Patent application number | Description | Published |
20080310445 | Provisioning Bandwidth For A Digital Media Stream - Provisioning bandwidth for a digital media stream, the digital media stream characterized by a bandwidth, including adapting by a media server a first portion of the bandwidth for transmission of the content of a first channel and at least one second, smaller portion of the bandwidth for transmission of the content of at least one second channel; and transmitting, multiplexed together in the digital media stream, by the media server to a media display device, the content of the first channel and the content of the second channel, the content of the second channel transmitted with a lower quality than the content of the first channel. | 12-18-2008 |
20080310446 | Provisioning Bandwidth For A Digital Media Stream - Provisioning bandwidth for a digital media stream, the digital media stream characterized by a bandwidth, including monitoring, by a media display device, a user's viewing behavior to create a user profile; transmitting, to a media server, the user profile; and responsive to receiving, by the media server, a user selection of a first channel: selecting, for transmission to the media display device, in dependence upon the user profile, at least one second channel; adapting a first portion of the bandwidth for transmission of the content of the first channel and a second, smaller portion of the bandwidth for transmission of the content of the second channel; and transmitting, multiplexed together in the digital media stream, the content of the first channel and the content of the second channel, the content of the second channel transmitted with a lower quality than the content of the first channel. | 12-18-2008 |
20080310454 | Provisioning Bandwidth For A Digital Media Stream - Provisioning bandwidth for a digital media stream, the digital media stream characterized by a bandwidth, including receiving, by a media server from a media display device, information describing a user's anticipated viewing requirements; selecting, by the media server in dependence upon the information describing the user's anticipated viewing requirements, a first channel and at least one second channel; and before receiving, by the media server from the media display device, a user selection of either channel: adapting a first portion of the bandwidth for transmission of the content of a first channel and a second, smaller portion of the bandwidth for transmission of the content of the second channel; and transmitting, multiplexed together in the digital media stream, the content of the first channel and the content of the second channel, the content of the second channel transmitted with a lower quality than the content of the first channel. | 12-18-2008 |
20090034783 | SYSTEM AND METHOD FOR SOLVING THE BIRTHDAY PROBLEM WITH WATERMARKING - A system and method are provided for facilitating the playing of a watermarked video having the “birthday problem”. Consumers send the problem disc to an authorization center where the disc is analyzed to determine if it is a legitimate disc. The authorization center generates a digital certificate uniquely associated with the disc and with the video and embeds the digital certificate into the disc. The digital certificate will cause a video player to play the video without checking for the watermark. | 02-05-2009 |
20090034785 | System and Method for Solving the "Birthday Problem" with Watermarking - A system and method are provided for facilitating the playing of a watermarked video having the “birthday problem”. Consumers send the problem disc to an authorization center where the disc is analyzed to determine if it is a legitimate disc. The authorization center generates a digital certificate uniquely associated with the disc and with the video and embeds the digital certificate into the disc. The digital certificate will cause a video player to play the video without checking for the watermark. | 02-05-2009 |
20090157551 | Cryptographic Prescription System - A method, computer program product, and data processing system for secure automated dispensing of prescription medications are disclosed. A preferred embodiment of the present invention utilizes broadcast encryption to encrypt a prescription for storage on a machine-readable medium that is pre-written with a key management block (KMB). The KMB encodes a session key needed to read from or write to the medium. Each prescription-writing device and medication dispensing device is assigned a unique set of device keys, which are used to recover the session key from the medium. Only authorized devices are able to recover the session key from a medium's KMB. Thus, only authorized devices may read or validly write prescriptions from/to the machine-readable medium. Hence, only authorized providers can write fillable prescriptions and only authorized dispensers can dispense medications to fill those prescriptions. | 06-18-2009 |
