System for enhancing the performance of a CATV settop terminal

Details System for enhancing the performance of a CATV settop terminal System for enhancing the performance of a CATV settop terminal

1997-04-28

2000-01-11

Miller, John W.

Telecommunications

Interference signal transmission

348 10, 348 11, 348731, 455266, 4552341, 4551801, 4551881, 455307, H04H 102, H04B 110, H04N 710, H04N 550

Patent

active

060145471

ABSTRACT:
A system for use with a CATV settop terminal measures the input RF carrier signal power level at several frequencies within the CATV RF input bandwidth upon system power-up. The system utilizes these measurements to selectively equalize and process the RF input signal depending upon the carrier frequency selected and the desired signal level to be input to the RF tuner. The system refines the signal level by specifically measuring the signal level of the selected carrier frequency. The system further improves RF tuner performance by dynamically limiting the bandwidth input to the RF tuner depending upon the selected carrier frequency.

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