BE566349A - - Google Patents
Info
- Publication number
- BE566349A BE566349A BE566349DA BE566349A BE 566349 A BE566349 A BE 566349A BE 566349D A BE566349D A BE 566349DA BE 566349 A BE566349 A BE 566349A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/01—Reducing phase shift
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
- G01S13/586—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value using, or combined with, frequency tracking means
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S367/00—Communications, electrical: acoustic wave systems and devices
- Y10S367/904—Doppler compensation systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transceivers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB10707/57A GB830021A (en) | 1957-04-02 | 1957-04-02 | Improvements in or relating to radio communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE566349A true BE566349A (ru) | 1960-07-29 |
Family
ID=9972800
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE566349D BE566349A (ru) | 1957-04-02 | 1958-04-02 | |
| BE672877D BE672877A (ru) | 1957-04-02 | 1965-11-26 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE672877D BE672877A (ru) | 1957-04-02 | 1965-11-26 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2974222A (ru) |
| BE (2) | BE566349A (ru) |
| CH (1) | CH366573A (ru) |
| FR (1) | FR1194035A (ru) |
| GB (1) | GB830021A (ru) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB990138A (en) * | 1960-05-13 | 1965-04-28 | Henry Parks Hutchinson | Improvements in or relating to communications systems |
| US3262116A (en) * | 1964-01-16 | 1966-07-19 | Satellite And Space Comm Syste | Satellite and space communications systems |
| US3263173A (en) * | 1961-07-31 | 1966-07-26 | Gen Electric | Doppler effect compensation |
| GB1028021A (en) * | 1962-01-08 | 1966-05-04 | Post Office | Improvements in or relating to satellite radio communication systems and apparatus therefor |
| US3202960A (en) * | 1962-03-28 | 1965-08-24 | Motorola Inc | Ultrasonic doppler speed measurement device |
| US3182132A (en) * | 1962-07-17 | 1965-05-04 | Bell Telephone Labor Inc | Doppler frequency shift correction of information band frequencies in a suppressed carrier system using a pair of pilot signals |
| US3182131A (en) * | 1962-07-17 | 1965-05-04 | Bell Telephone Labor Inc | Doppler frequency shift correction of information band frequencies in a transmitted carrier system using a single pilot signal |
| US3210666A (en) * | 1962-12-26 | 1965-10-05 | Automatic Elect Lab | Carrier system signalling and synchronization |
| US3317909A (en) * | 1964-04-07 | 1967-05-02 | Richard M Waetjen | Compensation for doppler shift in aerospace communications |
| US3325736A (en) * | 1964-05-19 | 1967-06-13 | Richard M Waetjen | Doppler cancelation system |
| US3970937A (en) * | 1974-12-19 | 1976-07-20 | Motorola, Inc. | Modem for a suppressed carrier communications system |
| DE3887204T2 (de) * | 1987-05-27 | 1994-07-07 | Fujitsu Ltd | Digitales Zweirichtungsfunkübertragungssystem unter Verwendung einer einzigen Frequenz. |
| JPH0422225A (ja) * | 1990-05-17 | 1992-01-27 | Sony Corp | 通信方式 |
| US5669067A (en) * | 1994-06-29 | 1997-09-16 | Harris Corporation | Remotely controllable variable intermediate frequency transceiver |
| JPH08204763A (ja) * | 1994-11-21 | 1996-08-09 | Sony Corp | 送信機及び送受信機 |
| KR100186586B1 (ko) * | 1996-04-25 | 1999-05-15 | 김광호 | 이동 통신시스템의 주파수 발생장치 및 방법 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2528632A (en) * | 1947-03-13 | 1950-11-07 | Smith Meeker Engineering Co | Frequency control system |
| US2653315A (en) * | 1951-02-20 | 1953-09-22 | Rca Corp | Frequency control system for microwave relay terminal stations |
| US2891245A (en) * | 1953-11-02 | 1959-06-16 | John H Coogan | Signal tracking device |
-
1957
- 1957-04-02 GB GB10707/57A patent/GB830021A/en not_active Expired
-
1958
- 1958-03-14 CH CH5704358A patent/CH366573A/de unknown
- 1958-03-28 US US724620A patent/US2974222A/en not_active Expired - Lifetime
- 1958-03-31 FR FR1194035D patent/FR1194035A/fr not_active Expired
- 1958-04-02 BE BE566349D patent/BE566349A/xx unknown
-
1965
- 1965-11-26 BE BE672877D patent/BE672877A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1194035A (ru) | 1959-11-06 |
| BE672877A (ru) | 1966-05-26 |
| CH366573A (de) | 1963-01-15 |
| GB830021A (en) | 1960-03-09 |
| US2974222A (en) | 1961-03-07 |