Sony Corporation

Sanyo Denki Co., Ltd.

Sony Mobile Communications Inc.

Yuji Ide

Michio Kitahara

Susumu Takatsuka

Shunichi Miyazaki

Yoshihito Ishibashi

Taizo Shirai

Satoshi Yamazaki

Tetsuya Naruse

Katsuyuki Tanaka

Koichi Sakumoto

Masahiro Uno

Miwa Ichikawa

Kazuhisa Funamoto

Toyohide Isshi

Shin Takanashi

Yuji Matsumoto

Toshio Hiraide

Yoshiyuki Usui

A motor control apparatus includes: a smoothing capacitor; an inverter circuit; a torque limiter; and a field-weakening control device. The smoothing capacitor smooths the direct current power. The inverter circuit converts the smoothed direct current power to alternating current power. The torque limiter limits motor torque based on a torque limit value calculated from a direct current voltage applied to the smoothing capacitor, limiting the motor torque in a power running direction to a first torque value when the direct current voltage drops to a first threshold. The field-weakening control device weakens a field and raises an induced motor voltage and the direct current voltage when the power running direction motor torque is limited to the first value. The torque limiter limits the power running direction motor torque to a second value greater than the first value when the direct current voltage rises from the first to a second threshold.

Motor control apparatus

A motor control apparatus includes: a converter circuit; an inverter circuit; a current detector; a regenerative resistor; a regenerative resistor controller; and a control device. The converter circuit converts alternating current from an alternating current power supply to direct current, converts regenerative direct current from the inverter circuit to regenerative alternating current, and further supplies the regenerative alternating current to the alternating power supply. The inverter circuit converts the direct current to alternating current for driving a motor, and converts regenerative alternating current from the motor to the regenerative direct current. The regenerative direct current from the inverter circuit passes through the resistor. The regenerative direct current passes thorough the resistor upon the current detector detecting the regenerative current exceeding a predetermined value. The control device limits torque or speed of the motor upon the temperature and/or power consumption of the resistor exceeding a threshold.

An impact of a delay time on a conversation is reduced. A voice packet is transmitted to a distribution server. A user is notified of being in a wait time from when transmission of the voice packet stops until when voice packet transmission becomes available next. The wait time is calculated on the basis of a first delay time that is a delay time between a local terminal and the distribution server and a second delay time that is the maximum delay time among delay times between a plurality of terminals including the local terminal and the distribution server. The user can easily know the speaking timing from the local terminal, and speech from the local terminal and speech from another terminal can be made not to mix.

Voice communication terminal, information processing method for voice communication terminal, distribution server, and information processing method for distribution server

A communications server comprises a data receiver configured to receive status data indicating, for each communication terminal of a set of communication terminals, a current device status of that communication terminal; a terminal manager configured to assign each communication terminal of the set of communication terminals to one or more communication terminal groups in dependence upon the respective status data for that communication terminal; and a communications controller to control the transmission of communications data to each of the set of communication terminals in dependence upon the respective communication terminal group to which that communication terminal is assigned by the terminal manager.

Communications server and method

An information processing including a display; a first sensor configured to detect a first object that comes into contact with or approaches the display based on a change in a magnetic field; and a second sensor configured to detect a second object that comes into contact with or approaches the display based on a change in capacitance or resistance.

Terminal device and touch input method

A communication device includes a communication unit that communicates with a first communication device or a second communication device by using human body communication, with regard to setting information for establishing communication between the first communication device and the second communication device. A communication device includes a communication unit that communicates with a third communication device by using human body communication with regard to setting information for establishing communication with a second communication device, and establishes communication with the second communication device based on the setting information. A communication device includes a communication unit that communicates with a third communication device by using human body communication with regard to setting information for establishing communication with a first communication device, and establishes communication with the first communication device based on the setting information.

Communication device, communication method, and communication system

Provided is an information processing apparatus including a sensor data obtaining unit configured to obtain predetermined information from a sensor, the sensor obtaining the predetermined information by sensing, and a key generation unit configured to generate key information for use in an authentication process, based on the information which is obtained by the sensor data obtaining unit during a predetermined period of time.

