Information signal reproducing apparatus, information signal outputting apparatus, information signal reproducing method, and information signal outputting method

An information signal outputting apparatus for receiving a supplied information signal having copy control information added thereto, and outputting said information signal, comprising:

• first detecting means for detecting whether said information signal is encrypted or not-encrypted by a plurality of the encryption key data and producing an output representative thereof;
• second detecting means for detecting said copy control information from said information signal and producing an output representative thereof, said copy control information comprising electronic watermark information embedded in said information signal, said second detecting means detecting said electronic watermark information;
• control means for restricting output of said information signal when a combination of the output of said first detecting means and the output of said second detecting means results in a combination that should not occur in normal use;
• and
• notifying means for notifying a user that the information signal has been illegally copied when said control means restricts reproduction,
• means for modifying access to said information signal to allow reproduction of said information signal while simultaneously displaying an informative message to the user or to allow reproduction of said information signal while blanking a part of the reproduced signal.

An information signal reproducing method for reproducing an information signal from a recording medium on which said information signal, including added copy control information is recorded, comprising:

• detecting whether said information signal read out from said recording medium is encrypted or not-encrypted by a plurality of the encryption key data from said recording medium and producing an output representative thereof;
• detecting said copy control information from said information signal read out from said recording medium and producing an output representative thereof, said copy control information comprising electronic watermark information embedded in said information signal;
• restricting reproduction of said information signal when a combination of the outputs of said detection of whether said information signal is encrypted or not encrypted and said detection of said copy control information results in a combination that should not occur in normal use;
• and
• notifying a user that the information signal has been illegally copied when said control means restricts reproduction,
• modifying access to said information signal to allow reproduction of said information signal while simultaneously displaying an informative message to the user or to allow reproduction of said information signal while blanking a part of the reproduced signal.

An information signal reproducing apparatus for reproducing an information signal from a recording medium on which said information signal, including added copy control information is recorded, comprising:

• first detecting means for detecting whether said information signal read out from said recording medium is encrypted or not-encrypted by a plurality of the encryption key data from said recording medium and producing an output representative thereof;
• second detecting means for detecting said copy control information from said information signal read out from said recording medium and producing an output representative thereof, said copy control information comprising electronic watermark information embedded in said information signal, said second detecting means detecting said electronic watermark information;
• control means for restricting reproduction of said information signal when a combination of the output of said first detecting means and the output of said second detecting means results in a combination that should not occur in normal use;
• and
• notifying means for notifying a user that the information signal has been illegally copied when said control means restricts reproduction,
• modifying means for modifying access to said information signal to allow reproduction of said information signal while simultaneously displaying an informative message to the user or to allow reproduction of said information signal while blanking a part of the reproduced signal.