Shuichi Ishiwata

Title: Shuichi Ishiwata: Videoconferencing and Facsimile Integration.

Introduction

Shuichi Ishiwata is an inventor associated with Yokohama, Japan, and Hitachi, Ltd. His patent work includes a videoconference device designed to support facsimile communication alongside video and voice calls.

Latest Patents

The provided information identifies one patent for Ishiwata: “Video conference device with facsimile function.” The invention connects a videoconference device to a commercially available facsimile unit, enabling facsimile signals to be sent and received during a conference.

The device includes a facsimile connection terminal, a call unit, and a converter that adapts signals between a two-wire facsimile connection and a four-wire system with separate sending and receiving paths. It also encodes and decodes facsimile voice-band signals, supplies the voltage and current required by a standard analog telephone, and detects current flow. A switching unit routes signals through the appropriate circuitry, while control and multiplexing components combine facsimile signals with video and voice signals for transmission and separate them at the receiving end.

Career Highlights

Ishiwata’s documented patent contribution addresses interoperability between videoconferencing equipment and conventional facsimile technology. The patent is associated with Hitachi, Ltd. The supplied information lists 1 patent.

Collaborations

Iwao Ishinabe and Yoji Shibata are identified as Ishiwata’s coworkers. The available details do not specify their roles in the patent or the nature of their collaboration.

Conclusion

Shuichi Ishiwata’s recorded invention combines videoconferencing with standard facsimile functionality, allowing both forms of communication to operate through an integrated device.