The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1996
Filed:
Feb. 21, 1995
Tsutomu Takamori, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A digital video switching apparatus is disclosed in which a 4:2:2 digital video signal and a 4:4:4 digital video signal supplied at input terminals are selected by switching by a matrix switcher unit in order to transmit the 4:2:2 digital video signal to a first signal processing unit and in order to transmit the 4:2:2 digital video signal to a second signal processing unit. The first signal processing unit converts the 4:4:4 digital video signal into the 4:2:2 digital video signal by signal processing, such as color correction. The second signal processing unit performs signal processing, such as mixing or wiping, on the 4:2:2 digital video signal and the 4:2:2 digital video signal directly supplied from the matrix switcher unit, in order to output the processed 4:2:2 digital video signal. The input terminals may be simultaneously employed as the input terminals for the 4:2:2 digital video signal and the input terminals for the 4:4:4 digital video signal, while there is no necessity of providing input terminals dedicated to the 4:4:4 digital video signal. On the other hand, a device for supplying the 4:2:2 digital video signal or a device for supplying the 4:4:4 digital video signal may be connected to the input terminals so that the 4:2:2 digital video signal and the 4:4:4 digital video signal will be arbitrarily switched and selected by the matrix switcher unit or otherwise employed in combination.