Loading patent…
AssigneeSony Corporation
InventorsYoichiro Sako, Yoshitomo Osawa, Akira Kurihara, Isao Kawashima, Shozo Masuda, Hideo Owa
Estimating the term…
A data transmitting method for preventing direct copying of digital bi-level signals. When processing input digital data from an input terminal 11 by circuits 13 to 16, modulating the data by a modulation circuit 17 and appending synchronization signals by a synchronization appendage circuit 18, the synchronization signals are appended using a synchronization format which is different from the synchronization format conforming to the standard and which is usually not used. For example, the synchronization pattern different from the regular synchronization pattern may be used, or the synchronization signal may be inserted at a position different from the regular position. If attempts are made for direct copying of the digital bi-level signal having such synchronization format, synchronization may be disengaged, for example, thus obstructing and prohibiting duplication.
A data transmission method for processing input digital data and transmitting the processed digital data in accordance with a pre-set format, comprising:
A data transmission method for processing input digital data and transmitting the processed digital data in accordance with a pre-set format, comprising:
A data transmission method for processing input digital data and transmitting the processed digital data in accordance with a pre-set format, comprising:
A data transmission method for processing input digital data and transmitting the processed digital data in accordance with a pre-set format, comprising:
A data recording apparatus for processing input digital data and recording the processed digital data in accordance with a pre-set format, wherein a reproduction obstructing area having an improper signal for obstructing the reproducing operation is provided in a signal and position designation information designating an arraying position of the reproduction obstructing area is recorded along with data.
A data record medium having recorded thereon a reproduction obstructing area having an improper signal for obstructing the reproducing operation in a data recording area and position designation information designating an arraying position of the reproduction obstructing area.
A data reproducing apparatus for reproducing a data record medium having recorded thereon a reproduction obstructing area having an improper signal for obstructing the reproducing operation in a data recording area and position designation information designating an arraying position of the reproduction obstructing area, comprising:
Dependencies are inferred from the claim text.