WO2009122370A2 - Wireless communication system and method for automatically switching data channel in the system using a content stamp matrix - Google Patents
Wireless communication system and method for automatically switching data channel in the system using a content stamp matrix Download PDFInfo
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- WO2009122370A2 WO2009122370A2 PCT/IB2009/051380 IB2009051380W WO2009122370A2 WO 2009122370 A2 WO2009122370 A2 WO 2009122370A2 IB 2009051380 W IB2009051380 W IB 2009051380W WO 2009122370 A2 WO2009122370 A2 WO 2009122370A2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/37—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/46—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for recognising users' preferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
- H04H60/73—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management 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
- H04N21/4508—Management of client data or end-user data
- H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management 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
- H04N21/458—Scheduling 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/40—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast time
Abstract
A wireless mobile device, wireless communication system and method for automatically switching data channels in the wireless mobile device uses a content stamp matrix that includes content features and time stamps of services available on the data channels to determine at least one of the content features that matches any of reference content features in a content feature preference list. A matched content feature is then used to automatically switch to a data channel of a service associated with the matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
Description
WIRELESS COMMUNICATION SYSTEM AND METHOD FOR
AUTOMATICALLY SWITCHING DATA CHANNEL IN THE SYSTEM
USING A CONTENT STAMP MATRIX
There is a growing interest in providing multimedia broadcast services for wireless mobile devices. Currently, there are three main technology families for delivering multimedia contents to wireless mobile devices. These technology families include: cellular broadcast, such as Multimedia Broadcast Multicast Service (MBMS) in third-generation/Universal Mobile Telecommunications System (3G/UMTS) and its enhancement version being discussed in Third Generation Partnership Project Long Term Evolution (3GPP LTE); terrestrial digital broadcast networks and their extensions, such as Digital Video Broadcasting-Handheld ( DVB-H) based on Digital Video Broadcasting- Terrestrial (DVB-T), Terrestrial-Digital Multimedia Broadcasting (T-DMB) based on Digital Audio Broadcast (DAB) standard, and Media Forward Link Only (MediaFLO) initiated by Qualcomm; and hybrid satellite and terrestrial systems, such as Digital Video Broadcasting-Satellite service to Handhelds (DVB-SH), which is DVB-H in the S- band.
One of the challenges for end-users with wireless mobile devices having multimedia service is that it becomes a daunting task to manage numerous programs available on various data channels. Furthermore, in many situations, the end-users may be interested in only portions or segments of programs. Personal electronic program guides (EPGs) can be helpful in managing the available programs using program filters. However, personal EPGs would not be useful for end-users who are interested in portions of programs since EPGs provide general information regarding entire programs.
In view of this challenge, there is a need for a wireless communication system for end-users of wireless mobile devices to better manage sections of available programs that are of interest to the end-users.
A wireless communication system, wireless mobile device and method for automatically switching data channels in the wireless mobile device uses a content
stamp matrix that includes content features and time stamps of services available on the data channels to determine at least one of the content features that matches any of reference content features in a content feature preference list. A matched content feature is then used to automatically switch to a data channel of a service associated with the matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
A wireless mobile device for receiving services on different data channels in accordance with an embodiment of the invention comprises a receiver, a content matcher and a channel switcher. The receiver is configured to receive wireless signals, including signals containing a content stamp matrix transmitted from a broadcasting network. The content stamp matrix includes content features and time stamps of services available on the data channels. The content matcher is configured to determine whether at least one of the content features matches any of reference content features in a content feature preference list. The channel switcher is configured to automatically switch to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list. A wireless communication system in accordance with an embodiment of the invention comprises a content provider, a content stamp matrix generator, a broadcasting network and a mobile device. The content provider is configured to provide a plurality of services. The content stamp matrix generator is configured to generate a content stamp matrix, which includes content features and time stamps of the services. The broadcasting network is operably connected to the content provider and the content stamp matrix generator to receive the services and the content stamp matrix for broadcasting on different data channels. The mobile device is configured to receive at least some of the services and the content stamp matrix from the broadcasting network. The mobile device is further configured to determine whether at least one of the content features matches any of reference content features in a content feature preference list. The mobile device is further configured to automatically switch to a data channel of a service associated with a matched content feature using a time stamp that correspond to
the matched content feature based on priority of a matched reference content feature in the content feature preference list.
