198748 ⎘
Signal processing not specific to the method of recording or reproducing; Circuits therefor; Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags wherein said copy control information is encoded in an encryption mode indicator [EMI]
Transmission system
#2Authentication and encryption utilizing command identifiers
#3Information playing/reproducing apparatus and method
#4Authentication and encryption utilizing command identifiers
#5Authorized content verification method, content transmission/reception system, transmitter, and receiver
#6Apparatus for, and method of, recording/playing audio data having additional information embedded therein
#7Data processing apparatus and data processing method
#8Information recording/playback apparatus and method
#9Recording method, recording apparatus, reproducing method and reproducing apparatus
#10Data processing apparatus and data processing method
#11Information processing system, information processing method, computer program executed in information processing system
#12Transmission system with apparatus for transmitting and receiving audio data auxiliary data
#13Contents transmitting apparatus and method of transmitting contents