WO2009044323A2 - A method of managing multimedia service on a multimedia hand-held device - Google Patents

A method of managing multimedia service on a multimedia hand-held device Download PDF

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Publication number
WO2009044323A2
WO2009044323A2 PCT/IB2008/053949 IB2008053949W WO2009044323A2 WO 2009044323 A2 WO2009044323 A2 WO 2009044323A2 IB 2008053949 W IB2008053949 W IB 2008053949W WO 2009044323 A2 WO2009044323 A2 WO 2009044323A2
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WO
WIPO (PCT)
Prior art keywords
multimedia
dvb
hand
receiver
held device
Prior art date
Application number
PCT/IB2008/053949
Other languages
French (fr)
Other versions
WO2009044323A3 (en
Inventor
Prashant V. Agarwal
Venkatakrishnan Srinivasan
Narendranath Udupa
Original Assignee
Koninklijke Philips Electronics N.V.
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Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2009044323A2 publication Critical patent/WO2009044323A2/en
Publication of WO2009044323A3 publication Critical patent/WO2009044323A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H04H20/08—Arrangements for relaying broadcast information among terminal devices
    • 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
    • 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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4183—External card to be used in combination with the client device, e.g. for conditional access providing its own processing capabilities, e.g. external module for video decoding
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64315—DVB-H
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • 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
    • H04H60/41—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 space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H04H60/43—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 space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels

Definitions

  • the present invention relates to a method and a system for managing multimedia service on a multimedia hand-held device including a multimedia player.
  • DVB-H Digital Video Broadcasting-Handheld standard
  • DVB-H provides an efficient way of carrying multimedia service over digital terrestrial broadcasting networks to such mobile TV's devices.
  • a program map is created which contains the list of all available services, e.g. CNN, Star movies, Star sports, etc.
  • the current set of DVB-H modules is mostly embedded in the mobile TV devices.
  • the present invention relates to a method of managing multimedia service on a multimedia hand-held device including a multimedia player, the method comprising: coupling the multimedia hand-held device to a multimedia receiver device, the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver for receiving multimedia content broadcasted from DVB service stations, where in response to the coupling a command signal is issued instructing the DVB receiver to initiate service installation with the DVB service stations, generating, at the multimedia receiver device, a multimedia file system comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, exporting the multimedia file system to the multimedia hand-held device where it is presenting to the user of the multimedia hand-held device as virtual file system, wherein in response to selecting a file from the virtual file system a file
  • DVD Digital Video Broadcasting
  • the multimedia hand-held device is insulated from DVB related details as the mapping to files and channels are handled completely by the DVB receiver device.
  • Users that already possess mobile device having built therein a media player do thus no longer have to invest in costly high-end devices (with features such as 3 G phones, High resolution Digital Camera, WiFi, GPS, bigger LCD, Video Playback, VoIP client, Huge built-in memory) to watch mobile TV instead can have a simple plug-n-play feature to watch TV.
  • the method provides DVB functionality on a wide range of device.
  • Sending the multimedia content of the selected service station via the receiver device is typically performed by buffering/storing the multimedia content (video stream) temporarily in the receiver device and then exported to the multimedia hand-held device.
  • the multimedia content is converted to a mpeg4 file format at the receiver device side and transported to the multimedia hand-held device in mpeg 4 file format.
  • a file format is provided which allows nearly all existing portable devices having built therein a media player to watch TV.
  • the multimedia hand-held device is selected from: mobile telephones, personal digital assistant devices (PDA's), mobile TV's, and - digital cameras.
  • the present invention relates to a computer program product for instructing a processing unit to execute the above mentioned method steps when the product is run on a computer.
  • the present invention relates to a Digital Video Broadcasting (DVB) receiver device adapted to manage multimedia service on a multimedia hand-held device including a multimedia player
  • the DVB receiver device comprising: a coupling means for coupling the DVB receiver to the multimedia hand-held device, a Digital Video Broadcasting (DVB) receiver for receiving multimedia content from DVB-broadcast channels from DVB service stations, - a storage medium for temporarily storing the received multimedia content broadcasted from the DVB-service stations, a processor adapted to generate a multimedia file system based on the received DVB-broadcast channels from the DVB service stations, the file system linking the DVB- broadcast channels with the tuning frequency of the broadcast stations, the processor further being adapted to export the file system to the multimedia hand-held device via the coupling means as a virtual file system, the processor further being adapted to receive a file-open command from the multimedia hand-held device indicating the DVB-broadcast channels the user of the multimedia hand- held device whishes to see
  • DVB receiver device is a hand held receiver device (DVB-H).
  • Such a hand-held device may be selected from as an example PDAs, mobile phones, cameras and any type of hand- held device having built in media player.
  • the present invention relates to a system for managing multimedia service on a multimedia hand-held device including a multimedia player, the system comprising: coupling means for coupling the multimedia hand-held device to a multimedia receiver device, the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver for receiving multimedia content broadcasted from DVB service stations, the coupling resulting in a command signal instructing the DVB receiver to initiate service installation with the DVB service stations, a multimedia file system generator generating, at the multimedia receiver device, a multimedia file system comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, an exporting means for exporting the multimedia file system to the multimedia hand- held device where it is presented to the user of the multimedia hand- held device as virtual file system, wherein in response to selecting a file from the virtual file system a file-open command is issued indicating the selected service station and the tuning frequency of the selected service station, the file-open command subsequently being exported to the multimedia receiver device where it triggers the DVB-re
  • the DVB may be integrated in all kinds of stationary or mobile devices.
