KR20010036843A - Telephone card device for computer - Google Patents

Abstract

PURPOSE: A computer telephone is provided to offer a computer telephone installed inside of a computer and operated by a program so that a user can make a phone call by receiving a mouse or a keyboard through the operating program and its functions can be improved only by the update of the program. CONSTITUTION: A telephone circuit part consists of a telephone line access part(110), a telephone control circuit part(120) and a DTMF generation part(130). The telephone line access part(110) is comprised of the first bridge diode(BD1), the second bridge diode(BD2) and a latch relay(RALDSW-K). The first bridge diode(BD1) is connected with a telephone line input terminal(30) and an external telephone terminal(40) and interfaces transmitting/receiving signals with an external telephone line. The second bridge diode(BD2) detects a ring signal from the external telephone line. The latch relay(RALDSW-K) executes the hook function of a generic telephone set. The telephone control circuit part(120) receives the ring signal through the second bridge diode(BD2) and controls call receiving. The telephone control circuit part(120) carries out the control of dialing and voice transmission/reception through the first bridge diode(BD1). The telephone control circuit part(120) outputs the ring signal to a PC interface part(200) and controls a buzzer(101). The DTMF generation part(130) receives a dialing signal from the PC interface part(200), generates a DTMF signal and inputs it to the telephone control circuit part(120).

Description

Phone card device for computer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PC-embedded computer telephone, and more particularly to an advanced computer telephone having a variety of convenient functions by operating a program by incorporating telephone functions into a computer with a telephone board.

In general, as the spread of PCs has become more common, the necessity of grafting computers and phones has emerged, and Internet phones and general CTIs are known.

Internet phone is a technology that can make simple voice call by operating software exclusively for internet phone and compressing and transmitting voice using sound card inside computer in internet environment. That is, the voice communication is realized by using a communication modem, and the exchange side of the communication network has a function of being connected to a general telephone through a gateway.

However, these Internet phones are not inconvenient because it is difficult to expect a rate reduction effect, unless there is an international telephone call, and there are many noises and ringings and an Internet connection.

General CTI is a system that is mainly used by companies with customer status, such as telemarketing. It has to install CTI hardware and operation software, and it has automatic dialing, electronic phone number transmission, incoming ring, screen message, call log automatic and monitoring function. It provides a variety of functions such as saving, editing, and compression, and is using a headset.

However, since CTI is very expensive in hardware or software, difficult to support / develop software, and expensive system, the general public is almost impossible to purchase, and it is developed mainly for customer-oriented companies such as telemarketing and call centers. .

Accordingly, the present invention provides a computer phone that is mounted inside the computer and operated as a program, so that the phone can be received by inputting a mouse or keyboard as an operating program, and the function can be improved only by updating the program. This is to provide various functions such as phonebook management, auto answering function, and announcement message transmission.

The present invention is a telephone part connected to an external telephone line to implement a voice call by a DTMF signal, an address and input / output controller for connecting an input / output between the main board and the telephone part of the PC, and the main of the PC. An interface unit for controlling the phone parts by a phone operation program by a board and interfacing the PC main board with the phone parts to control the phone functions such as answering, making a call, making an incoming call, etc., linked with various management software in the PC; And an earset connected to the phone part, including a microphone for voice input, an earphone for listening to voice, and a trigger switch using a tack switch to generate a trigger signal, and an incoming button for controlling ear set reception. It is equipped with PC operation program to control phone parts by board, Windows provides a tool to comprise an operational program for links to various types of management software in the PC to control the phone features such as receiving calls, dialing, automatic forwarding, etc.

Here, the phone part is provided with a microphone output terminal, a trigger signal terminal and an earset output terminal for hook control, the microphone output terminal is configured to perform a recording function by connecting to the microphone input terminal of the sound card.

1 is a block diagram of a computer telephone board of a pro model according to an embodiment of the present invention.

2 is a detailed circuit diagram according to FIG. 1

3 is an external wiring diagram of a pro-model computer telephone according to the present invention.

4 is a gold model computer telephone circuit block diagram in accordance with an embodiment of the present invention.

5A to 5C are detailed circuit diagrams showing a gold model of a computer telephone according to the present invention.

5D is an external wiring diagram of a gold model computer telephone according to the present invention.

6 is an exemplary phone control screen of a computer screen according to the present invention.

7 is a general call flow diagram according to the present invention.

8 is a flowchart of a call recording mode.

9 is a flowchart of a call recording / playback function / playback call recording mode.

<Description of the code | symbol about the principal part of drawing>

10: Sound card connection terminal 20: Asset set connection terminal

30: telephone line connector 40: external telephone connector

50: hook switch 100: telephone circuit

101: bell 110: telephone line connection

120: telephone control circuit unit 121: ring signal detection unit

122: bell control unit 123: ring signal transmission unit

124: voice input and output control unit 125: hook control unit

126: telephone power control unit 130: DTMF generator

200: interface unit 201: first address decoder

202: switch 203: second address decoder

204: control data buffer 205: voice control data buffer

206: input buffer 300: DTMF detection unit

400: voice amplifier 410: received volume amplifier

420: receiving audio amplification rate control unit 430: recording audio signal mixing unit

440: sound card voice amplification control unit

500: voice mixing unit 610: transmission voice selection unit

620: receiving voice selection unit 710: power supply unit

720: bypass condenser

Hereinafter, with reference to the accompanying drawings in detail as follows.

First, an embodiment of the present invention provides a standard model of a simple function, a PRO model further comprising a call recording / playback function using a sound card in the standard model, an answering machine and a sound card in the pro model. We present a GOLD model, which further includes a function of mixing and transmitting audio with an audio signal.

The standard and pro models have the same circuitry on the phone board, but the pro models also include a connection jack that connects to the sound card and only includes recording and playback modes in the operating program on the computer.

1 is a block diagram of a computer telephone board of a pro model according to an embodiment of the present invention, Figure 2 is a detailed circuit diagram according to FIG. The computer telephone board of the present invention is mounted as a board in a computer, and an operating program is installed in the computer so that the telephone function can be controlled by the control of the computer.

Sound card connection terminal 10 for connecting the incoming voice of the call to the microphone input terminal of the sound card in the computer through an external connection jack, and the microphone and the earphone are connected to support the recording function of the incoming voice. Earset terminal 20 is commonly connected to the hook switch 50, the telephone line input terminal 30 connected to the external telephone line, the telephone terminal 40 connected to the external telephone, and a separate telephone bell inside A telephone circuit unit 100 is installed and connected to each of the terminals and controls a telephone call using a DTMF signal, and interfaces with a PC main board so that a computer can control the functions of the telephone circuit unit 100. It consists of an interface unit 200 consisting of a PC control unit 210 and a PC interface unit 220.

As shown in FIG. 2, the telephone circuit unit 100 is connected to a telephone line input terminal 30 and an external telephone terminal 40, and has a first bridge diode BD1 for matching a transmission / reception signal with an external telephone line. A telephone bridge comprising a second bridge diode (BD2) for detecting a ring signal from an external telephone line and a latch relay (RALDSW-K) RL1 for performing a hook function of a general telephone for connection control of a telephone line. Receives a ring signal through the connection unit 110 and the second bridge diode BD2 of the telephone line connection unit 110 to control call reception, and to control dialing and voice transmission and reception through the first bridge diode BD1. And outputs a ring signal to the interface unit 200 and controls a bell (buzzer) 101 in itself, and receives a dialing control and a telephone connection control from the interface unit 200. Wow, the PC Receiving a dialing signal from the interface unit 200 comprises a DTMF generator unit 130 to be input to the telephone by the control circuit 120 generates a DTMF signal.

The telephone control circuit unit 120,

The ring 101 is controlled to drive the bell 101, and the ring detection signal is output to the PC interface 200, and the DTMF signal from the DTMF generator 130 and the voice output to the ear set 20 are voiced. A main control unit U5 composed of a one-chip processor which processes an input and transmits it to the telephone line connection unit 110, detects a ring signal from the telephone line connection unit 110, inputs the ring signal to the main control unit U5, and rings the bell. The ring signal detection unit 121 for controlling the driving of the 101 and the bell interface detection unit 121 by the control of the main control unit U5 and the ring signal of the ring signal detection unit 121 to drive the bell 101 and the PC interface unit. Bell control unit 122 to turn on / off the driving of the bell 101 by the control of (200), and ring signal transmission to transfer the ring signal to the PC interface unit 200 under the control of the main control unit (U5). The audio output signal of the unit 123 and the main control unit U5 is connected to the earset terminal 2. 0) and the sound card connection terminal 10, and the voice input of the ear set is input to the main controller U5 according to the control of the PC interface 200, and the voice is controlled by the main controller U5. The telephone line connection unit (12) by a voice input / output control unit 124 for outputting a signal to the telephone line connection unit 110 and a hook control signal integrally connected to the hook control signal of the PC interface unit 200 and the ear set. The hook control unit 125 controls the latch relay RL1 of the 110 to control call answering and disconnection, and the backup power supply for driving the latch relay in conjunction with the hook control unit 125 to the condenser C12 and C13. It is configured to include a telephone power control unit 126 for charging and operating the latch relay RL1 by the hook switch 50 of the ear set even when the main power of the computer is off, and to use the power of the telephone line as the operating power. .

In addition, the telephone circuit unit 100 is provided with a separate power stabilization unit for supplying the necessary power to each part by using the PC power, the PC interface unit 200 and the telephone circuit unit 100 is connected to various signal connections It is configured to isolate the power supply by using the photo coupler (ISO2) for DTMF mute control, the transformer (T1) between the DTMF generator 130 and the main control unit (U5), and the bell drive of the bell drive on / off And a photo coupler (ISO1) for controlling the earset voice input for mute voice muting, and a photo coupler (ISO5, ISO6) for set / reset signal for hook control. (10) isolates the power of the signal lines between the telephone circuit section and the PC section using a transformer T2.

3 is an external wiring diagram of the computer telephone system according to the present invention. As shown therein, the phone board of the present invention is coupled to a slot inside a computer, and the PC interface unit 200 is installed to be connected, and a sound card connection terminal is provided. Connecting the microphone output terminal (10) to the microphone input terminal of the sound card in the computer through the stereo jack (11), and the speaker output terminal of the sound card to the speaker (13) through the speaker output jack (12), The hook switch 50 is installed on the line of the ear set, and the earphone 21 (speaker) 22 and the microphone 23 is connected to the jack 21 to the hook switch terminal and the ear set terminal 20. To make an external connection.

According to the present invention configured as described above, when a ring signal is input from an external telephone line connected through the telephone line terminal 30, the ring signal is received through the second bridge diode BD2 and is passed through the zener diode D5 of the ring signal detector 121. The ring signal is detected and applied to the main controller U5 through the diode D1. At this time, the output signal of the zener diode D5 controls the transistor Q2 of the bell controller 122 to ring the bell 101. That is, the present invention is provided with a separate bell 101 in the telephone board to notify that a call has been made. At this time, when a computer is in use, a telephone message window indicating that a call has been placed on a computer monitor is displayed on the screen.

The call message window on the screen is a simple display window indicating that a call has been made, and a button for selecting a call and selecting to start recording simultaneously with the call is displayed. When the call button is clicked, a call is received using a computer. It becomes possible. In other words, the earset 20 can be worn and a telephone call can be made. And, you can answer the call by pressing the hook switch button 50 of the ear set 20.

Particularly, according to the present invention, even when the computer is off, the telephone ring 101 rings when a call comes in, and when the hook switch 50 of the ear set 20 is pressed by the ring tone, the call is received through the ear set. It becomes possible.

When a call is received, a ring signal is detected through the second bridge diode BD2 of the telephone line connection unit 110 and the zener diode D5 of the telephone control circuit unit 120 so that the bell 101 operates, and the main control unit U5 transmits the ring signal to the PC interface unit 200 through the photo coupler ISO3, and displays a phone message window on the computer screen on the main board receiving the ring signal through the PC interface unit 200. do.

When the answer button is clicked in the call message window on the computer screen, a call answer signal is output through the PC interface unit 200 to operate the photo coupler ISO5 to operate the latch relay RL1 to connect a call answer loop. . At this time, even if the hook switch 50 of the ear set 20 is pressed, the same function is performed. This is done by the function of the latch relay RL1 and the connection path of the diodes D12 and D13 connected to the hook switch 50, and also by the operation in the computer, the photo coupler ISO5 or the photocoupler ISO6. The latch relay is controlled by the mutual operation of to realize the same function as the hook on / off.

When a call answering connection is made as described above, a phone call using the ear set 20 can be controlled by the control of the main controller 101. In this case, when the recording function is selected, voice information is transmitted to the sound card through the sound card connection unit 10. It is input and voice recording is possible.

On the other hand, in the method of making a call, the user displays a telephone control window on the screen of the computer and controls the dialing through the window. The phone numbers according to the button press are automatically displayed and transmitted as pressing the dial button, and are generated as DTMF signals from the DTMF generating unit 130 through the PC interface unit 200, which is the main control unit through the transformer T1. Input to (U5), at this time the photo coupler (ISO5) is operated by the hook control signal for making a phone line connection 110 is a telephone line connection state through the first bridge diode (BD1), the main The control unit U5 sends a dialing signal to make a call. After making a call, the process of making a call through the earset 20 is the same as answering a call.

Figure 4 is a block diagram of a gold model computer telephone circuit according to an embodiment of the present invention, Figure 5 is a detailed circuit diagram, as shown in this, connected to an external telephone line to control the phone call and voice input and output through the earset A computer telephone comprising: a telephone circuit section for controlling a computer interface; and a PC interface section for interfacing with a PC main board to control a telephone call through the telephone circuit section while watching a screen of a computer, the external telephone line for automatic answering control in a computer main board. DTMF detection unit 300 for decoding the DTMF signal received from the PC interface unit 200 through the PC interface unit 200, a voice amplifier 400 for sound source amplification and equalization processing, and automatic response Automatic recording and external music input through the sound card To allow transmission and processing further includes an audio mixing unit (500).

Here, a sound speaker input terminal 11 for inputting external sound to the voice amplifier 400, a speaker output terminal 12 for outputting the mixed voice of the voice mixer 500, and the A recording output terminal 13 for recording a telephone call voice through the sound mixing unit 500 and a microphone input terminal 14 for inputting an external microphone voice to the voice mixing unit 500; It is connected to the telephone circuit unit 100 to perform a voice handset function, and also includes an earset terminal 20 including a hook switch, a telephone line terminal 30 for connecting a telephone line, and a telephone terminal 40 for connecting with an external telephone. It is configured to include).

