KR200304354Y1 - A multi function wireless communication system - Google Patents

Abstract

The present invention is a multifunctional computer having an anti-theft function of computer accessories in connection with the computer sound wireless transmission function that can normally listen to the computer sound by wireless transmission and reception, and alerts it when the theft of computer accessories occurs. The present invention relates to a wireless transmission and reception system.

The present invention uses the sensor built into the computer and the analog sound output from the computer sound card using the power supplied from the computer's serial port as the main power to detect it when the computer case is disassembled. Wireless transmission so that the headset can receive, and if the detection signal is applied from the sensor when the computer case is disassembled, it is encoded and transmitted as an encoded signal, and the alarm sound when cutting the serial port power line or signal line of the sensor A multi-function transmitter for wireless transmission of a signal, and a receiver for displaying or alarming the signal and the status of the one or more computers in which the case is disassembled or the main power is cut by decoding the received and encoded signals transmitted from the transmitter. It consists of.

Description

Wireless transmit / receive system for multifunctional computer {A multi function wireless communication system}

The present invention relates to a wireless transmission and reception system for a computer, and more specifically, a computer sound wireless transmission function that allows a user to listen to computer sound by wireless transmission and reception, and when the theft of a computer accessory occurs, the alarm is identified. The present invention relates to a wireless transmission / reception system for a multifunctional computer having an anti-theft function of computer accessories.

As is well known, technologies are disclosed by a prior application to allow wireless headsets to transmit and receive sound output from a computer as wireless headsets are popularized.

As these prior applications, Korean Patent Application No. 2000-31035 describes a circuit of a wireless voice transmitter, 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 therefore, the conventional technology requires a supplementary measure applied to the following technical fields.

First, there was no means to effectively monitor the theft of computer accessories in the PC room where theft of computer parts is frequently occurring. In addition, when not only a PC room but also a normal home connected to a computer and a wireless transmission device, a means for appropriately alarming in case of theft taking a cut between them has not been devised.

Second, the wireless transmitter is not designed to be supplied with computer power by a simple structure, but is to be separately supplied. Therefore, a separate power wire or a battery is required to supply power to the wireless transmitter. There was this.

The present invention devised in view of such a conventional problem is to connect the computer sound wireless transmission function and the anti-theft function of the computer accessories in a simple configuration by using a system that can wirelessly transmit and receive the sound output from the computer It is an object of the present invention to provide a multifunctional wireless transmit / receive system for a computer that can prevent accessory theft.

1 is a perspective view showing a configuration concept of the present invention,

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

3 is a circuit diagram of the transmitter side of the present invention,

4 is a circuit diagram of the receiver side of the present invention.

Explanation of symbols on the main parts of the drawings

2-Sensor 4-Multifunctional Transmitter

6-Receiver 12-Computer Case

13-Serial Port 14-Sound Card Analog Output

PL-Power Line SL-Sensor Wire

40-Theft Monitoring Unit 41-Signal Processing Unit

42-Data code generator 43-Encoder

44-Address code generator 45-Sensor line monitor

47-Power line monitoring unit 48-Alarm signal generating unit

49-Wireless Transmitter 52-Analog Sound Processor

61-Analog receiver 62-Speaker

63-High Frequency Amplifier 64-Tuning Unit

65-Demodulation 66-Low Frequency Amplification

67-Decoder 68-Address Code Generator

69-Display 466-Power Section

467-Charger 482-Amplifier

492-Multiple Inputs 521-Analog Inputs

522-gain control unit

The present invention for achieving the above object,

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

Using the power supplied from the serial port of the computer as the main power, the analog sound output from the sound card of the computer can be transmitted wirelessly so that it can be received by a conventional broadcast receiver or a wireless headset, and detected by the sensor when the computer case is disassembled. A multi-function transmitter which encodes the signal as an encoded signal when the signal is applied and wirelessly transmits the signal, and wirelessly transmits an alarm sound when the signal line of the serial port power line or the sensor is cut off;

A receiver for displaying or alarming a signal transmitted from the transmitter and decoding an encoded signal so as to check the status and theft status of one or more computers whose case is disassembled or the main power is cut off;

It provides a computer sound wireless transmission system having a computer sound wireless transmission function and the anti-theft function of computer accessories, characterized in that consisting of.

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

1 is a perspective view showing a configuration concept of the present invention, Figure 2 is a block diagram showing the overall circuit configuration of the present invention, Figure 3 is a circuit diagram for the transmitter side of the present invention, Figure 4 is a receiver side of the present invention This is a circuit diagram.

Referring to FIG. 1, the present invention is divided into a sensor 2, a multifunctional transmitter 4, and a receiver 6 in a unit configuration.

