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:
Jan. 07, 1997
Filed:
May. 02, 1995
Akira Nakamatsu, Kanagawa, JP;
Tomio Suzuki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An image data processing apparatus such as an image synthesizing apparatus that synthesizes an image produced by a computer in accordance with tables stored in pages. A picture data conversion circuit converts picture data of red, blue and green color signals or picture data of luminance and color difference signals to predetermined converted picture data. A page change circuit switches the page of the picture data conversion circuit on the basis of alpha data representing transparency of the color picture data. An image data processing apparatus generates virtual addresses based on predetermined reference addresses in an address space larger than the frame memory addresses for accessing a plurality of frame memories at a low-order bit of the virtual address by selecting and outputting the image data outputted from the plurality of frame memories on the basis of a high-order bit of the virtual address. A processing form of color signal or luminance signal and color difference signals are recorded to a mode register when storing the picture data in the picture memory. Output data of the picture memories are directly outputted, or are converted into color signals, corresponding to the contents of the mode register.