32 results about "Digital Video Interactive" patented technology

The invention relates to an image mosaic processor on the basis of an FPGA (Field Programmable Gata Array), which is characterized by comprising a set of DVI (Digital Video Interactive) digital decoding circuit, a set of FPGA digital video processing circuit and a set of output interface circuit, wherein an external digital signal is connected with the DVI digital decoding circuit; a digital video signal with the minimum transformation differential signal form is subjected to decoding processing; an obtained video pixel information flow is directly fed into the FPGA digital video processing circuit; after being processed by an image processing algorithm, the signal is subjected to encoding processing to obtain the digital video signal of the minimum differential signal; and the digital video signal of the minimum differential signal is output to a mosaic wall display through the output interface circuit. The invention also provides an image mosaic method on the basis of the system. The image mosaic processor and the image mosaic method have the advantages that the image mosaic processor and the image mosaic method are not limited by the bandwidth of a PCI (Peripheral Component Interconnect) bus or the aspects of acquiring and processing capabilities.

A system for increasing user interaction with a digital video library. In response to receiving a question by an interactive digital video library server from a user regarding course material being presented from a digital video library, it is determined whether the question is in an audio format. In response to determining that the question is in an audio format, the question is converted into a text format. The course material is searched in a time sliced video index database for an answer to the question using keywords found in the text format of the question. Also, other course materials similar to the course material are searched in a video knowledge base. A weight is assigned to each search result hit found in the course material and the other course materials. Search result hits are outputted in a priority order according to assigned weight and user preference.

An apparatus is provided to aid in teaching elementary writing skills to individuals. In the preferred embodiment, a dry-erase workbook, dry-erase markers and an interactive digital video disk are used which when played depicts the creation of exemplar characters. These are then copied into the workbook by the learner.

The invention relates to a method for processing a wireless network transmission RGB signal of a DLP (digital light processing) multi-screen splicing display wall. The method comprises the following steps: a RGB signal end computer automatically runs a client; the client captures a PC display image in real time to code instantaneously; the client encrypts and packages the coded PC display image after a command of a central control end is received, and sends the coded PC display image through a WLAN (wireless local area network); an embedded host computer receives data through the WLAN; a decoder decodes the received data, and converts the data into DVI (digital video interactive) signal output after the command of the central control end is received; the DVI signal output is accessed to amulti-screen splicing processor; the multi-screen splicing processor processes the signal after the command of the central control end is received, including amplifying, reducing an moving; and the DLP splicing display wall displays the signal after the command of the central control end is received. Compared with the prior art, the method has the advantages of low cost, capability of wireless extension of the number of RGB signal sources and the like, and is easy to construct.

A TV receiver such as a set-top box has an Open Cable Application Platform (OCAP) programming interface that communicates with interactive digital video applications such as pay-per-view applications to enable a viewer to communicate requests, purchase orders, and the like to a head end. A cable card provides both decryption of incoming video from the head end as well as translation functionality that transforms standardized messages into a proprietary protocol recognizable to the head end. The OCAP has an API that interfaces with the application and that directs standardized messages from the application to the standardized interface of the removable cable card ensuring common reliance on the translation functionality built in to the cable card.

The invention discloses a target motion characteristic image simulating and outputting system, relates to the field of optical measurement devices and aims at solving the problem that the current devices are incapable of providing simulation of real targets under normal and abnormal motion states. According to the target motion characteristic image simulating and outputting system, a control module is used for starting the system, setting parameters and detecting hardware; a communication module is used for transmitting instructions of the control module to a target motion characteristic image simulating module; a data transmission module is used for receiving and feeding virtual target position and speed information detected by an optical detection device as well as transmitting the virtual target position and speed information to the target motion characteristic image simulating module; the target motion characteristic image simulating module is used for receiving the instructions of the control module and the target position and speed information of the optical detection device and processing the information to form DVI (Digital Video Interactive) images; and a DVI-camera Link image conversion module is used for converting the DVI images to standard Camera Link simulation images and transmitting the standard Camera Link simulation images to the optical detection device. The target motion characteristic image simulating and outputting system provides simulation of real targets under normal and abnormal motion states and is high in stability.

The invention discloses a multi-format signal conversion device comprising a signal input module, a signal processing module and a signal output module, wherein the signal input module is used for collecting an external input signal, the signal processing module is connected with the signal input module and used for video signal format conversion processing of the external input signal, the signal output module is connected with the signal processing module and used for transmitting a signal which is processed by video signal format conversion to a signal transmission media. The multi- format signal conversion device supports multi-format signal input, and an analog video graphics array (VGA) signal, a composite video broadcast (CVBS) signal, a YPbPr signal, an S-video signal, a digital video interactive (DVI) signal and a high definition multimedia interface (HDMI) signal are compatible. Compatibility of signal input is good, and the multi- format signal conversion device and the display equipment are convenient for users to use.

The invention discloses a multi-way mixed video processing device based on a PC (Personal Computer). The multi-way mixed video processing device comprises an FPGA (Field Programmable Gate Array) module, an ASIC (Application Specific Integrated Circuit) module and a DVI (Digital Video Interactive) output module, wherein the FPGA module is used for transmitting a desk top video data stream to the ASIC module to scale; the ASIC module is used for returning the scaled desk video data stream to the FPGA module; and the FPGA module is used for scaling a video signal source data stream, then overlapping the scaled video signal source data steam with the returned desk video data stream, and finally transmitting the overlapped data stream to the DVI output module to accept DVI encoding. According to the multi-way mixed video processing device based on the PC, the FPGA logic implementation technology serves as the basis, a plurality of logic circuits of which the functions can just be implemented by special chips are integrated, and therefore, the multi-way mixed video can be scaled and overlapped; the function of conventional display card can be replaced during processing the multi-way mixed video; and the FPGA logic implementation technology is adopted, which is easily implemented by the hardware; and the multi-way mixed video processing device based on the PC is low in cost.

The invention relates to an automatic identification system and a method of a handwriting Chinese character. The system comprises an EMB-4650 main board, wherein expanded sub-interfaces of the EMB-4650 main board are a low voltage differential signaling (LVDS) interface, a digital video interactive (DVI) interface, a universal serial bus (USB) interface and a computer-output microfilm (COM) interface which are respectively connected with an AUO display screen, a DVI-LVDS signal converting board, a USB controller and a global system for mobile communication (GSM) module. The DVI-LVDS signal converting board is connected with another AUO display screen, and the USB controller is connected with a touch screen. The identification method comprises the steps of (1) inputting handwriting Chinese character data, (2) preprocessing the handwriting Chinese character data, (3) extracting shape features of the handwriting Chinese character data, and (4) identifying the handwriting Chinese character data. By means of the automatic identification system and the method of the handwriting Chinese character, a novel polar coordinate feature recognition method with font centroid as a reference point. Users can record, store and send important information in real time by utilizing a handwriting mode, thereby achieving the matching between handwriting Chinese characters and handwriting Chinese characters. The system integrates high confidentiality and high-speed transmission and is suitable for intelligence agents to collect and screen the important information.

This invention relates to one interact digital visual frequency interface data signal process device, which comprises the following parts: receiving vertical and level synchronous signals and testing work status LPF through above digital visual system DVI interface; turning the signals and keeping original output cathode correction part according to LPF output work status information; getting cathode level and vertical signals and permitting data DE signals relate DE signals to generate level and vertical synchronous signals.

The invention discloses a test system for testing a graphic processing module. The test system comprises a computer and a signal adapter box, wherein the computer internally comprises test software, an Ethernet communication module and a video acquisition card; the signal adapter box internally comprises a signal conversion module, a main control module and the tested graphic processing module; the test software is used for generating various plotting instructions and controlling the Ethernet communication module to transmit the plotting instructions to the signal adapter box; through DVI (Digital Video Interactive) images read by the video acquisition card, an evaluation report is obtained for the tested graphic processing module; the main control module is used for analyzing the received plotting instructions and inputting the plotting instructions to the tested graphic processing module; the tested graphic processing module is used for making a response to the plotting instructions and generating corresponding VGA (Video Graphics Array) images; and the signal adapter box is used for converting the VGA images output by the tested graphic processing module into DVI images and outputting the DVI images to the computer. The test system realizes the testing of the plotting capability and a video transmission function of the tested graphic processing module.

Disclosed is an image display device for generating input image signals and a method thereof. The image display device includes an outer device connector connected with a digital video interactive (DVI) cable or a high-definition multimedia interface (HDMI) cable, an image signal separator separating an image signal received through the cable into image data, vertical/horizontal synchronizing signals, a data enable (DE) signal, and a pixel clock signal, an image signal processor processing a signal of the image data, and a controller determining the standard of the input image signal and controlling the image signal processor to process the image signal in a mode corresponding to the determined standard. Thus, the input image signal can be processed depending on the determined result after determining the standard of the input image signal.

The invention relates to an intelligent display system, an intelligent display and a method for transmitting signals. The intelligent display system comprises a display and an intelligent device which are connected through a digital video interactive (DVI) port. The intelligent device transmits digital video signals to the display through the DVI port, further transmits left sound track voice frequency signals and right sound track voice frequency signals to the display through a first group of two pins in idle pins which are located on the DVI port and are not utilized in transmission of the digital video signals, and is communicated with the display through a second group of two pins in idle pins which are located on the DVI port and are not utilized in transmission of the digital video signals. The system, the display and the method increase a voice frequency transmission channel and a channel for communication between devices by redefining the original DVI port under the condition that the newly added channels are compatible with the original digital video signal transmission channel. Only one DVI connection wire is needed to transmit digital video signals, voice frequency signals and communication signals simultaneously, using cost of display products is reduced, and the display can be more conveniently connected with the intelligent device.

The invention provides a single- fiber multi-channel video transmission receiver which comprises a DVI/HDMI (Digital Video Interactive/High-Definition Multimedia Interface)-to-optical-fiber module forreading multi-channel DVI (Digital Video Interactive) or HDMI (High-Definition Multimedia Interface) video data and converting the multi-channel DVI or HDMI video data into serial data; an optical fiber-to-DVI/HDMI module used for receiving the serial data and restoring the serial data into multiple paths of DVI or HDMI video data; a video playing controller used for processing the multiple pathsof DVI or HDMI video data and controlling the display of the display screen; wherein the DVI/HDMI-to-optical fiber module is sequentially connected with the optical fiber-to-DVI/HDMI module and the video playing controller. According to the technical scheme provided by the invention, the problem of long-distance single-fiber multi-input video data transmission is solved through the DVI/HDMI to optical fiber module and the optical fiber to DVI/HDMI module.

The invention belongs to the technical field of visualized information systems, and specifically discloses a high definition 3D recorded live system matched with a Leonardo's robot. The high definition 3D recorded live system comprises input interfaces correspondingly connected with the Leonardo's robot, and further comprises an input source signal module, an input source processing module and a video playing module, wherein the input source processing module processes the input source signal module, after that, synthesizes an original input source signal into a 3D video source and a high definition and 3D video source through decoding and coding processing; and the 3D video source is played through the video playing module. The recorded live system particularly creates a novel rebroadcast device for the Leonardo's robot, which greatly enhances the stability and saves space; a central integrated control room section is canceled, since an operating room is direct to a meeting place, the live system has double DVI (Digital Video Interactive) interfaces and can perfectly receive the 3D video source, show the original image quality in high definition without frame relay, enable people who need to watch to view a true vision of a surgeon, and can run for a long time and keep a better stabilizing effect.