A method for automatically switching data channels in a wireless mobile device in accordance with an embodiment of the invention comprises receiving a content stamp matrix wirelessly transmitted from a broadcasting network at the wireless mobile device, the content stamp matrix including content features and time stamps of services available on the data channels, determining whether at least one of the content features matches any of reference content features in a content feature preference list at the wireless mobile device, and automatically switching the wireless mobile device to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
Other aspects and advantages of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrated by way of example of the principles of the invention.
Fig. 1 is a diagram of a wireless communication system in accordance with an embodiment of the invention. Fig. 2 is a block diagram of a wireless mobile device of the wireless communication system of Fig. 1 with an automatic channel switching feature in accordance with an embodiment of the invention.
Fig. 3 is a flow diagram of a processing operation performed by a content matcher of the wireless mobile device of Fig. 2 in accordance with an embodiment of the invention.
Fig. 4 is a process flow diagram of a method for automatically switching data channels in a wireless mobile device in accordance with an embodiment of the invention.
With reference to Fig. 1 , a wireless communication system 100 in accordance with an embodiment of the invention is described. The wireless communication system 100 includes a content provider 102, a broadcasting network 104 and a number of wireless mobile devices 106. As described in more detail below, the content provider 102 and the broadcasting network 104 operate
to broadcast programs or services to the mobile devices 106, along with content feature information of the programs. The content feature information of the programs is used by the mobile devices 106 for performing intelligent automatic channel switching based on preferences of end-users of the mobile devices with respect to program contents.
The content provider 102 is responsible for multimedia data source distribution. The content provider 102 provides multimedia data, which includes programs, to the wireless mobile devices 106 through the broadcasting network 104. As used herein, a program is any type of a multimedia that can be played on electronic devices, including the mobile devices 106. As an example, a program could be a television show, a personal recorded video, a movie, a video segment, or any audio/visual content. In this disclosure, the terms "program" and "service" are used interchangeably. Although the content provider 102 is shown in Fig. 1 as a single entity, the content provider may comprise multiple entities. In this embodiment, the content provider 102 includes a content stamp matrix generator 108, which is configured to generate dynamic content stamp matrices. A content stamp matrix includes content stamps and corresponding time stamps such that each content stamp is associated with a particular time stamp. A content stamp is a content feature of a service segment or section, which is representative of that service segment. As an example, a content stamp can be in the form of text, still image (full or reduced resolution), sound, flash or video/audio clip from original program section, or a descriptive text of the original program section.
The content stamp matrix generator 108 generates digital audio/video (AV) contents from raw AV program data using mainstream codec (compression- decompression) algorithms, such as MPEG-2, MPEG-4, H.264/AVC and AVS or proprietary algorithms. In order to extract the content features, MPEG-7 can be used to generate content stamps from each service, i.e., each program. The following table is used to describe how to decompose a service into several content features.
As shown in the above table, there are x content features embodied in service(i), which are represented as content stamps F1I, F1I, ...,F1x, where F1x denotes the content stamp for the xth content feature of service(i). As an example, the service (1) may be a football match. In this example, the context contained in the content stamps for the service (1) may be listed as: player A enters the court (Fn), Spanish coach gives instruction to player B (FJ2), referee whistles a foul against team A (F13), penalty shootout is started (F14), current score is displayed as 1 :0 (Fi5), etc. Of all the available services, the content provider 102 may select some of the services to schedule a program list {..., service(m),..., service(n),...} within a certain period, e.g., several hours, days etc. In order to synchronize the service content with its content stamp, multimedia data to be delivered will contain corresponding time information, which is also referred to herein as the time stamp. The time stamp could be an absolute time, or alternatively, a relative time (e.g. relative to the start of the program, which would provide some flexibility in scheduling the start time of the program without having to retransmit the content stamp matrix containing changed absolute time). To achieve more transmission efficiency, the time stamp can also be reduced to only one reference absolute time stamp for all the programs. All the following time stamps of each program are based on one unified absolute time stamp.
The extracted content stamps with the time information are then mapped to a dynamic content stamp matrix by the content stamp matrix generator 108 for further encoding. A dynamic content stamp matrix can be represented as follows:
**ml \* ml ) ^m2 \^m2 / • • • "K V* ma ) ■ ■ ■
(1)
Ki(TJ F112(T112) ... Fnβ(Tnβ) ..._ where Fma (Tma ) denotes the scheduled time for broadcasting the content parts containing a'h content feature of service(m) is in Tma . In this example, the
content stamps for a single service are situated on a single row of the content stamp matrix.
The encoding method used by the content stamp matrix generator 108 for the content stamp matrix may be the same method used for normal content encoding. However, a different encoding method can be applied to the content stamp matrix since content stamps of different services may vary from each other but are encoded into one data packet in parallel to other data packets generated from each service.
In this embodiment, the content stamp matrix generator 108 is described herein as being part of the content provider 102. However, in other embodiments, the content stamp matrix generator 108 may be part of the broadcasting network 104.
The broadcasting network 104 is connected to the content provider 102 to receive multimedia data (i.e., data of services to be broadcast to the wireless mobile devices 106) and encoded content stamp matrices from the content provider. The broadcasting network 104 operates to broadcast or transmit the multimedia data on different data channels to the mobile devices 106 associated with the broadcasting network. The broadcasting network 104 is configured to periodically broadcast a service announcement to the mobile devices 106 so that the mobile devices will know which services will be available on the different data channels. The broadcasting network 104 may be any type of a network that can provide multimedia services to the mobile devices 106. The broadcasting network 104 may be a cellular broadcast network, such as a 3G/UMTS network. Alternatively, the broadcasting network 104 may be a terrestrial digital broadcast based network, such as a DVB-H network or a MediaFLO network.
Alternatively, the broadcasting network 104 may be a hybrid satellite and terrestrial network, such as a DVB-SH network.
Depending on the type, the broadcasting network 104 may include a satellite 110, a gateway 112 and a number of broadcasting towers or base stations 114. The satellite 110 and the gateway 112 are connected to the content provider 102 to transmit data, including multimedia data and content stamp matrices from the content provider. The satellite 110 and the gateway 112 are also connected to the base stations 114 to transmit data, including the multimedia data and the
content stamp matrices. The multimedia data is transmitted to the mobile devices 106 on different data channels for different services.
The broadcasting network 104 is configured to allocate one or more data channels to transmit the content stamp matrices. In an embodiment, the broadcasting network 104 uses a dynamic channel allocation scheme since data amount of the content stamp matrices varies from different set of scheduled services. In this embodiment, the broadcasting network 104 is configured to allocate a control channel to announce to the wireless mobile devices 106 the availability of a content stamp matrix and the data channel(s) on which to detect the content stamp matrix.
The wireless mobile devices 106 are configured to communicate with the broadcasting network 104 to receive the multimedia data and the content stamp matrices. The mobile devices 106 can be any type of devices capable of operating in a wireless communication environment provided by the broadcasting network 104. As described below, at least one of the mobile devices 106 is configured to use the content stamp matrices to perform intelligent automatic channel switching. With reference to Fig. 2, a wireless mobile device 200 with an intelligent automatic channel switching feature in accordance with an embodiment of the invention is described. The wireless mobile device 200 is representative of the wireless mobile devices 106 of the wireless communication system 100 that have the intelligent automatic channel switching feature. As shown in Fig. 2, the mobile device 200 includes an antenna 202, a transmitter 204 and a receiver 206. The transmitter 204 and the receiver 206 are connected to the antenna 202. The transmitter 204 is configured to transmit outgoing signals using the antenna 202. The receiver 206 is configured to receive incoming signals, including signals for multimedia data and content stamp matrices, using the antenna 202. The transmitter 204 and the receiver 206 are configured transmit and receive signals using wireless technology supported by the broadcasting network 104. Although the mobile device 200 is shown with a single antenna 202, the mobile device may include any number of antennas.
