Abstract: Various systems and methods for air gesture-based composition and instruction systems are described herein. A composition system for composing gesture-based performances may receive an indication of an air gesture performed by a user; reference a mapping of air gestures to air gesture notations to identify an air gesture notation corresponding to the air gesture; and store an indication of the air gesture notation in a memory of the computerized composition system. Another system used for instruction may present a plurality of air gesture notations in a musical arrangement; receive an indication of an air gesture performed by a user; reference a mapping of air gestures to air gesture notations to identify an air gesture notation corresponding to the air gesture; and guide the user through the musical arrangement by sequentially highlighting the air gesture notations in the musical arrangement based on the mapping of air gestures to air gesture notations.

Abstract: A micro touch pen structure includes a casing unit, a circuit unit, a first electromagnetic unit, a pen core unit, a second electromagnetic unit and an elastic unit. The circuit unit is disposed inside the pen-shaped casing structure. The first electromagnetic unit includes a first hollow electromagnetic body inside the pen-shaped casing structure and an electromagnetic coil wound around the first hollow electromagnetic body and electrically connected to the circuit unit. The pen core unit includes a first movable portion passing through the first hollow electromagnetic body, a second movable portion partially exposed from the pen-shaped casing structure, and a stop portion connected between the first and the second movable portions. The second electromagnetic unit includes a second hollowing electromagnetic body fixed inside the pen-shaped casing structure and disposed around the first movable portion. The elastic unit is disposed between the first movable portion and a fixed structure.

Abstract: Systems and methods are provided that may employ remote system mouse pointer position feedback from video/graphics circuitry (e.g., video adapter hardware such as graphics card, video card, etc.) of a remote information handling system to manage a remote mouse pointer based on local mouse position input received from a user interface of local information handling system that is communicatively coupled to the remote information handling system across a wired or wireless network, e.g., to synchronize a remote mouse pointer with a local mouse pointer that is manipulated by a local user of a local information handling system or to implement a single cursor mode for the remote mouse pointer.

Abstract: The invention disclosed is a pressure sensor, comprising: a pressure sensing plate and a strain sensing unit which are arranged in a stacked manner, wherein the thickness of the pressure sensing plate is 0.2 3 mm, and the material of the pressure sensing plate is an elastic material with a Young's modulus not greater than 120 GPa. Also disclosed is a display apparatus, comprising a panel, a pressure sensing plate and a strain sensing unit which are arranged in a stacked manner in sequence, wherein the thickness of the pressure sensing plate is 0.2 3 mm, and the material of the pressure sensing plate is an elastic material with a Young's modulus not greater than 120 GPa. Also disclosed is an electronic device comprising the pressure sensor, and an electronic device comprising the display apparatus.

Abstract: In an image display system including a pen and a projection-type image display device having an interactive function, attributes such as a color and a thickness of a line or a figure to be drawn can be more flexibly switched at a lower cost. According to a typical embodiment, a pen-shaped pointing tool has a light emitting portion which emits non-visible light with a predetermined wavelength. The projection-type image display device has an interactive function unit which, from image data captured by a sensor performing image-capturing based on reflection light of the non-visible light with the predetermined wavelength reflected on the screen, recognizes a position of and a content of a light emitting pattern emitted from the pointing tool onto the screen, and executes process contents which are different from one another, based on the recognized position of and content of the light emitting pattern.

Abstract: A data transmission method may include receiving identification (ID) information from a data transmission device. The method may also include receiving encoded security information from the data transmission device. The method may include verifying validity of the ID information by decoding the encoded security information. The encoding and decoding of the security information may be performed using a one-time password (OTP) code.

Abstract: A position indicator is provided, which includes a pressure sensor configured to detect a pressure applied to a tip of the position indicator. The position indicator further includes a storage configured to store the pressure as one type of digital data and to store at least one other type of digital data. The position indicator also includes a receiver configured to receive a command signal transmitted from a position sensor, and a control circuit configured to select one or more types of digital data in the storage based on the command signal. The position indicator includes a transmitter configured to transmit the selected one or more types of digital data to the position sensor.

