KR100289017B1 - Infrared transmitting and receiving system - Google Patents

Abstract

PURPOSE: A device for transmitting/receiving infrared rays is provided to receive an infrared signal in a monitor by adding an infrared rays receiving device to the monitor and to reduce a power consumption by adding a wake-up function to an infrared rays transmitting device. CONSTITUTION: In case that a keyboard included in a key input unit(100) or a key(101¯101+n) mounted in an X-Y coordinate conversion remote controller is pressed, a wake-up signal generating unit senses the pressing operation and generates a wake-up signal. If a wake-up signal is generated from the wake-up signal generating unit, a key sensing and wake-up detecting unit(120) senses a signal being generated in the key input unit(100) and generates a key signal corresponded to the signal. An encoder(130) codes the key signal generated in the key sensing and wake-up detecting unit(120) into key data. A counter and timer(150) creates a pulse waveform for a modulation of infrared rays. An infrared signal converting unit(140) converts the key data being obtained in the encoder(130) into an infrared signal using the created pulse waveform created in the counter and timer(150). An infrared rays transmitting unit(160) transmits the infrared signal generated in the infrared signal converting unit(140).

Description

Infrared transmitting and receiving system

The present invention relates to an infrared ray transmitting / receiving device for wirelessly controlling a personal computer (P / C). In particular, an infrared ray receiving device is added to a monitor to receive an infrared signal from the monitor itself and a wake-up to the infrared ray transmitting device. The present invention relates to an infrared transmitting / receiving device which adds a wake-up function to minimize power consumption.

In general, in order to use and control a personal computer, a plurality of keys provided in a keyboard are operated or a button provided in a mouse is operated. Therefore, in order to switch the screen provided in the monitor or to use various functions, a plurality of keys provided in the keyboard must be operated several times or a button provided in the mouse needs to be operated many times. By operating the keys of the keyboard several times or manipulating the buttons provided in the mouse several times, it is possible to perform a function desired by the user.

In order to solve such inconvenience in use, a wireless transmission device using infrared rays and a reception device that receives the infrared signal and transmits the infrared signal to a main body of a personal computer are being researched and developed.

1 is a block diagram of a receiving apparatus for receiving an infrared signal in a conventional personal computer, and a transmitting apparatus for transmitting an infrared signal to the receiving apparatus in order to solve the above inconvenience.

As shown here, an encoder 12 for encoding a signal of the keyboard 11 (or a mouse) into key data, an infrared modulator 13 for modulating the key data encoded by the encoder 12 into an infrared signal, and Infrared transmission comprising an infrared signal amplifier 14 for amplifying the infrared signal output from the infrared modulator 13 and an infrared transmitter 15 for transmitting the infrared signal amplified by the infrared signal amplifier 15. Device 10; An infrared receiver (16) for receiving infrared rays transmitted from the infrared transmitter (10) and converting them into analog signals; A P / C controller 17 in the P / C main body which receives the infrared signal received by the infrared receiver 16 through a separate connection cable 19; It is composed of a monitor 18 for displaying data under the control of the P / C controller 17.

In the conventional personal computer configured as described above, the receiving device and the infrared signal device for receiving an infrared signal are first equipped with an encoder 12 in the infrared transmitting device 10 mounted at a predetermined position of the keyboard 11 to be operated by a user. The data of the keyboard 11 is encoded into key data. The infrared modulator 13 modulates the key data generated by the encoder 12 into an infrared signal, and the infrared signal amplifier 14 amplifies the modulated infrared signal to a predetermined level. The infrared transmitter 15 transmits the amplified infrared signal.

In order to receive the infrared signal transmitted as described above in a personal computer, a separate infrared receiver is required, and the separate infrared receiver 16 receives the infrared rays transmitted by the infrared transmitter 15 and then is suitable for a personal computer. The signal is converted into a signal and transmitted to the P / C controller 17 by the infrared signal received through the cable 19 which can be connected to the main body of the personal computer.