  • Example of such stationary devices is a PC computer, DVD-player, Set Top Boxes, DVD Recorders and the like. Accordingly, all variants of DVB may be used, e.g. Terrestrial, Cable, Satellite, in addition to all kinds of DVB-H handheld.
  • the coupling means is a Universal Serial Bus (USB).
  • USB peripheral is quite cheap today and therefore the user of the device is spared with investing in new and more expensive mobile TV, such as TV enabled phone/PMP.
  • an economical solution is provided saving substantial costs to user and therefore protecting their investment in their existing multimedia hand-held devices. Also, this allows adding few zapping keys on the module itself. This results in less dependency on the multimedia hand-held devices for zapping DVB-H channels.
  • the USB host device is now insulated from the DVB-H related details as the mapping to files and channels are handled completely by the DVB-H USB module.
  • One way of creating such "zapping behavior" is by adding 2 small extra keys (P+/P-) in module itself so that it can close the existing file and open next file thereby simulating a TV channel zapping behavior.
  • the coupling means is a memory card interface.
  • Such memory card interfaces may e.g. include CF, SD, memory stick. Since memory card interface is very popular with mobile/portable devices, inserting such a memory card with embedded DVB-H receiver will help user to avail of Mobile TV functionality. This mechanism is typically the same as one specified for USB. Instead of exporting DVB channels as USB mass storage FAT file system, it will be exported as CF Card FAT file system, SD Card FAT file system.
  • the coupling means is a wireless communication link.
  • This can be all kinds of wireless communication protocols such as Bluetooth, WiFi, UWB (Ultra Wide Band) and IEEE 1394 are other possibilities.
  • Fig. 1 shows a flowchart of a method according to the present invention of managing multimedia service on a multimedia hand-held device including a multimedia player
  • Fig. 2 shows an example of multimedia hand-held comprising a USB port and a USB based DVB-receiver device
  • Fig. 3 shows a system according to the present invention comprising a multimedia hand- held device and a receiver device, and
  • Fig. 4 shows an example of a file mapping system that is created at the receiver device side.
  • FIG. 1 shows a flowchart of a method according to the present invention of managing multimedia service on a multimedia hand-held device including a multimedia player.
  • a multimedia hand-held device including a multimedia player.
  • Such a device may e.g. be a mobile telephone, a personal digital assistant device (PDA), a mobile TV, a digital camera, media player and the like.
  • PDA personal digital assistant device
  • the multimedia hand-held device is coupled to a multimedia receiver device (Sl) 101 comprising a Digital Video Broadcasting receiver for receiving DVB-broadcast channels from DVB service stations.
  • This coupling is in one embodiment done via Universal Serial Bus (USB) mass storage interface by plugging the multimedia receiver device to the multimedia hand- held device.
  • USB Universal Serial Bus
  • the USB standard defines a Mass Storage Device Class based upon numerous documents. The documents are publicly accessible at http://www.usb.org/devclopcrs/dcvclass docs#approvcd.
  • the Universal Serial Bus Mass Storage Specification Overview Revision 1.2 dated June 23, 2003 addresses an overview of the Universal Serial Bus Mass Storage Class Specifications.
  • the Universal Serial Bus Mass Storage Class Bulk-Only Transport Specification Revision 1.0 dated September 31, 1999 addresses Bulk-Only Transport, or in other words, transport of command, data, and status occurring solely via Bulk endpoints.
  • the coupling is done via any kind of memory card interface such as CF, SD memory stick, but such memory cards support FAT (File Allocation Table) file system as primary interface with hand-held device. So the primary interface from a mobile/portable device to a memory card will be FAT file system.
  • the plugging results in that a command signal is issued instructing the DVB receiver to initiate with the DVB service stations.
  • the power supply of the multimedia receiver device may be connected to a microcontroller comprised in the multimedia receiver device such that when the multimedia receiver device is plugged to the multimedia hand-held device the microcontroller issues a piece of code or the like instructing the DVB to contact to the DVB service stations.
  • a multimedia file system is generated (S2) 103, where the multimedia file system comprises DVB service stations files identifying the service stations along with the tuning frequency of the service stations.
  • the powering up of the device may allow the DVB service stations to first be identified and located prior to the initiation of any action taken to export the DVB service stations identified via a multimedia file system.
  • the device may be in a state in which it is fully aware of the DVB service stations that are to be exported via the multimedia file system.
  • This file system is exported to the multimedia hand-held device (S3) 105 as a virtual file system, where it is presented to the user of the multimedia hand-held device, typically by displaying it the screen on the user's hand-held device or via other means such as speech commands.
  • the virtual file system is virtually populated with the DVB service stations identified and presented in, for example, the format of a FAT file system.
  • the user has on the screen of the display device the TV channels he/she can access, e.g. "channel 1" is Eurosport, "channel 2" is CNN, “Channel 3" is BBC etc.
  • the user can now select on of the channels via different means, e.g. by scrolling between the different channels and pressing an enter command, or via touch button interface, or speech command and the like, select the channel he/she is interested.
  • a file-open command is issued
  • the broadcasted multimedia content of the selected service station is subsequently transported to the receiver device where it is first buffered/stored temporarily in the receiver device and then exported to multimedia hand- held device (S5) 109 where it is played to the user through the multimedia player.
