WO2008134373A1 - Virtual channels - Google Patents

Virtual channels

Info

Publication number
WO2008134373A1
WO2008134373A1 PCT/US2008/061307 US2008061307W WO2008134373A1 WO 2008134373 A1 WO2008134373 A1 WO 2008134373A1 US 2008061307 W US2008061307 W US 2008061307W WO 2008134373 A1 WO2008134373 A1 WO 2008134373A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
user
time
set
events
method
Prior art date
Application number
PCT/US2008/061307
Other languages
French (fr)
Inventor
David A. Brown
Manish Gordhan Patel
John Blackburn
Neha Gupta
Richard Carl Gossweiler
Mehran Sahami
Thomas H. Taylor
Daniel John Zigmond
Original Assignee
Google Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
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    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/30Information retrieval; Database structures therefor ; File system structures therefor
    • G06F17/30861Retrieval from the Internet, e.g. browsers
    • G06F17/30864Retrieval from the Internet, e.g. browsers by querying, e.g. search engines or meta-search engines, crawling techniques, push systems
    • G06F17/30867Retrieval from the Internet, e.g. browsers by querying, e.g. search engines or meta-search engines, crawling techniques, push systems with filtering and personalisation
    • HELECTRICITY
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    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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    • H04N21/234Processing of video elementary streams, e.g. splicing of content streams, manipulating MPEG-4 scene graphs
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    • H04N21/47214End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
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    • H04N21/60Selective content distribution, e.g. interactive television, VOD [Video On Demand] using Network structure or processes specifically adapted for video distribution between server and client or between remote clients; Control signaling specific to video distribution between clients, server and network components, e.g. to video encoder or decoder; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
    • H04N21/65Transmission of management data between client and server
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Abstract

A method and system for providing listings of multimedia events and for allowing a user to create virtual channels from the listings is described. The user can specify a headend or zip code and enter a search query to find multimedia events that are of interest to the user. In response, the system provides a list of multimedia events as the results of the user's search query. If the user so desires, the user can create a virtual channel based on the search results, according to certain embodiments of the invention.

Description

VIRTUAL CHANNELS

TECHNICAL FIELD

[0001] The disclosed embodiments relate generally to the presentation of scheduling information for multimedia events, and more specifically to aspects of creating virtual channels based on selected search results related to the scheduling information for multimedia events.

BACKGROUND

[0002] Currently, multimedia events, such as television shows, are organized by channels. The major television networks dictate which show is to be broadcast at a particular time for a respective channel. Thus, a user must tune-in to a show of the user's choosing at the time of broadcast as dictated by the respective television network. If the user wishes to view all the scheduling information for a particular show, or for a set of shows selected by the user, the user must search through the channels provided by the television networks for all the showings or episodes of the show or shows that are of interest to the user.

BRIEF DESCRIPTION OF THE DRAWINGS

[0003] FIG. 1 is a block diagram illustrating an exemplary distributed computer system, according to certain embodiments of the invention. [0004] FIG. 2 is a high-level flowchart of a process for creating virtual channels, according to certain embodiments of the invention.

[0005] FIGs. 3A, 3B, 3C and 3D, each illustrates a schematic screenshot of a web browser presenting a web page that displays information on virtual channels, according to certain embodiments of the invention. [0006] FIG. 3E is a schematic screenshot of a web browser presenting a web page that displays published virtual channels, according to certain embodiments of the invention.

[0007] FIGs. 4A, 4B, 4C and 4D illustrate a relevance bar, according to certain embodiments of the invention.

[0008] FIG. 5 is a block diagram illustrating a client, according to certain embodiments of the invention.

[0009] FIG. 6 is a block diagram of an exemplary server, according to certain embodiments of the invention. [0010] FIG. 7 is a block diagram of a database structure for storing information on virtual channels, according to certain embodiments of the invention. [0011] FIG. 8 is a block diagram of a database structure, according to certain embodiments of the invention.

DESCRIPTION OF EMBODIMENTS

[0012] Methods, systems, user interfaces, and other aspects of the invention are described. Reference will be made to certain embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the embodiments, it will be understood that it is not intended to limit the invention to these particular embodiments alone. On the contrary, the invention is intended to cover alternatives, modifications and equivalents that are within the spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense. [0013] Moreover, in the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that the invention may be practiced without these particular details. In other instances, methods, procedures, components, and networks that are well known to those of ordinary skill in the art are not described in detail to avoid obscuring aspects of the present invention.

