Cisco Technology, Inc.

Synamedia Limited

Hoi-tauw Jozef Chou

Glenn William Connery

W Paul Sherer

Howard Rollin Davis

Clint Earl Ricker

Gowdish Kumaraswamy

Daniel Michael Kiewlich

Neeraj Kumar Sharma

Robert Drew Major

John Pickens

David S Morgan

Kirk Blattman

Ivan V Legrand

Joshua B Gahm

William Paul Sherer

Mel J Oyler

Mahesh Viveganandhan

Kevin Wayne Kingdon

Andrew Palfreyman

Mahesh Chakravarthy Vittal Viveganandhan

Khalid Mohammed Azam

Gary Ward Richardson

Mel Oyer

Jonathan Gahm

In one embodiment, a method includes receiving a stored copy request indicating data and including a request identifier, scheduling publication of the data to an object store, and sending a subscription request indicating the data and the request identifier to the object store. In another embodiment, a method includes receiving a publication request indicating data to be copied, wherein the publication request is a recording request indicating a channel and a timespan, receiving one or more subscription requests for the data, receiving the data, and generating a copy of the data for each subscription request.

Storage system for recording and retrieving data copy for multiple users

In one embodiment, a method, system and apparatus are described, for uniquely storing, in a memory, for each one user among a plurality of users which recorded a content item, at least one segment of the recorded content item, generating metadata at a metadata generator, the metadata generator configured to associate, for one user among the plurality of users, the at least one segment of the recorded content item recorded by the one user, the metadata including a bitmap uniquely identifying the one user, and determining, at a processor, for each one user of the plurality of users, at least one offset value indicating at least one starting point for the at least one segment of the recorded content item for the one user, the at least one segment of the one user being disposed in a media sequence including a plurality of segments of the content item for different users of the users that recorded the content item, the at least one offset value being determined based, at least, on the bitmap uniquely identifying the one user and a byte size of the at least one segment of the recorded content item. Related methods, systems and apparatuses are also described.

Method and system for segment based recording

In one embodiment, a method includes receiving a segment of content, determining that the segment is referenced by at least one active record of a recordings database, and, responsive to the determination, storing the segment.

Segmented video content storage

A virtual content store may be provided. Upon receiving a request for a content stream from a subscriber at a regional headend, a central content vault may be examined to determine whether the content stream is available. Once the content stream is determined to be available in the central content vault, a streaming session may be established to the subscriber from the regional headend. The content stream may be retrieved from the central content vault and provided to the subscriber via the streaming session.

Virtual content store in interactive services architecture

In one embodiment, a network device analyzes an encoded stream to identify a timing value included in a packet before a splice point. Next, the device determines a difference between identified timing value and a timing value included in a packet of the encoded segment to be spliced. In conjunction with splicing, the network device formats timing values of packets according to the determined difference, which improves play out of the spliced stream.

Restamping transport streams to avoid vertical rolls

A technique for managing the streaming of digital video content to multiple clients involves identifying an attribute of a content element that is streamed to a client and selecting a protection mechanism for the content element as a function of the attribute, wherein the protection mechanism enables streaming of the content element to the clients in the event of a resource failure. In an example, the identified attribute is an indication of the popularity of the content element (e.g., as measured by the number of active streams), such that the protection mechanism is selected as a function of the popularity of the content element. In an embodiment, protection mechanisms that offer a higher level of protection are selected for the more popular content elements and protection mechanisms that offer a lower level of protection are selected for the less popular content elements.

Stream control failover utilizing an attribute-dependent protection mechanism

A technique for streaming digital video content to multiple clients involves establishing a logical group of IP-connected stream servers, generating state information at multiple stream servers within the logical group, sharing the state information amongst stream servers in the logical group, and using the shared state information to respond to resource failures within the logical group. By sharing state information within the logical group of stream servers, stream servers with the shared state information can quickly take over the active streams from a failed stream server within the logical group. The quick transition of responsibility from one stream server to another enables the streaming network to provide continuous streaming of digital video content to the viewer without interruption.

Stream control failover utilizing the sharing of state information within a logical group of stream servers

A method and system for managing media streaming between clients on a client side of a network and stream servers on a stream server side of the network, wherein communications between the client side and the stream server side require a network address translation (NAT), involves allowing the same stream server side IP address to be shared amongst multiple stream servers so that the stream servers can simultaneously use the same IP address to source different media sessions. Because the stream servers can simultaneously use the same IP address to source different media sessions, a media session can be switched from one stream server to a different stream server without triggering STUN signaling or a change in the NAT mapping.

Media streaming through a network address translation (NAT) device

A technique for transitioning streamed digital video content between stream servers involves identifying a transition identifier that indicates a point at which streaming of the digital video content transitions from a first stream server to a second stream server and then transitioning the streaming from the first stream server the second stream server at a point in the digital video content that corresponds to the transition identifier. For example, the first stream server stops streaming the digital video content at a point in the digital video content that corresponds to the transition identifier and the second stream server starts streaming the digital video content at a point in the digital video content that corresponds to the transition identifier.

Growing community of inventors

San Ramon, CA, United States of America

Hoi-tauw Jozef Chou