Hitachi, Ltd.

Akihiko Ohba

Hiroki Kanai

Masahiro Kageyama

Yoshihisa Kamo

Hitoshi Kakuta

Toyohiko Kagimasa

Taizo Kinoshita

Hiroshi Yoshigi

Toru Matsushita

Hisao Tanabe

Tatsundo Suzuki

Yukio Kumagai

Mitsuo Ohyama

The video information recording and reproducing apparatus includes an inputting information part for receiving video information, a storing information part, an outputting information part for producing video information, an automatic indexing information part for automatically adding indexes to the inputted video information, a filtering video information part for automatically selecting video information to be stored from the inputting information part, and a controlling part for controlling the above elements, thereby actualizing the free time-shift viewing function, intelligent search function, and automatic video data base generation function.

Video information recording and reproducing apparatus

A plurality of disc units, an array control unit, and a host controller connecting mechanism for connecting them to a host controller through a system interface are mounted on the same circuit board. The order of interrupts of requests for connecting of disc units is detected, and the disc units are connected to a common bus selectively. Cables for interconnecting constituent elements of the disc array device and supporting mechanisms for the disc units can be dispensed with, and consequently the cost can be reduced. Useless rotation waiting is avoided, improving the data transfer rate. The disc array device can be built in the host device and connected directly to the system bus. Therefore the ease of operation can be improved.

Disc array device and disc control method

Growing community of inventors

Tokyo, Japan

Akihiko Ohba