Abstract: A writing apparatus with electronic soft brush pen is disclosed herein. The writing apparatus includes an electronic soft pen brush, an all point addressable (APA) touch panel, a scanning circuit and a controlling circuit. The electronic soft pen brush is configured to generate a plurality of touch points on the touch panel simultaneously. The scanning circuit is configured to detect the touch positions of the touch points simultaneously. The controlling circuit is configured to determine the touch region, the touch area and size and generate an output signal in accordance with the touch region, the touch area and the touch positions.

Abstract: A scrolling electronic whiteboard is provided, including a thin-film antenna board, at least an electromagnetic signal transmitter, a main control board, and a scrolling mechanism cassette. The scrolling mechanism cassette is for providing the housing of the thin-film antenna board to scroll and extend by pulling. The thin-film antenna board can be entirely scrolled and housed inside the scrolling mechanism cassette. The electromagnetic signal transmitter includes a resonant circuit for transmitting an electromagnetic signal of a specific frequency to determine the length of the thin-film antenna board being pulled outside of the scrolling mechanism cassette. The main control board is for receiving the antenna loop signals of the thin-film antenna board, and the electromagnetic signals of each electromagnetic signal transmitters.

Abstract: An embodiment of the present invention provides a stylus as an inputting device of a handwriting system. The stylus comprises a jog ball, a signal emitting circuit for emitting electromagnetic waves, an resonant circuit for determining the frequencies of the emitting electromagnetic waves, and a button and ball circuit that comprises a pair of sensing units respectively arranged at up and down side of the jog ball for tracking the rolling of the jog ball.

Abstract: The present invention discloses an electromagnetic induction handwriting system and its single side coordinate determining method for determining a coordinate of a stylus on a handwriting apparatus. The coordinate is computed by a first voltage, a second voltage, and a third voltage, where the first voltage equals the maximum detection voltage, the second voltage and the third voltage are obtained from two antennas, and both of the two antennas are arranged at the same side of the antenna that induces the maximum detection voltage.

Abstract: The present invention discloses a space-bound-free tablet and its coordinate determining circuit for determining a coordinate of a stylus pen. The coordinate is computed by the coordinate determining circuit in which first voltage, a second voltage, and a third voltage is obtained, where the first voltage equals the maximum detection voltage, the second voltage and third voltage are obtained from two antennas, and both of the two antennas are at the same side of the antenna that induces the maximum detection voltage.

Abstract: An electromagnetic manuscript input apparatus and a method thereof are provided for providing a manuscript input function. The electromagnetic manuscript input apparatus includes an electromagnetic pen and a digitizer. The electromagnetic pen includes a winding, a capacitor, and a circuit board. The electromagnetic pen is a pen shaped input apparatus capable of emitting electromagnetic waves, which can be either an active type having a power supply or a passive type having no power supply. The digitizer includes a plurality of antennas and windings orthogonally distributed for inducing the electromagnetic waves of the electromagnetic pen. According to the electromagnetic manuscript input method, a controller of the digitizer is used to perform a whole region scanning process to find out a position of a winding having a maximum induction potential, and further find out positions of two immediately adjacent windings.

Abstract: A scrolling electronic whiteboard is provided, including a thin-film antenna board, at least an electromagnetic signal transmitter, a main control board, and a scrolling mechanism cassette. The scrolling mechanism cassette is for providing the housing of the thin-film antenna board to scroll and extend by pulling. The thin-film antenna board can be entirely scrolled and housed inside the scrolling mechanism cassette. The electromagnetic signal transmitter includes a resonant circuit for transmitting an electromagnetic signal of specific frequency to determine the length of the thin-film antenna board being pulled outside of the scrolling mechanism cassette. The main control board is for receiving the antenna loop signals of thin-film antenna board, and the electromagnetic signals of each electromagnetic signal transmitters.

Abstract: A large-sized electromagnetic digital broad with segmented frame antenna is provided, including at least an antenna turning board, at least an antenna multiplexer board, a physical antenna web, and a control board. The length of the antenna turning board is he same as the length of the antenna multiplexer board. The antenna turning boards and the antenna multiplexer boards are arranged to form a segmented frame antenna. The length and the width of the assembled large-sized digital board are a multiple of the length of the antenna turning board. Therefore, the size of the assembled digital board is not limited to any specific size, and is not limited by the size of the manufacturing machines.

Abstract: A digital system for mixing handwriting with an image is provided. The handwriting data is transmitted into the microprocessor of the image processing system, and then the microprocessor marks handwriting with a specific color and superimposes it on the image according to the coordinates and the degree of width of the handwriting, so as to form a new mixed image.

Abstract: The system with cordless pressure-sensitivity and electromagnetic-induction of the present invention comprises the first wireless apparatus and the second wireless apparatus. The first wireless apparatus comprises the first sub-circuit for emitting and receiving an electromagnetic wave with a specific frequency, and the second wireless apparatus comprises the second sub-circuit for emitting and receiving an electromagnetic wave with a specific frequency. The first sub-circuit comprises: an inductance coil, a rectifier that is coupled with the inductance coil and a charge sub-circuit. The second sub-circuit comprises: a sub-circuit for generating a specific frequency that is coupled with the control sub-circuit and a two-way gate control sub-circuit.

