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. 23, 2000
Filed:
Apr. 16, 1998
Applicant:
Inventor:
Tohru Mamata, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
710 63 ; 710 62 ; 710129 ; 710 73 ; 710 15 ;
Abstract
Data input from a USB keyboard or mouse to a USB host controller is transformed by an SM-BIOS into data corresponding to a PS/2 keyboard/mouse, and then transferred to the I/O port (60h/64h) of a standard bus interface via the shadow port of a KBC. The KBC generates IRQ1 (IRQ12) similar to the case wherein it receives data from the PS/2 keyboard or mouse, thereby starting a keyboard driver.