Kawasaki Steel Corporation

Megachips Corporation

Hideo Nakano

Masato Yoneda

Yoshihiro Ishida

Hiroshi Yoshizawa

Hitoshi Sugiyama

Junichi Komine

In the image display device, the vignetting pattern generator generates a vignetting pattern image composed of image data having inverted brightness characteristics obtained by inverting brightness characteristics of a panel of the liquid crystal display. The display controller carries out control to cause a pattern image obtained by combining a flat pattern image in gray composed of image data having a uniform grayscale level and the vignetting pattern image to be displayed on the liquid crystal display. And the correction data calculator calculates correction data for correcting brightness unevenness of an input image based on brightness values of image data of captured images obtained by imaging, by the camera, the pattern images displayed on the liquid crystal display.

Image display device, correction data generation method, and image correction device and method, as well as image correction system

An associative memory device having a high speed and good performance is provided without degrading the simple design of a peripheral circuit of a conventional associative memory. The associative memory device has an N-bit first buffer and an M-bit second buffer in which W-bit data is stored through a data input port, detection device for detecting that the W-bit data is input to the first buffer k times or to the second buffer r times, a switch for alternately switching buffers in which the W-bit data is stored, and a search control for performing a search operation for a memory region by using data in the first or second buffer. By using data in the first or second buffer, during the search operation for the memory region of the associative memory, the W-bit data for the next search operation is input to the second or first buffer.

Associative memory device

Growing community of inventors

Chiba, Japan

Hideo Nakano