Patent Description:
Content delivery networks (e.g., cable, satellite, Internet) have been developed that can deliver various multimedia assets from a remote source to a user's equipment for viewing or interaction. Multimedia assets include live broadcast programs, web casts, Pay-per-View (PPV) events, and/or VOD content. Sometimes, a user may select multimedia assets to be recorded locally on the user's equipment, for example, on a VCR or digital video recorder (DVR). A live broadcast is typically viewed and/or recorded at the scheduled time set by the broadcast station, whereas
VOD content can be viewed and recorded at any user-specified time prior to the expiration time of the VOD content. PPV programs also have expiration dates and may be viewed and/or recorded before the expiration times/dates of the asset from the source server.

Recording a multimedia asset requires a tuner associated with the user equipment to be tuned to the channel in which the multimedia asset is available. Recording an additional multimedia asset at the same time on the same device could require an additional tuner. If the device does not have an additional tuner, the user may have to forgo recording the additional multimedia asset.

The status of multimedia assets may change from time to time. For example, broadcast programs may migrate to VOD or web casts, or PPV content may migrate to VOD. For example, HBO may remove an asset from their regular scheduled broadcast lineup, but continue to make the content available on VOD for an additional amount of time. Another status change may be a change in the expiration time/date of an asset. Expiration date/time for an asset is typically listed in an interactive multimedia guidance application, such as an interactive program guide (IPG). The user may not always be aware of a status change that may prevent the user from viewing and/or recording the asset. Present systems, however, lack an integrated approach to monitor the status of a multimedia asset and to timely notify users of a status change that may impact them.

<CIT> discloses a broadcast recording system for recording broadcast contents for time-shift viewing.

According to an aspect, there is provided a method according to claim <NUM> and/or a system according to claim <NUM>. A computer program according to claim <NUM> may also be provided.

The above and other features of the present invention, its nature and various advantages will be more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings in which:.

The disclosed systems and methods are directed to taking action when the status of a multimedia asset is scheduled to change, and to optionally locally record the multimedia asset before the status. change takes effect. The status may be monitored by an interactive multimedia guidance application, such as an interactive program guide (IPG).

<FIG> shows illustrative interactive multimedia delivery system <NUM> in accordance with one embodiment of the invention. User equipment <NUM> receives content in the form of signals from multimedia sources 120a, 120b, 120c over communications path <NUM>. In practice there may be multiple multimedia sources 120a, 120b, 120c and user equipment <NUM>, but only three multimedia sources and one user equipment are shown in <FIG> to avoid over-complicating the drawing.

Multimedia sources 120a, 120b, 120c may be any suitable media source such as, for example, a cable system headend, a satellite multimedia distribution facility, a multimedia broadcast facility, a pay-per-view (PPV) server, a game service provider (e.g., for online gaming), or any other suitable facility or system for originating or distributing content. Multimedia source 120c is depicted as an on-demand server (e.g., VOD server). Multimedia sources 120a, 120b, 120c may be configured to transmit signals over any suitable communications path <NUM> including, for example, a satellite path, a fiber-optic path, a cable path, an Internet path, or any other suitable wired or wireless path. The signals may carry any suitable content such as, for example, television programs, games, music, news, web services, or any other suitable content. In some embodiments, multimedia sources 120a, 120b, 120c may include control circuitry for executing the instructions of an interactive multimedia guidance application such as, for example, the server side instructions of a client/server or online interactive multimedia guidance application.

User equipment <NUM> may include any equipment suitable for providing an interactive multimedia experience. User equipment <NUM> may include television equipment such as a television, set-top box, recording device, video player, user input device (e.g., remote control, keyboard, mouse, touch pad, touch screen and/or voice recognition interface), or any other device suitable for providing an interactive multimedia experience. For example, user equipment <NUM> may include a DCT <NUM>, <NUM>, <NUM>, <NUM> or <NUM> set-top box provided by Motorola, Inc. In some embodiments, user equipment <NUM> may include computer equipment, such as a personal computer with a television card (PCTV). In some embodiments, user equipment <NUM> may include a gaming system, a portable electronic device, such as a portable DVD player, a portable gaming device, a cellular telephone, a PDA, a music player (e.g., MP3 player), or any other suitable portable or fixed device.

