KR20010000880A - one-chip processor for integration processing of audio/video signal - Google Patents

Abstract

PURPOSE: A one chip microprocessor for integrated processing the voice/image signals is provided to transmit voice/image signals of a VolP phone, a chat or a portable digital camera to a PC in a high speed through the internet, and to process the voice/image signals synthetically by using the one chip microprocessor. CONSTITUTION: A one chip microprocessor for the synthetic management of voice/image signal includes connection ports for the connections with many input parts, a main control part(110), which stores voice/image signals input from the input parts into a memory part(90) and controls the transmitting/receiving of the stored voice/image signals, multiple points control part(120), and a USB(Universal Serial Bus)(80), which the voice/image signals stored in the memory part(90) are compressed by using an algorithm of the compression part(50) and are transmitted to the terminal.

Description

One-chip processor for integration processing of audio / video signal

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one chip microprocessor for processing voice / video signals in connection with a computer network system. And a microprocessor for processing voice / video signals such as a digital voice recorder using a single microprocessor, and for simultaneously transmitting the voice / video signals over the Internet.

Due to the recent development of technology, a plurality of computers are configured in one network, and each computer of the network is configured to transmit and receive data in various standards for communication protocols.

Many computers configured based on the Internet use a sound card for processing a compression ratio of a voice signal and a PC camera module for processing a video input.

However, since each terminal constituting the network as described above purchases and uses a sound card for processing a voice signal and a PC camera module for receiving a video image on the Internet, it is expensive and can be used for a computer. Each installation has a problem that is quite inconvenient.

In order to solve the above problems, the present invention provides a one-chip microprocessor for voice / video signals such as a VoIP phone, a video conference or a chat, a portable digital camera, and a digital voice recorder used on the Internet. On the other hand, the purpose is to provide a high-speed transmission of the audio / video signal over the Internet.

As a means for achieving the present invention, a microprocessor for configuring a plurality of computers in a network, and for transmitting audio / video signals to each computer, comprising a connection port to be connected to a plurality of input means, the input Main control means for storing the audio / video signal input from the means in the storage means and controlling the transmission and reception of the audio / video signal stored in the storage means; Multi-point control means for connecting the video conferencing system between the networks to multiple points; And a USB to compress the audio / video signal stored in the storage means by using an algorithm of the compression means and transmit the same to the terminal.

1 is a block diagram showing the configuration of a main controller of a one-chip microprocessor for integrated audio / video signal processing according to the present invention

2 is a block diagram showing the internal configuration of a one-chip microprocessor for the integrated audio / video signal processing according to the present invention

3 is a block diagram showing the overall structure for the integrated audio / video signal processing according to the present invention

* Brief description of the drawings

10: memory management unit 20; Defective Pixel Collector

30: image signal processor 40: control unit

50: compression means 60: voice codec

70: power control unit 80: USB

90,91,92: storage means 100: system circuit portion

110: main control means 120: multi-point control means

200: terminal 300: the Internet

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

Figure 1 is a block diagram showing the configuration of the main controller of the microprocessor for the audio / video signal integrated processing according to the present invention.

As shown in FIG. 1, the network is connected to a plurality of terminals, but the USB (Universal Serial Bus) driver of the terminal and the USB 80 of the system circuit unit 100 are connected to each other so that data communication is possible.

As an internal configuration of the main control means (Voice over IP Dual Mode One Chip) 110, the memory management unit 10 is connected to the storage means 90 to manage the memory, the operation of the system stored in the storage means 90 Manage the initialization program and operating system for.

The control unit 40 transmits the data in the main control means 110 through the IIC master, and controls the data of the storage means 90 and the multi-point control means 120 for connecting the video conferencing system between the multi-points. It is controlled to meet the protocol of open system.

The voice codec 60 converts the analog signal input to the microphone into digital through an analog-to-digital converter, and then compresses it to about 10: 1 in accordance with G.723.1, which is a standard specification of an Internet phone (VoIP phone). This compressed data is transferred to a PC via USB, and the PC transmits this data to the other party via the Internet.

In addition, the pixel data is provided from an external strobe camera light, a digital camera and an image camera, and the image is restored by the defective pixel collector 20 which automatically searches for and repairs a damaged pixel among the images of the pixel data. The signal processor 30 converts the pixel data input through the defective pixel collector 20 into a Bayer format to correct the gamma according to the characteristics output to the monitor, the automatic exposure adjustment according to the change in the amount of light, and the change in the light source. The automatic color correction is transmitted to the memory management unit 10 and stored in the storage means 90.

The audio / video signal stored in the storage means 90 compresses data through an RGB block according to the format of the compression means 50, and the compressed data is transmitted to an external terminal 200 through the USB 80. do.

The driving power of each unit is supplied from the power control unit 70 to each unit.

Figure 2 is a block diagram showing the internal configuration of a microprocessor for audio / video signal integrated processing according to the present invention.

As shown in FIG. 2, the main control unit 110 controls the system circuit unit 100 and is configured to control data stored in the first and second storage units 91 and 92 of the storage unit 90. The first storage means 91 is composed of an initialization program for operating the system and a memory (EEPROM) in which the operating system and application programs of the system are stored. The second storage means 92 temporarily stores an audio / video signal. It consists of a memory (SDRAM) to store.

In addition, the multi-point control means 120 for connecting the video conference system between the multi-point is connected to the main control means 110, the multi-point control means 120 is the second storage means 92 and the main control means 110 LCD display means 140 having an editing function so as to confirm an image acquired in advance through an image acquisition means such as a digital camera connected thereto or delete the acquired image, and to the second storage means 92 and the image acquisition means. Flash memory means 130 capable of recording the image obtained by the connection is connected.

The power control unit 70 is converted into an arbitrary voltage through a DC / DC converter to the battery power is supplied to the power required by each drive unit.

The connection ports connected to the main control means 110 are provided with a strobe camera light connection port, an image camera connection port, an external microphone connection port, an external speaker connection port, and an external LCD connection port.

Figure 3 is a block diagram showing the overall structure of a microprocessor for audio / video signal integrated processing according to the present invention.

As shown in FIG. 3, data stored in an initialization program for operating the main control means 110, an operating system and an application program of the system, and a process or memory for processing digital audio / video signals input through various external connection ports. Storage means 90 as a first storage means (91) programmed to transmit according to the communication protocol when the transmission, and a second storage means (92) for storing audio / video signals input by the port connected to the outside. This is made up.

When transmitting the image signal to the system circuit unit 100 First, the image (or video) obtained from the image sensor is input to the defective pixel collector 20, the image signal input to the defective pixel collector 20 The image sensor automatically detects the damaged pixel, recovers the damaged pixel, and transmits the damaged pixel to the image signal processor 30. The image signal processor 30 converts the input RGB signal into a video signal of YCbCr format to correct the gamma according to the characteristics output to the monitor, the automatic exposure adjustment according to the change in the amount of light, and the automatic color correction according to the change in the light source. Is transmitted to the memory management unit 10 and stored in the second storage means 92.

When the user is given a message to transmit the video signal through the terminal 200, the main control means 110 is a USB of the terminal 200 by the USB 80 to the video signal stored in the second storage means (92) Is sent to the driver 210. In addition, the video signal is acquired through the twain driver 220 of the terminal 100 and transmitted to the Internet through the video decoder 230, H. 323 240, and the local array network interface 270. Therefore, the video signal transmitted to the Internet is reproduced and transmitted in real time in the J-Pack (JPEG) format.

In addition, when transmitting a voice signal to the system circuit unit 100, first, the voice signal received through the microphone is stored in the second storage means (92).

When the user is given a message for transmitting the voice signal through the terminal 200, the main control means 110 is the USB of the terminal 200 via the USB 80 to the voice signal stored in the second storage means 92 Is sent to the driver 210. In addition, the H.323 is transmitted to the Internet through the H.323 240 and the local array network interface 270. The video signal transmitted to the Internet is reproduced and transmitted in real time in H.323 format.

In addition, in the case of transmitting a voice signal to the system circuit unit 100, first, the voice signal is converted into a digital signal through an analog-to-digital converter, and then compressed into a G.723.1 standard VoIP phone standard through an audio codec (60). ) Is stored in the second storage means 92.

When the user is given a message to transmit the voice signal through the terminal 100, the main control means 110 is the USB of the terminal 80 via the USB 80 to the voice signal stored in the second storage means 92 Is sent to the driver 210. In addition, it transmits to the Internet through the H.323 and the local array network interface 270. The voice signal, which is compressed to G.723.1 and transmitted to the Internet, is restored in real time in the gateway system and transmitted to a general telephone through a switch or transmitted to a computer in G.723.1 compression format to be reproduced in real time in H.323.

Therefore, it is possible to use the network subscribers such as Internet telephony, Internet video, remote videoconferencing, video chat, electronic album, video album, audio document creation, portable data storage device.

As described above, in the present invention, since a single microprocessor simultaneously processes audio / video signals over an internet-based network, the present invention can process audio / video signals through the Internet to process video conferences and video chats in real time. In addition, the voice / video signal stored in the storage means can be transmitted to the flash memory, and the audio can be inserted into the electronic album, the video album and the pre-recorded video using the data, thereby producing an image.

In addition, when a single microprocessor is used for the audio / video signal, anyone can easily use it, and thus the user's convenience and ease of use have excellent advantages.

Claims (6)

In the microprocessor to configure a plurality of computers in a network, and to transmit audio and video signals to each computer, The main port is configured to be connected to a plurality of input means, and stores the audio / video signal input from the input means in the storage means 90 and controls the transmission and reception of the audio / video signals stored in the storage means 90. Means 110; Multi-point control means (120) for connecting the video conferencing system between the networks to multiple points; Audio / video signal integrated processing, characterized in that it comprises a USB (80) to compress the audio / video signal stored in the storage means 90 using the algorithm of the compression means 50 to transmit to the terminal 200. Microprocessor 2. The apparatus of claim 1, wherein the main control means (110) comprises: a defective pixel collector (20) for detecting whether the pixel data input from an external image sensor is damaged and automatically recovering the damaged pixel data; An image signal processor (30) for converting the image recovered by the defective pixel collector (20) into an image signal in YCbCr format; A memory management unit (10) for storing and storing the data converted in the YCbCr format in the image signal processor (30) to a storage means, and managing the data; It converts the voice signal input from the external microphone into a digital signal, compresses it to G.723.1, which is the voice standard of the Internet phone, and then stores it in the storage means 90. Negative codec 60; Compression means (50) for compressing an audio / video signal stored in the storage means (90); Microprocessor for audio / video signal integration processing further comprises a USB (80) for transmitting the compressed data through the compression means (50) to an external terminal (200). The image / video processor 30 of claim 2, wherein the image signal processor 30 corrects gamma correction according to characteristics output to a monitor, automatic exposure adjustment according to a change in light quantity, and automatic color correction according to a change in a light source. Microprocessor for signal integration processing. 2. The storage means (90) according to claim 1, wherein the storage means (90) includes first storage means (91) for managing an initialization program and an operating system for operating the system, and second storage means for storing audio / video signals input from various input means. (92) further comprising: a microprocessor for audio / video signal integrated processing. 2. A microprocessor according to claim 1, wherein the compression means (50) is G. 723.1. 2. The microprocessor according to claim 1, wherein the main control means (110) is a microprocessor composed of VoIP Voice over IP Dual Mode One Chip (DMC).