  • the multimedia content is transported to the receiver device where it is converted to mpeg4 format and exported to the multimedia hand-held device as mpeg 4 files which are then played with the built in media player.
  • FIG. 2 shows an example of an implementation of the present invention, where the multimedia hand-held device 201 comprises a USB port 203 and where the receiver device 200 is USB 204 based hand held receiver device (DVB-H) comprising a USB slave 204 and an antenna 209 for communicating with the various service stations 206-208.
  • the receiver device 200 may just as well be a stationary device (not shown here) comprised in e.g. a central server, where the coupling between multimedia hand- held device 201 and the receiver device is via a wireless communication channel (not shown) or via a wired communication channel.
  • the DVB-H installation is triggered when the DVB-H USB slave 204 is plugged into the multimedia hand- held device 201, e.g. a mobile phone or any kind of a PDA having a medial player installed.
  • the DVB-H is powered through the USB host 203 and connected to a microcontroller comprised in the DVB-H receiver 200.
  • the microcontroller triggers the DVB-H receiver to connect to the service stations 206-208 via a communication channel 205.
  • file names are created with channel names, e.g. "CNN", "Eurosport” etc.
  • the files are created in read only mode for the multimedia hand- held device 201 and only DVB-H USB Device has permission to write.
  • the files are exported as a USB mass storage device class device comprising a file system, for example a FAT file system, to the multimedia hand-held device 201.
  • a file system for example a FAT file system
  • the sector information of the storage space in the receiver device is known to the DVB-H USB device.
  • the receiver device creates a file system when it is plugged into a multimedia hand-held device such as a mobile phone.
  • the DVB-H USB device 200 needs to be aware of mapping between file names and their physical address/location in memory.
  • the multimedia hand-held device 201 exposes these channel files to the user e.g. via displaying them on a display screen.
  • a file-open command is issued at the multimedia hand- held device 201 and exported to the receiver device 300.
  • the s/w on the DVB-H USB triggers the tuning of the DVB-H receiver to the corresponding service frequency, and starts dumping the data packets into the fixed buffer space allocated to store the IP datagrams, where it is stored temporarily.
  • the FileRead actions are done on the buffer and the IP datagrams are passed on to the multimedia hand-held device 201 from DVB-H USB device 200. This way, the Media player Application on the multimedia hand- held device 201 can read the channel file as though it is a mp4 file stored on any USB storage device, such as a USB stick, and play it to the user.
  • the End-Of-File may never need to be sent as it is live streaming and the host needs to explicitly close the file before opening new file.
  • EEF End-Of-File
  • all the Channel X.mp4 files point to the same buffer, i.e. same sectors on the h/w, acting as links (like soft links in UNIX systems).
  • Zapping experience to user may achieved through the play list mechanism. It is also possible to create two small buttons (P+/-) on module itself to switch from one mpeg4 channel file to another (creates an illusion of zapping).
  • Figure 3 shows a system 3000 according to the present invention comprising a multimedia hand- held device 304 and a receiver device 300.
  • the receiver device 300 comprises an antenna 310, a processor (P) 311, a DVB-H tuner (DVB-H) 301 and an exporting means (E M) 312, which in case of wireless communication (e.g. communication like WiFi, Bluetooth) is a transmitter (T) 312.
  • the receiver device further comprises a memory 302 for e.g. storing the above mentioned file system, i.e. the name of the various service stations, the tuning frequency and the memory sector information and for storing temporarily the received multimedia content broadcasted from the service stations, where the video stream is first buffered/ stored temporarily prior to be exported to the multimedia hand- held device 304.
  • the receiver device further comprises a coupling means (C M) 303 for coupling the multimedia receiver device 300 to a corresponding coupling means (C M) 305 of the multimedia hand-held device 304.
  • the multimedia hand-held device 304 comprises in addition to said coupling means (C M) 305 a media player (M-Pl.) 306, a display (D) 307 and an interface means (I M) 308 for allowing the user of the device 300 to interact with the receiver device 304.
  • This can as an example be a keyboard, a touch button interface, a speech command system and the like.
  • the processor (P) 311 is adapted to generate a multimedia file system based on the received DVB-broadcast channels from the DVB service stations.
  • the file system is adapted to link the DVB-broadcast channels with the tuning frequency of the broadcast stations.
  • the processor is adapted to instructing the exporting means (E M) 312 export the file system to the multimedia hand- held device 304 via the coupling means 303, 305 as a virtual file system.
  • the role of the processor (P) is to receive a file-open command from the multimedia hand- held issued when the user of the multimedia hand- held device 304 selects a broadcast channel to watch by selecting one of the files displayed virtually. The processor then tunes301 to the tuning frequency of the selected broadcast channel and forward the received data packets to the multimedia hand-held device.
  • the coupling means (C M) 303 comprised in the receiver device 300 is a USB slave and the coupling means (C M) 305 of the multimedia hand- held device 304 is a USB master.
  • the coupling means (C M) 303, 305 is a memory card interface, such as a CF, SD memory stick wherein the service channels are exported as files in their respective file system instead of USB mass storage.
  • the coupling means (C M) 303, 305 is wireless communication means that communicates through different communication protocols such as blue tooth and the like.
  • Figure 4 shows an example of a file mapping system that is created at the receiver device side 300.
  • the file system is made of three columns, the first column being the channel names (Ch. Na.) 401, the second column being the channel frequency of the channel (Cha. Freq.) 402 and the third column being the memory sector information (Mem. Sect.) 403 of the channels, i.e. each line links the channels with the channel frequency and the memory sector information.
