Triplexer Front Module for MoCA and Cable Signal Processing
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Solution Overview
Problem
Existing set top box designs face challenges in matching a triplexer with a low-noise amplifier for cable and a low-noise amplifier/power amplifier for MoCA, leading to difficulties in signal noise removal and amplification.
Innovation Solution
A front module is developed that embeds a triplexer with a transceiver for MoCA, which includes a low-noise amplifier and power amplifier, along with a receiver for cable, to manage and distribute MoCA and cable broadcasting signals effectively, using baluns and circulators to optimize signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a triplexer is separately selected and used regardless of close connection with the set top box, then the set top box can be assembled with independent components, but it is difficult to match the triplexer with a low-noise amplifier for cable and a low-noise amplifier/power amplifier for MoCA at the time of designing the set top box
Solution Approach 1:
The patent combines the triplexer with the low-noise amplifier for cable and low-noise amplifier/power amplifier for MoCA into an integrated front module. This merging eliminates the matching difficulties between separate components while maintaining assembly flexibility, as the integrated module is designed as a unified unit that can be installed as a single component in the set top box.
2Reliability
If the triplexer is integrated with amplifiers in a front module, then signal noise removal and amplification are optimized, but the device complexity increases
Solution Approach 1:
The patent segments the set top box into distinct functional modules, with the front module being one such segment that handles signal reception, filtering, and amplification. By creating this separate, self-contained front module with integrated triplexer and amplifiers, the complexity is localized to a manageable unit rather than distributed throughout the entire device, making the overall system easier to design and maintain.
Data Source
AI summary
Disclosed herein is a front module having a triplexer. According to a preferred embodiment of the present invention, the front module includes: a triplexer receiving and distributing a MoCA receiving signal and a cable broadcasting signal from a coaxial cable and receiving the MoCA transmitting signal and outputting the received MoCA transmitting signal to the coaxial cable; a transceiver for MoCA removing and outputting noise from the MoCA receiving signal input through the triplexer and amplifying the MoCA transmitting signal input from the outside and providing the amplified MoCA transmitting signal to the triplexer; and a receiver for cable removing and outputting noise from the cable broadcasting signal input through the triplexer.