Telecommunications – Carrier wave repeater or relay system – With transmission line
Patent
1997-06-10
1998-06-09
Vo, Nguyen
Telecommunications
Carrier wave repeater or relay system
With transmission line
455 22, 455209, 455316, 455318, H04B 126, H04B 358
Patent
active
057650993
ABSTRACT:
A system and method for transmitting a radio frequency (RF) signal in a RF bandwidth over a low bandwidth medium, e.g., in-building cabling, which has a transmission bandwidth below the RF bandwidth. The system has a unit for receiving the RF signal and a global reference oscillator for distributing a global reference tone of high stability to the entire system. Local oscillators are controlled by adjustment signals derived from this global reference tone to deliver RF reference tones of high stability required for mixing the RF signal to obtain an intermediate frequency (IF) signal which is fed through the low bandwidth medium. The global reference tone is preferably delivered through the same low bandwidth medium to desired locations, such as remote coverage sites in a network for cellular communications, cordless telephony, local RF communications, interactive multi-media video, high bit-rate local communications.
REFERENCES:
patent: 2671850 (1954-03-01), Marcou
patent: 2747083 (1956-05-01), Guanella
patent: 4063173 (1977-12-01), Nelson et al.
patent: 4186347 (1980-01-01), Brockman et al.
patent: 4417279 (1983-11-01), Shinkawa et al.
patent: 4449246 (1984-05-01), Seiler et al.
patent: 4476574 (1984-10-01), Struven
patent: 4500976 (1985-02-01), DuBroff
patent: 4556988 (1985-12-01), Yoshisato
patent: 4856085 (1989-08-01), Horvat
patent: 4901368 (1990-02-01), Arnold et al.
patent: 4959862 (1990-09-01), Davidov et al.
patent: 5046135 (1991-09-01), Hatcher
patent: 5109532 (1992-04-01), Petrovic et al.
patent: 5361407 (1994-11-01), Sawada et al.
patent: 5404570 (1995-04-01), Charas et al.
patent: 5428836 (1995-06-01), Sanecki et al.
patent: 5603080 (1997-02-01), Kallander et al.
Cutrer David M.
Georges John B.
Lau Kam Y.
Bhattacharya Sam
Vo Nguyen
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