Format converter

Details Format converter Format converter

1997-12-18

2000-08-01

Peng, John K.

Television

Format conversion

348441, 348445, 348552, 348554, 345132, 345154, H04N 701, H04N 327, H04N 546, H03L 700

Patent

active

060974370

ABSTRACT:
A format converter includes: a microcomputer for receiving horizontal and vertical synchronizing signals from a host, determining a video mode, and generating data that indicates the number of dots per a period of a horizontal output signal; a W-PLL and time generator for receiving the data from the microcomputer, and generating a write clock signal; an R-PLL and time generator for receiving the data and the horizontal synchronizing signal respectively generated by the microcomputer and the host, and generating a read clock signal; an AD converting section for sampling an analog picture signal received from the host according to the write clock signal of the W-PLL and time generator, and converting it to a digital picture signal; and a format converting section for storing the picture signal received from the AD converter according to the period of the write clock signal of the W-PLL and time generator, and converting the format of the stored picture signal according to the read clock signal received from the R-PLL and time generator.

REFERENCES:
patent: 5585864 (1996-12-01), Takeuchi
patent: 5677741 (1997-10-01), Yui
patent: 5812210 (1998-09-01), Arai et al.
patent: 5838381 (1998-11-01), Kasahara et al.
patent: 5870073 (1999-02-01), Kitou et al.
patent: 5874937 (1999-02-01), Kesatoshi
patent: 5912711 (1999-06-01), Lin et al.
patent: 5933196 (1999-08-01), Hatano

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