1
Toshihiko Kaneshige, Sigeru Todokoro, Tadashi Kojima: Information storage medium, recording method used therefor, and reproducing apparatus. Kabushiki Kaisha Toshiba, Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro, June 15, 1999: US05913010 (231 worldwide citation)

Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B0, B1, B2, B3, ...


2
Hisashi Yamada, Hideo Ando, Tadashi Kojima, Kouichi Hirayama: Optical disk having electronic watermark, reproducing apparatus thereof and copy protecting method using the same. Kabushiki Kaisha Toshiba, Pillsbury Winthrop, December 3, 2002: US06490683 (130 worldwide citation)

A copy protecting method for an optical medium includes a writing step of writing watermark data as ECC data in a data storage area of a disk having a certain data stored therein.


3
Toshihiko Kaneshige, Sigeru Todokoro, Tadashi Kojima: Information storage medium, recording method used therefor and reproducing apparatus. Kabushiki Kaisha Toshiba, Pillsbury Madison & Sutro, March 6, 2001: US06198874 (123 worldwide citation)

Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B


4
Hideo Ando, Masaki Nakagawa, Yoshiyuki Ishizawa, Tadashi Kojima: Information reproducing apparatus, authenticating apparatus, and information processing system. Kabushiki Kaisha Toshiba, Pillsbury Winthrop, January 8, 2002: US06338139 (54 worldwide citation)

In this invention, an information recording/reproducing apparatus has an authentication function and directly transfers information to an MPEG board, sub-picture run-length board, speech coding/decoding board without using a main CPU. Thus, information transfer between the information recording/repr ...


5
Toshihiko Kaneshige, Sigeru Todokoro, Tadashi Kojima: Information storage medium, recording method used therefor and reproducing apparatus. Kabushiki Kaisha Toshiba, Pillsbury Madison & Sutro, March 19, 2002: US06360055 (52 worldwide citation)

Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B


6
Shin ichi Tanaka, Toshiyuki Shimada, Tadashi Kojima, Koichi Hirayama: Recording medium, recording method and apparatus, and reproduction method and apparatus. Kabushiki Kaisha Toshiba, Matsushita Electric Industrial, Greenblum & Bernstein, March 9, 1999: US05881037 (38 worldwide citation)

A digital video disk stores data codes and multifunctional synchronization codes in a data structure. The synchronization codes contain type information code identifying whether the synchronization code is located in a code sequence at the beginning of the data block, the beginning of a data block s ...


7
Toshihiko Kaneshige, Sigeru Todokoro, Tadashi Kojima: Information storage medium, recording method used therefor and reproducing apparatus. Kabushiki Kaisha Toshiba, Pillsbury Madison & Sutro, March 7, 2000: US06035095 (36 worldwide citation)

Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B0, B1, B2, B3, ...


8
Takehisa Kato, Naoki Endoh, Hiroaki Unno, Tadashi Kojima, Koichi Hirayama: Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys. Kabushiki Kaisha Toshiba, Pillsbury Winthrop, February 12, 2002: US06347145 (34 worldwide citation)

On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and seco ...


9
Meisei Nishikawa, Jun Inagawa, Takeshi Inagaki, Toshihiko Kaneshige, Yasuhiro Hayashi, Tadashi Kojima: Erroneous track jump restoration apparatus for optical record disc player. Kabushiki Kaisha Toshiba, Finnegan Henderson Farabow Garrett & Dunner, August 22, 1989: US04860272 (33 worldwide citation)

An apparatus for reproducing data stored on a disc in a plurality of tracks connected in a continuous spiral or separated in concentric tracks. The apparatus includes a device for rotating the disc, an optical pickup device aligned with one of the tracks for reading the data from the track, the pick ...


10
Norikazu Arai, Shozo Ishiyama, Tadashi Kojima: Large-aperture single lens with aspherical surfaces. Konishiroku Photo, Jordan B Bierman, Linda Bierman, C Cornell Remsen Jr, May 22, 1984: US04449792 (32 worldwide citation)

A large-aperture single lens with aspherical surfaces to be used as a pickup lens for video disks, especially for tracking the video disk by directly moving the pickup lens. It is preferable that the single lens is made of plastic material in order to make it compact and light in weight. Both refrac ...