WO2005069618A1 - Systeme audio/video portatif destine a des dispositifs mobiles - Google Patents

Systeme audio/video portatif destine a des dispositifs mobiles Download PDF

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Publication number
WO2005069618A1
WO2005069618A1 PCT/GB2005/000096 GB2005000096W WO2005069618A1 WO 2005069618 A1 WO2005069618 A1 WO 2005069618A1 GB 2005000096 W GB2005000096 W GB 2005000096W WO 2005069618 A1 WO2005069618 A1 WO 2005069618A1
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WO
WIPO (PCT)
Prior art keywords
audio
data
signal
mobile
visual
Prior art date
Application number
PCT/GB2005/000096
Other languages
English (en)
Inventor
Jason Rees
Original Assignee
Jason Rees
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jason Rees filed Critical Jason Rees
Publication of WO2005069618A1 publication Critical patent/WO2005069618A1/fr

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Classifications

    • 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
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
    • 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
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • 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
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • 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
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • 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
    • H04N21/44—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
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4425—Monitoring of client processing errors or hardware failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • 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
    • 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
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards

Definitions

  • the invention relates to an audio-visual data system for a mobile data processing device having integrated personal area networking means and to mobile television apparatus incorporating the audio-visual data system.
  • a mobile data processing device is to be understood to mean any of a mobile telephone, a mobile smartphone, a personal digital assistant (PDA), a pocket personal computer (PC), a handheld PC, a hiptop PC and an instant messenger.
  • PDA personal digital assistant
  • PC pocket personal computer
  • handheld PC handheld PC
  • hiptop PC hiptop PC
  • mobile telephones and mobile smartphones are often provided with games.
  • the games are limited in their complexity by the memory capacity of the mobile telephone or smartphone.
  • Mobile telephones, mobile smartphones, PDAs, pocket PCs, handheld PCs and hiptop PCs are generally provided with internet access, enabling a user to access internet web sites, from where short audio recordings or short video clips may be downloaded.
  • the internet connection may also be used to send and receive emails.
  • internet access is obtained via the mobile telephony signal, so the length and quality of audio or video recording which may be downloaded is limited by the bandwidth of the mobile telephony signal.
  • the user must pay, often at a premium rate, to access the internet and download data, and the mobile telephone or smartphone is unable make or receive calls during this time.
  • PDAs pocket PCs, handheld PCs and hiptop PCs are generally provided with internet access via a computer, connected to a telephone landline or a cable modem, or directly through a mobile telephone. These devices can therefore only download audio or video recording when connected to a computer or mobile telephone
  • an audio-visual data system for a mobile data processing device having integrated personal area networking means, the system comprising: an audio-visual data signal source operable to generate an audio-visual data signal; transmitter means operable to transmit the audio-visual data signal to the integrated personal area networking means of the mobile data processing device;, and decoding and routing means, to be provided within the mobile data processing device, for decoding audio-visual data received by the integrated personal area networking means and routing video data to the visual display unit of the mobile data processing device.
  • the audio-visual data signal source and the transmitter means are provided in a base station unit, which is most preferably portable.
  • the transmitter means preferably has a personal area network signal range or may have a local area network signal range.
  • the audio-visual data signal source preferably comprises: signal input means; signal receiver means coupled to the signal input means; video signal encoder means and audio signal encoder means, both receiving the output of the signal receiver means and being operable to generate corresponding digital data streams; and data stream processor means operable to process a digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the integrated personal area networking means.
  • the audio-visual data signal source is preferably operable to receive a live transmission television signal and to generate a corresponding audio-visual data signal for transmission to the mobile data processing device.
  • the signal input means preferably comprises a television signal antenna.
  • the antenna may be provided within the base station unit or may be at least partially external to the base station unit.
  • the audio-visual data signal source may alternatively or additionally be operable to receive a pre-recorded audio-visual signal, such as that output from a videotape player or a DVD player.
  • the signal input means preferably comprises an electrical signal input port adapted to receive a audio-visual signal transmitted thereto through an electrical cable.
  • the signal receiver means may be an analogue signal receiver means or may be a digital signal receiver means.
  • the signal receiver means preferably comprises signal channel selection means.
  • the signal receiver means may further comprise an amplifier and signal filtering apparatus.
  • the video signal encoder means is preferably operable to generate a digital data stream related to the video content of a received signal.
  • the video signal encoder means is preferably further operable to compress the digital data stream in order to reduce the effective bit rate of the data stream.
  • the data compression is preferably achieved by application of a data compression algorithm, such as H263 or a derivative algorithm of H263, or MPEG4 or a derivative algorithm of MPEG4.
  • the video signal encoder means may comprise a microprocessor or digital signal processor, within which the data compression algorithm is stored, operable to apply the data compression algorithm to the digital data stream.
  • the video signal encoder means may alternatively or additionally comprise a programmable hardware device, or an electronic circuit device, such as an electronic gate-array or an application-specific integrated circuit (ASIC), operable to apply the data compression algorithm to the digital data stream.
  • ASIC application-specific integrated circuit
  • the audio signal encoder means is preferably operable to generate a digital data stream related to the audio content of a received signal.
  • the audio signal encoder means is preferably further operable to compress the digital data stream in order to reduce the effective bit rate of the data stream.
  • the data compression is preferably achieved by application of a data compression algorithm, such as AMR, AAC, MP3, ADPCM or derivative algorithms.
  • the audio signal encoder means may comprise a microprocessor or digital signal processor, within which the data compression algorithm is stored, operable to apply the data compression algorithm to the digital data stream.
  • the audio signal encoder means may alternatively or additionally comprise a programmable hardware device, or an electronic circuit device, such as an electronic gate-array or an application-specific integrated circuit (ASIC), operable to apply the data compression algorithm to the digital data stream.
  • ASIC application-specific integrated circuit
  • the audio-visual data system preferably further comprises a data stream combiner operable to combine the digital data stream outputs from the video signal encoder means and the audio signal encoder means and to process the combined digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the personal area networking means.
  • the format of the combined digital data stream preferably comprises an industry standard format suitable for receipt by the mobile data processing device.
  • the audio-visual data signal source may alternatively or additionally comprise an audio-visual data storage and reader device operable to output pre-recorded audio-visual data
  • the data storage and reader device may be a fixed device, such as a hard disc drive.
  • the data storage and reader device may alternatively comprise a reader device and a removable data storage device, such as a card reader and a Flash memory card.
  • the transmitter means is preferably a wireless transmitter means of a complimentary type to the personal area networking means.
  • the wireless transmitter means preferably comprises a wireless transceiver, which may be radio frequency transceiver, such as a Bluetooth wireless transceiver, or may be an optical transceiver, such as an infrared transceiver.
  • the transmitter means may alternatively comprise a wired transmitter means of a complimentary type to the personal area networking means, and may comprise a wired transceiver.
  • the wired transceiver is preferably connectable to the personal area networking means by means of a serial data link, such as a universal serial bus or a serial data cable.
  • the decoding and routing means is preferably further operable to route audio data to a loud speaker or audio headset connector of the mobile data processing device.
  • the decoding and routing means is preferably further operable to perform error checking and error correction on received audio-visual data.
  • the decoding and routing means is preferably further operable to separate and synchronise the video data and audio data from a received audio-visual data stream.
  • the decoding and routing means is preferably further operable to decode received video data and audio data.
  • the decoding and routing means preferably comprises one or more software programmes provided on the mobile data processing device.
  • the decoding and routing means may alternatively or additionally comprise one or more electronic circuits provided within the mobile data processing device.
  • the transmitter means may further comprise an audio signal transmitter for transmitting the audio data stream to an external audio device, such as an audio speaker, an audio speaker headset or a stereo system.
  • the audio signal transmitter may comprise a wired signal transmitter or a wireless signal transmitter.
  • the wireless signal transmitter may be an optical transmitter means, such as an infrared transmitter, or may be a radio frequency transmitter means, such as a Bluetooth transmitter.
  • the audio-visual data system preferably further comprises video data control means operable to control one or more characteristics, such as brightness, colour or contrast, of the video data transmitted to the mobile telephone.
  • the video data control means is preferably provided within the base station unit.
  • the audio-visual data system preferably further comprises audio data control means operable to control one or more characteristics, such as volume, balance and tone, of the audio data transmitted to the mobile telephone or external audio device.
  • the audio data control means is preferably provided within the base station unit.
  • the video and audio data control means are preferably operated via a command unit provided within the base station unit.
  • the command unit preferably comprises a plurality of command keys operable by a user and may additionally comprise a visual display screen.
  • the video and audio data control means may be operated via the key pad of the mobile data processing device, with commands being transmitted back from the mobile data processing device to the base station unit via the personal area networking means.
  • the audio-visual data system may further comprise audio-visual data recorder means operable to record audio-visual data.
  • the audio-visual data may originate from a television transmission signal or from a digital camera provided on the mobile data processing device.
  • mobile television apparatus comprising: a mobile data processing device having integrated personal area networking means; and an audio-visual data system according to the first aspect of the invention.
  • the mobile data processing device may be a mobile telephone, a mobile telephone, a mobile smartphone, a personal digital assistant, a pocket personal computer, a handheld personal computer, a hiptop personal computer or an instant messenger.
