CA411423A - Systeme de conversion des frequences - Google Patents
Systeme de conversion des frequencesInfo
- Publication number
- CA411423A CA411423A CA411423A CA411423DA CA411423A CA 411423 A CA411423 A CA 411423A CA 411423 A CA411423 A CA 411423A CA 411423D A CA411423D A CA 411423DA CA 411423 A CA411423 A CA 411423A
- Authority
- CA
- Canada
- Prior art keywords
- frequency conversion
- conversion system
- frequency
- conversion
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
- H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
- H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA411423T | |||
US315998A US2228815A (en) | 1940-01-27 | 1940-01-27 | Frequency conversion system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA411423A true CA411423A (fr) | 1943-03-30 |
Family
ID=23227015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA411423A Expired CA411423A (fr) | 1940-01-27 | Systeme de conversion des frequences |
Country Status (4)
Country | Link |
---|---|
US (1) | US2228815A (fr) |
CA (1) | CA411423A (fr) |
CH (1) | CH232472A (fr) |
FR (1) | FR869542A (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502294A (en) * | 1943-08-19 | 1950-03-28 | Wallace Marcel | Double sweep panoramic radio receiver |
GB579567A (en) * | 1943-10-07 | 1946-08-08 | Marconi Wireless Telegraph Co | Improvements in frequency controlling and stabilising means in radio-apparatus and the like |
US2643329A (en) * | 1945-05-14 | 1953-06-23 | Standard Telephones Cables Ltd | Tracking system between receiver and transmitter |
US2501591A (en) * | 1945-08-27 | 1950-03-21 | Premier Crystal Lab Inc | Multiband superheterodyne radio receiver having a push-button station selector |
US2656459A (en) * | 1945-10-30 | 1953-10-20 | John H Tinlot | Wide frequency coverage beacon receiver |
US2555391A (en) * | 1946-03-04 | 1951-06-05 | Arthur A Glass | Radio oscillator control |
US2451430A (en) * | 1946-04-23 | 1948-10-12 | Jefferson Standard Broadcastin | Carrier frequency shift signaling |
US2666141A (en) * | 1946-05-08 | 1954-01-12 | James K Clapp | Single side band mixer for moving target indicating radar systems |
US2509963A (en) * | 1947-01-30 | 1950-05-30 | Collins Radio Co | Radio receiving and frequency conversion system |
US2647992A (en) * | 1948-12-03 | 1953-08-04 | Gen Electric | Frequency stabilized radio receiving system |
US2633492A (en) * | 1948-12-30 | 1953-03-31 | Bell Telephone Labor Inc | Guided wave frequency range, frequency selective and equalizing structure |
US2710343A (en) * | 1950-08-09 | 1955-06-07 | Dale Belford | Secrecy system for transmitting television signals |
US2691065A (en) * | 1951-01-12 | 1954-10-05 | Rca Corp | Multiplex relay system |
US2800580A (en) * | 1952-04-21 | 1957-07-23 | Philco Corp | Delay system |
DE1276144B (de) * | 1962-09-19 | 1968-08-29 | Siemens Ag | Richtfunksystem mit Winkelmodulation |
US4991144A (en) * | 1963-03-29 | 1991-02-05 | The United States Of America As Represented By The Secretary Of The Navy | Dopplerized echo repeater |
US3921123A (en) * | 1967-02-02 | 1975-11-18 | Us Navy | Torpedo target simulator |
USRE31295E (en) * | 1971-03-01 | 1983-06-28 | Bell Telephone Laboratories, Incorporated | Carrier supply for frequency division multiplexed systems |
US3733438A (en) * | 1971-03-01 | 1973-05-15 | Bell Telephone Labor Inc | Carrier supply for frequency division multiplexed systems |
US4083004A (en) * | 1976-06-08 | 1978-04-04 | Westinghouse Electric Corporation | Expendable repeater employing harmonic mixing |
JPS58176459U (ja) * | 1982-05-19 | 1983-11-25 | アルプス電気株式会社 | 局部発振器用増幅器 |
-
0
- CA CA411423A patent/CA411423A/fr not_active Expired
-
1940
- 1940-01-27 US US315998A patent/US2228815A/en not_active Expired - Lifetime
-
1941
- 1941-01-28 FR FR869542D patent/FR869542A/fr not_active Expired
- 1941-08-13 CH CH232472D patent/CH232472A/de unknown
Also Published As
Publication number | Publication date |
---|---|
US2228815A (en) | 1941-01-14 |
FR869542A (fr) | 1942-02-04 |
CH232472A (de) | 1944-05-31 |
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