Patent Document

BACKGROUND 
   As the personal computer (PC) moves to become the center of the digital home, it must simultaneously handle requests from an ever-increasing number of devices wishing to access media content (music, pictures, videos, TV, etc.) stored on the PC. 
   For example, a user can currently employ a PC as an entertainment server to deliver media and other content over a network to client devices such as desktop PCs, notebooks, portable computers, cellular telephones, other wireless communications devices, personal digital assistants (PDA), gaming consoles, IP set-top boxes, handheld PCs, and so on. Content capable of being delivered includes pictures, audio content, audio/video (AV) content, and computer readable programs which may be introduced to the entertainment server on portable storage media, such as CDs or DVDs, or via a tuner receiving the content from remote sources, such as the Internet, a cable connection, or a satellite feed. 
   Software, such as the WINDOWS XP® Media Center Edition operating system marketed by the Microsoft Corporation of Redmond, Wash., has greatly reduced the effort and cost required to transform normal home PCs into hosts capable of delivering such content. At some point, however, the resources required to deliver content to the various devices requesting it may exceed the resources available on the PC. When this happens, unexpected and/or undesirable behavior may result in disruptions experienced on the PC and/or the device accessing the content from the PC. 
   Thus, there exists a need to enable a PC to function in a multi-user environment and to deliver content to a multitude of requesting devices without exceeding the resources available on the PC. 
   SUMMARY 
   A media experience policy engine includes three components: an information manager, a policy evaluator, and an enforcement module. The information manager collects information regarding the current state of a media delivery system, such as usage of a CPU, memory, hard disk, (I/O) interface, and a network. This collected data is then verified by the policy evaluator to see if resource contention is, or is close to, occurring. If so, existing or potential conflicts are dealt with by the enforcement module, which applies corrections, such as, for example, limiting the access of later chronologic users, or degrading the user experience of all users, in accordance with a desired policy in order to vitiate the resource contention and maintain a user experience consistent with the desired policy. 
   This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items. 
       FIG. 1  illustrates an exemplary home environment including an entertainment server, a home network device, and a home television. 
       FIG. 2  illustrates a system of multiple entertainment servers in communication with multiple home network devices using a media experience policy engine. 
       FIG. 3  illustrates a block diagram of a media experience policy engine being used in conjunction with a plurality of entertainment servers communicatively coupled to a plurality of home network devices. 
       FIG. 4  is a flow diagram illustrating a method for continuously monitoring network resources and dynamically resolving resource contention issues. 
       FIG. 5  is a flow diagram illustrating a methodological implementation of a policy evaluator to evaluate current network resource characteristics against a desired policy. 
       FIG. 6  is a flow diagram illustrating a methodological implementation of an enforcement module to institute changes to network resources in order to bring the network resources into compliance with a desired policy. 
   

   DETAILED DESCRIPTION 
   Home Environment 
     FIG. 1  shows an exemplary home environment  100  including a bedroom  102  and a living room  104 . Situated throughout the home environment  100  are a plurality of monitors, such as a main TV  106 , a secondary TV  108 , and a VGA monitor  110 . Content may be supplied to each of the monitors  106 ,  108 ,  110  over a home network from an entertainment server  112  situated in the living room  104 . In one implementation, the entertainment server  112  is a conventional personal computer (PC) configured to run a multimedia software package like the Windows® XP Media Center™ edition operating system marketed by the Microsoft Corporation. In such a configuration, the entertainment server  112  is able to integrate full computing functionality with a complete home entertainment system into a single PC. For instance, a user can watch TV in one graphical window of one of the monitors  106 ,  108 ,  110  while sending email or working on a spreadsheet in another graphical window on the same monitor. In addition, the entertainment system may also include other features, such as:
         A Personal Video Recorder (PVR) to capture live TV shows for future viewing or to record the future broadcast of a single program or series.   DVD playback.   An integrated view of the user&#39;s recorded content, such as TV shows, songs, pictures, and home videos.   A 14-day EPG (Electronic Program Guide).       
   In addition to being a conventional PC, the entertainment server  112  could also comprise a variety of other devices capable of rendering a media component including, for example, a notebook or portable computer, a tablet PC, a workstation, a mainframe computer, a server, an Internet appliance, combinations thereof, and so on. It will also be understood, that the entertainment server  112  could be an entertainment device, such as a set-top box, capable of delivering media content to a computer where it may be streamed, or the entertainment device itself could stream the media content. 
   With the entertainment server  112 , a user can watch and control a live stream of television or audio content received, for example, via cable  114 , satellite  116 , an antenna (not shown for the sake of graphic clarity), and/or a network such as the Internet  118 . This capability is enabled by one or more tuners residing in the entertainment server  112 . It will also be understood, however, that the one or more tuners may be located remote from the entertainment server  112  as well. In both cases, the user may choose a tuner to fit any particular preferences. For example, a user wishing to receive both standard definition (SD) and high definition (HD) content should employ a tuner configured for both types of contents. Alternately, the user could employ an SD tuner for SD content, and an HD tuner for HD content. 
   The entertainment server  112  may also enable multi-channel output for speakers (not shown for the sake of graphic clarity). This may be accomplished through the use of digital interconnect outputs, such as Sony-Philips Digital Interface Format (SPDIF) or Toslink enabling the delivery of Dolby Digital, Digital theater Sound (DTS), or Pulse Code Modulation (PCM) surround decoding. 
   Additionally, the entertainment server  112  may include a media experience policy engine  120  configured to allow a user to control the behavior of the entertainment server  112  under various load conditions. The media experience policy engine  120  is configured to enable a user to monitor actual resource utilization of the entertainment server  112  and respond appropriately in high load situations where resource contention is occurring or is about to occur. In this way the media experience policy engine  120  can be used to customize resource management performed by the entertainment server  112  and avoid deleterious resource contention which might otherwise degrade a user experience to an unpredictable, and unacceptable quality level. The media experience policy engine  120 , and methods involving its use, will be described in more detail below in conjunction with  FIGS. 2-6 . 
   Since the entertainment server  112  may be a full function computer running an operating system, the user may also have the option of running standard computer programs (word processing, spreadsheets, etc.), sending and receiving emails, browsing the Internet, or performing other common functions. 
