HK51878A - Improvements in or relating to piezo-electric crystal oscillators - Google Patents
Improvements in or relating to piezo-electric crystal oscillatorsInfo
- Publication number
- HK51878A HK51878A HK51878A HK51878A HK51878A HK 51878 A HK51878 A HK 51878A HK 51878 A HK51878 A HK 51878A HK 51878 A HK51878 A HK 51878A HK 51878 A HK51878 A HK 51878A
- Authority
- HK
- Hong Kong
- Prior art keywords
- piezo
- relating
- electric crystal
- crystal oscillators
- oscillators
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title 1
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/354—Astable circuits
- H03K3/3545—Stabilisation of output, e.g. using crystal
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49273A JPS4991169A (en) | 1972-12-29 | 1972-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK51878A true HK51878A (en) | 1978-09-22 |
Family
ID=11475243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK51878A HK51878A (en) | 1972-12-29 | 1978-09-14 | Improvements in or relating to piezo-electric crystal oscillators |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS4991169A (en) |
| GB (1) | GB1424559A (en) |
| HK (1) | HK51878A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162912B4 (en) | 2001-12-20 | 2006-09-28 | Infineon Technologies Ag | Crystal oscillator circuit |
-
1972
- 1972-12-29 JP JP49273A patent/JPS4991169A/ja active Pending
-
1973
- 1973-12-21 GB GB5962373A patent/GB1424559A/en not_active Expired
-
1978
- 1978-09-14 HK HK51878A patent/HK51878A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1424559A (en) | 1976-02-11 |
| JPS4991169A (en) | 1974-08-30 |
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