Stylus Single Circuit Synchronized Signal Transmission
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Solution Overview
Problem
Existing styluses with multiple stand-alone circuits are costly, space-consuming, and prone to timing instability, leading to latency issues when interacting with user devices.
Innovation Solution
A stylus design featuring a single stand-alone circuit coupled to both a head and a tail portion, with synchronized signals having identical characteristics, allowing seamless interaction and reducing resource requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple stand-alone circuits are used at each tip, then each tip can independently interact with user devices, but the stylus occupies additional space, consumes additional power, and becomes more expensive
Solution Approach 1:
The patent merges multiple circuit functions into a single stand-alone circuit located at one tip (either head or tail). This single circuit serves both the head portion and tail portion, eliminating the need for separate circuits at each tip. The circuit can dynamically enable or disable signal transmission from different portions based on which tip is currently interacting with the user device, thus providing independent interaction capability without requiring multiple physical circuits.
Solution Approach 2:
The single stand-alone circuit is designed to be universal, capable of serving multiple functions and multiple tips. It can switch between controlling the head portion and controlling the tail portion, making one circuit perform the work of what would traditionally require multiple circuits. This multi-functionality reduces hardware quantity while maintaining adaptability.
2Adaptability or versatility
If multiple stand-alone circuits are used at each tip, then each tip can independently interact with user devices, but timing stability deteriorates due to resistance-capacitance parameters
Solution Approach 1:
By merging the timing control functions into a single circuit, the patent eliminates the timing instability caused by having multiple independent circuits with varying resistance-capacitance parameters. The single circuit provides a unified timing reference that ensures stable and synchronized signal transmission regardless of which tip (head or tail) is currently active, thus improving reliability while maintaining independent interaction capability.
3Device complexity
If a single stand-alone circuit is used for both head and tail portions, then hardware requirements are reduced, but signal synchronization between portions becomes challenging
Solution Approach 1:
The patent implements periodic signal bursts with distinct patterns for the head portion and tail portion. The single stand-alone circuit generates these periodic signals and can selectively enable or disable transmission based on which tip is active. The periodic nature with distinguishable patterns ensures that the user device can reliably identify which tip is transmitting, maintaining signal timing reliability while using a single circuit.
Solution Approach 2:
The patent applies local quality by giving each tip (head and tail) distinct signal characteristics or patterns. Even though a single circuit controls both, each portion transmits with locally differentiated properties (such as different signal patterns or timing characteristics), allowing the user device to distinguish which tip is currently interacting. This differentiation maintains signal timing reliability without requiring multiple circuits.
Data Source
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AI summary
Examples of the disclosure enable a stylus to include a plurality of portions configured to transmit synchronized signals. In some examples, the stylus includes a first portion configured to transmit a first signal in a first pattern, and a second portion configured to transmit a second signal in a second pattern different from the first pattern such that the second signal is distinguishable from the first signal. On receiving the first signal, a user device is configured to provide a first functionality and, on receiving the second signal, the user device is configured to provide a second functionality. Examples of the disclosure enable the stylus to include a plurality of portions configured to interact with a user device in an efficient and/or cost-effective manner.