Serial Communication Circuit Frequency Multiplexing

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Solution Overview

Problem

Existing serial communication systems experience a drop in data communication efficiency due to the need for additional pins and communication lines to transmit data and instant information, which requires interrupting data transmission for instant information, leading to inefficiencies and potential interference.

Innovation Solution

A signal transmitting circuit and receiving circuit that utilize a control module, first and second transmitters, and differential pins to multiplex data and instant information on the same communication lines by distinguishing between signals based on frequency, allowing simultaneous transmission without interruption, using distinct frequencies for data and instant information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If additional pins and communication lines are used to transmit instant information, then instant information can be transmitted, but device complexity increases

Engineering Contradiction:

Improveinstant information transmissionVSAvoidnumber of pins and communication lines

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines data information and instant information transmission into a single communication line. The control module multiplexes two types of information on the same physical medium, eliminating the need for separate pins and communication lines for instant information, thus reducing device complexity while maintaining reliable transmission of both information types.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The communication line is designed to serve multiple functions: transmitting both data information and instant information. The control module enables the same communication infrastructure to handle different types of information streams simultaneously through frequency differentiation, making the system more versatile and reducing the need for dedicated hardware for each information type.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If data transmission is interrupted to transmit instant information, then instant information can be transmitted, but data communication efficiency decreases

Engineering Contradiction:

Improveinstant information transmissionVSAvoiddata communication efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent enables continuous transmission of data information without interruption while simultaneously transmitting instant information. The control module modulates the communication signal to accommodate both information types on the same communication line at the same time, eliminating the need to pause data transmission and thereby maintaining high data communication efficiency.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The control module uses periodic modulation techniques to embed instant information into the ongoing data transmission stream. By applying periodic signal variations at specific frequencies, the system can convey instant information intermittently within the continuous data flow without disrupting the overall data transmission continuity.

Inventive Principle:

Principle #19Periodic action

3Device complexity

If the same communication line is used for both data and instant information, then device complexity is reduced, but signal interference may occur

Engineering Contradiction:

Improvenumber of communication linesVSAvoidsignal interference

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The control module changes the frequency parameter of the transmission signal to differentiate between data information and instant information. By assigning distinct frequency ranges to each information type, the system can transmit both simultaneously on the same communication line without significant interference, as the frequency separation allows the receiving end to distinguish and process each signal type independently.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The control module segments the communication spectrum into different frequency bands, allocating specific frequency ranges for data information and others for instant information. This spectral segmentation enables simultaneous transmission on the same physical line while minimizing interference between the two information types through frequency division multiplexing.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11316556B2Signal transmitting circuit and signal receiving circuit for serial communication, and electronic device

Publication Date: 2022.04.26 SHANGHAI GEOMICRO DEVICES CO LTD

AI summary

A signal transmitting circuit and a signal receiving circuit for serial communication, and an electronic device are provided. The signal transmitting circuit includes a control module, a first transmitter, a second transmitter, a first differential pin, and a second differential pin, wherein the control module is configured to control the first transmitter to output a first signal via the first differential pin, and control the second transmitter to output a second signal via the second differential pin to record target information with a target signal after differentiating between the first signal and the second signal; and wherein if the target information includes data information and instant information, the data information is recorded in the target signal with a third signal with a first frequency while recording the instant information with a fourth signal with a second frequency, the first frequency is different from the second frequency.