Moving Picture Storage System DTMF Control
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Solution Overview
Problem
Operators of terminal devices often struggle to understand how to instruct the start and end of storage for moving pictures in real-time storage systems, leading to inefficiencies in the storage process.
Innovation Solution
A moving picture storage system that includes a receiver for receiving audio and image data, a transmitter for sending guidance signals to the terminal device on how to initiate and end storage, a detector for identifying instruction signals from the terminal device, and a converter that adjusts image data to intramode coding based on these signals, ensuring proper storage and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system transmits guidance signals to terminal devices, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent introduces a guidance signal transmission mechanism that acts as an intermediary between the storage system and terminal device operators. The system transmits visual or auditory guidance signals that instruct operators on how to properly initiate and terminate storage operations, thereby improving ease of operation without requiring complex interface changes or additional hardware at the terminal device side.
2Reliability
If the leading frame is converted to intramode coding, then the reliability of storage is improved, but the loss of time increases
Solution Approach 1:
The patent implements preliminary conversion of the leading frame to intramode coding before the actual storage process begins. By pre-converting the first frame data to the required intramode format, the system ensures reliability of storage (since intramode frames can be decoded without reference to previous frames) while minimizing time loss, as the conversion is performed once at the start rather than continuously during storage.
Data Source
AI summary
When a start recording instruction or an end recording instruction is transmitted from a terminal device, a DTMF detector (106) detects a DTMF signal and supplies the detection results to a control module (107). The control module (107) supplies the received start recording instruction or end recording instruction to an image data converter (105) and a switch (108). When a start recording instruction is received as input, the image data converter (105) converts the reception image data (103) to image data that have undergone intramode coding and supplies the result to the switch (108). The switch (108) supplies a storage device (110) with the image data that were supplied from image data converter (105) at the time that a start recording instruction is received as input, and supplies the storage device (110) with reception image data (103) from the time that recording has started until the input of an end recording instruction.