Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
Patent
1995-08-07
1998-04-28
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency or phase modulation
455258, 455303, 330126, H04B 116
Patent
active
057458464
ABSTRACT:
Disclosed is a channelized multi-carrier signal processor capable of equalizing power levels of individual carriers of a multi-carrier signal to within a predetermined dynamic range. In one embodiment, the signal processor includes a power splitter for splitting a multi-carrier input signal into a plurality of electrical paths. In each electrical path there resides a signal modifier that is operable to isolate signal energy associated with a given carrier of the multi-carrier signal. Each signal modifier includes an automatic gain control (AGC) circuit to control the power level of the carrier isolated therein to within a predetermined power level window so that the isolated carriers of each signal modifier are equalized in power. A power combiner then combines the equalized carriers to produce a multi-carrier output signal, which can be applied to a limited dynamic range device such as an A/D converter. Preferably, the carriers are isolated with the use of a tunable frequency synthesizer and a down-converting mixer within each signal modifier. This arrangement provides flexibility as to the frequencies which can be used for the modulated carriers of the multi-carrier input signal.
REFERENCES:
patent: 4509206 (1985-04-01), Carpe et al.
patent: 5222106 (1993-06-01), Satoh et al.
patent: 5287543 (1994-02-01), Wockstein
patent: 5289464 (1994-02-01), Wang
patent: 5300894 (1994-04-01), Myer et al.
patent: 5302914 (1994-04-01), Arntz et al.
patent: 5304945 (1994-04-01), Myer
patent: 5530920 (1996-06-01), Takeda
"Microwave Frequency Selective Limiting Filter", GEC-Marconi Research Center Catalog, Nov. 1992.
Myer Robert Evan
Wen Jack Chi-Chieh
Lucent Technologies - Inc.
Urban Edward F.
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