KR20020023852A - Internet phone dual purpose wire/wireless phone - Google Patents

Abstract

PURPOSE: A wired and wireless telephone used as an Internet phone is provided to be compatible with a computer, maximally secure the mobility of a telephone, and use an Internet phone service without the computer. CONSTITUTION: A CPU(212) performs an entire control function of a wired and wireless telephone through a certain program. A memory(218) stores programs necessary for controlling the wired and wireless telephone and call information data of an object, and provides the call information data of the object to the CPU(212). A converter(208) converts an analog signal inputted from a voice input unit of the wired and wireless telephone into a digital signal, and converts a received digital signal into an analog signal to transmit the analog signal to the voice output unit. A codec(206) encodes the digital signal inputted from the converter(208), decodes an encoded signal, and outputs the decoded signal to the converter(208). A memory(204) stores programs necessary for controlling an Internet phone module and Internet address information of the object. A network control circuit unit(210) automatically transmits and receives a call control signal through a telephone line under the control of the CPU(212). A DSP(Digital Signal Processor)(202) performs an entire control function of the Internet phone module for providing an Internet phone service through the telephone line connected to the network control circuit unit(210).

Description

INTERNET PHONE DUAL PURPOSE WIRE / WIRELESS PHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wired and wireless telephones, and more particularly, to an internet phone combined wired and wireless telephone having an internet phone module capable of providing an internet phone service.

In recent years, as Internet users rapidly increase year by year and data transmission speeds on the Internet increase, interest in Internet phones, Internet faxes, and Internet broadcasts is increasing. In particular, the Internet phone has the advantage that it can be used at a very low cost compared to the existing telephone fee when making long-distance calls or international calls. Therefore, there are many Internet phone service providers such as PC service providers, Internet service providers, and telephone providers.

However, in the conventional Internet phone service, a telephone call using the Internet network is possible only through a computer where a modem is installed. That is, only communication between a computer-to-computer equipped with a modem, a phone-to-computer connected to the computer, and a phone-to-computer connected to the computer is possible.

Therefore, you must go to the place where the computer is installed and take the inconvenience of having to make a telephone call with an unspecified person. Also, the communication between the telephone and the telephone using the internet network is impossible, so that the PSTN (connected to the internet through the gateway) Only part of the call can be used as an Internet phone service because it had to pass through the Public Switched Telephone Network. This has a problem of having to pay double the cost of using an exchange, such as a gateway, along with some low-cost Internet phone use, there is a problem that the connection of the call is unstable.

Accordingly, an object of the present invention for solving the above problems is to provide an internet phone combined wired and wireless telephone that can be compatible with a computer, ensure the maximum mobility of the phone, and can use the Internet phone service without a computer. .

In addition, another object of the present invention is to provide a wired and wireless telephone that can use the long-distance and international calls, the installation is easy, and has the same effect as a general telephone at the level of the charge charged to the local telephone.

Still another object of the present invention is to provide an internet phone that can be easily connected to and installed with the Internet network through a general telephone line.

1 is a view showing the concept of a wired and wireless telephone combined use of the Internet phone according to the present invention,

Figure 2 is a block diagram of a wired and wireless telephone implemented with an Internet phone module according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: wired / wireless telephone combined with internet phone 102: Internet network

218: PC 216: Gateway

214: PSTN 110: regular wired or wireless telephone

200: Internet phone module 202: digital signal processing unit

204: Internet phone module memory 206: Codec

208: converter 210: network control circuit

In order to solve the above object, the wired / wireless telephone combined with the internet phone according to the present invention includes a central processing unit performing overall control of the wired / wireless telephone through a predetermined program, a program necessary for controlling the wired / wireless telephone, and call information of the other party. A system memory for storing data and providing the same to the central processing unit, and a converter for converting an analog signal input from the voice input unit of the wired / wireless telephone into a digital signal, and converting the received digital signal into an analog signal and transmitting it to the voice output unit. And a codec for encoding the digital signal input from the converter, decoding the received coded signal and outputting the encoded signal to the converter, a program necessary for controlling the Internet phone module, and an Internet phone module for storing the Internet address information of the other party. Memory and the central processing plant Network control circuit unit for automatically transmitting and receiving call control signals through a telephone line under the control of a mobile device, and a network Internet phone module providing Internet phone service through a telephone line connected to the network control circuit unit under control of the central processing unit. It is characterized by consisting of a digital signal processor for performing a control function.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if they are displayed on different drawings. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

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

1 is a view showing the concept of a wired and wireless telephone combined use of the Internet phone according to the present invention. Figure 1 (a) to (c) shows an example of the configuration of a system that can use the Internet telephony service, the Internet phone combined wired and wireless telephone according to the present invention provides a telephone service using a conventional PSTN network only through a general telephone line It is available. The switching between the general telephone service using the PSTN network and the Internet phone service using the Internet network is performed according to a predetermined Internet phone mode key input provided in the key input unit of the combined Internet / wireless phone according to the present invention.

