Abstract: According to one embodiment, an active stylus pen includes a first signal generator, a second signal generator and a transmitter. The first signal generator generates a first signal capable of notifying an electronic device capable of accepting an operation executed by the active stylus pen that the pen tip is in contact with the electronic device when an operation of bringing the pen tip into contact with the electronic device is executed. The second signal generator generates a second signal capable of notifying the electronic device that the eraser is in contact with the electronic device when an operation of bringing the eraser into contact with the electronic device is executed.

Abstract: According to one embodiment, an active stylus pen includes a power supply circuit, an operation detector, a counter and a grip detector. The power supply circuit supplies power from a battery to components in the active stylus pen. The operation detector detects an operation with the active stylus pen being performed for an electronic device capable of receiving the operation. The counter counts an elapsed time after detecting the operation being performed. The grip detector detects the active stylus pen being gripped. The power supply circuit reduces power supply to the components when the elapsed time exceeds a value defined in advance and the active stylus pen being gripped is not detected.

Abstract: According to one embodiment, a capacitance type touch panel device which is provided on a screen of a display device and is allowed to detect a touch of a stylus is provided. The touch panel device includes a loop antenna, a sensor and a controller. The sensor is connected to the loop antenna and is configured to detect noise which generates in accordance with driving of the display device. The controller is configured to detect the touch at timing different from timing in which the noise generates in the cycle of generation of detected noise.

Abstract: According to one embodiment, an electronic apparatus includes a first detector, a second detector and a processor. The first detector is configured to detect a first position on a detection surface. The second detector is configured to detect a second position indicated by an indicator on the detection surface. The processor is configured to determine a first orientation of inclination of the indicator based on first coordinates of the first position on the detection surface and second coordinates of the second position on the detection surface, and to correct the second coordinates based on the first orientation of inclination.

Abstract: According to one embodiment, an electronic apparatus comprises a detector and a processor. The detector is configured to chronologically detect coordinates of positions sequentially indicated by an indicator on a detection surface. The processor is configured to determine a level of noise based on the coordinates, and to correct the coordinates using a correction strength value corresponding to the level of noise.

Abstract: According at least to one embodiment, a digitizer pen includes a resonant circuit, a first switcher, a measurement processor, and a transmission module. The resonant circuit includes a coil. The first switcher allows a core tip of a core of a plurality of cores to be exposed. The measurement processor measures pressure applied to the exposed core. The transmission module transmits the pressure applied to the exposed core to the measurement module.

Abstract: According to one embodiment, an antenna apparatus comprises an antenna element connected to a feeding point, a grounded first lumped constant element connected to the antenna element, and a grounded second and third lumped constant elements connected to the antenna element through a selector. The selector is configured to connect the grounded second lumped constant element to the antenna element in order to lower a resonant frequency of the antenna element, and to connect the grounded third lumped constant element to the antenna element in order to raise the resonant frequency of the antenna element.

Abstract: According to one embodiment, an antenna apparatus comprises an antenna element connected to a feeding point, a grounded first lumped constant element connected to the antenna element, and a grounded second and third lumped constant elements connected to the antenna element through a selector. The selector is configured to connect the grounded second lumped constant element to the antenna element in order to lower a resonant frequency of the antenna element, and to connect the grounded third lumped constant element to the antenna element in order to raise the resonant frequency of the antenna element.

Abstract: An information apparatus according to an embodiment includes a first input device for carrying out a pen input, a second input device for carrying out a touch panel input, and a correction processor for correcting a first coordinate detected by the first input device based on a second coordinate detected by the second input device.

Abstract: A mobile terminal includes a first antenna configured to receive power from the first circuit board housed in the first housing, a second antenna configured to receive power from the second circuit board housed in the second housing, a first signal cable configured to electrically connect the first circuit board to the second circuit board and transmit a signal between the first circuit board and the second circuit board, and a second signal cable configured to electrically connect the first circuit board to the second circuit board and bypasses a board current flowing through the first signal cable from the first circuit board to the second antenna during operation of the second antenna.

Abstract: According to one embodiment, an antenna apparatus comprises a first antenna element, a first lumped constant element, a first lumped constant element, a switch and at least one second lumped constant element. The first antenna element comprises a forward part, a folded part and a backward part, the forward part includes a start point connected to a feeding point, and the backward part includes an end point connected to ground. The first lumped constant element is inserted in the backward part. The switch is configured to select a current path in accordance with a control signal. The at least one second lumped constant element is to be selectively connected in parallel to the first lumped constant element through the switch.

