Real-Time Value Generation Using Gray Code Across Clock Period Changes
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Solution Overview
Problem
Semiconductor devices face challenges in generating consistent real-time values across different clock signal periods, leading to errors and inaccuracies when switching between modes with varying clock signal periods.
Innovation Solution
A real-time value generation module that includes a clock signal generation circuit to produce clock signals of different periods, a time count circuit to manage time gray codes, and a function circuit to generate real-time values based on these codes, ensuring accurate value generation regardless of period changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the clock signal period changes to reduce power consumption, then power consumption is reduced, but real-time value accuracy deteriorates
Solution Approach 1:
The system dynamically switches between two clock signals with different periods (first clock signal with first period, second clock signal with second period) based on operational requirements. The time count circuit adapts its counting behavior accordingly, increasing the time gray code with the first clock signal and decreasing it with the second clock signal, allowing power consumption to be reduced while maintaining real-time value accuracy through adaptive operation.
Solution Approach 2:
The invention changes the period parameter of the clock signal from a fixed value to a variable value that can switch between two different periods. By modifying the clock signal period parameter dynamically, the system achieves power consumption reduction during low-activity periods while maintaining accurate real-time value generation when needed, resolving the contradiction between energy efficiency and measurement precision.
2Device complexity
If a single clock signal is used, then circuit complexity is reduced, but adaptability to different modes deteriorates
Solution Approach 1:
The time count circuit is designed with multi-functionality to handle two different clock signals with different periods. It can operate in multiple modes: increasing the time gray code in response to the first clock signal, decreasing it in response to the second clock signal, and generating real-time values that remain accurate across both modes. This universal design allows the same circuit to adapt to different operational requirements without requiring separate dedicated circuits for each mode.
Solution Approach 2:
The system implements dynamic adaptability by switching between two clock signals based on operational modes. The time count circuit dynamically adjusts its behavior - counting up with the first clock signal during high-performance modes and counting down with the second clock signal during low-power modes - enabling the circuit to adapt to different operational requirements while maintaining a relatively simple unified structure.
Data Source
AI summary
An electronic device is provided. The electronic device includes: a clock signal generation circuit configured to generate a first clock signal of a first period and a second clock signal of a second period, and to selectively output one of the first clock signal and the second clock signal; a time count circuit configured to increase a time gray code in response to the first clock signal and decrease the time gray code in response to the second clock signal; and a function circuit configured to generate a real-time value based on the time gray code.