# Patent

## Title
Apparatus and methods for ensuring delivery of geographically relevant content

## Abstract

Apparatus and methods for ensuring delivery of geographically relevant content to IP-enabled user devices associated with a content distribution network. In one embodiment, the network (or designated content source) determines a geographic context or location of the user device, and uses this information to manage the packaging and delivery of content thereto so as to obey blackout restrictions and/or provide content which is relevant to the geographic context/location. In one variant, the user device comprises a mobile device such as a tablet computer or smartphone, and the content is delivered thereto over either a managed or unmanaged network infrastructure.

## Background
PRIORITY AND RELATED APPLICATIONS
This application is a continuation of and claims priority to co-owned, U.S. patent application Ser. No. 13/437,621 filed Apr. 2, 2012 of the same title, issuing as U.S. Pat. No. 8,838,149 on Sep. 16, 2014, and incorporated herein by reference in its entirety. The present invention is related to co-owned, co-pending U.S. patent application Ser. No. 13/403,802 filed on Feb. 23, 2012 and entitled “APPARATUS AND METHODS FOR PROVIDING CONTENT TO AN IP-ENABLED DEVICE IN A CONTENT DISTRIBUTION NETWORK”; U.S. patent application Ser. No. 13/403,814 filed on Feb. 23, 2012 and entitled “APPARATUS AND METHODS FOR CONTENT DISTRIBUTION TO PACKET-ENABLED DEVICES VIA A NETWORK BRIDGE”; and co-owned U.S. patent application Ser. No. 12/766,753 filed on Apr. 23, 2010 and entitled “ZONE CONTROL METHODS AND APPARATUS”, which is now published as U.S. Patent Application Publication No. 2011/0265116, and patented as U.S. Pat. No. 8,701,138, each of which is incorporated herein by reference in its entirety.


COPYRIGHT
A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.
BACKGROUND OF THE INVENTION
1. Field of Invention
The invention relates generally to the field of data and content distribution and delivery via a content distribution or other network. In one exemplary aspect, the invention relates to the delivery of content which is geographically relevant to an Internet Protocol (IP) enabled device.
2. Description of Related Technology
Content distribution networks (such as e.g., Cable Television (CATV), satellite, or hybrid fiber/copper (HFCu) systems) provide content from various content sources at a network headend to a plurality of subscriber devices. In a typical “managed” network, a network operator (e.g., multiple systems operator or MSO) provides access to content via the network. Generally, the MSO provides audio/video content to subscribers via the network headend.
Recent advances in digital information processing and technology have made a broad range of services and functions available for delivery to consumers at various types of devices for very reasonable prices (or subscription fees). These services and functions include delivery of digital content or programming (movies, etc.), digital video-on-demand (VOD) services, personal video recorder (PVR) and networked PVR (nPVR) services, Internet Protocol television (IPTV), digital media playback and recording, as well high speed Internet access (including so-called “Internet TV”, where television programming is delivered over the Internet with or without QoS) and IP-based telephony (e.g., VoIP). Other services available to network users include without limitation access to, and recording of, digital music (e.g., MP3 files), and submission of user-generated media (e.g., home-grown YoutubeTM videos, etc.).
Currently, many of these services are provided to users via a variety of different equipment environments and delivery paradigms including, inter alia, cable or satellite modems or QAMs, HFCu (i.e., Hybrid Fiber-copper distribution via indigenous POST/PSTN and/or coaxial wiring in a premises), optical fiber such as FTTC, FTTH, etc., Wi-FiTM hubs. WiMAX (802.16) and cellular wireless networks, Ethernet hubs, gateways, switches, and routers, and to a plurality of user equipment types (e.g., set-top boxes, personal (desktop) computers, laptop computers, other mini-computers such as so-called “netbooks” and mini-notebook computers, and/or other devices). Recent advances in consumer electronics have also led to the widespread introduction of a variety of portable media devices (PMDs) such as, inter alia, portable digital music devices such as the well known Apple iPodTM and iPadTM, and other so-called “MP3 players”, cellular telephones/smartphones, handheld computers, tablets such as the KindleTM and NookTM and iPadTM, and personal digital assistants (PDA), which allow users to store and playback audio and video files.
Often, content which is provided to consumers is in some way linked or associated to a particular geographic location or region. For example, programming such as news broadcasts, advertisements, sporting events, is tied to the geographic location in which the content is broadcast. Even movies or other programs may have particular geographic relevance, such as where the story line or topic is in some tied to a geographic point of interest or locale.
Furthermore, contractual provisions between content sources and content providers indicate specific programming events which may be “blacked out” in certain geographic areas, or for which alternative programming is available depending on geographic area. For instance, a sporting event may be restricted to areas outside of the local market, so as to enhance ticket sales to the live event. Although the event is typically called a blackout event, the subscriber will be shown or directed to an alternate program.
In another example, certain so-called local programming (such as local advertisements or news broadcasts, or even emergency broadcasts) are substituted based on geographic location. The alternate program event is often based on a pre-determined time and negotiated program rights by the programmer.
However, the propagation of the aforementioned myriad of services and devices for receiving content, including various mobile devices (i.e., devices which are not fixed to a particular geographic location), creates significant obstacles to the enforcement of geographic restrictions on content. Such obstacles arise for example, because a typical content delivery network (CDN) is not physically tied to or associated with a given locality. Rather, a CDN serves a broad (even national) footprint, without knowledge of or adaptation to the particular geographic areas served.
There currently exists no mechanism for ensuring delivery of geographically relevant content to IP-enabled mobile devices (or other devices not associated to a fixed location). Thus, what is needed is a system which is able to deliver the appropriate programming content based on locality of a mobile client device.
SUMMARY OF THE INVENTION
The present invention provides, inter alia, apparatus and methods for the delivery of geographically relevant content to IP-enabled devices including mobile devices.
In one aspect of the present invention, a method of delivering content that is geographically relevant to an IP-enabled client device is disclosed. In one embodiment, the method includes: obtaining content which has a geographic relevance associated therewith; receiving a request for the content from the client device, the client device having a geographic context associated therewith; generating a playlist for the requested content, the generated playlist having at least one trigger associated therewith; and providing the playlist to the client device for use by the client device in obtaining a redirection link based on the at least one trigger.
In another embodiment, the method includes: obtaining content; packaging a plurality of versions of the content, the plurality of versions each comprising respective triggers having different geographic contexts associated therewith; and providing the plurality of different versions to respective ones of IP-enabled user devices, the providing being based at least in part on geography-specific identification information associated with the respective client devices.
In a second aspect of the invention, an IP-enabled client apparatus configured to receive geographically relevant content is disclosed. In one embodiment, the apparatus is a mobile device and includes: a cellular or other wireless transceiver; a processor in signal communication with the transceiver; and logic in communication with the processor and configured to: receive content in the form of a playlist having one or more triggers associated therewith. The mobile apparatus reads the playlist including the one or more triggers, and uses one or more URLs or other links obtained using the playlist to obtain alternate content to the requested blacked out or geographically irrelevant content.
In another embodiment, the client apparatus is a mobile apparatus configured to receive IP media data via a content distribution network, and includes: a processor; a storage device in data communication with the processor, the storage device comprising a computer program configured to: generate a request for user-selected content for transmission to a first entity, the request including information which may be used by the first entity in determining a geographic context of the mobile apparatus; receive from the network a manifest or playlist for the user-selected content, the manifest or playlist including one or more markers; and utilize at least one of the one or more markers to access a second entity to obtain replacement or alternate content.
In a fourth aspect of the invention, a computer readable apparatus is disclosed. In one embodiment, the apparatus includes a storage medium having a computer program disposed thereon, the program configured to, when executed, provide a request for content including device identification information, the device identification information being useful in obtaining the geographic context of the device.
In a fifth aspect of the invention, a network architecture is disclosed. In one embodiment, the architecture is part of a managed content distribution network, and the architecture includes a geographic enforcement entity configured to determine the geographic context of requesting client devices, and enforce blackout or other programming restrictions on content requested by those devices based at least on the geographic context of the requesting device.
In another embodiment, the geographic enforcement entity utilizes the geographic context of the device(s) to suggest geographically relevant content (e.g., advertisements or content particularly applicable to the location of the client device).
Other features and advantages of the present invention will immediately be recognized by persons of ordinary skill in the art with reference to the attached drawings and detailed description of exemplary embodiments as given below.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a functional block diagram illustrating an exemplary HFC cable network configuration useful with the present invention.
FIG. 1a is a functional block diagram illustrating one exemplary embodiment of a packetized content delivery network architecture useful with the present invention.
FIG. 2 is a functional block diagram illustrating one exemplary embodiment of network architecture for delivery of geographically relevant content to an IP-enabled device according to the present invention.
FIG. 2a is a functional block diagram illustrating another exemplary embodiment of network architecture, configured for delivery of geographically relevant content to an IP-enabled device using a virtual IRD.
FIG. 2b is a functional block diagram illustrating a portion of the exemplary network architecture of FIG. 2a. 
FIG. 3 is a logical flow diagram illustrating one embodiment of a method for providing geographically relevant content to an IP-enabled device via a content distribution network, such as the network of FIG. 2.
FIG. 4 is a functional block diagram illustrating another exemplary embodiment of a network architecture, configured for delivery of geographically relevant content to an IP-enabled device according to the present invention.
FIG. 4a is a functional block diagram illustrating another exemplary embodiment of a network architecture, configured for delivery of geographically relevant content to an IP-enabled device using detailed scheduling information.
FIG. 4b is a functional block diagram illustrating a portion of the exemplary network architecture of FIG. 4a. 
FIG. 4c is a functional block diagram illustrating another exemplary embodiment of a network architecture, configured for delivery of geographically relevant content to an IP-enabled device using detailed scheduling information and a location service and entitlement service.
FIG. 5 is a logical flow diagram illustrating one embodiment of a method for providing geographically relevant content to an IP-enabled device via a content distribution network, such as the network of FIG. 4.
FIG. 6 is a logical flow diagram illustrating one embodiment of a method for ensuring that an initial tune request for content yields geographically relevant content.
FIG. 7 is a logical flow diagram illustrating an exemplary method for ensuring that an in-band transition event yields geographically relevant content.
FIG. 8 is a functional block diagram illustrating an exemplary embodiment of an apparatus configured to ensure delivery of geographically relevant content to a plurality of IP-enabled devices in a content delivery network.