Then, the P / C controller 17 analyzes the signal transmitted through the cable 19 to execute the corresponding program or to perform the appropriate control operation, and to control the monitor 18 and the received program or received program. Control to monitor data.

However, such a conventional technology does not receive an infrared signal directly from a personal computer main body, uses an external separate infrared receiver, and requires a separate interface device and a cable to receive a signal received by the infrared receiver. In addition, there is a problem in that it is very inconvenient to use because additional work is required to access the PC.

In addition, since only the infrared transmitter is provided in the keyboard or the like, power consumption is increased when the keyboard and the main body are connected using a cable without using infrared rays.

In addition, the P / C main body and the monitor must be coupled, when connecting an external infrared receiver has also a problem that the installation structure is complicated and inconvenient.

Therefore, the present invention has been proposed to solve the above problems of the prior art,

SUMMARY OF THE INVENTION An object of the present invention is to add an infrared receiver to a monitor to receive an infrared signal from the monitor itself, and to add a wake-up function to the infrared transmitter to minimize power consumption. To provide.

Infrared transmission device according to the present invention for achieving the above object,

Wake-up signal generating means for detecting a key is provided in the keyboard or X-Y coordinate conversion remote control constituting the key input means for generating a wake-up signal;

Key sensing and wake-up determining means for detecting a signal generated from said key input means when a wake-up signal is generated from said wake-up signal generating means and generating a key signal corresponding thereto;

An encoder for encoding the key signal generated by the key sensing and wake-up determining means into key data;

A counter and a timer for generating a pulse waveform for infrared modulation;

Infrared signal converting means for converting key data obtained from the encoder into an infrared signal using pulse waveforms generated by the counter and timer;

Characterized in that the infrared transmission means for transmitting the infrared signal generated by the infrared signal conversion means.

The wake-up signal generating means may include an oragate for ORing each key signal of the key input means, and a wake-up signal generator for generating a wake-up signal with the output signal of the oragate. do.

Infrared receiver according to the present invention for achieving the above object,

Infrared receiving means for receiving infrared rays through an infrared receiving window provided at a predetermined position of the monitor and converting the infrared signals into electrical signals;

A monitor control micom that receives and analyzes the signal output from the infrared receiver and controls the monitor user control means or outputs the analyzed data according to the analysis result;

And a PS2 adapter for transmitting the received data output from the monitor control microcomputer to the personal computer main body.

In the above description, the monitor control microcomputer includes: a data constitution unit for recognizing a signal output from the infrared receiver and reconstructing the signal into a standard signal; A data converter which codes the data obtained by the data constructor and converts the data into a personal computer basic signal; A counter and a timer for generating a pulse waveform corresponding to a signal used in the personal computer; And a waveform converting unit converting the basic signal obtained from the data converting unit into a personal computer signal using the pulse waveform generated by the counter and the timer, and transferring the basic signal to the PS2 adapter.

1 is a block diagram of a receiver for receiving an infrared signal in a conventional personal computer and a transmitter for transmitting an infrared signal to the receiver;

2 is a block diagram of an infrared ray transmitting apparatus according to the present invention;

Figure 3 is a schematic configuration diagram of a monitor having an infrared receiving window in the present invention,

4 is a block diagram of an infrared receiver of a personal computer according to the present invention;

5 is a detailed block diagram of the monitor control unit of FIG.

<Explanation of symbols for main parts of drawing>

100: key input unit 110: wake-up signal generation unit

120: key detection and wake-up determination unit

130: encoder 140: infrared signal converter

150: counter and timer 160: infrared transmitter

210: infrared receiver 220: infrared receiver

230: monitor control microcomputer 240: monitor user control unit

250: PS2 Adapter

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above in detail.

2 is a block diagram of an infrared transmitter according to the present invention.

