CN1129840C - cursor control device - Google Patents

Abstract

A cursor control device comprises: a shell, a linear image input device and an image processing circuit; the linear image input device is arranged on the upper side of the shell, and comprises a first and a second linear sensor for sensing a linear image signal and generating corresponding linear image signals respectively; the image processing circuit is connected to the two linear sensors and is used to process the linear image signals input by the two linear sensors; the image processing circuit records the first and the second linear image signals and the time when they are generated, and judges the displacement of the graphics according to the linear image data of the graphics in the first and the second linear image signals and generates a corresponding displacement signal.

Description

cursor control device

The invention relates to a cursor control device (pointing device), in particular to a cursor control device for a display using two linear sensors and fingerprints to generate displacement signals.

The cursor control device is a device for generating a cursor movement signal to control the movement of the cursor on the display. A common computer mouse is a cursor control device. In the existing cursor control device, two or three keys are arranged above the housing for inputting various key signals. When the user wants to use the cursor control device to scroll the window on the display, the user must first move the cursor to the scroll axis, and then move one of the buttons to move the scroll box to a proper position.

Please refer to FIGS. 1 and 2 . FIG. 1 is a circuit block diagram of a conventional mouse 10 . The mouse 10 is connected to a computer system 20 , and the computer system 20 is connected to a monitor 22 . The mouse 10 includes a housing 12, two buttons 14 are arranged on the upper side of the housing 12 for inputting various key signals, and a scroll wheel (not shown) is arranged on the bottom side of the housing 12 for controlling the display 22 the displacement of the cursor.

The computer system 20 includes a memory 24 for storing programs and data, a processor 26 for executing the programs stored in the memory 24, and a key control program 28 stored in the memory 24 for receiving and processing The key signal generated by the key 14, and a display control program 30, such as a WORD application program, are stored in the memory 24, and are used to control the scrolling of the window 32 on the display 22 according to the key signal.

When scrolling the window 32, the user must first move the cursor to the scroll axis on the window 32, and then input the key signal through the key 14 to complete the scrolling work, so it is very inconvenient for the user.

The main purpose of the present invention is to provide an easy-to-use cursor control device, which uses two linear sensors and fingerprints to generate displacement signals for scrolling windows, so that users can easily scroll the windows.

To achieve the above object, the present invention takes the following measures:

A cursor control device according to the present invention includes: a housing; it is characterized in that it also includes: a linear image input device and an image processing circuit;

The linear image input device is arranged on the upper side of the casing for inputting linear images. The image input device includes first and second linear sensors, which are arranged in parallel in the casing for sensing linear image signals and generating them respectively. Corresponding linear image signal;

The image processing circuit is set in the housing and connected to the bilinear sensor, for receiving and processing the linear image signal input by the bilinear sensor;

When a graphic passes through the image input device along a predetermined direction, the first and second linear sensors sequentially generate first and second linear image signals, and the image processing circuit records the first and second linear image signals and each linear image signal. The generation time of the image signal is used to determine the displacement of the graph according to the linear image data of the graph in the first and second linear image signals and generate a corresponding displacement signal.

Wherein, the first linear image signal is a digital signal, which contains a predetermined number of bits. When the graphic passes through a linear sensor of the image input device, the linear image generated by the linear sensor A linear image of bit values is formed within the signal.

Wherein, when different parts of the graphic pass through the linear sensor of the image input device, different linear images are formed in the linear image signal generated by the linear sensor.

Wherein, the graphic is a fingerprint of a finger.

Wherein, among the first and second linear image signals, each linear image signal contains a linear image of one of the graphics, and when the image processing circuit receives each latest linear image signal, it converts the latest linear image signal to The linear image of the figure in the image signal is compared with the linear images of the figure in the at least two first and second linear image signals recorded previously, to find out the line image similar or identical to the linear image of the figure in the latest linear image signal For a specific linear image signal, the image processing circuit judges the displacement speed and direction of the graphics according to the time difference and displacement between the latest linear image signal and the specific linear image signal, and generates a corresponding displacement signal.

Wherein, when the image processing circuit compares the linear images of the graphics contained in the linear video signal with the linear images of the graphics in the previously recorded several first and second linear video signals, it can determine that the graphic The one-dimensional displacement or two-dimensional displacement, and generate a corresponding one-dimensional or two-dimensional displacement signal.

Wherein, it also includes a rolling ball arranged on the bottom side of the housing and two optical sensors, the optical sensors are arranged in the housing for sensing the rolling of the rolling ball in two mutually perpendicular directions and generating a two-dimensional cursor Signal.

In conjunction with the accompanying drawings and embodiments, the specific structural features of the present invention are described in detail as follows:

A brief description of the accompanying drawings:

FIG. 1 is a schematic diagram of a conventional cursor control device.

FIG. 2 is a circuit block diagram of the cursor control device in FIG. 1 .

FIG. 3 is a schematic diagram of the cursor control device of the present invention.

FIG. 4 is a circuit block diagram of the cursor control device in FIG. 3 .

FIG. 5 is a schematic diagram of a finger print.

FIG. 6 is the data of the linear image signal generated by the fingerprint in FIG. 5 .