[0014] According to certain embodiments of the invention, a computing system provides listings of multimedia events, including scheduled time of broadcast to a user. Non-limiting examples of multimedia events include television shows, radio shows, video shows, sporting events and motion pictures (e.g., sporting events and motion pictures that are broadcast by TV, cable, satellite, video-on-demand, etc.). Multimedia events may include user created content, and/or content produced or created by content broadcasting and publishing companies, and/or content from a variety of other content providers. Other examples of multimedia events include events referenced by metadata site summaries, and multimedia messaging services. Examples of multimedia events referenced by metadata site summaries are podcasts, ESPN real time sports feeds, etc. Metadata site summaries provide information such as summaries of a multimedia show, original airtime, re-broadcast airtime, genre, show ratings, actor lists, images of actors, links to the referenced multimedia show, links to one or more trailers of the referenced multimedia show, etc. Multimedia messaging services provide information such as title, description, authorship, airtime, links to the referenced multimedia show, links to one or more trailers of the referenced multimedia show, etc. [0015] For example, the user can specify a headend (name of content provider) and/or a zip code (or other geographic location identifier) and enter one or more search strings. In response, the system performs a search, using the entered search strings, on the listings of multimedia events corresponding to the specified headend and/or zip code. According to one feature of certain embodiments, the search results are presented to the user as an ordered list based on the scheduled time of broadcast. The user, if so desired, can select all or some of the listings to create a virtual channel of the selected listings.

[0016] FIG. 1 is a block diagram illustrating an exemplary distributed computer system 100, according to certain embodiments of the invention. In FIG. 1 , system 100 may include one or more client computers 102, communication network(s) 104 and a multimedia events server 106. Client computers 102 can be any of a number of computing devices (e.g., Internet kiosk, personal digital assistant, cell phone, gaming device, desktop computer, laptop computer, handheld computer, or combinations thereof) used to enable the activities described below. Client computer(s) 102 is also referred to herein as client(s) or client device(s). Client 102 includes webpage(s) 114 and a client application 112 that permits the user to view web pages 114 or other documents of information. Further, client application 112 may permit the user to interact with client 102 and/or network resources to perform one or more tasks. For example, client application 112 may be a web browser (e.g., Firefox, Internet Explorer, etc.) or other type of application that permits the user to search for, browse, and/or use resources, such as web pages 114, on client 102 and/or accessible via communication network 104. One embodiment of client 102 is described in greater detail herein with reference to FIG. 5. Client 102 is connected to multimedia events server 106 via communication network(s) 104. Multimedia events server 106 includes a network interface 108 and a multimedia events database 110. In some embodiments, multimedia events server 106 is an Internet server. Alternatively, if multimedia events server 106 is used within an intranet, it may be an intranet server. In some embodiments, fewer and/or additional modules, functions or databases are included in multimedia events server 106. One embodiment of multimedia events server 106 is described in greater detail herein with reference to FIG. 6.

[0017] The communication network 104 may be the Internet, but may also be any local area network (LAN), a metropolitan area network, a wide area network (WAN), such as an intranet, an extranet, or the Internet, or any combination of such networks. It is sufficient that the communication network 104 provides communication capability between the clients 102 and the multimedia events server 106. In some embodiments, the communication network 104 uses HyperText Transport Protocol (HTTP) to transport information using the Transmission Control Protocol/Internet Protocol (TCP/IP). The HTTP permits client computers to access various resources available via the communication network 104. The various embodiments of the invention, however, are not limited to the use of any particular protocol. The term "resource" as used throughout this specification refers to any document, object, information item, set of information, or service that is accessible via a Uniform Resource Locator (URL) and can be, for example, a web page, a text or word processing document, an email message, a transcribed voice message, a database, an image, a computational object, or other type of file.

[0018] Network interface 108 facilitates communication between multimedia events server 106 and communication network 104. Network interface 108 allows for the transfer of information from multimedia events server 106 to the communication network 104 to be presented by client application 112 of client 102. Multimedia events database 110 stores information on multimedia events.

[0019] Notwithstanding the discrete blocks in FIG. 1 , the figure is intended to be a functional description of some embodiments of the invention rather than a structural description of functional elements in the embodiments. One of ordinary skill in the art will recognize that an actual implementation might have the functional elements grouped or split among various components. Moreover, one or more of the blocks in FIG. 1 may be implemented on one or more servers designed to provide the described functionality. Although the description herein refers to certain features implemented in client 102 and certain features implemented in multimedia events server 106, the embodiments of the invention are not limited to such distinctions. For example, features described herein as being part of multimedia events server 106 could be implemented in whole or in part in client 102, and vice versa.

[0020] FIG. 2 is a high-level flowchart of a process 200 for creating virtual channels, according to certain embodiments. Process 200 may comprise operations that occur simultaneously. For purposes of explanation, assume that a user initiates a search for multimedia events by entering a search query using client application 112 of client 102. The user may specify a headend, zip code and/or a time period within which the scheduled broadcast of the multimedia content is to occur. A set of time-bounded multimedia events from one or more multimedia events databases is identified based on the specified headend, zip code and/or time period (202). If the search query does not specify a headend, a set of time-bounded multimedia events may be identified based on: one or more headends associated with the zip code specified by the user, a zip code previously used by the user or a zip code associated with the user's account; a randomly selected headend, all headends, or a majority of headends. Similarly, if the search query does not specify a zip code (or other geographic designation), a set of time-bounded multimedia events may be identified based on: a zip code previously provided by the user, a zip code that is associated with the user's account, or a randomly selected zip code. In addition, if the search query does not specify a time period, a set of time-bounded multimedia events may be identified based on a pre-selected default value for the time period (e.g., the time period between "now" and the period ending 7 days from now).

