EP0015873A1 - Oscillateur avec un résonateur basse fréquence à quartz - Google Patents

Oscillateur avec un résonateur basse fréquence à quartz Download PDF

Info

Publication number
EP0015873A1
EP0015873A1 EP80810066A EP80810066A EP0015873A1 EP 0015873 A1 EP0015873 A1 EP 0015873A1 EP 80810066 A EP80810066 A EP 80810066A EP 80810066 A EP80810066 A EP 80810066A EP 0015873 A1 EP0015873 A1 EP 0015873A1
Authority
EP
European Patent Office
Prior art keywords
frequency
quartz
resonator
oscillator
low
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
EP80810066A
Other languages
German (de)
English (en)
Other versions
EP0015873B1 (fr
EP0015873B2 (fr
Inventor
Alphonse Zumsteg
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.)
SSIH Management Services SA
Original Assignee
SSIH Management Services SA
Societe Suisse pour lIindustrie Horlogere Management Services 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 SSIH Management Services SA, Societe Suisse pour lIindustrie Horlogere Management Services SA filed Critical SSIH Management Services SA
Publication of EP0015873A1 publication Critical patent/EP0015873A1/fr
Publication of EP0015873B1 publication Critical patent/EP0015873B1/fr
Application granted granted Critical
Publication of EP0015873B2 publication Critical patent/EP0015873B2/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/027—Circuits for deriving low frequency timing pulses from pulses of higher frequency by combining pulse-trains of different frequencies, e.g. obtained from two independent oscillators or from a common oscillator by means of different frequency dividing ratios

Definitions

  • the present invention relates to an oscillator with a high-frequency quartz resonator, the primary thought being those resonators which are very precise on the one hand and which have a relatively high long-term stability on the other hand.
  • High-frequency quartz resonators with a frequency of 4.19 MHz are known and are used, among other things. used in wristwatches. While the frequency stability, the temperature stability and the long-term behavior (aging) are much cheaper than with the usual low-frequency quartz resonators with a frequency of 32 kHz, on the other hand the power consumption is much higher, so that the currently available batteries have to be replaced more frequently. Particularly with regard to long-term batteries under development with an expected lifespan of 5-10 years, it would be desirable to obtain an oscillator that has all the advantages of a high-frequency oscillator, but with a low power consumption that is essentially the same as that of a low-frequency Oscillator lies.
  • the oscillator which achieves this goal is characterized in that, in order to reduce the power consumption, it has a circuit containing a low-frequency quartz resonator with means for generating a correction signals, which goes to a programmable frequency divider and has an electronic switch for periodically switching the high-frequency quartz resonator.
  • the Mit a beat frequency generator for generating a correction signal.
  • the basic diagram of the oscillator circuit can be seen in FIG.
  • the frequency of 4.19 MHz, 8.38, for example M Hz or higher of the high-frequency resonator HF with a cut according to US Pat. No. 4,071,797 is reduced to 32 kHz in a frequency divider FT and given A to a beat frequency generator SFG.
  • the signal from the low-frequency resonator for example a common quartz resonator with 32 kHz, is also applied to the beat frequency generator at point B.
  • a correction signal is generated, which is sent to a programmable frequency divider PRFT, which is also fed by the low-frequency signal.
  • the low-frequency signal is corrected in this programmable frequency divider and sent to the output OFF, from where it reaches the known timer circuit, which is not explained in detail here.
  • An electronic switch ES powered by the supply voltage Vs, is controlled by a signal CP from the timer circuit to provide a periodic signal S which periodically switches the high frequency resonator, the frequency divider FT and the beat frequency generator SFG.
  • a switch-on time of at least 16 seconds is necessary in order to obtain a sufficiently precise correction signal each time, so that a resolution of 1. 10 -3 s / d is reached.
  • the switch-off time can be 15 minutes, for example, ie the signal CP is generated every 15 minutes for at least 16 seconds.
  • the power consumption of the high-frequency resonator is reduced to approximately 1/50.
  • a new learning cycle begins every 15 minutes and if the frequency of the LF generator has changed during this time, the programmable frequency divider PRFT is reset.
  • a temperature com compensation circuit TC are switched on in order to keep the influence of the temperature negligibly small. Since two quartz crystals are already used, digital temperature compensation by means of two quartz resonators is necessary in this case.
  • FIGS. 2 and 4 show two details of an exemplary embodiment for the generation of the correction signal.
  • the high frequency of 4.19 or 8.38 MHz is reduced to 32 kHz by the first frequency divider FT and then to a frequency of 1/16 Hz by a second frequency divider FT1.
  • the low frequency of 32 kHz is also reduced to 1 by a frequency divider FT2 / 16 Hz brought.
  • a high-frequency resonator with a frequency of 8.38 MHz, however, one could also choose one of 1/8 Hz.
  • FIG. 3 shows the circuit suitable for FIG. 3.
  • the two signals A 'and B' arrive at an EX-OR gate, which only responds when there is a difference between the two signals, ie as shown in FIG.
  • the logic LG sends a pulse to the flip-flop FF1, which then changes its sign and inputs this signal into the counter, whereupon the counter counts in the correct direction.
  • a second flip-flop FFR resets the bidirectional counter at the start of the measurement, the two flip-flops FF1 and FFR in turn being set to zero by the periodic signal S from the electronic switch ES when the high-frequency resonator is switched on.
  • the output from the counter reaches the programmable frequency divider via a decoder DC, as does a sign signal from the logic LG.
  • the programmable frequency divider always receives a correction signal that corresponds to the difference between the frequency response of the high-frequency and the low-frequency resonator, so that on average the output signal AUS changes over time in terms of accuracy, temperature behavior and aging in accordance with the behavior of the high-frequency quartz resonator behaves while the power consumption corresponds approximately to that of the continuously switched 32 kHz low-frequency quartz resonator.
  • the temperature compensation circuit TE mentioned in the discussion of FIG. 1 could expediently be connected between the bidirectional counter and the decoder.
  • the frequency difference always has the same sign, even when the temperature changes and the quartz ages, so that the circuit can be simplified considerably.
  • the invention is not limited to the values of 32 kHz on the one hand and 4.19 and 8.38 MHz on the other hand, but that other quartz resonators with other values can also be used.
  • the oscillator described here can wherever high accuracy and favorable temperature and long-term behavior are desired and where the available volume is small. This applies, for example, to a wristwatch or a film camera.
  • the period in which the frequency comparison takes place can also differ from the specified value; it depends on the highest available frequency and the desired resolution of the frequency setting. Another interval can also be selected within which the high-frequency resonator is switched off.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
EP80810066A 1979-03-09 1980-02-22 Oscillateur avec un résonateur basse fréquence à quartz Expired EP0015873B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH226779A CH620087B (de) 1979-03-09 1979-03-09 Oszillator mit einem hochfrequenz-quarzresonator.
CH2267/79 1979-03-09

