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A method and system for setting the initial value of TV line

A technology of starting value and line starting, which is applied in the field of setting the starting value of TV line and field, and can solve the problems of incomplete image display and inability to display.

Active Publication Date: 2020-01-17
LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when switching to another TV station, since the modified line start value is a global setting, which is valid for all channels, the content on the far right of the original screen of other TV stations cannot be displayed, and the image screen display is incomplete

Method used

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  • A method and system for setting the initial value of TV line
  • A method and system for setting the initial value of TV line
  • A method and system for setting the initial value of TV line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] image 3 It is a flow chart of Embodiment 1 of a method for setting the initial value of the TV line field of the present invention. Embodiment 1 takes setting the initial value of the TV line as an example for illustration, and the method includes:

[0071] Step 301: Store a display attribute table set separately for each TV channel, and the display attribute table stores the original row start value and the original field start value of the corresponding TV channel.

[0072] Before the TV leaves the factory, technicians calibrate the line start value and field start value according to the special pictures with dimensions, to ensure that the program image center of the TV channel coincides with the center of the display screen, and the marked line start value and the field start value are respectively stored in the display attribute table of each TV channel as the original row start value and the original field start value.

[0073] In general, the original row start ...

Embodiment 2

[0114] Figure 4 It is a flow chart of Embodiment 2 of a method for setting the initial value of the TV field of the present invention. Embodiment 1 is illustrated by setting the initial value of the TV field as an example. The initial value of the field is similar to the initial value of the line. Here only The difference is described in detail, and other descriptions refer to Embodiment 1, which will not be repeated here. The method includes:

[0115] Step 401: Store a display attribute table set separately for each TV channel, and the display attribute table stores the original row start value and the original field start value of the corresponding TV channel.

[0116] Step 402: Receive the field setting instruction of the currently displayed TV channel sent by the user, the field setting instruction carrying the change amount of the initial value of the field.

[0117] The field setting instruction is a field setting instruction only for the currently displayed TV channel...

Embodiment 3

[0155] Figure 5 It is a flow chart of the third embodiment of the method for setting the initial value of the TV line and field of the present invention. Both the initial value of the line and the initial value of the field of the TV channel described in the third embodiment need to be set, and the method includes:

[0156] Step 501: Store a display attribute table set separately for each TV channel. The display attribute table stores the original row start value and the original field start value of the corresponding TV channel.

[0157] Step 501 is similar to Embodiment 1, refer to the description of Embodiment 1, and details are not repeated here.

[0158] Step 502: Obtain the original row start value and original field start value corresponding to the TV channel from the display attribute table of the TV channel.

[0159] Step 503: Display the program of the TV channel by using the original row start value and the original field start value.

[0160] When the user tunes...

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Abstract

The invention provides a method and a system for setting the row and column initial values of a television. Each television channel has a display attribute table, and the display attribute table only has the original row initial value and the original column initial value of the corresponding television channel. A row setting instruction or a column setting instruction of a user can only change the program image center of the currently displayed television channel, and the original row initial value (or the original column initial value) in the display attribute table of the currently displayed television channel can be updated only with a new row initial value (or a new column initial value). Namely, the method for users to set the row and column initial values of a television is only applicable to the currently displayed television channel, has no affect on the row and column initial values in the display attribute tables of the other television channels, does not change the image centers of the other television channels, and has no affect on the broadcasted programs of the other channels.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method and system for setting the initial value of a TV line. Background technique [0002] TV line scanning is derived from the technology of CRT (Cathode Ray Tube, cathode ray tube) TV. By supplying the required sawtooth current to the line field coil, the electron beam of the picture tube is controlled from left to right in the horizontal direction and in the vertical direction. Regular movement from top to bottom forms a grating. The scanning in the horizontal direction is called line scanning, and the scanning in the vertical direction is called field scanning, collectively called "line and field scanning". [0003] In the TV system, in order to reproduce the image correctly, the TV signal receiving end (display) and the sending end (camera) are required to realize line and field synchronous scanning. Line (horizontal) synchronization: control the electron beam to ret...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/482H04N21/41
Inventor 杜彦哲
Owner LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD