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:
Apr. 16, 1996
Filed:
Sep. 30, 1994
Mamoru Nagamoto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a switching system of multiple time slot interchangers associated with outlet ports, each interchanger includes multiple data memories respectively connected to inlet ports and connected to the outlet port with which the interchanger is associated. A set of commands is established for each incoming data signal. The command set includes an inlet port number (IPN), an incoming slot number (ISN), an outlet port number (OPN), and an outgoing slot number (OSN). During a write cycle, one of the inlet ports is selected in accordance with the IPN command and one of the data memories which are associated with the selected inlet port is selected in accordance with the OPN command. The selected data memory is caused to store the data signal of an incoming time slot identified by the stored ISN command into one of its storage locations identified by the stored ISN command. During a subsequent read cycle, one of the outlet ports is selected in accordance with the OPN command and one of the data memories which are associated with the selected outlet port is selected in accordance with the stored IPN command. The selected data memory is caused to read a data signal from one of its storage locations identified by the ISN command onto an outgoing time slot identified by the OSN command.