Telecommunications – Carrier wave repeater or relay system – Monitoring
Patent
1988-03-23
1990-11-20
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
Monitoring
455 21, 455 22, 455 33, H04B 714
Patent
active
049723464
ABSTRACT:
A high-frequency signal booster which has at least one channel unit including a down-converter for converting input signals into intermediate-frequency signals and an up-converter for converting time into output signals. The respective up- and down-converters are separately equipped with station-originating signal oscillators. Further, the station-originating signal oscillator provided for the up-converter has a function of effecting the modulation with out-of-voice-band signals.
REFERENCES:
patent: 4754495 (1988-06-01), Kawano et al.
patent: 4764979 (1988-08-01), Noguchi et al.
patent: 4849963 (1989-07-01), Kawano et al.
Cellular Business Jul. 1986, pp. 40 and 42, Cell Enhancer: Beyond the Outer Limits by Amy Rosenbloom and Jim Ferguson.
Cellular Business Jan. 1987, p. 38.
The Cell Enhancer by Edwin W. Quinn (Bell Atlantic Mobile System), 1986 IEEE pp, 77.about.83.
FCC Requirements for Type Accepting Radio Boosters and Licensing Distributed Antenna Systems, by Franklin Coperich (FCC Authorisation and Standards Division) and Charles F. Turner (FCC Rules Division) 1982 IEEE pp. 247.about.254.
Kawano Minori
Mihashi Koji
Eisenzopf Reinhard J.
Kuntz Curtis
Mitsubishi Denki & Kabushiki Kaisha
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