20090216769 | Digital Rights Management of Captured Content Based on Criteria Regulating a Combination of Elements - When captured content is detected, the captured content is analyzed to determine whether any portion of the content is subject to digital rights management protection specified for content captured. Responsive to determining that the captured content is subject to a first digital rights management protection, a database is queried to select at least one digital rights management rule associated with a first restricted element specifying at least one first criteria for combining the first restricted element with at least one other element. A determination is made whether the first restricted element is combined with the at least one other element in the captured content. Responsive to detecting the first restricted element is combined with the at least one other element, the captured content rights controller determines a combined digital rights management protection rule reconciling the at least one first criteria for combining the first restricted element with the presence of the at least one other element. The combined digital rights management rule is applied to restrict use of the captured content. | 08-27-2009 |
20090217343 | Digital Rights Management of Streaming Captured Content Based on Criteria Regulating a Sequence of Elements - A captured content rights controller detects a first portion of streaming captured content and a second portion of the streaming captured content after the first portion of the streaming captured content is detected. The captured content rights controller determines whether rendering the second portion of the streaming captured content after the first portion of the streaming captured content is subject to at least one digital rights management protection rule for streaming captured content as specified by at least one owner of at least one restricted element within the streaming captured content captured independent of distribution of the content by the owner of the at least one restricted element within the streaming captured content. The captured content rights controller applies the at least one digital rights management protection rule to restrict rendering of the second portion of the streaming captured content after the first portion of the streaming captured content. | 08-27-2009 |
20090217344 | Digital Rights Management of Captured Content Based on Capture Associated Locations - When captured content is detected, the captured content is analyzed to determine whether any portion of the content is subject to digital rights management protection specified for content captured, where captured content is content captured independent of distribution of the content by an owner of at least one restricted element within the captured content. In response to determining that a portion of the captured content is subject to digital rights management protection, a database is queried to select at least one digital rights management rule associated with the portion and comprising at least one location based criteria. At least one relevant location is associated with the captured content. At least one digital rights management rule is applied to restrict usage of the captured content, with the at least one location based criteria specified by the at least one relevant location. In addition, in response to determining that the captured content is not subject to digital rights management protection, a certification is applied to the captured content designating a particular system that determined no portion of the captured content is subject to digital rights management protection. | 08-27-2009 |
20090242142 | PRIVACY SCREEN FOR A DISPLAY DEVICE - A privacy screen for a display device includes a frame having first and second opposing members joined by third and fourth opposing members that collectively define a central opening. The privacy screen further includes a transparent film extending across the central opening. The transparent film includes a plurality of vertical micro-louvers. The plurality of vertical micro-louvers are arranged in at least one of a first configuration wherein the plurality of micro-louvers are positioned at variable angles relative to a vertical fixed reference point, a second configuration wherein the plurality of micro-louvers have varying depths relative to the vertical fixed reference point, and a third configure wherein a spacing between adjacent ones of the plurality of micro-louvers varies relative to the vertical fixed reference point. | 10-01-2009 |
20100318677 | CONTENT PROTECTION CONTINUITY THROUGH AUTHORIZED CHAINS OF COMPONENTS - Provided is a method for the distribution and control of digital content such that Quality of Experience (QoE) is maintained. Content is protected from when the content is encrypted to when it is used. To ensure the QoE of particular content, a content owner embeds a list of required or preferred components that must be employed to render the content. The content owner's list of required or preferred components specifies specific components “trusted” to correctly process the content. The specified chain of preferred components is compared to possible devices in the system that processes the content. If there are multiple acceptable devices for a specific link, a preference system is employed to determine the device that executed the particular part of the chain. The preference system is based upon a number of factors, such as, but not limited to, performance characteristics, user preferences, expected stability, power requirements and system preferences. | 12-16-2010 |
