KR200198069Y1 - An wireless network system for transmitting or receiving a data and voice - Google Patents

Abstract

The present invention relates to a wireless network system capable of transmitting and receiving voice and data at the same time.

The wireless network system of the present invention is connected to a public telephone network and a home telephone telephone 100, a plurality of handsets 300 capable of short-range wireless communication with the home telephone telephone 100, and a plurality of handsets connected in serial communication. Consisting of a plurality of computer terminals 400. The mother phone 100 includes a wired modem 180 for data communication and a wireless modem 170 for converting and demodulating data or voice into GPSK modulation signals of 2.4 GHz band. The handset 300 includes the mother phone. Or a wireless modem 370 for converting and demodulating a voice signal or data into a short range wireless signal (a GPSK modulated signal of 2.4 GHz band) for short range wireless communication with another handset; Serial communication interface means 380 for transmitting and receiving data by serial communication with the computer terminal. Therefore, voice communication using wireless is possible between the home telephone and the handset, the handset and another handset, and data communication using wired and wireless communication is possible between computer terminals including external computer terminals connected to the public telephone network.

Description

Wireless network system that can transmit and receive data and voice {AN WIRELESS NETWORK SYSTEM FOR TRANSMITTING OR RECEIVING A DATA AND VOICE}

The present invention relates to a short-range wireless network system, and more particularly to a wireless network system capable of transmitting and receiving voice and data at the same time.

As a standard for digital short-range wireless communication, the GPSK modulation-based Bluetooth, which uses the 2.4GHz ISM band, has been adopted to open a short-range wireless network system.

Recently, a new communication method for simultaneously performing data communication and voice communication using a wireless telephone has been proposed.

In Korean Utility Model Publication No. 1999-008513, a contact jack is attached to a cordless telephone of an existing wired / wireless telephone to take the cordless telephone to a room where a telephone line is not wired, and the contact jack is inserted into a jack of a computer to connect a wired or wireless terminal in another room. Disclosed is a communication apparatus using a wired or wireless telephone that enables PC communication through a telephone and a telephone line so that a computer can be easily operated in a room where the telephone line is not wired.

However, in the case of the radiotelephone, only the modem and the public telephone network of the communication interface to perform a function of a single computer and not to construct a local area network as in the present invention.

In addition, Korean Patent Laid-Open Publication No. 97-59869 discloses that after initializing a system and generating a ring signal for a predetermined time when a ring signal is detected and receiving keyboard data for a telephone call request, the line connection state is set as a call state. When the connection between PC and keyboard is received and a request for the use of the PC in a busy state is received, the PC and keyboard are connected. When the call is completed, the system is initialized and the line connection state is connected to the ring signal detection state. In the first step of switching, and after receiving the telephone call request after initializing the system, the line connection state is established as a call state, the connection between the PC and the keyboard is switched, the dialing digits are received from the keyboard, and the counter is subtracted. After requesting DTMF tone generation and receiving a request for the use of the PC while in a call, connect the PC and the keyboard. A method of controlling a telephone that can simultaneously use a PC and a telephone and make a call using a headset is provided, including a second step of initializing the system and switching the line connection state to a connection state for detecting a ring signal. .

However, this is also for simple interworking of a single computer terminal and an existing telephone, and is not intended to build a network system like the present invention.

A first object of the present invention is to provide a handset capable of performing a local wireless telephone function for a home telephone and a network adapter function for a computer terminal.

A second object of the present invention is to establish a short-range wireless network using a home telephone, a plurality of handsets, and a plurality of computer terminals connected to the handset.

The wireless network system of the present invention for achieving the above object is a mother telephone (100) connected to a public telephone network and a wire, a plurality of handsets 300 capable of short-range wireless communication with the mother telephone 100 and the plurality It consists of a plurality of computer terminals 400 connected in series communication with the handset.

The mother phone 100 includes a wired modem 180 for data communication and a wireless modem 170 for converting and demodulating data or voice into GPSK modulation signals of 2.4 GHz band. The handset 300 includes the mother phone. Or a wireless modem 370 for converting and demodulating a voice signal or data into a short range wireless signal (a GPSK modulated signal of 2.4 GHz band) for short range wireless communication with another handset; Serial communication interface means 380 for transmitting and receiving data by serial communication with the computer terminal.

Therefore, voice communication using wireless is possible between the home telephone and the handset, the handset and another handset, and data communication using wired and wireless communication is possible between computer terminals including external computer terminals connected to the public telephone network.

