GB1482086A - Crystal controlled oscillator arrangement - Google Patents
Crystal controlled oscillator arrangementInfo
- Publication number
- GB1482086A GB1482086A GB5597473A GB5597473A GB1482086A GB 1482086 A GB1482086 A GB 1482086A GB 5597473 A GB5597473 A GB 5597473A GB 5597473 A GB5597473 A GB 5597473A GB 1482086 A GB1482086 A GB 1482086A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- controlled oscillator
- oscillator
- arrangement
- oscillators
- 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 title 1
- 239000000758 substrate Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/20—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it
-
- 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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
1482086 Electronic timepieces STANDARD TELEPHONES & CABLES Ltd 28 Nov 1974 [3 Dec 1973] 55974/73 Heading G3T [Also in Division H3] An arrangement providing a low frequency output for use in timepiece oscillators &c. comprises two high frequency oscillators 1, 2 each including a thickness shear mode Piezo-electric vibrator 3, 4 and an arrangement 6 for deriving the difference frequency and a phase sensitive detector 7 for controlling the frequency f 2 of oscillator 2 such that the difference frequency is a sub-multiple of the oscillator 1 frequency f 1 . The controlled oscillator 2 may include a varactor 5 for effecting frequency control. The vibrators 3, 4 may be arranged on the same Piezo-electric substrate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5597473A GB1482086A (en) | 1973-12-03 | 1973-12-03 | Crystal controlled oscillator arrangement |
DE19742455236 DE2455236C3 (en) | 1973-12-03 | 1974-11-21 | Low-frequency oscillator arrangement with two high-frequency oscillators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5597473A GB1482086A (en) | 1973-12-03 | 1973-12-03 | Crystal controlled oscillator arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1482086A true GB1482086A (en) | 1977-08-03 |
Family
ID=10475391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5597473A Expired GB1482086A (en) | 1973-12-03 | 1973-12-03 | Crystal controlled oscillator arrangement |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2455236C3 (en) |
GB (1) | GB1482086A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2371091A1 (en) * | 1976-10-29 | 1978-06-09 | Thomson Csf | PHASE CONTROL DEVICE OF A CARRIER WAVE AND SIDE BANDS GENERATED BY A TRANSMITTER, IN PARTICULAR BY A RADIONAVIGATION TRANSMITTER, AND RADIONAVIGATION TRANSMITTER INCLUDING SUCH A DEVICE |
DE3007717C2 (en) * | 1980-02-29 | 1984-12-20 | Erich 6603 Sulzbach Scherer | Circuit arrangement for electrotherapy |
JPS57112137A (en) * | 1980-12-29 | 1982-07-13 | Advantest Corp | Frequency synthesizer |
DE3216631C2 (en) * | 1982-05-04 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | Oscillator circuit |
-
1973
- 1973-12-03 GB GB5597473A patent/GB1482086A/en not_active Expired
-
1974
- 1974-11-21 DE DE19742455236 patent/DE2455236C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2455236B2 (en) | 1978-05-03 |
DE2455236C3 (en) | 1978-12-21 |
DE2455236A1 (en) | 1975-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |