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. 02, 1997
Filed:
Aug. 10, 1994
Applicant:
Inventor:
Ivan Wong Yang, Unionville, CA;
Assignee:
ATI Technologies Incorporated, Thornhill, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395309 ; 395871 ; 39542101 ;
Abstract
A method of communicating with peripheral devices via a personal computer parallel port having computer data bus lines but no address bus lines comprising connecting the input of a multiplexer to the parallel port, the multiplexer having a data bus input and a databus output and an address bus output, applying address data to the computer data bus, applying an address control signal to the multiplexer and passing the address data only to the address bus output as a result thereof.