The sensor 2 is installed in the computer so that it can detect when the computer case 12 is disassembled.

Referring to FIG. 2, the multi-function transmitter 4 uses analog power output from the sound card analog output terminal 14 of the computer by using power supplied from the serial port 13 of the computer as a main power source. Wireless transmission to be received by the wireless headset, when the detection signal is applied from the sensor 2 at the time of disassembly of the computer case 12 encodes it as an encoded signal for wireless transmission, and the serial port power line (PL) Or wirelessly transmit an alarm sound upon cutting the signal line SL of the sensor.

The receiver 6 decodes a signal transmitted from the transmitter 2 and decodes an encoded signal to generate an indication or alarm so as to confirm the status and theft status of one or more computers whose case is disassembled or the main power is cut off. It is configured to.

The sensor 2 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 12.

In the case of the magnetic sensor, a magnet 2b constituting the magnetic sensor and a switch 2a which is turned on and off depending on the access of the magnet are provided on the case and the computer side, respectively, and the switch 2a is installed on the multifunction transmitter 2. By connecting to the case 12 is configured to transmit a signal when opening.

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 receiver may be connected to the transmitter.

2 and 3, the multi-function transmitter 4,

A wireless transmitter 49 which modulates an input signal and wirelessly transmits the signal, an anti-theft monitoring processor 40 which encodes a signal applied from the sensor 2 as an encoded signal and applies it as an input signal of the wireless transmitter; An analog sound processor 52 for gain control of the sound signal from the sound output port 14 of the sound card and applied as an input signal of the wireless transmitter 49, and power supplied from the serial port 13 of the computer. The power supply unit 466 for supplying the main power of the multifunction transmitter as a whole, the charging unit 467 charged by the main power supply of the power supply unit 466 and supplying the preliminary power when the main power is cut off, and the serial port 13. The power line monitoring unit 47 outputs a signal detected when the power is cut off, and the sensor line monitoring unit monitoring the cutting of the signal line SL of the sensor 2 and the anti-theft monitoring unit 40 ( 45 and an alarm signal generator 48 for generating an alarm signal by signals from the power line monitoring unit 47 and the sensor line monitoring unit 45 and applying it as an input signal of the wireless transmitter 49. do. The rear end of the alarm signal generator 48 may be provided with a separate amplifier circuit (IC4) according to the level of the alarm signal.

The anti-theft monitoring unit 40 receives a sensor signal, generates a pulse signal, generates a pulse signal, an address code generator 44 generating a plurality of address codes, and the pulse signal is applied. A data code generator 42 for generating a plurality of bits of data codes capable of distinguishing whether the sensor 2 is detected; And an encoder 43 for encoding the data code generated by the data code generator 42 in combination with the address code generated by the address code generator 44 and outputting the encoded code to the wireless transmitter 49.

2 and 4, the receiver 6,

A high frequency amplifier 63 for amplifying a received radio signal, a tuner 64 for tuning a radio signal transmitted from the multifunction transmitter among the signals amplified by the high frequency amplifier 63, and the tuner 64 A demodulator 65 for demodulating the signal output by being tuned at < RTI ID = 0.0 >) < / RTI > and obtaining a coded signal generated by encoder 43 (IC1) of the multifunction transmitter, and a low frequency amplifying the coded signal demodulated by the demodulator 65. The data code generator 42 of the multifunctional transmitter 4 decodes the amplification unit 66 and the coded signal amplified by the low frequency amplifier 66 based on the address code generated by the address code generator 68. And a decoder 67 for outputting a multi-bit signal that can identify the stolen state of the computer and the computer identification that can be distinguished in the case of a plurality of computers.

The receiver 6 receives an analog sound transmitted from the multifunctional transmitter 4 and outputs an audible sound through the speaker 62, and uses an analog receiver 61 using a conventional radio or a dedicated receiver. By further providing the sound card, the alarm sound which can confirm the disconnection of the sensor line SL and the power line PL, etc. can be heard through the speaker 62.

In addition, the receiver 6 further includes a display device 69 for displaying a number or letter for notifying the computer number of the stolen state in accordance with the multi-bit signal output from the decoder 67, thereby preventing theft and theft situation. It is possible to visually check the computer origin.

The operation of the system of the present invention configured as described above will be described in detail with reference to FIG. 4.