The mobile device 200 further includes a user profile module 208, a content matcher 210, a channel switcher 212 and a processor 214. The user profile module 208 is configured to maintain a content feature preference list,
which includes user preferences for content features based on a priority scheme. Thus, the content feature preference list includes reference content features that are preferred by a user of the mobile device 200. The content feature preference list may be updated manually by the user. Since the end-user can be better informed of new content features whenever a content stamp matrix is received, the end-user can update the content feature preference list after the content stamp matrix is received. In some embodiments, the user profile module 208 may be configured to automatically update the content feature preference list semi- statically using a known method, such as a method based on an article by Ehrmantraut et al., titled "The Personal Electronic Program Guide - Towards the Pre-selection of Individual TV Programs," pp. 243-250, Nov. 1996, Proceedings of the Fifth International Conference on Information and Knowledge Management CIKM '96, which is incorporated herein by reference. For example, if the user likes murder movies and further specifies that the user likes seeing criminals sent to prison, then the user profile module 108 may automatically generate a preference list with a high ranking to content stamps corresponding to criminals being sent to prison in murder movies.
The content matcher 210 is configured to process content features and time stamps of a content stamp matrix from the broadcasting network 104, which is received and decoded by the receiver 206. The content matcher 210 operates to determine the content features that match the reference content features in the content feature preference list. The matched reference content features are then buffered based on the priority of the reference content features of the content feature preference list. The processing operation performed by the content matcher 210 in accordance with an embodiment of the invention is described with reference to a flow diagram of Fig. 3. At block 302, the content matcher 210 establishes a one- to-one mapping chart between time stamps and content stamps of a content stamp matrix. Next, at block 304, the content matcher 210 finds one or more time stamps of the lowest value (i.e., earliest broadcast time). Next, at block 306, the content matcher 210 retrieves the content feature(s) that correspond to the found time stamp(s). Since several services are simultaneously broadcasted, there are usually more than one content feature for a particular broadcast time. In these
situations, multiple time stamps are found and multiple content features are retrieved for processing.
Next, at block 308, the content matcher 210 then compares the retrieved content features with the content feature preference list to determine whether the retrieved content features are found in the content feature preference list. That is, the content matcher 210 performs a match search process to see if any of the retrieved content features matches any of the reference content features in the content feature preference list. If there are matched content features, then the operation proceeds to block 310, where the time stamps for the matched content features are buffered according to priority of the matched reference content features in the content feature preference list such that the time stamp for the matched content feature with the highest priority will be readout first. However, if none of the retrieved content features are found in the content feature preference list, the operation proceeds to block 312, where the searched time stamps are excluded by the content matcher 210. The operation then proceeds back to block 304, where the content matcher 210 finds one or more time stamps of the now lowest value (i.e., the lowest value excluding the searched time stamps) to perform another match search process.
The channel switcher 212 is configured to automatically switch to different channels based on the buffered time stamps. By periodically reading service announcements in the control channel, the channel switcher 212 will know on which data channels to receive services containing service sections that correspond to the matched content features. During a particular time as defined by one or more buffered time stamps, the channel switcher 212 will select the matched content feature of the highest priority and then will automatically switch to the data channel allocated for the service containing the service section for that matched content feature. If the mobile device 200 is currently tuned to that channel, then the channel switcher 212 will maintain that data channel for the duration of the service segment associated with the matched content feature. The processor 214 is connected to various components of the mobile device 200 to control those components. The processor 214 is connected to the transmitter 204 and the receiver 206 to control the transmission and reception of signals. The processor 214 may be a general-purpose digital processor such as a
microprocessor or microcontroller. In other embodiments, the processor 214 may be a special-purpose processor such as a digital signal processor. In other embodiments, the processor 214 may be another type of controller or a field programmable gate array (FPGA). Although the mobile device 200 is shown and described as having a single processor, the mobile device may include multiple processors in other embodiments. In some embodiments, the processor 214 may operate with one or more of the user profile module 208, the content matcher 210 and the channel switcher 212 to perform some of the above-described operations of these components. The user profile module 208, the content matcher 210 and the channel switcher 212 may be implemented in any combination of software, hardware and firmware.