  • This matrix like file system is exported to the multimedia hand-held device as a virtual file system in a read only mode.
  • the file system may just as well only include the channel names instead of being represented with all these detail information, or be presented virtually to the user via the logos of the different channels/service stations.
  • a file-open command is issued indicating the selected service station/channel. This command is exported over to the receiver device 300 which then triggers the DVB-H tuner automatically to the associated channel frequency.
  • an embodiment of the invention relates to a method of managing multimedia service on a multimedia hand-held device including a multimedia player by coupling the multimedia hand-held device to a multimedia receiver device having a Digital Video Broadcasting (DVB) receiver for receiving DVB-broadcast channels from DVB service stations.
  • DVD Digital Video Broadcasting
  • a command signal may be issued instructing the DVB receiver to initiate service installation with the DVB service stations.
  • a multimedia file system may be created made of service stations files identifying the service stations along with the tuning frequency of the service stations.
  • the multimedia file system may then be exported to the multimedia hand-held device where it may be presented to the user of the multimedia hand-held device as a virtual file system.
  • a file-open command may be issued indicating the selected service station and initiating the tuning frequency of the selected service station.
  • the file-open command may be exported to the multimedia receiver device where it may trigger the DVB-receiver to perform the tuning frequency of the selected service station.
  • the multimedia content of the selected service station may be subsequently transported to the multimedia hand-held device where it may be played via the multimedia player.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

This invention relates to a method of managing multimedia service on a multimedia hand-held device including a multimedia player by coupling the multimedia hand-held device to a multimedia receiver device having a Digital Video Broadcasting (DVB) receiver for receiving DVB-broadcast channels from DVB service stations. When coupled a command signal is issued instructing the DVB receiver to initiate service installation with the DVB service stations. At the multimedia receiver device side a multimedia file system made of service stations files identifying the service stations along with the tuning frequency of the service stations. The multimedia file system is then exported to the multimedia hand-held device where it is presenting to the user of the multimedia hand- held device as virtual file system. When selecting a file from the virtual file system a file- open command is issued indicating the selected service station and the tuning frequency of the selected service station. The file-open command is exported to the multimedia receiver device where it triggers the DVB-receiver to the tuning frequency of the selected service station. The multimedia content of the selected service station is subsequently transported to the multimedia hand- held device where it is played via the multimedia player.

Description

A method of managing multimedia service on a multimedia hand- held device
FIELD OF THE INVENTION
The present invention relates to a method and a system for managing multimedia service on a multimedia hand-held device including a multimedia player.
BACKGROUND OF THE INVENTION
Mobile TV's devices such as mobile phones and different types of PDA's are increasingly becoming popular all over the world, especially in Europe and some Asian countries. The most popular broadcasting standard for Mobile TV is the Digital Video Broadcasting-Handheld standard (DVB-H). DVB-H provides an efficient way of carrying multimedia service over digital terrestrial broadcasting networks to such mobile TV's devices. At the time of service/channel installation in a DVB-H based module, a program map is created which contains the list of all available services, e.g. CNN, Star movies, Star sports, etc. The current set of DVB-H modules is mostly embedded in the mobile TV devices. This has the drawback that the current set of mobile TV's devices needed for carrying out such multimedia services are high end devices mobile telephones or high-end portable multimedia receivers with built in Mobile TV facility. However, today many users already possess portable devices and other types of PDA's having built therein a media player. However, this is not necessary to allow the users to access mobile TV's. Thus, in order to watch a mobile TV the user must buy a more costly device having the necessary technical features. Since integration of DVB-H module inside a Mobile Phone is a complex and costly task (wireless interference, power consumption, increase in size, cost of gadget), only very high end mobile phones (3 G phones) end up integrating this facility as part of their mobile phone architecture. This effectively deprives low end mobile phones and portable devices from having Mobile TV functionality inspite of having a media player functionality. Moreover, the users already have a good collection of Mobile phones and Portable devices. There is no added incentive for a user to buy one more costly high end gadget just to see mobile TV. The current set of DVB-H modules are mostly embedded in the mobile TV's, which puts limitation on making handheld devices DVH-H enabled on adhoc basis. Thus, there is a need for a method and a system that allows users to use their existing portable devices that are non-high end devices having built therein media players as portable TV's devices.
BRIEF DESCRIPTION OF THE INVENTION
The object of the present invention is to overcome the above mentioned drawbacks by providing a method and a system that allows implementing portable devices having that are non-high end devices but that are provided with a media player to be used as portable TV's devices. According to one aspect the present invention relates to a method of managing multimedia service on a multimedia hand-held device including a multimedia player, the method comprising: coupling the multimedia hand-held device to a multimedia receiver device, the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver for receiving multimedia content broadcasted from DVB service stations, where in response to the coupling a command signal is issued instructing the DVB receiver to initiate service installation with the DVB service stations, generating, at the multimedia receiver device, a multimedia file system comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, exporting the multimedia file system to the multimedia hand-held device where it is presenting to the user of the multimedia hand-held device as virtual file system, wherein in response to selecting a file from the virtual file system a file-open command is issued indicating the selected service station and the tuning frequency of the selected service station, the file-open command subsequently being exported to the multimedia receiver device where it triggers the DVB-receiver to the tuning frequency of the selected service station, the broadcasted multimedia content of the selected service station subsequently being transported to the multimedia hand-held device via the receiver device where it is played through the multimedia player. Accordingly, the multimedia hand-held device is insulated from DVB related details as the mapping to files and channels are handled completely by the DVB receiver device. Users that already possess mobile device having built therein a media player do thus no longer have to invest in costly high-end devices (with features such as 3 G phones, High resolution Digital Camera, WiFi, GPS, bigger LCD, Video Playback, VoIP client, Huge built-in memory) to watch mobile TV instead can have a simple plug-n-play feature to watch TV. Thus, the method provides DVB functionality on a wide range of device. Sending the multimedia content of the selected service station via the receiver device is typically performed by buffering/storing the multimedia content (video stream) temporarily in the receiver device and then exported to the multimedia hand-held device.