As shown in FIG. 1, a wired / wireless telephone connection with an Internet phone and a wired / wireless telephone connection with an Internet phone (a), a connection between a wired / wireless phone with an internet phone and a computer (b), a wired and wireless telephone connection with an internet phone and a general telephone connection (c) There is this. In FIG. 1 (a), the Internet phone service method between the wired / wireless telephone 100 combined with the Internet phone is the same as the Internet phone service method between computers, and directly calls the other party using an IP (Internet Protocol) address. If the other party is using the Internet 102, the call can be made immediately. If there is no other party, the other party can be delivered in the form of automatic voice e-mail. In (b) of FIG. 1, an internet phone service method between the wired / wireless telephone 100 combined with the internet phone and the computer 218 is connected to the wired / wireless telephone 100 connected to the internet 218 of FIG. 1 (a). It is connected to the computer 218 through the Internet (218). In (c) of FIG. 1, the Internet phone service method between the Internet phone combined wired / wireless telephone 100 and the general telephone 1218 is that the Internet phone 218 is connected to the Internet phone combined wired / wireless telephone 100 connected to the Internet 218. It is connected to the gateway 216, where it is connected to the general telephone 110 through the public telephone room 214 of the world again. This is similar to the concept of Net2Phone (Internet Phone Service) of the International Discount Telecommunications (IDT) in the United States, and the burden of costs is further reduced by the use of the Internet phone / wireless telephone 100. When the voice signal is transmitted to the gateway server through the Internet 218, the corresponding gateway server on the receiving side connects to the called party through the public telephone network 214. Since the wired / wireless telephone combined with the Internet phone of the transmitting side is connected to the Internet, the user is eliminated the conventional inconvenience of further pressing the number for the gateway server connection before the telephone number.

2 is a block diagram of a wired / wireless phone in which an Internet phone module is implemented according to an embodiment of the present invention. The fixing device 100 of the wired / wireless phone shown in FIG. 2 is a general phone module and an Internet phone module according to the present invention. 200. The general telephone module has a known configuration, and includes a wireless unit 230, a handset 234, a headset 232, an analog switch 228, a microphone (MIC) amplifier 236, a microphone (MIC), a speaker (SPK). Amplifying unit 238, speaker (SPK), call circuit unit 226, telephone line switch 224, ringer 222, ring detector 220, central processing unit 212, memory 218, display unit 216 ), A key input unit 214 and an antenna ANT.

The wireless unit 230 transmits / receives a radio signal between the fixing device 100 and a portable device (not shown). As an example, the radio unit 230 amplifies the RF radio signal received from the portable apparatus 200 through an antenna by filtering only a reception frequency (eg, 914 MHz) of a corresponding channel band, and then amplifies the first and second radio signals. Outputs a signal passing through a second intermediate frequency (IF) to the analog switch 228, and generates a corresponding frequency for each channel when transmitting a signal to the portable device 200, the carrier signal of the transmission frequency band (for example 959MHz band) It is converted into and transmitted through the antenna.

Although not shown, the handset 234 and the headset 232 are handsets composed of a transmitter and a receiver, and the user's voice is transmitted to the call circuit unit 226 through the analog switch 228 through a microphone provided in the transmitter. The voice signal transmitted from the call circuit unit 226 is output from the handset to perform a voice call.

The analog switch 228 is the wireless unit 230, handset 234, headset 232, microphone amplifier 236, speaker amplifier 238, call circuit unit 226 and the Internet phone according to the present invention It is connected to the converter 208 and the digital signal processor 202 of the module 200 and is responsible for circuit switching according to the operation of each component.

The microphone amplifier 236 amplifies and outputs an audio signal input through the microphone.

The speaker amplifying unit 238 amplifies an audio signal input through the call circuit unit 226 and outputs it to the outside through the speaker.

The call circuit unit 226 is a voice network, and is connected between the analog switch 228 and the telephone line switch 224 to process various tone signals and voice signals.

The telephone line switch 224 includes a hook switch, and performs a function of forming or blocking a call path with the telephone line under the control of the central processing unit 212.

The ringer 222 is connected to the telephone line, the speaker and the ring detector 220, and is a tone ringer.

The ring detector 220 is connected to the telephone line and detects a ring signal input to the telephone line in an on-hook state and notifies the central processing unit 212 that the call is in an incoming state.