As shown, a wake-up signal generation unit for detecting a key 101 to 101 + n provided in the keyboard or the XY coordinate conversion remote controller constituting the key input unit 100 to generate a wake-up signal ( 110 and, when a wake-up signal is generated from the wake-up signal generator 110, a key detection and wake-up determination that detects a signal generated by the key input unit 100 and generates a key signal corresponding thereto. The encoder 120 encodes the key signal generated by the key sensing and wake-up determination unit 120 into key data, and a counter and timer 150 generating a pulse waveform for infrared modulation. And an infrared signal converter 140 for converting the key data obtained from the encoder 130 into an infrared signal using the pulse waveform generated by the counter and the timer 150, and generated by the infrared signal converter 140. Infrared signal Subject is composed of an infrared transmitter 160.

In the above description, the wake-up signal generator 110 generates an wake-up signal based on an OR gate 111 for ORing each key signal of the key input unit 100 and an output signal of the OR gate 111. The wake-up signal generator 112 is configured.

The infrared transmission device configured as described above has an OA gate in the wake-up signal generator 110 when a corresponding signal is generated when the coordinates of the XY coordinate conversion remote controller in the key input unit 100 or a key provided on the keyboard is pressed. 111 combines the results and transfers the result to the wake-up signal generator 112. That is, when a plurality of keys provided in the key input unit 100 are not all operated, the output of the oragate 111 becomes a low signal 0 and is transmitted to the wake-up signal generator 112, in this case, wake The up signal generator 112 does not generate any signal. At this time, the encoder 130, the infrared signal converting unit 140, the counter and the timer 150, and the infrared transmitting unit 160 in the rear stage are also turned off, thereby preventing power consumption when there is no key input. Next, when any key among the keys of the key input unit 100 is operated, the output of the oragate 111 becomes a high signal 1 and is transmitted to the wake-up signal generator 112, thereby wake-up. The up signal generator 112 generates a wake-up signal so that the infrared transmitter can operate to generate infrared rays, and transmits the wake-up signal to the key detection and wake-up determination unit 120.

The key sensing and wake-up determination unit 120 that receives the wake-up signal generates a key signal corresponding to the manipulated key of the key input unit 100, and the encoder 130 is applied to the generated key signal. Create and print the corresponding key data. That is, when the wake-up signal is generated in the wake-up signal generator 110, the encoder 130, the infrared signal converter 140, the infrared transmitter 160, the counter, and the timer 150 operate. The key sensing only when the wake-up signal is generated by the key sensing and wake-up determining unit 120 is to prevent a malfunction of the key when the wake-up source is insufficient even when the key is detected.

In addition, the infrared signal converting unit 140 converts the key data obtained from the encoder 130 into an infrared signal using the pulse waveforms obtained from the counter and the timer 150. The converted infrared signal is the infrared transmitting unit 160. It is transmitted as an infrared signal through).

Meanwhile, as shown in FIG. 3, the monitor 200 according to the present invention includes an infrared receiving window 210 to receive infrared rays transmitted from the infrared transmitting apparatus at a predetermined position.

When infrared light is received through the infrared light receiving window 210, the infrared light receiving device newly added to the inside of the monitor processes it and delivers it to the main body of the personal computer.

Figure 4 is a block diagram of an infrared receiver provided in the monitor according to the present invention.

As shown therein, an infrared receiver 220 for receiving infrared rays through an infrared receiver window 210 provided at a predetermined position of the monitor 200 and converting the infrared signals into electrical signals is output from the infrared receiver 220. A monitor control micom 230 for receiving a signal and analyzing the signal and controlling the monitor user controller 240 or outputting the analyzed data to a personal computer main body, and a reception output from the monitor control micom 230. It is composed of a PS2 adapter 250 that delivers data to the personal computer body.

