CA986190A - Radio-frequency relay system - Google Patents
Radio-frequency relay systemInfo
- Publication number
- CA986190A CA986190A CA157,303A CA157303A CA986190A CA 986190 A CA986190 A CA 986190A CA 157303 A CA157303 A CA 157303A CA 986190 A CA986190 A CA 986190A
- Authority
- CA
- Canada
- Prior art keywords
- radio
- relay system
- frequency relay
- frequency
- relay
- 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
- 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
- H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9471671A JPS5412766B2 (en) | 1971-11-24 | 1971-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA986190A true CA986190A (en) | 1976-03-23 |
Family
ID=14117847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA157,303A Expired CA986190A (en) | 1971-11-24 | 1972-11-23 | Radio-frequency relay system |
Country Status (4)
Country | Link |
---|---|
US (1) | US3866121A (en) |
JP (1) | JPS5412766B2 (en) |
CA (1) | CA986190A (en) |
IT (1) | IT971164B (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50104516A (en) * | 1974-01-18 | 1975-08-18 | ||
JPS51100623A (en) * | 1975-03-03 | 1976-09-06 | Nippon Telegraph & Telephone | EISEITSUSHI NHOSHIKI |
JPS5276802A (en) * | 1975-12-22 | 1977-06-28 | Nippon Telegr & Teleph Corp <Ntt> | Transmission line for light fiber repeating |
JPS53148312A (en) * | 1977-05-31 | 1978-12-23 | Fujitsu Ltd | Demodulation system for auxiliary line in direct repeating radio unit |
FR2511772A1 (en) * | 1981-08-24 | 1983-02-25 | Inst Francais Du Petrole | DEVICE FOR SEQUENTIALLY TRANSMITTING RADIO OR CABLE SIGNALS BETWEEN A CENTRAL CONTROL SYSTEM AND DATA ACQUISITION APPARATUSES |
GB2165412B (en) * | 1984-10-05 | 1988-08-10 | Stc Plc | Improvements in optical transmission systems |
GB2222055B (en) * | 1988-08-16 | 1992-10-28 | Plessey Telecomm | Telecommunications transmission security arrangement |
JP2002152215A (en) * | 2000-11-07 | 2002-05-24 | Nec Corp | Wireless communication network and wireless communication system |
EP1391058A4 (en) * | 2001-05-02 | 2006-01-25 | Trex Entpr Corp | Millimeter wave communication link |
US7844273B2 (en) * | 2006-07-14 | 2010-11-30 | Lgc Wireless, Inc. | System for and method of for providing dedicated capacity in a cellular network |
US7848770B2 (en) * | 2006-08-29 | 2010-12-07 | Lgc Wireless, Inc. | Distributed antenna communications system and methods of implementing thereof |
US7817958B2 (en) * | 2006-12-22 | 2010-10-19 | Lgc Wireless Inc. | System for and method of providing remote coverage area for wireless communications |
US8005050B2 (en) * | 2007-03-23 | 2011-08-23 | Lgc Wireless, Inc. | Localization of a mobile device in distributed antenna communications system |
US8010116B2 (en) | 2007-06-26 | 2011-08-30 | Lgc Wireless, Inc. | Distributed antenna communications system |
US9112547B2 (en) * | 2007-08-31 | 2015-08-18 | Adc Telecommunications, Inc. | System for and method of configuring distributed antenna communications system |
JP6504562B2 (en) * | 2015-07-03 | 2019-04-24 | 日本無線株式会社 | Communication diagnostic system and communication diagnostic method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733296A (en) * | 1956-01-31 | Automatic line switching circuits | ||
BE515847A (en) * | 1951-11-28 | |||
NL181541B (en) * | 1953-02-06 | Hermanus Karl Van Deursen | DRIVING LEVEL CONTROL FOR LOW-FREQUENT TRANSISTOR POWER AMPLIFIERS FOR PROTECTION WHEN EXCEEDING AMPLITUDE, CURRENT AND TEMPERATURE LIMITS. | |
US3111624A (en) * | 1960-01-04 | 1963-11-19 | Bell Telephone Labor Inc | Automatic system for selectively substituting spare channels for failed working channels in a multichannel multilink communication system |
BE731482A (en) * | 1968-05-15 | 1969-09-15 |
-
1971
- 1971-11-24 JP JP9471671A patent/JPS5412766B2/ja not_active Expired
-
1972
- 1972-11-21 US US308621A patent/US3866121A/en not_active Expired - Lifetime
- 1972-11-23 IT IT32028/72A patent/IT971164B/en active
- 1972-11-23 CA CA157,303A patent/CA986190A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5412766B2 (en) | 1979-05-25 |
IT971164B (en) | 1974-04-30 |
US3866121A (en) | 1975-02-11 |
JPS4859717A (en) | 1973-08-22 |
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