Abstract: A digitizer tablet comprises a plurality of physical antenna loops distributed along the X- and Y-directions of two-dimensional Cartesian coordinates (X, Y) on the digitizer tablet, wherein each physical antenna loop comprises a plurality of logical sections. For the logical sections of each of the physical antenna loops distributed in the same direction, the adjacent logical sections of the logical sections belong to different physical antenna loops.

Abstract: In a feedback peak detector fitted wireless handwriting tablet, the feedback peak detector comprises a feedback comparator buffer unit, a peak detection switch unit, a fast charge path unit, a peak signal holding unit, and a fast discharge unit. The feedback peak detector is designed with a light load capable of stabilizing peak signals and fast charging/discharging a capacitor to ensure the correct calculation of coordinates for keeping handwriting at a normal and stable speed.

Abstract: A 4-4 distribution antenna layout and a five-stage coordinate positioning method of electromagnetic induction systems being provided by the present invention is disclosed. The 4-4 distribution antenna layout of the present invention divides antenna circuitries into x-axis and y-axis groups. The antenna circuitries within the same group are in equal distance displacements and in the same direction, which further comprise a plurality of antenna loops. The formation of each antenna loop comprises a dense multiple duplicate self-looping method. Moreover, the five-stage coordinate positioning method of electromagnetic induction systems comprising, first, carrying out a first procedure to confirm any signal with voltage amplitude greater than a standard minimum signal recognition value. Second, carrying out a second procedure to confirm signal existence of the previous scan as well as to confirm the nearest antenna loop to the transmission source. Third, carrying out a third procedure to obtain coordinate values.

Abstract: An electromagnetic tablet integrated type monitor filter is disclosed in this invention. By employing the electromagnetic tablet integrated type monitor filter according to this present invention, the user can directly perform the input of hand-writing, hand-writing drawing, and the like functions. Therefore, the tablet integrated type monitor filter can not only save working space, but also provide a way for hand-writing input, that is more similar to the writing habits of the users.

Abstract: A 4-4 distribution antenna layout and a five-stage coordinate positioning method of electromagnetic induction systems being provided by the present invention is disclosed. The 4-4 distribution antenna layout of the present invention divides antenna circuitries into x-axis and y-axis groups. The antenna circuitries within the same group are in equal distance displacements and in the same direction, which further comprise a plurality of antenna loops. The formation of each antenna loop comprises a dense multiple duplicate self-looping method. Moreover, the five-stage coordinate positioning method of electromagnetic induction systems comprising, first, carrying out a first procedure to confirm any signal with voltage amplitude greater than a standard minimum signal recognition value. Second, carrying out a second procedure to confirm signal existence of the previous scan as well as to confirm the nearest antenna loop to the transmission source. Third, carrying out a third procedure to obtain coordinate values.

Abstract: A computer handwriting tablet equipped with an adhesive writable pad is provided with a layer of adhesive pad structure on a writing zone to show off the handwriting locus of a handwriting stylus on the tablet. The layer of adhesive pad structure consists of an adhesive pad layer, a translucent layer, and an anti-scratch protective layer. The adhesive pad layer is formed by laying a sticky film on a plate in dark for covering the top face of the writing zone of the computer handwriting tablet. The translucent layer is a white-foggy plastic sheet for shielding the top face of the adhesive pad layer and the anti-scratch protective layer is in turn placed on the translucent layer for sheltering and protecting the same against scratching.

Abstract: If a user wants to add handwriting, the processor of the image processing system switches on the apparatus with a cordless pressure-sensitivity and electromagnetic-induction, so as to catch the coordinates and degree of width of handwriting by a scanning antenna. Subsequently, the handwriting data is transmitted into the microprocessor of the image processing system, and then the microprocessor marks handwriting with a specific color and superimposes it on the image according to the coordinates and the degree of width of the handwriting, so as to form a new mixed image.

Abstract: The system with cordless pressure-sensitivity and electromagnetic-induction of the present invention comprises the first wireless apparatus and the second wireless apparatus. The first wireless apparatus comprises the first sub-circuit for emitting and receiving an electromagnetic wave with a specific frequency, and the second wireless apparatus comprises the second sub-circuit for emitting and receiving an electromagnetic wave with a specific frequency. The first sub-circuit comprises: an inductance coil, a rectifier that is coupled with the inductance coil and a charge sub-circuit. The second sub-circuit comprises: a sub-circuit for generating a specific frequency that is coupled with the control sub-circuit and a two-way gate control sub-circuit.

Abstract: In a feedback peak detector fitted wireless handwriting tablet, the feedback peak detector comprises a feedback comparator buffer unit, a peak detection switch unit, a fast charge path unit, a peak signal holding unit, and a fast discharge unit. The feedback peak detector is designed with a light load capable of stabilizing peak signals and fast charging/discharging a capacitor to ensure the correct calculation of coordinates for keeping handwriting at a normal and stable speed.

Abstract: A locus-recordable portable handwriting device for recording locus of a wireless stylus is provided with function of memory-page scrolling, locus color switching, data clearance, establishment of a built-in power source, etc. The handwriting device comprises a microprocessor, a memory, a power control unit, a display unit, a universal serial bus (USB), a data clearance switch, a memory-page code switching switch, and a locus-color switching switch.