5A to 5C are detailed circuit diagrams showing a gold model of a computer telephone according to the present invention. As shown in the drawing, the telephone circuit unit 100 uses two bridge diodes BD1 and BD2 to establish a telephone line. The telephone line connection unit 110 is configured to perform a hook switch function through the latch relay RL1 and to perform line connection and ring signal detection. Controlling the dialing and voice transmission / reception functions through the telephone line connection unit 110 under the control of the main control unit U5, and controlling ring signals, bell 101 control, and ring signals through the PC interface unit 200. It is configured to control functions such as transfer to the main board, a hook switch 50 for controlling the latch relay RL1 by a toggle signal, and a port for controlling the latch relay RL1 by a telephone connection control of a PC. Diodes D14, D15, and capacitors C11, C15 are provided to charge and provide power for operating the plug ISO5, ISO6 and its latch relay RL1, and supply the power over the telephone line. A telephone power supply control unit 126 configured with a capacitor C3 and a zener diode D3 is provided.

The DTMF generating unit 130 is configured to generate the dialing signal of the PC interface unit 200 as a DTMF signal and input the same to the main control unit U5 through the transformer T1.

The interface unit 200 includes a first address decoder 201 for decoding address data of a PC main board, a switch 202 for setting address decoding, and a switch set signal of the first address decoder 201. Based on the clock signal of the second address decoder 203 and the second address decoder 203 that generate the clock signal, the input gate signal, the set / reset signal, etc. by decoding the address, A telephone function telephone signal control signal buffer 204 for buffering telephone control data to buffer bell control, hook control, call muting, button dialing data, and the like for buffering voice control data such as reception volume control and mixing control from a PC. Voice control data buffer 205 and an input buffer 206 for buffering data for transmitting tone recognition, ring check and the like from the telephone circuit controller to the PC side. It is configured to include.

The DTMF detection unit 300 decodes a tone tone from the voice output signal of the telephone control circuit unit 120 to detect a DTMF signal, and sends the DTMF signal to the input buffer 206 to transmit an external telephone line from the PC main board. It is configured to recognize the tone signal and automatically control the telephone function.

The voice amplifier 400 receives the voice signal RXA received through the telephone control circuit unit 120 through a transformer and outputs the voice signal RXA to the DTMF detector 300 and amplifies it through the operational amplifier U8A. And amplification rate control resistance between the input terminal and the output terminal of the operational amplifier U8A of the received volume amplifier 410 and the output volume amplifier 410 to be outputted. Amplification of the received audio amplification rate control unit 420 for controlling the amplification rate by variable selection based on the control data of the controller, and amplifying a voice signal connected to the sound card, and based on the control signal CON3 of the voice control data buffer 205. A sound card voice amplification control unit 440 for directly connecting the amplified or non-amplified signal, and the microphone input voice signal MICINA for recording by mixing the received voice signal RXAA and the transmit voice signal TXAA. The received volume amplifier 410 through the multiplexer U9 based on the recording audio signal mixing unit 430 and the control signals CON1, 2 and 4 of the voice control data buffer 205 of the PC. In addition to generating a reference value of the operational amplifier, the voice signal input through the sound card voice amplification control unit 440 of the ear set and mixing through the operational amplifier (U8B) to amplify the amplified signal (T3) The voice mixing unit 500 and the voice signal mixed by the voice mixing unit 500 or the voice signal of the earset are selected through the relay RL2 according to the power on / off of the computer. A transmission voice selection unit 610 for inputting the voice input signal TXA of the telephone control circuit unit 120 and an amplified signal of the reception volume amplifier unit 410 or the telephone control circuit unit according to the power on / off of the computer. Receive 120 RXA It further comprises a receiving voice selection unit 620 to select through this (RL3) to connect to the earset.

In the drawing, reference numeral 710 denotes a power supply for stabilizing + 5V, -5V, + 9V, and -9V required by the phone board by receiving power from the computer, and 720 is a bypass for supplying +/- 9V power. It is a condenser part.

6 is a diagram illustrating an example of a telephone control screen of a computer screen according to the present invention. The telephone model is graphically displayed, various buttons are displayed on the model, and the buttons are clicked on with the mouse to control the performance of functions.

The phone number display window displays the input phone number or name and automatically saves up to 50 recent call numbers and displays them as selected. The information display window displays recording waveforms, date, call time, name, and other information.

The dial button is clicked by a mouse and inputs a telephone number.

Dialing is to make a call to the number entered in the phone number display window or to receive an incoming call (SEND).

Hang up performs the function (END) to hang up a call.

The recent call number performs a function (RECENT) to retrieve 50 recent calls.

MUTE is used to temporarily block a call.

Identification number selection (PREFIX), the function to select the international telephone identification number, such as 001, 002, 008.

