GB1272997A - Horological electronic circuit - Google Patents
Horological electronic circuitInfo
- Publication number
- GB1272997A GB1272997A GB2576769A GB2576769A GB1272997A GB 1272997 A GB1272997 A GB 1272997A GB 2576769 A GB2576769 A GB 2576769A GB 2576769 A GB2576769 A GB 2576769A GB 1272997 A GB1272997 A GB 1272997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- horological
- electronic circuit
- crystal
- channel
- divisions
- 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
Links
- 239000013078 crystal Substances 0.000 abstract 3
- 230000005669 field effect Effects 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
Classifications
-
- 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
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
- H03B5/364—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device the amplifier comprising field effect transistors
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electric Clocks (AREA)
Abstract
1,272,997. Crystal oscillators. UNITED STATES TIME CORP. 20 May, 1969 [13 June, 1968], No. 25767/69. Heading H3T. [Also in Divisions G3 and G4] A crystal oscillator for use as a time base in an electronic timepiece (see Division G3) includes a crystal 11, and P-channel and N-channel metal oxide insulated gate field effect transistors Q1, Q<SP>2</SP>, Q3, and Q4 arranged as shown.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73661868A | 1968-06-13 | 1968-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1272997A true GB1272997A (en) | 1972-05-03 |
Family
ID=24960578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2576769A Expired GB1272997A (en) | 1968-06-13 | 1969-05-20 | Horological electronic circuit |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1928878A1 (en) |
FR (1) | FR2010828B1 (en) |
GB (1) | GB1272997A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1339402A (en) * | 1971-02-18 | 1973-12-05 | Suwa Seikosha Kk | Timepiece |
US3725822A (en) * | 1971-05-20 | 1973-04-03 | Rca Corp | Phase shift oscillators using insulated-gate field-effect transistors |
JPS5135875B1 (en) * | 1973-05-15 | 1976-10-05 | ||
DE4210258A1 (en) * | 1992-03-28 | 1993-09-30 | Man Nutzfahrzeuge Ag | Transmission for vehicle with two engines - has separate clutches to couple to summation gearing and further clutch to couple to main gearbox |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH289118A (en) * | 1951-04-05 | 1953-02-28 | Ancienne Manufacture D Horloge | Clock. |
FR1517155A (en) * | 1966-03-04 | 1968-03-15 | Shell Int Research | Biologically active 1,3-butadiene derivatives, compositions containing them, their preparation and use |
-
1969
- 1969-05-20 GB GB2576769A patent/GB1272997A/en not_active Expired
- 1969-06-06 DE DE19691928878 patent/DE1928878A1/en active Pending
- 1969-06-12 FR FR6919531A patent/FR2010828B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1928878A1 (en) | 1970-06-25 |
FR2010828A1 (en) | 1970-02-20 |
FR2010828B1 (en) | 1974-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |