Abstract: A CMOS image sensor includes a pixel array unit, a row selection unit, and a logic circuit. The pixel array unit is used for sensing an object. The pixel array unit includes M pixels and P multiplexers and each of the M pixels is electrically connected to one of the P multiplexers, wherein M is a positive integer and P is a positive integer smaller than M. The row selection unit and the logic circuit are electrically connected to the P multiplexers. The row selection unit is used for generating a row selection signal. The logic circuit is used for determining a sensing region corresponding to the object wherein the sensing region includes N of the M pixels. Furthermore, the logic circuit controls Q multiplexers, which are electrically connected to the N pixels, to transmit the row selection signal to the N pixels.

Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.

Abstract: An optical touch system comprises a first imaging device configured to be directed toward a side surface of a target on a touch surface and a processing device. The first imaging device sequentially generates a first picture having an image of the target and a second picture having an image of the target. The computing device is configured to calculate a first dimension of the target using the first picture and a second dimension of the target using the second picture, and to determine whether the target is formed by one object or two objects by the first and second dimensions.

Abstract: A handwriting system includes a first light source module, a second light source module, an image sensing device and a processing circuit. The first light source module is configured to provide a first light to illuminate an object on a plane. The second light source module is configured to provide a second light to illuminate the object on the plane, wherein the second light source module is disposed under the first light source module. The image sensing device is disposed above the plane and configured to capture an image of the object reflecting the first light only or an image of the object reflecting the first and the second lights both. The processing circuit is electrically connected to the image sensing device and configured to receive the image captured by the image sensing device and generate control information according to light-spot information in the captured image.

Abstract: An optical navigation chip cooperated with a light source for being used in a mouse is provided. The mouse transmits a mouse signal to a computer for navigation control. The optical navigation chip includes an optical sensing array and a circuitry. The optical sensing array is utilized for receiving a reflected light from a surface indicating features of the surface for generating a digital frame corresponding to intensity variation caused by the reflected light. The circuitry is coupled to the optical sensing array, and utilized for generating a digital displacement signal by monitoring the intensity variation of two different digital frames, wherein the two digital frames are captured by the optical sensing array at two different time. Additionally, the mouse suspends the mouse signal to the computer if the intensity variation is flat.

Abstract: An image system comprises a light source, an image sensing device, and a computing apparatus. The light source is configured to illuminate an object comprising at least one portion. The image sensing device is configured to generate a picture comprising an image. The image is produced by the object and comprises at least one part corresponding to the at least one portion of the object. The computing apparatus is configured to determine an intensity value representing the at least one part and to determine at least one distance between the at least one portion and the image sensing device using the intensity value and a dimension of the at least one part of the image.

Abstract: There is provided an image display including a first light source, a second light source and a modulation unit. The first light source has a plurality of first point lights arranged to form a first shape for generating a predetermined spectrum signal. The second light source has a plurality of second point lights arranged to form a second shape for generating a predetermined spectrum signal. The modulation unit is for simultaneously modulating the first point lights of the first light source with a first predetermined modulation frequency and for simultaneously modulating the second point lights of the second light source with a second predetermined modulation frequency to generate a modulated predetermined spectrum.

Abstract: There is provided a hybrid pointing device including an optical navigation module, a pointing module and a switching module. The optical navigation module is configured to sense gestures of at least one object operated by a user to activate commands associated with particular programs running on the host. The pointing module is configured to detect a movement between the hybrid pointing device and a working surface. The switching module is configured to active the optical navigation module or the pointing module according to a deformation of a touch plate.

Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.

Abstract: A method for fabricating a MEMS resonator is provided. A stacked main body including a silicon substrate, a plurality of metallic layers and an isolation layer is formed and has a first etching channel extending from the metallic layers into the silicon substrate. The isolation layer is filled in the first etching channel. The stacked main body also has a predetermined suspended portion. Subsequently, a portion of the isolation layer is removed so that a second etching channel is formed and the remained portion of the isolation layer covers an inner sidewall of the first etching channel. Afterwards, employing the isolation layer that covers the inner sidewall of the first etching channel as a mask, an isotropic etching process through the second etching channel is applied to the silicon substrate, thereby forming the MEMS resonator suspending above the silicon substrate. A micro electronic device is also provided.

Abstract: Disclosed are various embodiments of methods and devices for operating a processor or host controller in a mutual capacitance sensing device. Methods and devices for sorting motion reports provided to a host controller or other processor in a mutual capacitance sensing device, reporting touch points to a host controller or other processor in a mutual capacitance sensing device, improving noise robustness and navigation performance in a mutual capacitance sensing device, determining a touch area of a user's finger on a touch panel or touchpad of a mutual capacitance sensing device, and avoiding false wakeups and minimizing power consumption in a mutual capacitance sensing device having a touch panel or touchpad are described.