FI61777C - Kompenseringskrets foer en kvartskristall - Google Patents
Kompenseringskrets foer en kvartskristall Download PDFInfo
- Publication number
- FI61777C FI61777C FI760070A FI760070A FI61777C FI 61777 C FI61777 C FI 61777C FI 760070 A FI760070 A FI 760070A FI 760070 A FI760070 A FI 760070A FI 61777 C FI61777 C FI 61777C
- Authority
- FI
- Finland
- Prior art keywords
- crystal
- frequencies
- resonant frequency
- resonant
- frequency
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title claims description 88
- 239000010453 quartz Substances 0.000 title claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 18
- 230000000694 effects Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 102000003712 Complement factor B Human genes 0.000 description 1
- 108090000056 Complement factor B Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Liquid Crystal Substances (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7500713A SE383240B (sv) | 1975-01-23 | 1975-01-23 | Kompenseringskrets. |
| SE7500713 | 1975-01-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI760070A7 FI760070A7 (forum.php) | 1976-07-24 |
| FI61777B FI61777B (fi) | 1982-05-31 |
| FI61777C true FI61777C (fi) | 1982-09-10 |
Family
ID=20323471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI760070A FI61777C (fi) | 1975-01-23 | 1976-01-13 | Kompenseringskrets foer en kvartskristall |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4021762A (forum.php) |
| BR (1) | BR7600365A (forum.php) |
| DE (1) | DE2602541A1 (forum.php) |
| DK (1) | DK144048C (forum.php) |
| FI (1) | FI61777C (forum.php) |
| GB (1) | GB1520526A (forum.php) |
| IT (1) | IT1054287B (forum.php) |
| NO (1) | NO141677C (forum.php) |
| SE (1) | SE383240B (forum.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2635180B2 (ja) * | 1989-09-13 | 1997-07-30 | 株式会社日立製作所 | 信号終端回路 |
| US6060813A (en) * | 1998-01-08 | 2000-05-09 | Xerox Corporation | Vibration suppression and electromechanical damping apparatus for electrophotographic printing structures |
| US6870303B2 (en) * | 2002-05-08 | 2005-03-22 | Pohang University Of Science And Technology Foundation | Multi-mode vibration damping device and method using negative capacitance shunt circuits |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179906A (en) * | 1965-04-20 | By-pass netwoems when | ||
| US2313182A (en) * | 1941-04-30 | 1943-03-09 | Rca Corp | Variable selectivity control system |
| US2613320A (en) * | 1948-12-02 | 1952-10-07 | Electronic Res And Mfg Corp | System for using overtone activity of piezoelectric crystals |
| US2637779A (en) * | 1950-11-13 | 1953-05-05 | Collins Radio Co | Crystal filter circuit |
| US2805400A (en) * | 1953-09-30 | 1957-09-03 | Seddon John Carl | Resonant coupling circuit |
| US3613032A (en) * | 1970-03-19 | 1971-10-12 | Hughes Aircraft Co | Composite crystal filter circuit |
-
1975
- 1975-01-23 SE SE7500713A patent/SE383240B/xx not_active IP Right Cessation
- 1975-12-31 US US05/645,560 patent/US4021762A/en not_active Expired - Lifetime
-
1976
- 1976-01-13 FI FI760070A patent/FI61777C/sv not_active IP Right Cessation
- 1976-01-21 IT IT19442/76A patent/IT1054287B/it active
- 1976-01-22 DK DK25176A patent/DK144048C/da not_active IP Right Cessation
- 1976-01-22 NO NO760207A patent/NO141677C/no unknown
- 1976-01-22 GB GB2560/76A patent/GB1520526A/en not_active Expired
- 1976-01-22 BR BR7600365A patent/BR7600365A/pt unknown
- 1976-01-23 DE DE19762602541 patent/DE2602541A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DK144048C (da) | 1982-04-26 |
| SE383240B (sv) | 1976-03-01 |
| DK25176A (da) | 1976-07-24 |
| FI760070A7 (forum.php) | 1976-07-24 |
| DK144048B (da) | 1981-11-23 |
| DE2602541A1 (de) | 1976-07-29 |
| GB1520526A (en) | 1978-08-09 |
| FI61777B (fi) | 1982-05-31 |
| NO141677C (no) | 1980-04-23 |
| NO760207L (forum.php) | 1976-07-26 |
| NO141677B (no) | 1980-01-07 |
| US4021762A (en) | 1977-05-03 |
| BR7600365A (pt) | 1976-08-31 |
| IT1054287B (it) | 1981-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: OY L M ERICSSON AB |