[0021] A search is performed on the identified set of time-bounded multimedia events based on the search query currently entered by the user (204). The search results are presented to the user ordered by relevance, according to certain embodiments (206). For example, the search results may be presented as a list. Alternately, or in addition, the search results may be presented on a relevance bar, as described in greater detail herein with reference to FIGs. 3A-3E, and FIGs. 4A- 4D, respectively. A new virtual channel is created for the user if the user initiates an operation to create a new channel based on time-bounded multimedia events selected by the user from the search results (208). Further, searches are performed on the identified set of time-bounded multimedia events based on the user's respective saved queries associated with the user's existing virtual channels, if any (210). In other words, the user may have previously created one or more virtual channels. The information associated with the virtual channels are updated by performing searches on the identified set of time-bounded multimedia events using the saved queries associated with the virtual channels. It may be necessary to identify other sets of time-bounded multimedia events from the multimedia events database before performing searches based on the user's respective saved queries associated with the user's existing virtual channels. For example, a new set of time- bounded multimedia events is identified for a given saved query of the user if the associated headend, and/or zip code, and/or time period is different than that which is currently specified by the user as described with reference to (202). The user's virtual channels including the newly created virtual channel are presented to the user (212). The virtual channels presented to the user correspond to a user selected day and time of scheduled broadcast for the multimedia events. The user may select the day and time using GUI selector as described in greater detail herein with reference to FIGs. 4A-4C. If the user wishes to view virtual channel information corresponding to a new time period, such channel information is retrieved and presented to the user. If the user initiates a new search query (214), a new search is performed (204). If along with the new search query, the user initiates changes to the headend, and/or zip code, it may be necessary to identify additional sets of time-bounded multimedia events (202) before performing the new search. Process 200 ends if the user does not initiate any changes or a new search (216).

[0022] FIG. 3A is a schematic screenshot of the graphical user interface (GUI)

300 of a web browser, presenting a web page 302 that displays information on virtual channels, according to certain embodiments of the invention. Web page 302 may also be referred to as a channel search page. Web browser can be any type of browser that enables a user to display and interact with web pages or other documents or information. The GUI 300 of web browser includes a URL field 304 for entering the URL of any web page that a user wishes to display, as well as for displaying the URL of the web page currently being displayed. As illustrated in this figure, the web browser's GUI 300 displays an exemplary web page 302. Web page 302 comprises a search field 306a with: 1 ) a corresponding search button 307 for initiating a search for information corresponding to the search query entered in the search field 306a, 2) a zip code indicator 306b for showing the zip code for which the search is performed, and 3) a "change location" link 306c for enabling the user to specify a different zip code for performing the search. According to some embodiments, "change location" link 306c may also allow a user to specify a headend in addition to specifying the zip code. As an example and for purposes of explanation, the user may specify zip code 94086 using link 306c, and may enter the search query, "Simpsons," in search field 306a.

[0023] Web page 302 further comprises broadcast schedule 308 for the user's existing virtual channels, a results panel 310, a calendar 312, and a relevance bar 316. Continuing with the above example, assume that the search for scheduled multimedia events using search query "Simpsons" produces search results as illustrated in results panel 310. Results panel 310 shows a subset of the results of the search query. The user can see more results by selecting the NEXT button 310b. The user can return to the previous results by selecting the PREV button 310a. The search results may be displayed in a different manner, according to certain embodiments. For example, relevance bar 316 displays the days of the week and displays the set of search results as rectangular bars 316b on the relevance bar, according to certain embodiments. According to certain embodiments, relevance bar 316 includes a slider 316a for selecting a date for which the events are shown in broadcast schedule 308. The relevance bar is described in greater detail herein in reference to FIGs. 4A, 4B, 4C and 4D. [0024] The broadcast schedule 308 for the user's existing virtual channels may be a grid representing scheduled multimedia events being broadcast on a particular day. According to certain embodiments, the search queries corresponding to the user's existing virtual channels are re-executed in order to identify the relevant time-bounded multimedia events for rendering on broadcast schedule 308. As illustrated in FIG. 3A, broadcast schedule 308 for the user's existing virtual channels is a grid having rows for displaying multimedia events scheduled for broadcast on virtual channels 308a, 308b, 308c, and broadcast channels (from third party sources) 311a, 311 b and 311 c. The displayed virtual channels 308 may be conveniently deleted by clicking on the delete button 309 next to the virtual channel title. Further, the user can manage the user's current collection of virtual channels and broadcast channels (also herein called television channels) by selecting link 322. For example, the user may delete one or more of the user's virtual channels, rename the user's virtual channels, and/or rearrange the order of appearance of the virtual channels and broadcast channels. For example, the virtual channels (or the virtual channels and broadcast channels) can be arranged alphabetically, in user specified order, based on genre, or based on relevance to a search query (e.g., channels are listed in accordance with a score based on the number and quality of matching results).

