Modification of T.V. image performed using ram storing the image

Details Modification of T.V. image performed using ram storing the image Modification of T.V. image performed using ram storing the image

1978-06-05

1980-09-02

Wolff, John H.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358180, 358183, H04N 9535, H04N 322, H04N 522

Patent

active

042209650

ABSTRACT:
A complete analog color-T.V. signal is separated into a luminance component and a color component. Each component is digitalized and then written into an RAM sequentially using a first addressing schedule for the write-in. The information is then read-out using a different addressing schedule for the read-out. The thusly read out digitalized components are converted back into analog form and combined to form another complete analog color T.V. signal. This technique makes possible a variety of special effects, including horizontal and/or vertical image compression, the display of a half image and alongide it a mirror-symmetrical version thereof, the storage of four color T.V. images in a manner which is interleaved in both the x and y directions of the memory, and others.

REFERENCES:
patent: 4011401 (1977-03-01), Presti
patent: 4063280 (1977-12-01), Hattori et al.
patent: 4080626 (1978-03-01), Hurst et al.
patent: 4101930 (1978-07-01), Sanders et al.
patent: 4134128 (1979-01-01), Hurst
patent: 4163249 (1979-07-01), Michael et al.
"The Digital Video Effects (DVE) System," Patten: SMPTE Journal, Apr. 1978, vol. 87, pp. 214-218.

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