Abstract: A position indicator is provided, which includes a pressure sensor configured to detect a pressure applied to a tip of the position indicator. The position indicator further includes a storage configured to store the pressure as one type of digital data and to store at least one other type of digital data. The position indicator also includes a receiver configured to receive a command signal transmitted from a position sensor, and a control circuit configured to select one or more types of digital data in the storage based on the command signal. The position indicator includes a transmitter configured to transmit the selected one or more types of digital data to the position sensor.

Abstract: An electronic assembly including an electronic device and a stylus is provided. The electronic device includes a housing having a receiving groove and an opening, the opening communicating with the receiving groove, and a first connecting element disposed around the opening. The stylus includes a sleeve and a pen rod. The sleeve has a second connecting element and corresponds to the receiving groove. The second connecting element is combined with the first connecting element to fix the sleeve to the housing. The pen rod is slidably disposed in the sleeve and has a first end and a second end opposite to each other, and a third connecting element located at the first end.

Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.

Abstract: The present invention provides a stylus for providing a tilt angle and an axial direction of a stylus body, including: a first electrode at a tip of the stylus; a second electrode surrounding the first electrode, wherein the first electrode and the second electrode are not electrically coupled; and a control module connected to the first electrode and the second electrode, wherein the control module is configured to have the first electrode emitting a first-time-period electrical signal and the second electrode coupled to a direct current voltage during a first time period, the control module is further configured to have the first electrode emitting a second-time-period electrical signal and the second electrode floated during a second time period.

Abstract: A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes.

Abstract: A position indicator includes a capacitor having a capacitance that changes in correspondence to a force applied to one end part of a housing. The capacitor is configured by a pressure detecting chip that includes a first electrode and a second electrode disposed opposite to the first electrode with a predetermined distance defined therebetween to have capacitance Cv formed between the first electrode and the second electrode. The capacitance Cv changes when the force applied to the one end part of the housing is transmitted to the first electrode to thereby change a relationship (e.g., the distance) between the two electrodes. A pressure transmitting member having predetermined elasticity is disposed on the first electrode such that the force applied to the one end part of the housing is transmitted to the first electrode of the semiconductor element via the pressure transmitting member.

Abstract: A stylus includes a stylus housing formed with a plurality of slots along a portion of the stylus that is gripped when writing with the stylus, a plurality of tabs located in the housing that can protrude through the plurality of slots and an actuator that actuates protrusion and receding of the plurality of tabs through the plurality of slots. Protrusion of the plurality the tabs through the plurality of slots increases a grip diameter of the stylus housing.

Abstract: The present disclosure relates to an accessory detachably coupled to an electronic device, the electronic device, and a method of processing an input in the electronic device. The accessory includes a body part located on at least one surface of the electronic device when the accessory is attached to the electronic device, an opening into which a part of a pen is inserted, a depression into which a pen point of the pen is inserted, and a pen accommodation part that comprises a lateral portion located between the opening and the depression and a cavity located below the lateral portion to allow the pen to move when inserted, where the body part is formed of a magnetic material so as to be attached to and detached from the electronic device, and where the cavity contains a conductive material through which a signal generated from the pen when inserted into the depression is transferred to a touch panel of the electronic device.

Abstract: A system and method for synchronizing a stylus to a capacitive sense array. The system including a capacitive sense array which includes a plurality of electrodes. A synchronization signal is transmitted to the stylus using the plurality of electrodes. The synchronization signal is transmitted to the stylus by capacitively coupling the stylus to the capacitive sense array.

Abstract: A micro touch pen structure includes a casing unit, a circuit unit, a first electromagnetic unit, a pen core unit, a second electromagnetic unit and an elastic unit. The circuit unit is disposed inside the pen-shaped casing structure. The first electromagnetic unit includes a first hollow electromagnetic body inside the pen-shaped casing structure and an electromagnetic coil wound around the first hollow electromagnetic body and electrically connected to the circuit unit. The pen core unit includes a first movable portion passing through the first hollow electromagnetic body, a second movable portion partially exposed from the pen-shaped casing structure, and a stop portion connected between the first and the second movable portions. The second electromagnetic unit includes a second hollowing electromagnetic body fixed inside the pen-shaped casing structure and disposed around the first movable portion. The elastic unit is disposed between the first movable portion and a fixed structure.