In the case of live broadcast scenario, the content provider 202 has to delay the multimedia transmission, e.g., for several seconds, to timely extract the content features of the live broadcast program without affecting the end-user's viewing experience. Thus, for live broadcast programs, it is necessary to add a time offset to all the time stamps associated with the content stamps so that the mobile devices 106 can timely switch between services. In addition, it is likely that the content stamp matrix of live broadcast services is updated more frequently than scheduled broadcast services. Consequently, the broadcasting network 104 may get a smaller amount of data but in a shorter time window. Thus, it is appropriate for the broadcasting network 104 to allocate a control channel for the incremental information. However, the broadcasting network 104 may be configured to decide whether to allocate control or data channel(s) for the incremental information. For each mobile device 106 with the automatic channel switching feature, there is no change to its operation with respect to live broadcast services. However, the mobile devices 106 with the automatic channel switching feature may need to adjust the content feature preference list more frequently for the live broadcast services than the scheduled services.
In an embodiment, a feedback loop between the mobile devices 106 with the automatic channel switching feature and the content stamp matrix generator 108 is provided. In this embodiment, each mobile device 106 with the automatic channel switching feature can periodically update its content feature preference list and send the list to the content stamp matrix generator 108 on an uplink
channel. Alternatively, the broadcasting network 104 itself or under the request of the content provider 102 may originate a polling mechanism to be timely informed of each mobile device's preference list. Therefore, the broadcasting network 104 can dynamically schedule the services to be delivered in order to optimally utilize the network resources while maximally catering to the tastes of various end-users of the mobile devices 106. At the same time, the content provider 102 can also make an overall program list plan by taking into account the end-users' preferences in order to improve its audience rating.
A method for automatically switching data channels in a wireless mobile device in accordance with an embodiment of the invention is described with reference to a process flow diagram of Fig. 4. At block 402, a content stamp matrix wirelessly transmitted from a broadcasting network is received at the wireless mobile device. The content stamp matrix includes content features and time stamps of services available on the data channels. Next, at block 404, a determination is made whether at least one of the content features matches any of reference content features in a content feature preference list at the wireless mobile device. Next, at block 406, the wireless mobile device is automatically switched to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
Although specific embodiments of the invention have been described and illustrated, the invention is not to be limited to the specific forms or arrangements of parts so described and illustrated. The scope of the invention is to be defined by the claims appended hereto and their equivalents.
Claims
1. A wireless mobile device for receiving services on different data channels, the wireless mobile device comprising: a receiver configured to receive wireless signals, including signals containing a content stamp matrix transmitted from a broadcasting network, the content stamp matrix including content features and time stamps of services available on the data channels; a content matcher configured to determine whether at least one of the content features matches any of reference content features in a content feature preference list; and a channel switcher configured to automatically switch to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
2. The wireless mobile device of claim 1 wherein the wireless mobile device is configured to operate with a broadcasting network selected from a group consisting of a cellular broadcast network, a terrestrial digital broadcast based network and a hybrid satellite and terrestrial network.
3. The wireless mobile device of claim 1 further comprising a user profile module that is configured to maintain the content feature preference list.
4. The wireless mobile device of claim 3 wherein the user profile module is configured to allow a user to manually update the content feature preference list.
5. The wireless mobile device of claim 3 wherein the user profile module is configured to automatically update the content feature preference list semi- statically.
6. The wireless mobile device of claim 1 wherein the content matcher is configured to determine the time stamps with the smallest value and to process only the content features that correspond to those time stamps for a single match search process.
7. The wireless mobile device of claim 6 wherein the content matcher is configured to buffer one or more of the time stamps that correspond to one or more matched content features based on the priority of the reference content features in the content feature preference list.
8. A method for automatically switching data channels in a wireless mobile device, the method comprising: receiving a content stamp matrix wirelessly transmitted from a broadcasting network at the wireless mobile device, the content stamp matrix including content features and time stamps of services available on the data channels; determining whether at least one of the content features matches any of reference content features in a content feature preference list at the wireless mobile device; and automatically switching the wireless mobile device to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
9. The method of claim 8 wherein the broadcasting network is a network selected from a group consisting of a cellular broadcast network, a terrestrial digital broadcast based network and a hybrid satellite and terrestrial network.
