Abstract: A display control apparatus includes: a head mounted display information acquisition block configured to acquire information indicative of a position of a head mounted display worn on a head of a user; an input apparatus information acquisition block configured to acquire information indicative of a position of an input apparatus for use by the user; an instruction input acquisition block configured to acquire information indicative of an instruction entered in the input apparatus; and an image generation block configured to generate an image to be displayed on the head mounted display on a basis of an instruction acquired by the instruction input acquisition block. The image generation block displays an image of the input apparatus at a position in the image determined on a basis of a relative position with the head mounted display of the input apparatus.

Abstract: A laser marking system in one aspect of the present disclosure includes a laser marker, a beam receiving device, and a notifier. The laser marker includes a laser beam emitter. The beam receiving device includes a beam receiver and a transmitter. The beam receiver receives a laser beam emitted by the laser beam emitter. The transmitter transmits a first positional signal. The first positional signal indicates a receiving position of the laser beam in the beam receiver. The notifier notifies of the receiving position of the laser beam based on the first positional signal.

Abstract: Methods and apparatus provide for carrying out a method for rendering a virtual-three dimensional space on a display, including: acquiring information indicative of a position of a head mounted display worn on a head of a user; acquiring information indicative of a position of an input apparatus for use by the user; acquiring information indicative of an instruction entered in the input apparatus; and generating an image of the virtual three-dimensional space to be displayed on the head mounted display at a viewpoint position and a sightline direction, wherein the generating includes generating an image of the input apparatus at the position in the image determined on a basis of a relative position between the head mounted display of the input apparatus, and wherein the generating includes generating an image of an object which is emitted from the input apparatus in response to the user manipulating the input apparatus.

Abstract: Methods and apparatus provide for carrying out a method for rendering a virtual-three dimensional space on a display, including: acquiring information indicative of a position of a head mounted display worn on a head of a user; acquiring information indicative of a position of an input apparatus for use by the user; acquiring information indicative of an instruction entered in the input apparatus; and generating an image of the virtual three-dimensional space to be displayed on the head mounted display at a viewpoint position and a sightline direction, where the generating includes generating an image of the input apparatus at the position in the image determined on a basis of a relative position with the head mounted display of the input apparatus, and where the generating includes generating an image of a hand of the user when the user controls the input apparatus.

Abstract: A display control apparatus includes: a head mounted display information acquisition block configured to acquire information indicative of a position of a head mounted display worn on a head of a user; an input apparatus information acquisition block configured to acquire information indicative of a position of an input apparatus for use by the user; an instruction input acquisition block configured to acquire information indicative of an instruction entered in the input apparatus; and an image generation block configured to generate an image to be displayed on the head mounted display on a basis of an instruction acquired by the instruction input acquisition block. The image generation block displays an image of the input apparatus at a position in the image determined on a basis of a relative position with the head mounted display of the input apparatus.

Abstract: A display control apparatus includes: a head mounted display information acquisition block configured to acquire information indicative of a position of a head mounted display worn on a head of a user; an input apparatus information acquisition block configured to acquire information indicative of a position of an input apparatus for use by the user; an instruction input acquisition block configured to acquire information indicative of an instruction entered in the input apparatus; and an image generation block configured to generate an image to be displayed on the head mounted display on a basis of an instruction acquired by the instruction input acquisition block. The image generation block displays an image of the input apparatus at a position in the image determined on a basis of a relative position with the head mounted display of the input apparatus.

Abstract: A display control method in one aspect of the present disclosure includes: displaying a position image; acquiring a relevant signal; and rotating the position image. Displaying a position image includes displaying a position image in a specified direction with respect to a background image of a screen of a portable terminal device. Rotating the position image includes rotating the position image with respect to the background image so that an image direction matches a device direction.

Abstract: Methods and apparatus provide for carrying out a method for rendering a virtual-three dimensional space on a display, including: acquiring information indicative of a position of a head mounted display worn on a head of a user; acquiring information indicative of a position of an input apparatus for use by the user; acquiring information indicative of an instruction entered in the input apparatus; and generating an image of the virtual three-dimensional space to be displayed on the head mounted display at a viewpoint position and a sightline direction, where the generating includes generating an image of the input apparatus at the position in the image determined on a basis of a relative position with the head mounted display of the input apparatus, and where the generating includes generating an image of a hand of the user when the user controls the input apparatus.

Abstract: A laser marker according to one aspect of the present disclosure includes: a laser emitter; an information reception circuit; a measuring circuit; and a disabling circuit. The measuring circuit starts to measure an elapsed time in response to the information reception circuit receiving an enabled time. The disabling circuit disables the laser marker for operating in response to a length of the elapsed time reaching or having reached a length of the enabled time.

Abstract: A laser marking system in one aspect of the present disclosure includes a laser marker, a beam receiving device, and a notifier. The laser marker includes a laser beam emitter. The beam receiving device includes a beam receiver and a transmitter. The beam receiver receives a laser beam emitted by the laser beam emitter. The transmitter transmits a first positional signal. The first positional signal indicates a receiving position of the laser beam in the beam receiver. The notifier notifies of the receiving position of the laser beam based on the first positional signal.

