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:
Jul. 06, 2004
Filed:
May. 25, 2001
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/08 ; G09G 5/00 ; H04N 7/18 ; G06F 3/00 ;
U.S. Cl.
CPC ...
G09G 5/08 ; G09G 5/00 ; H04N 7/18 ; G06F 3/00 ;
Abstract
Herein disclosed is a keyboard apparatus which comprises a joystick, a switch mounted on the joystick, a scan board operative to input a switch signal of the switch-on action of the switch, a memory for memorizing a key code relevant to the switch, a plurality of numerical keys each having a key code inputted therein and outputting a key code signal indicative of the key-pushed actions of the numerical keys, a CPU having the switch signal and the key code signal inputted therein, and state setting means for selectively setting two operation states respectively having the switch signal and the key code signal outputted from the CPU.