A video data transmission method, device and system
A technology of video data transmission and video data, which is applied in the computer field, can solve the problem that the transmission capacity of a single frequency point is difficult to meet, and achieve the effect of meeting the requirements of data transmission rate and improving utilization rate
Active Publication Date: 2021-08-03
GUANGZHOU DIGITAL MEDIA GRP CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to meet the two-way and broadband cable TV network, C-Docsis standard is gradually commercialized by domestic cable TV operators, C-Docsis can be modulated by 64-QAM or 256-QAM, and the 256-QAM modulation method is theoretically available under 8MHz channel bandwidth. The transmission rate is 51Mbps, however, in the 256-QAM modulation mode, its actual effective transmission rate is about 80%, that is, its actual effective transmission rate is only 40Mbps
At present, the transmission bit rate of 4K ultra-high-definition TV programs has reached 40Mbps to 60Mbps. Obviously, the transmission capacity of a single frequency point is difficult to meet the requirements of delivering ultra-high-definition video data.
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
[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0046] see figure 1 , which is a schematic flowchart of the video data transmission method provided in the first embodiment of the present invention. A video data transmission method provided by an embodiment of the present invention is applied to a demodulation device, comprising steps:
[0047] S11. Obtain a first acquisition request sent by the terminal for acquiring the first video data; the first acquisition request includes the IP address of the source serve...
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 present invention discloses a video data transmission method, device and system, wherein the method includes: acquiring a first acquisition request sent by a terminal; the first acquisition request includes the IP address of the source server; Find the corresponding first downlink frequency point combination in the configuration file; obtain the modulation data packet sent by the modulation device through each downlink frequency point in the first downlink frequency point combination; the modulation data packet is the source obtained by the modulation device When the second video data is sent by the end server, the second video data is distributed to each downlink frequency point in the second downlink frequency point combination corresponding to the IP address of the source end server in the preset second configuration file for modulation and downlink the second configuration file is consistent with the first configuration file; demodulate the obtained modulated data packet, and send the demodulated data packet to the terminal. The invention can improve the video data transmission rate and can meet the data transmission requirements of ultra-high-definition television programs.
Description
technical field [0001] The invention relates to the field of computer technology, in particular to a video data transmission method, device and system. Background technique [0002] With the gradual improvement of people's living standards, people have higher requirements for the definition of video. Ultra-high-definition televisions are more and more sought after by people because of their ultra-high-definition resolution and more delicate picture quality than existing high-definition televisions. At present, the transmission bit rate of 4K ultra-high-definition TV programs can reach 40Mbps to 60Mbps. In the future, with the development of technology and the popularization and application of ultra-high-definition television, 8K ultra-high-definition television or television with higher definition will gradually be applied, namely In the future, the transmission bit rate of UHD TV will be higher and higher, which indicates that there will be higher requirements for the data...
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 Patents(China)
IPC IPC(8): H04N21/462H04N21/458H04N21/438H04N21/262H04N21/2383
CPCH04N21/2383H04N21/262H04N21/4382H04N21/4586H04N21/4622
Inventor 徐力恒陈昌茂辛晓玫
Owner GUANGZHOU DIGITAL MEDIA GRP CO LTD