10. The method of claim 8 further comprising maintaining the content feature preference list at the wireless mobile device.
11. The method of claim 10 wherein the maintaining of the content feature preference list includes allowing a user to manually update the content feature preference list.
12. The method of claim 10 wherein the maintaining of the content feature preference list includes automatically updating the content feature preference list semi-statically.
13. The method of claim 8 further comprising determining the time stamps with the smallest value and processing only the content features that correspond to those time stamps for a single match search process.
14. The method of claim 8 further comprising buffering one or more of the time stamps that correspond to one or more matched content features based on the priority of the reference content features in the content feature preference list.
15. A wireless communication system comprising: a content provider configured to provide a plurality of services; a content stamp matrix generator configured to generate a content stamp matrix, the content stamp matrix including content features and time stamps of the services; a broadcasting network operably connected to the content provider and the content stamp matrix generator to receive the services and the content stamp matrix for broadcasting on different data channels; and a mobile device configured to receive at least some of the services and the content stamp matrix from the broadcasting network, the mobile device being further configured to determine whether at least one of the content features matches any of reference content features in a content feature preference list, the mobile device being further configured to automatically switch to a data channel of a service associated with a matched content feature using a time stamp that correspond to the matched content feature based on priority of a matched reference content feature in the content feature preference list.
16. The wireless communication system of claim 15 wherein the content stamp matrix generator is part of the content provider.
17. The wireless communication system of claim 15 wherein the broadcasting network is a network selected from a group consisting of a cellular broadcast network, a terrestrial digital broadcast based network and a hybrid satellite and terrestrial network.
18. The wireless communication system of claim 15 wherein the mobile device is configured to determine the time stamps with the smallest value and to process only the content features that correspond to those time stamps for a single match search process.
19. The wireless communication system of claim 15 wherein the broadcasting network is configured to allocate one or more data channels to transmit the content stamp matrix to the mobile device, the broadcasting network being configured to allocate a control channel to announce the availability of the content stamp matrix and on which data channel or channels the content stamp matrix is available.
20. The wireless communication system of claim 15 wherein the content stamp matrix generator is configured to extract the content features from the services and to generate the time stamps using a scheduled program list.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4158308P | 2008-04-01 | 2008-04-01 | |
| US61/041,583 | 2008-04-01 |
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| Publication Number | Publication Date |
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| WO2009122370A2 true WO2009122370A2 (en) | 2009-10-08 |
| WO2009122370A3 WO2009122370A3 (en) | 2010-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2009/051380 WO2009122370A2 (en) | 2008-04-01 | 2009-04-01 | Wireless communication system and method for automatically switching data channel in the system using a content stamp matrix |
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| Country | Link |
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| WO (1) | WO2009122370A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2513891A (en) * | 2013-05-09 | 2014-11-12 | Frontier Silicon Ltd | A digital radio receiver system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020152463A1 (en) * | 2000-11-16 | 2002-10-17 | Dudkiewicz Gil Gavriel | System and method for personalized presentation of video programming events |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020152463A1 (en) * | 2000-11-16 | 2002-10-17 | Dudkiewicz Gil Gavriel | System and method for personalized presentation of video programming events |
Non-Patent Citations (1)
| Title |
|---|
| EHRMANTRAUT M ET AL: "THE PERSONAL ELECTRONIC PROGRAM GUIDE - TOWARDS THE PRE-SELECTION OF INDIVIDUAL TV PROGRAMS" PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON INFORMATION ANDKNOWLEDGE MANAGEMENT CIKM, ACM, NEW YORK, NY, US, 12 November 1996 (1996-11-12), pages 243-250, XP002071337 cited in the application * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2513891A (en) * | 2013-05-09 | 2014-11-12 | Frontier Silicon Ltd | A digital radio receiver system and method |
| US9455793B2 (en) | 2013-05-09 | 2016-09-27 | Frontier Silicon Limited | Digital radio receiver system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009122370A3 (en) | 2010-01-14 |
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