Title:
DATA ENCODER/DECODER FOR A HIGH SPEED SERIAL LINK
Document Type and Number:
WIPO Patent Application WO1998034413
Kind Code:
A3
Abstract:
An encoder/decoder is disclosed which is operative to convert an 8 bit value to a ten bit serial run length limited code for transmission over a serial data link. The encoding technique maintains DC balance within 2 bits over a single ten bit word and compensates for DC imbalance by inverting selected words in the transmission sequence to correct for a DC imbalance resulting from the transmission of a prior unbalanced word. One or more encoding lookup tables are employed at the encoder to map each byte into a ten bit run length limited code for serialization and transmission over the serial data link. A second decoding lookup table is employed at the decoder to map the received 10 bit run length limited code into the original 8 bit value.
Inventors:
CALDARA STEPHEN A
SLUYSKI MICHAEL
STROUBLE RAYMOND L
SLUYSKI MICHAEL
STROUBLE RAYMOND L
Application Number:
PCT/US1998/001443
Publication Date:
October 29, 1998
Filing Date:
January 27, 1998
Export Citation:
Assignee:
FUJITSU NETWORK COMMUNICATIONS (US)
FUJITSU LTD (US)
FUJITSU LTD (US)
International Classes:
H03M7/14; G06T9/00; H03M5/14; H03M13/31; H04L25/49; (IPC1-7): H04Q/
Foreign References:
| US5122912A | 1992-06-16 | |||
| US4779072A | 1988-10-18 | |||
| US4675650A | 1987-06-23 | |||
| US4520346A | 1985-05-28 |
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