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:
Mar. 24, 1992
Filed:
Jan. 27, 1988
Applicant:
Inventors:
Richard M Lee, Wilmette, IL (US);
Gary T Cromack, Greenfield, MA (US);
Assignee:
Spectrix Corporation, Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ; H04J / ;
U.S. Cl.
CPC ...
359118 ; 359110 ; 359121 ; 359143 ; 359165 ; 359174 ;
Abstract
An infrared data communications network in which groups of personal computers and associated peripherals may communicate by infrared signals with each other. The system utilizes a error correction and a packet switched protocol which allows any terminal to select communications with any other terminal or terminals without degradation of the error rate. Error free transmission is maintained by means of error correcting encoding and a handshake protocol. The packet switched protocol permits any terminal to function as a store and forward repeater thus making the system more reliable and less susceptible to beam blockage.