DE2251742C2 - Mehrkanaliges Sprechfunkgerät - Google Patents
Mehrkanaliges SprechfunkgerätInfo
- Publication number
- DE2251742C2 DE2251742C2 DE19722251742 DE2251742A DE2251742C2 DE 2251742 C2 DE2251742 C2 DE 2251742C2 DE 19722251742 DE19722251742 DE 19722251742 DE 2251742 A DE2251742 A DE 2251742A DE 2251742 C2 DE2251742 C2 DE 2251742C2
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- conditional
- channel
- receiving
- way 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
Links
- 239000013078 crystal Substances 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000010453 quartz Substances 0.000 claims 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722251742 DE2251742C2 (de) | 1972-10-21 | 1972-10-21 | Mehrkanaliges Sprechfunkgerät |
| NL7308568A NL7308568A (enExample) | 1972-10-21 | 1973-06-20 | |
| AT593873A AT345898B (de) | 1972-10-21 | 1973-07-05 | Sprechfunkgeraet |
| CH1008373A CH552309A (de) | 1972-10-21 | 1973-07-11 | Sprechfunkgeraet. |
| FR7337448A FR2204091B1 (enExample) | 1972-10-21 | 1973-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722251742 DE2251742C2 (de) | 1972-10-21 | 1972-10-21 | Mehrkanaliges Sprechfunkgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2251742A1 DE2251742A1 (de) | 1974-05-02 |
| DE2251742C2 true DE2251742C2 (de) | 1984-08-16 |
Family
ID=5859704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722251742 Expired DE2251742C2 (de) | 1972-10-21 | 1972-10-21 | Mehrkanaliges Sprechfunkgerät |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT345898B (enExample) |
| CH (1) | CH552309A (enExample) |
| DE (1) | DE2251742C2 (enExample) |
| FR (1) | FR2204091B1 (enExample) |
| NL (1) | NL7308568A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152333B (en) * | 1983-12-27 | 1988-02-03 | United Technologies Corp | Full-duplex, electrically switched microwave transceiver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT941760B (it) * | 1971-11-20 | 1973-03-10 | Gte International Inc | Generatore di frequenza per rice trasmettitore a modulazione di frequenza in vhf operante su piu canali rf |
-
1972
- 1972-10-21 DE DE19722251742 patent/DE2251742C2/de not_active Expired
-
1973
- 1973-06-20 NL NL7308568A patent/NL7308568A/xx not_active Application Discontinuation
- 1973-07-05 AT AT593873A patent/AT345898B/de not_active IP Right Cessation
- 1973-07-11 CH CH1008373A patent/CH552309A/xx not_active IP Right Cessation
- 1973-10-19 FR FR7337448A patent/FR2204091B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT345898B (de) | 1978-10-10 |
| DE2251742A1 (de) | 1974-05-02 |
| NL7308568A (enExample) | 1974-04-23 |
| ATA593873A (de) | 1978-02-15 |
| FR2204091A1 (enExample) | 1974-05-17 |
| FR2204091B1 (enExample) | 1979-01-05 |
| CH552309A (de) | 1974-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OF | Willingness to grant licences before publication of examined application | ||
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |