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:
Sep. 03, 1985
Filed:
Dec. 20, 1983
Modeste Ambroise, Vence, FR;
Michel Demange, Saint Jeannet, FR;
Gerald Lebizay, Larchmont, NY (US);
Jean-Marie Munier, Cagnes Sur Mer, FR;
Michel H Peyronnenc, Saint Jeannet, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The contents of input time-division channels on a closed-loop link (10LO, 10HI) are stored in a memory (173) at the address supplied by an input address counter (IAC) controlled by an incoming timing signal (2MCR). The memory is read out under control of an output address counter (OAC) controlled by an outgoing timing signal (2MCT). Each time interval is divided into one read period and two write periods. Means (186) are provided to select one of the two write periods dependent on the phase relationship between the incoming and outgoing timing signals. The units connected in series by means of the closed-loop link receive a timing signal circulating on a timing loop (15) that is closed by a master timing device (13). Slave timing devices (18) inserted in the timing loop regenerate the timing signals circulating thereon and check same.