Abstract: A laser marker in one aspect of the present disclosure includes a support body, a rotation body, a motor, a laser beam emitter, a device communicator, and a motor control circuit. The device communicator performs a wireless communication with a portable terminal device and with a beam receiving device. The portable terminal device transmits a rotation start command signal. The beam receiving device generates and transmits a bean receiving position signal. The motor control circuit starts controlling a rotation of the motor based on the beam receiving position signal in response to the device communicator receiving or having received the rotation start command signal.

Abstract: Methods and apparatus for controlling a display include: acquiring information indicative of first entered instructions from a first input apparatus used by a first user wearing a head mounted display and information indicative of second entered instructions from a second input apparatus used by a second user enabled to view a display apparatus; controlling, in a virtual three-dimensional space, an event on the basis of one or more of the first entered instructions and the second entered instructions acquired; generating a first image of said virtual three-dimensional space to be displayed on said head mounted display; and generating a second image of said virtual three-dimensional space to be displayed on said display apparatus, where the first image includes the first input apparatus, and where the second image does not include the second input apparatus.

Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.

Abstract: A display control apparatus includes: a head mounted display information acquisition block configured to acquire information indicative of a position of a head mounted display worn on a head of a user; an input apparatus information acquisition block configured to acquire information indicative of a position of an input apparatus for use by the user; an instruction input acquisition block configured to acquire information indicative of an instruction entered in the input apparatus; and an image generation block configured to generate an image to be displayed on the head mounted display on a basis of an instruction acquired by the instruction input acquisition block. The image generation block displays an image of the input apparatus at a position in the image determined on a basis of a relative position with the head mounted display of the input apparatus.

Abstract: A display control apparatus includes: a head mounted display information acquisition block configured to acquire information indicative of a position of a head mounted display worn on a head of a user; an input apparatus information acquisition block configured to acquire information indicative of a position of an input apparatus for use by the user; an instruction input acquisition block configured to acquire information indicative of an instruction entered in the input apparatus; and an image generation block configured to generate an image to be displayed on the head mounted display on a basis of an instruction acquired by the instruction input acquisition block. The image generation block displays an image of the input apparatus at a position in the image determined on a basis of a relative position with the head mounted display of the input apparatus.

Abstract: Methods and apparatus for controlling a display include: acquiring information indicative of first entered instructions from a first input apparatus used by a first user wearing a head mounted display and information indicative of second entered instructions from a second input apparatus used by a second user enabled to view a display apparatus; controlling, in a virtual three-dimensional space, an event on the basis of one or more of the first entered instructions and the second entered instructions acquired; generating a first image of said virtual three-dimensional space to be displayed on said head mounted display; and generating a second image of said virtual three-dimensional space to be displayed on said display apparatus, where the first image includes the first input apparatus, and where the second image does not include the second input apparatus.

Abstract: The game apparatus has an instruction input acquisition block configured to acquire information indicative of an entered instruction from a first input apparatus used by a first user whose head wearing a head mounted display on and information indicative of entered instruction from a second input apparatus used by a second user enabled to view a display apparatus; a control block configured to control, in a virtual three-dimensional space, an event on the basis of an instruction acquired by the instruction input acquisition block; a first image generation block configured to generate a first image of the virtual three-dimensional space to be displayed on the head mounted display; and a second image generation block configured to generate a second image of the virtual three-dimensional space to be displayed on the display apparatus.

Abstract: A reactance measurement apparatus has a series circuit has a first circuit including a first resistor and a second circuit including a reactance element, a first voltage generation unit for generating a first AC voltage to apply the same to the series circuit, a second voltage generation unit for generating a second AC voltage having a phase difference with respect to the first AC voltage, a multiplication unit for multiplying the second AC voltage and a second circuit voltage to generate a multiplication voltage, a measurement unit for measuring a voltage of a DC component of the multiplication voltage, a phase shift amount calculation unit for calculating a phase shift amount, and a reactance calculation unit for calculating a reactance of the reactance element based on the phase shift amount.

Abstract: A battery device having a chargeable and dischargeable battery; a detection unit that detects a state of the battery; and a control unit. The control unit calculates a value of a maximum charging current that can be supplied to the battery during charging of the battery on the basis of the state of the battery detected by the detection unit, and notifies a result of such calculation to a charging device.

Abstract: A reactance measurement apparatus has a series circuit has a first circuit including a first resistor and a second circuit including a reactance element, a first voltage generation unit for generating a first AC voltage to apply the same to the series circuit, a second voltage generation unit for generating a second AC voltage having a phase difference with respect to the first AC voltage, a multiplication unit for multiplying the second AC voltage and a second circuit voltage to generate a multiplication voltage, a measurement unit for measuring a voltage of a DC component of the multiplication voltage, a phase shift amount calculation unit for calculating a phase shift amount, and a reactance calculation unit for calculating a reactance of the reactance element based on the phase shift amount.