JPS4842751B1 - - Google Patents
Info
- Publication number
- JPS4842751B1 JPS4842751B1 JP4061368A JP4061368A JPS4842751B1 JP S4842751 B1 JPS4842751 B1 JP S4842751B1 JP 4061368 A JP4061368 A JP 4061368A JP 4061368 A JP4061368 A JP 4061368A JP S4842751 B1 JPS4842751 B1 JP S4842751B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
-
- 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
- H03B5/366—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 and comprising means for varying the frequency by a variable voltage or current
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
- H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Polyurethanes Or Polyureas (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2784467A GB1163064A (en) | 1967-06-16 | 1967-06-16 | Circuits for Controlling the Resonant Frequency of a Piezo-Electric Crystal or the like. |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4842751B1 true JPS4842751B1 (no) | 1973-12-14 |
Family
ID=10266224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4061368A Pending JPS4842751B1 (no) | 1967-06-16 | 1968-06-14 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4842751B1 (no) |
DK (1) | DK119618B (no) |
FR (1) | FR1568658A (no) |
GB (1) | GB1163064A (no) |
NL (1) | NL150969B (no) |
NO (1) | NO128138B (no) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2233513A (en) * | 1989-06-09 | 1991-01-09 | Philips Electronic Associated | Oscillators |
-
1967
- 1967-06-16 GB GB2784467A patent/GB1163064A/en not_active Expired
-
1968
- 1968-06-14 JP JP4061368A patent/JPS4842751B1/ja active Pending
- 1968-06-14 NO NO232668A patent/NO128138B/no unknown
- 1968-06-14 DK DK278768A patent/DK119618B/da unknown
- 1968-06-14 FR FR1568658D patent/FR1568658A/fr not_active Expired
- 1968-06-14 NL NL6808392A patent/NL150969B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NO128138B (no) | 1973-10-01 |
NL6808392A (no) | 1968-12-17 |
GB1163064A (en) | 1969-09-04 |
NL150969B (nl) | 1976-09-15 |
FR1568658A (no) | 1969-05-23 |
DK119618B (da) | 1971-02-01 |