In the example of <FIG>, user equipment <NUM> includes at least control circuitry <NUM>, display device <NUM>, recording device <NUM> and user input device <NUM>, which may be implemented as separate devices or as a combination device or devices. An interactive multimedia guidance application, such as an interactive program guide (IPG), may be implemented on user equipment <NUM> to display, on display device <NUM>, the content transmitted by multimedia sources 120a, 120b, 120c over path <NUM> and to provide interactive multimedia guidance application features, such as grid listing of available assets. In addition, Web content <NUM>, such as streamed audio and video, may be transmitted to the user equipment <NUM>, for example, over the Internet.

Display device <NUM> may be any suitable device such as, for example, a television monitor, a computer monitor, or a display incorporated in user equipment <NUM> (e.g., a cellular telephone or music player display). Display device <NUM> may also be configured to provide for the output of audio.

Control circuitry <NUM> is adapted to receive user input from input device <NUM> and execute the instructions of the interactive multimedia guidance application. Control circuitry <NUM> may include one or more tuners (e.g., analog or digital tuners), encoders and decoders, processors (e.g., Motorola <NUM> family processors), memory (e.g., RAM and hard disks), communications circuitry (e.g., cable modem circuitry), input/output circuitry (e.g., graphics circuitry), connections to the various devices of user equipment <NUM>, and any other suitable component for providing analog or digital multimedia programming, program recording, and interactive multimedia guidance features. In some embodiments, control circuitry <NUM> may be included as part of one of the devices of user equipment <NUM> such as, for example, part of display <NUM> or any other device (e.g., a set-top box, television and video player).

In some embodiments, the interactive multimedia guidance application may provide features to the user with a client/server approach. There may be one server for each instance of user equipment <NUM>, one for multiple instances of user equipment <NUM>, or a single server may serve as a proxy for each instance of user equipment <NUM>.

Any suitable number of users may have equipment, such as user equipment <NUM>, connected to multimedia sources 120a, 120b, 120c and one or more data sources 124a, 124b. But for the clarity of the figure, the equipment of only a single user is shown. The equipment of the plurality of users may be' connected to media sources 120a, 120b, 120c, web content <NUM>, and data sources 124a, 124b using a cable television network, a local area network (LAN), a wireless network, or any other suitable means, or a combination thereof. In some embodiments, the equipment of the plurality of users may be connected to each other using any suitable means.

User equipment <NUM> may receive interactive multimedia guidance application data from one or more data sources 124a, 124b. Data sources 124a, 124b may provide data for a particular type of content or for a particular application. For example, one data source 124a may provide data for non-on-demand assets (e.g., non-pay and pay-per-view programs), and another data source 124b may provide data for on-demand assets (e.g., VOD programs). Or, for example, a single data source may provide both of these types of data. For example, one of the data sources 124b or an additional data source (not shown) may also provide data for an interactive program guide (IPG). Another of the data sources 124a, 124b or a separate data source (not shown) may provide, for example, data for another interactive application (e.g., a home shopping application). In some embodiments, data sources 124a, 124b or additional data source (not shown) may provide data to the interactive multimedia guidance application using a client/server approach. There may be one server per data source, one for all sources or in some embodiments, a single server may communicate as a proxy between user equipment <NUM> and various data sources 124a, 124b. In some embodiments, data sources 124a, 124b may provide data as an online interactive multimedia guidance application. In such embodiments, data sources 124a, 124b may include control circuitry for executing the instructions of the online multimedia guidance application.

<FIG> shows media sources 120a, 120b, 120c and data sources 124a, 124b as separate elements. In practice, their functionality may be combined and provided from a single system at a single facility, or multiple systems at multiple facilities. For example, one media source 120b and data source 124b may be combined to provide VOD content and associated VOD data.

In one embodiment, the interactive multimedia guidance application may be a stand-alone application implemented in a set-top box which may be part of user equipment <NUM>. An interactive program guide may be downloaded periodically, for example, every day or once a week, from a data source, such as data source 124a, 124b and the application operates based on the downloaded programming information until the next update.

