Television – Synchronization – Control of picture position
Patent
1996-10-30
1999-10-05
Lee, Michael H.
Television
Synchronization
Control of picture position
348569, 348177, 348555, 345132, 345121, H04N 504, H04N 550
Patent
active
059632666
ABSTRACT:
A display apparatus for displaying a representation of adjustment data for a video display in a multi-frequency video display apparatus includes circuitry for processing video signals having synchronization signals of various frequencies, circuitry for providing input adjustment data, a microcomputer receiving the adjustment data and controlling the video signal processing based on the adjustment data, a display connected with the video signal processing circuitry, on-screen display circuitry for displaying a representation of the adjustment data on the display, and circuitry for controlling the on-screen display so that the representation of the adjustment data is displayed at substantially the same position on the display across different frequency modes of the multi-frequency video display apparatus. Also, a method for displaying a representation of adjustment data for a video display in a multi-frequency video display apparatus, where the adjustment data is displayed at substantially the same position on a display screen includes the steps of detecting the frequency of the horizontal synchronizing signal of the input, detecting the raster position on the display screen, obtaining the position for the representation based on the position of the raster, and calculating the position of the representation, thereby displaying the representation of the adjustment data at substantially the same position on the display for different frequency modes of the multi-frequency video display apparatus.
REFERENCES:
patent: 4979738 (1990-12-01), Frederiksen
patent: 5136390 (1992-08-01), Inova et al.
patent: 5500654 (1996-03-01), Fujimoto
patent: 5555027 (1996-09-01), Takeuchi
patent: 5781185 (1998-07-01), Shin
Lee Michael H.
Maioli Jay H.
Sony Corporation
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