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:
May. 19, 1998
Filed:
Jan. 24, 1995
Applicant:
Inventor:
Eric F Aas, Windsor, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395822 ; 395311 ;
Abstract
A method for controlling a switch on the parallel port of a PC for the purpose of selecting between multiple peripherals connected to the parallel port is provided. In a first embodiment, the method includes setting a data value to control the switch. In a second embodiment, the method includes sending a PCL command sequence to control the switch. In a third embodiment, the method includes toggling a control line to control the switch. In a fourth embodiment, the method includes setting a control line and toggling a data line to control the switch.