Abstract: A drive device for a rotating electric machine having a stator including a stator winding and a rotor including a permanent magnet includes: a power conversion circuit which outputs a phase current to the stator winding; and a control unit which controls the power conversion circuit. If a phase voltage crest value relative to a voltage of DC power is defined as a modulation factor, the control unit decreases a current amplitude and a current advance angle of the phase current if a temperature of the permanent magnet is higher than a predetermined first threshold-value temperature and the modulation factor is larger than a predetermined threshold value, and increases the current amplitude and the current advance angle of the phase current if the temperature of the permanent magnet is higher than the first threshold-value temperature and the modulation factor is smaller than the threshold value.

Abstract: In a rotor in which magnet slots arranged in a V shape so as to open toward the outer circumferential side and having permanent magnets inserted therein are formed in a two-layer structure in a radial direction, the magnet slots in each layer are composed of a pair of slots formed between a center bridge located at the center and respective ones of two radially-outer bridges located between the outer surface of the rotor and the respective slots. Of magnetic fluxes generated from the permanent magnets, magnetic fluxes excluding magnetic fluxes for magnetically saturating the bridges are defined as effective magnetic fluxes. The rotor is configured such that the effective magnetic flux generated from the permanent magnet on the radially outer side is not greater than half the effective magnetic flux generated from the permanent magnet on the radially inner side.

Abstract: A rotor includes a rotor core fixed to a shaft, a pair of magnet slots arranged in a V-shape in the rotor core so as to be separated away from each other toward a radially outer side, permanent magnets inserted into the magnet slots, and a hole provided on the radially outer side of the magnet slots. The distance between each permanent magnet and the hole increases toward the radially outer side. The distance between an outer circumference of the rotor core and the hole is not less than the distance between each magnet slot and the outer circumference of the rotor core.

Abstract: In a rotor in which magnet slots arranged in a V shape so as to open toward the outer circumferential side and having permanent magnets inserted therein are formed in a two-layer structure in a radial direction, the magnet slots in each layer are composed of a pair of slots formed between a center bridge located at the center and respective ones of two radially-outer bridges located between the outer surface of the rotor and the respective slots. Of magnetic fluxes generated from the permanent magnets, magnetic fluxes excluding magnetic fluxes for magnetically saturating the bridges are defined as effective magnetic fluxes. The rotor is configured such that the effective magnetic flux generated from the permanent magnet on the radially outer side is not greater than half the effective magnetic flux generated from the permanent magnet on the radially inner side.

Abstract: A rotation angle detection device, including: a rotor; a stator including one bias magnetic field generation portion (BMFGP) and magnetic detection elements; and a rotation angle calculation processor calculating a rotation angle of the rotor from detection signals of the detection elements, wherein a surface of the rotor has convex and concave portions (CCPs), which change in “x” (“x”?1) cycles for a mechanical angle of 360, and a shape of the CCPs make the detection elements possible to obtain a sine wave, and wherein “a” (“a”?2) detection elements are arranged along a circumferential direction of the stator at equal intervals for one cycle of the CCPs—so as to be opposed to the surface of the rotor, and the BMFGP extends in the circumferential direction for one cycle of the CCPs so as to overlap with the “a” detection elements.

Abstract: A rotation angle detection device, including: a rotor; a stator including one bias magnetic field generation portion (BMFGP) and magnetic detection elements; and a rotation angle calculation processor calculating a rotation angle of the rotor from detection signals of the detection elements, wherein a surface of the rotor has convex and concave portions (CCPs), which change in “x” (“x”?1) cycles for a mechanical angle of 360, and a shape of the CCPs make the detection elements possible to obtain a sine wave, and wherein “a” (“a”?2) detection elements are arranged along a circumferential direction of the stator at equal intervals for one cycle of the CCPs-so as to be opposed to the surface of the rotor, and the BMFGP extends in the circumferential direction for one cycle of the CCPs so as to overlap with the “a” detection elements.

Abstract: A rotation angle detection device including: a rotor; a stator including “b” (b?3) magnetic detection portions (MDPs) each including a bias magnetic field generation portion and a magnetic detection element (MDE); and a rotation angle processor calculating a rotation angle of the rotor based on a detection by the (MDEs). The rotor has convex and concave portions (CCPs), which change in “x” cycles for a mechanical angle 360 (“x”?1) to make the MDEs possible to obtain a sine wave. There are arranged “b” MDPs along a circumferential direction of the stator for each cycle of the CCPs, which are arranged at intervals of a mechanical angle 360×(n×b+m)/(x×b), where “n” (n?0) represents, by a number of cycles, a deviation amount of each of the MDPs from a reference position in the circumferential direction, and “m” (1?m?“b”) represents a position of a MDP in an arrangement order.

Abstract: A rotation angle detection device including: a rotor; a stator including “b” (b?3) magnetic detection portions (MDPs) each including a bias magnetic field generation portion and a magnetic detection element (MDE); and a rotation angle processor calculating a rotation angle of the rotor based on a detection by the (MDEs). The rotor has convex and concave portions (CCPs), which change in “x” cycles for a mechanical angle 360 (“x”?1) to make the MDEs possible to obtain a sine wave. There are arranged “b” MDPs along a circumferential direction of the stator for each cycle of the CCPs, which are arranged at intervals of a mechanical angle 360×(n×b+m)/(x×b), where “n” (n?0) represents, by a number of cycles, a deviation amount of each of the MDPs from a reference position in the circumferential direction, and “m” (1?m?“b”) represents a position of a MDP in an arrangement order.

