Hiroyuki Ebinuma

Title: Hiroyuki Ebinuma: Innovator in Video Signal Processing

Introduction

Hiroyuki Ebinuma is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of video signal processing, holding a total of 5 patents. His work has advanced the technology used in various electronic devices, particularly in enhancing video quality.

Latest Patents

Ebinuma's latest patents include an automatic gain control circuit in video signal processing devices. This circuit comprises a black level detecting unit that identifies the black level from a video signal, a white level detecting unit that detects the white level, and an analog-to-digital converter that adjusts the dynamic range of the video signal based on the difference between these levels. The adjustment ensures that the video signal maintains optimal brightness levels.

Another significant patent is the sync separation circuit, which separates a synchronizing signal from a video signal. This circuit includes a minimum level detecting section that identifies the minimum level of the video signal, a sync tip level detecting section that detects the sync tip level, and a pedestal level detecting section that identifies the pedestal level. The slice level setting section then establishes a slice level based on the detected values, ensuring accurate synchronization in video playback.

Career Highlights

Throughout his career, Hiroyuki Ebinuma has worked with prominent companies such as Sanyo Electric Co., Ltd. and Sanyo Semiconductor Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in video technology.

Collaborations

Ebinuma has collaborated with notable colleagues, including Toru Okada and Chikara Sakyo. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

Hiroyuki Ebinuma's contributions to video signal processing through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the technology we use today.