Information processing apparatus, information processing method, and recording medium

An apparatus and method for communicating between a first device and second device, where each device includes a motion sensor. Communication functions are triggered by comparing motion data derived from each device. For example, when the first device is worn on a user's wrist (e.g., a smartwatch) and the second device (e.g., a smartphone) is held in the user's hand corresponding to the user's wrist, then moving the hand and devices results in correlated motion data between the devices. This correlated motion indicates the devices correspond to the same user. Further, human-body communication between the devices provides additional indicia that the devices correspond to the same user. Thus, based on the above-identified correlated motion and human-body communication the same user can be inferred and predefined communication task between the devices can be performed, such as unlocking the devices, exchanging identification codes, or exchanging other information.

Motion-correlation control system to control communication of a wearable device

Embodiments include systems of and methods for an electronic device having a radio communication processor connected to one or more transmission antennas, wherein each of the one or more transmission antennas are configured to transmit a signal; a receiving antenna connected to the radio communication processor and configured to receive the signal transmitted from the one or more transmission antennas; an attenuation measuring device configured to measure attenuation of the transmitted signal based on the signal received by the receiving antenna; and a controller configured by circuitry to determine a surrounding air or water environment of the electronic device based on the measured attenuation.

Device environment determination

An information processing apparatus that acquires image data captured by an image capturing device; performs an analysis on the image data prior to cropping the image data for display to detect a specified image from the image data; generates an image for display by cropping the image data; controls a display to display the image for display; and executes predetermined processing when the specified image is detected in the image data as a result of performing the analysis on the image data prior to the cropping.

Terminal device and image capturing method

A motor control device includes a model control system that controls a motor machine model position using a target value (a position instruction after differentiation) related to a position instruction, and a feedback control system that controls a motor position using the target value (a position instruction after differentiation) related to the position instruction and an amount of control (model position) of the model control system. The feedback control system controls the motor position using the amount of control (model position) of the model control system at all times.

Motor control device

A terminal apparatus including a display unit disposed on a case and is configured to display an image; a first camera disposed on a surface on which the display unit performs image display; a second camera disposed on a surface opposite the surface on which the first camera is disposed; a plurality of microphones disposed on the case; a sound processing unit that detects sound transmitted from a sound source on a side of the first camera with sound signals obtained by at least one of the plurality of microphones; and an image processing unit that combines a first image which is captured by the first camera or is stored in advance with a second image captured by the second camera on the basis of a result of the detection of sound transmitted from the sound source on the side of the first camera.

Terminal apparatus for combining images from two different cameras based on detected sound

A motor control system of the present invention includes an accurate electrical insulation deterioration detecting system. A voltage divider circuit is arranged between a negative DC output portion and a ground, through a normally open switch circuit. A detecting operation control section closes the normally open switch while a circuit breaker is opened, and places at least one of transistors electrically connected to a positive DC output portion into a conductive state, from among six transistors included in three arm circuits. A voltage across the first resistor is inputted as a divided voltage into a voltage comparator of a voltage comparison section. The voltage comparison section compares a divided voltage outputted from the voltage divider circuit and a reference voltage using the voltage comparator and outputs an alarm signal if the divided voltage exceeds the reference voltage.

Motor control system including electrical insulation deterioration detecting system

A motor control system suppresses vibration of a machine base and achieves high-speed positioning without using a special sensor but using a model control system. A first feedback section outputs a first feedback command generated based on model machine base position information and containing at least position information on the machine base. A second feedback section outputs a second feedback command containing a filtered model torque command. A differential between the sum of the first feedback command and the second feedback command obtained by a second addition section and the model torque command is calculated to give the differential to an input portion of a model torque command low-pass filter and an input portion of a torque command low-pass filter. The model control system gives a model position command to a position controller as a position command, and model machine base position information generated based on the model position command is added to a speed command input from the position controller to a speed controller.

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Tokyo, Japan

Yuji Ide