Browse Prior Art Database

Four/Six-Block Transmission Code

IP.com Disclosure Number: IPCOM000053349D
Original Publication Date: 1980-Jan-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Balliet, L Wylie, TJ [+details]

Abstract

There are numerous transmission codes, many of which exhibit desirable characteristics to simplify hardware implementation and/or reduce bandwidth. For easy implementation, the following characteristics are generally desirable: 1. Two levels (simple threshold detection and good signal to noise performance). 2. No DC component in spectrum (permits AC coupling). 3. Many transitions (simple clock regeneration). 4. Relatively low-speed circuits and logic.