In one embodiment, the multimedia content is converted to a mpeg4 file format at the receiver device side and transported to the multimedia hand-held device in mpeg 4 file format.
Accordingly, a file format is provided which allows nearly all existing portable devices having built therein a media player to watch TV.
In one embodiment, the multimedia hand-held device is selected from: mobile telephones, personal digital assistant devices (PDA's), mobile TV's, and - digital cameras.
According to another aspect, the present invention relates to a computer program product for instructing a processing unit to execute the above mentioned method steps when the product is run on a computer.
Accordingly, it is now possible to upgrade mobile phones/ portable devices simply by installing this computer program on many existing devises thus saving the user from investing in more expensive portable TV devices.
According to still another aspect, the present invention relates to a Digital Video Broadcasting (DVB) receiver device adapted to manage multimedia service on a multimedia hand-held device including a multimedia player, the DVB receiver device comprising: a coupling means for coupling the DVB receiver to the multimedia hand-held device, a Digital Video Broadcasting (DVB) receiver for receiving multimedia content from DVB-broadcast channels from DVB service stations, - a storage medium for temporarily storing the received multimedia content broadcasted from the DVB-service stations, a processor adapted to generate a multimedia file system based on the received DVB-broadcast channels from the DVB service stations, the file system linking the DVB- broadcast channels with the tuning frequency of the broadcast stations, the processor further being adapted to export the file system to the multimedia hand-held device via the coupling means as a virtual file system, the processor further being adapted to receive a file-open command from the multimedia hand-held device indicating the DVB-broadcast channels the user of the multimedia hand- held device whishes to see and tune the DVB receiver to the associated tuning frequency and forward the temporarily stored multimedia content to the multimedia hand-held device.
In one embodiment, DVB receiver device is a hand held receiver device (DVB-H).
Accordingly, the user can easily carry the receiver device with him and plug it into the multimedia hand- held device anytime and anywhere. Such a hand-held device may be selected from as an example PDAs, mobile phones, cameras and any type of hand- held device having built in media player.
According to yet another aspect, the present invention relates to a system for managing multimedia service on a multimedia hand-held device including a multimedia player, the system comprising: coupling means for coupling the multimedia hand-held device to a multimedia receiver device, the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver for receiving multimedia content broadcasted from DVB service stations, the coupling resulting in a command signal instructing the DVB receiver to initiate service installation with the DVB service stations, a multimedia file system generator generating, at the multimedia receiver device, a multimedia file system comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, an exporting means for exporting the multimedia file system to the multimedia hand- held device where it is presented to the user of the multimedia hand- held device as virtual file system, wherein in response to selecting a file from the virtual file system a file-open command is issued indicating the selected service station and the tuning frequency of the selected service station, the file-open command subsequently being exported to the multimedia receiver device where it triggers the DVB-receiver to the tuning frequency of the selected service station, the multimedia content of the selected service station subsequently being transported to the multimedia hand-held device via that receiver device where it is played through the multimedia player. The DVB may be integrated in all kinds of stationary or mobile devices. Example of such stationary devices is a PC computer, DVD-player, Set Top Boxes, DVD Recorders and the like. Accordingly, all variants of DVB may be used, e.g. Terrestrial, Cable, Satellite, in addition to all kinds of DVB-H handheld. In one embodiment, the coupling means is a Universal Serial Bus (USB).
Accordingly, since many of the existing multimedia hand- held devices are provided with USB port the user can use its existing device as a mobile TV simply by plugging its device to the receiver device and playback any DVB channel as a file, i.e. a mobile TV is provided via the USB peripheral. Also, USB peripheral is quite cheap today and therefore the user of the device is spared with investing in new and more expensive mobile TV, such as TV enabled phone/PMP. Thus an economical solution is provided saving substantial costs to user and therefore protecting their investment in their existing multimedia hand-held devices. Also, this allows adding few zapping keys on the module itself. This results in less dependency on the multimedia hand-held devices for zapping DVB-H channels. The USB host device is now insulated from the DVB-H related details as the mapping to files and channels are handled completely by the DVB-H USB module. One way of creating such "zapping behavior" is by adding 2 small extra keys (P+/P-) in module itself so that it can close the existing file and open next file thereby simulating a TV channel zapping behavior. In one embodiment, the coupling means is a memory card interface.
Thus another way is provided for exporting channels as files to the multimedia hand-held devices. Such memory card interfaces may e.g. include CF, SD, memory stick. Since memory card interface is very popular with mobile/portable devices, inserting such a memory card with embedded DVB-H receiver will help user to avail of Mobile TV functionality. This mechanism is typically the same as one specified for USB. Instead of exporting DVB channels as USB mass storage FAT file system, it will be exported as CF Card FAT file system, SD Card FAT file system.