All Figures © Copyright 2012 Time Warner Cable, Inc. All rights reserved.
DETAILED DESCRIPTION OF THE INVENTION
Reference is now made to the drawings wherein like numerals refer to like parts throughout.
As used herein, the term “application” refers generally and without limitation to a unit of executable software that implements a certain functionality or theme. The themes of applications vary broadly across any number of disciplines and functions (such as on-demand content management, e-commerce transactions, brokerage transactions, home entertainment, calculator etc.), and one application may have more than one theme. The unit of executable software generally runs in a predetermined environment; for example, the unit could comprise a downloadable Java XletTM that runs within the JavaTVTM environment.
As used herein, the terms “client device” and “end user device” include, but are not limited to, set-top boxes (e.g., DSTBs), gateways, modems, personal computers (PCs), and minicomputers, whether desktop, laptop, or otherwise, and mobile devices such as handheld computers, PDAs, personal media devices (PMDs), tablets, and smartphones.
As used herein, the term “codec” refers to a video, audio, or other data coding and/or decoding algorithm, process or apparatus including, without limitation, those of the MPEG (e.g., MPEG-1, MPEG-2, MPEG-4/H.264, etc.), Real (RealVideo, etc.). AC-3 (audio), DiVX, XViD/ViDX, Windows Media Video (e.g., WMV 7, 8, 9, 10, or 11), ATI Video codec, or VC-1 (SMPTE standard 421M) families.
As used herein, the term “computer program” or “software” is meant to include any sequence or human or machine cognizable steps which perform a function. Such program may be rendered in virtually any programming language or environment including, for example, C/C++. Fortran, COBOL, PASCAL, assembly language, markup languages (e.g., HTML, SGML, XML, VoXML), and the like, as well as object-oriented environments such as the Common Object Request Broker Architecture (CORBA), JavaTM (including J2ME. Java Beans, etc.), Binary Runtime Environment (e.g., BREW), and the like.
The terms “Consumer Premises Equipment (CPE)” and “host device” refer without limitation to any type of electronic equipment located within a consumer's or user's premises and connected to a network. The term “host device” includes terminal devices that have access to digital television content via a satellite, cable, or terrestrial network. The host device functionality may be integrated into a digital television (DTV) set. The term “consumer premises equipment” (CPE) includes such electronic equipment such as set-top boxes, televisions. Digital Video Recorders (DVR), gateway storage devices (Furnace), and ITV Personal Computers.
As used herein, the term “DOCSIS” refers to any of the existing or planned variants of the Data Over Cable Services Interface Specification, including for example DOCSIS versions 1.0, 1.1, 2.0 and 3.0.
As used herein, the term gateway includes, without limitation, devices configured to interface with a network, and pass signals to or exchange signals with, another device in communication therewith. Various exemplary gateways are described in, inter alia, co-owned and co-pending U.S. patent application Ser. No. 11/818,236 filed on Jun. 13, 2007 entitled “PREMISES GATEWAY APPARATUS AND METHODS FOR USE IN A CONTENT-BASED NETWORK”. U.S. patent application Ser. No. 12/582,619 filed on Oct. 20, 2009 and entitled “GATEWAY APPARATUS AND METHODS FOR DIGITAL CONTENT DELIVERY IN A NETWORK”, and U.S. patent application Ser. No. 12/480,597 filed on Jun. 8, 2009 and entitled “MEDIA BRIDGE APPARATUS AND METHODS”, each of the foregoing being incorporated herein by reference in its entirety.
As used herein, the term “headend” refers generally to a networked system controlled by an operator (e.g., an MSO or multiple systems operator) that distributes programming to MSO clientele using client devices. Such programming may include literally any information source/receiver including, inter alia, free-to-air TV channels, pay TV channels, interactive TV, and the Internet.
As used herein, the terms “Internet” and “internet” are used interchangeably to refer to inter-networks including, without limitation, the Internet.
As used herein, the terms “microprocessor” and “digital processor” are meant generally to include all types of digital processing devices including, without limitation, digital signal processors (DSPs), reduced instruction set computers (RISC), general-purpose (CISC) processors, microprocessors, gate arrays (e.g., FPGAs), PLDs, reconfigurable computer fabrics (RCFs), array processors, secure microprocessors, and application-specific integrated circuits (ASICs). Such digital processors may be contained on a single unitary IC die, or distributed across multiple components.
As used herein, the terms “MSO” or “multiple systems operator” refer without limitation to a cable, fiber to the home (FTTH), fiber to the curb (FTTC), satellite. Hybrid Fiber Copper (HFCu), or terrestrial network provider having infrastructure required to deliver services including programming and data over those mediums.
As used herein, the terms “network” and “bearer network” refer generally to any type of telecommunications or data network including, without limitation, hybrid fiber coax (HFC) networks, HFCu networks, satellite networks, telco networks, and data networks (including MANs, WANs, LANs, WLANs, internets, and intranets). Such networks or portions thereof may utilize any one or more different topologies (e.g., ring, bus, star, loop, etc.), transmission media (e.g., wired/RF cable. RF wireless, millimeter wave, optical, etc.) and/or communications or networking protocols.
As used herein, the term “interface” refers to any signal, data, or software interface with a component, network or process including, without limitation, those of the FireWire (e.g., FW400, FW800, etc.). USB (e.g., USB2), Ethernet (e.g., 10/100, 10/100/1000 (Gigabit Ethernet), 10-Gig-E, etc.), MoCA, Coaxsys (e.g., TVnetTM), radio frequency tuner (e.g., in-band or OOB, cable modem, etc.). Wi-Fi (802.11), WiMAX (802.16), PAN (e.g., 802.15), cellular (e.g., 3G. LTE/LTE-A/TD-LTE. GSM, etc.) or IrDA families.
As used herein, the term “node” refers to any functional entity associated with a network, such as for example an OLT or ONU, whether physically discrete or distributed across multiple locations.
As used herein, the term “QAM” refers to modulation schemes used for sending signals over cable networks. Such modulation scheme might use any constellation level (e.g. QPSK, 16-QAM, 64-QAM, 256-QAM, etc.) depending on details of a cable network. A QAM may also refer to a physical channel modulated according to the schemes.
As used herein, the term “server” refers to any computerized component, system or entity regardless of form which is adapted to provide data, files, applications, content, or other services to one or more other devices or entities on a computer system or network.
As used herein, the term “service”, “content”, “program” and “stream” are sometimes used synonymously to refer to a sequence of packetized data that is provided in what a subscriber may perceive as a service. A “service” (or “content”, or “stream”) in the former, specialized sense may correspond to different types of services in the latter, non-technical sense. For example, a “service” in the specialized sense may correspond to, among others, video broadcast, audio-only broadcast, pay-per-view, or video-on-demand. The perceivable content provided on such a “service” may be live, pre-recorded, delimited in time, undelimited in time, or of other descriptions. In some cases, a “service” in the specialized sense may correspond to what a subscriber would perceive as a “channel” in traditional broadcast television.
As used herein, the term “service group” refers without limitation to either a group of service users (e.g. subscribers), or the resources shared by them in the form of for example entire cable RF signal, only the RF channels used to receive the service or otherwise treated as a single logical unit by the network for resource assignment.
As used herein, the term “Wi-Fi” refers to, without limitation, any of the variants of IEEE-Std. 802.11 or related standards including 802.11a/b/g/n/s/v.
As used herein, the term “wireless” means any wireless signal, data, communication, or other interface including without limitation Wi-Fi, Bluetooth, 3G (3GPP/3GPP2). HSDPA/IISUPA, TDMA, CDMA (e.g., IS-95A, WCDMA, etc.), FHSS, DSSS, GSM, PAN/802.15, WiMAX (802.16), 802.20, narrowband/FDMA, OFDM, PCS/DCS, LTE/LTE-A/TD-LTE, analog cellular, CDPD, satellite systems, millimeter wave or microwave systems, acoustic, and infrared (i.e., IrDA).
Overview
In one salient aspect, the present invention discloses methods and apparatus for ensuring delivery of geographically relevant content to IP-enabled devices in or associated with a content distribution network. In one embodiment, the geographic relevance of IP content having an adaptive bitrate which is provided to mobile devices (such as e.g., cellular telephones, laptop computers, tablet devices, etc.) and displayed using multimedia streaming communications protocols such as e.g., Apple® HTTP Live Streaming (HLS) or Microsoft® Smooth Streaming is ensured, and where the content is not relevant, alternate content is provided such as via one or more URLs given to the mobile device.
In another embodiment, the architecture disclosed herein provides a means for enforcing blackout and alternate program events for content programmers. One implementation of the system enables delivery of sports and other programming types over a content delivery or even unmanaged network (i.e., delivery to IP-enabled mobile devices) while maintaining geographic restrictions thereof.
Under a first exemplary paradigm, content providers are utilized to make match-ups between a user's geographic area and one or more content elements. In one embodiment, this is accomplished through use of a minimal data set (MDS).
In an alternate paradigm, the match-ups are accomplished through use of a more detailed (“verbose”) data set processed by a headend or other network entity.
In yet another paradigm, elements of the forgoing MDS and verbose approaches are combined.
Additionally, the methods and apparatus disclosed herein flexibly allow client devices to be redirected to geographically relevant content (and away from geographically irrelevant or blacked out content) at both an initial tuning event and at an event which occurs during a current session or transmission.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
Exemplary embodiments of the apparatus and methods of the present invention are now described in detail. While these exemplary embodiments are described in the context of the aforementioned managed network (e.g., a hybrid fiber/coax cable architecture) having an multiple systems operator (MSO), digital networking capability, IP delivery capability, and plurality of client devices/CPE, the general principles and advantages of the invention may be extended to other types of networks and architectures, whether broadband, narrowband, wired or wireless, or otherwise, the following therefore being merely exemplary in nature. For example, the invention may be practiced over a fiber-to-the-home (FTTH) or fiber-to-the-curb (FTTC) system. HFCu networks, or over wireless, satellite or millimeter wave-based networks, as well as intranets and internets.
It will also be appreciated that while described generally in the context of a consumer (i.e., residential) end user domain, the present invention may be readily adapted to other types of environments (e.g., commercial/enterprise, government/military, etc.) as well. Myriad other applications are possible.
It is further noted that while exemplary embodiments are described primarily in the context of a hybrid fiber/conductor (e.g., cable) system with legacy 6 MHz RF channels, the present invention is applicable to literally any network topology or paradigm, and any frequency/bandwidth. Furthermore, as referenced above, the invention is in no way limited to traditional cable system frequencies (i.e., below 1 GHz), and in fact may be used with systems that operate above 1 GHz band in center frequency or bandwidth, to include without limitation so-called ultra-wideband systems.
Other features and advantages of the present invention will immediately be recognized by persons of ordinary skill in the art with reference to the attached drawings and detailed description of exemplary embodiments as given below.
Managed Content Delivery Network—
FIG. 1 illustrates a typical content delivery network configuration with which the apparatus and methods of the present invention may be used. The various components of the network 100 include (i) one or more data and application origination points 102; (ii) one or more content sources 103, (iii) one or more application distribution servers 104; (iv) one or more VOD servers 105, and (v) customer premises equipment (CPE) 106. The distribution server(s) 104, VOD servers 105 and CPE(s) 106 are connected via a bearer (e.g., HFC) network 101. The headend is also connected through a gateway or other such interface (not shown) to unmanaged external internetworks such as the Internet 111. A simple architecture comprising one of each of the aforementioned components 102, 104, 105, 106 is shown in FIG. 1 for simplicity, although it will be recognized that comparable architectures with multiple origination points, distribution servers. VOD servers, and/or CPE devices (as well as different network topologies) may be utilized consistent with the invention.
The data/application origination point 102 comprises any medium that allows data and/or applications (such as a VOD-based or “Watch TV” application) to be transferred to a distribution server 104. This can include for example a third party data source, application vendor website. CD-ROM, external network interface, mass storage device (e.g., RAID system), etc. Such transference may be automatic, initiated upon the occurrence of one or more specified events (such as the receipt of a request packet or ACK), performed manually, or accomplished in any number of other modes readily recognized by those of ordinary skill.
The application distribution server 104 comprises a computer system where such applications can enter the network system. Distribution servers are well known in the networking arts, and accordingly not described further herein.
The VOD server 105 comprises a computer system where on-demand content can be received from one or more of the aforementioned data sources 102 and enter the network system. These servers may generate the content locally, or alternatively act as a gateway or intermediary from a distant source (not shown).
The CPE 106 includes without limitation any equipment in the “customers' premises” (or other locations, whether local or remote to the distribution server 104) that can be accessed by a distribution server 104.
While the foregoing network architectures described herein can (and in fact do) carry packetized content (e.g., IP over MPEG for high-speed data or Internet TV, MPEG2 packet content over QAM for MPTS, etc.), they are often not optimized for such delivery. Hence, in accordance with another embodiment of the present invention, a “packet optimized” delivery network is used for carriage of the packet content (e.g., IPTV content) when the request issues from an MSO network. FIG. 1a illustrates one exemplary implementation of such a network, in the context of an IMS (IP Multimedia Subsystem) network with common control plane and service delivery platform (SDP), as described in co-pending U.S. patent application Ser. No. 12/764,746 filed Apr. 21, 2010 entitled “METHODS AND APPARATUS FOR PACKETIZED CONTENT DELIVERY OVER A CONTENT DELIVERY NETWORK”, incorporated herein by reference in its entirety. Such a network provides significant enhancements in terms of common control of different services, implementation and management of content delivery sessions according to unicast or multicast models, quality-of-service (QoS) for IP-packetized content streams, etc.; however, it is appreciated that the various features of the present invention are in no way limited to any of the foregoing architectures.
Geographic Enforcement Architecture and Methods—
Referring now to FIG. 2, an exemplary embodiment of a network architecture 200 for delivery of geographically relevant content to an IP-enabled device is given.
Generally, an operator of a managed content delivery network such as those of FIGS. 1 and 1a above negotiates rights to content and related data with various content providers 202. Among these rights are rules designating content which is specific to a particular geographic region. This may include rules indicating certain geographic areas which are not to receive certain content (so called “blackouts”), as well as alternatively programming that these areas are supposed to receive. Other geographic content restrictions or guidelines may also be utilized.
As will be understood in the present context, the terms “geographic region” and “location” may refer to a given point of interest (e.g., ZIP code, account address, GPS coordinate, geographic feature, etc.), a broader region (such as a metropolitan area, state, territory, etc.), or even a relative geographic reference (e.g., an n-mile radius around a fixed or moving reference point).
Moreover, the term “blackout” as used herein may refer to content which has temporal or other aspects as well as geographic ones. For example, programming may only be “blacked out” for a prescribed period of time (e.g., during certain weeks of the year, through the first half of a football game, up until a certain point in a local, state, or federal election, etc.), after which it is freely available for viewing.
It will also be appreciated that the geographic context or relationship of certain content may be a function of other variables or considerations, such as time. For instance, the geographic relevance or restrictions on a given content element may expire after a prescribed period, or after certain events occur, thereby making it freely available for distribution.
Moreover, a given content element itself may change its geographic relevance or context intra-element (i.e., one portion of the content element may be relevant to one location, and another portion to another location), such as where a travel-related program addresses different travel destinations, or a sports program switches between games at different locations or with teams originating from or associated with different locations.
Hence, the present invention contemplates not only the enforcement and delivery of “static” geographically relevant content (i.e., content whose relevance does not change), but also content with dynamically changing relevance or restrictions.
In one embodiment of the invention, the negotiated rights are implemented by the content provider 202. Accordingly, and as illustrated in FIG. 2, a minimal set of data (MSD) is provided by the content providers 202 to the geographic enforcement service (GES) 204. The set of data includes a headend identifier (or other device- or user-specific identifier) referenced to an alternative program. As will be described in greater detail below, the headend ID is used to identify a given requesting user device (e.g., mobile device) and associate it with a given geographic location or region.
In another embodiment, the rights are implemented at the GES 204, and thus a more detailed data set is provided (as will be discussed below with respect to FIGS. 4-5).
As shown in FIG. 2, the network 200 generally comprises a plurality of content providers 202 providing content and/or other webservices. The enforcement of geographic limitations is performed by a geographic enforcement service (GES) 204 which utilizes information obtained from the content providers, and an authorization service 206.
The GES 204 is further configured to manage content change-overs when restricted content is requested. As shown in FIG. 2, a receiver/decoder entity 208 of the network 200 receives content which is then encoded to an appropriate format (codec, bitrate, etc.) for the requesting device 106 at the encoder 210. The content contains a trigger which marks an event that is geographically restricted or otherwise of geographic interest. Triggering functions occur using in-band signaling. In one embodiment, the trigger comprises a Society of Cable Telecommunication Engineers (SCTE)-35 trigger of the type known in the art. Specifically, an SCTE-35 trigger is a cue message embedded in the transport stream which indicates an insertion event which is often used to, inter alia, indicate advertisement insertion points (see e.g., SCTE Standards Document ANSI/SCTE 118-2 2007 entitled “Program-Specific Ad Insertion—Content Provider to Traffic Communication Applications Data Model”, which is incorporated herein by reference in its entirety). In the exemplary embodiment of the present invention, however, the SCTE-35 cue is maintained within the manifest or playlist, and is used to trigger a redirection event (described in greater detail below), although it will be appreciated that traditional SCTE-35 cues may be used in addition to those used for content redirection.
Still further, the packager may use the Placement Opportunity Interface Specification (POIS) as described by SCTE Standards Document ANSI/SCTE 130-1 2008 entitled “Digital Program Insertion—Advertising Systems Interfaces”, which is incorporated herein by reference in its entirety, to signal to the alternate event service of alternate event notifications signaled via SCTE-35 triggers.
Encoded content is passed from the encoder 210 to the packager 212, where various service variants are generated and distributed to an origin server 214. The service variants created by the packager 212 correspond to the various services identified by the content providers 202. Thus, each service variant is, in the illustrated embodiment, provided a different playlist (or manifest) containing one or more triggers for varying content based on geographic restrictions or considerations associated to each service group. That is to say, the same content distributed to different geographic areas may have a different number of triggers, different placement of triggers, and/or comprise triggers referring to different “referred” content. In addition, certain service variants may have triggers embedded in the manifest which other variants may not have; this is the case, for example, when a particular content is “blacked out” in one geographic region, but not others.
When content is requested by the client 106, the request is serviced via the edge cache 216 which receives content from the origin server 214 discussed supra. Content may be stored at the edge 216 in order to facilitate delivery thereof with less latency than content delivered from the origin server 214 (or even deeper towards the core of the network). A content request from a client device 106 to the edge cache 216 in one implementation contains at least the headend ID (or other identifier) assigned to the device 106 by the authorization server 206. Alternatively, the MAC address or other device/user-specific identifier (e.g., IP address) which is associated with a known or determinable location may be utilized. The edge cache uses the identifier to ensure that the appropriate service variant is provided to the requesting device 106.
In another embodiment, the identifier of the device 106 may be linked to the physical location of the device at the time of the request. In one such implementation, the CPE 106 provides global positioning system (GPS) or other location data (e.g., association with or data from a wireless base station or access point/hotspot of known location. IP address, etc.) to the authorization server 206, which uses this information to assign a temporary headend ID (or other identifier). At each new request for content. GPS or other location data is provided and/or requested, and a new temporary headend ID is generated (if necessary).
During playback of the requested content according to the playlist thereof, the client may reach a trigger (such as a URL redirect trigger which is placed in a manifest at each instance of an SCTE-35 marker by the packager 212), indicating that content may no longer be provided, and/or alternate content is needed. The trigger event causes the CPE 106 to request an appropriate URL from the GES 204. The GES 204 consults a list of pre-designated alternative content provided by the content providers 202 to determine which URL (i.e., the URL for which content) should be transmitted to the device 106.
As will be discussed in greater detail elsewhere herein, other embodiments of the invention utilize an alternate events/content server to determine a geographic location of a requesting device based on information provided directly from the device, or by using a look-up system at the server. The look-up system may comprise for example a listing of geographic location to device associations based on e.g., subscriber account. IP address, etc.
FIG. 2a illustrates another exemplary embodiment of network architecture configured for delivery of geographically relevant content to an IP-enabled device using a virtual IRD. As shown, the embodiment corresponds generally to that of FIG. 2 discussed above; however, in addition, the authorization service communicates directly to the alternate event service (AES) and to an event scheduler of the content provider to (i) associate a virtual IRD to a locator ID of the client devices, and (ii) to register the virtual IRDs to a given geographic area. The content provider of this embodiment further comprises an encoder configured to mark alternative content events such as via SCTE-35 triggers embedded in the content stream. The stream is then provided to the client devices, and upon reaching a trigger or other in-band marker of an alternate program event, alternate programming is requested from the alternate event server and appropriate URL are provided (as discussed above). FIG. 2b illustrates an exemplary configuration of the headend portion of the network architecture of FIG. 2a. 
Referring now to FIG. 3, an exemplary embodiment of a method 300 for providing geographically relevant content to an IP-enabled device via a content distribution network, such as the exemplary network of FIG. 2 or 2a, is illustrated.
As shown, the method 300 comprises at step 302, an association process. During the association process, the “virtual IRD” (virtual integrated receiver/decoder) of the user device requesting access to content are associated to a headend identifier. The virtual IRD in one implementation includes a virtual construct of an IRD as a program provided from the provider. In a traditional blackout system, an IRD is shared across a geographic region; an authorization message is then sent to the regional IRD indicating a program stream suitable for that region. In this way, the IRD associates programs to a physical location. The virtual IRD of the present embodiment stands in the place of the traditional IRD to accept authorization messages for a particular geographic region. The virtual IRD in one implementation, does not perform any other functions of a traditional IRD (such as receiving and/or decoding content), but merely helps maintain association of a program to a physical location. The authorization service 206 of the exemplary network 200 may be utilized to assign the headend identifier (headend ID) or other device or user-specific identifier.
Each device is assigned a headend 1D (or other identifier) upon registration of the device to the network (step 304). Information including the headend ID (or other identifier), and other relevant information about the device and/or user, is also used to register a certain customers to a given geographic area.
In one embodiment, the registration process is similar to that discussed in co-owned and co-pending U.S. patent application Ser. No. 13/403,802 filed Feb. 23, 2012 and entitled “APPARATUS AND METHODS FOR PROVIDING CONTENT TO AN IP-ENABLED DEVICE IN A CONTENT DISTRIBUTION NETWORK”, which is incorporated herein by reference in its entirety. As discussed therein, in one variant, the registration process occurs at the first instance a subscriber attempts to access content via the herein described system. Alternatively, the subscriber may utilize a separate channel for registration, such as e.g., a website, call-in, etc. Registration may require creation of a login identity (such as a username) and password combination, although the present invention also contemplates use of other mechanisms for authenticating user and/or requesting device identity, including e.g., digital certificates, cryptographic hashes, key exchanges, biometric data relating to user, and so forth. Additionally, the login information (e.g., identity and password) may be linked to an existing subscriber account. It is appreciated, however, that other registration processes may be employed, the foregoing being merely illustrative of the overall concept of linking the particular subscriber account to the user/device requesting access. See, for example, co-owned and co-pending U.S. patent application Ser. No. 11/440,490 filed May 24, 2006 entitled “PERSONAL CONTENT SERVER APPARATUS AND METHODS”, which is incorporated herein by reference in its entirety, which describes inter alia exemplary schemes for user registration and access to content from various locations.
When a new device 106 attempts to access content from the network by entering the login information, the identity assignment and registration process are performed. If the subscriber (or device) has previously been registered, the user may simply login to the content distribution network services, the system recognizes the device and acknowledges its previously assigned headend ID.
Once the user device is logged in (i.e., identified as belonging to a known subscriber), it is assigned a headend ID (or other identifier) as discussed above. The assigned identifiers of the newly registered devices are then provided from the authorization service 206 to the content providers 202.
Next, per step 306 of the method 300, the content provider 202 creates a cross-reference list of identifiers (such as headend IDs) to appropriate services based on negotiated viewing rights. Each available service is associated to a relevant geographic region (listed by e.g., zip code, area code, or other identifying information) via the assigned identifiers. The match between the assigned user device identifiers (e.g., headend IDs) and geographic regions (e.g., zip codes) may be performed at the authorization service 206, the GES 204, or the content providers 202. The service list may then be utilized to coordinate the assigned identifiers with specific services.
At step 308, the content provider 202 publishes the matchup of headend ID to particular programming for use by the GES 204. A new list is generated, in one embodiment, based on particular events (such as a user request), or periodically, or whenever an event notification is needed. The GES may also request or “pull” the list from the content provider(s). The list is published to the GES 204 in one embodiment using a WebServices interface, although other approaches may be used consistent with the invention.
At step 310 of the method, the content is marked with one or more markers or triggers. In one embodiment, the markers comprise SCTE-35 markers as discussed above, and indicate alternate program events. In one such implementation, the content provider 202 is responsible for marking events. Alternatively, the content provider 202 may merely provide necessary information to the GES 204, packager 212, or the origin server 214, and one of these entities may insert appropriate markers or triggers into the relevant events. As yet another alternative, the marker insertion task may be divided between the content providers and one or more other entities, such as based on a prescribed division scheme (e.g., content providers insert certain types of markers, while other entities insert others).
Next, per step 312, the content is encoded and published. In one embodiment, the content is encoded into hypertext transfer protocol (HTTP) format for provision to mobile devices using e.g., HLS or Smooth Streaming as discussed above. As the content is encoded (step 312), the SCTE-35 or otherwise marked alternate program event is converted by the packager 212 to a redirection URL in the manifest or playlist for the content which is ultimately published and stored on the origin server 214 or edge cache 216. The client device 106 plays the content from the manifest, when the redirect URL is encountered, it points the client to the GES 204.
At step 314, the GES 204 publishes one or more URLs for the appropriate content that will replace the requested content at the marked event. The GES 204 may obtain the correct redirect URL from the content providers 202 or, alternatively, the packager 212 may provide the URLs of the main and alternate programs to the GES 204. The GES 204 uses the URLs to create the associated service list with the appropriate URLs. In this instance, when the client device 106 encounters the event, and requests a redirect URL the GES 204 may consult the service list to redirect the device to the appropriate content.
In another variant, if encryption is occurring, the arrival of the playback device 106 at an alternate program event (i.e., at the redirection URL) may force a key change or rotation. That is, if a key rotation event is forced, the device 106 will not be able to decrypt content until it has received an appropriate key. When the appropriate key is requested, the request is denied based on e.g., an evaluation of the requesting devices headend ID.
In one exemplary configuration, the MSO manages the keys, which are periodically rotated to inter alia, maintain their “freshness”. The client devices request and receive a new key at the periodic rotation event. The key change or rotation ensures that the devices receiving content have not been de-authorized or are otherwise rendered ineligible to receive the key(s) within the rotation period. In one embodiment, the key(s) is/are held at a key server within the network (and managed by the MSO). The key server may utilize digital rights management (DRM) or another type of IP-based encryption system. A key management system (KMS) of the type well known in the cryptographic arts may be utilized to distribute the keys. Key rotation may occur dependent or independent of a geographic location of the requesting device; i.e., the keys may be issued predicated on a validated association with a location, or alternatively the user (or device) is validated irrespective of a location. The alternative event/content service is again utilized to determine where a client is located, and what content the device should receive based on that location, as discussed elsewhere herein.
FIG. 4 illustrates another embodiment of the network architecture for delivery of geographically relevant content to an IP-enabled device according to the present invention. According to this embodiment, the pre-negotiated viewing rights of subscribers to the content of the content providers 202 are implemented at the GES 204 (rather than being implemented at the content providers 202, as discussed above with respect to FIGS. 2 and 3). In order to implement the negotiated rights, a more detailed or “verbose” data set is provided to the GES 204 from the content providers 202. In one embodiment, the information provided to the GES 204 from the content providers 202 includes a list of zip codes or other geographic identifiers referenced to an alternative programming content, as well as other information regarding a blackout or alternate programming event (such as when the event will occur, how long it will last, whether certain levels of subscribers may avoid a geographic restriction, descriptive matter relating to the alternate programming, etc.). Other information may be provided also, depending on the granularity of data available between the GES 204 and service provider 202.
The network 400 of FIG. 4 generally comprises a plurality of content providers 202 providing content and other web services. The enforcement of geographic limitations is performed by the GES 204 utilizing the information obtained from the content providers 202 and an authorization service 206. The GES 204 also manages content change-overs (i.e., provides alternative programming, such during a blacked-out event). The component portions of the network 400 include inter alia, a receiver/decoder entity 208, an encoder 210, and a packager 212, which cooperate to receive content, decode content, re-encode content, format the content for transmission to a client device 106 (including causing a playlist or manifest to be created), and provide the content to an origin server 214 (and eventually to an edge cache 216) for service to the client device 106.
The content in the illustrated embodiment contains a trigger which marks an event that is geographically restricted. In one implementation, the trigger comprises an SCTE-35 trigger, however other markers or indicators may be used with equal success. Each service variant is provided a different playlist (or manifest) containing triggers that indicate replacement content is to be inserted based on geographic restrictions associated to each service group.
The client device 106 requests content from the edge cache 216 or from the origin server 214. A request for content identifies the device 106 and/or the subscriber by providing e.g., the headend ID or other identifier assigned to the device from by the authorization server 206. Alternatively, the MAC address or other pre-assigned device or user-specific identifier may be utilized. The identification of the device and/or subscriber via the identifier ensures that the appropriate service variant is provided to the device 106.
In another embodiment, the device 106 may be identified based on its current physical location, such as by utilizing GPS or other location data as previously set forth herein. A temporary headend ID (or other identifier) may be assigned based on the GPS or other data, and renewed at each new request for content.
In the network 400 embodiment of FIG. 4, when the client device 106 reaches a redirect URL or other trigger indicating a redirect event, the device 106 contacts the GES 204 for a new URL for the alternate programming content. Rather than consulting a list of pre-designated alternative content provided by the content providers 202 (as discussed in the embodiment of FIG. 2), the GES 204 uses information obtained from the content providers 202 to determine which URL (i.e., the URL for which content) should be transmitted to the device 106.
FIG. 4a illustrates another exemplary embodiment of network architecture configured for delivery of geographically relevant content to an IP-enabled device, here using detailed scheduling information. As shown, the embodiment corresponds generally to that of FIG. 4 discussed above; however, in addition, an event scheduler of the content provider provides detailed information to the alternate event service. The authorization service may then only communicate to the alternate event service to obtain information associating a locator ID of the client devices to respective geographic areas. The content provider of this embodiment further comprises an encoder configured to mark alternative content events (such as via SCTE-35 triggers embedded in the content stream). The stream is then provided to the client devices; upon reaching a trigger or other marker of an alternate program event, alternate programming is requested from the alternate event server, and appropriate URLs are provided (as discussed above). The embodiment of FIG. 4a may be further configured to utilize so-called “sparse tracks” for HTTP Smooth Streaming in the transmission of content from the packager to the origin server, and to identify alternative events. Sparse tracks are generally utilized to provide on-the-fly advertisement insertion to a live stream. In the context of present embodiment, the sparse tracks may be adjusted to instead provide a trigger for alternate content events. Other mechanisms for enabling triggering may also be utilized consistent with the present invention.
FIG. 4b illustrates an exemplary configuration of the headend portion of the network architecture of FIG. 4a. 
FIG. 4c illustrates yet another exemplary embodiment of a network architecture configured for delivery of geographically relevant content to an IP-enabled device using detailed scheduling information. In contrast to that of FIG. 4a, this embodiment of the architecture obviates the authentication service in favor of a location service and entitlement service. The foregoing entities performing the functions of providing entitlements information to the alternate event service and associating geographic locations to client devices, as discussed above.
Referring now to FIG. 5, an exemplary method 500 for providing geographically relevant content to an IP-enabled device via a content distribution network, such as the exemplary network of FIG. 4 or 4a, is illustrated.
Per step 502 of the method 500, the authorization server 206 of the exemplary network 400 assigns a headend ID or other device and/or subscriber identifier to a “virtual IRD” of the client device 106. Alternatively, as noted above, the device and/or subscriber identifier may be a pre-assigned identifier such as e.g., MAC address. The identification information is used to register a certain set of customers in a given geographic area (see step 504). The listing is provided from the authorization server 206 to the GES 204.
Each device 106 is assigned a headend ID (or other identifier) upon registration of the device to the network (step 504). Information including the headend ID (or other identifier) and other relevant information about the device and/or user is also used to register a certain customers to a given geographic area. In one embodiment, the registration process is similar to that discussed in previously incorporated U.S. patent application Ser. No. 13/403,802 entitled “APPARATUS AND METHODS FOR PROVIDING CONTENT TO AN IP-ENABLED DEVICE IN A CONTENT DISTRIBUTION NETWORK”, and generally includes creation of a login identity (such as a user name) and password combination. When a new device attempts to access content from the network by entering the login information, the identity assignment and registration process are performed. If the subscriber/device has previously registered, the user may simply login to the content distribution network services, the system recognizes the device and acknowledge its previously assigned headend ID, or otherwise provide sufficient authentication information. It will be appreciated that while the exemplary embodiments described herein discuss a “user” as logging in or registering with the various entities, the invention contemplates device-based logins/authentication as well, or combinations of the foregoing (e.g., the device being authenticated, such as by MAC. IP address, or other information, and the user of the device having to authenticate themselves (such as by user name/password, etc.).
As noted above, the headend ID (or other device or user specific identifiers) are provided from the authorization service 206 to the GES 204. The GES 204 creates a listing (or association table) of geographic areas (such as by zip code, area code, etc.), and associates each to the headend ID (or other identifier).
Next, per step 506, the content providers 202 provide program data or information to the GES 204. In one embodiment, the program information identifies: (i) when a blackout or alternate programming event is to occur, (ii) alternate programming options for the blackout or alternate programming event, and (iii) the geographic areas and/or subscribers or subscriber types which are/are not permitted access to particular content.
At step 508, the GES 204 uses this information and the previously assembled association table to identify URLs for the appropriate main and alternate programs during an alternate programming event; the GES 204 cross-references a list of identifiers (such as headend IDs) to appropriate services based on negotiated viewing rights. Each available service is associated to a relevant geographic region (listed by e.g., zip code, area code, etc.) via the assigned identifiers. The cross-referenced list is utilized to coordinate the assigned identifiers to specific services.
As discussed above, the content provider may also provide an association of virtual IRDs to particular programming, such as via a list or other data structure. The association list may be provided periodically, when an event notification is needed (e.g., based on a client action or request), or under other conditions as required. In one embodiment, the herein-discussed web services interface is utilized to publish the list, although other mechanisms may be used with equal success.
Next per step 510, the content is marked with one or more markers or triggers (such as e.g., the previously discussed SCTE-35 markers), which indicate alternate program events. The content provider 202 may mark the events or, alternatively, the GES 204 or packager 212 may mark the events using information received from the content provider 202.
At step 512, the content is encoded and published. In one embodiment, the content is encoded into HTTP format for provision to mobile devices 106 using e.g., HLS or Smooth Streaming as discussed above. Encoding the content includes conversion of the SCTE-35 or otherwise marked alternate program event by the packager 212 to a redirection URL. The redirection URL is listed in the manifest or playlist for the content, which is ultimately published and stored on the origin server 214 and/or edge cache 216. During playback of the content, when the client device 106 encounters a redirect URL, the device 106 is referenced to the GES 204. The GES 204 provides the appropriate URL upon the redirection.
Next, at step 514, the GES 204 publishes URLs for the appropriate content to replace the requested content at the marked event.
In yet another variant, the arrival of the playback device 106 at an alternate program event (i.e., at the redirection URL) may force a key rotation. As discussed above, the key rotation event causes the device 106 to no longer be able to decrypt content (until it has received an appropriate key) and thereby assists in a geographic content restriction. In other words, when the appropriate key is requested by the device 106 after a key change event, access is denied based on e.g., an evaluation of the requesting devices headend ID and instead the device 106 is referred to the alternate program URL.
In yet another embodiment, certain ones of the content providers 202 (or other entities) are tasked with determining alternative programming, and generating the content list matching geographic areas to content (as discussed in FIGS. 2 and 3 above). At the same time, other content providers 202 within the same network provide the necessary information for enabling the GES 204 to perform the geographic area to content match ups (as discussed in FIGS. 4 and 5). Accordingly, the GES 204 is in one embodiment configured to act in place of the content providers 202 for determining appropriate content when necessary, but is also configured to merely use information provided by the content providers 202 when necessary. The necessity of the GES 204 to perform one or the other function is determined by negotiated rights between the managed network 200 or 400 and the content providers 202.
User Tuning Methods—
FIG. 6 is a logical flow diagram illustrating an exemplary embodiment of a method 600 for ensuring an initial tune request for content yields geographically relevant content.
Per step 602 of the method, the client device 106 requests content which is geographically inappropriate for the requesting device.
When the client device 106 receives a channel listing, the list indicates which programs or channels are blacked-out and/or have alternative programming provided. The client selects a program from the channel listing, and if the program is a among the programming or channels that is potentially blacked-out or for which alternative programming is to be provided, it is determined whether the content is appropriate to the geographic area associated to the requesting device. This determination is based in one implementation on the headend ID (or other identifier), which is provided in the request to the GES 204. It is also noted that the identifier may be based on the current location of the device or a location to which the device or subscriber is registered, or yet other data.
At step 604, the GES 204 performs a search of the association table to match the subscriber or device specific identifier to a geographic region and determine whether the requested program is in the identified region. The system next identifies and returns the URL for the appropriate program (which may be the requested program or alternative programming) to the CPE 106 at step 606.
Lastly, per step 608, the client device 106 requests the appropriate program according to the URL delivered thereto. The client will then use this URL to begin watching the program.
Referring now to FIG. 7, an exemplary embodiment of a method 700 for ensuring an in-band transition event yields geographically relevant content is shown and described.
Per step 702, a program is in progress when an event marker is reached (step 704). At this point in the manifest, a redirect URL is given (step 706). The redirect URL causes the CPE 106 to make a new request to the GES 204 (step 708).
At step 710, the GES 204 determines appropriate content for the geographic area of the CPE 106 based on the headend ID or other identifier provided to the GES 204 in the request for content. As noted above, the identifier may be based on the current location of the device or a registered location or subscriber account. The system next identifies and returns the URL for the appropriate program (which may be the requested program or alternative programming) to the CPE 106 at step 712. Per step 714, the client device 106 requests the appropriate program according to the URL delivered thereto. The client will then use this URL to begin streaming and watching the program.
Geographic Enforcement Service (GES) Apparatus—
FIG. 8 is a functional block diagram illustrating one exemplary embodiment of a geographic enforcement service (GES) entity 204 which ensures delivery of geographically relevant content to a plurality of IP-enabled devices in a content delivery network.
As shown, the GES 204 generally comprises an interface 802 for communication to one or more content providers 202, an authorization server 206, and a packager 212. In a first embodiment, the GES 204 receives a list of device or subscriber identifiers correlated to appropriate programming from the content providers 202 (see discussion of FIGS. 2 and 3 above) for storage in a storage device (e.g., HDD or memory) 806. In another embodiment, the GES 204 receives information enabling the GES 204 itself to correlate programming to devices/subscribers (see discussion of FIGS. 4 and 5 above) at e.g. the cross-reference process 812 running on the processor 804 of the GES 204.
Additionally, the exemplary configuration of the GES 204 includes a registration process 810 and a publisher process 814. The registration process 810 facilitates registration of devices 106 from the authorization server 206. The publisher process 814 publishes one or more URLs for appropriate programming to requesting devices 106 when these devices reach a redirect URL in the playback of requested content. Interface 808 enables communication between the GES 204 and the client devices 106.
The GES 204 is in the illustrated embodiment designed to be highly scalable, and can service requests to all CPE 106 in communication therewith. That is to say, it is able to handle large bursts of (substantially contemporaneous) requests. In one implementation, a load balancer is utilized to balance requests across multiple servers which are distributed across the geographic footprint. In addition, multiple servers may be provided per market location, in order to accommodate large incoming requests.
Although not illustrated, the GES 204 may further comprise a look-ahead feature. The look-ahead feature enables the GES 204 to review the playlists or manifests of content currently viewed on registered CPE 106, and determine a priori which streams will require alternative programming, and cue the appropriate programming. According to this model, the GES 204 once it has determined the upcoming change-over events, staggers or otherwise randomizes delivery of the alternate content URLs. In this manner, the overall impact or burden to the GES 204 at any given alternate programming event will be spread across a larger time period, as opposed to occurring simultaneously. In one embodiment, this may be accomplished using an interface to provide alternate event scheduling information in advance of the actual event. In one variant, the interface may comprise XML via HTTP (or HTTP-S) to a hosted RESTful interface (scheduling proxy).
It will be recognized that while certain aspects of the invention are described in terms of a specific sequence of steps of a method, these descriptions are only illustrative of the broader methods of the invention, and may be modified as required by the particular application. Certain steps may be rendered unnecessary or optional under certain circumstances. Additionally, certain steps or functionality may be added to the disclosed embodiments, or the order of performance of two or more steps permuted. All such variations are considered to be encompassed within the invention disclosed and claimed herein.
While the above detailed description has shown, described, and pointed out novel features of the invention as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the device or process illustrated may be made by those skilled in the art without departing from the invention. The foregoing description is of the best mode presently contemplated of carrying out the invention. This description is in no way meant to be limiting, but rather should be taken as illustrative of the general principles of the invention. The scope of the invention should be determined with reference to the claims.

## Claims

1. A method of delivering a plurality of content that is geographically relevant to a plurality of client devices in a content distribution network, said method comprising:
receiving said plurality of content, individual ones of said plurality of content having a geographic relevance associated therewith;
receiving a request for said individual ones of said plurality of content from at least one of said plurality of client devices;
determining that at least a portion of said requested individual ones of said plurality of content is not permitted in a first location associated to said at least one of said plurality of client devices;
based at least in part on said determination, identifying a redirection link, said redirection link being related to said first location of said at least one of said plurality client device;
sending said redirection link to said at least one of said plurality of client devices; and
monitoring a position of said at least one of said plurality of client devices to determine whether said at least one of said plurality of client devices becomes (i) disassociated from said first location and (ii) associated with a second different location.

2. The method of claim 1, further comprising:
assigning one of a plurality of locations to respective ones of said plurality of client devices accessing said network, said first location being one of said plurality of locations and being at least temporarily assigned to said at least one of said plurality of client devices; and
associating individual ones of said plurality of locations to respective individual ones of a plurality of geographic regions.

3. An apparatus for delivering a plurality of digital content that is geographically relevant to a plurality of client devices in a digital content distribution network, said apparatus comprising:
a first interface configured to communicate data with a network;
processor apparatus in data communication with the first interface; and
a storage apparatus in data communication with said processor apparatus, said storage apparatus configured to store at least one computer program, said at least one computer program comprising a plurality of instructions which are configured to, when executed by said processor apparatus, cause said apparatus to:
receive said plurality of digital content, individual ones of said plurality of digital content having a geographic relevance associated therewith;
receive a request for said individual ones of said plurality of digital content, said request issued from at least one of said plurality of client devices;
determine that at least a portion of said requested individual ones of said plurality of digital content is not permitted in a location associated to said at least one of said plurality of client devices, said determination comprising consult of a list maintained in a digital data structure;
based on said determination, identify a redirection link, said redirection link being related to said location of said at least one of said plurality client device; and
send said redirection link to said at least one of said plurality of client devices;

wherein said list comprises:
data indicative of a plurality of identifiers, each of said plurality of identifiers associated with one or more of said individual ones of said plurality of client devices;
data indicative of a plurality of permitted locations, each of said plurality of permitted locations associated with one or more of said individual ones of said plurality of client devices; and
data indicative of a plurality of triggers, each of said plurality of triggers based at least in part on at least one of said plurality of identifiers.

4. The apparatus of claim 3, wherein said plurality of instructions are further configured to, when executed:
assign one of a plurality of locations to respective ones of said plurality of client devices accessing said network; and
associate, via a data structure, individual ones of said plurality of locations to respective individual ones of a plurality of geographic regions.

5. A method of delivering geographically relevant digital content to a client device in a digital content distribution network, said method comprising:
receiving a request for a plurality of digital content from said client device, individual ones of said plurality of digital content having data indicative of a marker associated therewith;
determining whether said requested said plurality of digital content are permitted in a first location associated to said client device;
based at least in part on said marker and said first location, identifying a redirection link to provide appropriate content associated with said marker, said redirection link being related to said first location associated to said client device;
sending said redirection link to said client device;
monitoring a position of said client device to determine whether said client device moves from said first location to a second location, said second location different from said first location;
based at least on a determination that said client device has moved from said first location to said second location, (i) disassociating said first location from said client device and (ii) associating said second location with said client device; and
determining whether said requested plurality of digital content are permitted at said second location.

6. The method of claim 5, further comprising using a list to determine viewership rights of said client device, said list being maintained in a digital data structure.

7. The method of claim 5, wherein one or more of said plurality of digital content comprises relevance data associated therewith, said relevance data comprising least one of: (i) data indicative of a geographic relevance, or (ii) data indicative of a temporal relevance.

8. The method claim 7, further comprising monitoring said individual ones of plurality of digital content to determine whether a change to said associated relevance data occurs.

9. The method of claim 8, further comprising:
determining a change to said associated relevance data has occurred, said change comprising at least one of: (i) change to said geographic relevance, or (ii) a change to said temporal relevance; and
based at least on said determination of said change, consulting a list to determine alternate digital content to said client device based at least on said first location associated to said client device, said list being maintained in a digital data structure.

10. The method of claim 5, further comprising, in response to a determination that said requested individual ones of said plurality of content are not permitted at said second location, providing said client device alternate digital content, said alternate digital content being permitted at said second location.

11. The method of claim 10, wherein said act of providing alternate digital content comprises consulting a list to determine, based at least on said second location, said alternate digital content.

12. The method of claim 5, based at least in part on said act of receiving said request for said plurality of content from said client device, registering said client device via assigning an identifier to said client device.

13. The method of claim 1, further comprising, based at least in part on said act of monitoring, determining that said at least one client device is (i) disassociated from said first location and (ii) associated with said second different location.

14. The method of claim 13, further comprising:
assigning a first temporary digital identifier to said at least one of said plurality of client devices based at least in part on said association with said first location, and
assigning a second temporary digital identifier to said at least one of said plurality of client devices based at least in part on said disassociation from said first location and said association with said second different location, said second temporary digital identifier replacing said first temporary digital identifier.

15. The method of claim 13, further comprising:
receiving a subsequent request for said individual ones of said plurality of content from said at least one of said plurality of client devices;
determining that said requested individual ones of said plurality of content are permitted in said second location associated to said at least one of said plurality of client devices; and
based at least in part on said determination of permission in said second location, providing said requesting client device access to said requested individual ones of said plurality of content.

16. The method of claim 1, wherein said acts of receiving data indicative of said first location and monitoring of said at least one of said plurality of client devices each at least in part comprise receiving location data for said at least one of said plurality of client devices generated at least in part by a global positioning system (GPS).

17. The method of claim 1, wherein said redirection link provides access to alternate content which is permitted at said first location.

18. A method of delivering geographically relevant digital content to one or more of plurality of computerized client devices in a digital content distribution network, said method comprising:
receiving a first request for digital content from one of said plurality of computerized client devices, said digital content having a first relevance data associated therewith;
determining, based at least on said first relevance data, that said digital content is not permitted at a location associated with said one of said plurality of computerized client devices;
based at least on said determination, identifying a redirection link to provide alternate digital content, said alternate digital content having a second relevance data associated therewith, said second relevance data indicating that said alternate digital content is permitted at said location;
transmitting said redirection link to said one of said plurality of client devices; and
monitoring said digital content to determine whether a change to said first relevance data occurs.

19. The method of claim 18, wherein said first digital marker comprises at least one of: (i) data indicative of a geographic relevance of said digital content, and (ii) data indicative of a temporal relevance of said digital content.

20. The method of claim 19, further comprising determining a change to said first relevance data has occurred, said change comprising at least one of: (i) a change to said data indicative of said geographic relevance, or (ii) a change to said data indicative of said temporal relevance, said change to said first relevance data indicating said requested content is permitted at said location.

21. The method of claim 20, further comprising:
receiving a second request for said digital content from one or more of said one of said plurality of client devices or another one of said plurality of client devices, said digital content having said changed first relevance data associated therewith, said another one of said plurality of client devices associated with said location; and
based at least in part on said changed first relevance data and said second request, transmitting a link to provide said digital content to said one or more of said one of said plurality of client devices or said another one of said plurality of client devices.

22. The method of claim 18, wherein:
said redirection link comprises a first uniform resource locator (URL) for accessing said alternate digital content, and
said link comprises a second URL for accessing said digital content.