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Method-and-apparatus-for-displaying-images

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Method and apparatus for displaying images

Details

Inventors: Ouchiyama, Motoki; Yamashita, Hiroshi; Irie, Motosuke; Suzuki, Satoru;
Assignee: Sony Corporation (Tokyo, JP)
Primary Examiner: Lee; Michael
Assistant Examiner:
Attorney, Agent or Firm: Maioli; Jay H.

To provide a method and device for picture display capable of performing suitable picture display corresponding to various video signals. Kind of an input video signal S1 is determined based on prestored characteristic information on video signals, and the input video signal S1 is displayed in picture according to the characteristic information based on the above determined result, so that a suitable displayed picture can be obtained corresponding to the input video signal 1.

DETAILED DESCRIPTION What is claimed is: 1.
A method for picture display, comprising: a first step of determining kind of an input video signal based on prestored characteristic information on video signals; and a second step of performing deflection control based on said determined result; and the method wherein the aspect ratio of said input video signal is maintained, and at least one direction of a display picture is displayed over the whole of one direction of the displayable region of a display means.
2.
The method for picture display according to claim 1, wherein said first step determines the aspect ratio of said input video signal based on said characteristic information.
3.
The method for picture display according to claim 2, wherein said characteristic information is the number of horizontal lines and horizontal synchronizing frequency of said input video signal.
4.
The method for picture display according to claim 3, further including: a third step of detecting the horizontal synchronizing frequency and vertical synchronizing frequency of said input video signal; and a fourth step of computing the number of lines from said detected horizontal synchronizing frequency and vertical synchronizing frequency; and said method wherein the aspect ratio of said input video signal is determined based on said computed number of lines, said detected horizontal synchronizing frequency and said prestored characteristic information.
5.
The method for picture display according to claim 2, further including: a fifth step of prestoring related data on a deflection parameter and a value relevant to a display size; a sixth step of storing a value relevant to the display size when at least one direction of the display picture is displayed over the whole of one direction of the displayable region of the display means with respect to video signals having plural aspect ratios; a seventh step of reading out a value relevant to said stored display size corresponding to said determined aspect ratio; and an eighth step of computing said stored relevant data and a deflection parameter based on said read-out data

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