Abstract: Improved approaches for users to interact with graphical user interfaces of computing devices are disclosed. A rotational user action supplied by a user via a user input device can provide accelerated scrolling. The accelerated nature of the scrolling enables users to scroll or traverse a lengthy data set (e.g., list of items) faster and with greater ease. The amount of acceleration provided can be performed in successive stages, and/or performed based on the speed of the rotational user action. In one embodiment, the rotational user action is transformed into linear action with respect to a graphical user interface. The resulting acceleration effect causes the linear action to be enhanced such that a lengthy data set is able to be rapidly traversed.

Abstract: The present disclosure provides systems and methods for receiving an input signal from a touch-sensitive interface via a first electrode associated with a tip of an active stylus. An input signal may be amplified via a control circuit that adjusts the gain of one or more amplifiers to compensate for changes in tip capacitance between the tip of the active stylus and the touch-sensitive interface. Changes in tip capacitance may be indirectly detected and compensated for by comparing the tip capacitance with that of a reference capacitor via a differential amplification circuit that includes one or more differential amplifiers.

Abstract: The present disclosure discloses an active pen for a touch display screen, a touch display screen and a touch control input system, to improve human-machine interaction accuracy of operating the touch display screen with the active pen by a user. The active pen for the touch display screen comprises a transparent elastic pen point, an optical receiver and an excitation signal emitting apparatus, wherein the contact area between the transparent elastic pen point and the touch display screen is increased with an increase in an operating force, the optical receiver is configured to receive detection light which comes from the touch display screen and penetrates through the transparent elastic pen point, meanwhile, the excitation signal emitting apparatus is in signal connection with the optical receiver, so as to emit an excitation signal of a corresponding intensity to the touch display screen in accordance with the intensity of the detection light received by the optical receiver.

Abstract: An input device and an input method for a data processing device are provided. The input device includes a touch-sensitive module, an operation prompt interface and a controller. According to the input method, the input device issues a first input signal to the data processing device when a first electrical property change resulting from the keystroke or the tap is sensed in a first operation state. The input device is switched from the first operation state to a second operation state in response to a switching operation. The input device issues a second input signal to the data processing device when a second electrical property change resulting from a touch action is sensed in the second operation state.

Abstract: The present invention provides a transmitter which is configured to transmit an electrical signal to a capacitive touch sensitive device according to a transmitter status in response to a trigger event detected. As a result, the capacitive touch sensitive device can calculate the transmitter status and a relative position between the transmitter and the capacitive touch sensitive device. The electrical signal is mixed by signals having a plurality of frequencies.

Abstract: The present disclosure provides an apparatus and a control method. By means of arranging in an operating apparatus a first input member for locating a touch control position via a touch control operation and a second input member for issuing a vibration signal to be collected by an electronic device during the touch control operation, it is possible to determine an operation mode of the electronic device based on the vibration signal, and to operate the electronic device in the operation mode, thereby enabling to control the operation mode of the electronic device via the vibration signal issued when the operating apparatus is in contact with the electronic device. It can be seen that, the technical solutions of embodiments of the present disclosure can achieve more application functions by using apparatus for performing touch control operations on electronic devices, and thus can achieve the technical effect of extending the applicable range of the operating apparatus.

Abstract: In one embodiment, a system comprises a stylus and a touch sensor. The stylus is operable to transmit a first signal. The touch sensor comprises a first plurality of electrode lines and a controller. Each electrode line is operable to sense the first signal transmitted by a stylus. The stylus tip of the stylus is located at a position relative to the first plurality of electrode lines at the time of transmission of the first signal. The controller is operable to measure a voltage, charge, or capacitance of the sensed first signal on each electrode line of the first plurality of electrode lines and estimate the position of the stylus tip based on interpolation of the measured voltages on each electrode line of the first plurality of electrode lines.

Abstract: Techniques are disclosed for interacting with a computing device using a stylus. The stylus is configured with a pressure-sensitive control feature that can be activated to perform various actions while the stylus is touching or otherwise sufficiently proximate to a stylus detection surface of the device. The pressure control feature function can be associated with a variety of tasks on the computing device such as: adjusting variables, executing a particular command, switching between tools, modifying a particular tool's settings, and launching an application. In some embodiments, the stylus-based pressure-sensitive control feature is configured to allow for squeeze actions, tapping actions, and various combinations of such pressure-types on the pressure-sensitive control feature to uniquely identify a corresponding function to be carried out on the computing device.