When sound is transmitted through a sound card of a normal computer, a sound signal is input from a computer sound output terminal to an analog input terminal of the wireless transmitter 49 constituting the multifunction transmitter 4, and the sound signal is a gain control unit 522. As a predetermined level is attenuated by the resistor R16 used as) and applied to the base of the switching transistor Q3 through the coupling capacitor C11 and the resistor R13, the collector of the switching transistor Q3 is connected to the capacitor C8 via the capacitors C5, C6 and C7. And a carrier frequency oscillated and oscillated by the silicon VC1 and the coil L2 and the sound signal are transmitted through a frequency-modulated radio wave. The radio wave thus transmitted is received by the analog receiver 61 provided in the receiver 6 and the demodulated analog sound signal is output as an audible sound so that the user can listen to the sound output from the computer. In the case of a large number of computers, the frequency bandwidth may be set differently according to the adjustment of the barrier VC1 to use a plurality of channels. On the other hand, in addition to the analog receiver 61 provided in the receiver 6 can be heard of the sound output from the computer through the home audio having a tuner.

When the computer case 12 is opened in an attempt to remove the main accessories of the computer by the invader while the computer is in use, the magnetic switch contact CON1 used as the sensor 2 is turned on. The voltage rise waveform generated when the power supply voltage VDD is supplied turns on the transistor Q2 through the capacitor C2 constituting the signal processing unit 41 provided in the multifunctional transmitter 4 module. Thus, the current supplied through the transistor Q2 turns on the transistor Q1. By turning on, the power supply voltage VDD is switched to the transistor Q1 and applied to the pin 12 of the encoder 43 integrated device IC1 as a signal through the resistor R3. Pins 12 to 15 of the encoder integrated device IC1 are parts for generating a 4-bit data code, so that a signal applied through the resistor R3 is applied to another terminal to change the data code.

The encoder 43 of the integrated device IC1 combines the input data code and the address code input from the address generator to output serial transmission data, that is, a phase data signal of a square wave, through pin 19 to output the transmitter 4 of the transmitter 4. By being input to the encoder signal input terminal, the output signal of the encoder 43 is modulated to a carrier wave and transmitted by radio waves as in the computer sound radio transmission described above.

The signal transmitted by the radio wave is amplified by the high frequency amplifier 63 of the receiver 6, the channel frequency transmitted by the tuner 64 is tuned, demodulated by the demodulator 65, and the low frequency amplifier 66 Amplified by the decoder 67 and input to pin 16 of the decoder 67 integrated device IC12. When the coded signal is input in this manner, the decoder 67 integrated device IC12 decodes the address code generated by the address code generator 68 to detect whether the data code generated from the theft monitoring unit 40 of the multifunctional transmitter 4 is present. As a result, a 4-bit data signal for informing an ON state of the magnetic switch used as the sensor 2 is outputted to pins 12 to 15. The 4-bit data signal output from the integrated circuit IC12 of the decoder 67 is data for making numbers or letters in the display 69 such as an LCD or a FND. The code is used to indicate the computer number.

On the other hand, the intruder knows that the sensor 2 and the transmitter 4 are installed to monitor the disassembly of the computer case 12, so that the intruder disconnects or disassembles the sensor line SL or the power supply line PL of the transmitter. In this case, the present invention can generate an alarm.

Referring to FIG. 3, a high level signal is input to the trigger terminal pin 11 of the integrated device IC3 of the alarm signal generator 48 in normal operation.

At this time, when the sensor line SL connected between the sensor 2 and the signal processor 41 of the multifunctional transmitter 4 is disconnected, the power supply VDD forms the sensor line monitor 45 through the sensor line SL. Since the applied to the base of the circuit is cut off, the transistor Q4 is turned off so that the voltage level input to pin 11, the input terminal of the integrated device IC3 of the alarm signal generator 48, is changed to the low level.

In addition, by disconnecting the jack connecting the serial port 13 of the computer and the multi-function transmitter 4 of the present invention, or by disconnecting the wire and disconnecting the power line PL for supplying power from the serial port 13, the power supply unit Since the power supply to 466 is cut off, the base power supply of the transistor Q5 of the power line monitoring unit 47 goes to a low level, so the transistor Q5 is turned off to pin 11 of the input terminal of the integrated device IC3 of the alarm signal generator 48. The voltage level input to is changed to the low level. If the power supply is cut off, the power accumulated in the charging unit 467 is supplied to the emergency power through the VDD OUT terminal. The VDD supply can also be supplied through a separate adapter.

As such, when the voltage level of pin 11 changes to a low level, the integrated device IC3 of the alarm signal generator 48 outputs a prestored voice signal through pin 6 and amplifies the integrated device IC4 of the amplifier 482. After that, the audio signal is applied to the input terminal of the radio transmitter 49 so that the voice signal is carried on the carrier wave and transmitted at a high frequency.