In another embodiment, the interactive multimedia guidance application may be a client/server application, with the server represented, for example, by a server on the cable headend, and the client by the user equipment <NUM>, a personal computer, a mobile telephone, a PDA, and the like. In this scenario, the client polls the server for updates of programming information.

The interactive multimedia guidance application can also be implemented as a web browser capable of accessing a web sits containing programming information and possibly multimedia assets.

For the purposes of clarity, the following discussion may sometimes describe an embodiment in which the interactive multimedia guidance application is an interactive program guide (IPG). It will be understood, however, that the following discussion and the features discussed may be applied to any interactive multimedia guidance application. The following discussion may occasionally also describe certain embodiments as being responsive to an expiration date. However, it should be understood that the embodiments may react to any change in status of the multimedia asset, such as a change in the media source providing the multimedia asset, a change in an availability time window of the multimedia asset, a change in a format of the multimedia asset, and the like.

The following flow charts serve to illustrate methods implemented in some embodiments of this invention. Though the examples focus on content that is alternatively available via a VOD server delivery mechanism, the invention is equivalently applicable to content that is alternatively available via PPV channels or Internet delivery mechanisms. Though the invention applies broadly to multimedia assets, as described earlier to include video/audio programs, interactive content, games, and applications; the following example is provided with respect to video/audio assets for clarity.

<FIG> is a flow chart of an illustrative process <NUM> for locally recording a multimedia asset, before the asset becomes unavailable. Process <NUM> begins at step <NUM>. At step <NUM>, a user may select a multimedia asset, such as a broadcast program, VOD content or a PPV program. Alternatively or in addition, the system may also select a multimedia asset without user input based, for example, on the user's viewing history, a user profile, or agents programmed with user preferences, all of which may interact with the interactive multimedia guidance application.

At step <NUM>, the interactive multimedia guidance application will check a status of the multimedia asset at the source server, such as a time window during which the asset remains available for viewing. At step <NUM>, the interactive multimedia guidance application may determine, for example, a time when the asset will become available as VOD content. The user may select viewing/recording options on a graphic user interface (GUI). In one embodiment, the user may view the multimedia asset immediately, and process <NUM> moves to step <NUM>. Alternatively, if the user schedules viewing and/or recording the multimedia asset for a later time, process <NUM> may move to step <NUM>.

At step <NUM>, if the user views the VOD content immediately, the system monitors at step <NUM> if the user views the entire content. If the system determines at step <NUM> that the user has finished viewing the multimedia asset, the system then determines, at step <NUM>, if the user has further interest in the asset, for example, if the user has listed the asset under "Favorites. " If at step <NUM> no further interest from the user is detected, then process <NUM> ends at step <NUM>. The asset will still be accessible to the user unless a status change takes effect that makes in the asset inaccessible. However, the system may stop monitoring the status of the asset at the source server. On the other hand, if the system determines at step <NUM> that the user has not finished viewing the multimedia asset, at step <NUM>, process <NUM> will move to step <NUM>, where the system continues to monitor the status of the asset at the source server.

If at step <NUM>, it is determined that the user has continued interest in the multimedia asset, process <NUM> moves to step <NUM> to check if a change in the status of the multimedia asset is impending. Likewise, the process moves from step <NUM>, where the user had scheduled the multimedia asset for future viewing / recording, to step <NUM> to check for an impending status change. If no change in the status is detected at step <NUM>, process <NUM> will move to step <NUM> and continue to determine the status of the multimedia asset. Conversely, at step <NUM>, if a change in the status is detected indicating, for example, that the asset will be moved to another channel or source, or will have an earlier expiration date at the source than the original expiration date, then process <NUM> moves to step <NUM> to check if the asset has already been locally recorded. If a local copy of the asset is available, no further action is taken, and process <NUM> ends at step <NUM>.