Abstract: In one embodiment, a stylus includes a first sensor disposed proximate a first end of the stylus. The first sensor is adapted to receive a first receive signal via a first capacitive coupling with a touch sensor of a device. The first end of the stylus is at a tip-end of the stylus. The stylus also includes a second sensor disposed proximate the first end of the stylus. The second sensor is adapted to receive a second receive signal via a second capacitive coupling with the touch sensor of the device. A proximity of the first sensor to the first end of the stylus is greater than a proximity of the second sensor to the first end of the stylus. A widest portion of the first sensor has a greater width than at least a portion of the second sensor.

Abstract: An erasing device to erase an image displayed on a display apparatus, the erasing device including: a housing; a generator to generate an electromagnetic field so that the electromagnetic field is emitted from each of a plurality of portions of a tip of the housing; and a controller to control the generator to generate the electromagnetic field when the tip touches a surface of the display apparatus so that the display apparatus detecting the electromagnetic field erases an image within a preset image deletion region with a predetermined area based on a position on the surface touched by the tip, wherein the generator adjusts output of the electromagnetic field from each portion of the tip based on whether each portion of the tip touches the surface so that the display apparatus adjusts the area of the image deletion region based on the portion of the tip touched by the surface.

Abstract: Providing enhanced experience is described. Information obtained based on a location of an controller device on a controller surface is used to provide enhancing information.

Abstract: An instrument eject system includes a device configured to store an instrument at a storage location within the device. A cover is rotationally coupled to a base via hinge. An ejection element is configured to impose an ejecting force on the instrument when the instrument is stored within the device. A retaining element is configured to retain the instrument within the device in a lock position of the retaining element and to release the instrument in a release position of the retaining element.

Abstract: The invention relates to a mobile receiver unit (1) for controlling an actuator (2) for setting a pan and/or tilt angle ?, ? of a camera (3), said unit having a display device 4 to display an image captured by the camera (3), a control device (5) to define control commands for the actuator (2) and a transmitter unit (6) to transmit the control commands to the actuator (2), wherein the control device (5) has a gyroscopic sensor (7) to detect a relative change in angle of the mobile receiver unit (1) around at least one axis A, B, wherein a control command for a relative angle change of the pan angle ? and/or the tilt angle ? of the camera (3) is determined by the relative angle change, and/or the control device (5) has a compass sensor (8) to detect an absolute angle position of the mobile receiver unit (1) around at least one axis A, B, wherein a control command for an absolute angle setting of the pan angle ? of the camera is determined by the absolute angle position.

Abstract: In one embodiment, while a mobile electronic device is in a first operation state, it receives sensor data from one or more sensors of the mobile electronic device. The mobile electronic device analyzes the sensor data to estimate a current intention of a user with respect to the mobile electronic device; and transition from the first operation state to a second operation state based on the current intention of the user with respect to the mobile electronic device.

Abstract: Methods and apparatus to use predicted actions in VR environments are disclosed. An example method includes predicting a predicted time of a predicted virtual contact of a virtual reality controller with a virtual musical instrument, determining, based on at least one parameter of the predicted virtual contact, a characteristic of a virtual sound the musical instrument would make in response to the virtual contact, and initiating producing the sound before the predicted time of the virtual contact of the controller with the musical instrument.

Abstract: Disclosed are an ultrasonic wave receiver and a position information input apparatus comprising same. A signal generator and the ultrasonic wave receiver of the present invention both comprise a rechargeable battery therein whereby same are driven, and are coupled to a main body part when position information input is finished. The main body part comprises a large-capacity battery supplied and charged with a charging current from an external electronic device. Also, the main body part charges the signal generator and the ultrasonic wave receiver by supplying same with a charging current from the large-capacity battery when the signal generator and the ultrasonic wave receiver are coupled to the main body part. Accordingly, the position information input apparatus can easily be carried by coupling the signal generator and the ultrasonic wave receiver to main body part, and can maintain the signal generator and the ultrasonic wave receiver in charged state.

Abstract: A device for aiding in the activation of a touchscreen includes an attachment portion and a conductive nipple coupled to and extending through the attachment portion. The attachment portion can include a plurality of non-conductive layers that are configured to attach to the fingertip of a user. The attachment portion can be generally flexible and include an adhesive layer for attaching the device to the tip of a user's finger. The attachment portion can also be in the form of a flexible sleeve that will extend over the user's finger. The sleeve can include a hole in the tip for allowing a user's fingernail to extend therethrough. The conductive nipple will transfer the conductive energy of the user's skin therethrough, allowing a focused point of activation on the touchscreen. The attachment portion can also include a fingerprint reader, microprocessor, and storage medium embedded therein.

