Avago Technologies Ecbu IP (singapore) Pte. Ltd.

Avago Technologies General IP (singapore) Pte. Ltd.

Avago Technologies General IP Pte, Ltd.

Avago Technologies Ecbu IP Pte. Ltd.

Avago Technologies Fiber IP Pte Ltd.

Boon How Kok

Ming Yong Mau

Wee Sin Tan

Lye Hock Bernard Chan

Ban Kuan Koay

Beng Chye Lye

Sze Yin Lee

Chiang Mei Teo

Fook Main Heng

Angeline Saw Khoon Khoo

Lay Cheng Jessie Lim

Chong Pin Jonathan Teoh

Qing Xing Chen

Soon Lee Tan

Embodiments of method and systems are disclosed. An embodiment of a method for optical navigation involves generating light at a light source, directing the light to a navigation surface, detecting light reflected from the navigation surface toward a sensor array, and generating movement information, which is indicative of movement of the navigation surface relative to the sensor array, in response to the detected light. Generating the movement information involves determining the speed of the movement, comparing the speed of the movement to a movement threshold, selecting a processing algorithm from a plurality of processing algorithms in response to the comparison, and processing the movement information according to the selected processing algorithm. In an embodiment, the processing algorithms include an adaptive navigation algorithm and a sensor resolution adjustment algorithm.

Optical navigation utilizing speed based algorithm selection

A user device is disclosed which includes a touch input and a keypad input. The user device is configured to operate in a gesture capture mode as well as a navigation mode. In the navigation mode, the user interfaces with the touch input to move a cursor or similar selection tool within the user output. In the gesture capture mode, the user interfaces with the touch input to provide gesture data that is translated into key code output having a similar or identical format to outputs of the keypad.

Translation of directional input to gesture

A user input device to generate a shutter threshold adaptive to ambient light conditions. The user input device includes a sensor array, a shutter controller, and a threshold generator. The sensor array obtains image data in response to light incident on the sensor array. The shutter controller is coupled to the sensor array. The shutter controller controls a shutter time during which the sensor array is responsive to the light incident on the sensor array according to a shutter value. The threshold generator is coupled to the shutter controller. The threshold generator dynamically generates a shutter threshold corresponding to the shutter value. The shutter threshold defines a transition of a finger-on/off state.

User input device with dynamic ambient light calibration

A system and method for selectively setting an optical navigation resolution utilizes a comparison of a comparison displacement value to a threshold value to set the optical navigation resolution to an effective resolution selected from a plurality of effective resolutions. The comparison displacement value is based on at least one of a first displacement value in a first direction and a second displacement value in a second direction, which were derived for estimating motion.

System and method for selectively setting optical navigation resolution

An optical navigation device that regulates the brightness of an adjustable light source, and a method thereof, are described. Light from the light source is emitted onto a surface and reflected from the surface to a sensor. The light received by the sensor is used to measure movement of the optical navigation device relative to the surface. A light-sensitive device also receives light from the light source. The brightness of the light source can be adjusted according to the amount of light received at the light-sensitive device.

Regulating a light source in an optical navigation device

A system and method of ambient light detection with digitized output. A light sensitive device is coupled to electronic circuitry for receiving an output of the light sensitive device corresponding to a level of ambient light. The electronic circuitry compares the output to a threshold level. The threshold level corresponds to a desired level of light. The electronic circuitry for provides an output signal indicative of said desired level of light.

System and method for converting ambient light energy into a digitized electrical output signal for controlling display and keypad illumination on a battery powered system

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Penang, Malaysia

Boon How Kok