Company Filing History:
Years Active: 1994-2007
Title: Yoshiaki Suenaga: Innovator in Memory Devices and CD Technology
Introduction
Yoshiaki Suenaga is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the fields of memory devices and CD technology. With a total of 5 patents to his name, Suenaga continues to push the boundaries of innovation.
Latest Patents
One of his latest patents is a memory device with a built-in test function and method for controlling the same. This invention employs a test circuit that utilizes hardware to test a memory cell within a memory block. The address of any error cell detected is stored in either a first or second error address register. Access made by a processor to the address of the error cell is detected by a first or second address comparator. Data is then written to a first or second correction register, which serves as an alternative cell, or data is read from one of the registers.
Another notable patent is the CD subcode transfer system for transferring correct Q subcodes. This system includes a means for receiving a CD signal and outputting, along with a subcode, digital data derived from the CD signal after the digital data has been error corrected and demodulated. The system also determines whether a CRC check bit for Q channel data of the subcode is correct and whether the Q channel data is accurate upon comparison with preceding Q channel data. Furthermore, it includes a means for transferring the subcode and attaching it to the digital data when the CRC check bit and Q channel data are confirmed to be correct.
Career Highlights
Yoshiaki Suenaga is currently employed at Rohm Co., Ltd., where he continues to innovate and develop new technologies. His work has had a significant impact on the industry, particularly in enhancing the reliability and efficiency of memory devices and CD technology.
Collaborations
Suenaga has collaborated with notable coworkers such as Tatsuo Kishino and Shigemi Chimura. Their combined expertise has contributed to the successful development of various innovative technologies.
Conclusion
Yoshiaki Suenaga is a distinguished inventor whose work in memory devices and CD technology has led to multiple patents and advancements in the field. His contributions continue to shape the future of technology and innovation.