Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Patent
1998-10-29
2000-12-05
Moise, Emmanuel L.
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
714 5, 714 18, 714784, 714785, 360 48, 365 51, 36518901, 341 94, G11C 2900, H03M 1300
Patent
active
061580406
ABSTRACT:
A digital-versatile disk (DVD) playback-controller integrated circuit (IC) writes data to a block in an embedded DRAM memory. The memory block has rows and columns. Data read from a DVD optical disk is read in row order. Rather than write the DVD data across the rows in the memory block, the DVD data is accumulated into 16-byte words, and successive 16-byte words are written down a column in the memory block. Each row from the DVD disk is written to a 16-byte-wide column in the memory block. The embedded DRAM has a wide 16-byte interface, so all 16 bytes in a word are written during a single memory-access cycle. All the bytes in the memory block must be read in column-order for column-syndrome generation. Since the row-column ordering is reversed, the column-syndrome generator reads bytes across the memory-block rows. Most of these fetches are DRAM page hits, so access speed is improved for column-syndrome generation. Row syndromes can be generated on-the-fly as the data is written from the DVD disk to the memory buffer. Row syndrome generation thus requires no memory access cycles. The final accumulated syndromes are output to an error corrector that detects, locates, and corrects any errors in the columns.
REFERENCES:
patent: 3745526 (1973-07-01), Hong et al.
patent: 4564945 (1986-01-01), Glover et al.
patent: 5027357 (1991-06-01), Yu et al.
patent: 5220569 (1993-06-01), Hartness
patent: 5517509 (1996-05-01), Yoneda
patent: 5535327 (1996-07-01), Verinsky et al.
patent: 5559983 (1996-09-01), Masood
patent: 5581715 (1996-12-01), Verinsky et al.
patent: 5650955 (1997-07-01), Puar et al.
"DVD Demystified", Jim Taylor, McGraw-Hill, 1997, pp. 120-136.
Auvinen Stuart T.
Moise Emmanuel L.
NeoMagic Corp.
LandOfFree
Rotated data-aligmnent in wade embedded DRAM for page-mode colum does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotated data-aligmnent in wade embedded DRAM for page-mode colum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotated data-aligmnent in wade embedded DRAM for page-mode colum will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-971194