Abstract: An optical sensor, comprising: a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data; wherein the optical sensor outputs the motions to a control circuit via a complex pin among the pins in a first mode; wherein the optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode

Abstract: An optical navigation system comprising: a control circuit; and an optical sensor, comprising a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data. The optical sensor outputs the motions to the control circuit via a complex pin among the pins in a first mode. The optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode. The present invention also discloses an optical navigation system which shares a pin for receiving different types of data.

Abstract: An optical navigation system comprising: a control circuit; and an optical sensor, comprising a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data. The optical sensor outputs the motions to the control circuit via a complex pin among the pins in a first mode. The optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode. The present invention also discloses an optical navigation system which shares a pin for receiving different types of data.

Abstract: There is provided an optical positioning system including a detected surface, an optical sensor, a register and a processor. The detected surface has interleaved bright regions and dark regions arranged in a transverse direction. The optical sensor captures an image frame of the detected surface within a field of view thereof and using a shutter time, wherein the detected surface and the optical sensor have a relative movement in the transverse direction. The register records a type of a last passed edge. The processor calculates a first position using a first algorithm upon the recorded last passed edge being a bright-to-dark edge and the field of view being aligned with one of the dark regions, and calculates a second position using a second algorithm, different from the first algorithm, upon the recorded last passed edge being a dark-to-bright edge and the field of view being aligned with the same one of the dark regions.

Abstract: There is provided an operating method of an optical positioning system including: capturing an image frame of a detected surface, which has interleaved bright regions and dark regions, using a field of view and a shutter time of an optical sensor; counting a number of edge pairs between the bright regions and the dark regions that the field of view passes; calculating an average value of the image frame; calculating a ratio between the calculated average value and the shutter time; determining that the field of view is aligned with one of the dark regions when the ratio is smaller than a ratio threshold; and determining that the field of view is aligned with one of the bright regions when the ratio is larger than the ratio threshold.

Abstract: There is provided an operating method of an optical positioning system including: capturing an image frame of a detected surface, which has interleaved bright regions and dark regions, using a field of view and a shutter time of an optical sensor; counting a number of edge pairs between the bright regions and the dark regions that the field of view passes; calculating an average value of the image frame; calculating a ratio between the calculated average value and the shutter time; determining that the field of view is aligned with one of the dark regions when the ratio is smaller than a ratio threshold; and determining that the field of view is aligned with one of the bright regions when the ratio is larger than the ratio threshold.

Abstract: A method applied into an optical navigation device, used to communicate with a remote computer device based on a transmission interface, includes: capturing image frames according to a specific frame rate to obtain actual displacement data corresponding to the captured image frames, the specific frame rate being lower than a specific reporting rate specified by the transmission interface; generating predicted displacement data based on the actual displacement data; using the actual displacement data and the predicted displacement data to form resultant displacement data which is to be outputted; and outputting the resultant displacement data to the remote computer device based on the specific reporting rate specified by the transmission interface.

Abstract: There is provided an operating method of an optical positioning system including: capturing an image frame of a detected surface, which has interleaved bright regions and dark regions, using a field of view and a shutter time of an optical sensor counting a number of edge pairs between the bright regions and the dark regions that the field of view passes; calculating an average value of the image frame; calculating a ratio between the calculated average value and the shutter time; determining that the field of view is aligned with one of the dark regions when the ratio is smaller than a ratio threshold; and determining that the field of view is aligned with one of the bright regions when the ratio is larger than the ratio threshold.

Abstract: There is provided an operating method of an optical positioning system including: capturing an image frame of a detected surface, which has interleaved bright regions and dark regions, using a field of view and a shutter time of an optical sensor counting a number of edge pairs between the bright regions and the dark regions that the field of view passes; calculating an average value of the image frame; calculating a ratio between the calculated average value and the shutter time; determining that the field of view is aligned with one of the dark regions when the ratio is smaller than a ratio threshold; and determining that the field of view is aligned with one of the bright regions when the ratio is larger than the ratio threshold.

Abstract: An image parameter calculating method comprising: (a) transforming a spatial domain target image to a frequency domain target image; (b) multiplying the frequency domain target image with a frequency domain reference image to acquire a frequency domain multiplying result; and (c) calculating at least one peak location of the spatial domain target image according to the frequency domain multiplying result.

Abstract: An image parameter calculating method comprising: (a) transforming a spatial domain target image to a frequency domain target image; (b) multiplying the frequency domain target image with a frequency domain reference image to acquire a frequency domain multiplying result; and (c) calculating at least one peak location of the spatial domain target image according to the frequency domain multiplying result.

Abstract: A method for reporting motion information from an electronic device to a remote host device includes: using an optical sensor for sensing the motion information of the electronic device, the optical sensor being configured within the electronic device; and reporting a motion result of the electronic device to the remote host device based on the optical sensor when the electronic device has moved a predetermined distance each time.

Abstract: A method for reporting motion information from an electronic device to a remote host device includes: using an optical sensor for sensing the motion information of the electronic device, the optical sensor being configured within the electronic device; and reporting a motion result of the electronic device to the remote host device based on the optical sensor when the electronic device has moved a predetermined distance each time.

Abstract: Illumination spot alignment is performed by capturing an image by an image array. The image is evaluated to determine an illumination spot size and location. Coordinates identifying the illumination spot size and location are stored.

Abstract: A system and method for reducing jitter during an optical navigation operation operates to automatically switch the current resolution based on jitter-resolution correlation data.

Abstract: A system and method for tracking the x, y and z coordinates of a position of an input device in an interactive computer system is disclosed. An image sensor situated on the input device captures images of an electronic marker displayed on a display screen. As the position of the input device changes, the features of the electronic marker as captured by the image sensor also change. Images of the electronic marker captured during game play are compared to a calibration image of the electronic marker to determine current x, y and z coordinates of positions of the input device. The game display is updated to reflect the movements of the input device.

Abstract: A pointing device, such as an optical mouse, includes a light unit for illuminating a surface, a photodetector array configured to generate image information related to the illuminated surface, a navigation engine for generating navigation information at a target resolution of the pointing device, and a resolution input interface for controlling or adjusting the target resolution value of the pointing device via input of a resolution scaling ratio. The resolution input interface is configured for user input of the resolution scaling ratio, such that the target resolution of the pointing device can be readily adjusted, in real time, over a broad range of resolution values and in small increments. A technique for mitigating cursor jitter problems at high resolution values is also disclosed.

Abstract: A system and method for reducing jitter during an optical navigation operation operates to automatically switch the current resolution based on jitter-resolution correlation data.

Abstract: One embodiment in accordance with the invention relates to detecting a homogeneous surface. A first surface image is received. A plurality of values are generated by performing a plurality of auto correlations with the first surface image and a copy of the first surface image. The plurality of values includes a first peak value. A determination is made as to whether a normalized second peak value of the plurality of values satisfies a defined condition associated with a value. If so, a homogeneous surface image filter is utilized with a second surface image.

Abstract: An optical input device and method of optically sensing user inputs captures frames of image data using light reflected from an undersurface of a movable pad to estimate movements of the movable pad. Furthermore, the movable pad is automatically returned to an initial position when the movable pad is released.