   The home environment  100  also may include a home network device  122  placed in communication with the entertainment server  112  through a network  124 . Home network devices  122  may include Media Center Extender devices marketed by the Microsoft Corporation, Windows® Media Connect devices, game consoles, such as the Xbox game console marketed by the Microsoft Corporation, and devices which enable the entertainment server  112  to stream audio and/or video content to a monitor  106 ,  108 ,  110  or audio system. The home network device  122  may also be implemented as any of a variety of conventional computing devices, including, for example, a desktop PC, a notebook or portable computer, a workstation, a mainframe computer, an Internet appliance, a gaming console, a handheld PC, a cellular telephone or other wireless communications device, a personal digital assistant (PDA), a set-top box, a television, an audio tuner, combinations thereof, and so on. 
   The network  124  may comprise a wired, and/or wireless network, or any other electronic coupling means, including the Internet. It will be understood that the network  124  may enable communication between the home network device  122  and the entertainment server  112  through packet-based communication protocols, such as transmission control protocol (TCP), Internet protocol (IP), real time transport protocol (RTP), and real time transport control protocol (RTCP). The home network device  122  may also be coupled to the secondary TV  108  through wireless means or conventional cables. 
   The home network device  122  may be configured to receive a user experience stream (i.e. the system/application user interface, which may include graphics, buttons, controls and text) as well as a compressed, digital audio/video stream from the entertainment server  112 . The user experience stream may be delivered in a variety of ways, including, for example, standard remote desktop protocol (RDP), graphics device interface (GDI), or hyper text markup language (HTML). The digital audio/video stream may comprise video IP, SD, and HD content, including video, audio and image files, decoded on the home network device  122  and then “mixed” with the user experience stream for output on the secondary TV  108 . In one exemplary implementation, media content is delivered to the home network device  122  in the MPEG 2 format. 
   In  FIG. 1 , only a single home network device  122  is shown. It will be understood, however, that a plurality of home network devices  122  and corresponding displays may be dispersed throughout the home environment  100 , communicatively coupled to the entertainment server  112 . It will also be understood that in addition to the home network device  122  and the monitors  106 ,  108 ,  110 , the entertainment server  112  may be communicatively coupled to other output peripheral devices, including components such as speakers and a printer (not shown for the sake of graphic clarity). 
   System with a Media Experience Policy Engine 
     FIG. 2  shows an exemplary architecture  200  suitable for delivering media content to a plurality of home network devices  122  from a plurality of entertainment servers  112  over network  124 . As shown in  FIG. 2 , the media experience policy engine  120  may reside on one, several, or all of the plurality of entertainment servers  112 . Moreover, a client side media experience policy engine (MEPE)  202  may reside on one, several, or all of the plurality of home network devices  122 . In addition, a stand alone media experience policy engine  204  may also reside on another device, for example, a special purpose device or a server in communication with the network  124 . 
   In perhaps its simplest implementation, the media experience policy engine  120  may be run on a single entertainment server  112  serving two or more users. Typically, this might involve one user at the entertainment server  112  itself and one or more users operating home network devices  122 . Other user configurations are possible, however, including multiple users working on the same entertainment server  112  through the use of software that enables two or more keyboards, mice, monitors, etc., to be plugged into the entertainment server  112 . In scenarios such as this, where a single entertainment server  112  is being utilized, it is also possible to use a client side MEPE  202  along with, or to the exclusion of, the media experience policy engine  120  on the single entertainment server  112 . 
   In more complex multi-user implementations, one or more of the entertainment servers  112  or home network devices  122  may share one or more instances of the media experience policy engine  120 ,  202  residing on one of the entertainment servers  112  or home network devices  122 . Alternately, the one or more entertainment servers  112  or home network devices  122  may share the stand alone media experience policy engine  204  in addition to the media experience policy engines  120 ,  202  residing on one of the entertainment servers  112  or home network devices  122 . 
   In addition, the one or more entertainment servers  112  and home network devices  122  may also use a discrete instance of the media experience policy engine (including a media experience policy engine  120 , the stand alone media experience policy engine  204 , and a client side MEPE  202 ), which then may coordinate with the media experience policy engines  120 ,  202 ,  204  residing on one or more of the other devices  112 ,  122 . 
   In yet another implementation, a single media experience policy engine  120 ,  202 ,  204  may be used to service all of the devices coupled to network  124 . 
   It will be understood that the client side MEPE  202 , if present, may be used to gather statistical and other information regarding the resources of the network  124  and of home network device  122  on which the client side MEPE  202  resides. Alternately, this information could be collected by another application on the home network device  122  or on one of the other home network devices  122 , or entertainment servers  112 . 
   Throughout this document, when reference is made to the media experience policy engine  120 , it will be understood that this reference may also include the client side MEPE  202  and the stand alone media experience policy engine  204 . 
   Entertainment Server and Home Network Device with a Media Experience Policy Engine 
     FIG. 3  shows an exemplary architecture  300  suitable for delivering media content to one or more home network devices  122  from one or more entertainment servers  112 . In  FIG. 3 , the media experience policy engine  120  is illustrated as residing on the entertainment server(s)  112 . As noted above, however, it will be understood that the media experience policy engine  120  need not be hosted on the entertainment server(s)  112 . For example, the media experience policy engine  120  could also be hosted on a set top box, or any other electronic device or storage medium communicatively coupled to a path along which media content is conveyed on its way from a source (i.e. Internet  118 , cable  114 , satellite  116 , antennae, etc.) to the home network device(s)  122 . Moreover, it will also be understood that the media experience policy engine  120  may deliver functional program code to devices, such as the home network devices  122 , with which it is coupled over the network  124 . This program code can be configured to assist the media experience policy engine  120  to carry out its functionality. 
   As discussed above, the entertainment server(s)  112  may be implemented as any of a variety of conventional computing devices, including, for example, a server, a desktop PC, a notebook or portable computer, a workstation, a mainframe computer, an Internet appliance, a set top box, combinations thereof, and so on, that are configurable to deliver stored and/or live media content to a client device such as the home network device(s)  122 . 
   The entertainment server(s)  112  may include one or more tuners  302 , one or more processors  304 , a content storage  306 , memory  308 , and one or more network interfaces  310 . The tuner(s)  302  may be configured to receive media content via sources such as cable  114 , satellite  116 , an antenna, or the Internet  118 . The media content may be received in digital form, or it may be received in analog form and converted to digital form at any of the one or more tuners  302  or by the one or more microprocessors  304  residing on the entertainment server(s)  112 . Media content either processed and/or received (from another source) may be stored in the content storage  306 .  FIG. 3  shows the content storage  306  as being separate from memory  308 . It will be understood, however, that content storage  306  may also be part of memory  308 . 
   The network interface(s)  310  may enable the entertainment server(s)  112  to send and receive commands and media content among a multitude of devices communicatively coupled to the network  124 . For example, in the event both the entertainment server(s)  112  and the home network device(s)  122  are connected to the network  124 , the network interface  310  may be used to deliver content such as live HD television content from the entertainment server(s)  112  over the network  124  to the home network device(s)  122  in real-time with media transport functionality (i.e. the home network device(s)  122  may render the media content and the user may be afforded functions such as pause, play, etc). In addition, the entertainment server(s)  112  may deliver media content to each other over the network  124 . 
   Requests from the home network device(s)  122  and/or other entertainment server(s)  112  for media content available on, or through, one of the entertainment servers  112  may also be routed from the home network device(s)  122  and/or other entertainment server(s)  112  to the entertainment server  112  via network  124 . In general, it will be understood that the network  124  is intended to represent any of a variety of conventional network topologies and types (including optical, wired and/or wireless networks), employing any of a variety of conventional network protocols (including public and/or proprietary protocols). As discussed above, network  124  may include, for example, a home network, a corporate network, the Internet, or IEEE 1394, as well as possibly at least portions of one or more local area networks (LANs) and/or wide area networks (WANs). 
   The entertainment server(s)  112  can make any of a variety of data or content available for delivery to the home network device(s)  122  and/or other entertainment server(s)  112 , including content such as audio, video, text, images, animation, and the like. In one implementation, this content may be streamed from the entertainment server(s)  112  to the home network device(s)  122  and/or other entertainment server(s)  112 . The terms “streamed” or “streaming” are used to indicate that the data is provided over the network  124  to the home network device(s)  122  and or other entertainment server(s)  112  and that playback of the content can begin prior to the content being delivered in its entirety. The content may be publicly available or alternatively restricted (e.g., restricted to only certain users, available only if an appropriate fee is paid, restricted to users having access to a particular network, etc.). Additionally, the content may be “on-demand” (e.g., pre-recorded, stored content of a known size) or alternatively it may include a live “broadcast” (e.g., having no known size, such as a digital representation of a concert being captured as the concert is performed and made available for streaming shortly after capture). 
   Memory  308  stores programs executed on the processor(s)  304  and data generated during their execution. Memory  308  may include volatile media, non-volatile media, removable media, and non-removable media. It will be understood that volatile memory may include computer-readable media such as random access memory (RAM), and non volatile memory may include read only memory (ROM). A basic input/output system (BIOS), containing the basic routines that help to transfer information between elements within the entertainment server(s)  112 , such as during start-up, may also be stored in ROM. RAM typically contains data and/or program modules that are immediately accessible to and/or presently operated on by the one or more processors  304 . 
   The entertainment server(s)  112  may also include other removable/non-removable, volatile/non-volatile computer storage media such as a hard disk drive for reading from and writing to a non-removable, non-volatile magnetic media, a magnetic disk drive for reading from and writing to a removable, non-volatile magnetic disk (e.g., a “floppy disk”), and an optical disk drive for reading from and/or writing to a removable, non-volatile optical disk such as a CD-ROM, DVD-ROM, or other optical media. The hard disk drive, magnetic disk drive, and optical disk drive may be each connected to a system bus (discussed more fully below) by one or more data media interfaces. Alternatively, the hard disk drive, magnetic disk drive, and optical disk drive may be connected to the system bus by one or more interfaces. 
   The disk drives and their associated computer-readable media provide non-volatile storage of computer readable instructions, data structures, program modules, and other data for the entertainment server(s)  112 . In addition to including a hard disk, a removable magnetic disk, and a removable optical disk, as discussed above, the memory  308  may also include other types of computer-readable media, which may store data that is accessible by a computer, like magnetic cassettes or other magnetic storage devices, flash memory cards, CD-ROM, digital versatile disks (DVD) or other optical storage, random access memories (RAM), read only memories (ROM), electrically erasable programmable read-only memory (EEPROM), and the like. 
   Any number of program modules may be stored on the memory  308  including, by way of example, an operating system, one or more application programs, other program modules, and program data. One such application could be the media experience policy engine  120 , which includes an information manager  312 , a policy evaluator  314 , and an enforcement module  316 . The media experience policy engine  120  may be executed on processor(s)  304 , and can enable a user to monitor actual resource utilization of the entertainment server(s)  112  and the network  124  and respond appropriately in high load situations where deleterious resource contention is occurring or is about to occur. In addition to being implemented, for example, as a software module stored in memory  308 , the media experience policy engine  120  may also reside, for example, in firmware. Moreover, even though the information manager  312 , policy evaluator  314 , and enforcement module  316  are shown in  FIG. 3  as residing inside the media experience policy engine  120 , any or all of these elements may exist separate and as stand alone applications. More discussion of the nature and function of the media experience policy engine  120  will be given below. 
   The entertainment server(s)  112  may also include a system bus (not shown for the sake of graphic clarity) to communicatively couple the one or more tuners  302 , the one or more processors  304 , the network interface  310 , and the memory  308  to one another. The system bus may include one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. 
   A user may enter commands and information into the entertainment server(s)  112  via input devices such as a keyboard, pointing device (e.g., a “mouse”), microphone, joystick, game pad, satellite dish, serial port, scanner, and/or the like. These and other input devices may be connected to the one or more processors  304  via input/output (I/O) interfaces that are coupled to the system bus. Additionally, input devices may also be connected by other interface and bus structures, such as a parallel port, game port, universal serial bus (USB) or any other connection included in the network interface  310 . 
   In a networked environment, program modules depicted and discussed above in conjunction with the entertainment server(s)  112  or portions thereof, may be stored in a remote memory storage device. By way of example, remote application programs may reside on a memory device of a remote computer communicatively coupled to network  124 . For purposes of illustration, application programs and other executable program components, such as the operating system and the media experience policy engine  120 , may reside at various times in different storage components of the entertainment server(s)  112 , or of a remote computer, and may be executed by one of the at least one processors  304  of the entertainment server(s)  112  or of the remote computer. 
   The exemplary home network device(s)  122  may include one or more processors  318 , and a memory  320 . Memory  320  may include one or more applications  322  that consume or use media content received from sources such as the entertainment server  112 . Memory  320  may also contain a client side MEPE  202  which may be used in conjunction with, or to the exclusion of, the media experience policy engine  120  in the entertainment server(s)  112 . Similar to the experience policy engine  120  in the entertainment server(s)  112 , the client side MEPE may also include an information manager, policy evaluator and enforcement module (not shown for the sake of graphic clarity). In addition to being implemented as a software module stored in memory  308 , the client side MEPE  202  may also reside, for example, in firmware. 
   Media Experience Policy Engine Functionality 
   In operation, users may request media content from one or more entertainment servers  112  using home networking device(s)  122  or other entertainment server(s)  112  or devices coupled to the host entertainment server(s)  112  over network  124 . In addition, as noted above, multiple users may work simultaneously on the same entertainment server  112  through the use of software that enables multiple keyboards, mice, monitors, etc. to be plugged into the entertainment server  112 . 
   The requests for media content may take many forms, including requests to view streamed HD or SD content from a live source (such as Internet  118 , cable  114 , antennae, or satellite  116 ), receive audio content saved in content storage  306 , or access and work in an application saved in memory  308 . As more users make requests for media content from the one or more entertainment servers  112 , or as the existing users&#39; requests become greater and require more processing power and network capacity, a danger exists that the requests may outstrip the available resources of the one or more entertainment servers  112  and the network  124 . For example, if the network  124  only has enough capacity to stream one channel of HD content to a home network device  122 , then if two channels are requested, the network  124  will be overloaded. When this occurs, unexpected and undesireable behavior can result in disruptions encountered at the entertainment server(s)  112 , network  124 , and home network device(s) including arbitrary degradation of user experience, or arbitrary exclusion of one or more users from receiving content from the entertainment server(s)  112 . 
   The media experience policy engine  120 , client side MEPE  202 , and stand alone media experience policy engine  204  exist to avert such unexpected and undesirable behavior which may result in disruption of a user experience by adaptively managing the resources of the one or more servers  112  and the network  124  according to a desired policy in order to avoid deleterious resource contention. As will be discussed in more detail below, desired policies direct how certain user experiences should be maintained in the face of resource contention. 
   Information Manager 
   While the one or more of the entertainment servers  112  are delivering media content to users, the information manager  312  in the media experience policy engine  120  actively monitors actual resource utilization in the exemplary architecture  300 . The resources monitored by the information manager  312  may include, for example, CPU usage, memory usage, (I/O) interface usage and hard disk usage, for the one or more entertainment servers  112  as well as the network devices  122  from which users are making requests for media content. In addition, the usage of the network  124  may also be monitored by the information manager  312 . 
   The usage data collected by the information manager  312  may be in total terms, or it may include data for specific devices or users. In one implementation, the information manager  312  may view the total usage of network  124  as well as the total usage of network  124  caused by the requests of a particular user or device. In a similar fashion, data representing total usage, and/or usage caused by particular users or devices, may be collected for CPU usage, memory usage, (I/O) interfaces usage, and hard disk usage on the entertainment servers  112 , and the home network devices  122 . 
   Policy Evaluator 
   Usage information collected by the information manager  312  may then be examined for resource contention issues. This may be done by the policy evaluator  314 , which may take the usage data collected by the information manager  312  and compare it to total available resources. Individual policies may spell out how individual user experiences for different users on the network  124  will be affected when resources of the network reach contention. For example, the data collected by the information manager  312  concerning the total usage of the network  124  may be viewed against the total available capacity of the network  124  to see if the network  124  is close to saturation. In a similar fashion, the CPU(s), memories, (I/O) interfaces, and hard disks, for entertainment server(s)  112 —as well as for network devices  122 —may be analyzed by the policy evaluator  314  for resource contention in order to determine if the CPU(s), memories, (I/O) interfaces, and hard disks are in danger of becoming oversaturated. 
   If no conflicts exist, and there is no danger of oversaturation of any of the resources of architecture  300 , then no intervention is necessary. However, if any of the resources are found to be close to saturation, the policy evaluator  314  may check the current state of the architecture  300  against a desired policy in order to determine whether the current state of the architecture  300  matches that mandated by the desired policy. 
   The saturation limits used by the policy evaluator  314  may themselves be set, or reset, by a user. For example, saturation may be defined as 80% of the total capacity of the CPU of the entertainment server  112 . Thus, when 80% of the capacity of the CPU on the entertainment server  112  is being used, the policy evaluator  314  will recognize the CPU as being saturated. Setting saturation limits like this below 100% may avoid reaching a situation where an entertainment server  112  or home network device  122  is over subscribed. 
   In addition, the desired policies themselves may be predetermined or pre-entered by users, or set and reset during operation of the architecture  300 . In one exemplary implementation, a variety of possible predetermined desired policies may be loaded onto an entertainment server  112  or home network device  122  by a manufacturer or other entity in the distribution chain from the manufacturer to the user. The user may then choose from a list of the possible preset options to activate a predetermined desired policy most suitable given the user&#39;s own unique needs and priorities. Preset options, and predetermined desired policies, available to a user may be presented in easy to follow ‘plain English’ (i.e. language understandable by non technical users). 
   As mentioned above, policies direct how certain user experiences should be maintained in the face of resource contention. For example, a desired policy might mandate a flawless or high quality experience for the first (chronological) user of the architecture  300  while degrading the experience for subsequent users. Potentially, such a desired policy might include refusing service to a last user whose use might lead to resource contention. 
   Alternately, another desired policy might mandate a flawless or high quality experience for a high priority user (such as a parent or an owner of an entertainment server  112 ) and degrade the experience for lower priority users (e.g. children and non owners of an entertainment server  112 ). Such a policy could potentially include refusing service to a lowest priority user whose use might lead to resource contention. 
   In another example, a desired policy might mandate a flawless or high quality user experience for the highest quality display (e.g. a HDTV monitor) and degrade the experience for lower quality displays (e.g. the SDTV monitors). Alternately, the desired policy could mandate delivering HD content only to HD displays, and SD content to all other displays. 
