KR100222905B1 - Radio key board control apparatus using remote controller in a television - Google Patents

Abstract

According to the present invention, the TV remote control unit and the wireless keyboard can be controlled using only the TV remote control receiver unit without connecting the remote control unit receiving unit for receiving the remote control signal for the TV and the receiver unit for receiving data transmitted from the wireless keyboard. A wireless keyboard control device using a remote control receiver of a TV), and a wireless computer keyboard device using a conventional infrared ray infrared detector for detecting wireless data and a clock signal and infrared data transmitted from a remote control of the TV As the remote control receivers for receiving TV are separately provided, two or more receivers of the same function exist, the cost is increased, and the receivers for the wireless keyboard are separately located outside the set. There was a problem.

The present invention uses a TV remote control receiver without connecting the remote control receiver for receiving a remote control signal for the TV and the light receiver for receiving data transmitted from the wireless keyboard to solve the conventional problems such as TV and PC communication Applies to TV as a function that can selectively perform the function.

Description

Wireless keyboard control device using TV remote control receiver

According to the present invention, the TV remote control unit and the wireless keyboard can be controlled using only the TV remote control receiver unit without connecting the remote control unit receiving unit for receiving the remote control signal for the TV and the receiver unit for receiving data transmitted from the wireless keyboard. It relates to a wireless keyboard control device using a remote control light receiver of the TV).

In the related art, as illustrated in FIGS. 1 and 2, the output ports P21 and P20 of the keyboard controller 1 in the computer main body respectively emit infrared light emitting units 2 and 3 for transmitting data and clock signals in infrared light. To the input port (P11), the infrared detector 4 for detecting the infrared data input from the keyboard, and the input port (P28, P4) of the keyboard processor 5 in the keyboard to the computer main body, respectively An infrared detector 6 and 7 for detecting infrared data and a clock signal transmitted from the infrared ray, and an infrared light emitting unit 8 for transmitting data to the computer body in infrared through its output port P29. A wireless computer keyboard device using a non-descriptive symbol, wherein LED1-LED3 is an infrared light emitting diode, Q1-Q3 is an infrared light emitting diode (LED1-LED3) driving transistor, and R1-R3 is a resistor. C1-C5 is the capacitor, 9 is the keyboard power supply, BAT is a 12V battery, and 91 is a constant voltage regulator.

In the conventional wireless computer keyboard device using the above-described infrared ray, as shown in FIGS. 1 and 2, a high signal is output from the output port P21 of the keyboard controller 1 so as to transmit predetermined data from the computer main body to the keyboard. When the transistor Q1 is turned on, the light emitting diode LED1 is turned on to emit an infrared signal. When the output port P21 is low, the transistor Q1 is turned off, and thus the light emitting diode LED1 is turned off to emit an infrared signal. Since the infrared signal is not transmitted, the control function is changed according to the on and off states of the transistor Q1 and the light emitting diode LED1.

In addition, the infrared clock signal transmitted through the light emitting diode LED2 also depends on the signal output from the output port P20 of the keyboard controller 1.

On the other hand, the keyboard detects the infrared signals transmitted from the computer body through the respective infrared detectors 6 and 7, converts them into digital data and clock signals, and then inputs the ports P28 and P4 of the keyboard processor 5 in the keyboard. Since it is input through the keyboard processor (5) it is possible to know what data is sent from the computer main body.

In addition, the keyboard data by the key input of the key input is applied to the base of the transistor Q3 through the output port P29 of the keyboard processor 5, so that the transistor Q3 and the light emitting diode LED3 are as described above. The on / off operation is repeated so that the infrared signal corresponding to the key is transmitted through the light emitting diode LED3.

On the other hand, the infrared signal emitted from the infrared light emitting diode LED3 in the keyboard is converted into an electrical signal by the infrared detector 4 in the computer main body, and then input to the keyboard controller 1 to correspond to a key in the CPU in the computer main body. You will be able to perform tasks and functions.

In addition, since the power in the keyboard is supplied using a separate battery, the computer main body and the keyboard can be used even if they are not interconnected by separate cables.

On the other hand, by varying the wavelength of the infrared rays emitted from the light emitting diodes (LED1-LED3), it is possible to prevent the interference effect between each signal, and the infrared detectors (4, 6, 7) is also designed to correspond to each other, so that the interference Will be able to prevent.

However, a conventional wireless computer keyboard device using infrared rays is provided with an infrared detector for wireless keyboard for detecting infrared data and a clock signal, and a remote control receiver for TV for receiving infrared data from a remote control of a TV. Cost increases because two or more light receiving units having the same function are present, and the light receiving unit for the wireless keyboard exists separately outside the set, which causes trouble in attaching and connecting the light receiving unit.

