KR101162232B1 - VoIP Interface Using By USB Apparatus and Voice Communication User Environment Modeling - Google Patents

Abstract

The present invention relates to a US cost Internet telephony interface module, wherein the Internet phone driving software is embedded in a USD mobile memory storage device or a multi-codec player with a U.S. mobile portable storage device, and connected to an USB port of a computer connected to the Internet network. The software of the messenger function is automatically executed, and the Internet phone user can communicate with another Internet phone user connected to the Internet using the headset and the system of the present invention without complicated installation process.

The present invention relates to a portable memory storage device which is designed in a portable USD portable memory storage device or a USB code detachable multi-codec player; USB transceiver means for transmitting voice signal digital data to the storage device or for transmitting Internet telephone driving software stored in the storage device to a computer; Downstream transceiver means for transmitting to the computer voice and drive software data transmitted through the USB transceiver means; Upstream transceiver means for transmitting data transmitted through said downstream transceiver means or voice digital data input through a microphone to a computer; Headphone amplifier means for reproducing and amplifying the voice digital data received by the upstream means into an analog voice signal that can be heard by Internet telephone users; And a microphone signal gain adjuster means, which is a preprocessing step, for converting and transmitting the voice signal of the Internet telephone user to digital data to the upstream means.

Internet phone, USB audio codec interface device, main controller, USB portable storage device, downstream transceiver, USB hub controller

Description

Device and Control Method of Internet Telephony Interface Module Using UBS Device and Voice Call User Environment Modeling {VoIP Interface Using By USB Apparatus and Voice Communication User Environment Modeling}

1 is a block diagram of an Internet phone device of a conventional MP3 player

Figure 2 is a perspective view schematically showing an internet phone interface module using the USB interface device according to the present invention

Figure 3 is a detailed block diagram of the Internet telephony interface module connected to the USB storage device means, computer and headset means in the present invention;

4 is a block diagram of a user environment modeling algorithm performed by the main controller of the present invention.

5 is a flowchart of operation data using the Internet phone interface module of FIG.

Domestic application 10-2004-0020118 Internet phone device of MP3 Player and its control method

Domestic application 10-2001-0087378 How to implement VoIP gateway with USB port

Domestic application 10-2000-0034411 Internet phone using UBS and internet phone network system using same

The present invention relates to a USS Internet phone module interface, which is connected to the USB port of a computer connected to the Internet, and which is capable of using an internet phone using a headset and the interface module of the present invention. of service environment, and the user's environment model variable that checks the interference and attenuation according to the user's surroundings to the computer to transmit the optimal internet phone environment automatically. The present invention relates to an internet telephony interface module.

 The number of services provided on the Internet is increasing and the number of services provided on the Internet is increasing exponentially with the increase of the number of Internet users worldwide, and the use of the Internet telephony service that provides a free telephone call service has recently increased. In this method of using the Internet phone service, a duplex sound card and a head set providing a two-way call service are installed in the user's computer device, and the user directly connects to a company providing the Internet phone service. It adopts a method of entering a phone number to call through a keyboard or mouse. In addition, an Internet telephone combined telephone type in which an Internet telephone function is added to a general telephone is developed and spread by using a serial port or a USB port of a general computer device. Korean Patent Publication No. 2003-0057007 proposes to implement a VoIP gateway with a built-in USB port, and implements a system that can monitor and manage a plurality of VoIP gateways using a USB hub.

Korean Patent Application Publication No. 2000-0054763 provides a special firmware program for supporting an audio codec and a USB interface inside an internet phone in an internet phone using an internet phone and an internet phone network system using the same. It has been proposed to provide Internet telephony services without the need for internet telephones, and is characterized by the provision of an Internet phone network system that provides an Internet phone telephone call function without the need for a telephone company to provide an Internet telephone system using USB. This is a big advantage of using USB as a bus interface between Internet phone and computer device, and the general phone function and the use of Internet phone, but this increases the cost of hardware that requires the purchase of a separate Internet phone. The disadvantage is that a complicated process for accessing the phone service provider side is required.

