Shift register circuit and method for controlling shift register circuit
By introducing counters and comparators into the shift register circuit, and starting the flip-flop chain according to the edge changes of the input and output signals, the problem of unnecessary power consumption in the prior art is solved, and more efficient energy utilization is achieved.
CN115472204BActive Publication Date: 2026-07-17WINBOND ELECTRONICS CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WINBOND ELECTRONICS CORP
- Filing Date
- 2022-03-09
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing digital shift register circuits still consume unnecessary power when the input clock remains constant, resulting in energy waste.
Method used
By introducing counters and comparators into the control circuit, the trigger chain is activated based on the signal edge changes of the input and output signals. The control signal is output only when the counts are different to activate the trigger chain, thereby reducing unnecessary power consumption.
Benefits of technology
It effectively reduces the power consumption of the shift register circuit and improves energy utilization efficiency by activating the flip-flop chain only when necessary.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115472204B_ABST
Abstract
This invention provides a shift register circuit and a method for controlling the shift register circuit. The shift register circuit includes a chain of flip-flops and a control circuit. The flip-flop chain is configured to receive an input signal and output an output signal. The control circuit is coupled to the flip-flop chain. The control circuit is configured to receive the input signal and the output signal, and to output a control signal to activate the flip-flop chain based on changes in the signal edges of the input and output signals.
Need to check novelty before this filing date? Find Prior Art