Company Filing History:
Years Active: 1996-2005
Title: Masaaki Iwanaga: Innovator in Video Signal Processing
Introduction
Masaaki Iwanaga is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of video signal processing, holding a total of 4 patents. His work focuses on enhancing the efficiency and accuracy of video signal conversion.
Latest Patents
One of Masaaki Iwanaga's latest patents is a video signal processing device designed for automatically adjusting the phase of sampling clocks. In this device, an input video signal representing a test pattern with two gradations of black and white is converted to 8-bit data by an A/D converter. This conversion occurs in synchronism with sampling clocks generated in a write-in control circuit, and the data is subsequently stored in a memory. An MPU reads out picture element data from the effective area of the video signal stored in the memory. It calculates the difference between the average values of white-level and black-level picture element data, as well as the total variance between these two sets of data. The MPU then controls the phase of the sampling clocks to maximize the difference and minimize the variance, ensuring that the sampling phase is automatically adjusted to the optimum value during the conversion of the video signal to digital data.
Career Highlights
Masaaki Iwanaga is currently employed at Hitachi, Ltd., where he continues to innovate in the field of video technology. His work has been instrumental in advancing the capabilities of video signal processing devices.
Collaborations
Masaaki has collaborated with notable coworkers such as Kazutaka Naka and Atsushi Maruyama, contributing to various projects and innovations within his field.
Conclusion
Masaaki Iwanaga's contributions to video signal processing exemplify the impact of innovative thinking in technology. His patents reflect a commitment to improving the efficiency of digital data conversion, making significant strides in the industry.