As such, the signal transmitted at a high frequency is received and demodulated through the analog receiver 61 of the receiver 6 and output as an audible sound through the speaker 62 so that the user disconnects the power line PL and the sensor line SL. You will be able to check.

As described above, the present invention is operated by a power source supplied from a computer to implement a computer sound wireless transmission function that can normally listen to computer sound remotely by a wireless transmission and reception function, and to extort computer accessories. In case of disassembly of the computer case or line break to forcibly cut off the power supply and sensor signal, it has the effect of implementing the anti-theft function to alert the user as a wireless signal so that the user can identify it. Therefore, it is possible to effectively monitor the theft of computer accessories as well as wireless listening to computer sounds in homes, offices, PC rooms, and the like.

Claims (7)

A sensor built into the computer to detect when the computer case is disassembled; Using the power supplied from the serial port of the computer as the main power, the analog sound output from the sound card of the computer can be transmitted wirelessly so that it can be received by a conventional broadcast receiver or a wireless headset, and detected by the sensor when the computer case is disassembled. A multi-function transmitter which encodes the signal as an encoded signal when the signal is applied and wirelessly transmits the signal, and wirelessly transmits an alarm sound when the signal line of the serial port power line or the sensor is cut off; A receiver for displaying or alarming a signal transmitted from the transmitter and decoding an encoded signal so as to check the state or theft state of one or more computers whose case is disassembled or the main power is cut off; Computer wireless transmission and reception system having a computer sound wireless transmission function and the anti-theft function of computer accessories, characterized in that consisting of. The method of claim 1, wherein the multifunction transmitter, A wireless transmitter for modulating an input signal and transmitting the wireless signal; An anti-theft monitoring unit for encoding the signal applied from the sensor into an encoded signal and applying the signal as an input signal of the wireless transmitter; An analog sound processor for controlling gain of a sound signal from an audio output port of a sound card of the computer and applying it as an input signal of the wireless transmitter; A power supply unit supplying power applied from the serial port of the computer to supply the main power of the multifunctional transmitter; A charging unit which is charged by the main power of the power supply unit and supplies a reserve power when the main power is cut off; A power line monitoring unit which outputs a signal detected when the power is applied from the serial port; A sensor line monitoring unit which monitors signal lines of the sensor and theft monitoring unit; An alarm signal generator for generating an alarm signal by signals of the power line monitor and the sensor line monitor and applying the signal as an input signal of the wireless transmitter; Computer wireless transmission and reception system having a computer sound wireless transmission function and the anti-theft function of the computer accessories, characterized in that it comprises a. The method of claim 2, wherein the anti-theft monitoring unit, A signal processor which receives a sensor signal and generates a pulse signal; An address code generator for generating a plurality of bits of address codes; A data code generator for generating a plurality of bits of data codes for discriminating whether a sensor is detected when the pulse signal is applied; An encoder for encoding the data code generated by the data code generator in combination with the address code and outputting the encoded code to the wireless transmitter; Computer wireless transmission and reception system having a computer sound wireless transmission function and the anti-theft function of computer accessories, characterized in that consisting of. The method of claim 1, wherein the sensor, A wireless computer wireless transmission and reception system having a computer sound wireless transmission function and anti-theft function of a computer accessory, characterized in that any one of a magnetic sensor, an infrared sensor, and a switch installed in the computer to detect the opening of the computer case. The method of claim 3, wherein the receiver, A computer sound wireless transmission function having a computer sound wireless transmission function and the anti-theft function of the computer accessories, characterized in that it comprises a conventional broadcast receiving unit for receiving the analog sound transmitted from the multi-function transmitter and output as an audible sound through a speaker system. The method of claim 3, wherein the receiver, A high frequency amplifier for amplifying the received wireless signal; A tuning unit for tuning a radio signal transmitted from the multifunction transmitter among the signals amplified by the high frequency amplification unit; A demodulator for demodulating the output signal tuned by the tuner to derive an encoded signal generated by an encoder of the multifunction transmitter; A low frequency amplifier for amplifying the coded signal demodulated by the demodulator; When the coded signal amplified by the low frequency amplification unit is decoded based on the address code generated by the address code generator, the stolen state of the computer and the case of multiple computers according to the presence or absence of the data code generated by the data code generator of the multifunctional transmitter A decoder for outputting a multi-bit signal capable of identifying a computer identification that can be distinguished; Computer wireless transmission and reception system having a computer sound wireless transmission function and the anti-theft function of computer accessories, characterized in that consisting of. The computer sound wireless transmission function and prevention of theft of computer accessories according to claim 6, further comprising a display device for displaying a number or a letter for notifying a computer number of a stolen state according to a multi-bit signal output from the decoder. Wireless transmission and reception system for a computer having a function.