This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1980.
Company Filing History:
Years Active: 1980
Title: Ryoichi Ohnishi: Innovator in Facsimile Communication Systems
Introduction
Ryoichi Ohnishi is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of communication technology, particularly in the development of facsimile communication systems. His innovative approach has led to the creation of a unique patent that enhances the efficiency of transmitting images.
Latest Patents
Ohnishi holds a patent for a facsimile communication system. This system utilizes binary signals from picture elements arranged in rows and columns of the subject copy. These signals are successively applied to a group of shift registers and are suitably time-delayed under the control of clock pulses. The design allows signals from reference picture elements for each object picture element to simultaneously enter two logic circuits, which are provided for high and low scanning resolution. The logic circuits calculate predicted values for each object element following respective prediction functions. The circuit for the scanning resolution used delivers the predicted value to an exclusive OR gate, which is also supplied with the actual signal from the same object element. Each time the gate determines a discord with the prediction, a coder delivers coded serial signals having predetermined variable lengths, dependent upon the number of pulses counted up to that time by the coder. Additionally, the system refers to picture elements farther distant from the object element, disclosing generized prediction functions.
Career Highlights
Ohnishi is associated with Mitsubishi Electric Corporation, where he has been able to apply his expertise in communication technologies. His work has been instrumental in advancing the capabilities of facsimile systems, making them more reliable and efficient.
Collaborations
Throughout his career, Ohnishi has collaborated with notable colleagues such as Syuzi Iwata and Takayoshi Semasa. These collaborations have contributed to the development of innovative solutions in the field of communication technology.
Conclusion
Ryoichi Ohnishi's contributions to facsimile communication systems exemplify the impact of innovative thinking in technology. His patent reflects a significant advancement in the way images are transmitted, showcasing his role as a key inventor in this field.