Track Detection Unit for Power State Switching in Electronic Devices
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Solution Overview
Problem
Electronic devices face excessive power consumption and shortened standby time due to the high power state required for recognizing user track inputs, which is inefficient compared to the lower power state when the device is off.
Innovation Solution
An electronic device with a processor that has two states, where the track detection unit detects user track inputs and switches the processor from a low-power state to a higher-power state only when specific conditions are met, such as when the storage capacity or power level requires assistance, to conserve energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the processor operates in the first state to recognize user track input, then the track input recognition capability is improved, but the power consumption increases
Solution Approach 1:
The system is divided into two processing paths: a first processing unit that handles simple track detection and generates operational information, and a second processing unit that handles complex track input recognition. This segmentation allows the system to use only the necessary processing power for each task, avoiding the need to keep the high-power second processing unit constantly active.
Solution Approach 2:
The first processing unit performs preliminary detection of track inputs and generates operational information about the detection process. This preliminary action allows the system to assess whether complex recognition is needed before activating the high-power second processing unit, thereby avoiding unnecessary power consumption.
2Duration of action of stationary object
If the processor remains in the second state to extend standby time, then power consumption is reduced, but the ability to recognize user track input is lost
Solution Approach 1:
The first processing unit acts as an intermediary between the low-power standby state and the high-power recognition state. It continuously monitors for track inputs in a low-power mode and only triggers the second processing unit when actual track input is detected, serving as a bridge that allows the system to maintain standby capability while preserving recognition ability.
Solution Approach 2:
The system dynamically switches between different operational states based on detected conditions. The processor can transition from the low-power second state to the high-power first state when track input is detected, and return to the second state after processing. This dynamic state adjustment optimizes both standby time and recognition capability.
3Speed
If the processor frequently switches between states to respond to user input, then track input responsiveness is improved, but energy efficiency deteriorates
Solution Approach 1:
Different parts of the system have different operational characteristics: the first processing unit operates continuously in a low-power mode providing local detection capability, while the second processing unit operates intermittently in a high-power mode providing comprehensive recognition capability. This local quality differentiation allows responsive detection without the energy cost of continuous high-power operation.
Solution Approach 2:
The first processing unit performs partial detection functions continuously, handling simple track detection without needing full recognition capability. This partial action is sufficient for maintaining responsiveness while consuming minimal energy, reserving the excessive power consumption of the second processing unit only when absolutely necessary for complex recognition tasks.
Data Source
AI summary
An electronic device and a method for user track input detection are disclosed. One electronic device includes a processor having a first state and a second state. The processor consumes more power in the first state than in the second state. The electronic device also includes a track detection unit that detects a user track input. Operational information of the track detection unit is determined as the track detection unit detects the user track input, and, in response to the determined operational information of the track detection unit satisfying a predetermined condition, the processor switches from operating in the second state to operating in the first state.