Conversely, at step <NUM>, if. it is determined that the asset has not been locally recorded, process <NUM> moves to step <NUM> and/or step <NUM> (depending on the implementation) to automatically alert the user of an impending change in status, for example, by displaying a "Last Chance Notification" (LCN) and/or to automatically record the multimedia asset locally before the status change takes effect. The LCN would thus enable a user to view and/or record an asset or at least a part of the asset ahead of the status change. Local recording may be subject to availability of sufficient storage capacity on recording device <NUM> and the resolution of scheduling conflicts with other scheduled recordings. A different alert notification "Now available on VOD" or the like could be displayed if the asset becomes available from another source; so that local recording of the asset may not be necessary or may at least be postponed.

<FIG> shows schematically an exemplary "Last Chance" notification window <NUM> displayed on a TV monitor or computer screen <NUM>. The exemplary message displayed in notification window <NUM> informs the user that the movie "Philadelphia" will no longer be available from the original source after December <NUM>, <NUM>. The user may receive more information and/or may be directed to an alternative source for the asset, such as an alternative VOD or. PPV channel, by pressing the SELECT" key on the remote control. Note that the asset listing in the illustrated interactive multimedia guidance application may be rearranged to display more than one notification, such as a list with notifications for assets changing status within the notification period. The notification window may also include active features (not shown) to enable a user to purchase the asset and/or to locally record the asset from the original source before the status of the asset on the source server changes.

Note that in various embodiments, notification <NUM> might be a notification that this is the "last chance" in the next <NUM> months to see a particular episode of a series (e.g. "Please note that this is the last time Movie X is going to be broadcast, or going to be on a premium channel, for the next <NUM> months"). This is relevant in a world where not everything is available on-demand on a server. In order to make this- happen, in one implementation, the interactive media guidance application might first search a local-listings database to see when the program might air in the future. Such local databases are: typically limited to two or three weeks of future program listings data Therefore, in other implementations, the application may interact with more extensive remote databases that contained listings and schedules for further out in the future (e.g. the next <NUM> months).

Additionally, other notification types and other options associated with notifications are possible in addition to the one illustrated by <FIG>. For example, in the context of a last chance notification related to the expiration of an episode of the Sopranos on HBO, a user might be prompted to (<NUM>) record the program locally or (<NUM>) buy the entire season's worth of episodes on DVD, the latter potentially through a click through billing interface to a third-party. on-line retailer such as Amazon.

Other variants and options for the last chance notification include marketing tie-ins for program related purchases, such as a recipe book from Barnes and Nobel, whose recipes were featured on a food channel program that is about to expire or peer-to-peer tie-ins such as a hot button to jump off to a discussion group related to the soon to expire program.

<FIG> is a flow chart of an illustrative process <NUM> for setting an alert period during which the user would be notified of a status change. The process <NUM> starts at step <NUM>. At step <NUM>, a user would enter an alert period specifying a time during which the user wishes to be notified of a status change. Since the user is likely to be interested in only a subset of the available assets, at step <NUM>, the system applies certain metadata terms to narrow the number of assets included in the notification. The metadata to be applied can be entered by the user or can be automatically generated by the system based, for example, on user preferences and/or viewing habits. Metadata may include, for example, search strings or search masks applied to listings in the interactive media guidance application and may include times/dates when a program is broadcast or available from another source (such as VOD or PPV), program genres, titles, actors, and other information available from the interactive media guidance application or remote databases accessible to the interactive media guide application. For example, a particular user may only be interested in notifications for comedy programming. The combination of steps <NUM> and <NUM> can be referred to as "setup. " At step <NUM>, the system creates a shorter list based on the metadata terms in the setup, and monitors the status of the multimedia assets on the list (e.g., by requesting program data from an interactive media guidance application). At step <NUM>, the system sends a notification to the user for each asset identified in the shorter list. The notification could be displayed on display device <NUM>; alternatively or in addition, an email notification or a text message, for example using short message service (SMS), or the like could be sent to a mobile phone, PDA, or a similar device. This may even allow the user to set a recording time for locally recording the asset, to view the asset, or to purchase the asset, if not already done so. The process <NUM> ends at step <NUM>.

