H - Electricity – 04 – L
Patent
H - Electricity
04
L
325/1, 354/108
H04L 7/00 (2006.01) H04L 1/24 (2006.01) H04L 7/04 (2006.01) H04L 7/027 (2006.01)
Patent
CA 1090476
APPARATUS FOR WORD SYNCHRONIZATION IN AN OPTICAL COMMUNICATION SYSTEM Abstract of the Disclosure An optical communication system is disclosed in which a bipolar signal of the type transmitted in digital transmission systems is converted into a unipolar binary signal for transmission over an optical transmission medium. The three levels of the bipolar signal are converted into three pairs of bits in the binary signal. One pair of bits is not utilized in the conversion and is therefore labeled as a forbidden word. Synchronization is achieved at the receiving location for the purpose of decoding by detecting the presence of the forbidden word in the binary signal and in response to this detection an energizing pulse is produced. This energizing pulse drives a clock circuit which in turn drives a decoding apparatus utilized to translate the binary signal back into the bipolar signal. As a result of this type of word synchronization, individual errors introduced into the binary signal do not result in a framing error.
265249
Kirby Eades Gale Baker
Western Electric Company Incorporated
LandOfFree
Apparatus for word synchronization in an optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for word synchronization in an optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for word synchronization in an optical... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-226988