When you use Key Phone Station, FLASH is used to return a call to another phone.

The phone book performs a function of retrieving a phone book previously stored.

The hotkey group divides frequently used telephone numbers into 5 groups and assigns 20 people to each group.

Hook on / off controls on (light) when making a call and eyes off (dark) when hanging up.

Environment setting sets the program environment such as ringtone and name change.

Recording file management controls playback and deletion of stored recording files.

Extension / External setting sets whether or not to send special extension number when using key phone.

Recording selects to start recording the call.

Record Play plays the recently recorded file.

Tray area iconization resides in the taskbar tray area.

Others include clearing phonebook content, pickup, recording management, program exit, help, general settings, redial, and more.

Referring to the operation of the present invention configured as described in detail as follows.

First, the general dialing mode will be described.

The telephone call runs the telephone operating program on the screen of the computer and directly inputs the data using the mouse or the key mode on the telephone model graphic as shown in FIG. 6 or loads the other party's telephone number on the telephone number database. Subsequently, pressing the dial button SEND automatically controls to hook on (connect) the telephone line connection unit 110. That is, when the hook-on control signal is output through the PC interface unit 200, the photo coupler ISO5 is operated to operate the latch relay RL1 of the telephone line connection unit 110 in a set state, thereby controlling the telephone line. Connect with

After the telephone line is connected, the dialing signal is input to the DTMF generating unit 130 to dial the other party's telephone number as the DTMF signal, and the user can make a phone call with the other party by wearing the earset 20. . At this time, if the call blocking button is pressed, the photo coupler (ISO4) is activated and the voice transmission (TXA) signal is blocked and muted. . That is, the line connection state is maintained until the photo coupler ISO6 is operated by the call termination button. However, when operating the hook switch 50 mounted on the ear set 20, the set (S) reset (R) coils of the latch relay (RL1) are commonly connected through the diodes (D13) and (D12), respectively. Therefore, when the hook switch 50 of the ear set 20 is pressed once, the line connection is pressed once again, and the line connection / blocking is controlled as a toggle signal according to the line blocking, that is, one push.

On the other hand, if you click the record button to record the contents of the phone call, the call voice is input to the sound card through the jacks (JACK3, 4) of the sound card connection, and the call voice is recorded and saved as a file according to the sound control of the sound card. In addition, voice is output through the speakers connected to the sound card.

At this time, the received voice signal is output from the telephone control circuit unit 120 to the received voice RXA and input to the operational amplifier U8A via the transformer T3 of the received volume amplifier 410, and the operational amplifier U8A. The amplification gain is controlled by the control of the received speech amplification control unit 420. That is, the multiplexer U10 selects a resistance value by the received volume control signal of the computer output through the voice control data buffer 205, and adjusts the amplification gain of the operational amplifier U8A by the selected resistance value. . The output signal of the received volume amplifier 410 is output as a speaker signal of the ear set 20 through the relay RL3.

On the other hand, the received voice signal RXA is branched through the transformer T3 of the received volume amplifier 410 and branched so that the received voice signal RXAA is mixed with the DTMF detector 300 and the voice signal mixing unit 430 for recording. Will be printed). The recording voice signal mixing unit 430 receives the received voice signal RXAA and the transmit voice signal TXAA input from the microphone of the ear set 20, and mixes and amplifies the sound through the operational amplifier U8C. It is output as the microphone input signal (MICINA) for recording of the card.

The recording microphone input signal MICINA is connected to the microphone input terminal of the sound card through the sound card connecting jack JACK4, which is recorded by the call recording mode and stored as a file.

On the other hand, when a phone call, the audio signal output from the sound card and the microphone signal (TXAA) of the ear set 20 and the received voice signal (RXA) through the telephone line can be mixed and transmitted, which is the sound card connection jacks (JACK3, JACK4) The audio signal input from the control unit and the transmission sound signal TXAA input from the ear set 20 are input to the mixing control multiplexer U9 as input signals Z1 and Y1, respectively, and the voice control of the PC interface unit 200 is performed. The control signal is controlled based on the mixing control signals CON1, 2, and 4 input through the data buffer 205, and the mixed and amplified signals are output through the transformer T3 through the operational amplifier U8B, and the relay RL2 is output. It selects through and inputs it as the transmission sound signal TXA of the telephone control circuit part 120. FIG. That is, the audio signal of the sound card and the microphone signal of the ear set 20 are mixed by the voice mixing unit 500 and input as a transmission voice signal TXA of the telephone control circuit unit 120 to output the mixed signal to the other party's telephone. It becomes possible.

At this time, the volume of the audio signal input from the sound card is controlled by the sound card audio control signal CON3 output through the voice control data buffer 205. That is, since the transistors Q5 and Q6 are controlled by the control signal CON3 to control the audio signal of the sound card output from the amplifier U12, the volume of the audio signal connected to the sound card is controlled.

