Receiver Timing Control for Shutter Glasses
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Solution Overview
Problem
Conventional 3D video display systems face delays in generating control signals for shutter glasses due to data analysis processing, leading to timing inaccuracies and increased power consumption, especially in portable devices like 3D glasses.
Innovation Solution
A wireless communication system with a receiver that includes a communication device and a control circuit capable of analyzing data for a reference timing signal pattern, using a timer to generate control signals without delay and reducing power consumption by distributing load operations outside the communication device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data analysis processing is performed in the communication device to identify reference timing signal patterns, then accurate timing detection is achieved, but processing delay and increased power consumption occur
Solution Approach 1:
The patent applies preliminary action by having the communication device continuously monitor and identify reference timing signal patterns in advance, so that when the timer generates control signals, the timing information is already prepared and available, eliminating processing delays during the critical timing generation phase
Solution Approach 2:
The patent segments the processing functions by separating data analysis (performed by the communication device) from timer control (performed by the timer means), allowing each component to optimize its specific function independently and reducing overall processing time through functional decomposition
2Speed
If high-speed CPU operations are used for data analysis and control signal generation, then processing speed is improved, but power consumption increases significantly
Solution Approach 1:
The patent applies self-service by enabling the timer means to autonomously generate control signals based on its own internal clock counting, without requiring continuous high-speed CPU intervention. The timer means serves itself by using the reference timing information to automatically control the display device, significantly reducing power consumption while maintaining processing speed
3Measurement precision
If the timer counts from initial value to interval value to generate control signals, then timing accuracy is maintained, but unnecessary clock counting increases power consumption
Solution Approach 1:
The patent applies dynamics by making the timer's initial value adjustable rather than fixed. When reference timing signal patterns are identified, the initial value is changed to reduce unnecessary clock counting. This dynamic adjustment allows the system to maintain timing accuracy when needed while reducing power consumption during normal operation
Data Source
AI summary
A receiver allows controlling a device to be controlled such as a display device based on reference timing acquired from reception data without delay and with low power consumption, and includes: a communication device receiving data incoming intermittently; a first control circuit analyzing the data received by the communication device to identify the presence of a predetermined reference timing signal pattern in the data; and a timer for counting a clock from an initial value, generating a control signal for the device to be controlled according to a resulting count value, and if the count value reaches a predetermined interval value, resuming counting the clock at the initial value. The timer changes the initial value to reduce a count of the clock between the initial value and the interval value if the first control circuit identifies the predetermined reference timing signal pattern to be present.