   Moreover, a desired policy might mandate the degradation of all user experiences equally, such that all users share the resources of architecture  300 , as well as the degradation of the resources of architecture  300 , fairly. In addition, the desired policy might also allow one or more priority users to decide the fates of lower priority users. In such a case, prompts could be issued to the one or more priority users listing the lower priority users and the possible actions that could be taken in order to rectify any resource contention issues. The one or more high priority users could then respond in a manner of their choosing. For example, consider a scenario in which a high priority user goes to watch a media stream on the main TV  106  in the living room  104  and forgets to discontinue receiving a media content stream on the secondary TV  108  in the bedroom  102 . Later, if resource contention develops, the high priority user could be issued a prompt on the main TV  106  giving him the option of discontinuing the streaming to the secondary TV  108 . 
   In addition, all of the desired policies mentioned above might also contain provisions to punish or contain high volume users. For example, the policy evaluator  314  could examine the usage data for evidence of any users or devices consuming a disproportionate percentage of the resources of the architecture  300 . If found, these users or devices could be subjected to special treatment, including degradation of user experience, or preclusion from further use of the resources of architecture  300 . 
   Enforcement Module 
   Once the information collected by the information manager  312  has been examined for resource contention, and the current state of the architecture  300  has been reviewed against the desired policy by the policy evaluator  314 , the enforcement module  316  takes control and ensures that the desired policy is implemented across all users and devices. 
   The enforcement module  316  may follow two broad categories of enforcement—interactive and non-interactive. What form of enforcement the enforcement module  316  follows may be mandated by the desired policy, a pre-entered computer setting, or an answer received from a user prompt. 
   In the event that interactive enforcement is mandated, the enforcement module  316  may notify one or more users that resource contention exists and then present them with options for remedying the situation. Both the notifications and options may be presented to users in easy to follow ‘plain English’ (i.e. language understandable by non technical users). For example, in the event that usage of the network  124  is too high, the enforcement module  316  might present the one or more users with one or more options. In one implementation the enforcement module  316  might present the one or more users with the option of listening to music instead of watching TV since delivery of audio content consumes less bandwidth than the delivery of audio and video content. Additionally, the enforcement module  316  could direct the one or more users to switch from an HD feed to an SD feed (for example, from an HDTV channel to a SDTV channel) in order to decrease the network usage and thus ameliorate the related network resource contention issue. 
   In another possible implementation, the enforcement module  316  could prompt the one or more users to join a media experience shared with other users (multicast vs. unicast). Additionally, the enforcement module  316  could prompt the one or more users to switch to a delayed playback mode. Such an election would allow the one or more entertainment servers  112  to download and cache the media in non-real-time before playing it for the one or more users. Also, the enforcement module  316  could give the one or more users the choice to allow a reduction in bit-rate of media content being delivered to them through use of a transrater/transcoder. 
   Moreover, the enforcement module  316  could offer the one or more users the choice of reducing the media encoder bit-rate (if the source is being encoded in real-time). Additionally, the enforcement module  316  could offer the one or more users the choice to switch to a different bit-rate and/or format in a multi-bit-rate/multi-format media file. 
   In yet another example, the enforcement module  316  could allow the one or more users to choose to enable network prioritization (e.g. WiFi Multimedia) to ensure that the most important streams are not degraded (which in turn means that streams of lesser importance might be degraded). 
   Similarly, in the event that usage of the memory  308 ,  320  in the one or more entertainment servers  112  or home network devices  122  is too high, the enforcement module  316  might present the one or more users with one or more options designed to decrease memory usage. In one exemplary implementation, the enforcement module  316  might present the one or more users with the option of switching to viewing non-digital rights management (DRM) protected media content, such as switching television channels from a pay site such as a Home Box Office® TV channel, to a publicly available channel such as an American Broadcasting Company (ABC) TV channel. This action may decrease memory requirements by vitiating the need to load encryption/decryption or policy manager components on the memory  308 ,  320  of the one or more entertainment servers  112  and home network devices  122 . 
   The enforcement module  316  could also prompt one or more users to allow for the unloading of components not in use. In one instance this could include moving at least one of the one or more users to another entertainment server  112 , such that the entertainment server  112  from which the at least one user was moved could be made devoid of users, and therefore could be shut down. 
   In another example, the enforcement module  316  could prompt the one or more users to allow for the switching of experiences of the one or more users. For example, the enforcement module  316  could reduce the fidelity of the UI experience (if it is driven from the one or more entertainment servers  112  or the home network devices  122 ) from a rich experience to a flat experience. 
   In the event that the enforcement module  316  determines that CPU usage on the one or more entertainment servers  112  or home network devices  122  is too high, the enforcement module  316  may prompt the one or more users to take appropriate actions to decrease CPU usage. For example, the enforcement module  316  may prompt the one or more users to switch to viewing non-DRM protected media content in order to eliminate the encryption/decryption and policy manager overhead associated with DRM content. Similarly, the enforcement module  316  may prompt the one or more users to switch from an HD feed to an SD feed (for example, from an HDTV channel to an SDTV channel). 
   In the event that the enforcement module  316  determines that hard disk usage on the one or more entertainment servers  112  or home network devices  122  is too high, the enforcement module  316  may prompt the one or more users to take appropriate actions to decrease hard disk usage. For example, the enforcement module  316  may prompt the one or more users to switch to a lower bandwidth stream (e.g. music instead of television, SDTV instead of HDTV). 
   In the event that a bottleneck in encountered at, for example, an (I/O) interface, another option that can be employed is the use of load-balancing between multiple entertainment servers  112  or home network devices  122 . In such case, the enforcement module  316  may offer one or more users the option to allow the stand alone media experience policy engine  204  and/or the media experience policy engines  120 ,  202  from entertainment servers  112  and home network devices  122  to collaborate in order to dynamically shift load from one of the entertainment servers  112  or network devices  122  to another. Alternately, one “primary” policy engine  120 ,  202  on one of the entertainment servers  112  or home network devices  122 —or the stand alone media experience policy engine  204 —could collect feedback from all PCs/devices and act on it to decrease and ultimately ameliorate the bottleneck. 
   In one implementation, only user(s) whose user experience will be affected by mandates from the desired policy will be presented with enforcement options. In another implementation, users whose experience will not be affected may also be issued information relating to the possible resource contention issues and the possible actions which may be taken. 
   In the case of non-interactive enforcement, the policy enforcement module  316  may implement changes to the environment  300  without prompting any users or giving any warning of impending changes that will be implemented. Alternately, the policy enforcement module  316  may display an explanation or description of ensuing changes to affected users, nonaffected users, or any subsets thereof. In such a scenario, explanations may be presented to users in easy to follow ‘plain English’ (i.e. language understandable by non technical users). 
