US Patent No: 7,711,115

Number of patents in Portfolio can not be more than 2000

Descrambler

ALSO PUBLISHED AS: 20040088558

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Abstract

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A descrambler adapted as an integrated circuit (IC) according to one embodiment. The descrambler comprises a control word ladder logic to produce, among other data, a control word to descramble incoming scrambled content. The descrambler further comprises copy protection key ladder logic to recover a copy protection key for encrypting descrambled content before subsequent transmission to a digital device.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SONY CORPORATIONTOKYO, JP40546
SONY ELECTRONICS INC.PARK RIDGE, NJ2972

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Candelore, Brant L Escondido, CA 309 3818

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SONY CORPORATION (32)
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4,710,811 Highly efficient coding apparatus for a digital video signal 103 1985
4,722,003 High efficiency coding apparatus 105 1986
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SONY ELECTRONICS INC. (32)
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7,010,685 Method and apparatus for storing scrambled digital programs by filtering product identifier 13 1999
6,697,489 Method and apparatus for securing control words 113 2000
7,146,007 Secure conditional access port interface 48 2000
7,124,303 Elementary stream partial encryption 120 2002
7,127,619 Decoding and decryption of partially encrypted information 79 2002
7,139,398 Time division partial encryption 81 2002
7,151,831 Partial encryption and PID mapping 63 2002
2002/0194,613 Reconstitution of program streams split across multiple program identifiers 74 2002
2003/0222,994 Method and apparatus for synchronizing dynamic graphics 47 2002
7,155,012 Slice mask and moat pattern partial encryption 62 2002
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CISCO TECHNOLOGY, INC. (11)
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2004/0003,008 Method for partially encrypting program data 62 2003
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KABUSHIKI KAISHA TOSHIBA (10)
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5,999,698 Multiangle block reproduction system 358 1997
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6,477,649 Information recording apparatus, information reproducing apparatus, and information distribution system 71 1998
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SCIENTIFIC-ATLANTA, INC. (9)
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7,065,213 In a subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate 56 2001
 
MOTOROLA MOBILITY LLC (7)
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LG ELECTRONICS INC. (6)
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MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (6)
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INTERNATIONAL BUSINESS MACHINES CORPORATION (5)
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MICROSOFT CORPORATION (5)
5,999,622 Method and apparatus for protecting widely distributed digital information 155 1995
6,055,314 System and method for secure purchase and delivery of video content programs 527 1996
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2004/0100,510 User interface for a resource search tool 84 2003
 
THOMSON LICENSING (5)
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6,529,526 System for processing programs and program content rating information derived from multiple broadcast sources 150 1998
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COMCAST IP HOLDINGS I, LLC (4)
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6,240,553 Method for providing scalable in-band and out-of-band access within a video-on-demand environment 153 1999
6,415,031 Selective and renewable encryption for secure distribution of video on-demand 210 2000
6,681,326 Secure distribution of video on-demand 111 2001
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (4)
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HITACHI, LTD. (4)
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SAMSUNG ELECTRONICS CO., LTD. (4)
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THOMSON CONSUMER ELECTRONICS, INC. (4)
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MACROVISION CORPORATION (3)
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Zenith Electronics Corporation (3)
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NEC ELECTRONICS CORPORATION (1)
2002/0047,915 Segmented processing method for a transport stream for digital television and recording media for the same 48 2001
 
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5,526,427 Universal broadcast code and multi-level encoded signal monitoring system 175 1994
 
NISSIM CORP. (1)
5,717,814 Variable-content video retriever 198 1994
 
NOKIA CORPORATION (1)
6,788,690 Packet identifier search filtering 62 2002
 
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2002/0129,236 VoIP terminal security module, SIP stack with security manager, system and security methods 21 2000
 
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PARKER-HANNIFIN CORPORATION (1)
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YAMAHA CORPORATION (1)
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Other [Check patent profile for assignment information] (6)
6,012,144 Transaction security method and apparatus 204 1997
6,049,613 Method and apparatus for encrypting, decrypting, and providing privacy for data values 80 1998
2004/0049,688 Upgrading of encryption 65 2002
2003/0157,140 Nonoral preparation having three-layer structure 9 2003
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2005/0063,541 Digital rights management of a digital device 46 2004

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SONY ELECTRONICS INC. (1)
8,204,220 Simulcrypt key sharing with hashed keys 1 2008
 
STMICROELECTRONICS PVT. LTD. (1)
8,838,998 Circuit personalization 0 2013

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