Korean Patent Application No. 10-2004-0020118 adds Internet phone function to MP3 player in internet phone device and control method of MP3 player, and can transmit and receive voice / text / data as well as MP3 function and save data. An internet phone apparatus and a control method thereof are proposed.

1 is a block diagram showing an Internet phone apparatus and a control method of a conventional MP3 player.

 As shown in FIG. 1, the conventional Internet phone device includes a USB connector 102 for using a USB interface of a PC USB connector 101 of a computer, a hub controller 106, and an Internet phone flash memory 104 for an Internet phone firmware. A flash controller 103, an audio codec 105, an audio switch 113, an MP3 codec 107 for an MP3 function, a flash memory 109, an FM radio tuner 108, and the like. When the USB connector 102 is connected to the computer PC USB connector 101 to perform the data download operation of the MP3 player, the MP3 codec 107 stores data in the flash memory 109 through the hub controller 106. During the process, the audio codec 105 converts the transmitted voice signal and the received voice data through the audio switch 113 according to an internet phone use request or a received message. The voice data conversion data input to the micro are stored in the Internet phone flash memory 104 by the flash controller 103 through the hub controller 106 or the USB interface to the USB connector 101 via the USB connector 102. The data is delivered to the other party of the Internet phone. In addition, the digital voice data transmitted from the other party of the Internet phone user is connected to the speaker 110 through the analog conversion of the audio codec 105 via the USB connector 102 and the hub controller 106 through the PC BUS connector 101. Output to the headphone 111. This is characterized in that the MP3 player is equipped with an Internet phone function as an add-on, but there is a drawback in designing or purchasing a dedicated MP3 player with an Internet phone add-on.

Accordingly, an object of the present invention is to solve the problems associated with the case where the conventional Internet phone is added and can only operate in a dedicated MP3 player,

An object of the present invention is a separate Internet phone in the form of an accessory with a USB interface, easy to move and serially connected to a portable memory storage device or a MP3 player with a USB storage device that is commonly used as an external storage medium. The present invention provides an internet phone interface device and a control method thereof by connecting to a USB port of a computer without purchasing a dedicated MP3 player or a separate Internet phone.

Another object of the present invention is to automatically detect the user's Internet phone user environment to minimize the interference or attenuation of the signal in the computer to provide an optimal call environment because the performance of the computer sound card and controller are different It is difficult to implement the same system call performance in the system equipped with the Internet telephony interface module of the present invention is to provide an Internet telephony interface device that can be uniformly configured to make the call with the best sound quality.

According to the present invention for achieving the above object, 'Internet phone interface module and apparatus using the USD device and voice call user environment modeling,'

In a typical USB device consisting of a USB cost upstream transceiver for connecting to a computer, a downstream transceiver for connecting to a removable storage memory, and a power supply,

The downstream transceiver is connected to an external USB non-removable memory device that stores a program for using an Internet phone, and a routing logic and repeater for controlling a data path when using an Internet phone or a simple external memory storage device or a multicodec player, and a hub controller. ;

Main controller and peripheral storage memory and data memory for processing two-way voice signal digital data when using the Internet telephone and analyzing and modeling distortion according to user's call volume and ambient interference noise;

It is controlled by the main controller and consists of a digital converter for converting the user's voice to digital when using the Internet phone, an analog converter and a gain controller for converting digital voice data through the Internet into a voice signal.