[0025] According to certain embodiments, the user may select one or more virtual channels from the user's current collection of virtual channels for publication using link 322. Published virtual channels are described in greater detail herein with reference to FIG. 3E. According to certain embodiments, the user may automate the recording of multimedia events in a given virtual channel using link 322. For example, relevant recording instructions may be sent to a recording device (e.g., a digital video recorder, or other storage device) associated with client 102. [0026] In FIG. 3A, the information shown in broadcast schedule 308, results panel 310 and relevance bar 316 includes basic information (also referred to as "low resolution data") associated with the multimedia events. For example, the low resolution data associated with broadcast schedule 308 can include channel names and the number of shows or episodes scheduled for broadcast in a given time period (for a particular channel or virtual channel).

[0027] A calendar 312 displays a grid representing a range of dates. The date of the time-bounded multimedia events shown in broadcast schedule 308 is indicated by a highlighted date 314 in the calendar 312. The date of the events shown in broadcast schedule 308 for the user's existing virtual channels is indicated by a highlighted date 314 in the calendar 312. The date 314 may be highlighted by surrounding it with a box, as shown in FIG. 3A, or the text of the date may be displayed in a different color than the other dates, or the "whitespace" around the date may be a different color than the whitespace around the other dates in the calendar 312. In other embodiments, the calendar may also be represented in a different manner. For example, the calendar may be represented by a horizontal bar.

[0028] If the user wishes to add the current search results as a new virtual channel in the user's collection of virtual channels, the user may initiate such an action by selecting option 318 as shown in FIG. 3A. According to certain embodiments, the user may use a portion of the current search results by selecting multimedia events from the current search results for constructing a new virtual channel. The user may also provide a name for the newly created virtual channel, according to certain embodiments. For purposes of explanation, assume that the user adds the search results corresponding to the search query "Simpsons" as a new virtual channel to the user's collection of virtual channels. FIG. 3B shows that "The Simpsons" is added to broadcast schedule 308 as a new virtual channel 308g.

[0029] If more than one multimedia event is broadcast at the same time, broadcast schedule 308 indicates the number of multimedia events that are scheduled for broadcast in a given time slot, according to certain embodiments. For example, FIG. 3B shows that "The Simpsons" virtual channel 308g has two multimedia events that are scheduled for broadcast at 9:00 p.m. According to certain embodiments, the user may obtain additional information (e.g., show or episode names) on the multimedia events that are scheduled for broadcast in a given time slot by hovering the user's cursor over the time slot on broadcast schedule 308. Such additional information may be referred to as "medium resolution data." For example, FIG. 3C shows an iframe 322 that provides some medium resolution information (e.g., show names and episode names) on the multimedia events that are scheduled for broadcast in the time slot over which the user's cursor is hovering (cursor not shown in FIG. 3C). If, for example, the number of multimedia events is too numerous to be displayed all at once in iframe 342 (also called an inline frame), the user may obtain a longer list of the multimedia events by selecting the "more" option 342a as shown in FIG. 3C. According to certain embodiments, the user may obtain more detailed information on any one of the multimedia events displayed in iframe 342 by selecting a link 342b associated with the particular multimedia event as shown in FIG. 3C. In some embodiments, the iframe 342 is closed and the display of the information in the iframe ceases when the user closes the iframe 342 (e.g., by clicking on a close frame icon) or when the user clicks on the landing page or search results page that is partially obscured by the iframe. [0030] According to certain embodiments, when the user selects a link in results panel 310 or in an iframe on broadcast schedule 308, more detailed information (also referred to as "high resolution data") on the multimedia event is displayed. For example, FIG. 3D shows detailed information displayed in an iframe 326 when the user selects the link 342b (shown in FIG. 3C) associated with the particular multimedia event. For purposes of explanation, assume that the user wishes to obtain more information on the multimedia event, "KTVU-002 The Simpsons: Marge on the Lam" as shown in FIG. 3C and selects link 342a. According to certain embodiments, by selecting link 342b for "Marge on the Lam", the user is presented with more detailed information as shown in sample iframe 326 of FIG. 3D. As an example, the detailed information can include a description of the particular episode, information on the stars, director, writer, etc., associated with the multimedia event. A database structure for storing the low resolution data, medium resolution data and the high resolution data associated with multimedia events is described below with reference to FIG. 8, according to certain embodiments.

[0031] If the user wishes to add virtual channels that are published by other users/sources, the user can select link 320 (see bottom of FIG. 3C) to access a web page that publishes virtual channels, according to certain embodiments. Published virtual channels are described in greater detail herein with reference to FIG. 3E. According to certain embodiments, the user can create multimedia shows for broadcast. For example, the user may be associated with a media broadcast company. The user can create a multimedia show that is scheduled for broadcast at specific periods of time. For example, the user can create multimedia shows for broadcast through links provided in RSS feeds or through podcasts. Thus, such a user may choose to publish a channel comprising multimedia shows created by the user. As another example, the user may send information to a channel-publishing service. As an example, the user may use the Manage Channels feature, as previously described with reference to FIG. 3A, for publishing the user's virtual channels.

[0032] In addition to enabling a user to create virtual channels as described above, the user is provided the option of adding virtual channels that have been created by other users/sources. FIG. 3E is a schematic screenshot of a web browser GUI 300 presenting a web page 362 that displays published virtual channels, according to certain embodiments of the invention. Web browser GUI 300 comprises a URL field 364 for entering the URL of any web page that a user wishes to display, as well as for displaying the URL of the web page currently being displayed. As illustrated in this figure, the web browser GUI 300 displays an exemplary web page 362 for enabling the user to view and/or select virtual channels that have been created by other users and/or sources as well as broadcast channels from third party sources. Web page 362 comprises a search field 366 with a corresponding search button 367 for initiating a search for virtual channels (or a search for virtual channels and broadcast channels) corresponding to the search query entered in the search field 366. Web page 362 further comprises a panel of published channels 374 from which the user may select, if so desired, one or more channels for adding to the user's collection of virtual channels. A published channel (which may be a virtual channel or a broadcast channel) may optionally be associated with an icon 376. More published channels, if any, may be displayed by selecting the "more" button 364. Web page 362 also shows the user's current collection 372 of virtual channels, and a "Manage Channel" action element 368 for enabling the user to manage the user's collection of virtual channels. The user can select a channel from panel 374 for adding to the user's collection of virtual channels by initiating an "add channel" action element such as the "Add channels to your channel search page" element 369. One embodiment of a channel search page is previously described herein with reference to FIG. 3A (see web page or channel search page 302 of FIG. 3A).

[0033] FIG. 4A illustrates a relevance bar 400, according to certain embodiments of the invention. As previously explained, when a user's enters a search query for multimedia events, the search results can be presented to the user as a list (e.g., results panel 310 of FIG. 3A) and/or presented on a relevance bar (e.g., relevance bar 316 of FIG. 3A). Such a relevance bar is described in greater detail with reference to FIG. 4A. Relevance bar 400 of FIG. 4A displays the days of the week along a horizontal axis 406 and displays the set of search results of multimedia events as objects 402, according to certain embodiments. As an example, objects 402 may be rectangular bars. The objects 402 may have display attributes, such as shape, color, size, etc., which indicate the relevance of the objects (i.e., the relevance of the scheduled multimedia events represented by the objects 402) to the search query.

[0034] According to certain embodiments, multiple time-bounded multimedia events that are associated with a similar date and time can be depicted, for example, as stacked rectangular bars as shown in FIG. 4A. As another non-limiting example, multiple time-bounded multimedia events that are associated with a similar date and time can be depicted as a rectangular bar that is relatively taller than other rectangular bars that represent a fewer number of time-bounded multimedia events. As yet another non-limiting example, multiple multimedia events may be depicted using an object of a shape that is different from one representing a single multimedia event. According to certain other embodiments, the vertical axis of the relevance bar may represent a measure of importance or relevance of a particular multimedia event. For example, the height of a rectangular bar may be proportional to the importance or relevance of the particular multimedia event that the rectangular bar represents. As another example, the physical attributes of the objects representing a respective multimedia event may be associated with varying levels of importance or relevance. For example, on object representing a multimedia event of relatively high importance may light-up, flash or blink to attract the user's attention. As yet another example, multimedia events that are related to the multimedia events of the search results are represented as objects of a shape and/or color that is different from ones representing multimedia events of the search results (i.e., multimedia events that match or satisfy a search query). Examples of related multimedia events include multimedia events that have content that is similar to the content of multimedia events from the search results.

[0035] According to certain embodiments, search results of multimedia events may be scored based on any combination of various factors such as the user's profile, results from a co-citation analysis, or anchor text analysis (e.g., analysis of text in or near links to the multimedia events) to determine related multimedia events. The user's profile may be based on user specified preferences. Alternately, the user's profile may be generated by the system based on the user's online behavior. As another example, a group profile may be used as the user's profile. A group profile is a general profile for a group of users of which the user is a member. [0036] Further, relevance bar 400 may include a slider 404 that slides along the time axis. The position of the slider on the time axis is associated with a date and time 408. According to certain embodiments, when the user moves the slider to a new position along the time axis, the broadcast schedule 308 (see FIG. 3A, for example) is re-rendered to present new broadcast information corresponding to the date and time associated with the new position of the slider along the time axis of the relevance bar. Alternately, instead of slider 404, the relevance bar 400 may be responsive to the hovering of a mouse or other pointer over a portion of the relevance bar, and/or may be responsive to mouse clicks or other select signals on a user selected portion of the relevance bar.