Publications (3)

Publication Number Publication Date
EP0015873A1 true EP0015873A1 (fr) 1980-09-17
EP0015873B1 EP0015873B1 (fr) 1983-04-13
EP0015873B2 EP0015873B2 (fr) 1986-06-11

Family

ID=4229764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80810066A Expired EP0015873B2 (fr) 1979-03-09 1980-02-22 Oscillateur avec un résonateur basse fréquence à quartz

Country Status (5)

Country Link
US (1) US4344046A (fr)
EP (1) EP0015873B2 (fr)
JP (1) JPS55124311A (fr)
CH (1) CH620087B (fr)
DE (1) DE3062665D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032359B1 (fr) * 1980-01-10 1984-08-08 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Oscillateur à compensation numérique de température

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH643106B (fr) * 1980-11-26 Suisse Horlogerie Garde-temps comprenant une chaine de diviseurs au rapport de division ajustable.
US4443116A (en) * 1981-01-09 1984-04-17 Citizen Watch Company Limited Electronic timepiece
JPS5843187A (ja) * 1981-09-03 1983-03-12 Fuji Electric Co Ltd 可変周波発振方式
US5428315A (en) * 1985-01-22 1995-06-27 The United States Of America As Represented By The Secreatry Of The Army Method of making radiation hardened quartz crystal oscillators
JPS6238605A (ja) * 1985-08-13 1987-02-19 Nec Corp 水晶発振器
US5179359A (en) * 1992-03-16 1993-01-12 Hughes Aircraft Company Digitally controlled frequency generator including a crystal oscillator
DE19618094C2 (de) * 1996-05-06 1999-06-02 Sgs Thomson Microelectronics Steuerschaltung mit nachstimmbarem Standby-Oszillator
JPH10190568A (ja) * 1996-12-27 1998-07-21 Matsushita Electric Ind Co Ltd 無線受信装置
US5844435A (en) * 1997-03-11 1998-12-01 Lucent Technologies Inc Low power, high accuracy clock circuit and method for integrated circuits
US5831485A (en) * 1997-09-04 1998-11-03 Tektronix, Inc. Method and apparatus for producing a temperature stable frequency using two oscillators
ATE442614T1 (de) * 2000-01-10 2009-09-15 Eta Sa Mft Horlogere Suisse Vorrichtung um ein signal zu erzeugen,dessen frequenz wesentlich temperatur unabhängig ist
CN100451914C (zh) * 2001-08-29 2009-01-14 联发科技股份有限公司 锁相环迅速加电方法和装置
US7019680B2 (en) * 2003-04-25 2006-03-28 Jackson Gregory P Hand-held, continuously variable, remote controller
FR2854992B1 (fr) * 2003-05-15 2005-07-01 Suisse Electronique Microtech Architecture pour base de temps
EP2525265B1 (fr) * 2011-05-14 2015-06-03 Johnson Controls Automotive Electronics GmbH Procédé de fonctionnement d'un dispositif d'horloge
CN104143961B (zh) * 2014-07-25 2018-01-19 广东大普通信技术有限公司 一种恒温晶体振荡器频率校准方法、装置及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364439A (en) * 1966-10-07 1968-01-16 Tele Signal Corp Frequency corrected digital clock with memory in phase control loop
DE2342701A1 (de) * 1972-08-24 1974-03-14 Dynacore Sa Generator von isochronen perioden und dessen verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5071362A (fr) * 1973-10-24 1975-06-13
JPS6035637B2 (ja) * 1975-06-05 1985-08-15 シチズン時計株式会社 電子時計
GB1570659A (en) * 1976-06-30 1980-07-02 Suwa Seikosha Kk Electronic timepiece
JPS5388762A (en) * 1976-12-27 1978-08-04 Seiko Epson Corp Electronic watch with temperature compensation
JPS5428177A (en) * 1977-08-04 1979-03-02 Seiko Epson Corp Electronic watch
JPS5428178A (en) * 1977-08-04 1979-03-02 Seiko Epson Corp Electronic watch
JPS5550191A (en) * 1978-10-06 1980-04-11 Citizen Watch Co Ltd Electronic timepiece