According to the present invention for achieving the above object, the method of controlling the 'Internet phone interface module and the device using the UBS device and the voice call user environment modeling',

Routing logic and repeater to control data path when using internet phone or mobile USB storage device, and UBS hub controller, main controller responsible for modeling user call environment and digital signal processing of voice signal, and user's voice signal and data when using internet phone In the method for controlling a U.S. cost internet phone interface module device having a digital converter and an analog converter for converting,

A first step of connecting the U.S. cost Internet phone interface module to the U.S. port of the computer to drive an Internet phone operation program in the mobile U.S. storage device;

A second step in which the operation program of the first step initializes the U.S. cost Internet phone interface module to prepare for use of the Internet phone;

A third step in which the user of the Internet phone connects the headset and inputs a voice and prepares a user environment modeling parameter by modeling the user's voice sensitivity, pitch, and external signal during the preparation of the second step;

A fourth step of receiving the modeling parameter of the third step and dialing data of an Internet phone user from a computer, connecting to an external Internet server and executing an Internet phone call;

And a fifth step of implementing a sound codec and implementing a two-way call by using a codec variable referring to QoS guarantee and an optimal user environment model of the received data and the transmitted data during the execution of the fourth step of the Internet phone. do.

When described in detail based on the accompanying drawings, preferred embodiments of the present invention for solving the above problems are as follows.

Figure 2 is a perspective view schematically showing an internet phone interface module using the USB interface device according to the present invention.

Internet call is a voice call is transmitted in the form of Internet packet data through the counterpart computer 300 and the user computer 400 connected to the Internet network 200, even if all the callers or only users, Figures 2 and 3 A combined U.S. cost internet phone interface module 500 of a U.S. audio codec interface device 600 and a U.S. removable storage device 700 is connected to a U.S. port of a user's computer, and a user's headset 800 is U.S.B. The Internet phone can be used while being connected to the audio codec interface device 600.

Figure 3 is a detailed block diagram of the Internet telephony interface module connected to the USB removable storage means, computer and headset means in the present invention.

According to the present invention, the U.S. cost internet phone interface module 500 is composed of a combination of the U.S. audio codec interface device 600 and the U.S. mobile storage device 700 and is connected to the U.S. port of the user computer 400. The USB audio codec interface device 600 includes a USB hub controller 610, a routing logic and repeater 608, a downstream transceiver 612, an upstream transceiver 609, a main controller 620, and a storage memory for signal processing ( 605, a data memory 606, and an analog converter 604.

The USB hub controller 610, routing logic and repeater 608, downstream transceiver 612, upstream transceiver 609 controls the data path when using the Internet phone or multi-codec player.

The master controller 620, the signal processing storage memory 605, and the data memory 606 perform signal processing and user environment modeling 630 of voice data through the USB interface 607 to use the Internet telephone. .

In addition, in order to transmit the other party's voice digital data signaled by the main controller 620 to the headset 800 via the digital converter 602, the headphone amplifier 601 for signal amplification and the microphone of the headset 800 are input. A gain controller 603 for adjusting the strength of the voice signal is further provided, and an analog converter 604 for converting the voice signal into digital data.

 The USB portable storage device 700 includes a power source 702, a USB transceiver 701, a USB function controller 703, a frequency oscillator 704, a DMA controller 707, a reception buffer 705, and a transmission buffer 706. ), A multicodec controller 709.

The power source 702, the USB transceiver 701, the USB operating controller 703, the frequency oscillator 704 transmit the Internet phone driving software of the portable storage device to the USB audio codec interface device 600 through the USB connection. It acts as a USB interface means for receiving voice data of an Internet telephone or data of a user computer 400.

The DMA controller 707, the reception buffer 705, and the transmission buffer 706 are used to communicate with the USB interface means and to transmit and receive with the storage memory 708 for storing the data.

The multicodec controller 709 is connected to the USB interface means and stores the audio compression format MP3 (MPEG-1 Layer III standard), AAC (MPEG-2 Advanced Audio Coding), and OGG (Ogg). Play and control data such as Vorbis) and WMA (Window Media Audio).

When described in detail with reference to Figure 3 attached to the operation of the US cost Internet phone interface module device according to the present invention configured as described above are as follows.

