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. 02, 1996
Filed:
Nov. 17, 1993
Applicant:
Inventors:
Stuart R Blair, San Francisco, CA (US);
Peter Mierau, Concord, CA (US);
Randall J Spurrier, Berkeley, CA (US);
Assignee:
Adobe Systems Incorporated, Emeryville, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; H04L / ; H04L / ;
U.S. Cl.
CPC ...
395885 ; 3642394 ; 3642393 ; 364D / ; 375359 ; 341 95 ;
Abstract
The present invention removes restrictions on the maximum data transfer rate provided by the Centronics.RTM. and PC-compatible parallel interface (i.e., standard parallel interface). Further, the present invention retains complete compatibility with the standard parallel port and peripheral device cable. With the present invention, a computer (i.e., host) is able to send data through a standard parallel port at a high rate by eliminating the Busy handshaking signal. Further, one to three Input/Output (I/O) instructions can be eliminated for each byte of data transfer.