When the computer power is cut off, the relays RL2 and RL3 operate to receive the received voice of the telephone control circuit 120 instead of the signals of the voice mixing unit 500 and the received volume amplifier 410. ) And the voice signal TXA and the ear set 20 are directly connected to each other, so that the call can be made even when the computer is turned off.

The present invention can provide a variety of functions by the operating program, first, built-in one-line, basic phone / keyphone function, and performs a general phone / keyphone functions such as dialing, hanging up, dialing. You can call out the phone number memorized in the program and make a call by automatic dialing with just one click of the mouse.When a call comes in, you can answer the call automatically by the specified number of rings.The automatic volume control by AGC circuit and the software There is a volume control function. Basically, the optimum volume can be adjusted in hardware and arbitrary volume can be adjusted in software. This is achieved by the function of each part of the received volume amplifier 400.

The operating program has its own phone book, allowing up to six phone numbers per person to be entered / modified. A search method is provided, and the searched number can be sent out with just one click of a mouse, thereby making it easy to dial a phone number.

In addition, up to 50 recently dialed phone numbers can be stored, and 5 speed dial groups can be set to manage them as shortcut groups such as relatives, communication friends, school juniors, customers, and extension numbers. It is possible to input / input and to input 20 phone numbers per group.

In addition, the output of the telephone ring through its own bell, and outputs the telephone ring through the computer speaker, and outputs the telephone ring through the sound card, so you can set the telephone ring output by specifying various telephone ring sounds. When you output the sound card, you can specify the file extension so that you can make various ringtones by making various edits such as music, your own voice, and birds. In the sleep mode, if all the above functions are turned off, only the phone message window on the screen is displayed when a call is received.

The present invention can be constructed even when the PC power off, which is possible even if the computer power is turned off by pressing the hook switch built in the earset, the telephone circuit power of the telephone circuit uses the power input from the telephone line. However, you cannot make a call when the computer is turned off.

You can output music or various sounds at the same time during a phone call, support call recording function at the same time, and listen to the recorded contents to the other party. In addition, call voice and music may be mixed and transmitted to the other party.

If you leave the room for a while, the automatic response function can be given and saved as a file, which can be sent by e-mail. The auto-response message can be arbitrarily specified and various guide services can be detected by detecting the dial button signal of the other party.

All of these functions are operated by the program, so you can modify all the functions such as number of times, memory capacity, various file settings, automatic response, add new functions, and integrate with other personal information management programs or other programs. Become.

7 is a general call flow diagram according to the present invention. As shown in the figure, a phone control screen is displayed on a screen and a phone number is input using a keyboard or a mouse or a counterpart phone number is retrieved from a phone book database.

Subsequently, when checking the other party's telephone number and clicking the SEND button, the dialing signal of the corresponding telephone number is input to the DTMF generator 130 through the PC interface 200, and the DTMF generator 130 transmits the DTMF. A signal is generated and input to the telephone main control unit U5 through the transformer T1, and the telephone main control unit U5 dials the telephone line through the telephone line connection unit 110 to make a call and talk with the other party. .

8 is a flow chart of the call recording mode, which is dialed through a keyboard, mouse, and a telephone number database, the operating program operates to understand the phone dialing and make a call with the other party by generating a DTMF signal of the DTMF generator 130. In addition, when the call recording is controlled by the occasional input during the call, the call contents speaker output of the sound card is selected, and the call recording is performed to store the recording file.

9 is a flowchart of a call recording / playback playback function / playback call recording mode, when a telephone call is input through an operation program by inputting a counterpart phone number through a key mode, a mouse, and a phone number database. Through a hardware card, you can make a phone call with the other party. At this time, if the call recording mode is selected by the occasional input by the mouse, the call output speaker output is selected as the bidirectional sound card function. Accordingly, through the sound card, call recording, recording file playback, and music file playback can be performed. Recorded file playback and music file playback signals are inputted back into the telephone board and mixed to allow the other party to talk.

The call answering function is that when a call is received from the other party, the bell 101 in the computer is driven to generate a signal, recognized by the operating program via the phone board, and a call message window is displayed on the screen to select a call. By selection, you can talk to the other party.

At this time, the gold model has an automatic answering function, which receives the received signal of the telephone circuit unit from the PC through the DTMF detection unit 300, and checks a predetermined number of rings from the PC to operate as an automatic answering function. In the automatic answering function, first connect the telephone line, connect the response message through the sound card and send it to the other party, and record the input voice by allowing the other party to input the voice recording or contact phone number according to the response message. And, the control button input is recognized by the PC through the DTMF detection unit 300 to control the automatic response.

As described in detail above, according to the present invention, a computer telephone mounted inside a computer and operated as a program can provide a computer telephone that can receive a mouse or keyboard input to an operating program, make a telephone call, and improve a function only by updating a program. Can be. It provides various functions such as general phone call, phone book management, automatic answering function and guide message transmission. In addition, even when the computer is powered off, it is possible to answer the call using the hook switch of the ear set.