The present invention is to solve the conventional problems such as a remote control receiver for receiving a remote control signal for the TV and a receiver for receiving data transmitted from the wireless keyboard, respectively, without connecting the TV remote control and wireless using only the TV remote control receiver Referring to the configuration and operation of the present invention by the accompanying drawings as to enable the control of the keyboard as follows.

1 is a keyboard interface circuit diagram installed in a conventional computer.

2 is a keyboard interface circuit diagram installed in a conventional keyboard.

Figure 3 is a block diagram showing the structure of a wireless keyboard control device using a remote control receiver of the present invention TV.

Figure 4 is a remote control data waveform diagram of the present invention.

5 is a flow chart showing a TV and PC communication selection control process according to the remote control signal of the present invention.

First, the wireless keyboard control apparatus using the remote control receiver of the present invention, as shown in Figure 3, largely divided into a TV and a PC communication unit, a remote control for transmitting a key signal to perform the TV function and PC communication function (11), the light receiving unit 12 for receiving the remote control key signal transmitted from the remote control unit 11, and receiving the signal received by the light receiving unit 12 to determine whether it is a TV / PC communication signal through a key decoding service routine. A microcomputer 13 for judging and controlling each part of the system, a tuner unit 14 for tuning a broadcast signal transmitted from a broadcasting station when the signal determined by the microcomputer 13 is a TV signal, and a control signal of the microcomputer 13; The image color deflection unit 15 for processing the image of the broadcast signal tuned by the tuner unit 14 to be displayed on the CRT, the driving unit 16 for driving the image on the CRT, and the microcomputer 13 to the microcomputer 13. mouth If the received signal is a PC communication function signal, the data conversion unit 17 converts and outputs the serial data output from the microcomputer 13, and receives the data converted and output from the data conversion unit 17 to the CPU 19. CPU 19 for controlling each unit to perform a PC communication function by receiving the first buffer 18 for converting and amplifying and outputting the 16Bit signal to be input and the key signal converted and output from the first buffer 18. When the PC communication function is selected through the TV remote control unit, the control unit 20 supplies power to the PC communication unit by the control signal of the microcomputer 13 and the control signal of the CPU 19 when the power is applied. Main memory 21 for storing data necessary for PC communication operation at power-up, an application ROM 22 for storing a PC communication program, and an EEPROM 23 for storing ID, password, and connection host information necessary for communication. PC connected to external telephone line Modem 24 for controlling data exchange between PC communication host and CPU 19 by connecting to signal host, and transmitting and receiving data to and from CPU 19, controlling peripheral memory and D / A converter, PC communication with the VGA controller 25 for outputting the graphic data according to the setting value for the set graphic output signal, the image memory 26 for storing the graphic data output from the VGA controller 25 to be displayed on the CRT. In order to change the signal into a TV signal, the first line storage unit 27 stores an even line on an even number and an odd line on an odd number, and an odd line on an even number to eliminate flicker on the screen. In the odd fields, the digital signals output from the second line storage unit 28 and the first and second line storage units 27 storing the even-numbered lines are converted into analog R, G, and B signals, respectively. Zero of your TV First and to consist of 2D / A changing portion 29 (30), reference numeral 31 to be applied to the color bias unit 15 is a second buffer, 32 is a system ROM.

On the other hand, Figure 4 is a waveform diagram of the remote control data, Figure 5 is a flow chart showing a TV and PC communication selection control process by the remote control signal, and detecting the input remote control signal to determine whether the TV signal or PC communication signal and If the inputted remote control signal is a TV signal, the control unit analyzes the input data to perform a TV operation function. If the inputted remote control signal is a PC communication signal, the input data is analyzed and converted into keyboard data. After the step is configured to control the PC communication function is performed.

3 and 5, the effect of the present invention configured as described above, first, when the power is applied to the TV to perform a function like a normal TV to display a desired channel in the CRT and the same function as in a normal TV Will be implemented.

In this case, when the remote control signal is received by the light receiving unit 12 provided in the TV, the microcomputer 13 determines whether the signal received by the light receiving unit 12 is a TV signal or a PC communication signal through a key decoding service routine.

As shown in FIG. 4, the data output from the remote controller is composed of CC, / CC, KC, / KC, and the microcomputer 13 receives the remote controller data received by the light receiving unit 12. After comparing CC and / CC using (not shown), if CC is "4" and / CC is input as "5", it is determined that the input remote control signal is normally received.

At this time, when the comparison value of CC, / CC is "4", the tuner unit 14 controls the corresponding function and the corresponding part of the TV by analyzing the input remote control key signal value by judging it as a TV signal. The image color deflection unit 15 receives the broadcast signal tuned by the tuner unit 14 by the control signal of the microcomputer 13 and processes the broadcast signal transmitted by the control signal output from the control unit. The driving unit 16 displays the image of the input broadcast signal on the CRT.