<FIG> is a flow chart of an illustrative process <NUM> for determining whether the local storage space is adequate for recording a selected asset. Process <NUM> begins at step <NUM>. At step <NUM>, process <NUM> sets up a local recording session for the multimedia asset by first checking the available recording capacity. At step <NUM>, if it is determined that storage capacity is adequate, process <NUM> moves to step <NUM>. to locally record the asset. The process ends at step <NUM>.

Conversely, at step <NUM> if it is determined that the recording capacity is insufficient to record the asset, process <NUM> will check, at step <NUM>, if other stored assets can be deleted. Criteria for deleting stored assets may include dynamic factors. Some examples of factors that are considered (whether dynamic or not) and criteria with respect to those factors include designation of stored assets as "archived" (which assets would be less likely to be deleted), when the assets were last viewed, direct and indirect. input from the user with regard to the assets, and/or how frequently the user has accessed the stored assets. Assets targeted for deletion may include stored VOD assets or other recorded assets (e.g., pay-per-view. or broadcast recorded assets). A recorded asset may also be deleted if the interactive multimedia guidance application indicates that the recorded asset will be available from an alternative source in the future.

At step <NUM>, if the system determines that recording space can be made available by removing obsolete or deprioritized assets, process <NUM> moves to step <NUM> and deletes one or more identified obsolete assets and records the selected multimedia asset. Conversely, at step <NUM>, if sufficient recording space can not be provided, process <NUM> moves to step <NUM> to notify the user that the selected multimedia asset cannot be recorded, unless the user manually deletes one or more stored assets to make recording space available. Process <NUM> ends at step <NUM>.

<FIG> is a flow chart of an illustrative process <NUM> for resolving conflicts when two or more different multimedia assets are scheduled to be recorded locally. Process <NUM> starts at step <NUM>. At step <NUM>, the system checks if other assets in addition to an identified asset are scheduled to be recorded locally. If no other assets are scheduled and thus no scheduling conflicts exist, process <NUM> goes to step <NUM> to locally record the selected multimedia asset and process <NUM> ends at step <NUM>.

Conversely, at step <NUM>, if it is determined that other multimedia assets are scheduled for local recording, process <NUM> moves to step <NUM> and checks the scheduled recording times/dates for the other assets. <NUM>, if it is determined that the scheduled recording time for the various multimedia assets are not in conflict with each other, process <NUM> moves to step <NUM> and the multimedia assets are recorded at their scheduled times. Conversely, at step <NUM> if it is determined that a scheduling conflict exists, then process <NUM> moves to step <NUM> to attempt to change the recording time(s) so as to eliminate the conflict. If the system is able to resolve the conflict, the multimedia assets are recorded at the changed time(s) at step <NUM>. Process <NUM> ends at step <NUM>. If the conflict cannot be resolved, the user may be notified and asked to intervene.

Note that the multimedia assets may be distribution controlled, in which case recording and copying of the multimedia assets may be restricted. For example, a "broadcast" flag may be set in the asset to indicate that the content can not be copied. Alternatively, a "never copy" flag may be set, or a "play once" flag may be reset in digital rights management protocols such as IEEE <NUM>5C. More information on IEEE <NUM>5C can be found in "Digital Transmission Content Protection Specification Revision <NUM> (Informational Version)," February <NUM>, <NUM>, available from Digital Transmission Licensing Administrator (DTLA), <NUM> B Cochrane Circle, Morgan Hill, CA <NUM> (USA), It should be understood that certain embodiments of the present invention will include steps of checking and considering, in various implementation algorithms, the implications of such distribution and copy protections as well as security, encryption, and access control considerations.

Claim 1:
A method for setting an alert condition for which a user is alerted to status changes of multimedia assets, the method comprising:
setting an alert condition and entering an alert period for alerting a user of status changes of multimedia assets, wherein the alert period is a period in which the user wishes to be notified of a status change;
identifying multimedia assets to be monitored for status changes in accordance with the alert condition (<NUM>);
monitoring the identified multimedia assets for status changes in accordance with the alert condition (<NUM>); and
notifying the user of a status change of a monitored multimedia asset (<NUM>).