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:
Dec. 30, 1986
Filed:
Jul. 18, 1983
Applicant:
Inventors:
Assignee:
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 85 ; 455-5 ; 370 95 ; 370 93 ;
Abstract
A multiple access communications system links a plurality of geographically dispersed subscriber locations (each of which including a transmitter and receiver) with a central location (also including a transmitter and receiver). Multiple access communication is required in the direction from the subscriber transmitters to the central receiver. In order to maintain stability, a subscriber/transmitter which unsuccessfully transmits (due to a collision with a transmission from another subscriber) will retransmit. Multiple succeeding unsuccessful transmissions at any subscriber result at that subscriber in increasingly longer delays between successive transmissions.