KR970014438A - Wired and wireless remote control - Google Patents

Abstract

The present invention relates to a wired or wireless combined remote control that can be used as a wired or wireless, if necessary, by adding a jack for wired connection to the transmitter of the remote control, depending on whether or not a wired plug is connected to this jack It is possible to select the state, and the receiver is provided with a buffer circuit composed of a low pass filter unit and a transistor to change the electrical circuit of the transmitter and receiver of the infrared wireless remote control device, so that the user can control the functions of the wired remote controller and the wireless remote controller. Since it is possible to select and use in a convenient way, it is not necessary to consider the direction of the remote control when using as a wired remote control, and also it is not necessary to operate the remote control in front of the remote control receiver.

Description

Wired and wireless remote control

3 is a block diagram of a remote control transmitter of the present invention;

4 is a block diagram of a remote control receiver of the present invention.

Claims (3)

A key mattress 32 for providing a key input signal to the transmitting IC 30; A transmission IC 30 which receives the signal generated from the key mattress 32 and generates a transmission signal 1 and outputs the signal to the jack J3; A jack J3 for selectively providing a signal input from the transmitting IC 30; A transistor (T3) biased by a signal output through the jack (J3); A light emitting diode D3 for generating infrared rays according to the operation of the transistor T3; A remote control transmitter configured to include a battery BA for applying power to the transmitting IC 30 and the light emitting diode D3; A receiving IC 40 for sensing the radio transmitted signal and providing it to the microprocessor 42; A jack J4 for wired connection for receiving a signal transmitted by wire and providing it to the microprocessor 42; A low pass filter (LPF) for filtering a carrier component from a signal input from the jack J4 to the transistor T4; A transistor (T4) biased from the signal output from the low pass filter (LPF) and provided to the AND gate (AND); An AND gate (AND) for receiving the signal output from the transistor (T4) and the signal output from the receiving IC (40), and multiplying it to provide it to the microprocessor (42); Wire-wireless combined remote control, characterized in that consisting of a remote control receiver comprising a microprocessor (42) for operating the device in accordance with the signal input from the AND gate (AND). The line J3 of claim 1, wherein the jack J3 for selectively providing a signal input from the transmitting IC 30 is connected to the transistor T3 when the wire is connected, depending on whether a wire is connected to the jack. A wired / wireless combined remote control, characterized in that to block and simultaneously transmit the input signal through the wire, and if the wire is not connected to provide the input signal to the transistor (T3). The wired / wireless wireless device of claim 1, wherein the AND gate of the remote controller receiver checks the wired / wireless state without adding a separate device for selecting the wired and wireless states of the remote controller and determines the microprocessor. Combined remote control. ※ Note: The disclosure is based on the initial application.