Kabushiki Kaisha Toshiba

Ihi Corporation

Pioneer Electronic Corporation

Shiro Nagaoka

Tatsuhiko Ikehata

Kei Tashiro

Kuniaki Takahashi

Tatsuro Abe

Tsuyoshi Hagiwara

Toyokazu Aizawa

Takahisa Yoneyama

Hiroto Yoshihara

Yasuhito Ambiru

Shigeo Yamashita

Jun Ootsubo

A power transmitter includes: a first coil that wirelessly transmits the electric power to a second coil of a power receiver; a converter including a DC/AC converter that converts DC electric power into AC electric power and supplies the AC electric power to the first coil; and a controller that brings a power value of the DC electric power or the AC electric power close to a power command value by frequency control of changing a frequency of the AC electric power. The controller performs, when the frequency at which the power value reaches the power command value is included in a used frequency band used by another device, frequency change process of changing the frequency so that the frequency becomes a frequency different from the used frequency band while performing constant power control of maintaining a state in which the power value matches the power command value.

Power transmitter

A power transmitter is a device for wirelessly supplying power to a power receiver, including: a power converter configured to convert power supplied from a power source into direct current (DC) power; a DC/alternating current (AC) converter configured to convert the DC power into AC power; a capacitor configured to be provided at an input of the DC/AC converter; and a controller configured to perform a discharge control of the capacitor after the power converter stops, wherein the controller performs the discharge control by changing at least one of a driving frequency and a phase shift amount of the DC/AC converter so that power supplied to the DC/AC converter by the capacitor is equal to or lower than withstand power of the DC/AC converter.

A power transmitter according to an aspect of the present disclosure includes a first coil to wirelessly transmit power to a second coil of a power receiver; a converter to receive direct current (DC) power, convert the DC power into alternating current (AC) power, and supply the AC power to the first coil; and a controller to execute power control for causing power supplied to a load to approach desired power. The controller executes frequency control of the AC power and at least one control of phase shift control of the converter and voltage control of the DC power as the power control. When the power supplied to the load cannot be caused to approach the desired power by the frequency control, the controller executes at least one of the phase shift control and the voltage control.

Power transmitter and wireless power transfer system

A power transmitter according to one aspect of the disclosure includes: a power converter that converts a first AC power supplied from an AC power source into a DC power; a first detector that detects an electric current of the DC power; a feedback signal generator that generates a feedback signal based on the electric current of the DC power; and a controller that performs a feedback control on the electric power supplied to a power receiver based on the feedback signal. The feedback signal generator generates a canceling waveform to reduce a ripple caused to the DC power due to zero crossing of a voltage of the first AC power and generates the feedback signal based on the electric current of the DC power and the canceling waveform.

According to one embodiment, a capturing apparatus includes a capturing unit configured to capture a moving image video, a storage unit configured to store the moving image video captured by the capturing unit, an operation unit configured to include a plurality of keys used to instruct playback of the moving image video stored in the storage unit, a skip playback unit configured to play back the moving image video while skipping the moving image video at predetermined time intervals every time a predetermined operation is made on the operation unit, and a playback control unit configured to switch the time intervals skipped by the skip playback unit based on the total playback time period of the moving image video.

Playback apparatus

An embodiment of a camera apparatus includes transferring a compressed playback streaming signal output from a recording medium to a map defined in a memory circuit, decoding the transferred playback streaming signal by a decoder, converting the decoded signal to a YUV signal in an image processing unit, transferring the converted signal to the map as a YUV signal, generating a magnified or reduced image from the YUV signal in the image processing unit, and storing the image on the map, overlaying a magnified or reduced image prepared on the map according to a magnified playback request, and outputting the overlaid image for seeking an output position.

Camera apparatus with magnified playback features

In an image pick-up apparatus of the invention, when capturing is started, a chapter formation-commanding portion transfers a chapter table to a memory. When a user depresses a chapter formation button, a chapter is formed in an empty table of the chapter table. After completion of the capturing, the chapter formation-commanding portion transfers the chapter table stored in the memory to a storage portion. By performing the operation described above, a chapter can be formed in an arbitrary time position.

Image pick-up apparatus

From a time point at which a storage capacity reaches a certain remaining capacity with respect to a limit value of 4 GB per one file depending on a file system, a subtraction time-managing portion (A) changes photographing elapsed time display () which is displayed on a display picture of a liquid crystal display portion () to subtraction time display () in which residual time until 4 GB is reached is continuously subtracted in the inside of a portable image pickup device (). Hence, a photographer can be visually informed of timing at which the photographing blank time period will occur. As a result, the photographer can be previously given the opportunity for the judgment about whether the photographing should be continuously performed or the current photographing should be ended to start new photographing.

Portable image pickup device

Capturing apparatus

A concept such as an album is introduced with respect to management and arrangement of image files, and several albums are electronically classified and managed for an electronic camera apparatus. According to one embodiment, a method comprises capturing an image, recording the image as an image file, creating a plurality of albums used for classifying and arranging the image file, and displaying album identifier information corresponding to each of the created plurality of albums during the shooting mode or the playback mode.

Electronic camera apparatus and operation guide

According to an embodiment of the invention, in a digital video camera using a non-tape recording medium, the user can select whether to save a moving image file in a divided form or as one file, when recording a moving image, by changing the function of a REC button. When one moving image file has been saved in a divided form, a moving image file to be reproduced is easily searched, and a moving image is quickly played from an object chapter, or from a divided sub-file.

Digital video camera and mode changing method

There is disclosed a digital still camera in which a direction and speed of a tracing operation by user's fingertips on a touch panel are judged and a dynamic image reproduction process is executed in accordance with the direction and speed. For example, fast forward/rewind reproduction of a dynamic image is executed in response to a long and fast tracing operation to the right from the left or to the left from the right.

Digital still camera and user instruction input method

A digital camera which converts a picked-up optical image of an object into digital image data comprises a memory card slot part and a disk drive part. Digital image data can be transferred between a memory attached to the memory card slot part and a small disk inserted into the disk drive part.

Growing community of inventors

Ome, Japan

Shiro Nagaoka