KR20020079693A - Method for controling telephone using universal serial bus - Google Patents

Abstract

PURPOSE: A method for controlling a telephone using a USB(Universal Serial Bus) is provided to call the other party and grasp a current telephone state by easily confirming the telephone of the other party on a PC using the USB and clicking the telephone of the other party. CONSTITUTION: A PC maintains a hook-off state in an initial state(S600). The PC selects a telephone number of the other party from a program DB of a telephone control device(S610). The PC calls the telephone of the other party(S620). The PC confirms a state of the telephone of the other party(S630). In case that the telephone of the other party is not busy, the PC maintains a hook-on state of a call standby state(S640). The PC transmits telephone data to the telephone of the other party using a USB communication(S650). The telephone of the other party converts the received telephone data into a DTMF(Dual Tone Multi Frequency) and transmits the converted DTMF(S660). A user of the PC calls the other party(S670).

Description

Method for control telephone using universal serial bus {Method for controling telephone using universal serial bus}

The present invention relates to a telephone control method using USB. More specifically, the phone function is linked with a PC to make a regular call by simply clicking the name of a person registered on the list in a user application such as an address book on the PC, thereby increasing convenience for those who use the phone a lot. It's about technology.

Since Alexander Graham Bell invented the telephone more than 120 years ago, voice communication has been mainly carried out through the public telephone network (PSTN), and recently, with the development of computer communication, the Internet telephone through the Internet (INTERNET) is proposed. The public telephone network uses a circuit switch network in which circuits are occupied between two subscribers during a call, which is expensive, and adds various functions as a computer because it exchanges voice signals with analog signals. The disadvantage is that there are difficulties. In addition, since the cost increases depending on the distance of the call, when making an international call, the call charge may be burdensome and the call may not be properly performed.

On the contrary, Internet phone first introduced by Vocaltec of Israel in 1995 converts voice signal into digital data and transmits it to the other party through the Internet, and converts the received voice data of the other party into analog voice signal in this way. The audible sound output has the advantage that the call cost is low regardless of the call distance, and the call quality is worse than the PSTN phone, but this is also improved due to the development of computer communication technology, the demand is increasing exponentially.

On the other hand, as information is networked, information transmission through the PSTN is further developed. In addition to the transmission of data information by modulation and demodulation, the processing of the voice itself has been actively progressed in recent years with the development of digital voice signal processing technology.

In general, the conventional technology is not much different in terms of program and function through a modem. However, due to the specification of a modem card for telephone use only, a modem card is disappearing from a PC. It is to implement the function that modem card implements.

As a related art known in the related art, a known technology called "Application No. 10-2002-0029431, Title of the invention: Telephone call recording apparatus using a USB port of a computer" has been proposed.

Referring to the above-mentioned known technology 10-2002-0029431, it is installed between the telephone line of the telephone station and the computer, the telephone control device for automatically handling the telephone service by connecting the telephone additionally, input and output through the telephone line connection unit and the telephone connection unit A voice channel unit for receiving a voice signal and processing an AC signal in a voice band, a caller detector for detecting a caller's telephone number transmitted through the voice channel unit, and a voice signal of the other party output through the voice channel unit as digital data. A digital converter for converting, a USB port connected to a USB port of the computer, a USB port for transmitting caller and voice information to the computer through the USB port, and a caller's telephone number output from the caller detector and a digital converter. The digital voice signal conforms to the USB standard according to a predetermined program. And converting the data into a computer, and having a control means for recording caller information and voice data on the hard disk of the computer through the USB port, thereby connecting the telephone control device with the USB port of the computer to digitally receive a telephone call through a public telephone network. A computer that can not only record high quality on the hard disk of a computer through the USB port, but also connect a plurality of telephone control devices to the USB port of the computer, and process and store digital work and phone calls digitally at high speed. Provides a telephone call recording device using the USB port.

It uses isochronous transfer and bulk transfer for data and control signal transmission between the phone module and the PC, and bulk transfers signals such as ring detection signals from the phone device to the PC during telephone reception. In the fact that USB is controlled by the host of a PC, it is impossible for the PC to know randomly by sending random call reception signals from the device to the PC.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to make a call and click the current phone state by easily checking and clicking on the other party's phone in a PC using a communication using USB that is universally used in a PC. It is to provide a telephone control method using USB to understand.

