公开(公告)号：CA2220845C

公开(公告)日：2001-01-23

申请号：CA2220845

申请日：1996-05-22

Applicant: MACROVISION CORP

Inventor： RYAN JOHN O ,  COPELAND GREGORY C

IPC: H04N5/91 ,  G06F1/00 ,  G06F7/72 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/32 ,  H04N5/913 ,  H04N5/926 ,  H04N7/08 ,  H04N7/16 ,  H04N21/8358 ,  G11B23/28 ,  H04L9/36 ,  H04L9/38

Abstract: A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Print Signal and an Authenticating Signature to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is difficult to compromise. Both a Video Finger Print Signal and an Authenticating Signature are recorded on the media only when copy-protection is required. The nature of this Authenticating Signature is such that it will not be transferred to illicit copies made on CD recorders. When either an original protected or an original non-protected disk is played, the presence or absence of the Authenticating Signature causes the player to correctly play the program video. All original DVDs therefore play normally. When a copy of a nonprotected CD is played, the absence of the Video Print Signal also causes the player to correcly playback the video signal data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes the player to prohibit the disk from playing normally.

公开(公告)号：NZ292020A

公开(公告)日：1998-10-28

申请号：NZ29202095

申请日：1995-08-22

Applicant: MACROVISION CORP

Inventor： COPELAND GREGORY C

IPC: G06F7/72 ,  G06F21/10 ,  G11B20/00 ,  H04N5/913 ,  H04N7/08 ,  H04N7/081 ,  H04N7/16 ,  G11B23/28

Abstract: Source identification data (a fingerprint) identifying a video source and the date is incorporated into a video signal to enable the source to be identified in pirated copies. A data or fingerprint reader detects any fingerprint data present in the video signal and comprises a low pass filter (44) coupled to a matched filter (52) by way of a notch filter (82). The output of the low pass filter is fed to an analog to digital converter (46) before it is coupled to the matched filter (52). A preprogrammed sync word generator (60) couples a unique sync word (66) to a correlator (58) to correlate sync word information in the fingerprint data with the sync word (66).

公开(公告)号：TR9701540T1

公开(公告)日：1998-02-21

申请号：TR9701540

申请日：1996-05-22

Applicant: MACROVISION CORP

Inventor： RYAN JOHN ,  COPELAND GREGORY C

IPC: H04N5/91 ,  G06F1/00 ,  G06F7/72 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/32 ,  H04N5/913 ,  H04N5/926 ,  H04N7/08 ,  H04N7/16 ,  H04N21/8358

CPC classification number: H04N21/8358 ,  G06F7/725 ,  G06F2211/007 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00123 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00536 ,  G11B20/00586 ,  G11B20/00601 ,  G11B20/00695 ,  G11B20/00884 ,  G11B20/00913 ,  H04L9/3247 ,  H04L2209/605 ,  H04N5/913 ,  H04N5/9261 ,  H04N7/08 ,  H04N7/165 ,  H04N2005/91335 ,  H04N2005/91342 ,  H04N2005/91364

公开(公告)号：BR9508624A

公开(公告)日：1997-11-18

申请号：BR9508624

申请日：1995-08-22

Applicant: MACROVISION CORP

Inventor： COPELAND GREGORY C

IPC: G06F7/72 ,  G06F21/10 ,  G11B20/00 ,  H04N5/913 ,  H04N7/08 ,  H04N7/081 ,  H04N7/16

Abstract: Source identification data (a fingerprint) identifying a video source and the date is incorporated into a video signal to enable the source to be identified in pirated copies. A data or fingerprint reader detects any fingerprint data present in the video signal and comprises a low pass filter (44) coupled to a matched filter (52) by way of a notch filter (82). The output of the low pass filter is fed to an analog to digital converter (46) before it is coupled to the matched filter (52). A preprogrammed sync word generator (60) couples a unique sync word (66) to a correlator (58) to correlate sync word information in the fingerprint data with the sync word (66).