20110026713 | Efficient Rebinding of Partitioned Content Encrypted Using Broadcast Encryption - Provided is a method for rendering media content wherein a request to render a first media content stored in a first partition is received, wherein the first partition stores the first and a second media content; the media content is correlated to a first management key block (MKB), binding ID (IDb) and authorization table (AT); the first MKB, IDb and AT are compared to a current MKB, IDb and AT; and if any of the first MKB, IDb or AT do not correspond to the current MKB, IDb or AT, respectively, generating a second partition by rebinding the first media content with respect to the current MKB, IDb and AT to generate a title key; and associating the first media content, the current MKB, IDb, AT and title key with the second partition, wherein the second media content remains associated with the first MKB, IDb, AT and partition. | 02-03-2011 |
20110161795 | INTER-APPLICATION DOCUMENT ACCESS - An operating system can be extended to allow open documents to be automatically transferred from one application to another without saving the open documents. When a request is received to use an open document from a first application in a second application, an open document unit can determine if the open document has not been saved. The open document unit can create a temporary file based on the open document. The open document unit can open the temporary file in the second application. In addition, the open document unit can convert the temporary file into a format compatible with the second application if the temporary file's format is not compatible with the second application. | 06-30-2011 |
20110289601 | DIGITAL RIGHTS MANAGEMENT OF STREAMING CAPTURED CONTENT BASED ON CRITERIA REGULATING A SEQUENCE OF ELEMENTS - A captured content rights controller detects a first portion of streaming captured content and a second portion of the streaming captured content after the first portion of the streaming captured content is detected. The captured content rights controller determines whether rendering the second portion of the streaming captured content after the first portion of the streaming captured content is subject to at least one digital rights management protection rule for streaming captured content as specified by at least one owner of at least one restricted element within the streaming captured content captured independent of distribution of the content by the owner of the at least one restricted element within the streaming captured content. The captured content rights controller applies the at least one digital rights management protection rule to restrict rendering of the second portion of the streaming captured content after the first portion of the streaming captured content. | 11-24-2011 |
20120131337 | DEVICE ARCHIVING OF PAST CLUSTER BINDING INFORMATION ON A BROADCAST ENCRYPTION-BASED NETWORK - Provided are techniques for the creation and storage of an archive for binding IDs corresponding to a cluster of devices that render content protected by a broadcast encryption scheme. When two or more clusters are merged, a binding ID corresponding to one of the clusters is selected and a new management key is generated. Binding IDs associated with the clusters other than the cluster associated with the selected binding ID are encrypted using the new management key and stored on a cluster-authorized device in a binding ID archive. Content stored in conformity with an outdated binding ID is retrieved by decrypting the binding ID archive with the management key, recalculating an old management key and decrypting the stored content. | 05-24-2012 |
20120131338 | AUTHENTICATION AND AUTHORIZATION OF A DEVICE BY A SERVICE USING BROADCAST ENCRYPTION - Provided are techniques to enable a device that provides a service to authorize a second device for receiving the service and the delivery of the service to the second device and other devices within a trusted network. A signed Management Key Block (MKB) is generated and transmitted over a network. Devices authorized to access a particular service parse the MKB and transmit a request. A server associated with the service determines whether or not the device is authorized to access the service based upon data included in the request. The first device may issue a challenge to the second device for authentication purposes. If service is approved, service is initiated, either from the first device or another authorized device. Devices may be organized into classes such that devices of a specific class are authorized to access the service. | 05-24-2012 |
20120131344 | IDENTIFYING AND LOCATING AUTHENTICATED SERVICES USING BROADCAST ENCRYPTION - Provided are techniques to enable, using broadcast encryption, a device to locate a service offered by a server with the knowledge that the service offered by the server is a trusted service. A signed enhanced Management Key Block (eMKB) includes a trusted service locator (TSL) that includes one or more records, or “trusted service data records” (TSDRs), each identifying a particular service and a corresponding location of the service is generated and transmitted over a network. Devices authorized to access a particular service parse the eMKB for the end point of the service, connect to the appropriate server and transmit a request. | 05-24-2012 |
