Abstract: A transceiver printed circuit board (PCB) includes an integrated circuit (IC) with at least two different functionality, a photodiode and a laser. The IC has a first side, a second side opposite to the first side, a third side connecting the first side and the second side, and a fourth side opposite to the third side. The photodiode and the laser are both located in a first space beside the first side. The functionality of a transimpedance amplifier, a laser driver, and a clock and data recovery is integrated into the IC.

Abstract: A transceiver printed circuit board (PCB) includes an integrated circuit (IC) with at least two different functionality, a photodiode and a laser. The IC has a first side, a second side opposite to the first side, a third side connecting the first side and the second side, and a fourth side opposite to the third side. The photodiode and the laser are both located in a first space beside the first side. The functionality of a transimpedance amplifier, a laser driver, and a clock and data recovery is integrated into the IC.

Abstract: A printed circuit board assembly comprises a printed circuit board (PCB) defining a mounting end and an opposite contacting end, a row of first pads on the mounting end, a row of second pads on the contacting end, and an edge connector on the contacting end electrically contacted with the second pads, and a high speed line module mounted on a top side of the PCB and including a group of conductive lines, the conductive lines extending parallel to each other over the plane of the PCB, each conductive line having two ends electrically connected to corresponding first and second pads, respectively.

Abstract: Disclosed herein are various embodiments of means and methods for reducing noise interference in a capacitive touchscreen system. Second noise signals related to first noise signals generated by an external noise source are provided to a touchscreen controller, which determines fundamental and harmonic frequencies associated with the first noise signals. In response to determining the fundamental and harmonic frequencies associated with the first noise signals, the touchscreen controller may shift the frequency at which drive signals generated thereby are provided to a capacitive touchscreen. As a result, undesired interference between the first noise signals and the drive signals is minimized or avoided.

Abstract: Disclosed herein are various embodiments of circuits and methods for capacitively coupling touchscreen electrode terminals to terminals of a flex circuit, printed circuit or printed circuit board, without physically attaching the touchscreen electrode terminals to the flex circuit, printed circuit or printed circuit board terminals by means of conventional electrical connection bonding materials or agents such as anisotropic conductive film or solder. The flex circuit, printed circuit or printed circuit board terminals are spaced apart from, or placed in physical contact with, corresponding ones of the touchscreen electrode terminals, but are not soldered or otherwise physically attached to the touchscreen electrode terminals by conventional electrical connection bonding materials or agents such as anisotropic conductive film or solder.

Abstract: Various embodiments of methods and devices are provided for a mutual capacitance touchscreen controller comprising a first on-chip low drop out regulator (LDO) configured to receive and regulate as a first input thereto an input supply voltage (VSUPPLY), and to provide as an output therefrom a first regulated output voltage (VDDA). A first comparator in the controller is configured to receive as first and second inputs thereto VSUPPLY and VDDA and to provide as an output therefrom a signal EN, EN being provided to the first LDO as a second input thereto. The first LDO is configured to operate in a first off mode and is turned off by signal EN when the difference between VSUPPLY and VDDA is less than a predetermined threshold.

Abstract: Images are acquired from the touchscreen or touch panel and processed to determine first characteristics corresponding to fingers, hands or hand portions placed thereon. If the first characteristics match stored second characteristics with a sufficient degree of similarity, the user is identified as an authorized or verified user and then permitted to operate or use the electronic device.

Abstract: Disclosed are various embodiments of a navigation input device, and methods, systems and components corresponding thereto. According to some embodiments, the navigation input device has a large depth of field associated therewith and employs time- and/or frequency-domain processing algorithms and techniques. The device is capable of providing accurate and reliable information regarding the (X,Y) position of the device on a navigation surface as it is moved laterally thereatop and thereacross, notwithstanding changes in a vertical position of the device that occur during navigation and that do not exceed the depth of field of an imaging lens incorporated therein. According to one embodiment, the navigation input device is a writing instrument that does not require the use of an underlying touch screen, touch pad or active backplane to accurately and reliably record successive (X,Y) positions of the writing device as it is moved across and atop an underlying writing medium.

Abstract: An optical navigation device includes an image sensor, a light source, and illumination optics. The image sensor generates images of a tracking surface. The image sensor has a field of view via imaging optics interposed between the image sensor and the tracking surface. The light source generates light to illuminate a portion of the tracking surface. The illumination optics are interposed between the light source and the tracking surface to direct the light from the light source toward the tracking surface. The illumination optics include an output surface with a primary region illuminated above a threshold intensity. The illumination optics are located relative to the tracking surface so that an image of the output surface excludes the primary region from the field of view of the image sensor.

Abstract: Disclosed herein are various embodiments of circuits and methods for capacitively coupling touchscreen electrode terminals to terminals of a flex circuit, printed circuit or printed circuit board, without physically attaching the touchscreen electrode terminals to the flex circuit, printed circuit or printed circuit board terminals by means of conventional electrical connection bonding materials or agents such as anisotropic conductive film or solder. The flex circuit, printed circuit or printed circuit board terminals are spaced apart from, or placed in physical contact with, corresponding ones of the touchscreen electrode terminals, but are not soldered or otherwise physically attached to the touchscreen electrode terminals by conventional electrical connection bonding materials or agents such as anisotropic conductive film or solder.

