Cursor positioning apparatus
First Claim
1. A cursor positioning apparatus, comprising:
- an upper case including an upper case cover which has a left, a center and a right input key and a locking lug, and an upper case base board which has three contact switches located under the input keys and a locking slot engageable with the locking lug;
a center body including a cover having within which two light emitting diodes, a base engageable with the cover having a circular disk at a bottom which has snap hook disposed thereunder, a X-axis sliding bar, which is a X-axis movable photo grid located between the cover and the base, having a transparent and non-transparent photo grid zone formed therein and two sliding blocks respectively located at both ends thereof, a Y-axis sliding bar which is a Y-axis movable photo grid located between the cover and the base, having a transparent and non-transparent photo grid formed therein and two sliding blocks respectively located of both ends thereof, wherein the base has a X-axis photo transistor and a Y-axis photo transistor, each having a stationary photo grid disposed thereon, the base further having upward peripheral flanges with two pairs of U-shaped slots symmetrically formed therein and facing each other and enabling the X-axis and Y-axis movable photo grids to slide therethrough; and
a lower case including a lower case cover which has a circular opening in the center, a lower case base board which has a plurality of curve-shaped concave slots forming an annular ring in the center, and a control circuit board screwed between the lower case cover and the low case base board, wherein the control circuit board has a circular opening in the center, cut away notches at the four corners respectively and a plurality of electric components disposed thereon.
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Accused Products
Abstract
This is an improvement of a cursor positioning apparatus for a computer display device which includes an upper case, a center body and a lower case. It controls the movement and positioning of a cursor through the sliding movement of X-axis and Y-axis. There are also photo electric components for detecting the movement of photo grid and the displacement of the sliding bar in X-axis and Y-axis. The sensing signals are sent to a control circuit board and computer for further processing. The present invention may further have a curve-shaped slot in the upper case engaging with a square center pillar in the center body. The center pillar further engages with the lower case, and thus becomes an integral part of a keyboard. The present invention can be rotationally operated about a fixed axis point. A user can use hand and wrist to control the movement and positioning of the cursor on a display device without moving the arm. It is better ergonomically designed and structured than the conventional mouse.
14 Citations
19 Claims
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1. A cursor positioning apparatus, comprising:
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an upper case including an upper case cover which has a left, a center and a right input key and a locking lug, and an upper case base board which has three contact switches located under the input keys and a locking slot engageable with the locking lug; a center body including a cover having within which two light emitting diodes, a base engageable with the cover having a circular disk at a bottom which has snap hook disposed thereunder, a X-axis sliding bar, which is a X-axis movable photo grid located between the cover and the base, having a transparent and non-transparent photo grid zone formed therein and two sliding blocks respectively located at both ends thereof, a Y-axis sliding bar which is a Y-axis movable photo grid located between the cover and the base, having a transparent and non-transparent photo grid formed therein and two sliding blocks respectively located of both ends thereof, wherein the base has a X-axis photo transistor and a Y-axis photo transistor, each having a stationary photo grid disposed thereon, the base further having upward peripheral flanges with two pairs of U-shaped slots symmetrically formed therein and facing each other and enabling the X-axis and Y-axis movable photo grids to slide therethrough; and a lower case including a lower case cover which has a circular opening in the center, a lower case base board which has a plurality of curve-shaped concave slots forming an annular ring in the center, and a control circuit board screwed between the lower case cover and the low case base board, wherein the control circuit board has a circular opening in the center, cut away notches at the four corners respectively and a plurality of electric components disposed thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cursor positioning apparatus, comprising
an upper case including an upper case cover which has a left, a center and a right input key and a locking lug, and an upper case base board which has a locking slot engageable with the locking lug; -
a center body including a substantially square cover, a base which is engageable with the cover having a circular disk at a bottom and upward peripheral flanges forming two pairs of symmetrical U-shaped slots therein, a X-axis sliding bar which is located between the cover and the base having two sliding blocks located at both ends thereof and a linear slot axially formed on a top thereof for housing a rope therein, and a Y-axis sliding bar which is located between the cover and the base having two sliding blocks located at both ends thereof and a linear slot axially formed on a top thereof for housing the rope therein, wherein the rope is shielded by a tube; and a lower case including a lower case cover, a lower case base board having a bearing and a bearing seat located at a center of a concave bottom thereof, and a control circuit board screwed between the lower case cover and the lower case base board, wherein the control circuit board includes; a X-axis movable photo grid having a transparent and non-transparent photo grid zone formed therein which has a hollow shaft concentrically located thereof winding the rope thereon for turning the X-axis movable photo grid, the hollow shaft engaging with a shaft and a bearing on the control circuit board; a Y-axis movable photo grid having a transparent and non-transparent photo grid zone formed therein which has a hollow shaft concentrically located thereof winding the rope thereon for turning the Y-axis movable photo grid, the hollow shaft engaging with a shaft and a bearing on the control circuit board; a X-axis photo electric means having a light emitting diode above a photo transistor which has a stationary photo grid disposed thereon, and a through slot for the X-axis movable photo grid to slide therein; a Y-axis photo electric means having a light emitting diode above a photo transistor which has a stationary photo grid disposed thereon, and a through slot for the Y-axis movable photo grid to slide therein; a spindle screwed with the lower case base board of the center body engaging with the bearing and the bearing seat of the lower case base board; and electric components including resistor, capacitor, inductor, transistor, and IC electrically connected. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A cursor positioning apparatus, comprising
an upper case including a plurality of input keys and a curve-shaped engaging slot located inside for preventing dust form entering therein; -
a center body including a cover which has two light emitting diodes located therein, a base engageable with the cover having upward peripheral flanges forming two pairs of symmetrical U-shaped slots therein, a X-axis sliding bar which is a X-axis movable photo grid having a transparent and non-transparent photo grid zone formed therein and two sliding blocks located at two ends thereof, a Y-axis sliding bar which is a Y-axis movable photo grid having a transparent and non-transparent photo grid zone formed therein and two sliding blocks located at two ends thereof, a X-axis photo transistor having a stationary photo grid disposed thereon, a Y-axis photo transistor having a stationary photo grid disposed thereon, and a square center pillar running through the center body having snap hooks on a top and bottom for engaging respectively with the upper case and the base of the center body, wherein the X-axis and Y-axis movable photo grids are slidably engaged with the symmetrical U-shaped slots of the base and the X-axis and Y-axis movable photo grids and the X-axis and Y-axis photo transistors are located between the cover and the base of the center body; and a lower case located below a right portion of a keyboard as an integral part thereof having a square opening and grooves formed inside for allowing the sliding blocks of the X-axis and Y-axis movable photo grids to move therein. - View Dependent Claims (19)
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Specification