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:
Aug. 04, 1998
Filed:
Aug. 12, 1996
Yoseph L Linde, Needham, MA (US);
Jeffrey F Tabor, Brookline, MA (US);
LANart Corporation, Needham, MA (US);
Abstract
The invention relates to the efficient coding of packetized binary (NRZ) data, for example Ethernet packets, over a binary channel. Since Ethernet packetized data has three states (0, 1, and Idle), the theoretical bandwidth required for transmission, assuming completely random packets of arbitrary length and arbitrary interpacket idle periods, i.e. gaps, is 1.585 the data rate. The invention uses the information that both packets and gaps have predetermined minimum lengths constructs more efficient codes. In particular, a coding scheme is shown that provides in two states signal requiring a bandwidth of only 1.25 the three state signal data rate.