Abstract: Disclosed herein are various embodiments of means and methods for reducing noise interference in a capacitive touchscreen system. Second noise signals related to first noise signals generated by an external noise source are provided to a touchscreen controller, which determines fundamental and harmonic frequencies associated with the first noise signals. In response to determining the fundamental and harmonic frequencies associated with the first noise signals, the touchscreen controller may shift the frequency at which drive signals generated thereby are provided to a capacitive touchscreen. As a result, undesired interference between the first noise signals and the drive signals is minimized or avoided.

Abstract: An optical navigation input device with an offset imaging aperture. The optical navigation input device includes a light source, an illumination aperture structure, and an image sensor. The light source directs a light beam toward a substantially specular illumination surface. Scattered light reflects off of a surface reflection feature along a scattered light path which is offset from a specular reflection path. The illumination aperture structure at least partially defines an illumination aperture interposed between the light source and the illumination surface. The illumination aperture produces a diffraction pattern that includes a diffraction discontinuity which is substantially free from diffracted light within a sector area outside of the light beam. The image sensor is disposed within the scattered light path at a location corresponding to the diffraction discontinuity.

Abstract: An optical navigation device includes an image sensor, a light source, and illumination optics. The image sensor generates images of a tracking surface. The image sensor has a field of view via imaging optics interposed between the image sensor and the tracking surface. The light source generates light to illuminate a portion of the tracking surface. The illumination optics are interposed between the light source and the tracking surface to direct the light from the light source toward the tracking surface. The illumination optics include an output surface with a primary region illuminated above a threshold intensity. The illumination optics are located relative to the tracking surface so that an image of the output surface excludes the primary region from the field of view of the image sensor.

Abstract: A read-write assay system includes providing an assay device; and writing assay device information to the assay device for subsequent reading of the assay device information from the assay device; or performing an assay with the assay device and subsequent writing of the assay related information to the assay device or reading of assay related information from the assay device.

Abstract: Disclosed are various embodiments of a navigation input device, and methods, systems and components corresponding thereto. According to some embodiments, the navigation input device has a large depth of field associated therewith and employs time- and/or frequency-domain processing algorithms and techniques. The device is capable of providing accurate and reliable information regarding the (X,Y) position of the device on a navigation surface as it is moved laterally thereatop and thereacross, notwithstanding changes in a vertical position of the device that occur during navigation and that do not exceed the depth of field of an imaging lens incorporated therein. According to one embodiment, the navigation input device is a writing instrument that does not require the use of an underlying touch screen, touch pad or active backplane to accurately and reliably record successive (X,Y) positions of the writing device as it is moved across and atop an underlying writing medium such as paper, a pad or a display.

Abstract: An optical navigation input device with an offset imaging aperture. The optical navigation input device includes a light source, an illumination aperture structure, and an image sensor. The light source directs a light beam toward a substantially specular illumination surface. Scattered light reflects off of a surface reflection feature along a scattered light path which is offset from a specular reflection path. The illumination aperture structure at least partially defines an illumination aperture interposed between the light source and the illumination surface. The illumination aperture produces a diffraction pattern that includes a diffraction discontinuity which is substantially free from diffracted light within a sector area outside of the light beam. The image sensor is disposed within the scattered light path at a location corresponding to the diffraction discontinuity.

Abstract: An apparatus to facilitate image stabilization with adaptive shutter control is described. An embodiment of the apparatus includes an image sensor, a movement detector, and a shutter controller. The movement detector is coupled to the image sensor. The shutter controller is coupled to the movement detector. The image sensor is configured to obtain image data. The movement detector is configured to obtain movement measurement information during a shutter period having a predetermined duration. The shutter controller is configured to adjust the shutter period of a shutter based on the movement measurement information. The shutter controls the time the image sensor is responsive to light incident on the image sensor. Embodiments of the apparatus provide a smaller and less costly implementation for image stabilization.

Abstract: An imaging apparatus for producing a mosaic image of a scene, including: an imager operable to capture a plurality of images of the scene; a motion sensor coupled to the imager; a transformation processor electrically coupled to the imager and the motion sensor and a mosaic processor electrically coupled to the transformation processor. The motion sensor is adapted to determine a pitch parameter and a yaw parameter of the imager associated with each captured image of the scene. The transformation processor is adapted to transform each captured image into a mosaic coordinate system using the associated pitch parameter and yaw parameter of the imager. The mosaic processor is adapted to produce a mosaic image of the scene from the transformed images.

Abstract: An apparatus to facilitate image stabilization with user feedback is described. An embodiment of the apparatus includes an image sensor, a movement detector, and a digital processor. The image sensor acquires an image of a scene over an exposure period. The movement detector is coupled to the image sensor. The movement detector computes a movement measurement of the image sensor during the exposure period. The digital processor is coupled to the movement detector. The digital processor provides feedback to a user during the exposure period. The feedback is based on the movement measurement. Embodiments of the apparatus provide a simpler and less costly implementation for image stabilization.

Abstract: A current output of a drive signal, modulated between two current settings, is applied to a laser diode, e.g. VCSEL. The settings are selected such that laser diode's power output meets the average power and peak power limits of the eye safety standards. The drive signal having a duty cycle toggling between the two settings. The duty cycle is selected such that the average and peak power limits are met for the given upper current setting. The drive circuit may include an analog modulator or digital analog converter (DAC) for maintaining the lower and upper current settings. When the drive circuit is implemented as an integrated circuit, the DAC may be incorporated into the IC. The sensitivity of the DAC is selected to maintain the desired lower and upper current settings.