公开(公告)号：CA2218383A1

公开(公告)日：1996-11-14

申请号：CA2218383

申请日：1996-05-13

Applicant: MACROVISION CORP

Inventor： MORRISON ERIC FRAZIER ,  COPELAND GREGORY C ,  RYAN JOHN O

IPC: G06F3/06 ,  G06F21/24 ,  G07F7/00 ,  G07F17/16 ,  G11B5/09 ,  G11B7/0037 ,  G11B7/007 ,  G11B11/105 ,  G11B20/00 ,  G11B20/10 ,  G11B23/28 ,  H04N5/775 ,  G11B7/013 ,  G11B11/12 ,  H04N5/782 ,  H04N5/85

Abstract: A system for providing security and tracking data for rental video media, including digital video discs and digital video cassettes. Those new formats for video players and media allow for inclusion of security features which both allow tracking of rental of such media and prevent unauthorized rental thereof. Each player includes a decision circuit which plays a particular disc (or tape) only if a player identification number recorded on a special separate authorization memory card is the same as the player identification stored in the player, and if a movie identification number optically read from the disc matches a movie identification number recorded on the special card. A corresponding apparatus is provided at the video rental store which, at the time of rental, records on the authorization card in encrypted form the movie identification number and the number of the particular disc player for which that rental is intended. The encryption uses the private key of a public key system, the public key and the modulus being pre-recorded on the optical portion of the disc.

公开(公告)号：PT830783E

公开(公告)日：2001-06-29

申请号：PT96920357

申请日：1996-05-22

Applicant: MACROVISION CORP

Inventor： COPELAND GREGORY C ,  RYAN JOHN

IPC: H04N5/91 ,  G06F1/00 ,  G06F7/72 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/32 ,  H04N5/913 ,  H04N5/926 ,  H04N7/08 ,  H04N7/16 ,  H04N21/8358

Abstract: A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Print Signal and an Authenticating Signature to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is difficult to compromise. Both a Video Finger Print Signal and an Authenticating Signature are recorded on the media only when copy-protection is required. The nature of this Authenticating Signature is such that it will not be transferred to illicit copies made on CD recorders. When either an original protected or an original non-protected disk is played, the presence or absence of the Authenticating Signature causes the player to correctly play the program video. All original DVDs therefore play normally. When a copy of a non-protected CD is played, the absence of the Video Print Signal also causes the player to correctly playback the video signal data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes the player to prohibit the disk from playing normally.

公开(公告)号：AT198248T

公开(公告)日：2001-01-15

申请号：AT96920357

申请日：1996-05-22

Applicant: MACROVISION CORP

Inventor： RYAN JOHN ,  COPELAND GREGORY C

IPC: H04N5/91 ,  G06F1/00 ,  G06F7/72 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/32 ,  H04N5/913 ,  H04N5/926 ,  H04N7/08 ,  H04N7/16 ,  H04N21/8358

Abstract: A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Print Signal and an Authenticating Signature to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is difficult to compromise. Both a Video Finger Print Signal and an Authenticating Signature are recorded on the media only when copy-protection is required. The nature of this Authenticating Signature is such that it will not be transferred to illicit copies made on CD recorders. When either an original protected or an original non-protected disk is played, the presence or absence of the Authenticating Signature causes the player to correctly play the program video. All original DVDs therefore play normally. When a copy of a non-protected CD is played, the absence of the Video Print Signal also causes the player to correctly playback the video signal data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes the player to prohibit the disk from playing normally.

