Alps Alpine Co., Ltd.

Kyoto University

Nihon Medi-physics Company, Limited

National Hospital Organization

Fuji Photo Film Company, Limited

Funai Electric Engineering Company Limited

Tsutomu Abe

Ikuyasu Miyako

Hiroyuki Kimura

Hideo Saji

Yuki Okumura

Akihiro Izawa

Mitsuhide Naruse

Yurie Fukui

Kei Akama

Miho Ikenaga

Nobuya Kobashi

Yoshihiro Doi

Takayuki Kobayashi

Tsuneo Komura

Naoto Usa

A motor module includes a motor and a rotation angle detector including a rotation angle calculator that calculates a rotation angle based on a voltage and an electric current of the motor, a first signal generator that generates a first signal based on a ripple component included in the electric current, an operation part that corrects the rotation angle based on the first signal and the rotation angle, and a rotation information calculator that calculates information on rotation of the motor based on an output from the operation part. The operation part outputs, to the rotation angle calculator, a command to correct the rotation angle when the first signal is generated for the first time while the rotation angle is within a predetermined angle range, and ignores the first signal that is generated for the second or subsequent time while the rotation angle is within the predetermined angle range.

Motor module, rotation angle detector, and method for detecting rotation angle of motor

A motor module includes a motor including a commutator, and an apparatus that is attached to the motor and obtains information on rotation of the motor. The apparatus includes a rotation angle calculator that calculates a rotation angle of the motor based on a voltage between terminals of the motor and an electric current flowing through the motor, a first signal generator that generates a first signal based on a ripple component included in the electric current flowing through the motor, a second signal generator that generates a second signal indicating that the motor has rotated by a predetermined angle based on the first signal and the rotation angle, and a rotation information calculator that calculates the information on the rotation of the motor based on an output from the second signal generator.

Apparatus and method for obtaining information on rotation of DC commutator motor

A rotation angle detector includes a rotational angular velocity calculator that calculates a rotational angular velocity of a motor based on an inter-terminal voltage of the motor detected by a voltage detector and a current flowing through the motor and detected by a current detector; a ripple detector that detects a ripple component included in the current; and a failure detector that detects a failure of any one of the voltage detector, the current detector, and the ripple detector based on outputs from the detectors. The failure detector determines that the failure has occurred when a state, where the outputs from two of the voltage detector, the current detector, and the ripple detector indicate normal rotation and the output from the remaining one of the voltage detector, the current detector, and the ripple detector does not indicate normal rotation, continues for a predetermined period of time.

Motor module, rotation angle detector, and method for detecting failure of rotation angle detector

Provided is a medicament comprising the compound represented by the following general formula (1) or a salt thereof: In the formula, R, R, R, R, R, X, X, and Xare defined. Methods for producing various radioactive compounds are also provided.

2-(3-pyridinyl)-1H-benzimidazole derivative compound and medicament containing same

Provided is a compound represented by general formula (1) or a salt thereof as well as a medicine containing the compound or the salt. In the formula, R, R, R, R, R, X, X, and Xare defined.

2-(3-pyridinyl)-1H-benzimidazole derivative compound and medicine containing same

The present invention relates to a wireless communication system having improved PLL circuits in the RF transmitter and receiver sections. The PLL circuits in the wireless communication system according to the present invention include time constant controllable filters. A series circuit of capacitor and resistor detects turn-on of the power switch for the PLL circuits to generate an output signal to be applied to the filters, thereby controlling the time constant of the filters in the PLL circuits to a lower value than normal for a given time after power-on of the PLL circuits.

Wireless communication system having improved PLL circuits

A still image trimming apparatus is disclosed which is capable of automatically creating a video signal representing a still image within an area set by a trimming frame while displaying, on a monitor device, a combined image comprising a still image in a photographic or similar print and the trimming frame for setting the trimming area superimposed on the still image. Also, in the still image trimming apparatus, in trimming and recording onto a recording medium, the divisional images of a still image corresponding to the structure of a multi-screen comprising a plurality of display screen arranged from a plane manner, without cutting a still image recorded from a photographic or a similar print into equal parts, the still image can be trimmed to correspond with the structure of the multi-screen device while monitoring a multi-image on the screen of the monitor device.

Still image trimming apparatus

Growing community of inventors

Tokyo, Japan

Tsutomu Abe