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:
Mar. 16, 1999
Filed:
Dec. 06, 1996
Geoffrey Chopping, Wimborne, GB;
GPT Limited, Coventry, GB;
Abstract
A telecommunications transmission system carries multiple tributary data streams with SDH compatible multiplexing and demultiplexing arrangements that include a tributary justification algorithm utilizing both byte and bit justification means as well as a double-ended payload protocol. The byte justification means employs an offset clock with a nominal constant frequency offset from the transmission system clock so that the offset clock can be used to force regular rate of byte justifications of constant sign. The bit justification means employs the difference between the tributary clock and the offset clock to determine the bit justifications necessary to multiplex the tributary data stream and the bit justifications are normally of complementary sign to the forced regular byte justifications except where the frequency of the offset clock lies between the frequency of the transmission clock.