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:
Nov. 10, 1987
Filed:
Jul. 23, 1985
Hiroshi Kume, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A digital signal transmission system for communicating digital signals in both a Faxnet and a CSMA/CD mode over a single cable. The system includes plural stations coupled to the single cable via taps, the stations transmitting time-division multiplexed digital signals on the cable with fixed time positions assigned to the signals within periodically repeated time base frames, which frames are subjected to further divisions so that individual ones of the stations transmit packets which occupy specific time periods in the frame. A send logic circuit prevents stopping of digital signal transmission from a station even if a collision occurs with a signal transmitted from the station in the CSMA/CD mode while a receive logic circuit prevents stopping of digital signal reception even if a collision is detected after start of digital signal reception.