BE718868A - - Google Patents
Info
- Publication number
- BE718868A BE718868A BE718868DA BE718868A BE 718868 A BE718868 A BE 718868A BE 718868D A BE718868D A BE 718868DA BE 718868 A BE718868 A BE 718868A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/16—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of electromechanical resonators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65844367A | 1967-08-04 | 1967-08-04 | |
| US84923969A | 1969-07-25 | 1969-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE718868A true BE718868A (fr) | 1968-12-31 |
Family
ID=27097629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE718868D BE718868A (fr) | 1967-08-04 | 1968-07-31 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3525944A (fr) |
| BE (1) | BE718868A (fr) |
| DE (1) | DE1766871B1 (fr) |
| FR (1) | FR1576792A (fr) |
| GB (1) | GB1234097A (fr) |
| NL (1) | NL151860B (fr) |
| SE (1) | SE333170B (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617923A (en) * | 1969-11-06 | 1971-11-02 | Bell Telephone Labor Inc | Beat frequency generator using two oscillators controlled by a multiresonator crystal |
| US3626310A (en) * | 1970-03-06 | 1971-12-07 | Gen Electric | Frequency discriminator |
| US3662459A (en) * | 1970-04-01 | 1972-05-16 | Gen Electric | Method for tuning discriminators |
| US3750027A (en) * | 1970-08-12 | 1973-07-31 | Texas Instruments Inc | Surface wave frequency discriminators |
| US3697788A (en) * | 1970-09-30 | 1972-10-10 | Motorola Inc | Piezoelectric resonating device |
| FR2167405B1 (fr) * | 1972-01-14 | 1976-06-11 | Thomson Csf | |
| US4076987A (en) * | 1976-12-10 | 1978-02-28 | Societe Suisse Pour L'industrie Horlogere Management Services S.A. | Multiple resonator or filter vibrating in a coupled mode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2233199A (en) * | 1940-01-02 | 1941-02-25 | Rca Corp | Signal detecting system |
| US2771552A (en) * | 1951-05-09 | 1956-11-20 | Donald W Lynch | Discriminating detector |
| US3199040A (en) * | 1962-09-06 | 1965-08-03 | James E Coogan | Crystal frequency discriminator |
-
1968
- 1968-07-26 SE SE10227/68A patent/SE333170B/xx unknown
- 1968-07-31 BE BE718868D patent/BE718868A/xx unknown
- 1968-08-01 GB GB1234097D patent/GB1234097A/en not_active Expired
- 1968-08-02 DE DE19681766871 patent/DE1766871B1/de not_active Withdrawn
- 1968-08-02 NL NL686811008A patent/NL151860B/xx not_active IP Right Cessation
- 1968-08-02 FR FR1576792D patent/FR1576792A/fr not_active Expired
-
1969
- 1969-07-25 US US849239A patent/US3525944A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3525944A (en) | 1970-08-25 |
| SE333170B (sv) | 1971-03-08 |
| NL6811008A (fr) | 1969-02-06 |
| FR1576792A (fr) | 1969-08-01 |
| NL151860B (nl) | 1976-12-15 |
| GB1234097A (fr) | 1971-06-03 |
| DE1766871B1 (de) | 1971-05-06 |