Claims (9)

A sound card connection terminal 10 for supporting a recording function of a call reception voice by connecting a reception voice of a call to a microphone input terminal of a sound card in a computer through an external connection jack; An earset terminal 20 to which a microphone and earphone are connected and a hook switch 50 for controlling telephone line connection is commonly connected; A telephone line input terminal 30 connected to an external telephone line, A telephone terminal 40 connected to an external telephone, There is a separate telephone bell 101 is installed inside and connected to each of the terminals to control the dialing and receiving by the control of the computer and the call switch can be controlled regardless of the computer power using the hook switch of the earset Telephone circuit unit 100 for controlling the call, And a PC interface unit 200 including an input / output controller 210 and a bus interface unit 220 for interfacing with a PC main board so that a computer can control the functions of the telephone circuit unit 100. A computer telephone configured to control telephone functions such as making, receiving, blocking a call, recording a voice call, playing a call, managing a phone book, and automatically dialing by a computer operating program. The method of claim 1, wherein the telephone circuit unit 100, A first bridge diode BD1 connected to a telephone line input terminal 30 and an external telephone terminal 40 for matching transmission and reception signals with an external telephone line, and a second bridge for detecting a ring signal from an external telephone line; Telephone line connection unit 110 consisting of a latch relay (RALDSW-K) (RL1) for performing the hook function of a general telephone for controlling the connection of the diode (BD2) and the telephone line, Receives a ring signal through the second bridge diode BD2 of the telephone line connection unit 110 to control a call, and to control dialing and voice transmission and reception through the first bridge diode BD1, and the interface unit ( And outputs a ring signal to the 200 and controls the bell (buzzer) 101 in itself, and the telephone control circuit unit 120 receives dialing control and telephone connection control from the interface unit 200, And a DTMF generation unit (130) for receiving a dialing signal from the PC interface unit (200) to generate a DTMF signal and input it to the telephone control circuit unit (120). The method of claim 2, wherein the telephone control circuit unit 120, The ring 101 is controlled to drive the bell 101, and the ring detection signal is output to the PC interface 200, and the DTMF signal from the DTMF generator 130 and the voice output to the ear set 20 are voiced. A main control unit U5 made up of a one-chip processor which processes an input and sends it to the telephone line connection unit 110; A ring signal detection unit 121 for detecting a ring signal from the telephone line connection unit 110 and inputting the ring signal to the main control unit U5 and controlling the driving of the bell 101; The bell 101 is driven by the control of the main controller U5 and the ring signal of the ring signal detector 121, and the bell 101 is turned on / off under the control of the PC interface unit 200. Bell control section 122, A ring signal transfer unit 123 for transmitting a ring signal to the PC interface unit 200 under the control of the main controller U5; The main controller U5 outputs the voice output signal of the main controller U5 to the earset terminal 20 and the sound card connection terminal 10, and the voice input of the earset is controlled by the PC interface unit 200. And a voice input / output control unit 124 for receiving a signal and outputting a voice signal to the telephone line connection unit 110 under the control of the main control unit U5, The hook control signal of the PC interface 200 to control the latch relay (RL1) of the telephone line connection unit 110 by the hook switch 50 integrally connected to the ear set and the hook control unit 125, In conjunction with the hook control unit 125, the backup power for driving the latch relay is charged to the capacitors C12 and C13 to operate the latch relay RL1 by the hook switch 50 of the ear set even when the computer main power is turned off. And a telephone power control unit 126 configured to use a power source of a telephone line as an operating power source. The method of claim 2, wherein the PC interface unit 200 and the telephone circuit unit 100, Photo coupler (ISO2) for DTMF mute control, transformer (T1) between DTMF generator 130 and main controller (U5), photocoupler (ISO1) for turning on / off bell driving of bell control unit It consists of a photocoupler (ISO4) for controlling the earset voice input for voice mute and a photo coupler (ISO5, ISO6) for set / reset signal for hook control, and the sound card connection 10 is connected to the transformer T2. And a power supply for signal lines between the telephone circuit unit and the PC unit. The phone circuit unit 100 is connected to an external telephone line and controls a phone call and controls voice input / output through an earset, and the PC main board is configured to control a phone call while viewing the screen of a computer through the phone circuit unit 100. In the computer telephone comprising a PC interface unit 200 to interface, DTMF detection unit for decoding the DTMF signal received from an external telephone line for automatic response control in the computer main board and passing it to the main board side of the computer through the PC interface unit 200 so that the PC can process the automatic response function ( 300); A voice amplifier 400 for amplifying and equalizing the sound source; It further comprises a voice mixing unit 500 for automatically recording according to the automatic response and inputting external music through the sound card to mix and play with the telephone conversation voice, Calling / receiving calls, blocking calls, recording / playing call voices, managing phonebooks, storing and autodialing, auto answering functions, mixing call voices and playing audio on sound cards can be performed