Itsuko Ishida

Title: Innovations of Itsuko Ishida

Introduction

Itsuko Ishida is a notable inventor based in Itami, Japan. She has made significant contributions to the field of memory apparatus and data processing. With a total of 2 patents, her work focuses on enhancing the efficiency and functionality of memory systems.

Latest Patents

One of her latest patents is a memory apparatus and method capable of setting the attribute of information. This innovative cache memory apparatus allocates memory regions based on information attributes. The required memory region corresponding to the attribute is accessed before caching is implemented. This approach enables a considerable reduction in apparatus that would otherwise need to be duplicated among different chips corresponding to the number of information attributes. In a multiple data processing implementation, cache memory regions are allocated for each data processor. The required memory regions of the cache memory are accessed in accordance with information specifying the data processor before caching is carried out. To avoid data collision when the main memory data is substantially rewritten, and when data having the same address and different access types exist simultaneously, data representing the type of access is stored. In response to a change in access, all data signals stored in each way are nullified so that a plurality of data stored in the memory regions is not simultaneously output.

Another significant patent is the plural cache architecture for real-time multitasking. In a data processor, when there is any cache memory not being activated after the whole data processor has been activated, a signal is delivered to a bus driver, and then a data processing unit is connected to a system bus. During the period from when the whole data processor has been activated to when all the cache memories start to be activated, the data processing unit is connected to the system bus so that data can be transmitted and received between the data processing unit and peripheral devices.

Career Highlights

Itsuko Ishida is currently employed at Mitsubishi Electric Corporation, where she continues to innovate in the field of data processing and memory systems. Her work has been instrumental in advancing technology in these areas.

Collaborations

Some of her notable coworkers include Masayuki Hata and Tatsuo Yamada, who have collaborated with her on various projects.

Conclusion

Itsuko Ishida's contributions to memory apparatus and data processing have made a significant impact in her field. Her innovative patents reflect her dedication to enhancing technology and improving efficiency in data handling.