FR931748A - Perfectionnements à la réception des signaux et ondes entretenues - Google Patents
Perfectionnements à la réception des signaux et ondes entretenuesInfo
- Publication number
- FR931748A FR931748A FR931748DA FR931748A FR 931748 A FR931748 A FR 931748A FR 931748D A FR931748D A FR 931748DA FR 931748 A FR931748 A FR 931748A
- Authority
- FR
- France
- Prior art keywords
- reception
- signals
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
- H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/063—Superheterodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1633/41A GB547737A (en) | 1941-02-07 | 1941-02-07 | Improvements in or relating to radio receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR931748A true FR931748A (fr) | 1948-03-02 |
Family
ID=9725316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR931748D Expired FR931748A (fr) | 1941-02-07 | 1946-08-01 | Perfectionnements à la réception des signaux et ondes entretenues |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2314785A (fr) |
| FR (1) | FR931748A (fr) |
| GB (1) | GB547737A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL66625C (fr) * | 1944-11-03 | |||
| US2593349A (en) * | 1947-11-01 | 1952-04-15 | Rca Corp | Beat frequency oscillator for receivers |
| US2726327A (en) * | 1953-01-27 | 1955-12-06 | Raytheon Mfg Co | Mixer circuits |
| US3018372A (en) * | 1958-02-17 | 1962-01-23 | Sarkes Tarzian | High frequency tuner |
-
1941
- 1941-02-07 GB GB1633/41A patent/GB547737A/en not_active Expired
-
1942
- 1942-02-27 US US432589A patent/US2314785A/en not_active Expired - Lifetime
-
1946
- 1946-08-01 FR FR931748D patent/FR931748A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB547737A (en) | 1942-09-09 |
| US2314785A (en) | 1943-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR982997A (fr) | Propagation guidée d'ondes centimétriques | |
| FR938588A (fr) | Dispositif indicateur à distance | |
| FR884435A (fr) | émetteur à ondes décimétriques | |
| FR855462A (fr) | Perfectionnements à la transmission des signaux électriques | |
| FR931748A (fr) | Perfectionnements à la réception des signaux et ondes entretenues | |
| FR899651A (fr) | Gazogène à fumier et gadoues | |
| FR843668A (fr) | Dispositif de réglage angulaire et ses applications | |
| FR875517A (fr) | Sifflet-bracelet | |
| FR881292A (fr) | Dispositif radiogoniométrique | |
| FR57757E (fr) | Dispositifs radiogoniométriques et analogues | |
| FR973722A (fr) | Systèmes radioélectriques indicateurs de direction et analogues | |
| FR880223A (fr) | Dispositif destiné à la production ou à l'amplification des ondes ultracourtes | |
| FR941227A (fr) | Dispositifs radiogoniométriques et analogues | |
| FR887069A (fr) | Dispositif amplificateur pour ondes décimétriques | |
| FR875225A (fr) | Dispositif de mesure de fréquences | |
| FR941583A (fr) | Gazogènes.-ensembles et dispositions spéciales | |
| FR904790A (fr) | Robinet d'arrêt | |
| GR9861B (el) | Υποκαταστατον του κακαου και του καφε. | |
| FR891307A (fr) | Mode de réception des ondes entretenues pures | |
| FR972340A (fr) | Dispositif amplificateur ou oscillateur pour ondes ultra-courtes | |
| ES151486A1 (es) | Mejoras en los métodos y medios para registrar señales eléctricamente | |
| FR930901A (fr) | Perfectionnements à la discrimination des signaux complémentaires | |
| FR973307A (fr) | Sondeur sous-marin à écho | |
| FR890283A (fr) | Broyeur à boulets | |
| ES158966A1 (es) | Perfeccionamientos introducidos en la construcción de bidones |