Abstract: An electrostatic capacitive coupling type touch panel including an input region having four sides, a peripheral region around the input region, terminals formed in the peripheral region along a first side of the input region, wirings formed in the peripheral region along second, third and fourth sides of the input region, and the input region having X and Y electrodes crossing. The wirings are connected between corresponding X or Y electrodes and wiring terminals plurality of terminals. A dummy wiring, which is not connected to any of the X electrodes or Y electrodes, is provided outside the wiring formed in a farthest position from the input region, and the dummy wiring extends through the peripheral region along the second, third and fourth sides of the input region, and electrically connects to at least one dummy wiring terminal.

Abstract: In one embodiment, a controller includes one or more computer-readable non-transitory storage media embodying logic that is operable when executed to: initiate an acquisition of a first signal from an electrode of a touch sensor according to an acquisition frequency of the touch sensor, store a first modulated signal which includes a modulated form of the first signal, initiate an acquisition of a second signal from the electrode of the touch sensor according to the acquisition frequency of the touch sensor, reverse a polarity of the second signal to produce a third signal, store a second modulated signal which includes a modulated form of the third signal, generate a signal-timing waveform based on the first and second modulated signals, and retrieve information associated with a stylus from the generated signal-timing waveform.

Abstract: A power management apparatus and a power management method are provided. The method includes the following steps. Conduct a first current path during a first period. Provide a first voltage to an operation end when the first current path conducts and a microprocessor is disabled. The first voltage is used to selectively conduct a second path during the first period. Provide a second voltage to the microprocessor when the second current path conducts. The second voltage is used to turn on the microprocessor. Provide a third voltage to the operation end by the microprocessor when the microprocessor is turned on. The third voltage is used to keep the second current path conducted.

Abstract: A string-attached input pen including an input pen for a portable electronic device, and a string structural body, in which the string structural body has a first string section and a second string section, the first string section has a string-like member whose one end is coupled to the input pen and a ring member attached to the other end of the string-like member, and the second string section includes an annular belt, and the ring member is loosely inserted into the annular belt.

Abstract: An accessory comprising an interface configured to control an electronic device into which the input device is configure to be connected, the electronic device comprising a display, wherein the interface is configured to control the electronic device in response to movement of the input element across a surface of the electronic device for controlling the electronic device.

Abstract: A touch screen according to the present invention includes: a transparent substrate; a plurality of row-direction wirings and a plurality of column-direction wirings provided on the transparent substrate, the row-direction wirings and the column-direction wirings intersecting via an inter-layer insulating film with each other in a stereoscopic view; a plurality of lead-out wirings each provided to be electrically extended from each of first ends of the said row-direction wirings and the column-direction wirings; and a shield wiring provided to surround in a planar view the row-direction wirings, the column-direction wirings, and the lead-out wirings, wherein the row-direction wirings, the column-direction wirings, and the shield wiring have comb-teeth parts which are formed to have comb-teeth shapes such that distances from the shield wiring to the row-direction wirings and the column-direction wirings are small at predetermined parts.

Abstract: An optical touch pen includes a pen case, an operation module, and a power module. The operation module is disposed within an upper cover of the pen case, and includes a pen tip, a supporting part, a circuit board and a multi-directional auxiliary element. The multi-directional auxiliary element is arranged between an inner wall of the upper cover and the engaging structure of the supporting part. The power module is disposed within a lower cover of the pen case. When an external force is applied to the pen tip, the pen tip and the supporting part are shifted in response to the external force, the engaging structure of the supporting part is shifted relative to the multi-directional auxiliary element, and the external force is transmitted downwardly to the circuit board. Consequently, a current switch on the circuit board is triggered and the power module is electrically conducted.

Abstract: A system for physically and logically integrating near field communication technology, touch sensor technology and display technology by using a more powerful near field communication antenna disposed under the touch sensor and display screen for transmitting, and a smaller near field communication antenna on top of the touch sensor for receiving near field communication signals.