Abstract: According to one embodiment, an antenna device includes a first element, a stub, and an open end element. The first element has a folded monopole structure in which a conductor is folded at a folding portion to form a forward portion and a backward portion. A base end of the forward portion is connected to a feeding point, and a distal end of the backward portion is connected to a ground via a first lumped parameter. The stub is provided between the forward portion and the backward portion of the first element so as to shunt the forward portion and the backward portion. The open end element includes a conductor placed in parallel to the first lumped parameter. A base end of the conductor is connected between the stub of the backward portion of the first element and the ground, and the distal end of the conductor is open.

Abstract: An electronic apparatus includes: a case configured to house an electronic component that generates heat therein; an air circulation unit provided in the case and that circulates air between outside of the electronic apparatus and the electronic component; a speaker provided around the air circulation unit and that outputs sound; a circulation control unit provided in a part of the air circulation unit and that controls circulation of air between the outside and the electronic component; and a connector that connects with a cradle.

Abstract: According to one embodiment, an antenna device includes a first element, a stub, and an open end element. The first element has a folded monopole structure in which a conductor is folded at a folding portion to form a forward portion and a backward portion. A base end of the forward portion is connected to a feeding point, and a distal end of the backward portion is connected to a ground via a first lumped parameter. The stub is provided between the forward portion and the backward portion of the first element so as to shunt the forward portion and the backward portion. The open end element includes a conductor placed in parallel to the first lumped parameter. A base end of the conductor is connected between the stub of the backward portion of the first element and the ground, and the distal end of the conductor is open.

Abstract: A wireless terminal includes an antenna which comprises an antenna element and at least one frequency switching circuit to control an operating frequency of the antenna element in accordance with a frequency control signal, a plurality of RF circuits to perform an RF signal processing, an antenna switch to connect the antenna to one of the plurality of RF circuits in accordance with a connection control signal, and a generation unit configured to generate the frequency control signal and the connection control signal in accordance with switching between a plurality of wireless communication systems or switching between transmission and reception.

Abstract: A radio apparatus including a first housing section, a second housing section and a hinge section is provided. The second housing section is rotatably connected to the first housing section. The second housing section includes an antenna feed circuit and a ground circuit. The hinge section is constituted by an axis member fixed to the second housing section and a bearing member fixed to the first housing section. The axis member is put through the bearing member for forming an axis of rotation of the second housing section with respect to the first housing section. The axis member has a conductive portion connected to the antenna feed circuit at a feed point.

Abstract: According to one embodiment, an antenna apparatus comprises a first antenna element, a first lumped constant element, a first lumped constant element, a switch and at least one second lumped constant element. The first antenna element comprises a forward part, a folded part and a backward part, the forward part includes a start point connected to a feeding point, and the backward part includes an end point connected to ground. The first lumped constant element is inserted in the backward part. The switch is configured to select a current path in accordance with a control signal. The at least one second lumped constant element is to be selectively connected in parallel to the first lumped constant element through the switch.

Abstract: A wireless terminal includes an antenna which comprises an antenna element and at least one frequency switching circuit to control an operating frequency of the antenna element in accordance with a frequency control signal, a plurality of RF circuits to perform an RF signal processing, an antenna switch to connect the antenna to one of the plurality of RF circuits in accordance with a connection control signal, and a generation unit configured to generate the frequency control signal and the connection control signal in accordance with switching between a plurality of wireless communication systems or switching between transmission and reception.

Abstract: An antenna device includes a printed circuit board and an antenna element. The printed circuit board has a face a portion of which is formed by a conductive layer overlaid with a magnetic material layer made of anisotropic magnetic material. The magnetic material layer is arranged in such a way that a hard magnetization axis of the anisotropic magnetic material is directed almost parallel to the face. The antenna element is arranged almost parallel to the printed circuit board on a side of the face. The antenna element is arranged in such a way that an antenna current distributed on the antenna element if the antenna element is excited is directed almost perpendicular to the hard magnetization axis.

Abstract: An antenna device is provided. The antenna device includes an antenna element including a first portion and a second portion formed almost parallel to each other, and a plane-shaped piece of magnetic material provided between the first portion and the second portion, the magnetic material arranged almost parallel to the first portion and the second portion. A wireless mobile terminal is provided. The wireless mobile terminal includes a printed circuit board, an antenna element including a first portion and a second portion formed almost parallel to each other, the first portion and the second portion arranged almost parallel to the printed circuit board each, and a plane-shaped piece of magnetic material provided between the first portion and the second portion, the magnetic material arranged almost parallel to the printed circuit board, the magnetic material arranged almost parallel to the first portion and the second portion.