Here, the monitor control microcomputer 230 recognizes a signal output from the infrared receiver 220, reconstructs it into a standard signal, and outputs the data component 231 and the data obtained from the data component 231. A data converter 232 for coding and converting the signal into a personal computer basic signal, a counter and timer 234 for generating a pulse waveform corresponding to a signal used in the personal computer, and a pulse generated by the counter and timer 234 Waveform converter 233 converts the basic signal obtained from the data converter 232 into a personal computer signal as a waveform and delivers the signal to the PS2 adapter 250.

In the infrared receiver according to the present invention configured as described above, when the infrared rays transmitted from the infrared transmitter pass through the infrared receiver window 210 provided at a predetermined position of the monitor 200, the infrared receiver 220 receives the infrared receiver 220. . Then, the monitor control microcomputer 230 analyzes the received infrared signal to determine whether to control the monitor user controller 240 or transmit the received signal to the personal computer main body, and process the received signal accordingly.

That is, as shown in Figure 5, the data configuration unit 231 recognizes the input data, reconstructs it into a standard signal for data conversion and delivers it to the data conversion unit 232. The data converter 232 then codes the transmitted data to generate a basic signal for transmission to the personal computer. Accordingly, the waveform converter 233 converts the waveform into a signal that can be recognized by the personal computer using the pulse waveform generated by the counter and timer 234 to convert the waveform into a signal that can be recognized by the personal computer. 250).

Then, the PS2 adapter 250 transmits the transmitted signal to the main body of the personal computer, and the following operations are performed in the same manner as the operation of a conventional general personal computer. The PS2 adapter 250 is basically an adapter mounted in a general PC, and is an interface unit for data transmission and reception between the personal computer main body and the monitor.

If the received signal analyzed by the monitor control microcomputer 230 is a signal for controlling the monitor user controller 240, the monitor control microcomputer 230 directly controls the monitor user controller 240. Here, the user control functions include contrast adjustment and bright adjustment.

Meanwhile, as another embodiment of the present invention, the monitor control microcomputer 230 is implemented in hardware (H / W). However, this is simply performed by changing only the software of the existing monitor control microcomputer (S / W). It can be implemented and PS2 adapter can be used for wired and wireless. In this case, when using the PS2 adapter wirelessly, a separate wireless receiver must be provided in the main body.

In addition, when multiple infrared transmitters and receivers are mixed in a large space, in order to avoid mutual interference, adding a device that assigns a unique address to the transmitter and receiver may cause interference even when multiple infrared transmitters and receivers are mixed. Can be avoided.

As described above, the present invention implements an infrared receiver using a configuration of an existing monitor, thereby adding inconvenience to connecting an infrared receiver to a main body using an additional infrared receiver or using a cable. It can solve the problem, and it is also possible to reduce the installation cost of the infrared receiver.

In addition, by adding a wake-up function to the device for transmitting infrared rays, there is an advantage of preventing a key input error and preventing power consumption when not in use.

Claims (1)

An encoder for encoding a key signal into key data, a counter and timer for generating a pulse waveform for infrared modulation, an infrared signal converter for converting key data into an infrared signal using the pulse waveform, and an infrared transmitter for transmitting infrared rays An infrared transmitting device; An infrared ray transmitting / receiving device of a computer system having an infrared ray receiving device including an infrared ray receiving unit for receiving infrared rays generated by the infrared ray transmitting device, The infrared transmitting / receiving device, A wake-up signal generating means which is provided in the infrared transmitting apparatus and generates a wake-up signal when a key provided in a keyboard or an X-Y coordinate conversion remote controller which constitutes a key input means in a standby state is pressed; Key sensing and wake-up determining means provided in the infrared transmitting apparatus and detecting a key input signal only when the wake-up signal is generated and transmitting a corresponding key signal to the encoder; In the infrared receiving apparatus, when the key signal is received from the infrared receiver in the power saving mode, the monitor is directly controlled by the user control means to activate the monitor, and the received key signal is converted into a personal computer signal to a computer through a PS2 adapter. Infrared transmitting / receiving device, characterized in that configured to include a monitor control microcomputer to be transmitted to the main body.