As a technical concept for achieving the object of the present invention, the present invention sends data and control signals from a PC to a device and an application from a telephone control device through a control transfer in a telephone control device using USB communication. The ring detection and related status information of the telephone control device is periodically sent to the PC through the Interrupt Transfer provided by the USB characteristic, and the PC can determine the current state of the telephone circuit through this data.

1 is a schematic diagram of a telephone control apparatus using USB according to the present invention.

2 is a detailed configuration diagram of a telephone control apparatus using USB according to the present invention.

3 is a flowchart of USB data transmission between a PC and a telephone according to the present invention.

4 is a flowchart illustrating a call process in a PC according to the present invention.

5 is a flowchart illustrating a call receiving process in a PC according to the present invention.

6 is a flowchart illustrating an example of using an external keypad according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: phone control unit 102: USB control unit

104: dial converter unit 106: dial pad

108: external hook on / off control unit 110: hook on / off control unit

112: DTMF generating unit 114: hook state detection unit

116: voice transmission and reception unit 118: ring detection unit

120: speaker LED flashing unit 122: switching unit

200: PC300: Telephone Station

400: telephone 500: headset

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

1 is a schematic diagram of a telephone control system using a USB according to the present invention, Figure 2 is a detailed configuration of the telephone control system using a USB according to the present invention.

1, the PC 200 and the telephone using the USB (Universal Serial Bus) communication in the state where the telephone control device 100 is installed between the telephone line (telephone station 300) and the telephone 400 It is composed of a system for controlling telephone calls between 400.

As shown in FIG. 2, the telephone control apparatus 100 includes a USB controller 102 connected to a PC 200; Dial converter section 104; Dial pad 106; An external hook on / off control unit 108; Hook on / off control unit 110; DTMF generation unit 112; Hook state detection unit 114; A voice transmitter / receiver 116 connected to the headset 500; Ring detection unit 118; Speaker LED flashing unit 120; And a switching unit 122 connected to the telephone station 300.

The USB control unit 102 communicates with the USB protocol and transmits a phone call received from the outside to the PC 200 through an interrupt transfer of the USB. The phone number data sent from the application of the PC 200 is received through the Vendor Comand of the USB Control Transfer.

The dial converter 104 converts the phone number data received from the PC 200 into data to be transmitted from the dial pad 106 to the dual tone multi frequency pulsing (DTMF) generator 112. .

Dial Pad 106 is used to make a phone call by pressing the dial pad like a phone number pad of the phone, and the signal is sent to DTMF generator 112 to make a call.

The external hook on / off control unit 108 is a hook on / off controller 110 for controlling the hook on / off of the telephone controller 100 to a value set through an external hook on / off button. Pass the data value to.

The hook on / off controller 110 controls the phone according to the hook on / off signal transmitted from the USB controller 102 and the hook on / off signal received from the external hook on / off controller 110. The hook on / off function of the device 100 will be implemented.

Dual tone multi frequency pulsing (DTMF) generation unit 112 generates a DTMF used when dialing through the data received through the USB control unit 102 and the data received through the dial pad 106 to make a call. do.

The hook state detection unit 114 transmits a call state signal of the current phone to the USB control unit 102 so as to know that the call is in an application of the PC 200.

The voice transceiving / amplifying unit 116 transmits and receives data transmitted and received through a line connected with the telephone station 300 for a telephone call, and transmits and receives a distortion of less than 2% and amplifies the signal by 36dB when transmitting and 3dB when receiving. Connected to the headset 500 connected to the control device 100 to enable a call.

The ring detector 118 detects a call when it is called and controls the LED of the speaker LED blinker 120 to emit an incoming sound through the speaker.

The switching unit 122 is connected to the telephone station 300, the hook on / off control unit 110 and the like to serve as on / off switching for the hook signal.

3 is a flowchart of USB data transmission between a PC and a telephone according to the present invention.

Referring to FIG. 3, data information is transmitted between a PC 200 and an endpoint zero of the telephone control apparatus 100 through a control transfer transmission path including telephone control signals and telephone number data.

In addition, between the PC 200 and the endpoint of the telephone control device 100, the status information is transmitted to the telephone making device through an interrupt transfer transmission path.

That is, data and control signals are transmitted from the PC 200 to the device and from the application to the telephone control device 100 through the control transfer from the telephone control device 100 using the USB communication. Then, the ring detection and related status information of the telephone control device 100 is periodically sent to the PC 200 through an Interrupt Transfer provided by the USB characteristic, and the PC 200 transmits the current through the data. You can see the status of the phone.

