Rajeev A Badyal

6631218, Oct 7, 2003

Jan 9, 2001

09/756817

Rajeev Badyal - Fort Collins CO
Derek L. Knee - Fort Collins CO
Mark Alan Anderson - Fort Collins CO
Brian James Misek - Fort Collins CO

Agilent Technologies, Inc. - Palo Alto CA
Hewlett Packard, Inc. - Palo Alto CA

G06K 954

382307, 382209, 382278, 257265, 257334

A CMOS digital integrated circuit digitally captures an image, generates a result surface on which a minima resides, and compares the result surfaces. The correlation of the result surfaces represents a best fit image displacement between image frames.

7227532, Jun 5, 2007

Nov 28, 2003

10/722596

David D. Bohn - Fort Collins CO, US
Thomas C. Oliver - Windsor CO, US
Rajeev Badyal - Fort Collins CO, US

Microsoft Corporation - Redmond WA

G09G 5/08

345163, 345156, 345157, 463 46, 353 48, D14402

A computer input device, such as an electronic mouse, having an optical projection system. The optical projection system is configured to project an image onto a housing wall surface, which may be on a side, top, or rear of the device. In one arrangement the optical projection system includes a light source, an image forming light blocker and optics. The optics may be collimating or non-collimating. In another arrangement the optical projection system may include an active LED matrix display. This system enables a use to personalize and/or customize his or her computer input device. Additionally, it permits the device to serve desirable notification functions if one or more of various events have occurred in a computer application being run on the computer. An example of event for notification includes the receipt of a message in a communications program such as an e-mail message.

7289104, Oct 30, 2007

Nov 28, 2003

10/722418

David D. Bohn - Fort Collins CO, US
Thomas C. Oliver - Windsor CO, US
Rajeev Badyal - Fort Collins CO, US

Microsoft Corporation - Redmond WA

G09G 5/00

345156, 345157, 345163, 345164, 345165, 345166

A computer input device, such as an electronic mouse, having an optical projection system. The optical projection system is configured to project an image onto a supporting surface upon which the device rests. In one arrangement the optical projection system includes a light source, an image forming light blocker and optics. The optics may be collimating or non-collimating. In another arrangement the optical projection system may include an active LED matrix display. This system enables a use to personalize and/or customize his or her computer input device. Additionally, it permits the device to serve desirable notification functions if one or more of various events have occurred in a computer application being run on the computer. An example of event for notification includes the receipt of a message in a communications program such as an e-mail message.

7488926, Feb 10, 2009

Jan 6, 2006

11/326354

Derek L. Knee - Fort Collins CO, US
Rajeev Badyal - Sammamish WA, US

Microsoft Corporation - Redmond WA

H01L 27/00

2502081, 2502141, 348303, 348304

Multiple pixels within a pixel array share a common output line. Each output line from the array is connected to one or more storage elements. Each of the storage elements receives a counter signal corresponding to levels of a reference voltage within each of the pixels. When an output line signal reaches a predetermined value, a storage element receiving that predetermined value latches the current value of the counter signal. Outputs from pixels of multiple columns in the array may be time-multiplexed onto the output lines or may form a serial scan chain connected to a single output line.

7656395, Feb 2, 2010

Jul 15, 2004

10/891484

Jeremiah Pope - Kirkland WA, US
Rajeev Badyal - Fort Collins CO, US
Glen Larsen - Issaquah WA, US
Thomas C. Oliver - Windsor CO, US
Randall T. Crane - Fort Collins CO, US

Microsoft Corporation - Redmond WA

G06F 3/033

345179, 345163

A method, apparatus, and system for tracking movement of a device are described. The method includes steps of implementing a first tracking subsystem for tracking positions of a device against a surface, determining whether to implement a second tracking subsystem for tracking positions of the device against the surface, capturing data corresponding to a location on the surface, and determining a position of the device against the surface based on the captured data. The position of the device can then be transmitted to a host computer and used in an application program. The first and second tracking subsystems may be a relative and an absolute tracking subsystem respectively.

20010009414, Jul 26, 2001

Mar 6, 2001

09/800160

Rajeev Badyal - Fort Collins CO, US
Donald Morris - Fort Collins CO, US

G09G005/08

345/163000

Movement of a mouse or joy stick is detected by optically tracking with a navigation sensor the change in position of the micro-texture on a ball instead of using the ball to actuate shaft encoders. The interior of the mouse or joy stick is an optically controlled environment where the external ambient illumination is excluded, the angle, and intensity of a desired illumination is established once, and the only surface to be imaged and tracked is a part of the ball. As the ball rotates a portion of the old image passes from view as a new portion emerges. Consecutive images are represented internally within the optical tracking mechanism as arrays of pixels, and the tracking mechanism tolerates the disappearance of some pixels along one side of the field of view whilst other pixel appear from the other side of the field of view. Pattern matching of unchanged pixels determines movement. The pattern described by the new pixels need not have any relationship whatsoever to that represented by the disappearing pixels. That is, the ball need not have either a known or a precision pattern upon its surface; the surface can have an arbitrary micro-texture. Any wear and tear to the ball, or dirt that gets on it, simply appears as micro-texture to the optical tracking mechanism. Since the micro-texture is expected to be arbitrary anyway, these phenomenon are of little concern, so long as they do not mechanically interfere with the motion of the ball.

20070103439, May 10, 2007

Dec 21, 2006

11/614958

Gary Gordon - Saratoga CA, US
Derek Knee - Ft. Collins CO, US
Rajeev Badyal - Fort Collins CO, US
Jason Hartlove - , US

G09G 5/08

345163000

An optical mouse images as an array of pixels the spatial features of generally any micro textured or micro detailed work surface below the mouse. The photo detector responses are digitized and stored as a frame into memory. Motion produces successive frames of translated patterns of pixel information, which are compared by autocorrelation to ascertain the direction and amount of movement. A hold feature suspends the production of movement signals to the computer, allowing the mouse to be physically relocated on the work surface without disturbing the position on the screen of the pointer. This may be needed if the operator runs out of room to physically move the mouse further, but the screen pointer still needs to go further. The hold feature may be implemented with an actual button, a separate proximity detector or by detecting the presence of a characteristic condition in the digitized data, such as loss of correlation or velocity in excess of a selected limit. A convenient place for an actual hold button is along the sides of the mouse near the bottom, where the thumb and the opposing ring finger grip the mouse. The gripping force used to lift the mouse engages the bold function. Hold may incorporate a brief delay upon either the release of the hold button, detection of proper proximity or the return of reasonable digitized values. During that delay any illumination control or AGC servo loops stabilize. Anew reference frame is taken prior to the resumption of motion detection.

20130249895, Sep 26, 2013

Mar 23, 2012

13/428879

William J. Westerinen - Issaquah WA, US
Steven John Robbins - Bellevue WA, US
Rajeev Badyal - Sammamish WA, US
Rod G. Fleck - Bellevue WA, US

MICROSOFT CORPORATION - Redmond WA

G06T 1/00
G06T 15/00

345419, 345418

Light guide display and field of view techniques are described. In one or more implementations, an apparatus includes one or more modules implemented at least partially in hardware to configure a user interface and a display device communicatively coupled to the one or more modules to output the user interface to be viewable by a user within a range of distances from the display device such that closer distances within the range permit the user to have an increased field of view in comparison with distances within the range that are further away from the user.