Patent Application
20070240180
1. Field of the Invention
The present invention relates generally to satellite video systems, and in particular, to a method, apparatus, and article of manufacture for determining viewership of individual programs in a real-time environment.
2. Description of the Related Art
Satellite broadcasting of communications signals has become commonplace. Satellite distribution of commercial signals for use in television programming currently utilizes multiple feedhorns on a single Outdoor Unit (ODU) which supply signals to up to eight IRDs on separate cables from a multiswitch.
System 100 uses signals sent from Satellite A (SatA) 102, Satellite B (SatB) 104, and Satellite C (SatC) 106 that are directly broadcast to an Outdoor Unit (ODU) 108 that is typically attached to the outside of a house 110. ODU 108 receives these signals and sends the received signals to IRD 112, which decodes the signals and separates the signals into viewer channels, which are then passed to monitor 114 for viewing by a user. There can be more than one satellite transmitting from each orbital location and additional orbital locations without departing from the scope of the present invention.
Satellite uplink signals 116 are transmitted by one or more uplink facilities 118 to the satellites 102-106 that are typically in geosynchronous orbit. Satellites 102-106 amplify and rebroadcast the uplink signals 116, through transponders located on the satellite, as downlink signals 120. Depending on the satellite 102-106 antenna pattern, the downlink signals 120 are directed towards geographic areas for reception by the ODU 108.
Alternatively, uplink facilities 118 can send signals via cable 122 either in conjunction with uplink signals 116 or instead of uplink signals 116 to IRD 112, for display on monitor 114.
Each satellite 102-106 broadcasts downlink signals 120 in typically thirty-two (32) different frequencies, which are licensed to various users for broadcasting of programming, which can be audio, video, or data signals, or any combination. These signals are typically located in the Ku-band of frequencies, i.e., 11-18 GHz, or in the Ka-band of frequencies, i.e., 18-40 GHz, but typically 20-30 GHz.
As satellites 102-106 broadcast additional services and additional channels to viewers, viewers will like and expect to see programming on monitor 114 that relate to their specific needs and desires.
To minimize the limitations in the prior art, and to minimize other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a dynamic viewership rating system presented on a monitor. A system in accordance with the present invention comprises a plurality of broadcast programs, each broadcast program in the plurality of broadcast programs given a rating, the rating based on a current viewership of the plurality of broadcast programs within a geographical area, and a control bar; displayed on the monitor, wherein a command displayed on the control bar selects a screen for display on the monitor, the screen comprising information related to at least one of the ratings of the plurality of broadcast programs.
Such a system further optionally includes the current viewership being determined by callback information gathered from a plurality of receivers that are receiving the broadcast programs, the plurality of receivers being located in a second geographical area, the geographical area being a subset of the second geographical area, the second geographical area being determined by zip code or time zone, and a rating determined in a first time zone being used to predict a rating in a second time zone.
An apparatus in accordance with the present invention comprises a broadcast delivery system, comprising a transmitter and a receiver, a monitor, coupled to the receiver, for selectively displaying the plurality of broadcast programs, and a feedback system, coupled to the receiver, for determining a rating of at least one of the plurality of broadcast programs, the rating based on a current viewership of the plurality of broadcast programs within a geographical area.
Such an apparatus further optionally includes a control bar, displayed on the monitor, wherein a command displayed on the control bar selects a screen for display on the monitor, the screen comprising information related to at least one of the ratings of the plurality of broadcast programs, the broadcast delivery system being a satellite television delivery system, the information comprising a trend statistic for each of the plurality of broadcast programs, the statistics further comprising an indication of a number of other viewers that are viewing each of the plurality of broadcast programs, the current viewership being determined by callback information gathered from a plurality of receivers that are receiving the broadcast programs, the plurality of receivers being located in a second geographical area, the geographical area being a subset of the second geographical area, the second geographical area being determined by zip code, the second geographical area being determined by time zone, a rating determined in a first time zone being used to predict a rating in a second time zone, the feedback system being a telephone callback system, the statistics being accessed by a selection of a remote control command button the plurality of broadcast channels being presented by genre, and the selection of the remote control button reaching a different default genre based on a channel being viewed when the selection of the remote control button is made.
Other features and advantages are inherent in the system disclosed or will become apparent to those skilled in the art from the following detailed description and its accompanying drawings.
