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. 20, 1991
Filed:
Oct. 04, 1989
Jean-Claude Grima, Chatillon, FR;
Gabriel Bretez, Le Plessis Robinson, FR;
U.S. Philips Corp., New York, NY (US);
Abstract
Apparatus for rearranging signal channels of a multi-loop TDM transmission system, each loop having a plurality of high rate channels CI in successive base frames, portions of successive base frames forming a plurality of low rate channels CS. The system capacity can thereby readily be expanded by including additional loops. In order to rearrange a plurality p of asynchronous TDM signals into the correct channels to constitute a plurality of synchronous outgoing TDM signals, the apparatus includes respective units SRI for providing synchronization and rearrangement of the signals in the high rate (CI) channels. The p outputs of the SRI units are connected to p respective inputs of an interloop switching unit CII for switching the CI channels, and also to p respective inputs of an interloop switching unit RCIS which rearranges and switches the CS channels. The p outputs of the unit CII and the p outputs of the unit RCIS are paired, the respective pairs being supplied to respective combination circuits which combine the signals in each pair to derive the respective synchronous multiplexed outgoing signals.