   It will be understood that the actions that can be taken by policy enforcement module  316  to institute the enforcement measures using noninteractive enforcement may include all of those measures discussed above in conjunction with interactive enforcement. 
   It will also be understood that other techniques can be used in addition to those mentioned above. Moreover, the techniques above may be mixed and matched, such that the enforcement module  316  may use multiple approaches together, including combinations of both interactive and non-interactive enforcement techniques. 
   In addition, it will also be understood that many changes mentioned above necessarily incur expenses. For example, when a high bit-rate stream is dynamically transrated/transcoded, quality of a user experience is reduced and increased CPU usage on an entertainment server  112  or home network device  122  results. Accordingly, the policy engine  120  may evaluate options using a multi-variable evaluation. For example the policy engine  120  may identify all options that would resolve the highest priority bottleneck and rate the options in order to find the best fit (i.e. the one that does not spawn an even higher priority bottleneck). Once a best fit is identified in which no resources are overtaxed, the policy engine  120  may implement the option. 
   Media Experience Policy Adherence Method 
   Another aspect of dealing with dynamic load balancing of entertainment servers  112  and home network devices  122  is shown in  FIG. 4  which illustrates an exemplary method  400  performed by the media experience policy engine  120 . For ease of understanding, the method  400  is delineated as separate steps represented as independent blocks in  FIG. 4 ; however, these separately delineated steps should not be construed as necessarily order dependent in their performance. Additionally, for discussion purposes, the method  400  is described with reference to elements in  FIGS. 1-3 . 
   The method  400  continuously monitors the status of media content delivery resources at a block  402 . This may be accomplished by continuously monitoring resource usage, including, for example, CPU usage, memory usage, (I/O) interface usage and hard disk usage, for the one or more entertainment servers  112  as well as the network devices  122  from which users are making requests for media content (block  404 ). In addition, the usage of the network  124  may also be monitored. In one exemplary implementation, the monitoring of resources may be performed by the information manager  312 . The collected usage data may be in total terms, or it may include data for specific devices  122  or users. In one implementation, the method  400  may view the total usage of network  124  as well as the total usage of network  124  caused by the requests of a particular user, home network device  122  or entertainment server  112 . In a similar fashion, data representing total usage, and/or usage caused by particular users or devices, may be collected for CPU usage, memory usage, (I/O) interfaces usage, and hard disk usage on the entertainment servers  112 , and the home network devices  122 . 
   The collected usage information may be examined by the method  400  for resource contention issues (block  406 ). In one exemplary implementation, this may be done by the policy evaluator  314 . The collected usage data may be compared against total available resource data. For example, the collected data concerning the total usage of the network  124  may be viewed against the total available capacity of the network  124  to see if the network  124  is close to saturation. In a similar fashion, the CPU(s), memories, (I/O) interfaces, and hard disks, for entertainment server(s)  112 —as well as the network devices  122 —may be analyzed for resource contention in order to determine if the CPU(s), memories, (I/O) interfaces, and hard disks are in danger of becoming oversaturated. 
   If no conflicts exist, and there is no danger of over saturation of any of the resources of architecture  300 , then no intervention is necessary, and the method  400  returns to block  402  (i.e. the “no” branch from block  406 ). 
   Alternately, however, if any of the resources are found to be close to saturation (i.e. the “yes” branch from block  406 ), the method  400  will compare the current state of the architecture  300  against a desired policy in order to determine whether the current state of the architecture  300  matches that which is mandated under the desired policy (block  408 ). Desired policies may, for example, be pre-entered by users, preset by manufacturers or resellers, or set and reset during operation of the architecture  300 . In one implementation, a desired policy might mandate a flawless or high quality experience for the first (chronological) user of the architecture  300  while degrading the experience for subsequent users. Potentially, such a desired policy might include refusing service to a last user whose use might lead to resource contention. 
   In another possible implementation, a desired policy might mandate a flawless or high quality experience for a user of primary user (such as a parent or an owner of an entertainment server  112 ) and degrade the experience for lower priority users (e.g. children and non owners of an entertainment server  112 ). Such a policy could potentially include refusing service to a lowest priority user whose use might lead to resource contention. 
   In yet another possible implementation, a desired policy might mandate a flawless or high quality user experience for the highest quality display (e.g. a HDTV monitor) and degrade the experience for lower quality displays (e.g. the SDTV monitors). Alternately the policy could mandate delivering HD content only to HD displays, and SD content to all other displays. 
   In still another possible implementation, a desired policy might mandate the degradation of all users experiences equally, such that all users fairly share the resources of architecture  300 , as well as the degradation of the resources of architecture  300 . 
   In all of the implementations above, desired policies might also contain provisions to punish or contain high volume users. For example, the usage data could be examined for evidence of any users or devices consuming a disproportionate percentage of the resources of the architecture  300 . If found, these users or devices could be subjected to special treatment, including degradation of user experience, or preclusion from further use of the resources of architecture  300 . 
   If the current state of the architecture  300  is found at block  408  to be in compliance with the desired policy then no intervention is necessary, and the method  400  returns to block  402  (i.e. the “yes” branch from block  408 ). If, however, the current state of the architecture  300  is found at block  408  to not be in compliance with the desired policy (i.e. the “no” branch from block  406 ), policy enforcement may be pursued. 
   The method  400  may impose interactive enforcement (block  410 ) or noninteractive enforcement (block  412 ) depending on what form of enforcement is mandated by the desired policy, a pre-entered computer setting, or an answer received from a user prompt. 
   Under interactive enforcement, the method  400  may notify one or more users that resource contention exists and then present them with options for remedying the situation. The users notified may include those whose user experience may be affected by changes to be brought on by enforcement of the desired policy, or alternately, all users or a subset thereof may receive notification. 
   In one exemplary implementation, in the event that usage of the network  124  is too high, the method  400  might present one or more users with one or more of several options including the option of listening to music instead of watching TV, or switching from an HDTV channel to a SDTV channel in order to decrease the network usage. Similar prompts may be presented in order to ameliorate resource contention issues arising from CPU, memory, and hard disk usage, as well as I/O interface bottlenecks. 
   In the event that non-interactive enforcement (block  412 ) is pursued by the method  400 , changes may be made to the environment  300  without prompting any users or giving any warning of impending changes. Alternately, an explanation or description of ensuing changes may be displayed to affected users, nonaffected users, or to any subsets thereof. 
