Transmission Device High Frame Rate Communication Control
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Solution Overview
Problem
Existing bidirectional communication systems face challenges in achieving high frame rates due to the predetermined time requirements for data output, host switching, and communication with the host.
Innovation Solution
A transmission device and a reception device that include control signal reception and transmission units, and control units that switch between first and second communication modes based on switching information. The first communication mode executes host communication in a blanking period, while the second communication mode executes host communication in both a blanking period and a data output period, allowing for high frame rate communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If bidirectional communication is implemented with host communication in blanking period only, then device downsizing is achieved, but frame rate is limited due to communication time constraints
Solution Approach 1:
The frame period is segmented into distinct time regions: blanking period for host communication and data output period for data transmission. This temporal segmentation allows both host communication and high-speed data output to occur without interfering with each other, enabling high frame rates while maintaining bidirectional communication capability.
Solution Approach 2:
The communication mode is made dynamic by switching between first communication mode (host communication only in blanking period) and second communication mode (host communication in blanking period + data output in data output period). This dynamic switching allows the system to adapt to different frame rate requirements while maintaining device downsizing.
2Loss of time
If host communication is executed only in blanking period, then data transmission time is sufficient, but high frame rate cannot be achieved due to rate-limiting by communication time
Solution Approach 1:
The patent adds a temporal dimension to data transmission by utilizing the data output period, which is traditionally unused for data transmission. This transforms the time resource utilization from a single-dimensional (blanking period only) to a two-dimensional approach (blanking period for host communication + data output period for data transmission), thereby increasing overall productivity without increasing device complexity.
3Volume of moving object
If sensor device is downsized to share data output and communication control from reception side, then device size is reduced, but frame rate is limited by switching time and communication time
Solution Approach 1:
Host communication is performed in advance during the blanking period before the data output period begins. This preliminary action ensures that all necessary communication and switching operations are completed before data transmission starts, eliminating delays during the critical data output phase and enabling high frame rates.
Data Source
AI summary
An object of the present disclosure is to provide a transmission device, a reception device, and a transmission-reception system capable of achieving downsizing and communication at a high frame rate. A transmission device includes a control signal reception unit that receives a control signal input from an external device and including predetermined information, and a control unit that controls switching between first communication and second communication on a basis of switching information, the switching information being included in the predetermined information as necessary, the switching information indicating switching between the first communication in which host communication is executed in a blanking period among one frame period and the second communication in which host communication is executed in a blanking period and a data output period among one frame period.