Referring now to the drawings in which like reference numbers represent corresponding parts throughout:
In the following description, reference is made to the accompanying drawings which form a part hereof, and which is shown, by way of illustration, several embodiments of the present invention. It is understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.
Overview
The present invention is a dynamic viewership rating system presented on a monitor. A system in accordance with the present invention comprises a plurality of broadcast programs, each broadcast program in the plurality of broadcast programs given a rating, the rating based on a current viewership of the plurality of broadcast programs, and a control bar; displayed on the monitor, wherein a command displayed on the control bar selects a screen for display on the monitor, the screen comprising information related to at least one of the broadcast programs in the plurality of broadcast programs.
Interactive Mosaic Channel Display Diagram
Interactive mosaic channel 200 is shown as being displayed on monitor 114. Within interactive mosaic channel 200, there are a number of video cells 202A-202F and a text box 204, also referred to as an On Screen Display (OSD) 204. Optionally, the interactive mosaic channel 200 further comprises a separate video cell 206, also called a “barker cell” 206, a background video 208, and a control bar 210. The video cells 202A-F optionally comprise a channel identification (channel ID) portion 212. Further, cursor 214 is also optionally included to allow for interaction with each of the video cells 202A-202F and barker cell 206.
The number of video cells 202A-F can change based on the number of video cells 202 A-F desired. As the number of video cells 202A-F increases, of course, there must be a reduction in the size of the video cells 202A-F to ensure that the video cells are differentiated on the monitor 114. As the number of video cells 202A-F decreases, the size of the video cells 202A-F can increase, since there is more space available on monitor 114 to display video cells 202A-F.
Further, the placement of video cells 202A-F, barker cell 206, text box 204, and control bar 210 is not limited to the positions on monitor 114 as shown in
As there are multiple video feeds and video cell 202A-F and barker cell 206 being presented, each video cell 202A-F and barker cell 206, as well as background video 208 and possibly control bar 210, have associated audio portions that can be played. Presenting more than one audio stream may be confusing; as such, it is typical that only one audio stream of information is presented at a given time. However, each of the video feeds may also have closed-captioning information associated with it, and selection of a closed-captioned presentation, rather than an audio presentation, can be performed as described herein.
Video Cells
Video cells 202A-F each comprise a separate viewer channel of programming. So for example, in an interactive mosaic channel that is focused on news programming, cell 1 could contain the video programming associated with the viewer channel of FOX News Channel, cell 2 could contain the video programming associated with the viewer channel of CNN, cell 3 could contain the video programming associated with the viewer channel of Headline News, cell 4 could contain the video programming associated with the viewer channel of MSNBC, cell 5 could contain the video programming associated with the viewer channel of The Weather Channel, and cell 6 could contain the video programming associated with the viewer channel of C-SPAN. The placement and video programming content for each video cell 202A-F can depend on a wide variety of factors, such as Nielsen ratings for a given channel, whether a given channel is available on a specific viewer's programming package, viewer channel number (lowest to highest or highest to lowest) or can be decided or changed based on programming that is present on one or more of the viewer channels available for the interactive mosaic channel. For example, and not by way of limitation, an important vote on the floor of the Senate may be taking place, and a decision can be made to change the placement of C-SPAN from video cell 202F to video cell 202A for a period of time. Changes in presentation for the interactive mosaic channel 200 are discussed below.
Within each of the video cells 202A-F is a channel identification (ID) box 212. Typically, the channel ID box 212 indicates to the viewer the moniker or name that is associated with the video feed being shown in that respective video cell 202A-F, and the viewer channel number associated with the video feed being shown in that respective video cell 202A-F. For example and not by way of limitation, in video cell 202A, which as described above, is showing the video feed for ESPN, channel ID box 212 would indicate “ESPN” as well as, optionally, a channel number, e.g., “206” to indicate to the viewer that the video feed being shown in video cell 202A is that of ESPN, and that the viewer is accustomed to seeing this full-monitor 114 video programming on viewer channel 206.