1 is a block diagram of a wireless network system of the present invention.

2 is an internal circuit diagram of a mother telephone apparatus applied to the network system.

3 is an internal circuit diagram of a headset applied to the network system.

4 is an internal circuit diagram of a handset applied to the network system.

<Description of the symbols for the main parts of the drawings>

100: home telephone 200: headset

300: handset 400: computer terminal

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of a preferred embodiment of the present invention.

First, with reference to Figure 1 looks at the overall network configuration of the present invention.

The wireless network system of the present invention includes a mother phone (100), a headset (200) wirelessly connected to the mother phone (100), a plurality of handsets (300) wirelessly connected to the mother phone (100), It is composed of a plurality of computer terminals 400 connected to the handset or the home telephone.

The home telephone telephone 100 is connected to a public telephone network to perform a general telephone function, and also functions as a small wireless base station for the headset 200 and the handset 300. The specific structure of this home telephone is mentioned later.

The headset 200 is a Bluetooth wireless headset implemented with a low power, small RF module, which is capable of making phone calls while moving freely while exchanging voice signals with the home telephone.

The handset 300 is capable of simultaneously transmitting and receiving voice signals and data through a home telephone by adopting a GPSK modulation-based Bluetooth module using a 2.4 GHz ISM band adopted as a standard for digital short-range wireless communication. In addition, wireless communication is possible in the same manner among the handsets.

In the case of the handset 300, when performing voice communication with the home telephone telephone 100, the mobile telephone 300 performs a function as a wireless telephone subordinate to the home telephone telephone, and as illustrated in FIG. 1, the computer terminal 400 through the serial communication port. When connected to the home office phone 100 and the computer terminal 400 to form a wireless network performs a kind of network adapter function that enables data communication.

In addition, since one wireless network can be formed between the handsets 300, even if the computer terminals 400 are not networked with each other, data can be exchanged between the computers via the handsets.

The specific configuration of this handset will be described later.

In this way, by using the headset 200 and the handset 300 around the mother telephone 100, one wireless telephone communication network can be formed in the local area. In addition, when a plurality of computer terminals 400 are connected to the plurality of handsets 300, a small short-range wireless network network capable of data communication between the computer terminals 400 is formed.

In addition, in a state in which the plurality of handsets 300 and the computer terminal 400 are connected through a serial communication port, data communication can be freely performed with an external computer using a public telephone network connected to the home telephone telephone 100.

Reference numeral 10 is a telephone cable, and 20 is a serial communication line connecting the handset and the computer terminal.

Hereinafter, with reference to FIG. 2, the detailed structure of the said home telephone is demonstrated.

The mother phone 100 includes a voice codec unit 110, a digital voice processing unit (DSP) 120, a microcontroller, a short range wireless modem 170, an antenna 190, a serial communication modem 180, a speaker 130, The microphone 140, the input device 150, and the display device 160 are connected to the personal computer 400 through the serial communication interface 195.

The voice codec unit 110 is for converting an analog voice signal received through a telephone line into a digital signal or for converting a digital signal input from a digital voice processor into an analog voice signal.

The digital voice processing unit 120 has a DSP for processing voice signals, and converts the transmitted / received voice signals through the voice codec unit 110 through analog / digital conversion, and generates a high quality voice signal without surrounding noise by a digital filter function. It performs auto answering function, memo storage function and dual tone multifrequency (DTMF) function.

The microcontroller processes an output signal of the display device 160 (especially a liquid crystal display) and an input signal of the input device 150 (eg, a keyboard) and manages a telephone mode. In addition, it sets the system parameters of the digital voice processing unit and the Bluetooth module, and controls the operation mode to manage the call mode, the auto answer mode, the internal modem connection mode, and the external data transmission mode.

The speaker 130 converts a voice signal received through a telephone line into voice, and the microphone 140 converts a voice into a voice signal.

The short-range wireless modem 170 is a module consisting of an RF modem and a baseband signal processing processor that satisfies the Bluetooth short-range wireless network communication protocol to implement a durable and simplified, low-power, low-cost short-range wireless connection to replace the existing cable Can be. This short range wireless modem uses 2.4GHz ISM band, and handles the digital wireless communication modem function of GPSK modulation method and baseband protocol.

That is, the short-range wireless modem 170 modulates the voice signal transmitted through the telephone line 10 and transmits it to the headset 200 and the handset 300 through the antenna 190, and vice versa. An interface device for decoding a wireless voice signal transmitted from the handset 300 and transmitting it to a telephone line.

