Copyright protecting method, recording method, recording apparatus, reproduction method and reproduction apparatus
First Claim
1. A copyright protecting method of scrambling an information signal inputted via an input path and outputting it via an output path, the information signal corresponding to contents which are protected under copyright, including copy control information, and being scrambled by means of a predetermined type of scramble system, the copyright protecting method comprising:
- a discriminating step of discriminating the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal; and
a scramble system applying step of applying a predetermined scramble system to the inputted information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.
1 Assignment
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Accused Products
Abstract
A copyright protecting method of scrambling an information signal inputted via an input path and outputting it via an output path is provided. First, a selected condition to eliminate copying of the information signal via an unauthorized path is set. The selected condition includes combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information. Then, the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal are discriminated. Further, a predetermined scramble system is applied to the inputted information signal and a scrambled output is produced when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in the selected condition.
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Citations
30 Claims
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1. A copyright protecting method of scrambling an information signal inputted via an input path and outputting it via an output path, the information signal corresponding to contents which are protected under copyright, including copy control information, and being scrambled by means of a predetermined type of scramble system, the copyright protecting method comprising:
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a discriminating step of discriminating the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal; and
a scramble system applying step of applying a predetermined scramble system to the inputted information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path. - View Dependent Claims (2, 3, 4)
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5. A recording method of recording an information signal inputted via an input path on the recording medium according to copy control information, the information signal corresponding to contents which are to protected under copyright, the recording method comprising:
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a discriminating step of discriminating the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal;
a scramble system applying step of applying a predetermined scramble system to the inputted information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition; and
a recording step of recording the scrambled output on the recording medium, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path. - View Dependent Claims (6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20, 21)
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12. A recording apparatus for recording an information signal inputted via an input path onto a recording medium according to copy control information, the information signal corresponding to contents which are to be recorded on the recording medium, including copy control information, and being scrambled by means of a predetermined type of scramble system, the recording apparatus comprising:
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a discriminating device for discriminating the type of the scramble system of the inputted information signal and the type of the copy control information of the inputted information signal;
a scramble system applying device for applying a predetermined scramble system to the inputted information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition; and
a recording device for recording the scrambled output onto the recording medium, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.
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19. A reproducing method of reading an information signal from a recording medium and reproducing it according to copy control information, the information signal corresponding to contents which are protected under copyright, being recorded on the recording medium via an input path, including copy control information, and being scrambled by means of a predetermined type of scramble system, the reproducing method comprising:
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a discriminating step of discriminating the type of the scramble system of the read information signal and the type of the copy control information of the read information signal;
a scramble system applying step of applying a predetermined scramble system to the read information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition; and
a reproducing step of reproducing the scrambled output, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.
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22. A reproducing apparatus for reading an information signal from a recording medium and reproducing it according to copy control information, the information signal corresponding to contents which are protected under copyright, being recorded on the recording medium via an input path, including copy control information, and being scrambled by means of a predetermined type of scramble system, the reproducing apparatus comprising:
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a discriminating device for discriminating the type of the scramble system of the read information signal and the type of the copy control information of the read information signal;
a scramble system applying device of applying a predetermined scramble system to the read information signal and producing a scrambled output when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information coincides with that included in a selected condition; and
a reproducing device for reproducing the scrambled output, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path. - View Dependent Claims (23, 24, 26, 27, 29, 30)
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25. A reproducing method of reading an information signal from a recording medium and reproducing it according to copy control information, the information signal corresponding to contents which are protected under copyright, being recorded on the recording medium via an input path, including copy control information, and being scrambled by means of a predetermined type of scramble system, the reproducing method comprising:
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a discriminating step of discriminating the type of the scramble system of the read information signal and the type of the copy control information of the read information signal; and
a forbidding reproducing step of forbidding reproducing the read information signal when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information does not coincide with that included in a selected condition, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.
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28. A reproducing apparatus for reading an information signal from a recording medium and reproducing it according to copy control information, the information signal corresponding to contents which are protected under copyright, being recorded on the recording medium via an input path, including copy control information, and being scrambled by means of a predetermined type of scramble system, the reproducing apparatus comprising:
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a discriminating device for discriminating the type of the scramble system of the read information signal and the type of the copy control information of the read information signal; and
a forbidding reproducing device for forbidding reproducing the read information signal when a combination of the discriminated type of the scramble system and the discriminated type of the copy control information does not coincide with that included in a selected condition, wherein the selected condition including combinations of a plurality of types of scramble systems applicable to the information signal and a plurality of types of the copy control information to eliminate copying of the information signal via an unauthorized path.
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Specification