Patent ID: 9065566
Filing Date: 2015-06-23
Classification: H04B

Abstract:
1. A return path transmitter, comprising: a radio frequency (RF) interface comprising RF inputs; a first RF input received through the RF interface, the first RF input configured to receive one of a first RF return path electrical signal within a 5 MHz to 42 MHz frequency spectrum and a second RF return path electrical signal within a 5 MHz to 85 MHz frequency spectrum; a second optional RF input received through the RF interface, the second optional RF input configured to receive a third RF return path electrical signal within a 5 MHz to 42 MHz frequency spectrum; the RF interface further comprising circuitry configured to perform RF signal conditioning and digitize the RF inputs to present a digitized return path data stream; and digital circuitry comprising a digital filter and processing logic, wherein the digital filter is configured to filter digitized return path channels received from the RF interface, the digital filter filtering the digitized return path channels by one of a first digital filtering function and a second digital filtering function, thereby producing filtered digital return path signals for transmission.