Wireless Radio Device Rewind Playback and Interruption Control
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Solution Overview
Problem
In half-duplex wireless communication, the communication channel is occupied when a listener is receiving a voice, preventing the speaker from correcting their speech or conveying urgent information, as the listener cannot receive signals during transmission.
Innovation Solution
A radio device with a transmitter, receiver, recorder, playback controller, and transmit-receive controller that allows for rewind playback and interrupt transmission, enabling the speaker to notify the listener of playback status and interrupt the playback to convey additional information without occupying the channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the listener receives a voice in half-duplex communication, then the communication channel is occupied, but the speaker cannot correct their speech or convey urgent information
Solution Approach 1:
The patent segments the communication process into distinct phases: transmission phase, reception phase, and playback phase. By dividing the continuous communication flow into discrete segments, the system allows the speaker to transmit correction or urgent information during the playback phase without interfering with the listener's reception phase, thus resolving the contradiction between channel occupancy and communication flexibility
Solution Approach 2:
The patent implements preliminary action by having the listener record and store the received voice before playback. This preliminary recording action creates a buffer that allows the speaker to send additional information while the listener prepares for playback, enabling communication flexibility without compromising channel reliability
2Ease of operation
If the speaker waits for a response during rewind playback, then smooth conversation is enabled, but the listener cannot receive urgent information
Solution Approach 1:
The patent introduces dynamic control of the playback process, allowing the listener to interrupt rewind playback when urgent information is detected. This dynamic adjustment enables the system to switch between smooth conversation mode (continuous playback) and urgent information delivery mode (interrupted playback), resolving the contradiction between conversation smoothness and information delivery
3Reliability
If the communication channel is occupied during voice reception, then transmission quality is maintained, but correction speech cannot be transmitted
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of a playback controller that manages the timing and interruption of voice playback. This intermediary component coordinates between the transmission quality requirements (maintaining channel occupancy) and correction timing requirements (allowing interruption for corrections), enabling both objectives to be achieved by mediating the conflict through controlled playback interruption
Data Source
AI summary
A radio device comprising: a transmitter that transmits a transmission voice; a receiver that receives a reception voice; a recorder that records the reception voice; a playback controller that performs rewind playback of a reception voice recorded in the recorder during the reception voice being received; and a transmit-receive controller that causes the transmitter to transmit the under playback signal to notify that it is during the rewind playback when it is detected that reception of the reception voice is completed during the rewind playback, and that causes the transmitter to transmit a playback end signal indicating that the rewind playback is finished when the rewind playback is finished.