FR2254915A1 - Combined radio transmitter-receiver - has contactless switch connecting dual purpose antenna - Google Patents
Combined radio transmitter-receiver - has contactless switch connecting dual purpose antennaInfo
- Publication number
- FR2254915A1 FR2254915A1 FR7441316A FR7441316A FR2254915A1 FR 2254915 A1 FR2254915 A1 FR 2254915A1 FR 7441316 A FR7441316 A FR 7441316A FR 7441316 A FR7441316 A FR 7441316A FR 2254915 A1 FR2254915 A1 FR 2254915A1
- Authority
- FR
- France
- Prior art keywords
- receiver
- radio transmitter
- dual purpose
- contactless switch
- switch connecting
- 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.)
- Granted
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
- H04B1/38—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
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732362889 DE2362889A1 (de) | 1973-12-18 | 1973-12-18 | Funk-sende/empfangsgeraet |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2254915A1 true FR2254915A1 (en) | 1975-07-11 |
FR2254915B3 FR2254915B3 (fr) | 1977-09-16 |
Family
ID=5901127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7441316A Granted FR2254915A1 (en) | 1973-12-18 | 1974-12-16 | Combined radio transmitter-receiver - has contactless switch connecting dual purpose antenna |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2362889A1 (fr) |
FR (1) | FR2254915A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2544503A1 (fr) * | 1983-04-15 | 1984-10-19 | Snecma | Dispositif de decouplage des voies emission et reception dans un radar a antenne unique |
EP0151014A2 (fr) * | 1984-01-27 | 1985-08-07 | Nec Corporation | Emetteur-récepteur radio comportant un circuit de commutation d'alimentation d'antenne |
EP0767542A2 (fr) * | 1995-10-05 | 1997-04-09 | Daimler-Benz Aktiengesellschaft | Commutateur émission/réception |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055807A (en) * | 1976-03-25 | 1977-10-25 | Motorola, Inc. | Antenna switch |
DE3844541C2 (de) * | 1987-09-30 | 1995-06-08 | Fujitsu Ten Ltd | Antennenschaltung für eine Multiband-Antenne |
US5258728A (en) * | 1987-09-30 | 1993-11-02 | Fujitsu Ten Limited | Antenna circuit for a multi-band antenna |
KR910005602A (ko) * | 1989-08-12 | 1991-03-30 | 강진구 | 이동체 통신장비의 rf송수신회로 |
DK164336C (da) * | 1990-02-19 | 1992-11-02 | Karsten Gyde Pilested | Sikringssystem til at overvaage emners, f.eks. varers, passage forbi bestemte zoner |
DE9115204U1 (fr) * | 1991-12-07 | 1992-05-27 | Rr Elektronische Geraete Gmbh + Co Kg, 2300 Kiel, De | |
DE19638597A1 (de) * | 1996-09-20 | 1998-03-26 | Bosch Gmbh Robert | Antennenanordnung |
DE19948964C2 (de) * | 1999-10-11 | 2001-10-04 | Texas Instruments Deutschland | Schaltungsanordnung zum Herstellen einer unidirektionalen Verbindung zwischen Sende- und/oder Empfangsgeräten und einer Antenne |
-
1973
- 1973-12-18 DE DE19732362889 patent/DE2362889A1/de active Pending
-
1974
- 1974-12-16 FR FR7441316A patent/FR2254915A1/fr active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2544503A1 (fr) * | 1983-04-15 | 1984-10-19 | Snecma | Dispositif de decouplage des voies emission et reception dans un radar a antenne unique |
EP0122854A1 (fr) * | 1983-04-15 | 1984-10-24 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." | Dispositif de découplage des voies émission et réception dans un radar à antenne unique |
EP0151014A2 (fr) * | 1984-01-27 | 1985-08-07 | Nec Corporation | Emetteur-récepteur radio comportant un circuit de commutation d'alimentation d'antenne |
EP0151014A3 (en) * | 1984-01-27 | 1985-08-21 | Nec Corporation | Radio transceiver including an antenna switching circuit |
EP0767542A2 (fr) * | 1995-10-05 | 1997-04-09 | Daimler-Benz Aktiengesellschaft | Commutateur émission/réception |
EP0767542A3 (fr) * | 1995-10-05 | 2001-04-18 | DaimlerChrysler AG | Commutateur émission/réception |
Also Published As
Publication number | Publication date |
---|---|
FR2254915B3 (fr) | 1977-09-16 |
DE2362889A1 (de) | 1975-06-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |