公开(公告)号：US11228427B2

公开(公告)日：2022-01-18

申请号：US14618598

申请日：2015-02-10

申请人： Ericsson AB

发明人： Raj Nair ,  Kevin J. Ma ,  Mikhail Mikhailov

IPC分类号： H04L9/08 ,  H04L9/14

摘要： A method and a user device are disclosed for securing streaming content decryption. The method includes receiving at the user device a manifest for requested content, the manifest providing a Content Encryption Key (CEK) that is encrypted using a first public Key Encryption Key (KEK), a corresponding first private KEK being stored in secure storage on the user device; decrypting, inside a secure processing zone on the user device, the CEK using the first private KEK to create a decrypted content key; decrypting, inside the secure processing zone, requested content using the decrypted content key to form decrypted content; and providing the decrypted content to a decoder on the mobile user device.

公开(公告)号：US10929513B2

公开(公告)日：2021-02-23

申请号：US16817036

申请日：2020-03-12

申请人： Ericsson AB

发明人： Alan Rouse

IPC分类号： G06F21/10

摘要： Presented is a television and methods for decrypting digital data, which is encrypted using one of a plurality of different encryption techniques. A television can receive a digital content stream from a service provider. The digital stream includes the digital content, a decryption module, and metadata. A television can further extract the decryption module as instructed by the metadata from the digital content stream. A television can further decrypt the digital content with the extracted decryption module and a decryption key.

公开(公告)号：US10728484B2

公开(公告)日：2020-07-28

申请号：US14050034

申请日：2013-10-09

申请人： ERICSSON AB

发明人： Charles Hammett Dasher ,  Chris Phillips

IPC分类号： H04N7/173 ,  H04N5/44 ,  H04N21/475 ,  H04N21/41 ,  H04N21/422 ,  H04N21/258

摘要： A method of controlling delivery of video programs from video distribution equipment to video receiver devices includes receiving messages at the video distribution equipment from a mobile terminal operated by a user. The messages contain user defined identifiers that are associated with equipment identifiers of different ones of the video receiver devices. The user defined identifiers are stored associated with the equipment identifiers in a subscriber account. Delivery of video programs from the video distribution equipment to the video receiver devices is controlled in response to commands received from the mobile terminal which request delivery of identified video programs to identified ones of the user defined identifiers. Related video distribution equipment and mobile terminals are disclosed.

公开(公告)号：US10404541B2

公开(公告)日：2019-09-03

申请号：US15437118

申请日：2017-02-20

申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

发明人： Chris Phillips ,  Robert Hammond Forsman ,  Jennifer Ann Reynolds ,  Vishal Changrani

IPC分类号： G06F15/16 ,  H04L12/24 ,  H04L12/28 ,  H04L29/06 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L12/911

摘要： A system, apparatus, and method for controlling data usage at a customer premises. A gateway configured as a single point of entry receives all data entering the premises. A DataCap Management Unit monitors all data usage by client devices within the premises and uses either a linear regression model or a historical usage alpha-generation method to analyze data usage patterns at the premises and to predict future data usage at the premises for a current billing cycle. The DataCap Management Unit dynamically adjusts a premises bandwidth cap throughout the current billing cycle, using the predicted future data usage as an input, to smoothly keep actual total data usage for the current billing cycle from exceeding a data cap before the current billing cycle ends.

公开(公告)号：US10395012B2

公开(公告)日：2019-08-27

申请号：US15925482

申请日：2018-03-19

申请人： ERICSSON AB

发明人： Mikhail Mikhailov ,  Raj Nair

IPC分类号： G06F21/00 ,  G06F21/12 ,  G06F21/10 ,  G06F21/57 ,  H04L9/32 ,  G06F21/44

摘要： A client device for media playback includes a user-installable media client application which implements the client-side of a digital rights management (DRM) system. The client device employs secure boot and verifies the user-installed application. The application is hardened against reverse engineering, and it utilizes a special API provided by the client device to tie into the secure boot, bridging the gap between the secure boot and the client-side of the DRM system contained within the application.

公开(公告)号：US10349104B2

公开(公告)日：2019-07-09

申请号：US14830109

申请日：2015-08-19

申请人： Ericsson AB

发明人： Chris Phillips ,  Rickard Sjöberg ,  Robert Hammond Forsman ,  Ian Tapp

IPC分类号： H04L29/06 ,  H04L29/08 ,  H04N21/24 ,  H04N21/234 ,  H04N21/254 ,  H04N21/258 ,  H04N21/647 ,  H04N21/845 ,  H04N21/2343 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2662

摘要： A complexity-driven adaptive quality scheme for managing segment delivery and bandwidth allocation in an ABR network. Segments for downloading to a requesting ABR client may be selected based on encoding complexity data associated therewith, wherein a virtual segmenter may operate to represent the media segments in a memory using associated pointers. In a bandwidth management configuration using a WFQ scheduling mechanism, delivery weights may be modified based on the complexity data.

公开(公告)号：US10194181B2

公开(公告)日：2019-01-29

申请号：US15812728

申请日：2017-11-14

申请人： ERICSSON AB

发明人： Chris Phillips ,  Jennifer Ann Reynolds ,  Robert Hammond Forsman ,  Kuheli Haldar

IPC分类号： H04N7/173 ,  H04N21/2385 ,  H04N21/6405 ,  H04N21/643 ,  H04N21/438 ,  H04N21/647 ,  H04N21/2343 ,  H04N21/6379 ,  H04N21/6408 ,  H04N21/845

摘要： A system and method for effectuating channel changes in a multicast adaptive bitrate (MABR) streaming network using a dedicated bandwidth pipe for burst transmitting a requested channel's data. A video management agent is configured to stitch burst-transmitted data with the regular channel stream during the channel change to generate a hybrid stream, which is multicast streamed toward the requesting device. Once the data from the regular channel stream is properly joined, burst transmission ceases and the bandwidth consumed for sending burst-transmitted data is released.

公开(公告)号：US10169550B2

公开(公告)日：2019-01-01

申请号：US15650862

申请日：2017-07-15

申请人： Ericsson AB

发明人： Alan Rouse

IPC分类号： G06F21/10

摘要： Presented is a system and methods for receiving metadata, a decryption module and encrypted content from a cable headend, decrypting the encrypted content with the decryption module and presenting the decrypted content to a user. The client device can receive, load and execute any decryption module compatible with the system framework allowing flexibility in the choice or changing of client device manufacturer and/or Digital Rights Management system vendor.

公开(公告)号：US10116556B2

公开(公告)日：2018-10-30

申请号：US14985133

申请日：2015-12-30

申请人： Ericsson AB

发明人： Naiming Shen

IPC分类号： H04L12/28 ,  H04L12/713 ,  H04L12/46 ,  H04L12/701 ,  H04L12/741 ,  H04L12/751

摘要： Techniques for routing and forwarding between multiple virtual routers implemented by a single device are described. A second virtual router is configured to learn routes from a first virtual router. A first route is inserted into a first routing table of the first virtual router, which includes a next hop corresponding to a physical network interface of the device leading to an external destination. The first route is distributed to a second virtual router to be installed in a second routing table as a second route, responsive to the second virtual router begin configured to learn routes from the first virtual router. Responsive to receiving a packet, the packet is forwarded according to a forwarding table entry corresponding to the second route of the second routing table to send the packet using the physical network interface to the external destination.

公开(公告)号：US10075924B2

公开(公告)日：2018-09-11

申请号：US12270938

申请日：2008-11-14

申请人： Hang Zhang ,  Mo-Han Fong

发明人： Hang Zhang ,  Mo-Han Fong

IPC分类号： H04W52/26 ,  H04L1/00 ,  H04W36/16 ,  H04W52/14 ,  H04W52/28 ,  H04W72/12 ,  H04L1/16 ,  H04W52/60 ,  H04W72/14

CPC分类号： H04W52/267 ,  H04L1/0026 ,  H04L1/16 ,  H04L2001/0093 ,  H04W36/16 ,  H04W52/146 ,  H04W52/285 ,  H04W52/60 ,  H04W72/1289 ,  H04W72/14

摘要： A wireless system has a high rate data channel for time multiplexed communications to multiple mobile stations (MSs). Control channels include a forward link common power control channel and reverse link feedback channels for pilot, forward channel quality, and data acknowledgements from each MS. An MS can have an active state for data communications, for which these control channels are used at the full (time slot) rate, or a control hold state, in which acknowledgements are not needed and the others of these control channels can be shared among a plurality of MSs in the control hold state and each using a reduced rate such as ½, ¼, or ⅛ of the full rate. The arrangement can support an increased number of active MSs, facilitating an increased total throughput on the high rate data channel, without increasing system resources for the control channels.