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:
Aug. 27, 1985
Filed:
Jun. 29, 1983
Hiroshi Kume, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
In order to increase the speed at which a determination is made as to which of a number of competing stations will occupy a particular block, the blocks are divided into a plurality of time slots and the various stations transmit probe signals into the time slots. Each station transmits its probe signal with a particular probability, with the probabilities preferably differing between respective stations. The number of occupied blocks in each frame can be counted to determine a degree of congestion, and the probe signal probabilities can be adjusted in accordance with the degree of congestion. Also if the degree of congestion is low, stations can transmit their packet signals directly without first transmitting probe signals, and the probe signal procedure will be followed thereafter only if a packet collision occurs.