Headset Control Interface Using Touch and Pressure Sensing

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Solution Overview

Problem

Conventional headset controllers require multiple sensing blocks to generate control instructions, limiting flexibility and convenience in operation, especially under limited space.

Innovation Solution

A headset controller integrating touch and pressure sensors, where each sensing block can generate multiple control instructions by combining touch and pressure sensor inputs, reducing the number of required sensing blocks and enhancing operational flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple sensing blocks are used to generate control instructions, then the control functionality is improved, but the device complexity and space occupation increase

Engineering Contradiction:

Improvecontrol functionalityVSAvoidnumber of sensing blocks

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Each sensing block integrates both touch sensor and pressure sensor capabilities, allowing a single sensing block to perform multiple sensing functions. The touch sensor detects touch events while the pressure sensor detects pressing events, enabling one sensing block to generate multiple different control instructions (touch vs. press operations) rather than requiring separate sensing blocks for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines touch sensing and pressure sensing capabilities within the same sensing block structure. The touch sensor and pressure sensor are integrated at the same location, allowing the system to differentiate between light touch and firm press actions, thereby multiplying the control instructions that can be generated from each physical sensing block.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If multiple sensing blocks are used to generate control instructions, then the control functionality is improved, but the space occupation increases

Engineering Contradiction:

Improvecontrol functionalityVSAvoidspace occupation

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent adds a pressure dimension to the traditional touch sensing interface. By incorporating pressure sensors alongside touch sensors, the system creates an additional sensing dimension that allows differentiation between light touch and firm press actions, effectively doubling the control capabilities without requiring additional physical space for separate sensing blocks.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If touch and pressure sensors are integrated in the same sensing block, then the operational flexibility is enhanced, but the sensing precision requirements increase

Engineering Contradiction:

Improveoperational flexibilityVSAvoidsensing precision

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The sensing block is segmented into two distinct sensing components: a touch sensor for detecting touch events and a pressure sensor for detecting pressing events. This segmentation allows each sensor type to be optimized for its specific function while working together within the same physical block, maintaining precision for each sensing modality while achieving operational flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different sensing mechanisms are applied at different locations within the sensing block structure. The touch sensor and pressure sensor are positioned at the same location but operate independently with different sensing thresholds and detection mechanisms, allowing each to maintain its own precision characteristics while contributing to overall operational flexibility.

Inventive Principle:

Principle #3Local quality

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 integration of touch and pressure sensors allows for the generation of four control instructions using only two sensing blocks, enhancing user convenience and flexibility in operation while optimizing the use of limited space.

Implementation Method 1

a first touch sensor, wherein the first driving line is intersected with the first sensing line by the first touch sensor

Methodology Applied

Scientific EffectCapacitive sensing: Capacitance

Implementation Method 2

a first pressure sensor, wherein the first driving line is intersected with a second sensing line by the first pressure sensor

Methodology Applied

Scientific EffectCapacitive pressure sensing: Capacitance

Data Source

PatentUS11122355B2Headset controller

Publication Date: 2021.09.14 PIXART IMAGING INC

AI summary

A headset controller takes a first touch sensor, a second touch sensor, a first pressure sensor, and a second pressure sensor as a control medium for users. The headset controller can generate four different output instructions by the users touching or pressing the operating interface. The headset controller integrates various sensing methods to generate the needed output instructions.