| US 7,522,875 B1 | ||
| Signal selector and combiner system for broadband content distribution | ||
| Itzhak Gurantz, San Diego, Calif. (US); Ladd El Wardani, La Jolla, Calif. (US); and Michael Landry, San Diego, Calif. (US) | ||
| Assigned to Entropic Communications Inc., San Diego, Calif. (US) | ||
| Filed on Dec. 31, 2004, as Appl. No. 11/27,999. | ||
| Int. Cl. H04H 1/00 (2006.01) | ||
| U.S. Cl. 455—3.01 [455/3.02; 455/3.04; 455/179.1; 455/189.1; 725/71; 725/78] | 37 Claims |
| 1. A signal distribution system, comprising:
a signal selector capable of receiving at least one wideband signal, where the wideband signal comprises a plurality of narrowband
signals;
a first, first-conversion local oscillator and frequency converter that is capable of shifting the at least one wideband signal
to a first desired frequency;
a first filter capable of selecting a first desired narrow band signal;
a first, second-conversion local oscillator and frequency converter that converts the selected narrowband signal in order
to produce a first RF signal;
a second, first-conversion local oscillator and frequency converter that is capable of shifting the at least one wideband
signal to a second desired frequency;
a second filter capable of selecting a second desired narrowband signal;
a second, second-conversion, local oscillator and frequency converter that converts the second selected narrowband signal
in order to produce a second RF signal; and
a signal combiner electronically connected to the first, second conversion frequency converter and the second, second conversion
frequency converter that is capable of combining the first RF signal with the second RF signal in order to produce a composite
RF signal.
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