GB1402458A - Transmission systems - Google Patents
Transmission systemsInfo
- Publication number
- GB1402458A GB1402458A GB4154672A GB4154672A GB1402458A GB 1402458 A GB1402458 A GB 1402458A GB 4154672 A GB4154672 A GB 4154672A GB 4154672 A GB4154672 A GB 4154672A GB 1402458 A GB1402458 A GB 1402458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- time
- compressed
- signal
- sections
- time section
- 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
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 241000282461 Canis lupus Species 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/18—Time-division multiplex systems using frequency compression and subsequent expansion of the individual signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/10—Arrangements for reducing cross-talk between channels
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Television Systems (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Time-Division Multiplex Systems (AREA)
- Noise Elimination (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2144638A DE2144638B2 (de) | 1971-09-07 | 1971-09-07 | Verfahren zur Verringerung der Störsignale bei der Übertragung von NF-Signalen in zeitkomprimierter Form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1402458A true GB1402458A (en) | 1975-08-06 |
Family
ID=5818835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4154672A Expired GB1402458A (en) | 1971-09-07 | 1972-09-07 | Transmission systems |
Country Status (16)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600941A (en) * | 1982-12-17 | 1986-07-15 | Sony Corporation | Scrambling system for audio frequency signals |
| US4605961A (en) * | 1983-12-22 | 1986-08-12 | Frederiksen Jeffrey E | Video transmission system using time-warp scrambling |
| US4673975A (en) * | 1983-11-09 | 1987-06-16 | Nec Corporation | Television signal scrambling apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229828A (en) * | 1977-12-23 | 1980-10-21 | Hughes Aircraft Company | Bi-mode millimeter wave mixer |
| US4340975A (en) * | 1979-10-09 | 1982-07-20 | Matsushita Electric Industrial Company, Limited | Microwave mixing circuit and a VHF-UHF tuner having the mixing circuit |
| JPS56129375U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1980-03-04 | 1981-10-01 | ||
| US4429417A (en) | 1980-07-07 | 1984-01-31 | Yool George M | Integrated antenna, amplifier and converter for microwave frequencies |
| US4677693A (en) * | 1985-01-25 | 1987-06-30 | Alps Electric Co., Ltd. | Frequency conversion circuit |
| JP3142220B2 (ja) * | 1995-03-30 | 2001-03-07 | シャープ株式会社 | チューナ |
-
0
- BE BE788482D patent/BE788482A/nl unknown
-
1971
- 1971-09-07 DE DE2144638A patent/DE2144638B2/de active Pending
-
1972
- 1972-08-28 AT AT740572A patent/AT315261B/de not_active IP Right Cessation
- 1972-09-01 ZA ZA726005A patent/ZA726005B/xx unknown
- 1972-09-06 SE SE7211468A patent/SE373258B/xx unknown
- 1972-09-06 DK DK437972A patent/DK131839C/da active
- 1972-09-06 NL NL7212146A patent/NL7212146A/xx unknown
- 1972-09-06 ES ES406446A patent/ES406446A1/es not_active Expired
- 1972-09-06 IT IT28831/72A patent/IT982452B/it active
- 1972-09-06 BR BR006181/72A patent/BR7206181D0/pt unknown
- 1972-09-06 CH CH1306972A patent/CH545559A/xx not_active IP Right Cessation
- 1972-09-07 GB GB4154672A patent/GB1402458A/en not_active Expired
- 1972-09-07 FR FR7231678A patent/FR2152704A1/fr not_active Withdrawn
- 1972-09-07 AU AU46439/72A patent/AU4643972A/en not_active Expired
- 1972-09-07 JP JP47089167A patent/JPS5135814B2/ja not_active Expired
- 1972-11-20 US US00308225A patent/US3823380A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4600941A (en) * | 1982-12-17 | 1986-07-15 | Sony Corporation | Scrambling system for audio frequency signals |
| US4673975A (en) * | 1983-11-09 | 1987-06-16 | Nec Corporation | Television signal scrambling apparatus |
| US4605961A (en) * | 1983-12-22 | 1986-08-12 | Frederiksen Jeffrey E | Video transmission system using time-warp scrambling |
Also Published As
| Publication number | Publication date |
|---|---|
| US3823380A (en) | 1974-07-09 |
| ES406446A1 (es) | 1975-07-16 |
| NL7212146A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-03-09 |
| BE788482A (nl) | 1973-03-07 |
| DE2144638A1 (de) | 1973-03-22 |
| BR7206181D0 (pt) | 1973-08-30 |
| JPS5135814B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-10-05 |
| DE2144638B2 (de) | 1974-07-11 |
| ZA726005B (en) | 1973-05-30 |
| AU4643972A (en) | 1974-03-14 |
| DK131839C (da) | 1976-02-09 |
| FR2152704A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-04-27 |
| IT982452B (it) | 1974-10-21 |
| CH545559A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-01-31 |
| AT315261B (de) | 1974-05-27 |
| SE373258B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-01-27 |
| JPS4873012A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-10-02 |
| DK131839B (da) | 1975-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |