KR200307339Y1 - A wireless communication system for computer - Google Patents

Abstract

The present invention is a portable transmitter having a security function and a code receiver built into the computer, the power of the computer can be controlled in hardware instead of the power switch of the existing computer, and if necessary, the computer sound by the portable transmitter The present invention relates to a wireless transmission / reception system for a computer having a function of wirelessly transmitting and listening through a dedicated sound receiver or a general sound receiver and preventing theft of internal components of the computer.

The present invention, a sensor built into the computer to detect it when the computer case is disassembled; A portable transmitter with a switch for remotely controlling the power on of the computer; And a code receiver installed inside the computer case and connected to a power terminal of the computer board to turn on the computer by a signal wirelessly transmitted from the portable transmitter, and generate an alarm sound by the signal of the sensor. In addition, the portable transmitter is connected to the analog sound output terminal of the sound card of the computer by a wiring connector, and receives the analog sound of the computer input through the connection terminal in a dedicated receiver or a conventional tuner or wireless headset. The apparatus further includes a wireless transmitter for modulating and transmitting wirelessly.

Description

Wireless communication system for computer {A wireless communication system for computer}

The present invention is a portable transmitter having a security function and a code receiver built into the computer, the power of the computer can be controlled in hardware instead of the power switch of the existing computer, and if necessary, the computer sound by the portable transmitter The present invention relates to a wireless transmission / reception system for a computer having a function of wirelessly transmitting and listening through a dedicated sound receiver or a general sound receiver and preventing theft of internal components of the computer.

As is well known, techniques for allowing wireless headsets to receive and listen to sound output from a computer as wireless headsets are popularized have been disclosed by prior applications.

As these prior applications, Korean Patent Application No. 2000-31035 describes a circuit of a wireless voice transmitting device, Korean Patent Application No. 2000-28003 uses a computer wireless transceiver system, and Korean Utility Model Application No. 2001-9531 Regarding a speaker for a computer using a headset, Korean Patent Application No. 2000-50780 discloses a listening system for listening to a computer voice signal using a wireless telephone and a wireless telephone.

However, the above-mentioned prior arts deal only with the technology that enables the wireless transmission and reception of sound using a computer, and there is no technology applied to the following technical fields.

First, as a part related to the prevention of theft of computer parts, conventionally, there was no means for alarming against theft accidents by disassembling the computer case and stealing expensive major parts.

Second, as for the security of the computer, there was no computer security measures of the hardware method. In other words, in the past, a software method that allows a user to set a password as a security measure to prevent other people from turning on the computer and seeing the stored data unnecessarily is likely to be exposed to the password and is easily solved by a computer expert. There is a concern, and therefore, it is necessary to find a way to secure the computer by hardware method.

The present invention devised in view of the above points is a portable transmitter having a security function and a code receiver built into the computer, which can control the power of the computer in place of the existing power switch, as well as the internal parts of the computer. A first object of the present invention is to provide a wireless transmission / reception system for a computer having a function of preventing theft.

The second object of the present invention is a wireless computer for a computer, in addition to the above-described first object, a function of allowing the portable transmitter to wirelessly transmit the computer sound when necessary, so that it can be listened through a dedicated sound receiver or a general sound receiver. In providing a transmission and reception system.

1 is a block diagram showing the overall circuit configuration of the present invention,

2 is a detailed circuit diagram of the transmitter side of the present invention;

3 is a detailed circuit diagram of the receiver side of the present invention;

4 is an exploded perspective view for explaining the installation state of the present invention,

Figure 5 is an exploded perspective view of the installation state for explaining an example of applying the portable transmitter of the present invention to a wireless mouse.

Explanation of symbols on the main parts of the drawings

3-sensor 4-handheld transmitter

6-Code Receiver 8-Sound Receiver

11-Computer Case Circuit Board 12-Circuit Board

13-Power switch connector 14-Analog sound output terminal

41-switch 42-data code generator

43-address code generator 44-encoder

46-wireless transmitter 61-wireless receiver

62-signal processor 63-decoder

64-Address code generator 65-PC power connection

662-Computer Power Supply 663-Charger

672-Sensor monitoring part 673-Alarm signal generating part

674-Amplifier 675-Speaker

The first object of the present invention described above,

A sensor built into the computer to detect when the computer case is disassembled;

A portable transmitter with a switch for remotely controlling the power on of the computer;

It is installed inside the computer case and is connected to the power terminal of the computer board, and achieved by the configuration of a code receiver that turns on the computer power by a signal transmitted wirelessly from the portable transmitter and generates an alarm sound by the signal of the sensor. Can be.

The second object of the present invention described above, in the configuration to achieve the first object of the present invention, the portable transmitter is connected to the analog sound output terminal of the sound card of the computer by a wiring connector, and It can be achieved by a configuration further comprising a wireless transmitter for modulating and wirelessly transmitting the analog sound of the computer input through the connection terminal in a conventional tuner or a wireless headset.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the overall circuit configuration of the present invention, Figure 2 is a detailed circuit diagram of the transmitter side of the present invention, Figure 3 is a detailed circuit diagram of the receiver side of the present invention, Figure 4 is an installation state of the present invention 5 is an exploded perspective view for explaining, Figure 5 is an exploded perspective view of the installation state for explaining an example of applying the portable transmitter of the present invention to a wireless mouse.

1 and 4, the present invention is divided into a sensor 3, a portable transmitter 4, a code receiver 6, and a sound receiver 8 in unit construction.

The sensor 3 is installed in the computer so that the sensor 3 can detect the disassembly of the case 11 of the computer. The sensor 3 may be employed among a magnetic sensor, an infrared sensor, and a switch installed in the computer so as to detect the opening of the computer case 11.

In the case of the magnetic sensor, a magnet 3b constituting the magnetic sensor and a switch 3a which is turned on and off depending on the access of the magnet are provided on the case 11 and the computer side, respectively, and the switch 3a is installed on the receiver 6. It is configured to be able to transfer the open detection signal of the case 11 to the receiver 6 by connecting to).

In the case of the infrared sensor, like the magnetic sensor, the infrared transmitter and receiver may be installed in the computer and the case, and the infrared receiver may be connected to the receiver 6 so that the signal can be transmitted to the receiver 6.

The portable transmitter 4 is provided with a wireless transmitter 46 and a connection terminal 402 is formed outside the body. The connection terminal 402 is connected to the analog sound output terminal 14 of the sound card of the computer by the wiring connector 52 to receive an analog sound signal. The wireless transmitter 46 modulates and transmits the analog sound of the computer input through the connection terminal 402 so that it can be received by a conventional tuner, a wireless headset, or a dedicated sound receiver 8.

The portable transmitter 4 is also provided with a switch 41 for manipulating the on / off of the computer power supply. The portable transmitter 4 and its switch 41 can be applied to a conventional wireless mouse as shown in FIG.

1 and 2, the portable transmitter 4 generates a data code generator 42 for generating a plurality of bits of data codes according to an operation signal of the switch 41, and generates a plurality of bits of address codes. An encoder 44 for outputting a coded signal by combining an address code generator 43, a data code of the data code generator 43 with an address code of the address code generator 43, and an output from the encoder 44 And a wireless transmitter 46 for modulating and transmitting the signal wirelessly. In addition, a battery 49 for supplying operating power to the circuits of the portable transmitter 4 should be provided.

1 and 3, the code receiver 6 includes a wireless receiver 61 for amplifying and tuning a signal transmitted from the wireless transmitter 46 of the portable transmitter 4, the wireless receiver ( A signal processor 62 for demodulating and amplifying the coded signal output from the encoder 44 from the signal tuned by 61, and the coded signal output from the signal processor 62 is generated by the address code generator 64. A decoder 63 for decoding by an address code and outputting the data code generated by the data code generator 42 of the portable transmitter 4, and a computer using the data code output from the decoder 63 as a signal. It is composed of a computer power connector 65 for connecting a power source.

The computer power connector 65 connects the movable contact side of the relay K1 on and off according to the output of the integrated device IC12 of the decoder 63 to a power switch instead of a conventional computer power switch. It can be connected to the power switch connecting terminal (13).

The operation of the present invention configured as described above will be described in detail with the addition of the circuit description of FIGS. 2 and 3.

When the user carries the portable transmitter 4 and wants to turn on the computer, pressing the switch 41 provided in the portable transmitter 4 turns on the computer. Specifically, the operation of the switch 41 included in the portable transmitter 4 causes the current to flow through the switch 41 so as to apply a high level voltage to pin 12 of the integrated device IC1 of the encoder 44. The high-level voltage generates a data code of '0001' at the data code generator 42 connected to pins 12 to 15 of the encoder integrated device IC1 and inputs the data code to the encoder integrated device IC1. The coded signal is output to pin 19 by combining the data code and the address code generated by the address code generator 43. The coded signal thus output is applied to the radio transmitter 46 and applied to the base of the switching transistor Q1 through the coupling capacitor C11, and the collector of the transistor Q1 is connected to the capacitors C7 and the baricone VC1 via the capacitors C4, C5, and C6. The carrier frequency resonated and oscillated by the coil L2 and the coded signal applied to the base of the transistor Q1 are frequency modulated and transmitted by radio waves.

The radio wave transmitted as described above is received and tuned to the radio receiver 61 of the code receiver 6 installed in the computer case 11, and then demodulated and low frequency amplified by the signal processor 62. When the coded signal is input, the decoder 63 integrated device IC12 decodes the address code generated by the address code generator 64 to decode the data code generator of the portable transmitter 4. According to the presence or absence of the data code generated at 42, a 4-bit data signal for informing the switch 41 on state of the portable transmitter 4 is output to pins 12 to 15. By operating the relay K1 to connect the movable contact, the two pins of the terminal 13 provided on the computer circuit board 12 are connected to perform the same action as turning on the power switch of a conventional computer. Since the computer's power is turned on.