   For example, if network usage is determined to be too high, under one exemplary implementation of noninteractive enforcement, the media bit-rate of media content being streamed to one or more users may be reduced through use of a transater/transcoder. Similar actions may be taken in order to ameliorate resource contention issues arising from CPU, memory, and hard disk usage, as well as I/O interface bottlenecks. 
   It will also be understood that other techniques can be used in addition to those examples mentioned above, including offering prompts to one or more high priority users, enabling them to decide the fates of lower priority users. Moreover, the techniques above may be mixed and matched, such that multiple approaches may be used together, including combinations of both interactive and non-interactive enforcement techniques. 
   In one exemplary implementation, the enforcement module  316  may be used to affect both the interactive and the noninteractive enforcement techniques. 
   It will also be understood that most changes mentioned above necessarily incur expenses. For example, when a high bit-rate stream is dynamically transrated/transcoded, quality or a user experience is reduced and increased CPU usage or an entertainment server or home network device  122  is increased. Accordingly, enforcement decisions may be made by evaluating options using a multi-variable evaluation. For example, the method  400  might rate all options available to resolve the highest priority bottleneck on the basis of a best fit (i.e. an option which will not spawn an even higher priority bottleneck). Once a best fit is identified in which no resources are overtaxed, the option may be implemented by the method  400 . 
   Once the policy has been enforced (blocks  410 ,  412 ) the method  400  may then return to block  402  and resume continuously monitoring the resources of the environment  300 . 
   Policy Evaluation Method 
   Another aspect of evaluating the desired policy is shown in  FIG. 5 , which illustrates an exemplary method  500  performed by the policy evaluator  314  residing at the entertainment server  112 . For ease of understanding, the method  500  is delineated as separate steps represented as independent blocks in  FIG. 5 ; however, these separately delineated steps should not be construed as necessarily order dependent in their performance. Additionally, for discussion purposes, the method  500  is described with reference to elements in  FIGS. 1-3 . 
   Once usage information regarding the usage of the resources of architecture  300  has been collected, it may be analyzed to see if resource contention issues exist (block  502 ). In one exemplary implementation, the usage data is collected by the information manager  312 . The usage data may be analyzed by comparing it to total available resources in the architecture  300 . For example, the data collected by the information manager  312  concerning the total usage of the network  124  may be viewed against the total available capacity of the network  124  to see if the network  124  is close to saturation. In a similar fashion, the CPU(s), memories, (I/O) interfaces, and hard disks, for entertainment server(s)  112 —as well as the network devices  122 —may be analyzed for resource contention in order to determine if the CPU(s), memories, (I/O) interfaces, and hard disks are in danger of becoming oversaturated. 
   If no conflicts exist, and there is no danger of over saturation of any of the resources of architecture  300  (i.e. the “no” branch from block  504 ) then no intervention is necessary, and the method  500  returns to block  502 . Alternately, however, if any of the resources are found to be close to saturation (i.e. the “yes” branch from block  504 ), the method  500  will check the current state of the architecture  300  against a desired policy in order to determine whether the current state of the architecture  300  matches that which is mandated under the desired policy (block  506 ). 
   Desired policies may, for example, be pre-entered by users, preset by manufacturers or other entities in the distribution chain from manufacturer to user, or set and reset during operation of the architecture  300 . In one implementation, a desired policy might mandate a flawless or high quality experience for the first (chronological) user of the architecture  300  while degrading the experience for subsequent users. Potentially, such a desired policy might include refusing service to a last user whose use might lead to resource contention. In another possible implementation, a desired policy might mandate a flawless or high quality experience for a user of primary user (such as a parent or an owner of an entertainment server  112 ) and degrade the experience for lower priority users (e.g. children and non owners of an entertainment server  112 ). Such a policy could potentially include refusing service to a lowest priority user whose use might lead to resource contention. 
   In yet another possible implementation, a desired policy might mandate a flawless or high quality user experience for the highest quality display (e.g. a HDTV monitor) and degrade the experience for lower quality displays (e.g. the SDTV monitors). Alternately the policy could mandate delivering HD content only to HD displays, and SD content to all other displays. 
   In still another possible implementation, a desired policy might mandate the degradation of all users experiences equally, such that all users share the resources of architecture  300 , as well as the degradation of the resources of architecture  300 , fairly. 
   In all of the implementations above, desired policies might also contain provisions to punish or contain high volume users. For example, any users or devices consuming a disproportional percentage of the resources of the architecture  300  could be subjected to special treatment, including degradation of user experience, or preclusion from further use of the resources of architecture  300 . 
   The state of the architecture  300  may be compared to the desired policy in order to see if a desired outcome mandated by the desired policy matches the actual state of the architecture  300 . If the actual outcome matches the desired outcome, (i.e. the “yes” branch from block  508 ) then no intervention is necessary, and the method  500  returns to block  502 . Alternately, if the actual outcome does not match the desired outcome, (i.e. the “no” branch from block  508 ) then intervention is necessary, and the method  500  continues to block  510 , where a command is given to begin policy enforcement. 
   Enforcement Method 
   Another aspect of evaluating the desired policy is shown in  FIG. 6 , which illustrates an exemplary method  600  performed by the enforcement module  316  residing at the entertainment server  112 . For ease of understanding, the method  600  is delineated as separate steps represented as independent blocks in  FIG. 6 ; however, these separately delineated steps should not be construed as necessarily order dependent in their performance. Additionally, for discussion purposes, the method  600  is described with reference to elements in  FIGS. 1-3 . 
   Once the current state of the architecture  300  has been found to be in contrivance of the desired policy, an order may be issued by the media experience policy engine  120 , or one of its components, to begin enforcement of the desired policy. Upon receipt of this command (block  602 ), the method  600  may review the desired policy, other preset settings, or issue a prompt to a user, in order to determine if an interactive or noninteractive enforcement approach should be pursued (block  604 ). 
   If an interactive approach is desired (i.e. the “interactive” branch from block  604 ), the method  600  proceeds to issue one or more user prompts to one or more users in an effort to discontinue or change user or device behavior resulting in resource contention (block  606 ). 