The central processing unit 212 controls the operation of the various components according to the function of the phone, and controls the trunk line call and the call with the portable device 200. In particular, the CPU 212 drives and controls the Internet phone module 200 according to a predetermined Internet phone mode key input on the key input unit 214 to perform an Internet phone service.

The memory 218 stores various functional programs of the telephone, and stores various data to be controlled by the central processing unit 212. For example, the memory 218 may use an electric erasable programmable read only memory (EEPROM).

The display unit 216 displays a current state diagram of the phone and various situations under the control of the CPU 212.

The key input unit 214 may include a plurality of function keys and a dial 3 * 4 key, and may include keys for setting various functions and manually drawing and extracting an automatic antenna, and perform general dial input.

According to an embodiment of the present invention, the wired / wireless telephone combined with the internet phone is implemented by combining the Internet phone module 200 with the general telephone module as shown in FIG. 2. The wired / wireless telephone according to the present invention further includes an internet phone module 200 including a digital signal processor 202, an internet phone module memory 204, a codec 206, a converter 208, and a network control circuit 210. . The Internet phone module 200 performs an Internet phone service function according to the present invention under the control of the central processing unit 212.

The converter 208 converts an analog signal input from a voice input unit (microphone or a handset, a microphone of a headset) of the wired / wireless telephone 100 into a digital signal, and converts the received and decompressed digital signal into an analog signal. The codec 206 encodes and compresses a digital signal input from the converter 208 into a predetermined format, and compresses and receives the digital signal input from the converter 208 into a predetermined format. The decoded signal is decoded and outputted to the converter 208.

The Internet phone module memory 204 stores a program necessary for the control of the Internet phone module 200 and the Internet address information (IP address, etc.) of the other party, and the network control circuit unit 210 is the central processing unit 212 Call control signal is automatically transmitted and received through the telephone line (TEL LINE).

The digital signal processing unit 202 controls the overall control function of the network Internet phone module 200 that provides an Internet phone service through a telephone line connected to the network control circuit 210 under the control of the central processing unit 212. Perform. In particular, the digital signal processing unit 202 is stored in the Internet phone module memory 204 when the user inputs the Internet phone mode key (located at one side of the key input unit 214, not shown) according to the present invention. Use the address information to access the Internet through the phone line. At this time, the network control circuit unit 210 opens the telephone line according to the user's hook-off signal, and automatically transmits the dial signal converted into a digital signal according to the user's key input. Accordingly, the user uses the Internet phone service with a simple key operation.

Thereafter, the user may selectively connect the microphone and the speaker or the handset 234 and the headset 232 to perform a call through a voice input / output unit of a device to which a call is to be made.

Also, under the control of the central processing unit 212, a short message service (SMS) created through the key input unit 214 may also be transmitted under the control of the digital signal processing unit 202. The text message is displayed on the display unit 216 and can be modified and stored.

On the other hand, in the detailed description of the present invention has been described with reference to specific embodiments, of course, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention has an advantage that the Internet phone itself can be implemented by using both a general phone service and an Internet phone service. Accordingly, it can be easily connected to the telephone line, so it is easy to install, guarantee the maximum mobility of the phone, compatible with the computer, there is an advantage that can use the Internet phone service without a computer. Therefore, there is an advantage that can use the long-distance and international calls at the level of the charge charged to local calls using the low-cost Internet network.

Claims (3)

A wired / wireless telephone having an internet phone module capable of providing an internet phone service, A central processing unit performing overall control of the wired / wireless telephone through a predetermined program; A system memory for storing a program necessary for controlling the wired / wireless telephone and call information data of a counterpart and providing the same to the central processing unit; A converter for converting an analog signal input from the voice input unit of the wired / wireless phone into a digital signal, converting the received digital signal into an analog signal and transmitting the analog signal to the voice output unit; A codec for encoding a digital signal input from the converter, decoding the received coded signal and outputting the decoded signal to the converter; An internet phone module memory for storing a program necessary for controlling the internet phone module and internet address information of the other party; A network control circuit unit for automatically transmitting and receiving a call control signal through a telephone line under the control of the central processing unit; And a digital signal processor configured to perform an overall control function of a network Internet phone module for providing an Internet phone service through a telephone line connected to the network control circuit unit under the control of the central processing unit. The method of claim 1, wherein the Internet phone module, Internet phone combined wired and wireless telephone, characterized in that driven when the Internet phone mode key input on the key input unit of the wired and wireless telephone. The method of claim 1, wherein the Internet phone module, A wired / wireless telephone for both internet phones, characterized by further having a short text service function.