Patents
Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445)
01/2005
01/26/2005EP1501305A1 Method for collating program guide information from a plurality of sources with equivalence mapping
01/26/2005EP1501301A1 Demultiplexing device
01/26/2005EP1501228A1 Encoded packet transmission/reception method, device thereof, and program
01/26/2005EP1500278A2 Method and system for preventing start code emulation at non-byte aligned and/or bit-shifted locations
01/26/2005EP1500262A1 System and method for blackfield detection
01/26/2005EP1386457B1 A two stage equalizer for trellis coded systems
01/26/2005EP1218874A4 Method of using buttons associated with a display to access and execute associated functions
01/26/2005CN1572115A Selective decoding of enhance video stream
01/26/2005CN1571496A Multimedia time warping system
01/26/2005CN1571490A Information system
01/26/2005CN1186941C Scaling independent technique for watermarking images
01/26/2005CN1186937C Coding device and method, multiplexing equipment and method
01/26/2005CN1186932C 数字电视系统 Digital Television System
01/26/2005CN1186903C Dynamic network configuration for one-way adapter
01/25/2005US6848117 Video-on-demand system capable of performing a high-speed playback at a correct speed
01/25/2005US6848051 System for determining successful reception of a message
01/25/2005US6847659 Methods and apparatus for reconfiguring protocol data when reducing multiplexed data streams
01/25/2005US6847656 Statistical remultiplexing with bandwidth allocation among different transcoding channels
01/25/2005CA2249606C Video transcoder
01/20/2005WO2005006600A1 Optical signal transmitter and optical signal transmission system
01/20/2005US20050015815 Interactive entertainment system for presenting supplemental interactive content together with continuous video programs
01/20/2005US20050015814 Open cable set-top box diagnosing system and method thereof
01/20/2005US20050015813 Open cable set-top box diagnosing system and method thereof
01/20/2005US20050015808 Camera server and image distribution method
01/20/2005US20050015804 Interactive television program guide display
01/20/2005US20050015801 Information providing system, broadcast receiving apparatus, and server apparatus
01/20/2005US20050015796 System and method for managing interactive programming and advertisements in interactive broadcast systems
01/20/2005US20050013437 Method and system for providing secure subscriber content data
01/20/2005US20050013312 Method for managing variation in a data flow rate
01/20/2005US20050012859 Recording broadcasting enhancement services
01/19/2005EP1499073A1 Bit rate control method and device
01/19/2005EP1499063A2 Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method
01/19/2005EP1499023A1 Data processing system, data processing method, data processing device, and data processing program
01/19/2005EP1497986A1 Method for managing the rights of an encrypted content stored on a personal digital recorder
01/19/2005EP1497811A1 A display system
01/19/2005EP1135921B1 System and method for ip-based communication having speech generated text
01/19/2005EP1044564A4 System for dual-display interaction with integrated television and internet content
01/19/2005EP1002406B1 Programm guide generation for home networks
01/19/2005CN1568629A Method for enabling subscriber entity to actively communicate in a communication network
01/19/2005CN1568620A Transmission of video using variable rate modulation
01/19/2005CN1568599A Methods and apparatus for identifying asset location in communication networks
01/19/2005CN1568001A Multimedia information system and method
01/19/2005CN1567987A Interactive television program guide with remote access
01/19/2005CN1185851C Reconfigurable on-demand telephone and data line system
01/18/2005US6845485 Method and apparatus for indicating story-line changes by mining closed-caption-text
01/18/2005US6845388 Web site access manual of a character string into a software interface
01/18/2005US6845107 Video data multiplexer, video data multiplexing control method, method and apparatus for multiplexing encoded stream, and encoding method and apparatus
01/18/2005US6845106 Allocating access across a shared communications medium
01/18/2005US6844895 Wireless intelligent host imaging, audio and data receiver
01/18/2005US6843417 Aiming indicia for a bar code and method of use
01/13/2005WO2005004474A1 Information recording device, information output device, information recording program, information output program, recording medium, and information recording medium
01/13/2005US20050010960 Video data multiplexing device, video data multiplexing control method, encoded stream multiplexing device and method, and encoding device and method
