Multimedia data synchronization output system and method
A multimedia data and output system technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems of display asynchrony, large frequency deviation, and inability to ensure the same video frame is received, so as to ensure synchronization Effect
Active Publication Date: 2022-07-01
HANGZHOU HIKVISION DIGITAL TECH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, it has been found in practice that in the existing synchronous output scheme, when running for a long time, the frequency deviation between the video output units in the same synchronous output group will become larger and larger, which will eventually cause the display to be out of sync; in addition, in the same synchronous output Each video output unit of the group cannot guarantee that it receives the same video frame in the same output cycle, which may cause the display to be out of sync
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
[0028] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.
[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.
[0030] In order for those skilled in the art to be...
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 application provides a multimedia data synchronization output system and method. The system includes: a multimedia data input unit, a multimedia data output unit, and a synchronization management group; wherein, the synchronization management group includes a reference clock management unit, which is used for the same synchronization output group. Each multimedia data output unit provides the same clock source; a synchronous output calibration unit is used to configure the same output parameters for each multimedia data output unit, and control each multimedia data output unit to output multimedia data at the same output start time; synchronous processing The control unit is used to control each multimedia output unit to receive multimedia data and corresponding control data sent by the multimedia data input unit at the same reception time; the synchronous transmission control unit is used to feed back the output time of each multimedia data output unit to the multimedia data input unit unit. The method can ensure the synchronization of multimedia data output in the multimedia data synchronization output system.
Description
technical field [0001] The present application relates to video surveillance technology, and in particular, to a system and method for synchronously outputting multimedia data. Background technique [0002] Synchronous output usually includes video matrix switching synchronous output, video splicing roaming synchronous output, etc. Among them, the synchronous output of video matrix switching usually means that the video data of the same video input terminal is switched to multiple video output terminals at the same time for display, and the content of each video output terminal is synchronized; the synchronous output of video splicing and roaming usually refers to a video input image according to a preset The parameters are cut into multiple video blocks, which are displayed on each video output end respectively. The images displayed on each display screen of the entire splicing screen at the same time belong to the same frame of the video input image, and there is no image ...
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): H04N21/43
CPCH04N21/4302H04N21/4305
Inventor 周建
Owner HANGZHOU HIKVISION DIGITAL TECH