In one embodiment, the coupling means is a wireless communication link. This can be all kinds of wireless communication protocols such as Bluetooth, WiFi, UWB (Ultra Wide Band) and IEEE 1394 are other possibilities.
The aspects of the present invention may each be combined with any of the other aspects. These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the invention will be described, by way of example only, with reference to the drawings, in which:
Fig. 1 shows a flowchart of a method according to the present invention of managing multimedia service on a multimedia hand-held device including a multimedia player,
Fig. 2 shows an example of multimedia hand-held comprising a USB port and a USB based DVB-receiver device,
Fig. 3 shows a system according to the present invention comprising a multimedia hand- held device and a receiver device, and
Fig. 4 shows an example of a file mapping system that is created at the receiver device side.
DESCRIPTION OF EMBODIMENTS Figure 1 shows a flowchart of a method according to the present invention of managing multimedia service on a multimedia hand-held device including a multimedia player. Such a device may e.g. be a mobile telephone, a personal digital assistant device (PDA), a mobile TV, a digital camera, media player and the like.
The multimedia hand-held device is coupled to a multimedia receiver device (Sl) 101 comprising a Digital Video Broadcasting receiver for receiving DVB-broadcast channels from DVB service stations. This coupling is in one embodiment done via Universal Serial Bus (USB) mass storage interface by plugging the multimedia receiver device to the multimedia hand- held device. The USB standard defines a Mass Storage Device Class based upon numerous documents. The documents are publicly accessible at http://www.usb.org/devclopcrs/dcvclass docs#approvcd. Specifically, the Universal Serial Bus Mass Storage Specification Overview Revision 1.2 dated June 23, 2003 addresses an overview of the Universal Serial Bus Mass Storage Class Specifications. For high-speed devices the Universal Serial Bus Mass Storage Class Bulk-Only Transport Specification Revision 1.0 dated September 31, 1999 addresses Bulk-Only Transport, or in other words, transport of command, data, and status occurring solely via Bulk endpoints.
In another embodiment, the coupling is done via any kind of memory card interface such as CF, SD memory stick, but such memory cards support FAT (File Allocation Table) file system as primary interface with hand-held device. So the primary interface from a mobile/portable device to a memory card will be FAT file system. The plugging results in that a command signal is issued instructing the DVB receiver to initiate with the DVB service stations. As an example, the power supply of the multimedia receiver device may be connected to a microcontroller comprised in the multimedia receiver device such that when the multimedia receiver device is plugged to the multimedia hand-held device the microcontroller issues a piece of code or the like instructing the DVB to contact to the DVB service stations.
At the multimedia receiver device a multimedia file system is generated (S2) 103, where the multimedia file system comprises DVB service stations files identifying the service stations along with the tuning frequency of the service stations. This will be discussed in more details later in figure 4. In other words the powering up of the device may allow the DVB service stations to first be identified and located prior to the initiation of any action taken to export the DVB service stations identified via a multimedia file system. As such the device may be in a state in which it is fully aware of the DVB service stations that are to be exported via the multimedia file system. This file system is exported to the multimedia hand-held device (S3) 105 as a virtual file system, where it is presented to the user of the multimedia hand-held device, typically by displaying it the screen on the user's hand-held device or via other means such as speech commands. In other words, the virtual file system is virtually populated with the DVB service stations identified and presented in, for example, the format of a FAT file system. Accordingly, the user has on the screen of the display device the TV channels he/she can access, e.g. "channel 1" is Eurosport, "channel 2" is CNN, "Channel 3" is BBC etc. The user can now select on of the channels via different means, e.g. by scrolling between the different channels and pressing an enter command, or via touch button interface, or speech command and the like, select the channel he/she is interested. By selecting file from the virtual file system a file-open command is issued
(S4) 107 and exported to the multimedia receiver device, where it triggers the DVB-receiver to the tuning frequency of the selected service station associated to the selected file. In other words any attempt to read at least one sectors worth of information located within the range of sectors comprising one of the different channels triggers the device to tune to the required TV channel and receive live TV information from the channel. The broadcasted multimedia content of the selected service station is subsequently transported to the receiver device where it is first buffered/stored temporarily in the receiver device and then exported to multimedia hand- held device (S5) 109 where it is played to the user through the multimedia player. In one embodiment, the multimedia content is transported to the receiver device where it is converted to mpeg4 format and exported to the multimedia hand-held device as mpeg 4 files which are then played with the built in media player.
Figure 2 shows an example of an implementation of the present invention, where the multimedia hand-held device 201 comprises a USB port 203 and where the receiver device 200 is USB 204 based hand held receiver device (DVB-H) comprising a USB slave 204 and an antenna 209 for communicating with the various service stations 206-208. The receiver device 200 may just as well be a stationary device (not shown here) comprised in e.g. a central server, where the coupling between multimedia hand- held device 201 and the receiver device is via a wireless communication channel (not shown) or via a wired communication channel.