4 is a flowchart illustrating a call process in a PC according to the present invention.

As shown in Fig. 4, the telephone line (phone station 300) and the telephone control device 100 is installed between the phone 400 to make a call between the PC 200 and the counterpart phone using USB communication. The process is

Maintaining a hook-off state of the initial state in the PC 200 (S60);

Selecting the other party's telephone number from the program DB of the telephone control apparatus 100 (S60);

Calling the other party's telephone (S60);

Confirming a phone state of the other party's telephone in the PC (200);

Maintaining a hook-on state in a call waiting state when the phone of the other party is not busy (S60);

Transmitting telephone number data from the PC 200 to the counterpart phone by using USB communication (S60);

Transmitting the received telephone number data by DTMF conversion at the other party's telephone (S60);

Making a phone call with the other party (S60);

After the end of the telephone call (S60) is configured to maintain the hook-off (Hook off) state of the call termination state (S60).

At this time, the phone number data transmission process from the PC 100 to the counterpart phone by using the USB communication uses a control transfer (Control Transfer).

5 is a flowchart illustrating a call receiving process in a PC according to the present invention.

As shown in FIG. 5, the process of receiving a call between the PC 200 and the counterpart phone by using USB communication while the telephone control device 100 is installed between the telephone line (telephone station 300) and the telephone 400 is provided.

Maintaining a hook-off state of the initial state in the PC 200 (S700);

Detecting a ring signal from the other party's telephone (S710);

Transmitting the ring detection signal to the PC 200 by using USB communication when the ring signal is detected (S720);

Receiving a ring detection signal from an application of the PC 200 (S730);

Outputting a message indicating that the call is received from the other party's phone (S740);

Receiving a call from the PC (200);

Maintaining a hook-on state of a call state (S760);

Making a phone call with the other party (S770);

After the telephone call ends (S780) and maintaining a hook-off (Hook off) state of the call termination state (S790).

In this case, when the ring signal is detected, the transmission of the ring detection signal to the PC using USB communication is periodically transmitted through an interrupt transfer.

6 is a flowchart illustrating an example of using an external keypad according to the present invention.

Looking at the process of using the external keypad shown in Figure 6, in the hook off (S800)-> Hook on process (S810)-> Hook off process (Hook off) of the initial state ( S820)-> Hook off (S830) It can be seen that it is used repeatedly.

As described above, according to the telephone control method using the USB according to the present invention, in connection with the PC to the general phone function, the user can make a general phone call by simply clicking on the name of the person registered on the risk in a user application such as an address book on the PC. It can increase convenience for people who use the phone a lot.

In addition, it provides external headset and telephone number keypad to help general call and can be used like regular phone when PC is off. It can also be used as a USB phone because it can be attached to a device to connect a regular phone.

Claims (4)

In the method of controlling the telephone (dial) between the PC and the other party's telephone by using USB communication with the telephone control device installed between the telephone line (telephone station) and the telephone, Maintaining a hook-off state of an initial state in the PC; Selecting the other party's telephone number in the program DB of the telephone controller; Calling the other party's phone; Confirming a telephone state of the other party's telephone in the PC; Maintaining a hook-on state of a call waiting state when the other party's phone is not busy; Transmitting telephone number data from the personal computer to the opposite telephone using USB communication; Transmitting the received telephone number data by DTMF conversion at the other party's telephone; Making a phone call with the other party; And maintaining a hook off state of the call termination state after the telephone call is terminated. The method of claim 1, wherein the telephone number data transmission process from the PC to the counterpart phone using USB communication is performed using a control transfer. In the method of controlling the call (answering) between the PC and the other party's phone by using USB communication with a telephone control device installed between the telephone line (telephone station) and the telephone, Maintaining a hook-off state of an initial state in the PC; Detecting a ring signal from a telephone of the other party; Transmitting a ring detection signal to a PC using USB communication when the ring signal is detected; Receiving a ring detection signal from the application of the PC; Outputting a message indicating that a call is received from the other party's telephone; Answering a call at the PC; Maintaining a hook-on state of a call state; Making a phone call with the other party; And maintaining a hook off state of the call termination state after the telephone call is terminated. The method of claim 3, wherein the transmission of the ring detection signal to the PC using the USB communication is periodically transmitted through an interrupt transfer when the ring signal is detected. 5.