A learning support system includes: an electronic pen, a writing medium position instruction tool, a position detection apparatus, and a display apparatus. The electronic pen is capable of recording handwriting and transmitting a position instruction signal. The position detection apparatus determines a position of a note provided with the writing medium position instruction tool on a position detection sensor based on a placement position instruction signal from the writing medium position instruction tool, converts coordinates of coordinate information corresponding to handwriting recorded on the note by the electronic pen, and displays an image corresponding to the handwriting recorded on the note on a display terminal and a teacher terminal in a mode recorded on the note. The learning support system enables an educator to determine a situation of a learner to contribute to an increase effectiveness of learning.

A sensor device includes an image sensing array, a frame buffer, a first read line, a second read line and an energy accumulator. The image sensing array is configured to sense reflected light from a working surface and includes a plurality of sensing pixels and a plurality of self-powered pixels. The sensing pixels respectively output image data according to the sensed reflected light. The self-powered pixels respectively output photocurrent according to the sensed reflected light. The first read line is coupled between the sensing pixels and the frame buffer. The second read line is coupled between the self-powered pixels and the frame buffer. The energy accumulator stores electrical energy of the photocurrent via a charge path between the self-powered pixels and the energy accumulator.

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.

An optical detection device is applied to an optical finger navigation apparatus and suitable for a variety of appearance demands in order to simplify product qualification procedure. The optical detection device includes a substrate, a housing, an optical sensor and a cover. The housing is disposed on the substrate and comprising a first aperture. The optical sensor is disposed on the substrate and adapted to receive an optical signal through the first aperture. The cover is disposed on the housing to cover the first aperture. The cover has a first surface and a second surface opposite to each other. The first surface with a contour matched with a shape of the housing is attached to the housing, and the second surface with a contour manufactured for a predefined appearance demand does not affect conjunction between the housing and the cover.

Aspects of the present invention relate to external user interfaces used in connection with head worn computers (HWC).

Systems and methods are disclosed for a smart mouse that may include transmitting, by the mechanical switch of the smart mouse, a signal to a microcontroller unit of the smart mouse in response to a movement of the smart mouse caused by a user, the movement causing the mechanical switch to be in a closed position, the signal indicating that the mechanical switch is in the closed position; receiving, by the microcontroller unit, the signal indicating that the mechanical switch is in the closed position; and in response to receiving the signal: causing, by a power switch of the smart mouse, at least one battery of the smart mouse to provide power to an optical unit of the smart mouse, the provided power causing the optical unit to be in an on state, the on state of the optical unit causing the smart mouse to be electrically enabled for use.

A position detection device includes a communication circuit which, in operation, receives, from a stylus including a built-in acceleration sensor, acceleration information detected by the acceleration sensor, and a controller which, in operation, detects a first position indicating a position of the stylus on a touch surface and a second position indicating a position of a finger on the touch surface, and outputs the first position and the second position that have been detected. The controller controls the output of the second position based on the acceleration information received by the communication circuit.

Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith.

Aspects of the present invention relate to external user interfaces used in connection with head worn computers (HWC).

A smart touch pad device includes: a main body unit; a touch pad unit that is disposed on the main body unit to recognize a touch signal and a motion signal generated by contact of a user; a mouse unit that recognizes an operation signal generated by movement of the main body unit; a controller that extracts movement information from a touch signal or an operation signal or extract motion information that can perform a predetermined function from a touch signal; and a transceiver unit that transmits/receives movement information and motion information to/from a computer or a mobile communication device.