Optical mouse having an integrated camera

• US 6,392,632 B1
• Filed: 12/08/1998
• Issued: 05/21/2002
• Est. Priority Date: 12/08/1998
• Status: Expired due to Term

• Current Assignee: Winbond Electronics Corporation
• Original Assignee: Winbond Electronics Corporation
• Inventors: Lee, Wen-Chieh Geoffrey
• Primary Examiner(s): Hjerpe, Richard
• Assistant Examiner(s): ZAMANI, ALI A
• Application Number:
  US09/207,425
• Time in Patent Office: 1,260 Days
• Field of Search: 345/158, 345/163, 345/166, 345/156, 382/313, 382/314
• US Class Current: 345/158
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence

Abstract

The present invention provides an apparatus for capturing images and for manipulating a cursor. The apparatus can be used for operation in a first mode and a second mode. The apparatus includes an opto-electronic mechanism that is provided for receiving image signals. The apparatus also has a user-selectable trigger that allows a user to assert or de-assert a mode signal that determines whether operation is desired in the first mode or the second mode. The apparatus has a controller that is coupled to the opto-electronic mechanism and user-selectable trigger for receiving the mode signal. When operation is in the first mode, the received image signals are processed and used to control movement of a cursor on a screen or display. When operation is in the second mode, the received image signals are processed and displayed as video images on a PC.

Claims

1. An apparatus for capturing images and for manipulating a cursor, said apparatus capable of being used in a first mode and a second mode, said apparatus comprising:

an opto-electronic mechanism for capturing images;

a user-selectable trigger for allowing a user to determine if operation is in the first mode or the second mode and for providing a mode signal;

a controller coupled to the opto-electronic mechanism and user-selectable trigger for receiving the mode signal and when in the first mode for translating the captured signals into corresponding motion information signals used to control the cursor, and when in the second mode for capturing and displaying the images; and

a cursor movement module for receiving the captured images and using image comparison to selectively provide cursor position signals based on the image comparison.

2. The apparatus of claim 1 further comprising an image capture module coupled to the controller for controlling the opto-electronic mechanism and managing the image capture.

3. The apparatus of claim 1 wherein the opto-electronic mechanism includes a charge-coupled device (CCD) sensor.

4. The apparatus of claim 1 wherein the opto-electronic mechanism includes a CMOS sensor.

5. The apparatus of claim 1 further comprising a memory coupled to the controller for storing the captured images and the motion information signals.

6. The apparatus of claim 1 wherein the controller further includes a DSP module.

7. The apparatus of claim 6 wherein the DSP module further includes a compression module for compressing the captured images.

8. The apparatus of claim 1, wherein the controller is a separate PC that is coupled to the apparatus.

9. The apparatus of claim 1, wherein the apparatus includes a bottom surface, and a chamber provided in the bottom surface, and wherein the opto-electronic mechanism is provided in the chamber.

10. The apparatus of claim 9, further comprising a light source provided in the chamber for providing illumination.

11. The apparatus of claim 9, wherein the apparatus includes a side surface adjacent to the bottom surface, and wherein the apparatus is supported on the side surface to facilitate image capture by the opto-electronic mechanism.

12. The apparatus of claim 1, wherein the user-selectable trigger is a laser beam.

13. A method of using images to provide mouse position signals, comprising the steps of:

a. receiving a first image;

b. receiving a second image after receipt of the first image; and

c. comparing the first and second images and selectively modifying the mouse position signals based on the comparison.

14. In an apparatus for capturing images and for manipulating a cursor, said apparatus having a first mode and a second mode, a method of providing position information signals or images comprising:

a. receiving a modes signal that indicates desired operation in either a first mode or a second mode;

b. receiving image signals;

c. if the first mode is selected, controlling cursor movement based on the received image signals; and

d. if the second mode is selected, processing and displaying image signals;

wherein controlling cursor movement and processing and displaying image signals includes motion estimation.

15. The method of claim 14 wherein controlling cursor movement is done by determining position signals based on the received image signals.

16. A notebook computer having an apparatus for capturing images and for manipulating a cursor, said apparatus capable of being used in a first mode and a second mode, said apparatus comprising:

an opto-electronic mechanism for capturing images;

a user-selectable trigger for allowing a user to determine if operation is in the first mode or the second mode and for providing a mode signal; and

a controller coupled to the opto-electronic mechanism and user-selectable trigger for receiving the mode signal and when in the first mode for translating the captured signals into corresponding motion information signals used to control the cursor, and when in the second mode for capturing and displaying the images.

17. A notebook computer having an apparatus for capturing images and for manipulating a cursor, said apparatus capable of being used in a first mode and a second mode, said apparatus comprising:

an opto-electronic mechanism for capturing images;

a user-selectable trigger for allowing a user to determine if operation is in the first mode or the second mode and for providing a mode signal;

a controller coupled to the opto-electronic mechanism and user-selectable trigger for receiving the mode signal and when in the first mode for translating the captured signals into corresponding motion information signals used to control the cursor, and when in the second mode for capturing and displaying the images; and

a sliding board having a view hole, with the sliding board covering the opto-electronic mechanism when in the first mode and with the view hole aligned with the opto-electronic mechanism when in the second mode.

18. The computer of claim 17, wherein the board has a bottom surface facing the opto-electronic mechanism, the bottom surface having an image provided thereon.

19. The computer of claim 17, wherein the apparatus further includes a light source provided adjacent the opto-electronic mechanism for providing illumination.

20. The computer of claim 17, further including a surface having a cavity, with the opto-electronic mechanism and light source provided in the cavity, and with the board covering the cavity.

21. A notebook computer having an apparatus for capturing images and for manipulating a cursor, said apparatus capable of being used in a first mode and a second mode, said apparatus comprising:

an opto-electronic mechanism for capturing images;

a user-selectable trigger for allowing a user to determine if operation is in the first mode or the second mode and for providing a mode signal; and

a controller coupled to the opto-electronic mechanism and user-selectable trigger for receiving the mode-signal and when in the first mode for translating the captured signals into corresponding motion information signals used to control the cursor, and when in the second mode for capturing and displaying the images, wherein the controller further includes a DSP module.

22. The computer of claim 21 wherein the DSP module further includes a compression module for compressing the captured images.