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. 27, 1999
Filed:
Apr. 30, 1996
Misao Fukuda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A method of bidirectional data transmission with a single transmission line using a time-compression multiplexing method, which is configured to allow a downstream channel capacity to be higher than an upstream channel capacity. In a bidirectional communication system, a master unit and a slave unit exchange data alternately in the time-compression mode. The method, according to the present invention, sets a downstream data transmission time, tm, for data transmission from the master unit to the slave unit is set longer than an upstream data transmission time, ts, for the opposite direction. As a result, the downstream data rate (or the amount of data transferred in the downstream direction per unit time) becomes larger than the upstream data rate.