FR2732839B1 - Auto-etalonneur d'oscillateur - Google Patents

Auto-etalonneur d'oscillateur

Info

Publication number
FR2732839B1
FR2732839B1 FR9605443A FR9605443A FR2732839B1 FR 2732839 B1 FR2732839 B1 FR 2732839B1 FR 9605443 A FR9605443 A FR 9605443A FR 9605443 A FR9605443 A FR 9605443A FR 2732839 B1 FR2732839 B1 FR 2732839B1
Authority
FR
France
Prior art keywords
calibrator
oscillator self
oscillator
self
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.)
Expired - Fee Related
Application number
FR9605443A
Other languages
English (en)
Other versions
FR2732839A1 (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.)
Individual
Original Assignee
Individual
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
Priority claimed from US08/175,209 external-priority patent/US5442669A/en
Application filed by Individual filed Critical Individual
Publication of FR2732839A1 publication Critical patent/FR2732839A1/fr
Application granted granted Critical
Publication of FR2732839B1 publication Critical patent/FR2732839B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/005—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers using electronic timing, e.g. counting means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/02—Registering or indicating working or idle time only
    • G07C3/04—Registering or indicating working or idle time only using counting means or digital clocks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electric Clocks (AREA)
FR9605443A 1993-12-27 1996-04-30 Auto-etalonneur d'oscillateur Expired - Fee Related FR2732839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/175,209 US5442669A (en) 1993-12-27 1993-12-27 Perishable good integrity indicator
FR9415721A FR2714461B1 (fr) 1993-12-27 1994-12-27 Indicateur d'intégrité de marchandises périssables.

Publications (2)

Publication Number Publication Date
FR2732839A1 FR2732839A1 (fr) 1996-10-11
FR2732839B1 true FR2732839B1 (fr) 1997-09-05

Family

ID=26231645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9605443A Expired - Fee Related FR2732839B1 (fr) 1993-12-27 1996-04-30 Auto-etalonneur d'oscillateur

Country Status (1)

Country Link
FR (1) FR2732839B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3048962B2 (ja) * 1997-06-20 2000-06-05 日本電気アイシーマイコンシステム株式会社 時間測定方法及び時間測定システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058357A (en) * 1979-09-04 1981-04-08 Secretary Industry Brit Averaging thermometer
US4494021A (en) * 1982-08-30 1985-01-15 Xerox Corporation Self-calibrated clock and timing signal generator for MOS/VLSI circuitry
DE3936543A1 (de) * 1989-11-02 1991-05-08 Badische Tabakmanufaktur Elektrischer verfallsindikator
US5036528A (en) * 1990-01-29 1991-07-30 Tandem Computers Incorporated Self-calibrating clock synchronization system

Also Published As

Publication number Publication date
FR2732839A1 (fr) 1996-10-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20090831