Remote Control Device Signal Interval Adaptation
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Solution Overview
Problem
Existing remote control devices face interference issues when consecutively selecting input keys, leading to delayed functionality in controlling external devices like set-top boxes due to radio signal interference and the need for specific time intervals between signal transmissions.
Innovation Solution
A remote control device with a processor that identifies a longer time interval between radio signals based on the length of the first signal, allowing for consecutive output of radio signals with different protocols and carrier frequencies to prevent interference, ensuring swift and accurate control of external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the TV repeatedly transmits radio signals to the set-top box when input keys are consecutively selected, then the control responsiveness is improved, but radio signal interference occurs causing improper operation
Solution Approach 1:
The patent applies periodic action by transmitting radio signals at specific time intervals rather than continuously. The processor controls the signal transmitter to output radio signals at predetermined intervals, creating a rhythmic transmission pattern that prevents interference while maintaining control responsiveness. This periodic transmission allows the set-top box to process each signal completely before the next one is sent.
Solution Approach 2:
The patent implements preliminary action by having the processor identify and prepare the time interval before transmitting the radio signal. The processor determines the appropriate transmission timing in advance based on the length of the first radio signal, ensuring that the second radio signal is transmitted only when the system is ready, thus preventing interference before it occurs.
2Reliability
If the TV secures specific time intervals between transmitting radio signals, then radio signal interference is prevented, but the control speed for consecutively selected input keys is reduced
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the time interval between radio signal transmissions based on the length of the first radio signal. The processor identifies the time interval parameter and modifies it according to the actual signal characteristics, optimizing the balance between preventing interference and maintaining fast control response. This adaptive parameter adjustment ensures reliability without unnecessary delays.
3Adaptability or versatility
If the TV transmits radio signals for controlling set-top box based on received remote control signals, then set-top box control functionality is added, but interference with TV's own radio signals occurs
Solution Approach 1:
The patent uses the processor as an intermediary that coordinates between the remote control signal reception and the set-top box control signal transmission. The processor acts as a mediator that receives the first radio signal, processes it, determines the appropriate time interval, and then transmits the second radio signal. This intermediary role prevents direct interference by ensuring proper timing and separation of signal transmissions.
Data Source
AI summary
A remote control device configured to control an electronic device including: a plurality of input keys; a signal transmitter; and a processor configured to: identify a time interval between a first radio signal and a second radio signal based on a length of the first radio signal, and based on one of the plurality of input keys being consecutively selected, control the signal transmitter to repeatedly output the second radio signal corresponding to the selected input key according to the identified time interval, where the first radio signal is configured to control an external electronic device communicating with the electronic device based on the second radio signal received from the remote control device.