Multi-Tuner Module Shielding Layout for Chip Interference

Solution Overview

Problem

Existing complex tuner modules experience interference between multiple tuner chips, leading to deteriorated image reception quality when receiving both terrestrial and satellite waves, particularly when four tuner chips are mounted in a single module.

Innovation Solution

A complex tuner module design featuring a module substrate with blocking holes and sidewalls to minimize interference between tuner chips, including a chassis part with blocking sidewalls and a cover to shield electromagnetic waves, formed by punching and bending a steel plate to create a structure that supports signal input terminals and fixes the module substrate to a ground electrode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple tuner chips are mounted in a single module to enable simultaneous reception of terrestrial and satellite waves, then the functionality and versatility of the device is improved, but interference between tuner chips occurs leading to deteriorated image reception quality

Engineering Contradiction:

Improvereception capabilityVSAvoidinterference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The module is divided into separate chassis parts, each receiving and shielding individual tuner chips. The chassis structure segments the electromagnetic space around each tuner chip, preventing interference while maintaining the functionality of multiple tuners in a single module.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The chassis part acts as an intermediary shielding structure between tuner chips. It includes blocking sidewalls that physically and electromagnetically separate adjacent tuner chips, preventing direct interference while allowing the module to maintain its integrated functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If four tuner chips are mounted in a single module to enhance functionality, then the versatility is improved, but the interference problem is intensified leading to poor image reception quality

Engineering Contradiction:

Improvechannel reception capabilityVSAvoidinterference

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The module is divided into separate chassis parts, each receiving and shielding individual tuner chips. The chassis structure segments the electromagnetic space around each tuner chip, preventing interference while maintaining the functionality of multiple tuners in a single module.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The chassis part acts as an intermediary shielding structure between tuner chips. It includes blocking sidewalls that physically and electromagnetically separate adjacent tuner chips, preventing direct interference while allowing the module to maintain its integrated functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Volume of moving object

If tuner chips are placed close together in a compact module design, then the device compactness is improved, but interference between tuner chips increases leading to deteriorated reception quality

Engineering Contradiction:

Improvemodule sizeVSAvoidinterference

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The shielding approach extends into the vertical dimension with blocking sidewalls that rise from the substrate between tuner chips. This three-dimensional shielding structure effectively blocks interference paths without requiring increased horizontal spacing between components.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The chassis part acts as an intermediary shielding structure between tuner chips. It includes blocking sidewalls that physically and electromagnetically separate adjacent tuner chips, preventing direct interference while allowing the module to maintain its integrated functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively blocks signal and electromagnetic wave interference between tuner chips, enhancing the reception quality of multiple television channels by allowing simultaneous viewing and recording of terrestrial and satellite broadcasts.

Implementation Method 1

a chassis part connected to the module substrate and having a plurality of blocking sidewalls disposed in spaces between the tuner chips to thereby block interference between the tuner chips

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS8928434B2Complex tuner module

Publication Date: 2015.01.06 SOLUM CO LTD

AI summary

There is provided a complex tuner module including a plurality of tuner chips through which users may simultaneously view and record a plurality of channels. The complex tuner module includes: a module substrate having a plurality of tuner chips mounted thereon; and a chassis part connected to the module substrate and having a plurality of blocking sidewalls disposed in spaces between the tuner chips to thereby block interference between the tuner chips.