Remote Control Key Code Relay via RF Intermediary
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Solution Overview
Problem
Consumers face inconvenience in operating multiple electronic devices using multiple remote control devices, as manufacturers often limit memory in remote control devices to store only a limited number of codesets, making it difficult to control various electronic consumer devices with a single remote control device.
Innovation Solution
A system that relays key code signals through a remote control device, where a key code generator device identifies the appropriate codeset for the selected electronic consumer device and generates a key code signal, which is then modulated onto a radio frequency carrier signal and relayed to the device, allowing the remote control device to control multiple electronic consumer devices without storing the codeset.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manufacturers limit memory in remote control devices to a size sufficient to store only a limited number of codesets, then the cost and complexity of the remote control device is reduced, but the ability to control multiple electronic consumer devices with different codesets is limited
Solution Approach 1:
A key code generator device serves as an intermediary between the remote control device and electronic consumer devices. The generator device stores the complete codeset and converts key presses into device-specific key code signals, allowing the remote control device to control multiple devices without storing their codesets locally.
Solution Approach 2:
The codeset storage function is extracted from the remote control device and placed in a separate key code generator device. This allows the remote control device to maintain minimal memory while still being able to control multiple electronic consumer devices with different codesets.
2Reliability
If manufacturers use distinct codesets for communication between various electronic consumer devices and their associated remote control devices, then unintentional operation of devices is avoided, but the number of codesets that can be stored in remote control device memory becomes prohibitively large
Solution Approach 1:
The key code generator device acts as an intermediary that maintains the distinct codesets required for reliable device control. It receives key presses from the remote control device and translates them into device-specific key code signals using the appropriate codeset, ensuring reliable operation without requiring the remote control device to store multiple codesets.
3Adaptability or versatility
If a single remote control device stores many codesets to control a large number of different electronic consumer devices, then device versatility is improved, but the memory size required becomes excessively large
Solution Approach 1:
The key code generator device serves as an intermediary that stores the extensive codeset library. This allows a single remote control device to control a large number of different electronic consumer devices without requiring the remote control device itself to have large memory capacity, as the generator device handles the codeset storage and translation functions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables control of multiple electronic consumer devices using a single remote control device, reducing memory requirements and allowing operation of devices with different codesets without the need for extensive memory storage, thereby making remote control devices more affordable and versatile.
Implementation Method 1
the key code generator device generates a key code and modulates that key code onto a radio frequency carrier signal, thereby generating a first key code signal
Implementation Method 2
The remote control device receives the first key code signal from the key code generator device and modulates the key code onto an infrared frequency carrier signal, thereby generating a second key code signal
Data Source
AI summary
Upon receiving a keystroke indicator signal from a remote control device, a key code generator device identifies a codeset usable to communicate with a selected consumer device. The keystroke indicator signal contains an indication of a pressed key, which corresponds to a function of the selected consumer device. Using the identified codeset and the key indication, the key code generator device generates a key code and modulates that key code onto a radio frequency carrier signal, thereby generating a first key code signal. The remote control device receives the first key code signal from the key code generator device and modulates the key code onto an infrared frequency carrier signal, thereby generating a second key code signal. The remote control device relays the key code to the selected consumer device in the second key code signal. The key code causes the selected consumer device to perform the desired function.