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364439A (en) * 1966-10-07 1968-01-16 Tele Signal Corp Frequency corrected digital clock with memory in phase control loop
DE2342701A1 (de) * 1972-08-24 1974-03-14 Dynacore Sa Generator von isochronen perioden und dessen verwendung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAHRBUCH DER DEUTSCHEN GESELLSCHAFT FUR CHRONOMETRIE E.V., Band 28, 1977, Stuttgart, DE, H. EFFENBERGER: "Digitale Temperaturkonpensation von Schwingquarzoszillatoren mit automatischem Frequenzabgleich", Seiten 9-15 * Seite 10, Zeilen 47-50; Seite 11, Seite 12, Zeilen 1-6; Seite 15, Zeilen 3-10; Abbildung 1 * *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032359B1 (fr) * 1980-01-10 1984-08-08 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Oscillateur à compensation numérique de température

Also Published As

Publication number Publication date
EP0015873B1 (fr) 1983-04-13
EP0015873B2 (fr) 1986-06-11
CH620087B (de)
DE3062665D1 (en) 1983-05-19
US4344046A (en) 1982-08-10
JPS6347002B2 (fr) 1988-09-20
JPS55124311A (en) 1980-09-25
CH620087GA3 (fr) 1980-11-14

Similar Documents

Publication Publication Date Title
EP0015873A1 (fr) Oscillateur avec un résonateur basse fréquence à quartz
DE3855081T2 (de) Analoger elektronischer Zeitgeber
DE1946166A1 (de) Zeithaltende Einrichtung mit einer Impulsuntersetzerschaltung
DE2253425C3 (de) Kapazitive Abstimmeinheit zur Frepenzkorrektur von quarzgesteuerten Oszillatoren
DE2528812B2 (de) Antiprellschaltkreis
DE2807214C3 (de) Zeitmeßeinrichtung
DE2233800A1 (de) Pulsgenerator mit einstellbarer frequenz
DE2621532A1 (de) Verfahren zur frequenzsteuerung von elektrischen schwingungssignalen und frequenznormal-schaltungen fuer elektrische uhren
DE2452687B2 (de) Schaltvorrichtung fuer eine elektronische uhr mit elektrooptischer anzeige
DE2222936A1 (de) Zeitmessgeraet
DE2723190C3 (de) Schaltung zum Stillsetzen einer elektronischen Uhr
DE2716387C3 (de) Elektronische Uhr
DE2537629A1 (de) Quarzuhr
DE2950948C2 (de) Energieversorgungsvorrichtung für ein elektronisches Gerät
DE2853627A1 (de) Elektronische uhr
DE69001009T2 (de) Elektronisches Uhrwerk.
DE2352422B2 (de) Schaltung zum Erzeugen einer Hilfsspannung in elektronischen Uhren
DE2305682A1 (de) Zeithaltendes geraet, insbesondere quarzarmbanduhr mit elektronisch geregeltem anzeigesystem
DE1946166C (de) Zeithaltende Einrichtung mit einer Impulsuntersetzerschaltung
DE2848675A1 (de) Elektronisches zeitmessgeraet mit weckeinrichtung
DE3726277C2 (fr)
DE4414581A1 (de) Schaltungsanordnung zur Phasensynchronisation zweier periodischer Signale, insbesondere zur Anwendung in einer Funkuhr
DE2833653A1 (de) Frequenzeinstellschaltung
DE2848673B2 (de) Elektronisches Zeitmeßgerät, bei welchem ein Eingang der integrierten Schaltung als Ausgang verwendet wird
DE2350879A1 (de) Elektronische einrichtung zur steuerung eines uhrwerks

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB NL

17P Request for examination filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB NL

REF Corresponds to:

Ref document number: 3062665

Country of ref document: DE

Date of ref document: 19830519

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840131

Year of fee payment: 5

26 Opposition filed

Opponent name: SIEMENS AG, BERLIN UND MUENCHEN

Effective date: 19840110

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19850221

Year of fee payment: 6

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19860611

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE FR GB NL

NLR2 Nl: decision of opposition
ET3 Fr: translation filed ** decision concerning opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870228

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19890901

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19891101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST