High-definition optical transceiver and multimedia video digital signal processing method
A digital signal and multimedia technology, applied in the direction of TV, color TV, image communication, etc., can solve the problems of limiting the application range of products, unable to achieve compatible transmission of resolution images, and unable to dynamically adjust the transmission bandwidth range in real time, so as to achieve compatible transmission. Effect
Inactive Publication Date: 2012-10-17
北京蛙视通信技术股份有限公司 +1
View PDF6 Cites 22 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The transmission bandwidth occupied by images with a resolution of 1024×76860Hz is about 65Mbps×20=1.3Gbps, which belongs to the MED range, and the transmission bandwidth occupied by images with a full HD resolution of 1920×108060Hz is about 148.5Mbps×20=2.97Gbps, which belongs to HIGH range, while the serdes module can only select one transmission bandwidth range to work, and the transmission bandwidth range cannot be adjusted dynamically in real time. If the HIGH range is used to transmit images with a full HD resolution of 1920×108060Hz, the HIGH range cannot be used to transmit images with a resolution of For images of 1024×76860Hz, within the same data transmission bandwidth range set by the serdes module, compatible transmission of images with two resolutions of 1920×108060Hz and 1024×76860Hz cannot be achieved, thus limiting the application range of the product
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0062] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0063] The high-definition optical transceiver provided by the present invention includes a transmitter that converts a multimedia video digital signal into serial media data and sends it to the opposite receiver, and a transmitter that receives serial media data from the opposite transmitter and converts it into a multimedia video digital signal The receiver adopts FPGA scheme / SERDES scheme.
[0064] Such as figure 1 As shown, the transmitter includes a decoding unit 11, a first clock processing unit 12, a frame code generation and information adding unit 13, and a parallel-to-serial conversion unit 14; wherein the decoding unit 11 is used to perform processing on the multimedia video digital signal to be sent Decode to obtain video line synchroniza...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-definition optical transceiver and a multimedia video digital signal processing method. A pixel clock of a multimedia video digital signal is adjusted to a frequency-doubling clock within a clock range corresponding to efficient bandwidth of a parallel and series conversion unit of a transmitter through a first clock processing unit in the transmitter, compatible transmission of the multimedia video digital signal is realized, and meanwhile, the first clock processing unit generates a pixel clock counting value so that an opposite-end receiver can perform frequency division on the frequency-doubling clock and the pixel clock of the multimedia video digital signal is returned; and a second clock processing unit in the receiver acquires the pixel clock counting value, the frequency-doubling clock adopted when an opposite-end transmitter transmits serial medial data is known from the pixel clock counting value, corresponding frequency division is performed, and the multimedia video digital signal is correctly returned. The compatible transmission of the multimedia video digital signals of images with different resolution ratios is realized by the high-definition optical transceiver.
Description
Technical field [0001] The invention relates to an optical transmission device, in particular to a high-definition optical transceiver for remote multimedia video digital signal transmission through optical fibers and a multimedia video digital signal processing method used on the high-definition optical transceiver. Background technique [0002] Currently, high-definition video has been increasingly applied to the field of security surveillance. Compared with standard-definition video, high-definition video has obvious advantages in terms of picture quality and color reproduction. The high-definition optical transceiver adopts non-compression and other technologies to realize the transmission of digital high-definition video, audio, data and other services. The high-definition optical transceiver can output various high-definition video signal sources such as computers, high-definition cameras, Blu-ray players, etc. to various resolutions of HDMI (High Definition Multimedia Inte...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/20H04N5/38H04N5/44
Inventor 王景峰
Owner 北京蛙视通信技术股份有限公司