Signal power reduction systems and methods
AssigneeCable Television Laboratories, Inc.
InventorsThomas H. Williams, Gregory Charles White
Life of this patent
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Abstract
A method of reducing transmission power for an encoded data stream includes the steps of receiving an incoming data stream having equal probability for a plurality of incoming data bits, assigning a symbol scheme to the received data bits of the incoming data stream according to probabilities of occurrence of individual ones of the received data bits, and transmitting an outgoing data stream according to the assigned symbol scheme having a second average transmit power, different than the first average transmit power, for a plurality of outgoing symbols.
Claims25
A signal transmission system for reducing transmission power for an encoded data stream, comprising:
- a receiver configured to receive an incoming data stream having a first average transmit power for a plurality of incoming data bits;
- a symbol scheme processor configured to assign a symbol scheme, implementing a non-uniform number of bits per symbol, to at least a portion of the incoming data bits according to probabilities of occurrence of the incoming data bits;
- a memory communicatively coupled to the symbol scheme processor and the receiver for storing the incoming data stream;
- and
- a transmitter configured to transmit an outgoing data stream comprising a plurality of outgoing symbols according to the assigned symbol scheme at a second average transmit power.
A method of reducing transmission power for an encoded data stream comprising the steps of:
- receiving an incoming data stream having a first average transmit power for a plurality of incoming data bits;
- assigning a symbol scheme, implementing a non-uniform number of bits per symbol, to at least a portion of the incoming data bits according to probabilities of occurrence of the incoming data bits;
- and
- transmitting an outgoing data stream comprising a plurality of outgoing symbols according to the assigned symbol scheme at a second average transmit power.
Dependencies are inferred from the claim text.