Abstract: A method of outputting digital ink data includes: detecting one or more pieces of stroke data; judging whether the one or more pieces of stroke data form a complete unit of semantics; in a case that the one or more pieces of the stroke data form the complete unit of semantics, aggregating the one or more pieces of stroke data into one message; and outputting the aggregated one or more pieces of stroke data together in the one message.

Abstract: A pen is configured to supply an N-bit internal digital value NA to a sensor device, and includes an integrated circuit that acquires a series of the internal digital values NA(s) based on a state OPS of a writing pressure detector. The integrated circuit supplies a first internal digital value NA to the sensor device by transmitting, from an antenna, first transmission data MF including a first standard digital value MS corresponding to the first internal digital value NA. The integrated circuit supplies a second internal digital value NA to the sensor device by transmitting, from the antenna, second transmission data MF that is smaller than N bits and includes an M-bit relative digital value (M<N) corresponding to a relative value between the first internal digital value NA obtained by restoration from the first standard digital value MS and the second internal digital value NA.

Abstract: An active pen communicates with a sensor controller using a series of time slots, to receive uplink signals from and transmit downlink signals to the sensor controller. The series of time slots are determined based on the reception timing, by the active pen, of an uplink signal used as a reference time. The active pen determines whether or not the uplink signal is received and, if yes, the active pen transmits a first downlink signal using a time within the series of time slots. If no, the active pen transmits a second downlink signal using both a time within the series of time slots and a time outside the series of time slots. The second downlink signal is formed by repeating a unit signal that is shorter in duration than each of the series of time slots, to ensure reception by the sensor controller of at least one unit signal.

Abstract: A position detection device includes a first sensor electrode and a second sensor electrode adjacent to the first sensor electrode, first and second connection wires connected to the first and second sensor electrodes, respectively, a sensor controller connected to the connection wires, and a first extension line; and a second extension line. Some of the plurality of connection wires, including the first connection wire, extend at regular intervals in a first region. The connection wires, including the second connection wire, are arranged to extend at regular intervals in a second region different from the first region. The first extension line extends along the second connection wire in the second region and is electrically connected to the first sensor electrode. The second extension line extends along the first connection wire in the first region and is electrically connected to the second sensor electrode.

Abstract: In one embodiment, a stylus includes one or more electrodes and one or more computer-readable non-transitory storage media embodying first logic for transmitting signals wirelessly to a device through a touch-sensor of the device. The stylus has a first power mode in which components of the stylus for receiving signals from or transmitting signals to the device are powered off; a second power mode in which components of the stylus for receiving signals from the device are powered on at least periodically and components of the stylus for transmitting signals to the device are powered off; and a third power mode in which components of the stylus for transmitting signals to the device are powered on at least periodically. The media further embodies second logic for transitioning the stylus from one of the first, second, and third power modes to another one of the first, second, and third power modes.

Abstract: A data communication a system including: a stylus including a pen point electrode; a sensor controller; and a host processor. The stylus of data communication system is configured to transmit a pen signal with an electric field by capacitive coupling between the pen point electrode and a sensor electrode group; report, by the sensor controller, a position of the stylus in an operation surface to the host processor in response to detection of the pen signal by the sensor electrode group; supply, by the host processor, data to the sensor controller; and transmit, by the sensor controller, the data to the stylus in a stylus detection period in which the pen signal that is detected by the sensor electrode group indicates that the stylus is present within a predetermined distance from the operation surface.

Abstract: A pointer position detection method performed by a sensor controller connected to a sensor pattern includes: detecting a pen signal transmitted via a pen electrode provided at a distal end of an active pen, detecting a position of the active pen based on a level of the pen signal detected; detecting one or more candidate touch positions of a passive pointer that does not transmit a signal by detecting one or more changes of one or more capacitances of the sensor pattern, and outputting, as the position of the passive pointer, the one or more candidate touch positions remaining after excluding the position of the active pen from the one or more candidate touch positions.

Abstract: The present disclosure is directed to a position detection sensor of an electromagnetic induction type connected to a position detection circuitry. The position detection sensor includes a circular substrate, a plurality of first loop coils arranged in a first direction on the circular substrate, and a plurality of second loop coils arranged in a second direction on the circular substrate, the second direction intersecting the first direction. Each of the plurality of first loop coils includes a straight portion extending in the second direction and a circumferential portion disposed along an outer edge of the circular substrate, and each of the plurality of second loop coils includes a straight portion extending in the first direction and a circumferential portion disposed along the outer edge of the circular substrate.

Abstract: Disclosed herein is a signature verification apparatus including a first verification circuitry verifying a user's signature by comparing dynamic signature data indicating a change of a user's writing state over time during signing of his or her name by the user and reference data for dynamic signature, a second verification circuitry verifying the user's signature by comparing static signature data indicating a writing path during signing of his or her name by the user and reference data for static signature, and a data registration circuitry registering the reference data for dynamic signature and register the reference data for static signature. In a case where the reference data for static signature has yet to be registered by the data registration circuitry, the second verification circuitry verifies the user's signature by regarding static signature data generated from the reference data for dynamic signature already registered as the reference data for static signature.

Abstract: An active pen is provided that transmits, through coupling capacitance, a signal to a sensor electrode connected to a sensor controller. The active pen includes a pen tip electrode provided on a leading end in a pen axis direction of the active pen; a peripheral electrode provided behind in the pen axis direction as viewed from the pen tip electrode; and a signal processor that transmits a downlink signal from the pen tip electrode and that transmits a reverse-phase signal of the downlink signal from the peripheral electrode at the same time.

