TWI243593B - Independent MPEG-2 hardware coding system with a VGA interface - Google Patents

Abstract

This invention relates to an independent MPEG-2 hardware encoding system with a VGA interface. The system integrates a central controller, a network function, a memory register, a media signal interface, and an independent MPEG-2 hardware encoding system. The independent MPEG-2 hardware encoding system possesses a computer VGA video interface that can transmit media data through a wireless interface or a cable interface. The system comprises an image input unit, an audio input unit, a media encoding-compressing output unit, a central controller, and a hardware network interface. The image input unit connects with the VGA image output of a PC (a desktop or a notebook) or the image port of the A/V output terminal of a media player (such as a DVD player). The audio input unit connects with the audio port of the A/V output terminal of a media player. The data from the media encoding-compressing output unit is temporarily saved in the buffer or the memory of the independent system. The central controller and the hardware network interface control the whole system including the setting/accessing of the data formation and the external network connection. The software of the system comprises a built-in OS with relative driving programs for the device, network protocols, and high-level application programs.

Description

1243593 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to an independent MρE (} _ 2 hardware coding system with a VGA interface, and particularly refers to a standard multimedia audio and video compression technology using MPEG-2 to achieve hardware In addition to providing general A / V terminal equipment interface, it also accepts VGA interface input from computer equipment, and provides independent and complete system functions. It does not need to be inserted into the computer system and has a VGA interface. Independent MPEG-2 hardware encoding system. [Previous technology] Traditional MPEG-2 hardware encoding system is mainly inserted into the PC slot by means of PCI interface card. It also only provides A / V terminal interface for audio and video equipment input. , The encoded video and audio data is temporarily stored on the hard disk or memory, the most complicated should depend on ^, after shouting and shouting into the Internet age postal system, the data is sent to the remote via wired / wireless LAN Decode and play. In another mode, you do n’t send these: shell material to the PC's scene card. After decoding by software or hardware, the video from the county is not displayed on the Monitor. From the above, it is known that the traditional The mpeg-2 hardware coding system must rely on the support of a PC and its surrounding hardware and software to process the encoded audio and video data effectively. Today ’s multimedia audio and video equipment is not only traditional TV, audio, karaoke. 〖In addition, computer equipment itself plays an important role in the field of multimedia, but its video output interface is VGA signal, which is not available in traditional MPEG-2 hardware coding system. ▲ It can be seen that the traditional MPEG_2 coding system still has many shortcomings, and it is not a good person, and it needs to be improved. In the second case, Yueguang Railway's various shortcomings derived from the above-mentioned conventional methods are urgently improved. "Creating VGA interface" and "Jing Xi years painstakingly and lonely, finally successfully developed the silk piece with an independent MPEG_2 hardware encoding system. [Content of the invention] 1243593 controller, network function, memory register, video signal interface and Computer VGA video interface is independent, first, to improve the lack of traditional MPEG-2 hardware coding system, and easy to maintain. The main thing is that the current video and audio computer equipment is completely unnecessary. Make any changes, or install any driver software, just connect the output signal interface to the relevant (: go to this-system, you can paste the integrated network function of this system, the signal is transmitted by wired / wireless network The mpEG_2 hardware encoding system with a VGA interface that achieves the above-mentioned object of the invention is mainly composed of four alpha knifes, including a video input device, a sound input device, a video encoding compression and output device, a central control unit, and a network. The physical interface φ; its image input device can be divided into computer image input (VGA) and A / V terminal (Composite) image input two interfaces, after the two input signals are pre-processed, respectively connected to the image decoder (Vide〇Dec〇der) processing, after color space conversion processing (Color Space Conversation), output to the audio and video encoding compression part for surface G-2 image compression processing; this sound effect input device only includes a guess terminal (c〇mp〇site ) The audio input interface is divided into left and right channels. After pre-processing and digital processing, it is output to the audio and video encoding and compression part for MPEG-1 audio ink reduction processing. The audio and video encoding compression and output | The system synchronizes the video and audio input signals, and then performs the above-mentioned MPEG standard compression processing. Finally, according to the settings, Video / Andio streams that conform to the MPEG standard are sent to the memory for temporary storage; the central controller is the side of the entire system. ㈣, miscellaneous settings and access; view memory body towel temporarily stored _. / 八 地 〇 streams' will be packaged and combined by the central controller according to the network protocol, and then these data will be transmitted by wired or wireless through the network physical interface. [Embodiment] ^ The present invention can provide a computer and a general audio and video playback device, which can easily upgrade the traditional wired projection or audio and video playback method, so that it can be transmitted wirelessly without the need to upgrade or upgrade the old projection playback device, while avoiding The wiring of traditional wired systems is not easy to trouble, and is conducive to system maintenance, and is not afraid of system lines being disconnected by external forces. Please refer to FIG. 1, which is a structural diagram of an application example of an independent MPEG-2 hardware encoding system with a VGA interface according to the present invention. The composition of the system includes the independent EG of the current day and month. Network interface: It is a standard receiving device 2 capable of decoding MPEG_2 data 1243593 with application software or hardware, and the two are connected by wireless transmission 3 of the IEEE 802 11 standard. Receives ## from computer 4 or video home appliances 5 through independent MPEG-2 hardware encoding system 1 and then transmits the signal to software or hardware standard receiving equipment for decoding MPEG-2 data through wireless transmission 3 of the IEEE 802.11 standard In 2, the standard receiving device 2 displays the signal on a display device such as a projector 6 or an LCD monitor 7 or a television 8 after receiving the signal. ”° Please refer to FIG. 2, which is a system architecture diagram of the present invention with a VGA interface independent MρEα2 hardware coding system, mainly including: an image input device 11, the image input device u has a computer image input (VGA) and A / V terminal (Composite) image input two interfaces, after the two input signals are pre-processed, they are respectively connected to the video decoder (Video Decoder) for processing, after color space conversion processing (c0〇r Space Conversation) , Output to the video encoding and compression device for ΜρΕ (} _ 2 image compression processing; establish a sound effect input device 12, the sound effect input device 12 includes a guess terminal (c0mp〇site) sound effect input interface, divided into two left and right channels The signal, after pre-processing and digital processing, is output to the audio and video encoding compression part for MPEG-1 audio compression processing; 7 an MPEG-2 video encoder π, the mpeg-2 video encoder synchronously receives the video input device 11 and The sound effects are input to the video and sound effects of the device 12, and the received images are based on the MPEG fresh pressure. Finally, the video / audio streams conforming to the standard of the slave industry are converged on the 14th line via the PCI. To the recorder, it ’s in the middle of the center. It ’s 15. The reward editing machine = :: Shed control, # material setting and access, its built-in PCI bridge 151 and network difficulty function 52, ρα bridge 151 can be accessed through PCI bus I4 is used to control and send data, while the network · c function is loose, you can add a tree / scale Ethereum entity as required · 16, Ke Youcai wire network function 'causes temporary storage in Jijian The video and sound signals can be combined by the central control network 15 according to the network protocol, and the data can be sent out by wired or wireless via the network physical interface circuit 16. Please refer to Figure 3 for the 3_VGA interface _Lipai is a block diagram of an image input device with hardware-like 1243593 system. Its input source can be computer 4 or general video appliances 5 (such as DVD player only). If it is computer 4, it can be connected to VGA input port Hi. If it is a normal video home appliance 5, you can connect the Vide0 output port of its a / v terminal to the input port 112 of the video input device. The analog RGB video signal input from the VGA port needs to go through RGB to Y / C conversion circuit in converts analog RGB video signals into analog luminance and color difference (YC) The ionization number passes through the image decoder 114 and is converted into a digital image signal that meets the input requirements of the mpeg encoder, and then sent to the MPEG encoder 13 for encoding. As for the NTSC / PAL composite video signal (eomposite vide) from the video appliance 5 〇signal), directly through the image decoder 114, which is converted into a digital image signal and sent to the MpEG encoder 13 for encoding. Please refer to Figure 4, which is an independent MPEG-2 hardware encoding system with a VGA interface according to the present invention. The block diagram of the "effect input device" includes an A / γ terminal (C0mp〇site) audio input interface 121 so that it can receive audio signals from the audio output port of the A / γ terminal of general video appliances. The sound effect signal will first adjust its input level, and equalize the volume (Equalizing) adjustment, etc., and then convert it to digital sound effect and output it, and then send it to the MpEG encoder 13 for encoding. See Figure 5 for a diagram of the functional architecture of an MPEG encoder with a VGA interface independent MPEG-2 hardware encoding system according to the present invention. After the video decoder and audio digital processor receive the video and audio signals respectively, The video signal is first analyzed and filtered, and then sent to the core for MPEG_2 video encoding, while the audio signal is sent directly to the core for audio encoding. Yang- 丨 or AC3's audio code is then temporarily stored in the external SDRAM memory after encoding In vivo, the combined compressed signals are arranged according to the settings to become MPeg_2 Program Stream (; PS;) / Tmiisport

Stream (TS) or Elementary Stream (ES) / Packetized Elementary Stream (PES), and then send PS / TS / ES / PES data to system memory or hard disk for storage through PCI interface, waiting for further processing and transmission. The MPEG video transmission data stream can be implemented by the central controller to execute the relevant quasi-flood agreement, encapsulated into a network packet (0acket), and sent by the wired / wireless Ethernet entity circuit using a standard communication protocol. The independent MPEG-2 hardware coding system with VGA interface provided by the present invention has the following advantages when compared with other conventional technologies: 1243593 L The traditional MPEG-2 hardware coding system only provides A / v terminal interface for The audio and video equipment's application surface is limited to general scenes; the audio equipment 'can't integrate the computer equipment that currently accounts for the majority of multimedia applications. The invention has a computer equipment standard VGA interface and also provides Α / γ terminal interfaces.' Can provide more comprehensive application services. 2. The present invention provides an independent MPEG_2 hardware encoding system, which is a system that integrates a central controller, network functions, memory registers, video signal interface and computer VGA image interface. The current video and audio computer equipment does not require any Change, or install any driver software, just connect it to the signal interface with the relevant Cable to the system—the integrated network function of this system can be used to transmit the signal by wired / wireless network without using it at all. Relying on the support of a PC and its surrounding hardware and software, the encoded audiovisual data can be effectively processed and applied. The above eight detailed descriptions are specific descriptions of the feasible embodiments of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention shall include Within the scope of the patent in this case. In summary, this case is not only innovative in technical thinking, but also has the above-mentioned effects that are not achieved by conventional methods. I urge your office to approve this patent application for invention to encourage invention, and it is a matter of virtue. [Schematic description]

Please refer to the following detailed description of the present invention and the accompanying drawings to further understand the technical content and the purpose and effect of the present invention. The related drawings are: X Figure-This is the G_2 hardware coding system of the independent hall with VGA interface of the present invention. Application example architecture diagram; η. Figure 2 is a system architecture diagram of the present invention with a VGA interface independent hardware encoding system; Fig. 3 is an invention with a VGA interface and an independent negotiation hardware encoding system

Figure 4 shows the internal block diagram of the sound input device of the mpeg-2 hardware encoding system equipped with a VGA interface in the present invention; and Figure 5 shows the independent MPEG-2 hardware coding provided with a VGA interface in the present invention. Internal block diagram of the system's audio and video encoding compression and output sections. [Main representative symbols] 1 MPEG-2 hardware encoding system 11 video input 111 VGA interface 112 A / V terminal interface 113 conversion circuit 114 video decoder 12 sound effect input device 121 A / V terminal interface 13 MPEG-2 encoder 14 PCI Bus 15 Central controller 151 PCI bridge 152 Network MAC 16 Network physical circuit 2 Standard receiving interface 3 Wireless transmission 4 Computer 5 Video home appliances 6 Projector 7 LCD monitor 8 TV

Claims (1)

Scope of patent application: ___ ^ 一 —f with VGA interface alone AMPEG_2 hardware coding system, including: p image input 4 set, it can receive image signals, the signals are decoded by the image decoder, and then converted by color U Process' final output to the video encoding and compression device for mPEG_2 image compression processing; / said effect input 4 set 'it can receive audio shouts, and the signal is pre-processed and digitally processed' and output to the video encoding and compression part # ΜΡΕ ( Μ audio compression processing; Yi Qingdan G_2 video editing, which is synchronously connected from the video input device and audio input f to set the image and sound effect money, and the received video-like sound effect Wei is subjected to MPEG standard compression processing. Finally, the video and sound effect signals that meet the Puyang standard are sent to the memory temporarily through the ρα bus; The controller The central controller is mainly responsible for the entire system related control, data setting and = fetching, so that the memory The temporarily stored image and sound signals can be packaged and combined by the central controller according to the network protocol, and then the data can be transmitted through the network dragon interface and the silk thread method. The base VGA mentioned in Item 1 is based on the MPEG_2 hardware coding system = 'where the video input device has computer video input (VGA) and A / v terminal (composi㈣ shirt image input two kinds of media Φ, double-sided bile Before the test, the processing will depend on the video decoder. According to the second patent application, the independent MPEG_2 hardware encoding system with VGA interface is used. If the video input device receives video signals from the computer, it will The analog RGB video signal input from the VGA port is first converted to an analog luminance and color difference (YC) separation signal through an RGB t0Y / c conversion circuit, and then converted to an MPEG-compliant video signal through an image decoder. The encoder inputs the required digital image signal, and then sends it to] ^ 1 > £ (} encoder for encoding. As described in the second patent application, the independent MPEG_2 hardware encoding system with VGA interface is used, and if the image input device is receiving NTSC / PAL composite video from video appliances 1243593 After it is converted into a digital image signal, it is sent to the MpEG signal ’, which passes through the image decoder and is encoded. 5. = Application, the independent MPEG_2 hardware with VGA interface described in item 1 of the patent scope makes it divided into the left side. The audio input device includes the A / v terminal audio input interface, "two signals on the right channel. 6 · The independent mpeg_2 hardware system with VGA interface, as described in item i of Shenjing's patent, where the audio input device will first adjust the input scale of the received signal: equalize the volume and so on. Pre-processing 7. As described in item 1 of the scope of patent application, it has a VGA interface independent MPEG_2 hardware coding system, in which the central controller has a built-in PCI bridge and network MAC function, and the ρα bridge can pass through the PCI bus. For controlling and sending data, and the network] ^ 八 (: function, you can add wired / wireless Ethernet physical circuit as needed to have wired or wireless network function. 8 · If the scope of patent application is the first The independent MPEG_2 hardware encoding system with VGA interface described in the above item, wherein when the MPEG-2 encoder receives the image and sound effect signals, it will analyze and filter the image signal before sending it to the core for MPEG-2 image encoding. The sound signal is Transfer to the core for MPEG-1 or AC3 audio encoding, then temporarily store the encoded signal in the external SDRAM memory, and then arrange and combine the compressed signals according to the settings to become MPEG-2 Program Stream (PS) / Transport Stream ( TS) or Elementary Stream (ES) / Packetized Elementary Stream (PES), and then send PS / TS / ES / PES data to system memory or hard disk for storage via PCI interface, waiting for further processing and transmission. 12