[0037] According to certain embodiments, when the user's mouse brushes over an object 402 (in the relevance bar 400) representing a respective multimedia event, an iframe 410 is presented to the user as shown on relevance bar 420 of FIG. 4B. According to certain embodiments, if the user selects a link (e.g., by clicking on the link) that is associated with a respective multimedia event in the iframe 410, the user is presented with another iframe that provides more detailed information on the selected multimedia event. For example, assume that the user clicks on the link for the TV show, "Simpsons- Marge on the lam" shown in iframe 410 as shown in FIG. 4B. As a result, iframe 412 on relevance bar 420 as shown in FIG. 4C is presented to the user. As a non-limiting example, iframe 412 shows detailed information on the TV show, "Simpsons- Marge on the lam" that is scheduled to broadcast at 9 p.m., Monday July 14.

[0038] According to some embodiments, the horizontal axis of the relevance bar may represent units of relevance. For example, FIG. 4D shows that the horizontal axis 416 of the relevance bar 460 represents units of relevance. The objects 418 on relevance bar 460 are ordered by relevance on the horizontal axis.

[0039] FIG. 5 is a block diagram illustrating client 102, according to certain embodiments of the invention. Client 102 includes one or more processing units (CPUs) 502, one or more network or other communication interfaces 504, memory 506, and one or more communication buses 508 for interconnecting these components. The communication buses 508 may include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. Client 102 may include a user interface 510, for instance a display 512 and a keyboard 514. Memory 506 includes high-speed random access memory, such as DRAM, SRAM, DDR RAM or other random access solid state memory devices, and may include non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other nonvolatile solid state storage devices. Memory 506 may optionally include one or more storage devices remotely located from the CPU(s) 502. In some embodiments, memory 506 stores the following programs, modules and data structures, or a subset thereof: • an operating system 516 that includes procedures for handling various basic system services and for performing hardware dependent tasks; • a network communication module 518 that is used for connecting the client 102 to other computers or devices, such as recording device 538, via the one or more communication or network interfaces 504 and one or more communication networks, such as the Internet, other wide area networks, local area networks, metropolitan area networks, and so on; • a client application 112 (e.g., a browser application) that permits a user to interact with the client 102 as described above;

• one or more web pages 114 that may be displayed by the client application 112; • a local database 520 for storing information, such as multimedia information and virtual channel data; and

• a browser extension 524 for managing and displaying the information in the local database.

[0040] In some embodiments, browser extension 524 for displaying multimedia information includes a database manager 526, a display module 528 and a search module 530. Database manager 526 handles information stored on local database 520. Search module 530 is for conveying a search query entered by a user to a search engine or other online service, such as the server 106 described elsewhere in this document.

[0041] The display module 528 facilitates the display of multimedia information, as described above with reference to FIGs. 3A-3E, for example. In some embodiments, the display module includes a results panel display module 532, a virtual channel display module 534, and a relevance bar display module 536.

[0042] The virtual channel display module 534 determines how the virtual channels are displayed on the web page. The results panel display module 532 and the relevance bar display module 536 display the results of a search query associated with multimedia events. [0043] FIG. 6 is a block diagram of an exemplary server 106 in accordance with some embodiments of the present invention. The server 106 typically includes one or more processing units (CPUs) 602, one or more network or other communication interfaces 604, memory 606, and one or more communication buses 608 for interconnecting these components. The communication buses 608 may include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. The server 106 optionally may include a user interface (not shown). Memory 606 includes high-speed random access memory, such as DRAM, SRAM, DDR RAM or other random access solid state storage devices, and may include non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid state storage devices. Memory 606 may optionally include one or more storage devices remotely located from the CPU(s) 602. In some embodiments, memory 606 stores the following programs, modules, and data structures, or a subset thereof:

• an operating system 610 that includes procedures for handling various basic system services and for performing hardware dependent tasks;

• a network communication module 612 that is used for connecting the server 106 to other computers via the one or more communication or network interfaces 604 and one or more communication networks, such as the

Internet, other wide are networks, local area networks, metropolitan area networks, and so on;

• a network interface 108;

• a multimedia events database 110; • a search module 614; and • an optional query server interface 616.

[0044] As described above, the network interface 108 facilitates communication between the server 106 and the communication network 104 and allows for the transfer of information from the server 106 to the communication network 104 to be displayed on a client application 112 of a client 102. The multimedia events database 110 stores information associated with multimedia events. The server 106 may also comprise a search module 614 for conducting searches of the multimedia events database 110.

[0045] In some embodiments, memory 606 includes a query server interface 616. The query server interface 616 receives queries from another server, such as a query server, and returns search results to that other server. For instance, a query server may direct a search query from a user to multiple databases, including the multimedia events database 110, and then send search results from one or more of those databases to the user.

