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:
Jul. 04, 1995
Filed:
May. 13, 1993
Hiroshi Nakaide, Kawasaki, JP;
Katsuhiko Nakamoto, Kawasaki, JP;
Kensaburo Namba, Kawasaki, JP;
Shinji Hiyama, Kawasaki, JP;
Satoshi Takeda, Kawasaki, JP;
NEC Corporation, Tokyo, JP;
Abstract
A time switch control system having a cross-connect function is used for digital time-division. Multiplex communications permit desired channel settings and reduce power consumption. Identifying circuits identify which time-slot signals are to be retained by an input signal retaining memory, and output identification information to the retention memory, and to a retention memory controller. The retention memory controller stores therein the identification information from the identifying circuits, then reads out the identification information, and controls the input signal retaining memory in accordance with the contents of the identification information. Only the specified time-slot signals are stored and retained by the input signal retaining memory, thereby reducing power requirements. Exchange/output circuits exchange the time-slot signals stored in the input signal retaining memory in accordance with channel setting information, and output the exchanged signals.