Hitachi, Ltd.

Atsuko Nakao

Kiyoshi Ishida

Takehiko Yamada

Toru Ebihara

Nobuyuki Matsuyama

Nobuyoshi Torii

Toshio Watanabe

Tooru Aramaki

Tokusou Matsuda

Masato Kidokoro

A video conversation/monitoring system having a remote monitoring function includes a center station and multiple end stations linked through the ISDN network. The center station includes a video conversation/monitoring circuit, video input device, video output device, audio input device, audio output device, system controller, facsimile, and ISDN line terminating unit. Each end station includes a video conversation/monitoring circuit, system controller, first video input device, second video input device, audio input device, audio output device, calling device, first notification device, second notification device, detection device, facsimile, and ISDN line terminating unit. Based on the remote monitoring function of the video input device and the remote control function of the system controller for switching the video input device, various guidance services are accomplished in addition to the video-phonic conversation service. The integrated unit enables easy desk-top installation, the application of the ISDN network reduces the communication cost, and the provision of various state detection devices in the end stations enables image-based monitoring and state monitoring in addition to the conversation.

Video conversation/monitoring system having a remote monitoring function

A video conversation/monitoring system, having a remote monitoring function and a remote peripheral device control function in addition to a video-phonic conversation function, includes a center station linked to multiple end stations through an ISDN network. The center station includes a video conversation/monitoring unit, a conversation camera, a monitor screen, a conversation microphone, a conversation speaker, a system controller, a facsimile, and an ISDN line terminating unit. Each end station includes a video conversation/monitoring unit, a system controller, a monitoring camera, a conversation camera, a conversation microphone, a conversation speaker, a sending key set for making calls, a first notification device, a second notification device, a detection device, a facsimile, and an ISDN line terminating unit. Based on the remote monitoring function of the monitoring camera and the remote control function of the system controller for switching between the monitoring camera and the conversation camera, various guidance services are provided in addition to the video-phonic conversation service. Further, the system may be incorporated within an integrated unit which can easily be installed on a desk-top. The ability of the end stations to be adapted to include various state detection devices allows the system to perform image-based and state monitoring in addition to its conversation function.

Audio and video telecommunication system with remote monitoring function

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Tokyo, Japan

Atsuko Nakao