Canon Kabushiki Kaisha

Masaru Tomabechi

Mitsuru Tada

Atsushi Miura

A panhead capable of achieving cost reduction and miniaturization is provided. The panhead including a fixed portion and a movable portion that is equipped with an image pickup unit and is movable together with the image pickup unit with respect to the fixed portion includes a first communication section configured to include a first moving-rotationally portion that communicably connects the fixed portion side and the movable portion side and, when the movable portion moves, is able to move rotationally, and a second communication section configured to include a second moving-rotationally portion that communicably connects the fixed portion side and the movable portion side in a non-contact state and, when the movable portion moves, is able to move rotationally around the same axis as the first moving-rotationally portion. The second moving-rotationally portion includes a hollow portion in which at least a portion of the first moving-rotationally portion is disposed.

Panhead and image pickup apparatus that are capable of achieving cost reduction and miniaturization

A communication system configured to perform wireless communication using electromagnetic field coupling, the communication system includes a transmission circuit, at least two long couplers, a reception circuit, a short coupler, and a signal control unit, wherein the transmission circuit outputs a signal to one end of each of the at least two long couplers, wherein the reception circuit receives the signal output from the short coupler, wherein the signal is input from at least one of the at least two long couplers to the short coupler by electromagnetic field coupling, and wherein the signal control unit controls the signal output from the transmission circuit.

Communication system

A communication system includes a transmission unit configured to output a signal, an attenuation unit configured to attenuate the signal output from the transmission unit, a first coupler having one end portion being connected to the transmission unit via the attenuation unit, a termination unit that is connected to the other end portion of the first coupler, and a second coupler configured to input a signal to the first coupler using at least one of electric field coupling and magnetic field coupling, wherein the first coupler or the second coupler is configured to be movable so that a relative position between the first coupler and the second coupler changes.

Communication system and communication apparatus

A communication apparatus includes a first substrate including a first transmission line, a metal portion functioning as a ground for the first substrate, spaced apart from the first transmission line, and a first termination circuit configured to terminate the first transmission line. The first substrate is fixed to any one of surfaces of the metal portion other than a surface where the first transmission line is disposed.

Communication apparatus and communication system

In a display apparatus, a light-emitting unit emits light of a first color; a converting unit emits light of the first color, a second color, and a third color responding to irradiation of the light of the first color from the light-emitting unit; a detecting unit outputs a first detected value in accordance with brightness of the light of the first color, and a second detected value in accordance with brightness of the light of the second color; a correcting unit corrects components corresponding to the first color, the second color, and the third color of input image data, based on the first and second detected values, and a display unit displays an image on a screen by transmitting the light emitted from the converting unit, based on the corrected input image data.

Growing community of inventors

Yokohama, Japan

Masaru Tomabechi