Abstract: An electronic pen includes a casing, an opening portion formed on one side of the casing, a core body that projects outside of the casing through the opening portion, a pen module part, and a core body insertion member disposed in the casing and having a hollow space that houses the core body. The hollow space includes a hollow portion between an inner circumferential surface of the core body insertion member and an outer circumferential surface of the core body when the core body insertion member houses the core body, the hollow portion communicating, via the opening portion, with a first space external to the electronic pen. The hollow portion is separated from a second space in which the pen module part is disposed within the casing.

Abstract: An electronic pen is provided that is enhanced in strength such as not to be bent or broken even when made to be thinner (smaller in diametric size). A connection section holds a core body at one end thereof and holds a circuit board at the other end thereof. The circuit board is accommodated in a board protecting pipe, which is fitted to the connection section. The board protecting pipe is provided with a side opening, and an operation on an electronic part on the circuit board accommodated therein and a work on an electronic circuit formed on the circuit board can be performed through the side opening. An electronic pen main body section wherein the core body and the circuit board and the board protecting pipe are united together through the connection section is accommodated in a casing, to constitute the electronic pen.

Abstract: A position indicating device includes a housing in which an electronic pen including a pen tip is mountable, a force sense generator configured to generate a force sense, and a processor configured to control the force sense generator to generate the force sense when, with the electronic pen mounted in the housing, a distance between a position of the pen tip of the electronic pen in a virtual reality space and an object in the virtual reality space is equal to or less than a predetermined value.

Abstract: A position detection device includes a plurality of linear electrodes extending in a first direction, a plurality of coils extending in a second direction, and a sensor controller configured to: in a first half of each of pen signal detection periods, send an alternating magnetic field by supplying first and second alternating currents to the plurality of linear electrodes; in a second half of each of the pen signal detection periods, connect a defined number of two or more coils selected from the plurality of coils in connection modes having different connection polarities in the pen signal detection periods and detect a pen signal level result value; and separately acquire the pen signal level for each of the defined number of two or more coils by performing a restoration operation according to the connection polarities on the result values detected in the pen signal detection periods.

Abstract: A computer according to the present disclosure includes a processor, and a storage device storing one or more programs that, when executed by the processor, cause the processor to: calculate first coordinates in a first coordinate system of a 3D object rendered in an XR space defined by the first coordinate system, calculate second coordinates in a second coordinate system different from the first coordinate system of a device tracked by a tracking system related to the second coordinate system, and calculate a coordinate conversion equation that converts coordinates of the second coordinate system into coordinates of the first coordinate system based on the first coordinates and the second coordinates, in response to a predetermined operation by a user. The computer enables easy use of a device compatible with a second tracking system in an XR space according to a first tracking system.

Abstract: An active pen is used with an electronic equipment including a plurality of sensor electrodes. The active pen includes a receiving circuit, which, in operation, receives an uplink signal from the electronic equipment. The active pen includes a transmitting circuit, which, in operation, transmits a level indicator to the electronic equipment. The level indicator indicates whether the active pen operates in a first operation mode of transmitting a first downlink signal at a first voltage to the electronic equipment or in a second operation mode of transmitting a second downlink signal at a second voltage different from the first voltage to the electronic equipment.

Abstract: An electronic pent includes a case, a core body, and a signal generation circuit. The core body is attached inside the case such that a front end portion in an axial direction protrudes from an opening portion of the case. The signal generation circuit generates a signal to be transmitted from the core body. The core body includes a core rod and a protection member that covers a pen tip portion and an axis portion of the core rod. The core body is provided with a middle portion with a dielectric constant different from a dielectric constant of the protection member, the middle portion being provided around a side surface of the axis portion of the core rod such that the core rod is separated from the protection member.

Abstract: A change of a resource allocation scheme in a multi-pen supporting electronic apparatus can be made in a shorter period of time than in the prior art. A sensor controller 50 assigns communication resources to one or more pens 2, respectively, and detects a position of each of the one or more pens 2 on the basis of a downlink signal DS received from each of the one or more pens 2 using the assigned communication resources. When changing a resource allocation scheme, which indicates a structure of the communication resources or a method of using the communication resources, the sensor controller 50 broadcasts information indicating a new resource allocation scheme to the one or more pens 2.

Abstract: Disclosed here is an electronic eraser includes an electronic pen unit that includes a core body and a pressure detector that, in operation, detects a pressure applied to the core body and that sends an erasing signal including pressure information detected by the pressure detector, a housing having a substantially rectangular parallelepiped shape, and a corner member that is integral with the housing, is separable from the housing, and has a square pyramid shape having a triangular side surface configuring a part of a bottom surface of the housing. The core body is inserted into a portion of a central axis coincident with a perpendicular line drawn from a vertex of the corner member to a bottom surface of the corner member, and the electronic pen unit is obliquely arranged in the housing, so that the corner member is slidable and movable in a direction of the central axis.

Abstract: An authorship determining method is provided for determining authorship of an artwork by using a computer. The computer calculates a first hash value, which is a hash value of first pre-integration data, which is pre-integration data of the artwork, and generates a first creation certificate including the first hash value. According to another aspect, a computer is provided including a processor used to determine authorship of an artwork. The processor is configured to calculate a hash value of pre-integration data of the artwork, and generate a creation certificate including the hash value. According to a further aspect, a program is provided which causes a computer to execute processing of certifying authorship of an artwork. The program causes the computer to execute a step of calculating a hash value of pre-integration data of the artwork; and a step of generating a creation certificate including the hash value.