Other information may also appear in channel ID box 212, such as an indication that the video feed that is being presented in the associated video cell 202A-F is a “user favorite” channel, the channel ID box 212 may be presented in a different color or video texture to indicate that the video feed that is being presented in the associated video cell 202A-F is a channel that presents programming that adults may wish to block from their children's view or has closed-captioning available, etc. Many possibilities are available within the scope of the present invention to present various types of video information within channel ID box 212 for viewer selection and benefit. The channel ID box 212 may also appear without a video cell 202A-F for those video feeds that are channel blocked via parental control, or otherwise unavailable to a specific viewer because of the viewer's programming package or other reasons.
Text Box
Text box 204 contains textual information that is useful to the viewer, and this information can change depending on the viewer's selection of interactive services as described herein. For example, the text box 204 can contain a generic statement about the genre of the interactive mosaic channel 200, or statements directed to a selected video cell 202A-F or information related to the channel ID box 212 to describe to a user the meaning of the information presented in the channel ID box 212 or other information related to the video cell 202A-F and channel ID box 212. The text box can also scroll to present additional information to the viewer that does not all fit within text box 204 at a given time.
There can also be default text associated with each interactive mosaic channel 200, and, depending on the capabilities of IRD 112, each time an interactive mosaic channel 200 is tuned to, a default descriptive text shall be displayed in the text box 204.
Barker Cell
Barker cell 206 is a presentation of video data that can relate to the video cells 202A-F that are present in interactive mosaic channel 200. For those interactive mosaic channels 200 that have the optional barker cell 206, the barker cell 206 can use audio or video clues to direct the user to one of the video cells 202A-F for more information on a given topic, or provide an overview of the information presented within the video cells 202A-F. For example, the audio and video associated with barker cell 206 in a news format can be a series of stories that are being covered in more depth on the viewer channels being shown in video cells 202A-F, and the barker cell 206 audio and video can then direct the viewer to tune the IRD 112 or monitor 114 to a specific video cell 202A-F for more information on that topic. The barker cell 206 can also be used to provide an overview of the news stories, either those presented in video cells 202A-F or other news stories of interest, without directing the viewer to one of the video presentations being discussed in the video feeds shown in video cells 202A-F.
Barker cell 206 can present audio and video information that is not available on any other viewer channel that is accessible to IRD 112 or monitor 114, other than within the barker cell 206 of the interactive mosaic channel 200. When the barker cell 206 presents audio and video information that is not present on any other viewer channel accessible to IRD 112 or monitor 114, then the barker cell 206 does not have an associated channel ID box 212.
Background Video
Background video 208 is typically a backdrop for the interactive mosaic channel 200. The background video 208 can be related to the genre of the interactive mosaic channel 200; for example, in a news environment, the background video 208 can be related to a top news story, the stock market exchange building, a prominent government building, etc. The background video 208 can be changed or can be a dynamic video depending on the desires of the editorial staff or viewer preferences. Further, the background video 208 can be a logo or other indicator of the source of the interactive mosaic channel 200, such as DIRECTV.
Interactive Features
Typically, IRD 112 and monitor 114 are controlled by a remote control device 224, which allows viewers a convenient way to control audio volume, channel selection, and other features and display characteristics from a distance away from the IRD 112 and/or monitor 114.
Each video cell 202A-F has an associated channel ID box 212, and one of the video cells, cell 202D, has a cursor 214 surrounding that specific video cell 202 and, optionally, channel ID box 212. The cursor 214 indicates that the specific video cell 202 and channel ID 212 has been selected by the viewer. The cursor 214 is typically controlled by buttons 226-232, but can be controlled by other buttons on the remote control 224 if desired.
By selecting a given video cell 202A-F, the viewer is selecting a specific characteristic associated with that given video cell 202A-F, or associated video feed used to generate that video cell 202A-F. In most instances, when the viewer selects a given video cell 202, the audio portion associated with the selected video cell 202 will be presented to the viewer, rather than the audio portion associated with the barker cell 206 or a generic audio track that is associated with interactive mosaic channel 200. Further, selection of a given video cell 202A-F with cursor 214 may also select a closed captioning data stream associated with the selected video cell 202, depending on the availability of such a data stream and/or other settings that a viewer has selected. Cursor 214 can be moved to any of the video cells 202A-F, and, optionally, can be moved to select text box 204 or control bar 210.