In addition, when wirelessly transmitting a sound signal output from a computer sound card, one side of the wiring connector 52 is connected to the analog output terminal 14 of the computer sound card, and the other side of the wiring connector 52 is a portable transmitter. After connecting to the analog input terminal 402 of (4) and operating a computer to output sound, the computer input through the analog input terminal 402 of the wireless transmitter 46 provided in the portable transmitter (4) As the output sound signal is attenuated by a predetermined level by the resistor R15 used as the gain control unit 473 and then applied to the base of the switching transistor Q1 through the coupling capacitor C10 and the resistor R12, the collector of the switching transistor Q1 is used in the encoder described above. The carrier frequency oscillated and oscillated by the capacitors C4, C5, C6, C7, and the silicon VC1 and the coil L2 in the same manner as in the coded signal transmission of (44) and the sound It is sent a signal to the frequency modulated radio waves.

The radio wave thus transmitted is received by the analog receiver 82 provided in the dedicated sound receiver 8, and the demodulated analog sound signal is output as an audible sound through the speaker 84, so that the user hears the sound output from the computer. You can do it. In the case of a large number of computers, in order to prevent crosstalk between the various transceivers 4 and 8, the frequency bandwidth may be set differently according to the adjustment of the barrier VC1 to use multiple channels. On the other hand, it is of course possible to listen to the output sound of the computer transmitted from the portable transmitter 4 through the home audio having a tuner in addition to the dedicated sound receiver (8).

On the other hand, when the intruder disassembles the computer case 11 in order to steal parts or the like, the on signal of the magnetic switch 3a used as the sensor 3 is transmitted to the input terminal 602 of the code receiver 6. The transistor Q5 of the sensor monitoring unit 672 included in the code receiver 6 is turned on by the signal, and a high level signal is applied to pin 11 of the integrated device IC13 of the alarm signal generating unit 673. In this way, the pre-stored alarm sound is output from pin 6 of the alarm signal generator 673 which is triggered and amplified by the integrated device IC14 of the amplifier 674, and then output as an audible alarm sound through the speaker 675. This allows nearby people to check the disassembly of the computer.

As described above, the present invention removes the power switch of the existing computer and enables the remote control of the power of the computer by a portable transmitter having a security function and a code receiver built in the computer. It is possible to prevent the theft of the internal parts of the computer by the sensor that detects the opening of the case, and when necessary, the portable transmitter can be connected to the computer to wirelessly transmit the computer sound, so that It is useful with the ability to listen through a general sound receiver.

Claims (6)

A sensor built into the computer to detect when the computer case is disassembled; A portable transmitter with a switch for remotely controlling the power on of the computer; It is installed inside the computer case and is connected to the power terminal of the computer board, characterized in that it comprises a code receiver for turning on the power of the computer by a signal transmitted wirelessly from the portable transmitter, and generates an alarm sound by the signal of the sensor Wireless transmission and reception system for a computer. The apparatus of claim 1, wherein the portable transmitter comprises: a data code generator for generating a plurality of bits of data codes according to an operation signal of the switch; An address code generator for generating a plurality of bits of address codes; An encoder for outputting a coded signal by combining the data code of the data code generator with the address code of the address code generator; And a wireless transmitter for modulating and transmitting the signal output from the encoder. The code receiver includes: a wireless receiver for amplifying and tuning a signal transmitted from the wireless transmitter; A signal processor for demodulating and amplifying the coded signal output from the encoder from the signal tuned by the wireless receiver; A decoder which decodes the coded signal output from the signal processor by the address code generated by the address code generator and outputs the data code generated by the data code generator of the portable transmitter; And a computer power connection unit for connecting a computer power source using the data code output from the decoder as a signal. The portable transmitter of claim 1, wherein A connection terminal is provided to be connected to an analog sound output terminal of a sound card of a computer by a wiring connector, and the analog sound of the computer input through the connection terminal can be received by a dedicated sound receiver or a conventional tuner or wireless headset. A wireless transmitting and receiving system for a computer, characterized by comprising a wireless transmitting unit for modulating and transmitting wirelessly. [4] The wireless transceiver system of claim 3, further comprising a dedicated receiver having an analog sound wireless receiver which receives the analog sound transmitted from the portable transmitter and outputs an audible sound through a speaker. 5. A wireless transmit / receive system for a computer according to any one of claims 1 to 4, wherein said portable transmitter is implemented with a conventional wireless mouse. The method of claim 1, wherein the code receiver, A computer power supply unit for connecting the power of the computer to the entire circuit; It is provided with a charging unit for charging the power supplied from the computer power supply unit to supply the preliminary power to the entire circuit of the receiver when the power supply of the computer is cut off, The sensor includes a sensor monitoring unit for switching the power supplied from the computer power supply unit according to whether the computer case is opened or closed, and monitors the switched power, An alarm signal generation unit which is triggered by the monitoring signal of the sensor monitoring unit and outputs a specific alarm signal stored in advance; An amplifier for amplifying the signal output from the alarm signal generator; And a speaker for outputting the signal output from the amplifying unit as an audible sound.