Motion Encoder AGC Using Self-Generated Pulse Clocks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motion encoding systems face challenges with increased complexity, power consumption, noise, die size, and cost due to the need for external clock signals and complicated AGC circuitry to maintain gain control amidst manufacturing variations, temperature changes, and aging effects.
Innovation Solution
A method and system that generates out-of-phase analog signals, using a pulse generation circuit to create digital pulses from these signals, which are then employed as clock signals in an AGC circuit to adjust gains, eliminating the need for external clock signals and simplifying the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external clock signals and complicated AGC circuitry are employed to maintain gain control, then gain control stability is improved, but device complexity increases
Solution Approach 1:
The motion encoder system generates its own clock signal internally using the pulse generation circuit, eliminating the need for external clock sources. The system uses its own output signals to generate the clock that drives the AGC circuit, making the system self-sufficient and reducing external dependencies.
Solution Approach 2:
The patent combines the clock generation function and AGC function into a single integrated circuit block. The pulse generation circuit that generates clock signals is merged with the AGC circuitry, allowing both functions to share resources and reduce overall system complexity.
2Reliability
If external clock signals and complicated AGC circuitry are employed to maintain gain control, then gain control stability is improved, but power consumption increases
Solution Approach 1:
The motion encoder system generates its own clock signal internally using the pulse generation circuit, eliminating the need for external clock sources. The system uses its own output signals to generate the clock that drives the AGC circuit, making the system self-sufficient and reducing external dependencies.
Solution Approach 2:
The AGC circuit operates periodically based on the generated clock signal, adjusting gains at specific intervals rather than continuously. This periodic operation reduces power consumption compared to continuous adjustment while maintaining effective gain control.
3Reliability
If external clock signals and complicated AGC circuitry are employed to maintain gain control, then gain control stability is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the clock generation function and AGC function into a single integrated circuit block. The pulse generation circuit that generates clock signals is merged with the AGC circuitry, allowing both functions to share resources and reduce overall system complexity.
Solution Approach 2:
The motion encoder system generates its own clock signal internally using the pulse generation circuit, eliminating the need for external clock sources. The system uses its own output signals to generate the clock that drives the AGC circuit, making the system self-sufficient and reducing external dependencies.
4Reliability
If external clock signals and complicated AGC circuitry are employed to maintain gain control, then gain control stability is improved, but die size increases
Solution Approach 1:
The patent combines the clock generation function and AGC function into a single integrated circuit block. The pulse generation circuit that generates clock signals is merged with the AGC circuitry, allowing both functions to share resources and reduce overall system complexity.
Solution Approach 2:
The invention extracts and eliminates the need for external clock signal sources and associated circuitry. By generating the clock signal internally within the motion encoder, the patent removes external components and reduces the overall die size required for the system.
Data Source
AI summary
Disclosed are various embodiments of pulse generation and automatic gain control (“AGC”) circuits and corresponding methods that are especially well suited for use in motion encoding systems. Analog output signals provided by a motion encoder serve as inputs to the pulse generation circuit, where peaks, valleys and/or crosspoints corresponding to such analog signals are first detected and then employed to generate output pulses corresponding thereto. These output pulses are next provided to an AGC circuit as self-generated clock signals which control the time windows over which the analog signals of the motion encoder are sampled and processed by the AGC circuit so as to adjust the gains applied to such analog signals.