KR200168682Y1 - Computer card type multi-function telephone with dtmf tone decoder - Google Patents

Abstract

The present invention integrates a DTMF tone decoder and multiple mixers into a built-in hand-free telephone card used in a computer, and has a built-in computer built-in multifunction telephone card equipped with a DTMF tone decoder that can use a sound card that is normally built into a computer. It is about.

To this end, the present invention provides a ring signal detection unit for detecting ring signals of trunk lines, a DTMF unit for encoding and decoding data and DTMF tones, a telephone unit for transmitting and receiving DTMF tones for voice calls, and input / output of a sound card. Of course, a mixer unit for input / output of the handfree ear microphone and the telephone unit, and a computer bus interface for controlling the ring signal detection unit, DTMF unit, telephone unit, mixer unit, and handfree ear microphone using software of a computer. There is a characteristic.

Description

COMPUTER CARD TYPE MULTI-FUNCTION TELEPHONE WITH DTMF TONE DECODER}

In general, a one-way (SIMPLEX) transmission of data using DTMF tones is applied to an answering machine or to an ARS system such as a bank and a telecommunications company. Data such as passwords and telephone numbers are encoded and transmitted in DTMF tones and passed through the DTMF tone decoder at the receiving end.

On the other hand, in order to establish an integrated environment of a telephone and a computer, for example, a mouse phone with a built-in mouse and a keyboard phone with a built-in phone are used for practical use. The interface is impossible and has nothing to do with the inputs and outputs of the sound card typically built into a computer.

However, a computer-embedded radio receiving card with a telephone filed by the applicant as Practical-1998-0028150, i.e., a built-in hand-free telephone card used in a computer, unlike conventional telephones, does not have any possible hardware or software resources of the computer. You can write an extremely flexible application program using a bar, monitor, keyboard, memory, multitasking, and interrupts.

The present invention extends and modifies the hardware of the built-in hand-free telephone card used in the computer, and transmits DTMF tone encoded data transmitted through the keyboard of the computer and displayed on the monitor of the computer, while DTMF tone decoded data is received. The object of the present invention is to provide a computer built-in multifunction telephone card equipped with a DTMF tone decoder that can display on a computer monitor, that is, make a voice call and transmit and receive data by DTMF tones. It is.

In addition, the present invention not only can automatically answer the absence by using the input and output of the sound card that is usually built into the computer, but also can store the contents of the call recorded on the computer, or enjoy the CD or MP3 call with the other party. We will provide various implementations.

In order to achieve the above object, the present invention provides a ring signal detection unit for detecting ring signals of trunk lines, a DTMF unit for encoding and decoding data and DTMF tones, a telephone unit for transmitting and receiving DTMF tones, and making voice calls; A mixer bus for input and output of the sound card as well as a handfree ear microphone and a phone unit, and a computer bus for controlling the ring signal detector, DTMF unit, telephone unit, mixer, and handfree ear microphone using software of a computer. It is characterized by being composed of interfaces.

1 is a block diagram of a computer built-in multifunction telephone card equipped with a DTMF tone decoder according to the present invention.

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

Fig. 1 is a block diagram of a computer-embedded telephone card equipped with a DTMF tone decoder according to the present invention. In a trunk line L1 and L2, a voice call is made with a ring signal detection unit 2 that detects a ring signal, and DT DT tones are transmitted and received. A DTMF unit 4 capable of encoding and decoding data and DTMF tones by adding a DTMF tone decoder to the telephone unit 3 having a telephone DT3 tone encoder for dialing, connected to the telephone unit 3 for dialing. And the input / output of the telephone section 3 and the handfree ear microphone 6 as well as the input / output of the sound card 8a which is usually built in the computer 8 in the mixer section 5 composed of a plurality of mixers. It is connected.

On the other hand, the output terminal of the ring signal detecting unit 2, the control signal terminal of the telephone unit 3, the control signal terminal and data input / output terminal of the DTMF unit 4, the mixer unit 5 and the handfree ear microphone 6 are controlled. At the signal end, a computer bus interface 7 connected to the computer 8 is connected, whereby automatic response is not only possible using the input / output of the sound card 8a which is normally built in the computer 8, , You can record the contents of the call in the computer (8) to record or enjoy the CD or MP3 call with the other party, and to take full advantage of all possible hardware or software resources of the computer (8) to implement various other functions In short, you can write extremely flexible application programs using monitors, keyboards, memory, multitasking, interrupts, and so on.

The process of making and receiving voice calls and transmitting / receiving data by DTMF tones using a computer built-in multifunction telephone card equipped with a DTMF tone decoder according to the present invention as described above is as follows. .

When both the DTMF tone decoder and encoder of the DTMF unit 4 are enabled in A and B during a voice call, for example, A disables the mixer unit 5 and the DTMF tone decoder of the DTMF unit 4 is used. Since the data transmission start code is transmitted after deserializing, when the data transmission starts, B receives the data transmission start code of A through the DTMF tone decoder of the DTMF unit 4 so that the error can be reduced. (5) is deactivated, the DTMF tone encoder of the DTMF unit 4 is deactivated, and the remaining data is received.

Then, when A transmits the data transmission end code, enables the DTMF tone decoder of the DTMF unit 4 and enables the mixer unit 5 to end data transmission, B receives the data transmission end code of A. As a result, the DTMF tone encoder of the DTMF unit 4 is enabled, and the mixer unit 5 is enabled.

On the other hand, B confirms the data sent by A, and then responds by voice or transmits data. That is, A and B make a voice call and communicate with each other using DTMF tones.

As described above, according to the present invention, it is possible to make a voice call and communicate using data transmission and reception using DTMF tones, so that, for example, the user can not only talk silently at night, but also inevitably intrudes during the voice call. It will have the characteristics to protect personal privacy.

In addition, the present invention can implement the following functions by using the input and output of the sound card that is usually built into the computer.

* You can listen to the sound card output with a hand-free ear microphone.

* Hand-free ear microphones can be used as a microphone for a sound card.

* You can talk while listening to the sound card output with the person you are calling.

* You can record the conversation by saving it to your computer.

* You can answer automatically when you are away.

Claims (2)

A ring signal detection unit 2 for detecting ring signals of the trunk lines L1 and L2; A telephone unit 3 connected to the trunk lines L1 and L2 to make a voice call and transmit and receive DTMF tones; A DTMF unit 4 formed so as to encode and decode data and DTMF tones by adding a DTMF tone decoder to the telephone unit 3 having a conventional DTMF tone encoder for dialing; A mixer section 5 which connects the input / output of the telephone section 3 and the handfree ear microphone 6 as well as the input / output of the sound card 8a which is typically built in the computer 8, which is composed of a plurality of mixers, Consisting of a computer bus interface 6 which connects the ring signal detection section 2, telephone section 3, DTMF section 4, mixer section 5, and hand-free ear microphone 6 with a computer 8. A computer built-in multifunction telephone card with a DTMF tone decoder. The method of claim 1, wherein an application program is created that utilizes all possible hardware or software resources of the computer 8, such as a sound card 8a, as well as a monitor, keyboard, memory, multitasking, interrupts, etc. You can make and receive voice calls and send and receive data using DTMF tones. Let's enjoy playing CDs, MP3s, etc. with the person you're talking to, Save the call to the computer (8) to record, or A computer built-in multifunction telephone card equipped with a DTMF tone decoder, characterized in that an automated answer is available during an absence.