Anti-copying method and apparatus
OwnerTony Quinventor
Life of this patent
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Abstract
The present invention teaches anti-copy protection and control of an underlying anti-copy protection mechanism through anti-copy protection codes inserted into a video program. The anti-copy protection code may be inserted into closed caption (CC) bandwidth. The anti-copy protection codes of the present invention are suitable for use with analog and digital video programs. The present invention contemplates anti-copy protection mechanisms having multiple levels of anti-copy protection. These multiple levels of anti-copy protection may include varying levels of degradation of subsequent copies as well as absolute prohibition of subsequent copying.
Claims128
A video encoding method for providing control of an anti-copy protection mechanism for a video program, the video encoding method comprising an act of encoding at least one anti-copy protection code within closed captioning (CC) bandwidth of said video program.
A computer readable medium encoded with a video encoding method for providing control of an anti-copy protection mechanism for a video program, the computer readable medium comprising a computer executable instruction for encoding at least one anti-copy protection code within closed captioning (CC) bandwidth of said video program.
A video program comprising at least one anti-copy protection code encoded within a portion of said video program intended for use in providing closed caption (CC) data, said at least one anti-copy protection code operable to control an anti-copy protection mechanism implemented on a video device.
A data carrier wave such as a video signal, said data carrier wave comprising at least one anti-copy protection code encoded within a portion of said data carrier wave intended for use in providing closed caption (CC) data, said at least one anti-copy protection code operable to control an anti-copy protection mechanism implemented on a video device.
An anti-copy protection video program encoding system, said encoding system operable to insert anti-copy protection codes within closed captioning bandwidth of a video program.
An anti-copy protection method for providing control of an anti-copy protection mechanism for a video program, the anti-copy protection method comprising the acts of:
- receiving a video program;
- analyzing a CC portion of said video program for anti-copy protection codes.
A method for anti-copy protection in an video program comprising:
- encoding a video program with a two byte character code in a vertical blanking interval of a video field such that said two byte character code may be decoded in a video recording device in order to disable a recording process of said video program;
- and
- disabling said recording process in response to a content of said two byte character code.
A method for recording a copy-protected video program with a video recording device comprising:
- decoding a two byte character code in a vertical blanking interval of a video field;
- and
- enabling recording of said video program in response to said two byte character code.
An apparatus for preventing the recording of copy protected video programs comprising:
- a decoding device for decoding closed caption character codes in a video program;
- a memory operative for storing a reference code;
- a comparator for comparing said reference code with said closed caption character codes in order to produce an output responsive to said reference code and said closed caption character codes;
- and
- a control device operative to prevent recording of said video program in response to said output of said comparator.
A video transmission receiver for receiving copy protected video programs, comprising:
- a decoding device for decoding copy protection codes incorporated in a video program;
- a memory operative for storing a reference code;
- a comparator for comparing said reference code with said copy protection codes in order to produce an output responsive to said reference code and said copy protection codes;
- a control device operative to limit recording and playback of said video program in response to said output of said comparator;
- and
- a recording device for recording and playback of said video program.
A video transmitter for creating copy protected video programs, comprising an encoding device for placing a two byte character code in a vertical blanking interval of a video field.
Dependencies are inferred from the claim text.