is measured as a function of the amplitude of the oscillations, the signal representing the balance oscillations combined with a recurrent wave train at the given frequency. The amplitude of the composite signal obtd, is compared with a threshold value, so as to provide a control signal, when the composite signal exceeds the threshold value. The oscillations of the timepiece balance are corrected by using the control signal to adjust the amplitude of the oscillations.
FR7438720A 1974-11-26 1974-11-26 Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal Granted FR2293004A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438720A FR2293004A1 (en) 1974-11-26 1974-11-26 Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438720A FR2293004A1 (en) 1974-11-26 1974-11-26 Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal

Publications (2)

Publication Number Publication Date
FR2293004A1 true FR2293004A1 (en) 1976-06-25
FR2293004B1 FR2293004B1 (en) 1979-09-21

Family

ID=9145253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438720A Granted FR2293004A1 (en) 1974-11-26 1974-11-26 Frequency synchronising system for oscillating timepiece balance - by combining signal train with balance oscillation signal

Country Status (1)

Country Link
FR (1) FR2293004A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039128A1 (en) * 1969-03-14 1971-01-15 Timex Corp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039128A1 (en) * 1969-03-14 1971-01-15 Timex Corp

Also Published As

Publication number Publication date
FR2293004B1 (en) 1979-09-21

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Legal Events

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ST Notification of lapse