FIG. 7 is linear image data composed of several bit values in the linear image signal of FIG. 6 .

As shown in FIGS. 3 and 4 , FIG. 3 is a schematic diagram of the cursor control device 40 of the present invention, and FIG. 4 is a circuit block diagram of the cursor control device 40 . The cursor control device 40 is a mouse, which includes a housing 42, a rolling ball 44 located at the bottom of the housing 42, two optical sensors 46, a linear image input device 48 and an image processing circuit 54; Two optical sensors 46 are arranged in the casing 42, and are used for sensing that the rolling ball 44 rolls in two mutually perpendicular directions and generate a two-dimensional cursor signal; the linear image input device 48 is arranged on the upper side of the casing 42, and uses For inputting a linear image; the image processing circuit 54 is set in the casing 42 .

The image input device 48 includes first and second linear sensors 50 , 52 arranged in parallel in the casing 42 for sensing linear images and generating corresponding linear image signals respectively. The image processing circuit 54 is connected to the two linear sensors 50 , 52 for receiving and processing the linear image signals input by the two linear sensors 50 , 52 to generate a displacement signal.

The cursor control device 40 is connected to a computer system 60 , and the computer system 60 is connected to a display 62 . The computer system 60 includes a memory 64, a processor 66, an input device control program 68 and a display control program 70; the memory 64 is used to store programs and data, and the processor 66 is used to execute the programs stored in the memory 64 , the input device control program 68, such as the driver program of the cursor control device 40 stored in the memory 64, is used to receive and process the displacement signal generated by the image processing circuit 54, and the display control program 70 is stored as an application program such as software WORD In the memory 64, it is used to control the scrolling of the window 72 on the display 62 according to the displacement signal. The image processing circuit 54 of the cursor control device 40 can also be set in the computer sensitive system 60 to receive and process the linear image signals input by the two linear sensors 50 and 52 .

As shown in FIGS. 5 to 7 , FIG. 5 is a schematic diagram of a fingerprint 80 of a finger, and FIG. 6 shows the first and second output signals generated by the first and second linear sensors 50 and 52 respectively when the fingerprint 80 passes through the image input device 48 . The second linear image signals 84, 86. FIG. 7 shows the linear images 88, 90 formed by several bit values in the two linear image signals 84, 86. When a pattern, such as a fingerprint 80, passes through the image input device 48 along a predetermined direction, the first and second linear sensors 50, 52 will sequentially generate a plurality of first and second linear image signals 84, 86. Since each linear image signal contains a predetermined number of bits, the linear image signals 84, 86 generated by the linear sensors 50, 52 will respectively form linear images 88, 90 composed of several bit values. . When different parts of the fingerprint pass through the line sensors 50 , 52 of the image input device 48 , different line images 88 , 90 will be formed in the line image signals generated by the line sensors 50 , 52 . The image processing circuit 54 records each of the first and second linear image signals 84 , 86 and the time when they are generated. In this embodiment, the fingerprint 80 moves one unit from top to bottom. Therefore, the first linear sensor 50 will sequentially generate signals of 0011010100 and 0101000110, and the second linear sensor 52 will sequentially generate signals of 0101000110 and 0010111100 signal.

When the image processing circuit 54 receives the latest linear image signals (0101000110 and 0010111100) from the first and second linear sensors 50 and 52 respectively, it will convert the linear images (10100011 and 101111) compared with the previously recorded line images (110101 and 10100011) of the fingerprint in the first and second line image signals (0011010100 and 0101000110), the second line image signal 0101000110 previously generated by the second line sensor 52 It is the same as the first linear image signal 0101000110 generated later by the first linear sensor 50, and the first linear sensor 50 is arranged in front of the second linear sensor 52, the image processing circuit 54 will obtain It is known that the fingerprint 80 is displaced downward by one unit, and a corresponding one-dimensional or two-dimensional displacement signal containing velocity will be generated according to the time difference between two sets of linear image signals. In this embodiment, the image processing circuit 54 generates a one-dimensional displacement signal that moves downward by one unit displacement, and therefore, the window 72 on the display 62 scrolls downward by one unit.

When the first linear sensor 50 sequentially generates linear image signals of 0011010100 and 0110101000, and the second linear sensor 52 sequentially generates linear image signals of 0101000110 and 1010001100, the image processing circuit 54 will convert the first and second The linear image data (110101, 10100011) of the fingerprint in the linear image signal (0110101000, 1010001100) generated by the two linear sensors 50, 52 later and the linear image data ( 110101, 10100011) comparison, since the linear images of the fingerprints in the linear image signals successively generated by the two linear sensors 50 and 52 are the same, the image processing circuit 54 will generate a built-in velocity based on the time difference between the two sets of linear image signals. The one-dimensional displacement signal that moves to the left, therefore, the window 72 on the display 62 will scroll to the left by a unit distance.

When the user wants to control the scrolling of the window 72 on the display 62, the user only needs to touch and move the image input device 48 with the tip of his finger, and the window 72 will follow the moving direction and speed of the fingerprint 80 to achieve a scrolling effect. .