When cursor 214 is moved to a given video cell 202A-F via buttons 226-232, text box 204 also may undergo a change in information. Typically, when the video cell 202A-F is selected by the viewer, indicated by the presence of cursor 214, text box 204 will present the information in the Advanced Program Guide (APG) that is associated with the viewer channel selected by cursor 214. The APG typically includes information on the program or “show” that is currently being presented by the viewer channel shown in video cell 202A-F, as well as the time that show is being aired and the next show to be aired on that viewer channel. Other information, either in the APG or external to the APG, can also be displayed in the text box 204 when the cursor is moved to a given video cell 202A-F.
As such, the viewer can “interact” with the interactive mosaic channel 200 and decide which audio track to listen to, find out a plot line of each of the shows being presented in the various video cells 202, find out what is going to be aired next in the various viewer channels being presented in video cells 202, or listen to generic audio from the barker cell 206 or associated with the interactive mosaic channel 200 itself while variously viewing the video presentations in the video cells 202. If a specific video cell 202 presents video information that is of interest to a viewer, then the viewer can move cursor 214, via a remote control command, to a given video cell 202, and listen to the audio associated with that video cell 202 and find out more about that viewer channel in text box 204.
If the viewer decides that the selected video cell 202 is of enough interest, the viewer can then directly tune to the selected video cell 202, i.e., tune directly to that viewer channel that is providing the video and audio used to create video cell 202, by pressing a single button on the remote control 224 (typically the “select” button on a DIRECTV remote control). This will tune the IRD 112 or monitor 114 to that viewer channel, which will then be presented full-screen to the viewer as in a normal television monitor 114 viewing format.
The barker cell 206, since it typically contains audio and video information that is not located on any viewer channel other than the interactive mosaic channel 200, cannot typically be selected for full screen viewing by the viewer on monitor 114. However, the barker cell 206 can be selected for full monitor 114 viewing, or at least enough of the monitor 114 to allow for changes in the video cells 202 as described below, to allow for changes in the interactive mosaic channel 200 and in the control bar 210 in near-real-time.
Control Bar
The Control Bar 210 (also called the Attract Icon or the Attract Icon Bar) The control bar 210 allows for instant, on-screen access to several data sources that allow the viewer to access data related to that being shown in the video cells 202A-F as well as other viewer channels available within system 100. Those IRDs 112 that have interactive capabilities have special buttons that correspond to the icons that appear on the control bar 210. Each icon/button directs the viewer to a different screen, such as special events, or, in the case of the present invention, data related to real-time or near-real-time viewership of channels within system 100. Each screen can have sub-screens that further allow related data to be viewed or otherwise analyzed by the viewer.
For example, and not by way of limitation, one of the remote control 224 buttons, e.g., the “red” button 234, indicated by text and/or graphics on control bar 210, may take a viewer to the “What's Hot” page, where viewers can review data related to viewership of shows currently being aired within system 100.
Similarly, a “special” page can be accessed by pressing a different button on the remote control 224, e.g., the “green” button 236, or the blue button 238 or yellow button 240, where viewers can view a channel or other data page. The special page can be reprogrammed by the system provider or the viewer based on time, or, in the case of interactive mosaic channel 200, can be done by genre. For example, and not by way of limitation, the special page can be assigned to the NCAA bracket for a “Sports” mosaic channel 200, and, if the viewer changes to a “News” mosaic channel 200, the special page can be a breaking news channel or news recap video loop that is provided by the system provider. There can be more than one special “page” that is accessible from the buttons 234-240, or other buttons on the remote control 224, if desired.
Monitor Displays
Page 300 is illustrated, with screen 302, popularity indicator 304, network icon 306, show name 308, trend indicator 310, viewership legend 312, cursor 314, and tabs 316-326. Scroll bar 328 and control bar 330 with icons 332-336 are also shown on page 300.
Screen 302 indicates via popularity indicator 304 the top shows that are being currently aired in system 100 by genre, the genre being indicated by a highlighted tab 316-326. For example, as shown in
Network icon 306 helps to indicate which network or channel is broadcasting the most popular show, and the program name 308 also indicates to the viewer the program that is currently being aired. Trend indicator 310 shows whether over a given recent time period, whether the viewership of that show has gone up or down, or if it is a new show in the top show lineup on page 300. Viewers indicator 312 shows a relative viewership share, or a pure number of viewers, depending on what is desired by the system provider or viewer.
