Patent ID: 11968001
Assignee: CABLE TELEVISION LABORATORIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A symbol retransmission apparatus, comprising:
an input configured to receive an incoming stream of symbols according to a first symbol scheme;
an output configured to transmit an outgoing stream of symbols according to a second symbol scheme different from the first symbol scheme;, a processor disposed between the input and the output; and, a memory including computer executable instruction, which, when executed the processor, cause the processor to:
map the incoming stream of symbols onto the outgoing stream of symbols according to the second symbol scheme; and
transmit the outgoing stream of symbols, wherein the outgoing stream of symbols contains (i) a first number of first symbols each requiring a first amplitude for transmission, and (ii) a second number of second symbols each requiring a second amplitude for transmission,, wherein the first amplitude is greater than the second amplitude, and, wherein the second number is greater than the first number.