On the other hand, when the comparison value of CC and / CC is "5", the microcomputer 13 determines that the input signal is a PC communication signal and applies the input data to the data conversion unit 17 of the PC communication unit in series.

Therefore, if the data converter 17 analyzes the data serially input from the microcomputer 13 and converts the data into a 16-bit signal for input to the CPU 19, the first buffer 18 converts the data into the data converter 17. By receiving the converted output signal from the amplified and applied to the CPU 19, the CPU 19 is analyzed so that the PC communication function is performed by analyzing the input signal.

At this time, if the comparison value of the remote control data CC, / CC inputted from the microcomputer 13 is not "4" or "5", the microcomputer 13 does not have an error in the input remote control signal or is not a TV or PC communication function signal. It determines that the remote control signal is input again.

When the user selects the PC communication function using the TV remote control as described above, the microcomputer 13 judges the input remote control data, checks the PC communication function, turns on the recurator 20, and applies power to the PC communication unit. Displays the OSD corresponding to the PC communication function on the CRT.

After a certain time (approximately 8 seconds) when power is supplied to the PC communication unit CPU 19 receives the data necessary for the PC communication function and stores the data necessary for the PC communication operation in the main memory 21 and a predetermined time (about 8 seconds) If the elapsed time is passed, the microcomputer 13 outputs the execution data so that the communication program is executed in the PC communication unit, and the CPU 19 reads the communication program stored in the application ROM 22 and performs the communication program. The acknowledgment signal ACK indicating that the execution data outputted from the input signal is transmitted to the microcomputer 13.

Therefore, the microcomputer 13 receives the response signal output from the CPU 19, and after a predetermined time (about 6 seconds) has passed, the TV switches to the external input (R, G, B) mode and is output from the PC communication unit. Will be displayed on the CRT.

The EEPROM 23 stores information on an ID, a password, and a connection host required for communication when a user wants to perform PC communication.

On the other hand, the modem 24 connected to the CPU 19 is connected to the external telephone line is connected to the PC communication host to exchange data between the PC communication host and the CPU 19.

As such, when the CPU 19 executes the communication program, the VGA controller 25 exchanges data with the CPU 19 through the second buffer 31 and controls the peripheral memory and the D / A changer. Graphic data is output according to the setting value for the graphic output signal.

In this case, the graphic data output from the VGA controller 25 is stored in the image memory 26 and output to the screen.

Therefore, when the graphic data is output from the VGA controller 25, the first line memory 27 stores the even lines in the even field and the odd lines in the odd field in order to convert the PC communication signal into a TV signal. In order to remove the flickering of the screen in the second line memory 28, the odd-numbered line is stored in the even field and the even-numbered line in the odd field is stored at the same output time as in the first line memory 27. Will output a signal.

As such, the signal output from the first line memory 27 and the signal output from the second line memory 28 are input to the D / A converters 29 and 30, respectively, so that the D / A converter 29 The microcomputer 13 receives the response signal output from the CPU 19 by converting the digital signal output from the digital signal output unit 30 into analog R, G, and B signals and applying the same to the image color deflection unit 15 of the TV. After a certain time (approximately 6 seconds), the TV switches to the external input (R, G, B) mode so that the signal output from the D / A conversion unit 29, 30 of the PC communication unit is displayed on the CRT on the menu screen. do.

As described above, the remote control receiver for receiving the remote control signal for the TV and the receiver for receiving data transmitted from the wireless keyboard are not connected separately, so that the control of the TV remote control and the wireless keyboard using only the TV remote control receiver. Wiring and mounting of the light receiving unit can be simplified, and the cost can be reduced by one remote control light receiving unit, thereby improving the productivity of the product and improving the reliability.

Claims (1)

In the PC communication TV in which the TV and the PC communication unit are integrated, A light receiving unit 12 for receiving an infrared signal transmitted from a remote controller and a wireless keyboard and a signal received by the light receiving unit 12 are input to determine whether it is a TV signal or a PC communication signal through a key decoding service routine to function as a corresponding signal. In this case, the microcomputer 13 for controlling each unit and the signal determined by the microcomputer 13 are PC communication signals, and the serial data output from the microcomputer 13 is analyzed and converted into 16Bit signals to be input to the CPU 19. TV (TV), characterized in that consisting of a data conversion unit 17 for outputting, and the CPU 19 for controlling each unit to perform the PC communication function by receiving the signal converted and output from the data conversion unit 17 Wireless keyboard control device using the remote control receiver.