Cursor 314 allows the viewer to select a given top show for additional information on that show. As shown in
By using scroll bar 328, either by using the cursor keys 226-232 on remote control 224 or by other methods,
Within screen 302 as shown in
System 100 is shown, now with callback information 400 being transmitted from IRD 112 through telephone wires 402 and link 404 to conditional access management center 406. Each IRD 112 that is connected to telephone wires 402 makes a periodic call into the conditional access management center 402 to obtain updates to conditional access codes, request pay-per-view events, and other reasons. Typically, the call in is performed on a monthly basis, but can be performed on a daily or hourly basis if desired. At the center 406, the IRD 112 identification number, current channel information, duration that the IRD was on a given channel, etc., is cross-referenced to the zip code for a given IRD 112. Once the zip code information is obtained, the card ID for that IRD is removed from the data packet 408 that is passed along to the advanced services data center 410, such that individual viewers information is no longer accessible. The advanced services center 410 then amalgamates the data packets 408 from the various viewers, and places it into the proper format to be included with the viewership data pages 300 described herein. Uplink center 118 then sends this data on uplink signals 116 to satellites 102-106 (for ease of understanding, only satellite 102 is shown), and this data is sent down via downlink signals 120 to IRD 108. The viewership data can be sent on mosaic channels 200, or on regular channels as a control bar 110 that is accessible from any channel that is received and demodulated by IRD 112, as well as being accessible from other portions of the data viewable on monitor 114, e.g., guide data.
Amalgamation of Data and Geographical Tagging
Conditional Access Management Center (CAMC) 406 receives data on link 404 from IRDs 112 within a geographical area. The geographical area may be the entire United States, or can be local areas if desired. The data on link 40 typically comprises a smart card identification number, a channel number, and a length of time that the IRD 112 has spent on a given channel.
The CAMC 406 uses link 404 to verify and/or provide conditional access for IRD 112 based on the IRD 112 customer service plan, pay-per-view access, etc. Further, CAMC 406 uses link 404 to ensure that IRD 112 is working properly in case of a problem or trouble report received from the viewer using IRD 112.
Once CAMC 406 receives data on link 404, the data is supplied to a database 500 to verify that the IRD 112 sending the data is authorized to receive data, etc. If the channel number, or the smart card identification number, is not authorized for the IRD 112, access for that IRD to system 100 is shut down or limited to the proper access level. For the present invention, rather than refer to the data sent on link 404 by smart card identification number, the channel information, duration of viewing on channel, and other information is given a new reference piece of data by database 500. Typically, this reference data 502 is a zip code, but can also be a city name, state name, or other generalized geographical data point which will give a geographical location to the data received on link 404. This reference data 502 is then combined with data on link 404 in combiner 504, and the combined data 506 is then used.
Combined data 506 is then sent through several filters 508 to organize the combined data for presentation on pages 300. For example, filter 508A may filter out all of the combined data 506 that is being viewed in the Pacific Time Zone; this can be done by sorting all of the combined data 506 by zip code, city name, state, etc. or by any other reference data 502 point. Filter 508B may filter out all of the combined data 506 that is being viewed in the Los Angeles area; again, this can be done by sorting all of the combined data 506 by the reference data 502 point, or by other parts of combined data 506. This process of filtering or amalgamating the individual pieces of combined data 506 allows CAMC 406 to provide inputs to pages 300.
After filtering and amalgamating the combined data 506, the data is stored for future use in memory 510. Prior to storing the filtered data, the data is compared to a previously stored value 512 for that data point, such that trend indicator 310 can be properly displayed on pages 300.
So, for example, if there is no previously stored data point 512 for a given data point, e.g., the Pacific Time Zone viewership combined data 506, all of the trend indicators 310 would indicate “new” or some other moniker to show on pages 310. For those channels that had a change between filtered data and previously stored value 512, the trend indicator 310 for those channels would show a change in a positive direction when the filtered data increased over the previously stored value 512, or a negative direction when the filtered data decreased with respect to the previously stored value 512. If there was no change between the filtered data and the previously stored value, or if the change was insignificant with respect to the previously stored value 512, the trend indicator 310 would show that there was no change in viewership.
