Pixart Imaging Incorporated

Pixart Imaging Incorporation, R.o.c.

Other

Pixart Imaging Incorporation

Visual Sensing Technology Co., Ltd.

Chih-Yen Wu

Ren-Hau Gu

Yao-Hsuan Lin

Tzu-Yu Chen

Ming-Tsan Kao

Ching-Chih Chen

Yen-Min Chang

Chia-Cheun Liang

Chien-Jung Huang

Chi-Yang Huang

Chien-Hung Wu

Wen-Yu Yang

Hsiang-Sheng Liu

Chen-Ta Ho

An electronic device including a plurality of micro-lenses, a light-limiting structure, a first light-transmitting structure, and a sensing element is provided. The plurality of micro-lenses are arranged in an array. The sensing element includes a plurality of sensing pixels. The sensing element, the first light-transmitting structure, the light-limiting structure, and the plurality of micro-lenses are sequentially stacked in a stacking direction. Each of the plurality of sensing pixels corresponds to at least two of the plurality of micro-lenses in the stacking direction.

Electronic device

The present invention discloses an identification system which includes an image sensor, a storage unit and a comparing unit. The image sensor captures a plurality of images of the motion trajectory generated by a user at different timings. The storage unit has stored motion vector information of a group of users including or not including the user generating the motion trajectory. The comparing unit compares the plurality of images with the motion vector information to identify the user. The present invention also provides an identification method.

User identification system and method for identifying user

An optical element fabrication method including following steps are provided. First, a micro-lens layer including a micro-lens and a first substrate is provided. Besides, a micro optical channel layer including a micro optical channel and a second substrate is provided. A first bonding process is performed to bond the micro-lens layer to the micro optical channel layer, wherein the micro-lens is corresponded to the micro optical channel in a direction that is perpendicular to the surface of the second substrate, and the first substrate of the micro-lens layer is removed later.

Optical element fabrication method and optical sensing device

An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.

Optical navigation method for dynamically adjusting size of image sensing region and related apparatus thereof

An optical navigating apparatus, which comprises: a light source, for illuminating a surface to generate an image; an image sensor, for catching pictures of the image; and a controller, for computing a first estimating speed of the optical navigating apparatus according to a first picture of the pictures and a second picture after the first picture. The controller controls at least one of parameters as following according to the first estimating speed: a non-illuminating frequency that the light source does not illuminate pictures after the second picture; a non-catching frequency that the image sensor does not catch pictures after the second picture; a computing frequency that the controller computes pictures after the second picture, which are caught by the image sensor; and a searching range for pictures after the second picture.

Optical navigating apparatus and computer readable media can perform optical navigating method

A hand-held pointing device includes a main body, a processing circuit, a light emitting device and two image sensing devices. The main body has a first surface and a second surface for lying on an operating surface. The two image sensing devices are disposed in the main body and configured to sense first and second images through first and second transparent areas thereof, respectively. The light emitting device, disposed in the main body, is configured to emit a light source through the second transparent area. The processing circuit is configured to determine and operate the hand-held pointing device in a remote controller mode or a mouse mode according to whether the first image contains an image of a reference light source and/or the second image contains an image of the operating surface reflecting the light source. An operation for a hand-held pointing device is also provided.

Hand-held pointing device and operation method thereof

A method of testing an image sensor having a plurality of sensing units includes: utilizing the image sensor to generate a plurality of sensing results respectively corresponding to a plurality of captured images, wherein each sensing result includes a plurality of sensing values respectively generated by the sensing units; and generating a testing result which indicates a performance of the image sensor according to changing of the sensing results.

Method of testing image sensor and related apparatus thereof

A lift detection method for an optical mouse and an optical mouse with a lift detection function are presented. An average brightness value of pixels captured by part of sensing units of an image sensor is computed after each scanning, and two average brightness values obtained from two adjacent times of scanning are compared, to determine a brightness change of the pixels in each scanning, thereby acquiring a placing state of the optical mouse accordingly.

Lift detection method for optical mouse and optical mouse with lift detection function

Optical touchpad includes a light source for emitting light of a specific wavelength, a specific-light sensing array for sensing the specific light after being reflected by an instruction object for accordingly generating a specific-light sensing image, a proximity detector for determining an instruction distance between the instruction object and the optical touchpad according to the specific-light sensing image, and a motion detector for determining path of the instruction object and then outputting a motion signal according to the specific-light sensing image. When the instruction distance is greater than a predetermined value, the motion detector is turned off.

Optical touchpad with power saving functions based on detected light

A communication method applied to a transmission port between an access device and a control device includes: encoding a specific command to generate mode data; generating output data according to content of the mode data and content of command data corresponding to the specific command; and transmitting the output data from one of the access device and control device to the other via the transmission port. The other device of the access device and control device is used for receiving the output data and decoding the mode data of the output data to generate a decoding result, and selecting the specific command from a plurality of operational commands for executing a communication function corresponding to the specific command according to the decoding result.

Communication method applied to transmission port between access device and control device for performing multiple operational command functions and related access device thereof

A method for detecting an object and a touchable device are presented, which is capable of detecting an object having a fingerprint feature on an operation interface of the touchable device. An image sensor is used for acquiring acquiring an image on the operation interface, and the acquired image is converted into a signal denoted in a frequency domain by using a frequency conversion function. Signals at a medium-high frequency (MHF) signal region among the signals of the frequency domain are analyzed, so as to generate a first signal and a second signal according to a distribution of the signals of the frequency domain. The first signal indicates existence of the object on the operation interface, and the second signal indicates inexistence of the object on the operation interface.

Method for detecting object on an operation interface of a touchable device and touchable device using the same

The present invention discloses an optical sensor. The optical sensor comprises a sensor for sensing a reflected light, an image capture device coupling with the sensor for reading the reflected light and calculating an average light intensity of the reflected light, a controller coupling with the image capture device for outputting a control signal based on the average light intensity, a driver coupling with the controller for receiving the control signal to output a drive current based on the control signal, and a light source coupling with the driver for receiving the drive current to generate a light.

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Hsin-Chu, Taiwan

Chih-Yen Wu