First, when a serial connection is made between the USB portable storage device 700 and the USB audio codec interface device 600 through a connector, the USB transceiver 701 and the downstream transceiver 612 transmit electrical signals of the physical layer of the USB interface. Internet phone driving program or master controller 620 of the USB storage device means 700 in the routing logic and repeater 608 according to the control signal of the USB hub controller 610 of the USB audio codec interface device 600. It transmits the voice signal processing data transmission to the host USS controller of the user computer 400, which is connected in series with the USS port of the user computer 400 to drive the upstream transceiver 609 that satisfies the electrical signal.

On the other hand, in order to comply with the data transmission method and the electrical specification of the USB protocol standard of the interface driving program, the USB mobile storage device 700, the power supply 702 is a power source 611 in the USB audio codec interface device 600. The UESB function controller 703 transmits data to the storage memory 708 while generating a control signal in synchronization with the frequency oscillator 704 that is connected to the device and is supplied with power and oscillates the UESB clock. At this time, the DMA controller 707 generates a control signal and an address to directly transmit data from the memory of the reception buffer 705 and the transmission buffer 706 having the first-in-first-out memory buffer structure to the storage memory 708. The codec controller 709 then acts as a removable storage memory controller rather than as an audio compression format data player.

In other words, a user who wants to use an Internet phone stores an Internet phone driving program in the USB portable storage device 700 and serially connects to the USB audio codec interface device 600 of the present invention. This is completed and again connected to the USB port of the user computer 400, the use of the Internet phone is possible.

If the user computer 400 does not have an application program for performing an Internet phone function, and only requires access to the USB according to the present invention, the Internet phone driving program is directly transmitted from the user computer 400 so that the Internet phone can be used. Will be set.

When the Internet phone driving program is executed in the user's computer 400, the USB hub controller 610 in the USB audio codec interface device 600 is a main controller 620, a digital converter 602, a headphone, which is an audio codec means of the Internet phone. One channel control and routing logic and repeater 608 of the downstream transceiver 612 via the USB interface 607 for transmitting and receiving voice signal processing data to the amplifier 601, the analog converter 604, the gain regulator 603. The upstream transceiver 609 controls the path to deliver voice digital data to the user computer 400. In this case, the gain of the analog voice input of the microphone of the user headset 800 is controlled by the gain controller 603. The analog voice data is converted into digital data through the analog converter 604 and transferred to the main controller 620. The machine 620 is a digital voice data of the other party through the reverse path of the voice digital data transmission of the USB hub controller 610 described above the digital voice data transmitted to the user computer 400 through the Internet network 200. The digital converter 602 converts the analog voice signal into a headphone amplifier 601 and transmits the same to the headphone of the headset 800.

4 is a block diagram of a user environment modeling algorithm performed by the main controller of the present invention.

Here, the algorithm of the user environment modeling 630 of the main controller 620 is performed by considering the interference of the signal and the attenuation of the signal according to the usage environment of the Internet phone user wearing the headset 800, and the performance of the headset. Form input analyzer 631, pitch analyzer 632, amplifier analyzer 633, pole-zero analyzer 634, user environment modeling formatter 635 by using the digital data through the analog converter 604 to the voice input signal To perform functions.
The master controller 620 is a digital signal processor (DSP) capable of high-speed operation and performs digital signal processing such as a silent state, a call state, and an echo state based on the collected data according to the call state of the Internet user. The main controller 620 includes a formant analyzer 631, a pitch analyzer 632, an amplifier analyzer 633, a pole-zero analyzer 634, and a user environment modeling formatter 635.

The formant analyzer 631 performs an algorithm for determining a threshold value of the collected voice digital data, respectively, to produce a constant pattern and reference data.

The pitch analyzer 632 performs an algorithm for detecting the maximum peak value of the voice signal according to the voice pattern of the Internet telephone user according to the time shift.

The amplifier analyzer 633 performs an algorithm for detecting the highest and lowest values of the voice digital data according to time displacement.

The pole-zero analyzer 634 analyzes corresponding data in real and imaginary areas according to frequency conversion of the collected voice digital data.

