Method and apparatus for providing copy protection using a transmittal mode command
View Patent ↗A method and system of providing copy protection of video analog and digital signals and the like, wherein the signals are transmitted via a digital delivery network, and may comprise, for example, pay-per-view (PPV) program materials protected by copyrights of respective program rights holders. The right holders authorize video service providers ( 3 ) to apply copy protection to the program material. The copy protection process is supplied to the rights holders or the service providers ( 3 ) by a copy protection process licensor. The video service providers ( 3 ) supply suitable copy protection control software via respective control and billing (tracking) centers to generate commands which activate, control and reconfigure the copy protection process being applied to the programs being transmitted. A set-top box ( 10 ) is provided to each consumer and contains a copy protection circuit which is adapted to apply selected anticopy waveforms to the video signal corresponding to the program material in response to the commands from the service providers ( 3 ). Usage data pertinent to each consumer is returned by the set-top box ( 10 ) to the service providers ( 3 ), which then report the copy protection usage to the respective rights holders and process licensor.
1. A method of providing programmable copy protection of a video signal demodulated from a transmitted signal via a digital delivery network, wherein one or more copy protection signal prevents copying and/or subsequent viewing of a recording of the video signal while allowing viewing of the video signal which includes the one or more copy protection signal, comprising:
generating a copy protection command having a mode control command and programmable configuration bit patterns indicative of respective one or more copy protection signals;
receiving the transmitted signal and the mode control command in at least one device coupled to the network; and
providing the one or more copy protection signal to the video signal to produce a copy protected video signal in the at least one device in response to one or more programmable configuration bit pattern selected by the mode control command, to prevent said copying or subsequent viewing of the recording of the copy protected video signal, wherein the copy protected video signal is viewable.
2. The method of claim 1 including:
applying the transmitted copy protection signal to the video signal in response to the one or more programmable configuration bit pattern selected by the mode control command.
3. The method of claim 1 including:
storing the one or more copy protection signal in the at least one device; and
recovering the one or more copy protection signal from storage and applying the recovered one or more copy protection signal to the video signal in response to the one or more programmable configuration bit pattern selected by the mode control command.
4. The method of claim 1 wherein:
said copy protection command includes the programmable configuration bit patterns indicative of a plurality of copy protection signals; and
wherein two or more copy protection signals are applied to the video signal in response to respective programmable configuration bit patterns selected by the mode control command.
5. The method of claim 1 , including:
storing said one or more copy protection signal in the at least one device;
recovering the one or more copy protection signal from storage in response to one or more programmable configuration bit pattern selected by the mode control command; and
applying the one or more copy protection signal to the video signal to modify the video signal such that the copy protected video signal is viewable but uncopiable.
6. The method of claim 1 wherein the mode control command and the programmable configuration bit pattern each comprise one or more bit.
7. The method of claim 1 , wherein the copy protection command includes a bit pattern for on/off/mode control and a multiple bit pattern which defines the programmable configuration bit patterns wherein the configuration bit patterns identify respective signals of the one or more copy protection signal.
8. The method of claim 1 wherein the one or more copy protection signal comprises a plurality of copy protection signals, and wherein each signal of the plurality of copy protection signals is identified by a corresponding programmable configuration bit pattern which is selectable by the mode control command.
9. The method of claim 1 wherein the one or more copy protection signal include one or more of the following; vertical blanking interval (VBI) pulses On/Off, end of field back porch pulses On/Off, color stripe process On/Off, automatic gain control (AGC) pulse normal (amplitude cycling) or static mode select, H sync amplitude reduction On/Off, V sync amplitude reduction On/Off.
10. A system for controlling programmable copy protection of a video signal demodulated or derived from a transmitted signal via a digital delivery network, wherein a service provider enables providing one or more copy protection signal to the video signal which prevents unauthorized copying or subsequent viewing of a recording of the video signal, the system comprising:
a copy protection command having a mode control command of one or more bit included with the transmitted signal, and a programmable configuration bit pattern indicative of the one or more copy protection signal; and
a device for applying the one or more copy protection signal to the video signal to produce a copy protected video signal in response to a corresponding programmable configuration bit pattern selected by the transmitted mode control command, to prevent copying or subsequent viewing of the recording of the copy protected video signal, wherein the copy protected video signal is successfully watchable.
11. The system of claim 10 wherein the one or more copy protection signal is transmitted to the device.
12. The system of claim 10 wherein the one or more copy protection signal is stored in the device.
13. The system of claim 10 wherein:
the programmable configuration bit pattern determines one or more programmable operating configuration corresponding to the one or more copy protection signal;
the transmitted signal is provided by a service provider, and wherein the transmitted signal provides the programmable configuration bit pattern; and
the device selectively applies the one or more programmable operating configuration to the video signal in response to the mode control command.
14. A method of providing programmable copy protection of a video signal derived from a transmitted signal to devices via a digital delivery network, wherein one or more programmable copy protection signal provided to the video signal produces a copy protected video signal which prevents copying or subsequent viewing of a recording of the copy protected video signal while allowing watching of the copy protected video signal, comprising:
receiving the transmitted signal and a copy protection command at one or more of the device, which copy protection command is indicative of the one or more programmable copy protection signal to be applied to the video signal;
wherein the copy protection command includes a mode control command and one or more programmable configuration bit pattern indicative of the one or more copy protection signal; and
applying the one or more copy protection signal to the video signal to produce the copy protected video signal in response to the programmable configuration bit pattern selected by the mode control command in the one or more device, to prevent unauthorized copying or subsequent viewing of the copy protected video signal, wherein the copy protected video signal is viewable.
15. The method of claim 14 wherein the one or more copy protection signal is received by the one or more device.
16. The method of claim 14 wherein the one or more copy protection signal is stored in the one or more device.
17. The method of claim 14 wherein:
the one or more copy protection signal comprises a plurality of different copy protection configurations;
the programmable configuration bit pattern comprises a plurality of bit patterns corresponding to respective copy protection configurations to be applied to the video signal; and
the selected copy protection configuration, or configurations, is applied to the video signal in response to the programmable configuration bit pattern as enabled by the mode control command.