Hiroyasu Shindou

Title: Innovations of Hiroyasu Shindou

Introduction

Hiroyasu Shindou is a notable inventor based in Moriguchi, Japan. He has made significant contributions to the field of display technology, holding a total of 5 patents. His work focuses on enhancing character display systems, particularly in television screens.

Latest Patents

One of Shindou's latest patents is a character display control circuit. This invention involves storing data about display start positions in an H register. An H start counter counts an original oscillation signal, ORGCLK, after the termination of a flyback period, while a comparator detects the start position. The design incorporates flip flops and NOR gates to create a clock with a cycle one and a half times longer than that of the original oscillation signal. This allows for the selection of either the 1.5-fold cycle signal or the original oscillation signal based on the mode signal level. Consequently, the clock OSDCLK can maintain a frequency matching the original oscillation signal up to the start position, enabling consistent character display regardless of magnification.

Another significant patent is a character display device designed for displaying characters on television screens. This device writes control data indicating the vertical start positions of display characters into specific locations of a video RAM. During each horizontal synchronizing period, all control data is read sequentially from the video RAM and set in a vertical start position register. A match is established between the vertical position counter and the vertical start position register. When a match occurs, the video RAM is accessed using the control data as the vertical position start address after the horizontal synchronizing period.

Career Highlights

Hiroyasu Shindou is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of display technology. His work has significantly impacted the way characters are displayed on screens, enhancing user experience and functionality.

Collaborations

Throughout his career, Shindou has collaborated with notable colleagues, including Masami Harigai and Tsutomu Nakazawa. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Hiroyasu Shindou's contributions to display technology through his innovative patents have made a lasting impact. His work continues to influence the development of character display systems, showcasing the importance of innovation in technology.