Pulse Signal Superposition Circuit for Fewer Control Lines
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Solution Overview
Problem
Control devices in modern machinery face challenges in generating and transmitting multiple signals efficiently for various applications, requiring a solution to manage multiple pieces of information effectively.
Innovation Solution
An output signal generation circuit that includes a first pulse generation circuit to create a first pulse signal with a minimum pulse width, a second pulse generation circuit to superimpose additional information on this signal with a narrower pulse width, and an output circuit to transmit the combined signal, allowing for the generation of a single signal that can be used for a wide range of applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate signal lines are used to transmit different information to functional units, then each piece of information can be transmitted reliably, but the number of signal lines and terminals increases
Solution Approach 1:
The patent combines multiple separate signal lines into a single shared signal line by superimposing multiple pieces of information onto one pulse signal. The first pulse generation circuit generates a pulse signal with first information, and the second pulse generation circuit superimposes second information onto this signal, creating a composite pulse signal that carries multiple information streams simultaneously through one terminal connection.
Solution Approach 2:
The single terminal connection is designed to serve multiple functional units simultaneously. The output circuit connects this terminal to multiple functional units, allowing one terminal to perform the function of multiple separate connections. Each functional unit can extract its required information from the composite pulse signal, making the terminal universal for multiple purposes.
2Device complexity
If a single signal line is used to transmit multiple pieces of information, then the number of signal lines and terminals is reduced, but signal interference and information extraction difficulty increase
Solution Approach 1:
The composite pulse signal is segmented into distinct time intervals, with each piece of information assigned to a specific time slot. The first information is transmitted during a first time period and the second information during a second time period. This time-division segmentation allows functional units to extract information sequentially without interference, making detection and measurement straightforward.
Solution Approach 2:
The patent employs periodic pulse signals with regular time intervals to transmit different information. The pulse generation circuits create periodic pulses where each cycle contains structured time periods for different information. This periodic structure enables functional units to synchronize and extract information at predictable intervals, reducing detection difficulty.
Data Source
AI summary
An output signal generation circuit includes a first pulse generation circuit configured to receive first information and generate a first pulse signal including the first information, the first pulse signal having a first pulse width that is a minimum pulse width of the first pulse signal, a second pulse generation circuit configured to receive second information and the first pulse signal, and generate a second pulse signal in which the second information is superimposed on the first pulse signal, the second pulse signal having a second pulse width smaller than the first pulse width, and an output circuit configured to output the second pulse signal.