In addition, the short-range wireless modem 100 may transmit data transmitted from the personal computer 400 to the telephone network via the handset 300. Of course, the opposite is also true.

The serial communication modem 180 is a built-in modem of the V.90 standard for data communication using a trunk line telephone line and wirelessly connects to a PC at a transmission speed of 56 kbps. It can wirelessly connect 256kbps of internet communication.

Hereinafter, a detailed configuration of the headset will be described with reference to FIG. 3.

The headset 200 includes a microcontroller 210, a codec unit 240, a wireless modem 250, a microphone 220, a speaker 230, and an antenna 260. That is, after receiving the wireless voice signal transmitted from the mother phone 100 to the antenna 260, and passes through the wireless modem 250 to the codec unit 240 is converted into a digital signal and then transmitted to the microcontroller 210 To receive the call by outputting through the speaker 230.

On the contrary, the voice input through the microphone 220 is converted into a digital signal through the codec unit 240 under the control of the microcontroller 210. The voice digital signal converted into the digital signal is modulated to 2.4 GHz in the wireless modem 250 and transmitted through the antenna 260.

In this way, the user can make a telephone call while moving freely while doing other work on wearing the above-described headset.

4 shows a specific configuration of the handset.

As shown in the figure, the handset 300 of the present invention includes a microcontroller 310, a speaker 320, a microphone 330, an input device 340, a display device 350, a voice codec unit 360, It consists of a wireless modem 370 and an antenna 390.

The handset 300 is also connected to a USB port of a personal computer 400 via a serial communication interface 380.

The handset 300 may not only make a telephone call with the home telephone 100 or another handset 300 but also receive data from the personal computer 400 and transfer the data to the home telephone or another handset to enable data communication. do.

That is, the 2.4 GHz wireless voice signal transmitted from the mother phone 100 or the other handset 300 is received through the antenna 390, and then demodulated into a baseband signal by the wireless modem 370, and the voice codec unit ( 360 is converted to the digital voice signal, and then output through the speaker 320. On the contrary, the voice input through the microphone 330 is converted into a digital voice signal by the voice codec unit 360, and is modulated by a 2.4 GHz short range wireless communication signal by the wireless modem 370, and then through the antenna 390. Call home phone 100 or other handset 300.

Meanwhile, the data transmitted from the personal computer 400 is input to the wireless modem 370 of the handset via the serial communication interface 380. The input data is modulated into a short range wireless communication signal (GPSK modulation signal using ISM band of 2.4 GHz band) in the wireless modem 370, and is transmitted to the mother phone 100 or another handset 300 via the antenna 390. do.

In this case, the wireless data transmitted to the home telephone telephone 100 is converted into wired data in the home telephone telephone, and then transferred to a computer terminal connected to another network through the telephone line 10.

In addition, the wireless data transmitted to the other handset 300 is converted into data for serial communication in the handset, and then transferred to the personal computer 400 through the USB port.

As such, the handset receives data from a computer and transmits and receives data to an internal computer or an external computer to perform data communication.

The present invention is capable of constructing a small local area wireless network by wired or wirelessly connecting a plurality of handsets and a plurality of computers connected in serial communication to the handsets, as well as a worldwide network such as the Internet. It also enables data communication with.

In addition, the present invention also forms a wireless network that can implement data communication and voice communication at the same time.

Claims (2)

A home telephone telephone 100 connected to a public telephone network by wire, a plurality of handsets 300 capable of short-range wireless communication with the home telephone telephone 100, and a plurality of computer terminals 400 connected in series communication with the plurality of handsets. A wireless network system consisting of The home phone 100 is A wired modem 180 for data communication and a wireless modem 170 for converting and demodulating data or voice into a GPSK modulated signal of a 2.4 GHz band, The handset 300 is A wireless modem 370 for converting and demodulating a voice signal or data into a short range wireless communication signal (a GPSK modulated signal of 2.4 GHz band) for short range wireless communication with the home telephone or another handset; Serial communication interface means (380) for transmitting and receiving data with the computer terminal by serial communication; As a result, wireless communication is possible between the home telephone and the handset, a handset, and another handset, and data communication using wired and wireless communication is possible between computer terminals including external computer terminals connected to a public telephone network. Wireless network system capable of transmitting and receiving data and voice at the same time. The method of claim 1, And a headset (200) that is dependent on the home telephone (100) and freely talks on the move.