Optical Sensor Calibration via Charging Box Command

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Solution Overview

Problem

Conventional methods for calibrating optical sensors in Bluetooth headsets are inefficient and costly, as they require additional hardware for communication with a computer, leading to increased costs and potential disturbances during the calibration process.

Innovation Solution

A method utilizing a charging box with a command initiation device and a command transmission medium to send calibration commands to the optical sensor in the Bluetooth headset, allowing for calibration without additional hardware costs, using existing charging lines and ground lines for command transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the Bluetooth headset is wirelessly connected to a computer for calibration, then the calibration operation can be performed, but the calibration is easily disturbed and efficiency is low

Engineering Contradiction:

Improvecalibration stabilityVSAvoidcalibration efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent introduces a charging box as an intermediary device that mediates the calibration process. Instead of direct wireless connection between headset and computer, the charging box receives calibration commands from the computer via Bluetooth and transmits them to the headset through wired connection, isolating the calibration process from wireless interference

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the wireless communication mechanism with a wired mechanical connection for the calibration process. The charging box uses physical contact through charging pins to transmit calibration commands, substituting the unstable wireless signal with a reliable wired connection during calibration

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If additional hardware is integrated into the Bluetooth headset for communicating with the computer, then calibration can be performed, but costs are increased

Engineering Contradiction:

Improvecalibration capabilityVSAvoidhardware cost

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The charging box serves multiple functions: it acts as a charging device for the headset and simultaneously serves as a calibration initiation device. By integrating the calibration function into the existing charging box, the patent avoids the need for additional dedicated calibration hardware in the headset

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The headset uses its existing charging interface and internal resources to perform calibration. The command execution device within the headset utilizes the wired connection already present for charging, eliminating the need for separate calibration hardware and reducing overall system complexity

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11480708B2Method for calibrating optical sensor in bluetooth headset and bluetooth headset

Publication Date: 2022.10.25 SHENZHEN CANNICE TECH

AI summary

A method for calibrating an optical sensor in a Bluetooth headset and a Bluetooth headset are provided. The Bluetooth headset includes an optical sensor and a command execution device, the Bluetooth headset is connected to a charging box which is adapted to the Bluetooth headset, and a command initiation device and a command transmission medium are arranged in the charging box. With the method, if the command initiation device is triggered, the command initiation device sends a calibration command to the command execution device via the command transmission medium; and the command execution device calibrates an optical sensor in response to the calibration command to obtain a calibration result, and stores the calibration result.