Headset Charging and Data Transmission via Sine-Wave Modulation
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Solution Overview
Problem
Traditional headsets are bulky due to separate charging and data transmission circuits, necessitating a reduction in circuit complexity to minimize size.
Innovation Solution
A charging and data transmission system that integrates a controller, pulse-to-sine wave converters, and switching devices within a headset and charging device, allowing data transmission on the power rail without additional lines, using sine-wave signals to facilitate both charging and data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate charging circuits and data transmission circuits are used in traditional headsets, then reliable charging and data transmission functions are achieved, but the headset becomes bulky with many contacts
Solution Approach 1:
The patent combines charging and data transmission functions into a single integrated circuit system. The power rail is used for both power delivery and data communication by modulating voltage levels, eliminating the need for separate data transmission circuits and reducing the number of contacts required in the headset.
Solution Approach 2:
The power rail serves multiple functions: it provides both power delivery and data transmission capabilities. By encoding data through voltage level modulation on the power rail, the same physical infrastructure is used for both charging and communication, reducing overall system complexity and headset volume.
2Adaptability or versatility
If separate charging circuits and data transmission circuits are used, then distinct functions are achieved, but the number of contacts increases
Solution Approach 1:
The patent merges charging and data transmission into a single contact interface. The integrated circuit uses voltage level modulation on the power rail to encode data, allowing both power and data to be transmitted through the same physical connection, thereby reducing the number of contacts required.
Solution Approach 2:
The power rail is designed to serve universal purposes: it can deliver power at standard voltage levels and also transmit data through controlled voltage modulation. This multi-functional approach allows a single contact system to replace what would traditionally require separate dedicated contacts for power and data.
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
This integration reduces the volume of the headset by eliminating the need for extra data transmission lines and contacts, enabling simultaneous data transmission during the charging process.
Implementation Method 1
a first pulse-to-sine wave converter, electrically connected to the first controller, and the first pulse-to-sine wave converter is configured to provide a first sine-wave signal and a second sine-wave signal
Data Source
AI summary
The present disclosure provides a headset charging and data transmission system, which includes a headset and a charging device. The charging device includes a first controller, a first connector, a first pulse-to-sine wave converter, a first switching device, and a second switching device. The first pulse-to-sine wave converter provides a first sine wave signal and a second sine wave signal. The first controller controls the second switching device to switch between the first and second sine wave signals to provide first sine wave data to the first switching device, and first controller controls the first switching device load a predetermined voltage with the first sine wave data, so as to output a first sine wave data voltage to the headset.