Static information storage and retrieval – Addressing – Multiple port access
Patent
1992-07-02
1994-04-12
LaRoche, Eugene R.
Static information storage and retrieval
Addressing
Multiple port access
365238, G11C 800
Patent
active
053032004
ABSTRACT:
A three dimensional memory enabling both pixel and bit slice data to be stored and retrieved through different ports. A memory circuit (30) is divided into a lower memory block (32a) and an upper memory block (32b). Each memory block is organized into 256 rows .times.16 groups (pixel planes) of eight columns (bit planes). Eight bits of pixel data are stored at a selected row and pixel plane of the upper or lower memory block, and sixteen bits of pixel data are stored at a selected row and bit plane of the upper or lower memory block. Address bits determine the location of pixel data and bit slice data. A bit plane port is used to access data in the bit slice format and another port is used to access data in the pixel format. Bit slice data input through the bit plane port and stored in the memory circuit can be read as pixel data through the pixel port, and vice versa. By enabling image data stored in the memory circuit to be accessed as either pixel or bit slice data, retrieval of the image data in either representation is achieved without the need for an external serial-to-parallel or parallel-to-serial converter, greatly enhancing the speed by which the data stored in one representation is retrieved in the other.
REFERENCES:
patent: 2942239 (1960-06-01), Eckert, Jr. et al.
patent: 4106109 (1978-08-01), Fassbender
patent: 4509043 (1985-04-01), Mossaides
patent: 4535439 (1985-08-01), Satoh et al.
patent: 4570236 (1986-02-01), Rebel et al.
patent: 4610004 (1986-09-01), Moller et al.
patent: 4623990 (1986-11-01), Allen et al.
patent: 4641282 (1987-02-01), Ounuma
patent: 4691295 (1987-09-01), Erwin
patent: 4720819 (1988-01-01), Pinkham
patent: 5157775 (1992-10-01), Sanger
Overman, Timothy L., et al., "Image Processing Architecture Development," Boeing Aerospace Company disclosure document, pp. 1-8.
Elrod Steven E.
Jensen John S.
LaRoche Eugene R.
The Boeing Company
Zarabian A.
LandOfFree
N-dimensional multi-port memory does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with N-dimensional multi-port memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and N-dimensional multi-port memory will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2104665