GB2237704B - Radio communication apparatus - Google Patents
Radio communication apparatusInfo
- Publication number
- GB2237704B GB2237704B GB8922852A GB8922852A GB2237704B GB 2237704 B GB2237704 B GB 2237704B GB 8922852 A GB8922852 A GB 8922852A GB 8922852 A GB8922852 A GB 8922852A GB 2237704 B GB2237704 B GB 2237704B
- Authority
- GB
- United Kingdom
- Prior art keywords
- radio communication
- communication apparatus
- radio
- communication
- 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 - Fee Related
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
- H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8922852A GB2237704B (en) | 1989-10-11 | 1989-10-11 | Radio communication apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8922852A GB2237704B (en) | 1989-10-11 | 1989-10-11 | Radio communication apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8922852D0 GB8922852D0 (en) | 1989-11-29 |
GB2237704A GB2237704A (en) | 1991-05-08 |
GB2237704B true GB2237704B (en) | 1994-02-23 |
Family
ID=10664372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8922852A Expired - Fee Related GB2237704B (en) | 1989-10-11 | 1989-10-11 | Radio communication apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2237704B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2271247B (en) * | 1992-10-05 | 1997-02-19 | Motorola Israel Ltd | A radio telephone for a vehicle |
KR100310342B1 (en) | 1999-07-21 | 2001-11-01 | 윤종용 | Method for switching the transmission/receipt state of voice signal in case of the speaker-phone mode in a mobile phone |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1021347A (en) * | 1962-02-21 | 1966-03-02 | Standard Telephones Cables Ltd | Audio actuated switches |
US4366578A (en) * | 1981-02-19 | 1982-12-28 | Foster Airdata Systems Inc. | Transmit/receive mode protection arrangement |
US4392244A (en) * | 1980-02-29 | 1983-07-05 | Pilot Mannenhitsu Kabushiki Kaisha | Automatic transmission and reception control system |
WO1985001411A1 (en) * | 1983-09-14 | 1985-03-28 | Keller, René | Telephone transmission installation |
-
1989
- 1989-10-11 GB GB8922852A patent/GB2237704B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1021347A (en) * | 1962-02-21 | 1966-03-02 | Standard Telephones Cables Ltd | Audio actuated switches |
US4392244A (en) * | 1980-02-29 | 1983-07-05 | Pilot Mannenhitsu Kabushiki Kaisha | Automatic transmission and reception control system |
US4366578A (en) * | 1981-02-19 | 1982-12-28 | Foster Airdata Systems Inc. | Transmit/receive mode protection arrangement |
WO1985001411A1 (en) * | 1983-09-14 | 1985-03-28 | Keller, René | Telephone transmission installation |
Also Published As
Publication number | Publication date |
---|---|
GB2237704A (en) | 1991-05-08 |
GB8922852D0 (en) | 1989-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19941011 |