Phase-Modulated Data Signal Control Transmission
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Solution Overview
Problem
Existing methods for transmitting control signals alongside data signals using the same communication line cause delays in data signal transmission and reception, leading to increased complexity and cost due to the need for additional communication lines.
Innovation Solution
A control signal transmission and reception system that adjusts the phase of data signals by applying jitter using a phase code, where the additional phase code is periodically varied when the control signal is at a high level and fixed at 0 when at a low level, allowing for simultaneous transmission and reception without delaying data signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a control signal is transmitted at a timing different from that of a data signal using the same communication line, then the number of communication lines is reduced, but a delay in transmission and reception of the data signal is caused
Solution Approach 1:
The patent merges control signal transmission with data signal transmission by superimposing the control signal onto the data signal communication line. The control signal is added to the data signal in the time domain, allowing both signals to share the same communication channel simultaneously without requiring separate lines, thus reducing device complexity while avoiding time delays.
Solution Approach 2:
The patent introduces an intermediary processing mechanism that separates and recombines control and data signals in the time domain. By using intermediate processing stages to add and extract control signals from the data signal stream, the system enables control signal transmission without interfering with data signal timing, resolving the contradiction between line reduction and delay avoidance.
2Area of stationary object
If a control signal is transmitted using the same communication line as data signal, then mounting area and cost are reduced, but the control signal transmission interferes with data signal integrity
Solution Approach 1:
The patent applies local quality by processing control and data signals differently in the time domain. The control signal is added only during specific time periods when data is not being transmitted, creating localized time slots for control signal insertion. This localized approach allows control signal transmission on the same communication line without interfering with data signal integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables control signal transmission and reception without delaying data signal transmission, reduces the number of communication lines needed, and minimizes the increase in circuit scale and installation area, thereby reducing costs.
Implementation Method 1
applying, in a case where a signal level of the control signal is a level, jitter to the data signal by periodically changing a magnitude of an additional phase code to be added to a phase code representative of an adjustment amount for the phase
Data Source
AI summary
A method includes transmitting a data signal generated by adjusting a phase of a data signal, receiving a control signal having a frequency lower than that of the data signal and used to control an apparatus of a transmission destination of the data signal, and applying, in a case where a signal level of the control signal is a level, jitter to the data signal by periodically changing a magnitude of an additional phase code to be added to a phase code representative of an adjustment amount for the phase but fixing, in a case where the signal level is a level different from the level, the additional phase code to 0, receiving the data signal and adjusting a phase of the data signal to generate a data signal and restoring the control signal from a phase code representative of an adjustment amount for the phase.