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:
Jan. 20, 1987
Filed:
Apr. 10, 1985
Kenneth S Darton, Bishops Stortford, GB;
Standard Telephones & Cables Public Limited Company, London, GB;
Abstract
An arrangement for digital multiplexing onto a common highway a plurality of analogue input signals which are physically spaced apart over a distance. m time division multiplexing units 5a each have for each of n separate analogue signals n single channel pulse coding means 6 the outputs of which are time division multiplexed at a common outlet 12. Each multiplexing unit 5a also has a timing circuit 7 which can be either free running or locked to the similar timing circuit of a succeeding unit (5b). Each unit has (m-1) bypass connections 15, 16, 17 so that the multiplexed outlets of succeeding units are fed in parallel to a group multiplexer. The timing circuits, being cascaded, ensure that propagation delays for the digital signals from each of the n analogue inputs are obviated.