01/13/2005US20050010959 Digital broadcast receiving apparatus and control method therefor
01/13/2005US20050010951 Information processing apparatus and method, program, and recording medium
01/13/2005US20050010866 Method and apparatus for a home network auto-tree builder
01/13/2005US20050007970 Broadcast system
01/13/2005US20050007561 Projection display system, projector and menu image display method for same
01/13/2005US20050007495 Operation screen controlling method, operation screen controlling program, and display device
01/12/2005EP1496643A1 Key management method and apparatus
01/12/2005EP1495637A2 Secure method of storing encrypted data on a personal digital recorder
01/12/2005EP1495608A2 Concatenated equalizer/trellis decoder architecture for an hdtv receiver
01/12/2005EP1135933B1 Method and system for presenting television programming and interactive entertainment
01/12/2005CN1565127A Business models, methods and apparatus for unlocking value-added services on the broadcast receivers
01/12/2005CN1565126A Program recommendation method and system utilizing a viewing history of commercials
01/12/2005CN1565120A Method and system for displaying multiple programs in the same time slot
01/12/2005CN1184812C Advanced set top terminal of cable TV sending system and its method
01/12/2005CN1184809C Data processing device and method, and recording device and method
01/12/2005CN1184757C Method of providing and retrieving data segment
01/11/2005US6842836 Streaming media cache filing
01/11/2005US6842724 Method and apparatus for reducing start-up delay in data packet-based network streaming applications
01/11/2005US6840625 Projection display system, projector and menu image display method for same
01/11/2005CA2261957C Return path ingress noise measurement system
01/11/2005CA2255690C Television schedule system with access control
01/06/2005US20050005307 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
01/06/2005US20050005303 System and method for transmitting and displaying interactive TV content
01/06/2005US20050005293 Method of acquiring program guide information, program guide method appropriate for the same, and program guide apparatus
01/06/2005US20050005286 System and method for activating individualized software modules in a digital broadcast environment
01/06/2005US20050005263 Information processing apparatus and method
01/06/2005US20050005120 Method and apparatus for controlling paired operation of a conditional access module and an integrated receiver and decoder
01/06/2005US20050002649 Displaying a program guide responsive to electronic program guide data and program recording indicators
01/06/2005US20050002525 RTP payload format
01/06/2005US20050002418 Device and method for receiving and transmitting digital multimedia broadcasting
01/06/2005US20050002405 Method system and data structure for multimedia communications
01/06/2005US20050002401 Interactive streaming media production tool using communication optimization
01/06/2005US20050002385 Interfacing a conditional access circuit to a digital device using input and output stream switching
01/06/2005CA2737868A1 A system and methods for assignation and use of media content subscription service privileges
01/05/2005EP1494481A2 Motion picture receiving device, motion picture transmitting device, and program
01/05/2005EP1494431A1 Information distribution system and method, information transmission apparatus and method, information reception apparatus and method, recording medium, and program
01/05/2005EP1494430A2 System and method for time synchronization between multimedia content and segment metadata
01/05/2005EP1494425A1 RTP Payload Format
01/05/2005EP1493278A2 Item display
01/05/2005EP1493277A2 Method and apparatus for recommending items of interest to a user based on recommendations of one or more third parties
01/05/2005EP1493268A1 Television system with payment in advance
01/05/2005CN1561642A Robust method for recovering a program time base in MPEG-2 transport streams and achieving audio/video synchronization
01/05/2005CN1561641A Intelligent delivery method for streamed content
01/05/2005CN1561589A Maintaining a global time reference among a group of networked devices
01/05/2005CN1561588A System and method for displaying group viewing statistics during television viewing
01/05/2005CN1561107A Interactive television program guide with remote access
01/05/2005CN1561101A Data recording method and apparatus, data reproducing method and apparatus, data recording medium
01/05/2005CN1561095A Method and apparatus for preparing and transmitting electronic program information and apparatus for producing electronic program guide