Apparatus and method for inserting electrical power or control signals into a diplexer circuit

摘要

An apparatus and method for applying signals into a filter circuit is disclosed. The apparatus includes a filter circuit that filters an input signal and outputs a signal in a first frequency range, and a filter circuit that filters the input signal and outputs a signal in a second frequency range that is different from the first frequency range, wherein the second filter circuit includes an interface circuit for inserting a signal used to receive the first frequency range signal. The method includes receiving a signal containing content from a first source in a first frequency range and content from a second source in a second frequency range, providing filtering to produce a signal containing the first content, providing filtering to produce a signal containing the second content, and applying a signal to second content signal processing circuitry, the signal provided used for receiving the content from the first source.

主权项

1. An apparatus comprising:
a first filter circuit that filters an input signal received at the input of the first filter, the input signal containing media program content that is received from a satellite signal service provider and media program content that is received from at least one of a terrestrial signal service provider and a cable signal service provider, the first filter circuit outputting a first output signal that is a portion of the input signal in a first frequency range; and a second filter circuit, the input of the second filter circuit coupled to the input of the first filter circuit, the second filter circuit including a highpass filter and a lowpass filter, the highpass filter including a first portion and a remaining portion, the first portion coupled in series between the input of the first filter circuit and the input of the lowpass filter and the remaining portion coupled in series to the output of the lowpass filter, the highpass filter and low pass filter filtering the input signal and the output of the remaining portion of the highpass filter outputting a second output signal that is a portion of the input signal in a second frequency range, the second frequency range being different than the first frequency range, wherein the second filter circuit includes an interface circuit for inserting a signal that is provided to a device used to receive the portion of the input signal in the first frequency range.