Abstract: A portable terminal obtains a first code used to obtain provision information and a second code, different from the first code, from a communication device. The portable terminal transmits the first and second codes to an information processing device, receives the provision information from the information processing device as a response to the transmission, and outputs the received provision information. The information processing device includes a first storage unit storing the first code and a second storage unit storing, by associating, the second code and the provision information. The information processing device receives the first and second codes from the portable terminal, obtains provision information associated with the received second code from the second storage unit when the received first code is stored in the first storage unit, and transmits the obtained provision information to the portable terminal. The first code is deleted in exiting from a specific area.

Abstract: A portable terminal obtains a first code used to obtain provision information and a second code, different from the first code, from a communication device. The portable terminal transmits the first and second codes to an information processing device, receives the provision information from the information processing device as a response to the transmission, and outputs the received provision information. The information processing device includes a first storage unit storing the first code and a second storage unit storing, by associating, the second code and the provision information. The information processing device receives the first and second codes from the portable terminal, obtains provision information associated with the received second code from the second storage unit when the received first code is stored in the first storage unit, and transmits the obtained provision information to the portable terminal. The first code is deleted in exiting from a specific area.

Abstract: A portable terminal obtains a first code used to obtain provision information and a second code, different from the first code, from a communication device. The portable terminal transmits the first and second codes to an information processing device, receives the provision information from the information processing device as a response to the transmission, and outputs the received provision information. The information processing device includes a first storage unit storing the first code and a second storage unit storing, by associating, the second code and the provision information. The information processing device receives the first and second codes from the portable terminal, obtains provision information associated with the received second code from the second storage unit when the received first code is stored in the first storage unit, and transmits the obtained provision information to the portable terminal. The first code is deleted in exiting from a specific area.

Abstract: An information processing apparatus stores function information that identifies, for each one of a plurality of functions, one or more devices capable of performing the function, receives a user instruction for executing a job from a first device of the plurality of devices, the user instruction instructing execution of at least one function that cannot be performed by the first device, identifies a second device of the plurality of devices that is capable of performing the at least one function of the user instruction using the function information, and controls the second device to transition from a power save mode to a normal operating mode, while keeping devices other than the second device to be in the power save mode.

Abstract: A document output system includes a document registration unit that registers, for each one of events, data of one or more documents in association with identification for identifying the event related to the documents in a memory, an acceptance unit that accepts an instruction for outputting the documents, the instruction including identification for identifying an event related to the documents to be output, and an output unit that outputs the documents associated with the identification of the instruction in a predetermined order as a series of the documents.

Abstract: A display control device includes an acquiring unit that acquires a display request of display information including a display item with respect to a device; a first storage unit that stores therein a minimum item size that is a minimum value of an item size of the display item displayed on a display screen on which the display information is to be displayed; an item size determination unit that sets, based on a screen size of the display screen, an item size of the display item when displayed on the display screen, to an item size that is equal to or larger than the minimum item size; and a display information generating unit that generates the display information including the display item having the set item size.

Abstract: A portable terminal obtains a first code used to obtain provision information and a second code, different from the first code, from a communication device. The portable terminal transmits the first and second codes to an information processing device, receives the provision information from the information processing device as a response to the transmission, and outputs the received provision information. The information processing device includes a first storage unit storing the first code and a second storage unit storing, by associating, the second code and the provision information. The information processing device receives the first and second codes from the portable terminal, obtains provision information associated with the received second code from the second storage unit when the received first code is stored in the first storage unit, and transmits the obtained provision information to the portable terminal. The first code is deleted in exiting from a specific area.

Abstract: A system includes a first apparatus capable of registering a plurality of apparatuses, and a second apparatus connected to the first apparatus via a network. The second apparatus transmits an inquiry request for inquiring presence of a first apparatus capable of registering on the network to all apparatuses on the network by broadcast, and when information indicating an access destination of the first apparatus is received, transmits a registration request for registering the second apparatus to the first apparatus to the received access destination.

Abstract: An information processing system includes an execution request unit that requests one or more multiple preregistered apparatuses to execute an operation, an authority information acquisition unit that acquires authority information that indicates user authority on the preregistered apparatus from at least one of the preregistered apparatuses, an authority management information generator that generates authority management information that indicates the user authority applied to the preregistered apparatuses based on the authority information that the authority information acquisition unit acquires, and a controller that controls whether or not to allow the execution request unit to request to execute the operation based on the authority management information.

Abstract: An information processing system includes electronic devices each including a display unit, and at least one information processing apparatus including a display unit. The information processing apparatus is able to communicate with the electronic devices via a network. The information processing system includes a first sharing unit configured to cause sharing of display contents of the display unit of a first electronic device of the electronic devices and the display unit of the information processing apparatus; and a second sharing unit configured to acquire, from the first electronic device, information of a second electronic device of the electronic devices that is operating in cooperation with the first electronic device, and cause sharing of display contents of the display unit of the second electronic device and the display unit of the information processing apparatus based on the information of the second electronic device.

Abstract: An information processing apparatus stores function information that identifies, for each one of a plurality of functions, one or more devices capable of performing the function, receives a user instruction for executing a job from a first device of the plurality of devices, the user instruction instructing execution of at least one function that cannot be performed by the first device, identifies a second device of the plurality of devices that is capable of performing the at least one function of the user instruction using the function information, and controls the second device to transition from a power save mode to a normal operating mode, while keeping devices other than the second device to be in the power save mode.

Abstract: A document output system includes a document registration unit that registers, for each one of events, data of one or more documents in association with identification for identifying the event related to the documents in a memory, an acceptance unit that accepts an instruction for outputting the documents, the instruction including identification for identifying an event related to the documents to be output, and an output unit that outputs the documents associated with the identification of the instruction in a predetermined order as a series of the documents.