[0046] Each of the above identified computer software elements in Figures 5 and 6 may be stored in one or more of the previously mentioned memory devices, and corresponds to a set of instructions for performing a function described above. The above-identified modules or programs (i.e., sets of instructions) need not be implemented as separate software programs, procedures or modules, and thus various subsets of these modules may be combined or otherwise rearranged in various embodiments. In some embodiments, memory 506 and 606 may store a subset of the modules and data structures identified herein. Furthermore memory 506 and 606 may store additional modules and data structures not described herein. [0047] Although Figures 5 and 6 show, respectively, a client 102 and a server

106, the figures are intended more as functional descriptions of the various features which may be present in a client and set of servers than as a structural schematic of the embodiments therein. In practice, and as recognized by those of ordinary skill in the art, items shown separately could be combined and come items could be separated. For example, some items shown separately in Figure 6 could be implemented on a single server and single items could be implemented by one or more servers. The actual number of server used to implement a server 106 and how features are allocated among them will vary from one implementation to another, and may depend in part on the amount of data traffic that the system must handle during peak usage periods as well as during average usage periods.

[0048] FIG. 7 is a block diagram of a database structure 700 for storing information on virtual channels, according to certain embodiments of the invention. In some embodiments, database structure 700 applies to the multimedia events database 110 of the server 106. However, in some other embodiments, database structure 700 may also apply to the local database 520 of a respective client 102. One or more functions associated with managing and/or displaying multimedia events information may be called upon to acquire information from database structure 700. Database structure 700 includes storage of information for channel(s) 702. Channel 702 may include information for a given virtual channel such as name 704 of the virtual channel, ID 706, creation date 708, the search parameters 710 that produced search results of multimedia events for creating the virtual channel, zip code 712, headend 713 and icon 714. Zip code 712 is the zip code previously specified by the user. Headend 713 is the headend previously specified by the user. As described with reference to FIG. 2 and FIG. 3A, the user can specify a zip code before the user enters search parameters 710 that produce search results of multimedia events for creating a given virtual channel. Icon information 714 may be associated with a given virtual channel as described herein with reference to icon 376 of FIG. 3E. Each of these types of information may be accessed by the server 106 for sending to a client 102 in response to a client request for information of that type.

[0049] FIG. 8 is a block diagram of a database structure 800 according to certain embodiments of the present invention. As a non-limiting example, database structure 800 may be used in either the server 106, or a respective client 102, or both. In one embodiment, multimedia events database 110 or local database 520 contains a set of virtual channel records 806. The data representing a virtual channel may be found in the database by the use of one or more display functions 804. For example, a respective display function may display a virtual channel by mapping channel identifier 706 to a channel record 806 in the database. A respective channel record comprises information on a set of multimedia events 808. A respective multimedia event in the set of multimedia events has corresponding low resolution event information 814, medium resolution event information 816, and high resolution event information 818, according to certain embodiments of the invention. As previously described, an example of low resolution information is the low resolution data associated with broadcast schedule 308 of FIG. 3A, which can include channel names and the number of shows or episodes for a given time of broadcast. An example of medium resolution information is the additional information (e.g., show or episode name) on the multimedia events that can be obtained by hovering the user's cursor over the time slot on broadcast schedule 308 as shown in FIG. 3A. An example of high resolution information is illustrated by FIG. 3D that shows detailed information associated with high resolution data in an iframe 326 when the user selects the link 342b (shown in FIG. 3C) associated with the particular multimedia event. While some events in the database may have all three sets of information, it is possible that other events in the database will be devoid of high resolution information 818, or even medium resolution information 816. The fetching and pre-fetching of low, medium and high resolution information is discussed in co-pending U.S. Patent Application No. 11/618,640, filed December 29, 2006, "System and Method for Displaying Multimedia Events Scheduling Information," which is hereby incorporated by reference.

[0050] In the foregoing specification, embodiments of the invention have been described with reference to numerous specific details that may vary from implementation to implementation.

