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. 13, 1977
Filed:
May. 20, 1976
Rikio Maruta, Tokyo, JA;
Nippon Electric Company, Limited, Tokyo, JA;
Abstract
A PCM-TASI signal transmission system utilizes assignment control means responsive to an output signal from means for detecting the presence of information on each of a plurality (m) of input trunks arranged in time-serial fashion. The assignment control means selectively assigns a PCM signal representing the input trunk signal, during the period when information is present thereon, to one of a second plurality (s) of transmission channels (s<m). The assignment control means includes means for generating and transmitting signals representing the selected assignments state of the input trunks. The assignment control means includes improvements comprising a first memory for storing the number of each input trunk to which a transmission channel must be newly assigned; a second memory for storing data identifying each transmission channel ready to accept a new assignment to an input trunk; a third memory for storing the designation of a newly assigned input trunk and its transmission channel; a fourth memory, in the assignment state signal generation means, partially renewing its memory content according to the contents of the third memory; means responsive to the contents of the first through fourth memories for deciding each assignment and for renewing the contents of the memories after each new assignment decision; means for varying the sequence of output signal transmission from the information detector means to the assignment control means for at least every superframe; and means for varying the sequence of reading the second memory for at least every superframe.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile