Toshiaki Kitahara

Title: Toshiaki Kitahara: Innovator in Video Display Technology

Introduction

Toshiaki Kitahara is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of video display technology, holding a total of 5 patents. His innovative work has paved the way for advancements in video display apparatus and methods.

Latest Patents

One of Kitahara's latest patents is a "Video display apparatus with vertical scan velocity modulation and video display method thereof." This invention features a parallel scanning circuit that outputs a parallel scanning signal to create forward and backward scanning lines. It includes a vertical correlation detection circuit that identifies changes in luminance in the vertical direction, producing a movement control signal for the scanning line on the screen. Additionally, a retrace period reversion circuit modifies the movement control signal during the retrace period, while a clamping circuit ensures the signal is clamped to a predetermined DC voltage. The synthesized signal is then fed to a vertical velocity modulation coil.

Another notable patent is related to a "Horizontal deflection circuit and television receiver." This invention involves a video signal conversion part that removes a specified number of horizontal scanning lines from the vertical blanking interval of an input video signal. It reallocates the time corresponding to the deleted lines to the horizontal blanking intervals of the remaining lines, thereby extending the horizontal blanking interval. The circuit also includes a synchronizing signal separation circuit that extracts horizontal and vertical synchronizing signals from the output video signal.

Career Highlights

Toshiaki Kitahara has been associated with Matsushita Electric Industrial Co., Ltd., where he has contributed to various projects and innovations in video technology. His work has been instrumental in enhancing the performance and quality of video displays.

Collaborations

Throughout his career, Kitahara has collaborated with notable colleagues, including Yutaka Nio and Hideyo Uwabata. These collaborations have further enriched his contributions to the field.

Conclusion

Toshiaki Kitahara's innovative spirit and dedication to advancing video display technology have resulted in several impactful patents. His work continues to influence the industry and inspire future innovations.