Hitachi, Ltd.

Kouichi Sugimoto

Tatenori Jinriki

Kiyohide Koizumi

Takeshi Abe

Takaaki Matono

Masato Shibayama

Toshihiko Matsuzawa

Toyohide Hamada

Koichi Sudo

Yasuhiro Kasahara

Makoto Kitamura

Yasuhiro Tomita

Fumiyoshi Akiyama

Hitoshi Kusakawa

The present invention aims at providing an image display apparatus capable of displaying both a television signal and an image signal supplied from a personal computer with a high picture quality on a high definition display unit having 1024 by 768 pixels. In order to achieve this object, an image display apparatus according to the present invention includes an NTSC-VGA conversion circuit for converting a television signal to a signal having 640 by 480 pixels and corresponding to the non-interlacing VGA standard, a switch unit for selecting and outputting either the signal outputted from the NTSC-VGA conversion circuit and an inputted image signal from a personal computer, and a VGA-XGA conversion circuit for converting a number of pixels of a signal outputted from the switch unit to a number of pixels 1024 by 768 substantially equivalent to the number of the display unit.

Image display apparatus capable of displaying personal computer signals

An industrial robot comprising: a base; a stand rigidly erected on the base; a shoulder securely mounted on the stand; a first arm consisting of upper and lower levers with the base portion pivoted to the shoulder so that the arm can be turned about a first vertical axis; a second arm having its one end pivoted to the other end of the first arm between the upper and lower levers so that the second arm can be turned about a second vertical axis; a vertically movable shaft so supported by the second arm as to allow the linear movement of the shaft along a third vertical axis; a rack parallel to the vertically movable shaft; a guide means for guiding the rack relative to the second arm in only the vertical direction; a coupling means for connecting the vertically movable shaft and the rack at their both ends; a first drive means secured to the shoulder to rotate, through a first power transmission means, the first arm about the first vertical axis; a second drive means secured to the shoulder to rotate, through a second power transmission means, the second arm about the second vertical axis; and a third drive means secured to the second arm to drive the rack in vertical direction through a third power transmission means.

Industrial robot

Growing community of inventors

Yokohama, Japan

Kouichi Sugimoto