Compared with the prior art, the present invention has the following effects:

The image input device 48 of the cursor control device 40 of the present invention utilizes two linear sensors 50, 52 and a fingerprint 80 to generate a displacement signal for scrolling the window 72, which is easy and reliable to use.

The above description is to illustrate the structural features of the present invention by using the embodiments, and is not intended to limit the protection scope of the present invention.

Claims (14)

1. A cursor control device, comprising: a casing; it is characterized in that it also includes: a linear image input device and an image processing circuit; The linear image input device is arranged on the upper side of the casing for inputting linear images. The image input device includes first and second linear sensors, which are arranged in parallel in the casing for sensing linear image signals and generating them respectively. Corresponding linear image signal; The image processing circuit is set in the housing and connected to the bilinear sensor, for receiving and processing the linear image signal input by the bilinear sensor; When a graphic passes through the image input device along a predetermined direction, the first and second linear sensors sequentially generate first and second linear image signals, and the image processing circuit records the first and second linear image signals and each linear image signal. The generation time of the image signal is used to determine the displacement of the graph according to the linear image data of the graph in the first and second linear image signals and generate a corresponding displacement signal. 2. The cursor control device according to claim 1, wherein the first linear image signal is a digital signal, which contains a predetermined number of bits, and when the graphic passes through a line of the image input device When the linear sensor is used, a linear image composed of bit values is formed in the linear image signal generated by the linear sensor. 3. The cursor control device according to claim 1, wherein when different parts of the graphic pass through the linear sensor of the image input device, different linear image signals are formed in the linear image signal generated by the linear sensor. linear image. 4. The cursor control device according to claim 3, wherein the graphic is a fingerprint of a finger. 5. The cursor control device according to claim 1, wherein, among the first and second linear image signals, each linear image signal contains a linear image of one of the graphics, and the image processing circuit When receiving each latest line image signal, comparing the line image of the figure in the latest line image signal with the line image of the figure in at least two first and second line image signals recorded previously to find out For a specific linear image signal that is similar or identical to the linear image of the graphic in the latest linear image signal, the image processing circuit judges the displacement speed and direction of the graphic based on the time difference and displacement between the latest linear image signal and the specific linear image signal And generate a corresponding displacement signal. 6. The cursor control device according to claim 5, wherein the image processing circuit combines the linear image of the graphics contained in the linear image signal with the previously recorded first and second linear images When the linear images of the graphics in the signal are compared, the one-dimensional or two-dimensional displacement of the graphics can be judged, and a corresponding one-dimensional or two-dimensional displacement signal can be generated. 7. The cursor control device according to claim 1, further comprising a rolling ball disposed on the bottom side of the housing and two optical sensors, the optical sensors are disposed in the housing for sensing The measuring roller rolls in two mutually perpendicular directions and generates a two-dimensional cursor signal. 8. A cursor control device connected to a computer system, the cursor control device comprising: A housing and a linear image input device; The linear image input device is arranged on the upper side of the casing for inputting linear images. The image input device includes first and second linear sensors, which are arranged in parallel in the casing for sensing the linear images and generating corresponding linear image signal; The two linear sensors are connected to an image processing circuit included in the computer system, and the linear image signals generated by them are sent to the circuit for processing; When a graphic passes through the image input device along a predetermined direction, the first and second linear sensors sequentially generate first and second linear image signals, and the image processing circuit records the first and second linear image signals and each linear image signal generation time, and judge the displacement of the figure according to the linear image of the figure in the first and second linear image signals and generate a corresponding displacement signal. 9. The cursor control device according to claim 8, wherein each linear image signal contains a predetermined number of bits, and when the graphic passes through the linear sensor of the image input device, the linear A linear image data composed of bit values is formed in the linear image signal generated by the sensor. 10. The cursor control device according to claim 8, wherein when the different parts of the graphic pass through the linear sensor of the image input device, within the linear image signal generated by the linear sensor Form different linear images. 11 . The cursor control device according to claim 10 , wherein the pattern is a fingerprint located on a tip of a finger. 12. The cursor control device according to claim 8, wherein, among the first and second linear image signals, each linear image signal contains a linear image of the graphic, and the image processing circuit When each latest linear image signal is received, compare the linear image of the latest linear image signal pattern with the linear images of the graphics in the previously recorded first and second linear image signals to find one and the latest linear image The linear image of the graphic in the signal is similar or identical to a specific linear image signal, and then the image processing circuit judges the displacement speed and direction of the graphic based on the time difference and displacement between the latest linear image signal and the specific linear image signal and generates a corresponding displacement signal. 13. The cursor control device according to claim 12, wherein the image processing circuit combines the linear image of the graphic contained in the linear image signal with the previously recorded first and second linear images. When the linear image of the figure in the image signal is compared, the one-dimensional or two-dimensional displacement of the figure can be judged, and a corresponding one-dimensional or two-dimensional displacement signal can be generated. 14. The cursor control device according to claim 8, further comprising a rolling ball and two optical sensors, the rolling ball is arranged on the bottom side of the casing; the optical sensor is arranged in the casing , for sensing the rolling of the ball in two mutually perpendicular directions and generating a two-dimensional cursor signal.

Images