In this example, the DVB-H installation is triggered when the DVB-H USB slave 204 is plugged into the multimedia hand- held device 201, e.g. a mobile phone or any kind of a PDA having a medial player installed. The DVB-H is powered through the USB host 203 and connected to a microcontroller comprised in the DVB-H receiver 200. The microcontroller triggers the DVB-H receiver to connect to the service stations 206-208 via a communication channel 205. When the channels are detected, file names are created with channel names, e.g. "CNN", "Eurosport" etc. The files are created in read only mode for the multimedia hand- held device 201 and only DVB-H USB Device has permission to write. This is to ensure that the file structures are not tampered by the multimedia hand-held device 201. The files are exported as a USB mass storage device class device comprising a file system, for example a FAT file system, to the multimedia hand-held device 201. As the file system is created by the DVB-H USB device 200, the sector information of the storage space in the receiver device is known to the DVB-H USB device. The receiver device creates a file system when it is plugged into a multimedia hand-held device such as a mobile phone. Thus, the DVB-H USB device 200 needs to be aware of mapping between file names and their physical address/location in memory. The multimedia hand-held device 201 exposes these channel files to the user e.g. via displaying them on a display screen.
When the user selects a Channel file, a file-open command is issued at the multimedia hand- held device 201 and exported to the receiver device 300. On receipt of this command, the s/w on the DVB-H USB triggers the tuning of the DVB-H receiver to the corresponding service frequency, and starts dumping the data packets into the fixed buffer space allocated to store the IP datagrams, where it is stored temporarily. The FileRead actions are done on the buffer and the IP datagrams are passed on to the multimedia hand-held device 201 from DVB-H USB device 200. This way, the Media player Application on the multimedia hand- held device 201 can read the channel file as though it is a mp4 file stored on any USB storage device, such as a USB stick, and play it to the user. The End-Of-File (EOF) may never need to be sent as it is live streaming and the host needs to explicitly close the file before opening new file. As only one channel will be watched by the user at a time, the same memory sectors can be shared between all the channels. However, measures should be taken to ensure that the individual channels may be selected. In other words, all the Channel X.mp4 files point to the same buffer, i.e. same sectors on the h/w, acting as links (like soft links in UNIX systems). Zapping experience to user may achieved through the play list mechanism. It is also possible to create two small buttons (P+/-) on module itself to switch from one mpeg4 channel file to another (creates an illusion of zapping).
Figure 3 shows a system 3000 according to the present invention comprising a multimedia hand- held device 304 and a receiver device 300.
In this embodiment the receiver device 300 comprises an antenna 310, a processor (P) 311, a DVB-H tuner (DVB-H) 301 and an exporting means (E M) 312, which in case of wireless communication (e.g. communication like WiFi, Bluetooth) is a transmitter (T) 312. The receiver device further comprises a memory 302 for e.g. storing the above mentioned file system, i.e. the name of the various service stations, the tuning frequency and the memory sector information and for storing temporarily the received multimedia content broadcasted from the service stations, where the video stream is first buffered/ stored temporarily prior to be exported to the multimedia hand- held device 304. The receiver device further comprises a coupling means (C M) 303 for coupling the multimedia receiver device 300 to a corresponding coupling means (C M) 305 of the multimedia hand-held device 304.
In this embodiment, the multimedia hand-held device 304 comprises in addition to said coupling means (C M) 305 a media player (M-Pl.) 306, a display (D) 307 and an interface means (I M) 308 for allowing the user of the device 300 to interact with the receiver device 304. This can as an example be a keyboard, a touch button interface, a speech command system and the like.
The processor (P) 311 is adapted to generate a multimedia file system based on the received DVB-broadcast channels from the DVB service stations. The file system is adapted to link the DVB-broadcast channels with the tuning frequency of the broadcast stations. Also, the processor is adapted to instructing the exporting means (E M) 312 export the file system to the multimedia hand- held device 304 via the coupling means 303, 305 as a virtual file system. Also, the role of the processor (P) is to receive a file-open command from the multimedia hand- held issued when the user of the multimedia hand- held device 304 selects a broadcast channel to watch by selecting one of the files displayed virtually. The processor then tunes301 to the tuning frequency of the selected broadcast channel and forward the received data packets to the multimedia hand-held device.
In one embodiment, the coupling means (C M) 303 comprised in the receiver device 300 is a USB slave and the coupling means (C M) 305 of the multimedia hand- held device 304 is a USB master.
In another embodiment, the coupling means (C M) 303, 305 is a memory card interface, such as a CF, SD memory stick wherein the service channels are exported as files in their respective file system instead of USB mass storage. In still another embodiment, the coupling means (C M) 303, 305 is wireless communication means that communicates through different communication protocols such as blue tooth and the like.
Figure 4 shows an example of a file mapping system that is created at the receiver device side 300. As depicted here, the file system is made of three columns, the first column being the channel names (Ch. Na.) 401, the second column being the channel frequency of the channel (Cha. Freq.) 402 and the third column being the memory sector information (Mem. Sect.) 403 of the channels, i.e. each line links the channels with the channel frequency and the memory sector information. This matrix like file system is exported to the multimedia hand-held device as a virtual file system in a read only mode. The file system may just as well only include the channel names instead of being represented with all these detail information, or be presented virtually to the user via the logos of the different channels/service stations.
As mentioned previously, when the user selects a given channel, e.g. via touch button or keyboard interface or via a speech command, a file-open command is issued indicating the selected service station/channel. This command is exported over to the receiver device 300 which then triggers the DVB-H tuner automatically to the associated channel frequency.
Certain specific details of the disclosed embodiment are set forth for purposes of explanation rather than limitation, so as to provide a clear and thorough understanding of the present invention. However, it should be understood by those skilled in this art, that the present invention might be practiced in other embodiments that do not conform exactly to the details set forth herein, without departing significantly from the spirit and scope of this disclosure. Further, in this context, and for the purposes of brevity and clarity, detailed descriptions of well-known apparatuses, circuits and methodologies have been omitted so as to avoid unnecessary detail and possible confusion.