   For example, in the event that usage of the network  124  is too high, the method  600  might cause prompts to be displayed on monitors being used by the one or more users with one or more options. In one implementation the one or more users might be given the option of listening to music instead of watching TV since delivery of audio content consumes less bandwidth than the delivery of audio and video content. Additionally, the one or more users might be given the option to switch from an HDTV channel to a SDTV channel in order to decrease the network usage and thus ameliorate the related network resource contention issue. 
   In another possible implementation, the one or more users could be prompted to join a media experience shared with other users (multicast vs. unicast). Additionally, the one or more users could be prompted to switch to a delayed playback mode. If the media content is being sourced from outside the network  124 , such an election would allow the one or more entertainment servers  112  to download and cache the media content in non-real-time before playing it for the one or more users. This option may reduce a network load on a wide area network (WAN) link of the entertainment server  112  (wherein the bandwidth of the WAN might be partially shared with that of network  124 ). Alternately, if the media content is already stored on the network  124 , the device  122  may download and cache the media content, thus reducing a network load on the network  124 . 
   In addition, the one or more users could be presented with the choice of allowing a reduction in bit-rate of media content to be delivered to them through use of a transrater/transcoder. Moreover, the one or more users could be presented with the option of having the media encoder bit-rate reduced (if the source is being encoded in real-time). Additionally, the one or more users could be given the option of switching to a different bit-rate and/or format in a multi-bit-rate/multi-format media file. In yet another example, the one or more users could be given the option of enabling network prioritization (e.g. WiFi Multimedia) to ensure that the most important streams of media content being delivered from the one or more entertainment servers  112  to the home network devices  122  are not degraded (which in turn means that streams of lesser importance might be degraded). Alternately, the one or more users could be prompted to reduce the fidelity of the UI experience (if it is driven from the one or more entertainment servers  112  or the home network devices  122 ) from a rich experience to a flat experience. 
   Similarly, in the event that usage of the memory  308 ,  320  in the one or more entertainment servers  112  or home network devices  122  is too high, method  600  might present the one or more users with one or more of several options designed to decrease memory usage. In one exemplary implementation, the one or more users might be presented with the option of switching to viewing non-digital rights management (DRM) protected media content, such as switching television channels from a pay channel such as a Home Box Office® TV channel, to a publicly available channel such as an American Broadcasting Company TV channel. This action may decrease memory requirements by vitiating the need to load encryption/decryption or policy manager components on the memory  308 ,  320  of one or more entertainment servers  112  and home network devices  122 . 
   In the event that CPU usage on the one or more entertainment servers  112  or home network devices  122  is too high, the one or more users may be prompted to take appropriate actions to decrease CPU usage. For example, the one or more users may be prompted to switch to viewing non-DRM protected media content in order to eliminate the encryption/decryption and policy manager overhead associated with DRM content. Similarly, the one or more users may be prompted to switch from an HD feed to an SD feed (for example, from an HDTV channel to an SDTV channel). 
   In the event that hard disk usage on the one or more entertainment servers  112  or home network devices  122  is too high, the one or more users may be prompted to take appropriate actions to decrease hard disk usage. For example, the one or more users may be prompted to switch to a lower bandwidth stream (e.g. music instead of television, SDTV instead of HDTV). 
   In one implementation, only user(s) whose user experience will be affected by mandates from the desired policy will be presented with enforcement options. It is also possible, however that nonaffected users could also receive notifications of the resource contention issue as well as the possible solutions available. 
   In the event that a bottleneck in encountered at, for example, an (I/O) interface, another option that can be employed is the use of load balancing between multiple entertainment servers  112  or home network devices  122 . In such case, the one or more users could be prompted to allow the stand alone media experience policy engine  204  and/or the media experience policy engines  120 ,  202  from entertainment servers  112  and home network devices  122  to collaborate and dynamically shift the load from one of the entertainment servers  112  or network devices  122  to another. Alternately, one “primary” policy engine  120 ,  202  on one of the entertainment servers  112  or home network devices  122 —or the stand alone media experience policy engine  204 —could collect feedback from all entertainment servers  112  and home network devices  122  and act on it to decrease and ultimately ameliorate the bottleneck. 
   Once the one or more users to whom these prompts are issued enter their responses (block  608 ), the method  600  may institute the changes in order to effect the desired policy (block  610 ). It will be understood, that one implementation could include issuing prompts to high priority users, enabling them to make choices, and thus decide the fates of lower priority users. 
   In the case of non-interactive enforcement (i.e. the “noninteractive” branch from block  604 ), the method  600  may proceed to implement changes to the environment  300  without prompting any users. The method  600  may provide an explanation or description of ensuing changes to affected users, nonaffected users, or any subsets thereof, before or while the changes are being instituted (block  612 ), however this need not be done. For example the method may directly institute appropriate enforcement measures (block  610 ) without issuing any warnings to any users. 
   It will be understood that the actions that can be taken by the method  600  to institute the enforcement measures using noninteractive enforcement may include all of those measures discussed above in conjunction with interactive enforcement. In addition, in one exemplary implementation of noninteractive enforcement, if usage of memory  308 ,  320  is found to be to too high on the one or more entertainment servers  112  or home network devices  122 , components not in use could be automatically unloaded. 
   It will also be understood that other techniques can be used in addition to those mentioned above. Moreover, the techniques above may be mixed and matched, multiple approaches could be employed together. Moreover, combinations of both interactive and non-interactive enforcement techniques could be employed. 
   It will also be understood that most changes mentioned above necessarily incur expenses. For example, when a high bit-rate stream is dynamically transrated/transcoded, quality or a user experience is reduced and increased CPU usage or an entertainment server or home network device  122  is increased. Accordingly, the method  600  could evaluate possible enforcement options using a multi-variable evaluation. For example the method  600  may identify all options that would resolve the highest priority bottleneck and rate the options in order to find the best fit (i.e. the one that does not spawn an even higher priority bottleneck). Once a best fit is identified in which no resources are overtaxed, the option may be implemented. 
   Once the appropriate enforcement measures have been implemented (block  610 ) the method  600  may issue a report to one or more media experience policy engines  120 , one or more client side MEPEs  202 , the stand alone media experience policy engine  204 , or to other applications on the entertainment servers  112  or home network devices  122  reporting completion of the procedures chosen to bring the architecture  300  in line with the desired policy (block  614 ). Such a report need not be issued however, 
   CONCLUSION 
   Although the invention has been described in language specific to structural features and/or methodological acts, it is to be understood that the invention defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as exemplary forms of implementing the claimed invention.

Technology Category: 4