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 |
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