The user environment modeling formatter 635 reconstructs the result data of the analyzer into a certain data packet. The resulting user environment modeling parameters are passed to user computer 400.

FIG. 5 is a flowchart illustrating a method of controlling an internet phone call using the internet phone interface module of FIG. 3.

As shown in the drawing, when the U.S. cost Internet phone interface module 500 is connected to the U.S. port of the user computer 400, the Internet phone operation program of the U.S. mobile Internet storage interface unit 700 in the U.S. cost Internet phone interface module 500 A first step of driving; A second step in which the operation program initializes the U.S. cost internet phone interface module 500 and prepares to use the internet phone; A third step in which the user of the Internet phone connects the headset 800 and inputs a voice to model the user's voice sensitivity, pitch, external signal, and the like, and transmit a user environment modeling parameter; Receiving a modeling parameter and dialing data of an Internet telephone user from a computer, connecting to an external Internet server, and executing an internet telephone; The fifth step of implementing the sound codec driving and the two-way call using the codec variable referring to the QoS guarantee of the received data and the transmitted data and the optimal user environment model during the execution of the Internet phone.

In the Internet phone operation performed in this manner, first, the user connects the U.S. cost Internet phone interface module 500 to the user computer 400 in the first step, and the user connects the headset 800 to the U.S. cost Internet phone in the second step. After connecting to the interface module 500 and performing the initialization process to the U.S. cost internet phone interface module 500, in the third step, the user inputs a test voice signal to the microphone and the U.s. cost internet phone interface module 500 is a user environment. In the fourth step, the user computer 400 receives the user's dialing data and connects to the external Internet server, and the fifth step implements the two-way call. .

As described above, according to the present invention, when connected to an MP3 player with a built-in USB portable memory device or a USB portable memory device is used as an accessory while moving, and connected in series with the USB port of the computer, there is an advantage as an Internet phone device. .

In addition, the provision of the USB interface device and the voice call user environment model device included in the Internet phone interface module device according to the present invention can recognize the Internet phone interface module and the Internet phone program only by using a USB connection with any computer with a built-in Internet connection. While performing the automatic execution of the advantage of providing an optimal user call environment, there is a convenient effect that allows the user to easily use the Internet phone without a separate driver and program installation process.

Claims (4)

In the Internet telephony interface module device using UBS device and voice call user environment modeling, A USB audio codec interface device which receives the Internet phone driving software through the downstream transceiver and connects it to the USB port of the user computer through the upstream transceiver, and performs user environment modeling and digital signal processing of the internet phone; In the U.S. cost Internet phone interface module comprising a combination of U.S. mobile storage means for transferring from the storage memory in which the Internet phone driving software is stored to the U.S. audio codec interface device using U.S. interface interface protocol, The USB audio codec interface device includes a main controller, a signal memory, and a storage memory for data processing, including a signal processing and user environment modeling of voice data through a USB interface for use of the Internet telephone. The main controller, A formant analyzer for determining a threshold of the collected voice digital data, respectively, to produce a constant pattern and reference data; A pitch analyzer for detecting a maximum peak value of a voice signal according to time displacement; An amplifier analyzer for detecting the highest and lowest values of voice digital data according to time displacement; A pole-zero analyzer for analyzing corresponding data in real and imaginary areas according to frequency conversion of the collected voice digital data; A user environment modeling formatter configured to reconstruct result data of the analyzers into a predetermined data packet; US cost Internet phone interface module comprising a. delete The method of claim 1, USB audio codec interface device, A UBS hub controller, a routing logic and repeater, a downstream transceiver, and an upstream transceiver for controlling a data path when using an Internet telephone or a multicodec player; A headphone amplifier for signal amplification, a gain controller for adjusting the strength of the voice signal input from the microphone of the headset, and a voice signal for transferring the other party's voice digital data processed by the main controller to the headset through a digital converter. An analog converter converting the digital data; US cost Internet phone interface module, characterized in that further comprises a. delete

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