Abstract: A processor detects an eraser surface on a touch screen. In addition, the processor generates a virtual eraser area for the touch screen from the eraser surface as the eraser surface shape with the virtual eraser area VA=K/?EA where K is a nonzero constant and EA is an eraser angle between the eraser surface and the touch screen.

Abstract: A smartpen configured for hands free audio recording is disclosed. One example smartpen may be configured so that a microphone contained in the smartpen is automatically oriented for unobstructed reception of ambient sound when the smartpen is placed on a supporting surface. Another example smartpen may have a weight distribution that causes the smartpen to roll to a desired orientation of the microphone when the smartpen is placed on a supporting surface with the microphone in a different orientation. Still another example smartpen may have one or more surface features disposed on a surface of the body of the smartpen, where the surface features are configured to position the microphone in a desired orientation when the smartpen is placed on a supporting surface.

Abstract: Computing devices are disclosed that use haptic technology to communicate data to a stylus device. This data may include, for example, updates to the stylus device, instructions on how the stylus should behave, authentication and identification information, and other data. This communication may also allow a stylus to implement security features and copy and paste functionality from one user device to another. In an aspect, the computing device includes a haptic element that provides a vibration force to the device or touchscreen of the device, and communicates data embedded on a carrier to the stylus. The stylus receives the vibration force through a pressure sensor on the stylus and used the information to enhance the user experience.

Abstract: A touch display device includes a touch sensor, a visual accelerator, and a display. The touch sensor senses a touch. The visual accelerator visualizes the touch. The display displays information corresponding to the visualized touch. When the touch is outside a visual acceleration area, the visual accelerator does not process the touch. When the touch is in the visual acceleration area, the visual accelerator visualizes the touch on the display.

Abstract: A passive stylus with a deformable tip is described herein. In one embodiment, a thin annular body configured to be hand-held with a chisel shaped tip disposed at the first end of the body is provided. The chisel shaped tip includes a deformable material such that the chisel shaped tip is operable to interface with a touch a sensitive surface with a detectable surface area when a first pressure is exerted on the body and translated to the chisel shaped tip. The chisel shaped tip is operable to interface with the touch sensitive surface with a second detectable surface area, this one different from the first detectable surface area, when a second pressure is exerted on the body and translated to the chisel shaped tip. The stylus may include a second tip on the back end for providing an erase function.

Abstract: The general field of the invention is that of capacitive dongles used with visualization devices including a capacitive touch-sensitive surface comprising a matrix of conductive rows and columns, the dongle being arranged on said touch-sensitive surface in operational use, the dongle operating in send mode and in receive mode, The dongle according to the invention includes: means for sending periodic analogue signals sent at a specific frequency known as the dangle frequency; a ring-shaped flat conductive metal part connected to said sending means, said part intended to be placed on said touch-sensitive surface; means for receiving the received signals output by said conductive metal part; means for analyzing said digitized received signals; means for storing the sent and analyzed signals; a digital communication interface.

Abstract: A micro touch pen structure includes a casing unit, a circuit unit, a first electromagnetic unit, a pen core unit, a second electromagnetic unit and an elastic unit. The circuit unit is disposed inside the pen-shaped casing structure. The first electromagnetic unit includes a first hollow electromagnetic body inside the pen-shaped casing structure and an electromagnetic coil wound around the first hollow electromagnetic body and electrically connected to the circuit unit. The pen core unit includes a first movable portion passing through the first hollow electromagnetic body, a second movable portion partially exposed from the pen-shaped casing structure, and a stop portion connected between the first and the second movable portions. The second electromagnetic unit includes a second hollowing electromagnetic body fixed inside the pen-shaped casing structure and disposed around the first movable portion. The elastic unit is disposed between the first movable portion and a fixed structure.

Abstract: Apparatus and methods of active stylus to host device data transmitting are described. One method receives, at a stylus, an indication that a host device is performing a first coordinate measurement operation to determine a coordinate of the stylus proximate to a capacitive sense array of the host device. The set of coordinate measurement operations includes a first measurement operation of a first set of electrodes of the capacitive sense array and a second measurement operation of a second set of electrodes of the capacitive sense array. While the host device is performing the set of coordinate measurement operations, the stylus transmits a data packet of stylus data to the host device. In particular, the stylus transmits a first bit of the data packet during the first measurement operation and transmits a second bit of the data packet during the second measurement operation.