Computer mouse having rotatable detection

The present application relates generally to a user-input device for a computer system. More particularly, the present application relates to a computer mouse having the ability to detect rotational movement.

Most computer systems, for example general purpose computers such as portable computers and desktop computers, receive input from a user or user-input device such as a mouse. A mouse allows a user to move an input-pointer, also known as a cursor, to a particular location on a monitor and make a selection in a graphical user interface mode. A conventional mouse includes left and right buttons, as well as a scroll dial.

One embodiment of the present invention is directed to an improved computer mouse having the ability to perform rotational movement of the cursor. The mouse or computer-operated input device comprises a housing which is moveable by the user in the traditional x-y directions along a base plane. A plunger is supported within the housing and oriented substantially normal to the base plane. Normally, the plunger is in a retracted position and in that mode operates as a conventional mouse, but when the plunger is depressed or extended it permits rotational movement of the housing about the longitudinal axis of the plunger and hence the cursor on the monitor without requiring movement of the housing in the x-y directions of the base plane.

Another embodiment allows the mouse to detect a simple rotational movement about the center line of the mouse. A further embodiment allows the user to be able to rotate the cursor and point it in a different orientation without moving the mouse in an x-y plane.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the invention as set forth in the appended claims. The novel features which are believed to be characteristic of the invention, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying FIGURES. It is to be expressly understood, however, that each of the FIGURES is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present invention.

For a more complete understanding of the present invention, reference is now made to the following descriptions taken in conjunction with the accompanying drawing, in which:

FIG. 1 is a top plan view of an embodiment of the present invention;

FIGS. 2A-2B are side views of the embodiment of FIG. 1 in different operational modes;

FIG. 3 is a bottom plan view of the embodiment of FIG. 1 ;

FIG. 4 is a cross-sectional view of the embodiment of FIG. 1 taken along line 4 - 4 of FIG. 1 ;

FIGS. 5A-5B are schematics of the bottom view of an embodiment of the present invention demonstrating positioning of the sensors and the rotation plunger;

FIGS. 6A-6B are schematics of an embodiment of the present invention demonstrating combined rotational and directional movement.

Referring now to FIGS. 1 and 2 A- 2 B, mouse 10 comprises outer housing 11 . Since FIG. 1 is a top plan view, the top portion of housing 11 is illustrated. Mouse 10 includes a left button 12 , a right button 13 , and a scroll dial 14 . Left button 13 , right button 13 , and scroll dial 14 perform in a conventional manner.

Mouse 10 includes plunger 16 , which extends through the top of housing 11 . Referring to FIG. 4 , plunger 16 extends through housing 11 , and when depressed as shown in FIG. 2B , end 21 of plunger 16 extends out the bottom of housing 11 . A ring button 15 circumscribes the top of plunger 16 .

Referring to FIG. 3 , the bottom of housing 11 may include bearings 31 which facilitate the directional moving of housing 11 in an x-y direction along a horizontal or base plane 22 , as shown in FIGS. 2A and 2B . Referring still to FIG. 3 , sensors 32 and 33 are preferably positioned a predetermined distance, r, on opposite sides of end 21 of plunger 16 . Such sensors may comprise conventional sensors and ma include optical scanning capabilities.

Referring now to FIG. 4 , plunger 16 is supported within housing 11 and includes top portion 41 and bottom portion 42 . Top portion 41 extends to the top of housing 11 permitting the user to depress plunger 16 as needed. Ring button 15 is in communication with switch 43 which operates a particular function upon engagement of plunger 16 with base plane 22 as discussed in more detail below. Plunger 16 is supported within housing 11 using conventional means. The stroke of plunger 16 is limited by interpreter 44 which engages ring 45 fixed around plunger 16 . In this manner, plunger 16 is laterally restrained by ring 45 and bearings 47 at the bottom portion 42 , and has limited vertical stroke. Furthermore, bottom portion 42 of plunger 16 may include rubber tip 46 which engages the table or other support representing base plane 22 .

In the operation of the present invention, the user depresses top portion 41 of plunger 16 . Such an action depresses rubber tip 46 against base plane 22 . In this manner, the directional movement of mouse 10 in an x-y direction on base plane 22 is limited, preferably prohibited. At that point, the user may rotate mouse 10 about longitudinal axis 48 of plunger 16 .

Referring to FIGS. 5A and 5B , such rotation about axis 48 results in the vertical movement “y” of sensor 32 (see FIG. 5B ). In this manner, the angular movement, θ, can be calculated as:

θ=(γ/2 πr )×360°

At that time, the user may depress ring button 15 to activate a particular function. For example, the present invention may be particularly useful in a video game which requires that the operator orient a particular object such as gun, a rifle or canon, and then fire the virtual firearm by depressing ring button 15 .

Referring now to FIGS. 6A and 6B , it may be beneficial for the operator to move the mouse of the present invention in both a rotational movement and an x-y directional movement on base plane 22 . Such a movement is illustrated by comparing FIG. 6B to FIG. 6A . For example, as illustrated, axis 48 has been moved a positive “x” distance and a negative “y” distance. Under these circumstances, α may be calculated as follows:

α=tan −1 ( x/y )

Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.