by the computer's telephone management program. And a computer telephone configured to. The computer phone according to claim 5, wherein A sound speaker input terminal 11 for inputting external sound to the voice amplifier 400; A speaker output terminal 12 for outputting the mixed voice of the voice mixing unit 500 to the speaker; A recording output terminal 13 for recording a telephone call voice through the sound card through the voice mixing unit 500; A microphone input terminal 14 for inputting an external microphone voice to the voice mixing unit 500; An earset terminal 20 connected to the telephone circuit unit 100 to perform a voice handset function and including a hook switch; Including telephone line terminal 30 for connecting a telephone line and telephone terminal 40 for connecting with an external telephone, telephone call using an earset and telephone call voice recording / playback using a sound card, mixing external sound and call voice Computer telephone, characterized in that it is made to perform automatic response processing. The method of claim 5, wherein the telephone circuit unit 100, A telephone line connection unit 110 using two bridge diodes BD1 and BD2 to detect a line connection and a ring signal with a telephone line and perform a hook switch function through a latch relay RL1; It is composed of a one-chip processor to control the dialing and earset and the voice transmission and reception function between the telephone line connection unit 110 and the PC side by the control of the main control unit (U5) to control the phone function, ring signal detection, bell 101 control And, the phone control circuit unit 120 for controlling the function, such as transfer the ring signal to the PC main board through the PC interface unit 200, And a DTMF generating unit 130 generating the dialing signal of the PC interface unit 200 as a DTMF signal and inputting it to the main control unit U5 through a transformer T1. The telephone control circuit unit 120, Main control unit (U5) consisting of a one-chip processor for controlling the previous device function, A ring signal detector 121 for detecting a ring signal, A bell controller 122 for driving the bell 101 by a ring signal and turning on / off the bell 101 by the control of the PC interface 200; A ring signal transfer unit 123 for transmitting a ring signal to the PC interface unit 200; A voice input / output controller 124 for connecting voice input / output between the main controller U5 and the ear set and the sound card; A hook switch 50 for controlling the latch relay RL1 by a toggle signal, and a photo coupler ISO5 (ISO6) for controlling the latch relay RL1 by a PC dial-up control. Hook control unit 125 to control, Diodes D14, D15, capacitors C11, and C15 are installed to charge and provide power for operating the latch relay RL1 by the hook switches and photocouplers ISO5 and ISO6. A computer telephone, comprising: a telephone power control unit (126) configured with a condenser (C3) and a zener diode (D3) to use power through a line. The method of claim 5, wherein the PC interface unit 200, A first address decoder 201 for decoding the address data of the PC main board, A switch 202 for setting address decoding, A second address decoder 203, which is a gate logic that decodes an address based on the switch set signal of the first address decoder 201 and generates a clock signal, an input gate signal, a set / reset signal, and the like; A telephone function telephone function control signal buffer 204 for buffering telephone control data of the PC based on the clock signal of the second address decoder 203 to buffer bell control, hook control, talk mute, button dialing data, and the like; A voice control data buffer 205 for buffering voice control data such as reception volume control and mixing control from a PC; And an input buffer (206) for buffering data for transferring information such as tone recognition, ring check, etc. from the telephone circuit control unit to the PC side. The method of claim 5, wherein the voice amplifier 400 and the voice mixer 500, Received volume amplification unit 410 receives the voice signal (RXA) received through the telephone control circuit unit 120 through a transformer and outputs the DTMF detection unit 300, and amplifies and outputs through the operational amplifier (U8A) And the resistance value for amplification factor control between the input terminal and the output terminal of the operational amplifier U8A of the received volume amplifier 410 based on the control data of the voice control data buffer 205 of the PC interface unit 200. Receiving audio amplification rate control unit 420 for controlling the amplification rate by A sound card voice amplification control unit 440 which amplifies a voice signal connected to a sound card and directly connects the amplified or unamplified signal based on a control signal CON3 of the voice control data buffer 205; , A recording voice signal mixing unit 430 for mixing the received voice signal RXAA and the transmit voice signal TXAA and outputting them as a recording microphone input voice signal MICINA; Based on the control signals CON1, 2, and 4 of the voice control data buffer 205, the reference value of the operational amplifier of the received volume amplifier 410 is generated through the multiplexer U9, and the voice input of the earset A voice mixing unit 500 which selects a voice signal input through the sound card voice amplification control unit 440 and mixes it through an operational amplifier U8B and outputs the amplified signal through a transformer T3; The voice input signal TXA of the telephone control circuit unit 120 is selected by selecting one of the voice signals mixed by the voice mixing unit 500 or the voice signal of the ear set through the relay RL2 according to the power on / off of the computer. A transmission voice selection unit 610 for inputting Receiving voice selector for selecting the amplified signal of the received volume amplifier 410 or the received voice RXA of the telephone control circuit 120 through a relay RL3 and connecting it to the ear set according to the power on / off of the computer. And 620, further comprising a computer telephone.