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:
Nov. 07, 2000
Filed:
May. 27, 1998
Applicant:
Inventor:
Sadakazu Shiga, Fukushima-ken, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345163 ; 345167 ; 345169 ; 345157 ; 341-2 ; 341 22 ;
Abstract
When the ball of a mouse is rotated, an up/down counter outputs a count N according to the direction of rotation and the amount of rotation. A controller compresses the count N to seven-bit data according to a conversion table. The controller also attaches L-button data indicating the state of the L button of the mouse to the most significant bit of the compressed seven-bit data. Then, the controller changes the bit positions of the eight-bit data, and reverses each bit value. The eight-bit data to be transferred has been thus completed. The controller sends bit by bit in series the data from a lower bit to a signal processing unit.