公开(公告)号：SG73580A1

公开(公告)日：2000-06-20

申请号：SG1998004640

申请日：1996-05-13

Applicant: MACROVISION CORP

Inventor： RYAN JOHN O ,  MORRISON ERIC FRASER ,  COPELAND GREGORY C

IPC: G06F3/06 ,  G06F21/24 ,  G07F7/00 ,  G07F17/16 ,  G11B5/09 ,  G11B7/0037 ,  G11B7/007 ,  G11B11/105 ,  G11B20/00 ,  G11B20/10 ,  G11B23/28 ,  G11B23/03 ,  G11B23/02 ,  G11B27/22 ,  G11B27/36 ,  G11B20/12 ,  G11B19/04 ,  G11B15/52

Abstract: A video disc designed for providing security and tracking data in the rental video media market. Those new formats for video players and media allow for inclusion of security features which both allow tracking of rental of such media and prevent unauthorized rental thereof Each player includes a decision circuit which plays a particular optical disc only if a player identification number recorded on a special separate magnetic track on the optical disk is the same as the player identification stored in the player, and if a movie identification number optically read from the disc matches a movie identification number recorded on the special separate magnetic track. A corresponding apparatus is provided at the video rental store which, at the time of rental, records on a magnetic portion of the media in encrypted form the movie identification number and the number of the particular disc player for which that rental is intended. The authorization encryption uses the private key of a public key system, the public key and the modulus being pre-recorded on the optical portion of the disc.

公开(公告)号：BR9609249A

公开(公告)日：1999-05-18

申请号：BR9609249

申请日：1996-05-13

Applicant: MACROVISION CORP

Inventor： RYAN JOHN O ,  MORRISON ERIC FRAZIER ,  COPELAND GREGORY C

IPC: G06F3/06 ,  G06F21/24 ,  G07F7/00 ,  G07F17/16 ,  G11B5/09 ,  G11B7/0037 ,  G11B7/007 ,  G11B11/105 ,  G11B20/00 ,  G11B20/10 ,  G11B23/28 ,  G06F7/04 ,  G07D7/00 ,  G11B5/78 ,  G11B5/82 ,  G11B3/90 ,  G11B15/04 ,  G11B15/52 ,  G11B19/04 ,  G11B20/12 ,  G11B23/02 ,  G11B23/03 ,  G11B27/22 ,  G11B27/36 ,  H04K1/00 ,  H04L9/00 ,  H04N9/79 ,  H04N5/76 ,  H04N5/78 ,  H04N7/167

Abstract: A video disc designed for providing security and tracking data in the rental video media market. Those new formats for video players and media allow for inclusion of security features which both allow tracking of rental of such media and prevent unauthorized rental thereof Each player includes a decision circuit which plays a particular optical disc only if a player identification number recorded on a special separate magnetic track on the optical disk is the same as the player identification stored in the player, and if a movie identification number optically read from the disc matches a movie identification number recorded on the special separate magnetic track. A corresponding apparatus is provided at the video rental store which, at the time of rental, records on a magnetic portion of the media in encrypted form the movie identification number and the number of the particular disc player for which that rental is intended. The authorization encryption uses the private key of a public key system, the public key and the modulus being pre-recorded on the optical portion of the disc.

公开(公告)号：CA2220845A1

公开(公告)日：1996-12-19

申请号：CA2220845

申请日：1996-05-22

Applicant: MACROVISION CORP

Inventor： RYAN JOHN O ,  COPELAND GREGORY C

IPC: H04N5/91 ,  G06F1/00 ,  G06F7/72 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/32 ,  H04N5/913 ,  H04N5/926 ,  H04N7/08 ,  H04N7/16 ,  H04N21/8358 ,  G11B23/28 ,  H04L9/36 ,  H04L9/38

Abstract: A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Prin t Signal and an Authenticating Signature to permit the player to handle either copy-protected or non-copy-protected media, in a manner that is difficult to compromise. Both a Video Finger Print Signal and an Authenticating Signature are recorded on the media only when copy-protection is required. The nature of this Authenticating Signature is such that it will not be transferred to illicit copies made on CD recorders. When either an original protected or an original non-protected disk is played, the presence or absence of the Authenticating Signature causes the player to correctly play the program video. All original DVDs therefore play normally. When a copy of a non- protected CD is played, the absence of the Video Print Signal also causes th e player to correcly playback the video signal data. However, when a copy of a protected CD is played, the absence of the Authenticating Signature causes t he player to prohibit the disk from playing normally.