Sony Corporation

Yukio Shirako

Yoshio Kishi

Toshiharu Kondo

Teruhito Noshiro

Yukihiro Maruyama

Hiroyuki Fujikura

In an optical disc recording/reproducing apparatus having a device for seeking a predetermined position on a postscript type optical disc, a device for reading recorded data from the disc, and a device for recording data and a time table on predetermined data area and table area of the disc, respectively, a method of recording the time table comprising the steps of: reading position data corresponding to a position of each recorded data on the disc; detecting remaining data area on which no data is recorded; dividing the remaining data area into a plurality of small areas; and recording the position data of each recorded data and each small area on the time table area.

Disc recording/reproducing apparatus with a selectable method of

A command from a remote terminal of an editor is supplied to a system controller in an information reproducer. The system controller controls a control circuit and a reproducing circuit, and sets address information in an address output circuit. During virtual reproduction, the system controller sets virtual address information in the address output circuit, and the virtual address information signal is output to an address input terminal of the editor. A reproduced information signal from the reproducing circuit is supplied to an information input terminal of the editor via an information output circuit.

Information signal edit method and apparatus

An optical recording apparatus employing a method of halting a recording operation halfway a unitary frame of additional information and capable of realizing an exact operation in recording the additional information at the joint of preceding and present record portions. Out of the last unitary frame of the additional information in the preceding operation, the remaining information portion not included in the preceding record is generated, at the beginning of an additional recording mode, by an address information generator 4 from the content stored in an address information memory 6. And at the restart of recording the additional information, the recording operation is so performed that the remaining portion of the preceding last unitary frame of the additional information generated by the address information generator 4 is recorded in succession to the preceding record portion

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Tokyo, Japan

Yukio Shirako