CA1202085A - Appareil de decalage aleatoire des frequences pour systeme de transmission simultanee utilisant plusieurs emetteurs - Google Patents
Appareil de decalage aleatoire des frequences pour systeme de transmission simultanee utilisant plusieurs emetteursInfo
- Publication number
- CA1202085A CA1202085A CA000414363A CA414363A CA1202085A CA 1202085 A CA1202085 A CA 1202085A CA 000414363 A CA000414363 A CA 000414363A CA 414363 A CA414363 A CA 414363A CA 1202085 A CA1202085 A CA 1202085A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- noise signal
- frequency
- communications system
- noise
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/80—Wired systems using carrier waves having frequencies in two or more frequency bands, e.g. medium wave and VHF
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2625—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using common wave
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Noise Elimination (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32417281A | 1981-11-23 | 1981-11-23 | |
US324,172 | 1981-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1202085A true CA1202085A (fr) | 1986-03-18 |
Family
ID=23262416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000414363A Expired CA1202085A (fr) | 1981-11-23 | 1982-10-28 | Appareil de decalage aleatoire des frequences pour systeme de transmission simultanee utilisant plusieurs emetteurs |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0094417A1 (fr) |
KR (1) | KR840002782A (fr) |
AR (1) | AR229626A1 (fr) |
CA (1) | CA1202085A (fr) |
IL (1) | IL67120A (fr) |
MX (1) | MX152176A (fr) |
WO (1) | WO1983001878A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2140254B (en) * | 1980-11-21 | 1985-09-25 | Western Electric Co | Mobile radio system |
JP2810569B2 (ja) * | 1991-09-30 | 1998-10-15 | 富士通株式会社 | ページング方式 |
JP2674404B2 (ja) * | 1991-12-13 | 1997-11-12 | 日本電気株式会社 | 基地局カバレッジエリア制御方式 |
GB9219466D0 (en) * | 1992-09-15 | 1992-10-28 | British Broadcasting Corp | Radio transmission systems |
DE4237677C1 (de) * | 1992-11-07 | 1993-11-18 | Ant Nachrichtentech | Verfahren zur Übertragung von Informationen an Verkehrsteilnehmer |
GB2282298B (en) * | 1993-08-27 | 1997-08-13 | Motorola Gmbh | A cell enhancer for simulcast radio transmission |
WO1995010924A1 (fr) * | 1993-10-12 | 1995-04-20 | Ntt Mobile Communications Network Inc. | Procede de transmission multistation et recepteur utilise a cet effet |
CA2338056A1 (fr) * | 1998-07-31 | 2000-02-10 | Ericsson Inc. | Systeme a combinaison en espace libre et a antenne en diversite pour stations cellulaires fixes |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475558A (en) * | 1964-09-01 | 1969-10-28 | Magnavox Co | Time gated pseudonoise multiplexing system |
US3597689A (en) * | 1966-11-14 | 1971-08-03 | Boeing Co | Communication system |
US4231113A (en) * | 1968-03-11 | 1980-10-28 | International Business Machines Corporation | Anti-jam communications system |
US3710313A (en) * | 1971-01-13 | 1973-01-09 | P Kimball | Emergency warning systems |
-
1982
- 1982-10-28 CA CA000414363A patent/CA1202085A/fr not_active Expired
- 1982-10-29 IL IL67120A patent/IL67120A/xx unknown
- 1982-11-10 MX MX195130A patent/MX152176A/es unknown
- 1982-11-12 WO PCT/US1982/001599 patent/WO1983001878A1/fr unknown
- 1982-11-12 EP EP83900128A patent/EP0094417A1/fr not_active Withdrawn
- 1982-11-22 KR KR1019820005265A patent/KR840002782A/ko unknown
- 1982-11-23 AR AR291391A patent/AR229626A1/es active
Also Published As
Publication number | Publication date |
---|---|
IL67120A0 (en) | 1983-02-23 |
IL67120A (en) | 1987-08-31 |
WO1983001878A1 (fr) | 1983-05-26 |
KR840002782A (ko) | 1984-07-16 |
EP0094417A1 (fr) | 1983-11-23 |
AR229626A1 (es) | 1983-09-30 |
MX152176A (es) | 1985-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20030318 |