Abstract: An electronic pen includes a cylindrical pen housing having an opening on a pen tip side and having a hollow portion inside, and an electronic pen main body having a cylindrical main body housing to be housed in the hollow portion of the pen housing. An axial member is installed on one end side of the main body housing, while another end side of the main body housing is locked in the pen housing. A projection portion projecting in a direction crossing the axial direction is formed on an outer circumference portion of the main body housing at a predetermined position in the axial direction. A stopper portion to be engaged with the projection portion in a state in which a tip end side of the axial member is exposed outside from the opening is formed on an inner wall surface of the hollow portion of the pen housing.

Abstract: An electronic pen includes a main body unit, a weight member, an attachment portion, and a cap case unit. The main body unit has a pen tip that indicates a position, which is formed in an end portion on a first side of the main body unit. The attachment portion detachably attaches to the weight member and is formed in an end portion on a second side of the main body unit. The cap case unit is configured to be detachably engaged with the second side of the main body unit and configured to house the weight member when engaged with the second side. The attachment portion is provided with an elastic member configured to bias the weight member attached to the attachment portion to the second side of the main body unit.

Abstract: An image drawing method performed by first and second computers is provided. The image drawing method includes: transmitting, by the second computer, a streaming video that includes a pen stroke image generated by a first rendering process; generating, by the first computer, a pen stroke image by performing a second rendering process, which is shared with the first rendering process, in parallel with the first rendering process; receiving, by the first computer, the streaming video from the second computer via communication that incurs a delay; compositing, by the first computer, the pen stroke image into the streaming video; and outputting, by the first computer, the streaming video. The image drawing method enables alignment of appearances between a provisional image and the pen stroke image that appears within the streaming video.

Abstract: A cartridge-type electronic pen main body includes a conductive center electrode and a peripheral electrode disposed around the center electrode. The peripheral electrode includes a tapered part on a pen tip side and a cylindrical shaped part on an opposite side along an axial direction. When the cartridge-type electronic pen main body is in use, one end of the center electrode forming a pen tip is projected to the outside from an opening of a cylindrical housing of an electronic pen, and a portion of the tapered part of the peripheral electrode is also projected to the outside such that both the one end of the center electrode and the portion of the tapered part of the peripheral electrode are projected beyond a distal end of the cylindrical housing to capacitively couple with a sensor surface while the cylindrical shaped part of the peripheral electrode remains within the cylindrical housing.

Abstract: Provided is an electronic pen including a housing having an opening portion on a pen tip side of the housing on a first end in an axial direction, the opening portion having a pillar-shaped space with a predetermined length in the axial direction as a center line direction of the space, the housing including, inside, a hollow portion communicating with the pillar-shaped space of the opening portion, a pen pressure detector arranged in the hollow portion, and a core body including a tip portion on the first end in the axial direction, part of the tip portion protruding outside of the housing from an opening on a pen tip side of the pillar-shaped space of the opening portion of the housing, the core body being installed such that a second end in the axial direction, in operation, transmits, to the pen pressure detector, pen pressure applied to the tip portion.

Abstract: A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.

Abstract: A pen input device sheet for a position detection region of a position detecting sensor, which includes an elastic material layer that has elasticity and is composed of layer portions stacked in a thickness direction of the pen input device sheet. A side opposite of a side of the position detecting sensor in the elastic material layer is a writing input surface to which writing input with an electronic pen is made. The pen input device sheet is configured such that a vibration frequency characteristic of a kinetic friction coefficient when the electronic pen is moved at a predetermined speed on the writing input surface of the pen input device sheet matches the vibration frequency characteristic of the kinetic friction coefficient when a predetermined writing material is moved at the predetermined speed on a predetermined writing medium. A material having elasticity in the elastic material layer is polyurethane resin.

Abstract: Provided is a pen state detection circuit for detecting a state of an electronic pen based on a signal distribution detected by a touch sensor including a plurality of sensor electrodes arranged in a plane shape, the electronic pen including at least one electrode, the pen state detection circuit, in operation, acquires, from the touch sensor, a first signal distribution and a second signal distribution, generates a two-dimensional signal distribution by synthesizing the first signal distribution and second signal distribution, or generates a two-dimensional feature distribution by synthesizing a first feature distribution relating to a shape of the first signal distribution and a second feature distribution relating to a shape of the second signal distribution, and estimate a position indicated by the electronic pen or a posture of the electronic pen from the two-dimensional signal distribution or two-dimensional feature distribution.

Abstract: Provided is a display system including a position indicating device and an information processing apparatus having a display screen and a sensor that detects a position indicated by the position indicating device. The position indicating device includes a casing, an interaction circuit disposed inside the casing, where the interaction circuit exchanges a signal with the sensor, and a securing member that secures the casing to the display screen. The information processing apparatus includes a position detection circuit that detects the position indicated by the position indicating device that is secured to the display screen through the securing member, based on the signal exchanged by the interaction circuit, and a control circuit that performs control to display a given display image on the display screen with the position indicated by the position indicating device and detected by the position detection circuit used as a reference.

Abstract: A sensor apparatus includes: a linear electrode group extended in parallel; a loop coil group crossing the linear electrode group; and a sensor controller. The sensor controller is configured to sequentially send alternating magnetic fields from the linear electrode group, use the loop coil group to detect an alternating magnetic field generated by an indicator according to the alternating magnetic fields, determine a linear electrode set including part of the linear electrode group based on a result of detecting the a alternating magnetic field, execute a process of generating alternating magnetic fields in at least a part of the linear electrode set for a plurality of times, use a plurality of result values detected by at least the part of the loop coil group as a result of the execution to derive a two-dimensional position of the indicator, and update the linear electrode set according to the two-dimensional position.