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Method for drawing time-sharing tendency chart and character generator

A trend chart and subtitle machine technology, applied in the field of subtitle machines and drawing time-sharing trend charts, can solve the problem that the drawing method cannot meet the real-time performance, and achieve the effect of high real-time performance and high definition

Inactive Publication Date: 2011-06-29
CHINA DIGITAL VIDEO BEIJING
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for drawing a time-sharing trend chart and a subtitle machine to solve the problem that the existing drawing method cannot meet real-time performance

Method used

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  • Method for drawing time-sharing tendency chart and character generator
  • Method for drawing time-sharing tendency chart and character generator
  • Method for drawing time-sharing tendency chart and character generator

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Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Aiming at the traditional drawing method of time-sharing trend chart, the present invention proposes a drawing method using a subtitle machine, which can meet the requirement of real-time change of graphics along with stock trading information during program broadcasting. The following will be described in detail through examples.

[0039] refer to figure 1 , is a schematic diagram of the time-sharing trend chart described in the embodiment of the present invention.

[0040] The time-sharing trend chart is drawn on a subtitle machine, and is a smooth curve drawn using the transaction data within a day. The abscissa indicates time, and the ordinate indicates price.

[0041] refer to figure 2 , is a flowchart of a method ...

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PUM

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Abstract

The invention provides a method for drawing a time-sharing tendency chart and a character generator, solving the problem that the conventional drawing method cannot meet the requirement on instantaneity. The method comprises the following steps: sampling discrete data by using the character generator; carrying out curve fitting on the sampled data by utilizing the character generator so as to draw the time-sharing tendency chart; and replacing a preset template primitive by the drawn time-sharing tendency chart so as to generate a graphic play primitive. The drawing completed by the character generator can be played together with subtitle, so the real time property of using the character generator to draw the chart is higher than that of computer drawing. Furthermore, for the graph drawn by the character generator, the definition of the graph displayed on a television picture is higher than that of the computer drawing.

Description

technical field [0001] The invention relates to the technical field of program production, in particular to a method for drawing a time-sharing trend chart and a subtitle machine. Background technique [0002] The time-sharing trend chart is also called the real-time trend chart. It is a technical graphic that displays the market transaction information on the coordinate chart with curves in real time. The horizontal axis of the coordinates is the opening time of the market, the upper part of the vertical axis is the stock price or index, and the lower part shows the trading volume. The time-sharing trend chart is the real-time data of live stock market transactions, and is the most microscopic stock market analysis technique. [0003] In stock information programs, the production and broadcasting method of the time-sharing trend chart is as follows: firstly, the time-sharing trend chart is drawn in the computer using drawing software, and then the VGA (Video Graphics Array...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262G06T11/00
Inventor WU DINGFANG
Owner CHINA DIGITAL VIDEO BEIJING
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