Abstract: An information processing device includes an acquisition unit configured to acquire detection data by processing a first detection result output from a first sensor configured to detect at least a feature of a user in a nearby region near a display device and to acquire position data by processing a second detection result output from a second sensor configured to detect a position of at least a part of an object in a display image displayed by the display device; and an identification unit configured to identify a user who would have written the object onto the display image by using the detection data and the position data.

Abstract: A portable terminal includes a wireless communication unit configured to perform data communication with a wireless tag in a non-contact manner, a position determination unit configured to determine a position of the portable terminal, a control unit configured to generate guide information for guiding the portable terminal to a communicable area where communication with the wireless tag is enabled on the basis of the position determined by the position determination unit if communication is disabled when communication with the wireless tag is performed, and a display unit configured to display the generated guide information.

Abstract: A portable terminal includes a wireless communication unit configured to perform data communication with a wireless tag in a non-contact manner, a position determination unit configured to determine a position of the portable terminal, a control unit configured to generate guide information for guiding the portable terminal to a communicable area where communication with the wireless tag is enabled on the basis of the position determined by the position determination unit if communication is disabled when communication with the wireless tag is performed, and a display unit configured to display the generated guide information.

Abstract: An engine driven welding machine in which a welding generator is driven by an engine, and the engine performs an idle operation when a welding operation is stopped by including an engine stop signal forming circuit which forms a stop signal for stopping an operation of the engine when time of the idle operation exceeds a predetermined time, a direct-current power supply connected to an output terminal of the welding machine, voltage detecting means which detects a voltage change of the output terminal, a restart detecting circuit which forms a restart signal for restarting the engine when the detected voltage by the voltage detecting means shows a predetermined change mode for starting the welding operation, and an engine control circuit which stops the engine in response to the stop signal, and restarts the engine in response to the restart signal.

Abstract: A shielded metal arc welding machine having a characteristic with a constant current output characteristic and a drooping output characteristic properly combined is provided. A shielded metal arc welding machine having a constant current output characteristic, characterized by having a desired drooping output characteristic, which has an optional drooping degree with a point at which a characteristic line of said constant current output characteristic intersects a welding load characteristic line L as a base point, and replaces said constant current output characteristic.

Abstract: An engine driven welding machine which is favorable in operability and has high reliability and reliably performs idle stop and restart is provided.

Abstract: An engine driven welding machine which is favorable in operability and has high reliability and reliably performs idle stop and restart is provided.

Abstract: A shielded metal arc welding machine having a characteristic with a constant current output characteristic and a drooping output characteristic properly combined is provided. A shielded metal arc welding machine having a constant current output characteristic, characterized by having a desired drooping output characteristic, which has an optional drooping degree with a point at which a characteristic line of said constant current output characteristic intersects a welding load characteristic line L as a base point, and replaces said constant current output characteristic.

Abstract: There is provided an engine driven arc welder adapted for converting a.c. output of welding generator into d.c. output to allow it to undergo switching control by using a switching circuit to detect an output of the switching circuit to control its ON/OFF period by the detected content to control a welding current. The engine driven arc welder has a load limiting function. In this case, AVR is employed in a feedback control loop for generator voltage. The circuit configuration includes a F/V characteristic circuit and an output suppression circuit for comparing a detected voltage of the welding generator with a predetermined reference voltage to deliver, when the detected voltage is lower than the reference voltage, a signal for suppressing a welding output to a constant current control circuit for controlling welding current so that it becomes equal to a fixed value.

Abstract: There is provided an engine driven arc welder adapted for converting a.c. output of welding generator into d.c. output to allow it to undergo switching control by using a switching circuit to detect an output of the switching circuit to control its ON/OFF period by the detected content to control a welding current. This engine driven arc welder further has a reference signal formation circuit for forming a reference signal such that when a detected voltage across welding terminals is higher than a first predetermined value, it has a first reference value.