Reference signs are included in the claims, however the inclusion of the reference signs is only for clarity reasons and should not be construed as limiting the scope of the claims.
In summary an embodiment of the invention relates to a method of managing multimedia service on a multimedia hand-held device including a multimedia player by coupling the multimedia hand-held device to a multimedia receiver device having a Digital Video Broadcasting (DVB) receiver for receiving DVB-broadcast channels from DVB service stations. When coupled a command signal may be issued instructing the DVB receiver to initiate service installation with the DVB service stations. At the multimedia receiver device side a multimedia file system may be created made of service stations files identifying the service stations along with the tuning frequency of the service stations. The multimedia file system may then be exported to the multimedia hand-held device where it may be presented to the user of the multimedia hand-held device as a virtual file system. When selecting a file from the virtual file system a file-open command may be issued indicating the selected service station and initiating the tuning frequency of the selected service station. The file-open command may be exported to the multimedia receiver device where it may trigger the DVB-receiver to perform the tuning frequency of the selected service station. The multimedia content of the selected service station may be subsequently transported to the multimedia hand-held device where it may be played via the multimedia player.

Claims

CLAIMS:
1. A method of managing multimedia service on a multimedia hand- held device including a multimedia player, the method comprising: coupling the multimedia hand-held device to a multimedia receiver device (101), the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver for receiving multimedia content broadcasted from DVB service stations, where in response to the coupling a command signal is issued instructing the DVB receiver to initiate service installation with the DVB service stations, generating, at the multimedia receiver device, a multimedia file system (103) comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, exporting the multimedia file system to the multimedia hand- held device (105) where it is presenting to the user of the multimedia hand-held device as virtual file system, wherein in response to selecting a file from the virtual file system (107) a file- open command is issued indicating the selected service station and the tuning frequency of the selected service station, the file-open command subsequently being exported to the multimedia receiver device (109) where it triggers the DVB-receiver to the tuning frequency of the selected service station, the broadcasted multimedia content of the selected service station subsequently being transported to the multimedia hand-held device via the receiver device where it is played through the multimedia player.
2. A method according to claim 1, wherein the multimedia content is at the receiver device side converted to a mpeg4 file format and transported to the multimedia hand-held device in mpeg 4 file format.
3. A method according to claim 1, wherein the multimedia hand-held device is selected from: mobile telephones, personal digital assistant devices (PDAs), mobile TVs, and digital cameras.
4. A computer program product for instructing a processing unit to execute the method step of claim 1 when the product is run on a computer.
5. A Digital Video Broadcasting (DVB) receiver device (300) adapted to manage multimedia service on a multimedia hand-held device including a multimedia player, the DVB receiver device comprising: - a coupling means (303) for coupling the DVB receiver to the multimedia hand-held device, a Digital Video Broadcasting (DVB) receiver (301) for receiving multimedia content from DVB-broadcast channels from DVB service stations (206-208), a storage medium (302) for temporarily storing the received multimedia content broadcasted from the DVB-service stations, a processor (311) adapted to generate a multimedia file system based on the received DVB-broadcast channels from the DVB service stations, the file system linking the DVB-broadcast channels with the tuning frequency of the broadcast stations, the processor further being adapted to export the file system to the multimedia hand-held device via the coupling means as a virtual file system, the processor further being adapted to receive a file- open command from the multimedia hand-held device indicating the DVB-broadcast channels the user of the multimedia hand-held device whishes to see and tune the DVB receiver to the associated tuning frequency and forward the temporarily stored multimedia content to the multimedia hand-held device.
6. A DVB receiver device according to claim 5, wherein the DVB receiver device is a hand held receiver device (DVB-H).
7. A system (3000) for managing multimedia service on a multimedia hand-held device (304) including a multimedia player, the system comprising: coupling means (303, 305) for coupling the multimedia hand-held device (304) to a multimedia receiver device (300), the multimedia receiver device comprising a Digital Video Broadcasting (DVB) receiver (301) for receiving multimedia content broadcasted from DVB service stations (206-208), the coupling resulting in a command signal instructing the DVB receiver (301) to initiate service installation with the DVB service stations (206-208), a multimedia file system generator (311) generating, at the multimedia receiver device, a multimedia file system comprising DVB service stations files identifying the service stations along with the tuning frequency of the service stations, an exporting means (312) for exporting the multimedia file system to the multimedia hand- held device where it is presented to the user of the multimedia hand-held device as virtual file system, wherein in response to selecting a file from the virtual file system a file-open command is issued indicating the selected service station and the tuning frequency of the selected service station, the file-open command subsequently being exported to the multimedia receiver device where it triggers the DVB-receiver to the tuning frequency of the selected service station, the multimedia content of the selected service station subsequently being transported to the multimedia hand-held device via that receiver device where it is played through the multimedia player.
8. A system according to claim 5, wherein the coupling means is a Universal
Serial Bus (USB).
9. A system according to claim 5, wherein the coupling means is a memory card interface.
10. A system according to claim 5, wherein the coupling means is a wireless communication link.
PCT/IB2008/053949 2007-10-03 2008-09-29 A method of managing multimedia service on a multimedia hand-held device WO2009044323A2 (en)

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