Claims

We Claim:
1. A method in a computing system, the method comprising: identifying a set of time-bounded multimedia events; executing a search submitted by a user on the identified set of time-bounded multimedia events to produce a set of search results ordered based on relevance; and creating one or more virtual channels comprising time-bounded multimedia events that are selected by the user from the set of search results.
2. The method of Claim 1 , further comprising sending information associated with the one or more created virtual channels to a client device for presentation in a grid having a first axis corresponding to units of time and a second axis.
3. The method of Claim 1 , wherein the time-bounded multimedia events include one or more of a group consisting of: television shows, radio shows, video shows, sporting events, motion pictures, and events referenced by metadata site summaries, and events referenced by multimedia messaging services.
4. The method of Claim 1 , further comprising publishing respective virtual channels selected by the user for publication.
5. The method of Claim 1 , wherein at least one time-bounded multimedia event includes content created by the user.
6. The method of Claim 1 , further comprising scheduling for recording one or more time-bounded multimedia events.
7. The method of Claim 6, wherein scheduling for recording includes sending commands to a recording device.
8. The method of Claim 1 , further comprising sending to a client device a first set of results that satisfy search terms of the user and a second set of results that are related to the first set of results.
9. The method of Claim 8, wherein the second set of results is based on content similarity when compared to content associated with the first set of results.
10. The method of Claim 8, wherein the second set of results is based on a user profile of the user.
11. The method of Claim 8, wherein the second set of results is based on a group profile of a group of which the user is a member.
12. The method of Claim 2, further comprising sending information related to the user's existing virtual channels for presentation in the grid.
13. The method of Claim 1 , further comprising performing one or more operations on the virtual channels wherein the one or more operations is selected from a group consisting of a delete operation, an add operation, and a re-arrange operation.
14. The method of Claim 1 , further comprising arranging a list of the virtual channels in accordance with any one of: arranging alphabetically, arranging based on a user-specified order, arranging based on genre, and arranging based on relevance to a search query.
15. A computer program product embodied on a computer readable medium, the computer program product comprising one or more computer programs that are stored on the computer readable medium and that are executable by a computer so as to perform a process, the one or more computer programs of the computer program product comprising: instructions for identifying a set of time-bounded multimedia events; instructions for executing a search submitted by a user on the identified set of time-bounded multimedia events to produce a set of search results ordered based on relevance; and instructions for creating one or more virtual channels comprising time- bounded multimedia events that are selected by the user from the set of search results.
16. A computer-implemented method, the method comprising: at a client computer or device, presenting information representing a plurality of subsets of time-bounded multimedia events as a plurality of rows on a grid having a first axis and a second axis, the first axis corresponding to units of time; wherein at least one row of the plurality of rows displays time-bounded multimedia events in a virtual channel that corresponds to a user- specified query, wherein the displayed time-bounded multimedia events in the virtual channel comprise search results for the user- specified query corresponding to the virtual channel.
17. The method of Claim 16, wherein at least one row of the plurality of rows displays time-bounded multimedia events in a broadcast channel.
18. The method of Claim 16, wherein the time-bounded multimedia events include one or more of a group consisting of: television shows, radio shows, video shows, sporting events, motion pictures, and events referenced by metadata site summaries, and events referenced by multimedia messaging services.
19. The method of Claim 16, further comprising presenting in the row corresponding to the virtual channel a first set of results that satisfy search terms in the user-specified query and a second set of results that are related to the first set of results.
20. The method of Claim 19, wherein the second set of results is based on content similarity when compared to content associated with the first set of results.
21. The method of Claim 19, wherein the second set of results is based on a user profile of the user.
22. The method of Claim 19, wherein the second set of results is based on a group profile of a group of which the user is a member.
23. The method of Claim 16, further comprising presenting an iframe for displaying medium resolution data in response to a user action on the at least one row associated with the virtual channel.
24. The method of Claim 16, further comprising presenting an iframe for displaying high resolution data in response to a user action on the at least one row associated with the virtual channel.
25. The method of Claim 16, further comprising presenting information on published virtual channels that the user can select for inclusion in user's collection of virtual channels.
26. The method of Claim 16, further comprising presenting a user interface for managing user's collection of virtual channels.
27. A server system, comprising: one or more processors; memory coupled to the one or more processors; and one or more programs stored in the memory and executable by the one or more processors, the one or more programs including: instructions for identifying a set of time-bounded multimedia events; instructions for executing a search submitted by a user on the identified set of time-bounded multimedia events to produce a set of search results ordered based on relevance; and instructions for creating one or more virtual channels comprising time- bounded multimedia events that are selected by the user from the set of search results.
28. The server system of Claim 27, including instructions for sending information associated with the one or more created virtual channels to a client device for presentation in a grid having a first axis corresponding to units of time and a second axis.
29. The server system of Claim 27, wherein the time-bounded multimedia events include one or more of a group consisting of: television shows, radio shows, video shows, sporting events, motion pictures, and events referenced by metadata site summaries, and events referenced by multimedia messaging services.
30. The server system of Claim 27, including instructions for publishing respective virtual channels selected by the user for publication.
31. The server system of Claim 27, wherein at least one time-bounded multimedia event in the set of search results includes content created by the user.
32. A client system, comprising: one or more processors; memory coupled to the one or more processors; and one or more programs stored in the memory and executable by the one or more processors, the one or more programs including: instructions for presenting information representing a plurality of subsets of time-bounded multimedia events as a plurality of rows on a grid having a first axis and a second axis, the first axis corresponding to units of time; wherein at least one row of the plurality of rows displays time-bounded multimedia events in a virtual channel that corresponds to a user- specified query, wherein the displayed time-bounded multimedia events in the virtual channel comprise search results for the user- specified query corresponding to the virtual channel.
33. The client system of Claim 32, wherein at least one row of the plurality of rows displays time-bounded multimedia events in a broadcast channel.
34. The client system of Claim 32, wherein the time-bounded multimedia events include one or more of a group consisting of: television shows, radio shows, video shows, sporting events, motion pictures, and events referenced by metadata site summaries, and events referenced by multimedia messaging services.
35. The client system of Claim 32, further comprising presenting in the row corresponding to the virtual channel a first set of results that satisfy search terms in the user-specified query and a second set of results that are related to the first set of results.
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