The combined data 506, after filtering and amalgamation, can be sorted in any way desired. Further, projections of viewership of future aired programs, based on prior viewership data, can be presented on screens 300, based on previously stored values 510 for given channels or broadcast programming that is presented at given times, as well as allowing system 100 to provide viewers information for those shows that are presented at staggered airtimes. The present invention also allows for a projection of a viewership in one geographic area based on the viewership in another geographic area. For example, and not by way of limitation, a given show that is being broadcast in the Eastern Time Zone may receive a certain viewership rating on pages 300 that would be displayed on monitors 114 in the Eastern Time Zone during that broadcast. The same show would be shown three hours later in the Pacific Time Zone, and, thus, a prediction can be made for the Pacific Time Zone viewers that the upcoming broadcast will be a top rated broadcast. Such indicators can be made on pages 300, or on any other channel that can be displayed on monitor 114 by IRD 112.
Other Features of the Viewership Screens
As described with respect to
For example, a given viewer may have a programming package that does not provide access to a specific viewer channel, e.g., ESPN. If the video feed that is used for viewer channel ESPN is showing a popular show that is currently in the top viewership of a given tab 316-326, there are several options as to how to display the ESPN channel without inadvertently giving a user access to the video information on the unauthorized viewer channel. For example, the unauthorized or blocked channel may use a channel logo graphic to fill that slot on screen 302, and still provide the channel name/moniker and channel number for viewing to the viewer. The page 300 may use a generic graphic to inform the viewer that an upgrade is available to the viewer's programming package that would enable the viewer to see the video information on that channel, and assist the viewer in upgrading their service to receive that channel. The service provider may also choose to present no text or graphics in that part of page 300 at all.
Further, parental controls are applicable to each page of the pages 300 shown. For example, a page 300 may indicate that a movie is being shown that exceeds the parental limits set for a given IRD 112 or monitor 114. In such cases, direct tuning to that channel from page 300 may require a password, or may be blocked from viewing on monitor 114, until the parental control limit is raised or the programming on that viewer channel drops below the set parental control limit.
The present invention comprises a viewership rating system presented on a monitor. A system in accordance with the present invention comprises a plurality of broadcast programs, each broadcast program in the plurality of broadcast programs given a rating, the rating based on a current viewership of the plurality of broadcast programs within a geographical area, and a control bar; displayed on the monitor, wherein a command displayed on the control bar selects a screen for display on the monitor, the screen comprising information related to at least one of the ratings of the plurality of broadcast programs.
Such a system further optionally includes the current viewership being determined by callback information gathered from a plurality of receivers that are receiving the broadcast programs, the plurality of receivers being located in a second geographical area, the geographical area being a subset of the second geographical area, the second geographical area being determined by zip code or time zone, and a rating determined in a first time zone being used to predict a rating in a second time zone.
An apparatus in accordance with the present invention comprises a broadcast delivery system, comprising a transmitter and a receiver, a monitor, coupled to the receiver, for selectively displaying the plurality of broadcast programs, and a feedback system, coupled to the receiver, for determining a rating of at least one of the plurality of broadcast programs, the rating based on a current viewership of the plurality of broadcast programs within a geographical area.
Such an apparatus further optionally includes a control bar, displayed on the monitor, wherein a command displayed on the control bar selects a screen for display on the monitor, the screen comprising information related to at least one of the ratings of the plurality of broadcast programs, the broadcast delivery system being a satellite television delivery system, the information comprising a trend statistic for each of the plurality of broadcast programs, the statistics further comprising an indication of a number of other viewers that are viewing each of the plurality of broadcast programs, the current viewership being determined by callback information gathered from a plurality of receivers that are receiving the broadcast programs, the plurality of receivers being located in a second geographical area, the geographical area being a subset of the second geographical area, the second geographical area being determined by zip code, the second geographical area being determined by time zone, a rating determined in a first time zone being used to predict a rating in a second time zone, the feedback system being a telephone callback system, the statistics being accessed by a selection of a remote control command button the plurality of broadcast channels being presented by genre, and the selection of the remote control button reaching a different default genre based on a channel being viewed when the selection of the remote control button is made.
The foregoing description of the preferred embodiment of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the invention be limited not by this detailed description.
| Number | Date | Country | |
|---|---|---|---|
| 60774352 | Feb 2006 | US |