20120131638 | PROCESSING PERFORMANCE OF REPEATED DEVICE COMPLIANCE UPDATE MESSAGES - A message comprising an indication of a management key block and an indication of an authorization table is received at a first network device from a second network device. The indication of the management key block, the indication of the authorization table, and a response message generated based on validating the indication of the management key block and the indication of the authorization table are stored. A second message comprising a second indication of the management key block and a second indication of the authorization table is received at the first network device from the second network device. The first network device communicates with the second network device in accordance with the stored response associated with the first message on determining that the second indication management key block and the second indication of the authorization table match corresponding stored indications of the management key block and the authorization table. | 05-24-2012 |
20120148049 | Handling Medical Prescriptions in a Secure Fashion - Techniques for secure automated dispensing of prescription medications utilize broadcast encryption to encrypt a prescription for storage on a machine-readable medium that is pre-written with a key management block (KMB). The KMB encodes a session key needed to read from or write to the medium. Each prescription-writing device and medication dispensing device is assigned a unique set of device keys, which are used to recover the session key from the medium. Only authorized devices are able to recover the session key from a medium's KMB. Thus, only authorized devices may read or validly write prescriptions from/to the machine-readable medium. In this manner, only authorized providers can write fillable prescriptions and only authorized dispensers can dispense medications to fill those prescriptions. | 06-14-2012 |
20120201418 | DIGITAL RIGHTS MANAGEMENT OF CAPTURED CONTENT BASED ON CAPTURE ASSOCIATED LOCATIONS - A certification is received from a user stating that captured content does not comprise a particular restricted element and a request from the user for an adjustment of a digital rights management rule identified for the captured content based on the captured content comprising the particular restricted element. At least one term of the digital rights management rule is adjusted to reflect that the captured content does not comprise the particular restricted element. The usage of the captured content by the user is monitored to determine whether the usage matches the certification statement. | 08-09-2012 |
20120308002 | DEVICE ARCHIVING OF PAST CLUSTER BINDING INFORMATION ON A BROADCAST ENCRYPTION-BASED NETWORK - Provided are techniques for the creation and storage of an archive for binding IDs corresponding to a cluster of devices that render content protected by a broadcast encryption scheme. When two or more clusters are merged, a binding ID corresponding to one of the clusters is selected and a new management key is generated. Binding IDs associated with the clusters other than the cluster associated with the selected binding ID are encrypted using the new management key and stored on a cluster-authorized device in a binding ID archive. Content stored in conformity with an outdated binding ID is retrieved by decrypting the binding ID archive with the management key, recalculating an old management key and decrypting the stored content. | 12-06-2012 |
20130007214 | Content Protection Continuity Through Authorized Chains of Components - Provided is techniques for the distribution and control of digital content such that Quality of Experience (QoE) is maintained. Content is protected from when the content is encrypted to when it is used. To ensure the QoE of particular content, a content owner embeds a list of required or preferred components that must be employed to render the content. The content owner's list of required or preferred components specifies specific components “trusted” to correctly process the content. The specified chain of preferred components is compared to possible devices in the system that processes the content. If there are multiple acceptable devices for a specific link, a preference system is employed to determine the device that executed the particular part of the chain. The preference system is based upon a number of factors, such as, but not limited to, performance characteristics, user preferences, expected stability, power requirements and system preferences. | 01-03-2013 |
20130022200 | Broadcast Encryption Based Security System - Provided are techniques for providing a home or business security system that relies upon data encryption for both communication and the storage of content. The disclosed technology incorporates all the devices necessary for a comprehensive security system, including, but not limited to, controllers, monitors, alarms and communication media. The system may include an unlimited number of devices and, further, individual devices may be added and removed as needed. Users may define and change the boundaries of a security system or, in other words, decide what devices to include or not include in such a system. A defined boundary does not need to be confined to a single location. In one embodiment, the claimed subject matter incorporates xCP based broadcast encryption technology. | 01-24-2013 |