Ikuo Shoh

Title: Ikuo Shoh and a Patent for Reliable Data Transfer Between Buses.

Introduction

Ikuo Shoh is an inventor associated with Moriyama, Japan, and International Business Machines Corporation. His patent work addresses communication between devices connected through multiple computer buses.

Latest Patents

The supplied information lists 1 patent for Shoh: “Data Transfer Method Between Buses, Bridge Devices for Interconnecting.” The invention aims to enable access to devices that otherwise may not be reachable through a PCI-to-PCI bridge.

In the described method, the bridge checks whether a requested address falls outside a blocked area and whether it matches an address in a retry register. On an initial attempt, the bridge may forward the request to another PCI bus, where no device responds. It then records the address and retries the bus cycle. When the request is made again, the bridge refrains from decoding it, allowing a PCI-to-ISA bridge to route it to the ISA bus. The intended result is a correctly established bus cycle and access to the target device.

Career Highlights

Shoh’s listed patent reflects work on bridge-device behavior and data transfer in systems with multiple buses. The approach uses address tracking and retry handling to help resolve access requests that cannot be completed through the initial PCI path.

Collaborations

The supplied information identifies Hidenobu Hanami and Koichi Kamijo as Shoh’s coworkers. It does not specify their roles in the patent or describe particular collaborations.

Conclusion

Ikuo Shoh’s listed invention focuses on improving access to devices across PCI and ISA buses through coordinated address decoding and retry handling.