DK429374A - - Google Patents
Info
- Publication number
- DK429374A DK429374A DK429374A DK429374A DK429374A DK 429374 A DK429374 A DK 429374A DK 429374 A DK429374 A DK 429374A DK 429374 A DK429374 A DK 429374A DK 429374 A DK429374 A DK 429374A
- Authority
- DK
- Denmark
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Measuring Phase Differences (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7329879A FR2241162B1 (da) | 1973-08-16 | 1973-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK429374A true DK429374A (da) | 1975-04-28 |
Family
ID=9124036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK429374A DK429374A (da) | 1973-08-16 | 1974-08-12 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3944938A (da) |
| JP (1) | JPS5051249A (da) |
| BE (1) | BE818421A (da) |
| CA (1) | CA1006587A (da) |
| DE (1) | DE2439105A1 (da) |
| DK (1) | DK429374A (da) |
| FR (1) | FR2241162B1 (da) |
| GB (1) | GB1429921A (da) |
| IT (1) | IT1019780B (da) |
| NL (1) | NL7411038A (da) |
| SE (1) | SE395092B (da) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2314538A1 (fr) * | 1975-06-10 | 1977-01-07 | Thomson Csf | Dispositif correlateur et systeme de mesure du retard entre deux signaux comportant un tel dispositif |
| FR2419614A1 (fr) * | 1978-03-10 | 1979-10-05 | Cit Alcatel | Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude |
| US4241312A (en) * | 1979-07-27 | 1980-12-23 | Barnes James R | Self-calibrating threshold detector |
| DE3329269A1 (de) * | 1983-08-12 | 1985-02-28 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zum erzeugen von rechtecksignalen |
| DE3436192A1 (de) * | 1984-10-03 | 1986-04-10 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Phasenvergleichsschaltung |
| US4686481A (en) * | 1985-02-01 | 1987-08-11 | Advanced Micro Devices, Inc. | Phase detector apparatus including charge pump means |
| EP0310960A3 (en) * | 1987-10-05 | 1990-04-25 | Advantest Corporation | Digital lock-in amplifier |
| FR2624674A1 (fr) * | 1987-12-15 | 1989-06-16 | Thomson Csf | Procede et dispositif de modulation-demodulation d'amplitude coherente |
| US4858208A (en) * | 1988-07-11 | 1989-08-15 | Motorola, Inc. | Apparatus and method for testing semiconductor devices |
| DE102019002024A1 (de) * | 2019-03-21 | 2020-09-24 | Sciknowtec Gmbh | Lock-In-Verstärker mit Referenz |
| DE102019002013A1 (de) * | 2019-03-21 | 2020-09-24 | Sciknowtec Gmbh | Doppel-Lock-In-Verstärker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3001133A (en) * | 1956-12-24 | 1961-09-19 | Gen Dynamics Corp | Phase detectors |
| US3083340A (en) * | 1959-03-02 | 1963-03-26 | Avco Mfg Corp | Phase and frequency control systems for discriminators and the like |
| US3109143A (en) * | 1960-04-01 | 1963-10-29 | Hughes Aircraft Co | Synchronous demodulator for radiotelegraph signals with phase lock for local oscillator during both mark and space |
| US3122704A (en) * | 1960-09-27 | 1964-02-25 | William H Jones | Signal-to-noise ratio indicator |
-
1973
- 1973-08-16 FR FR7329879A patent/FR2241162B1/fr not_active Expired
-
1974
- 1974-08-02 BE BE1006109A patent/BE818421A/xx unknown
- 1974-08-07 IT IT26071/74A patent/IT1019780B/it active
- 1974-08-09 SE SE7410217A patent/SE395092B/xx unknown
- 1974-08-09 GB GB3514874A patent/GB1429921A/en not_active Expired
- 1974-08-12 DK DK429374A patent/DK429374A/da unknown
- 1974-08-13 CA CA206,946A patent/CA1006587A/fr not_active Expired
- 1974-08-14 DE DE2439105A patent/DE2439105A1/de not_active Withdrawn
- 1974-08-16 JP JP49093491A patent/JPS5051249A/ja active Pending
- 1974-08-16 US US05/498,111 patent/US3944938A/en not_active Expired - Lifetime
- 1974-08-16 NL NL7411038A patent/NL7411038A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1429921A (en) | 1976-03-31 |
| SE395092B (sv) | 1977-07-25 |
| US3944938A (en) | 1976-03-16 |
| DE2439105A1 (de) | 1975-02-27 |
| NL7411038A (nl) | 1975-02-18 |
| CA1006587A (fr) | 1977-03-08 |
| JPS5051249A (da) | 1975-05-08 |
| FR2241162A1 (da) | 1975-03-14 |
| IT1019780B (it) | 1977-11-30 |
| FR2241162B1 (da) | 1976-09-17 |
| SE7410217L (da) | 1975-02-17 |
| BE818421A (fr) | 1975-02-03 |