Abstract: A combination touch and transducer input system is provided, which facilitates user input into an electronic system with a finger and/or a transducer (e.g., a stylus). The system includes a transducer configured to generate an electric field, and a sensor including an array of electrodes and a controller. The transducer is configured to transmit digital data, such as pen pressure data and switch status data, to the sensor. For example, the transducer comprises electronic circuitry configured to encode the digital data in a signal for transmission to the sensor. The sensor controller is configured to operate both in a touch sensing mode and in a transducer sensing mode. During the touch sensing mode, the controller determines a position of a proximate object (e.g., a finger) by capacitively sensing the object with the array of electrodes.

Abstract: A stylus includes a first sensor configured to receive a first receive signal from a touch sensor of a device, and a second sensor configured to receive a second receive signal from the touch sensor of the device. The stylus includes an amplifier coupled to the first and second sensors and configured to produce a third signal by amplifying the difference between the first receive signal and the second receive signal. The stylus includes a controller configured to decode information encoded in the first receive signal and the second receive signal by processing the third signal.

Abstract: Provided is an electronic pen core body including a tip component portion coupled to an axis component portion. At least one end of the axis component portion in an axial direction is made of a material that is harder than a material from which the tip component portion is made. The axis component portion includes a recessed hole and a fitting portion directly or indirectly fitted to a pen pressure detector. The tip component portion includes a tip portion protruding from the one end of the axis component portion in the axial direction, a coupling core portion disposed within the recessed hole and coupled to an inner wall surface of the recessed hole of the axis component portion, and a second ring-shaped end surface that contacts a first ring-shaped end surface of the axis component portion. The first ring-shaped end surface is covered by the second ring-shaped end surface.

Abstract: A method to be performed by a sensor controller that periodically transmits an uplink signal, and by a stylus that, upon receiving the uplink signal, determines a transmission and reception schedule for a downlink signal and the uplink signal on the basis of the reception timing of the uplink signal. The method includes executing, by the stylus, an uplink signal receiving operation for a first predetermined period of time according to the transmission and reception schedule. The method includes, responsive to the uplink signal not received through the receiving operation and expiration of the first predetermined period of time, continuing, by the stylus, the uplink signal receiving operation for a second predetermined period of time, instead of transmitting the downlink signal according to the transmission and reception schedule.

Abstract: An input system is provided which is capable of mitigating certain inconveniences that may arise due to data processing performed by a host processor. The input system includes a first signal path, a second signal path, and a switch section. The first signal path is used for transmitting a signal from a sensor controller to a display controller through the host processor. The second signal path is used for transmitting a signal from the sensor controller to the display controller without passing the signal through the host processor. The switch section is configured to be able to switch between the first signal path and the second signal path.

Abstract: An active stylus is provided, which can reduce battery power consumption and reduce the time required for its signal transmission. A position detection device includes a tablet and the stylus having a built-in power source, which are capable of bi-directional transmission and reception of signals through capacitive coupling therebetween. The tablet is configured to transmit a trigger signal US_trg and then transmit a command signal US_cmd to the stylus. The trigger signal US_trg causes the stylus to start its command information receiver to receive the command signal US_cmd including information for controlling the stylus.

Abstract: A host system includes a device driver with application-specific settings for a hosted application. Input data is generated by one or more tablet devices at a client computer system. A host-side data transfer application receives the input data and forwards it to the host-side driver, which sends the input data to the hosted application. The tablet data sent to the hosted application is configured according to application-specific settings of the host-side driver, which may support multiple application programming interfaces. A dedicated driver-to-driver connection may also be used to transmit data between client-side and host-side drivers. In another aspect, a host sends an identifier of a hosted application currently in use to a client-side driver, which uses that identifier to look up and apply application-specific settings to tablet data sent to the hosted application. This can eliminate the need for a host-side driver while still allowing application-specific settings for hosted applications.

Abstract: An information input device includes: a communication interface configured to communicate with each of a first external apparatus that operates using a first operating system and a second external apparatus that operates using a second operating system; and a controller configured to operate in a first mode corresponding to a first driver used by the first external apparatus when transferring data to the first external apparatus, and operate in a second mode corresponding to a second driver different from the first driver and used by the second external apparatus when transferring data to the second external apparatus.

Abstract: An information processing system includes: an information processing apparatus; and a position indicator configured to input position information to the information processing apparatus. The position indicator includes: a first sensor configured to detect a movement amount of a fingertip of a user, a second sensor configured to detect a tilt of the position indicator, and a transmission section configured to transmit data indicative of the movement amount detected by the first sensor and of the tilt detected by the second sensor. The information processing apparatus includes: a reception section configured to receive the data transmitted from the position indicator, and a first processor configured to control a movement of a display object displayed on a display screen on the basis of the tilt and the movement amount indicated by the data received by the reception section.

Abstract: A sensor panel is overlaid on a display apparatus and connected to an integrated circuit that detects a position of an active pen in an active region of the display apparatus. The sensor panel includes first electrodes that extend in a first direction. The sensor panel also includes second electrodes that extend in a second direction. The first electrodes include first and second outer electrodes that are located at the outermost edges of the first electrodes and first inner electrodes disposed between the first and second outer electrodes. A width of at least one of the first and second outer electrodes in the second direction is smaller than a width of each of the first inner electrodes in the second direction.