  • the integrated personal area networking means preferably comprises a transceiver.
  • the transceiver may comprise an optical transceiver, such as an infra-red transceiver, or a radio frequency transceiver, such as a Bluetooth transceiver.
  • the personal area networking means may alternatively comprise a digital signal input device or a digital signal input/output device.
  • Figure 1 is a schematic representation of an audio-visual data system for a mobile data processing device according to a first embodiment of the invention
  • Figure 2 is a schematic representation of an audio-visual data system for a mobile data processing according to a second embodiment of the invention
  • Figure 3 is a schematic representation of mobile television apparatus according to a third embodiment of the invention.
  • Figure 4 is a schematic representation of mobile television apparatus according to a fourth embodiment of the invention.
  • Figure 5 is a schematic representation of mobile television apparatus according to a fifth embodiment of the invention.
  • a first embodiment of the invention provides an audio-visual data system 10 for a mobile personal digital assistant (PDA) (not shown) having integrated personal area networking means in the form of a radio frequency (Bluetooth) wireless transceiver.
  • PDA mobile personal digital assistant
  • Bluetooth radio frequency
  • the audio-visual data system 10 comprises an audio-visual data signal source 12, operable to generate an audio-visual data signal, and transmitter means in the form of a radio frequency (Bluetooth) wireless transmitter 14.
  • the audiovisual data system 10 also comprises decoding and routing means, which in this example is implemented as a computer programme stored within the memory of the PDA.
  • the audio-visual data signal source 12 comprises signal input means in the form of an analogue antenna 16 for receiving analogue television signals, a television signal receiver 18, a video signal encoder 20, an audio signal encoder 22 and data stream processor means 24.
  • the audio-visual data signal source 12 and the wireless transmitter 14 are provided within a portable base station unit 26.
  • the antenna 16 is located within the base station unit 26, but it will be appreciated that the antenna 16 may alternatively be provided partially or completely externally to the base station unit 26.
  • the television signal receiver 18 is an analogue television signal receiver and comprises an amplifier 28, a tuner 30 and a demodulator 32.
  • Analogue television signals received by the antenna 16 are amplified by the amplifier 28 and filtered by the tuner 30 in order to select a channel to be viewed.
  • the audio-visual data (being the television picture plus any sound) is then demodulated from the carrier signal by the demodulator 32.
  • the audio-visual data system 10 is provided with a video and audio data control unit 34, operable to control the brightness, colour and contrast of the video data, and the volume, balance and tone of the audio data.
  • the video and audio data control unit 34 is operated via a command unit (not shown) having a plurality of command keys operable by a user and a visual display screen on which video and audio data status information is provided.
  • the control unit 34 and the command unit are provided within the base station unit 26.
  • the antenna 16 and the television signal receiver 18 may alternatively be digital devices for receiving digital television signals.
  • the video signal encoder 20 is operable to produce a stream of digital data related to the video content of the audio-visual data output from the TV signal receiver 18.
  • the video signal encoder 20 is additionally operable to compress the digital video data stream in order to reduce the effective bit rate of the video data stream.
  • the video signal encoder 20 comprises a digital signal processor and the signal processing is carried out by computer programmes running within the digital signal processor.
  • the data compression is performed by application of the H263 data compression algorithm, but it may alternatively be performed by application of an H263 derivative algorithm, or an MPEG4 or derivative algorithm.
  • the audio signal encoder 22 is operable to produce a stream of digital data related to the audio content of the audio-visual data output from the TV signal receiver 18.
  • the audio signal encoder 22 is additionally operable to compress the digital audio data stream in order to reduce the effective bit rate of the audio data stream.
  • the audio signal encoder 22 comprises a digital signal processor and the signal processing is carried out by computer programmes running within the digital signal processor.
  • the data compression is performed by application of the AMR data compression algorithm, but it may alternatively be performed by application of an AMR derivative algorithm, or the MP3, AAC, or ADPCM compression algorithms or one of their derivative algorithms.
  • the data stream processor means 24 comprises a digital data stream combiner.
  • the stream combiner 24 is operable to combine the digital video data stream and the digital audio data stream.
  • the stream combiner 24 also processes the combined digital data stream into a data format, suitable for transmission by the wireless transceiver 14.
  • the combined digital data stream may be put into a format set by the 3 rd Generation Partnership Project (3GPP), a RealPlayer (produced by RealNetworks Inc.), or pvPlayer (produced by PacketVideo Corporation) data format.
  • 3GPP 3 rd Generation Partnership Project
  • RealPlayer produced by RealNetworks Inc.
  • pvPlayer produced by PacketVideo Corporation
  • the decoding and routing means which in this example takes the form of computer programmes stored and run within the PDA, is operable to decode and route a combined data stream received by the wireless transceiver on the PDA from the wireless transmitter 14 on the base station unit 26.
  • the decoding and routing means further comprise programmes which perform error checking and correction on a received data stream, and to separate out the video data stream and the audio data stream.
  • the computer programmes may be loaded onto the PDA from a personal computer, or downloaded from an internet website.
  • a second embodiment of the invention is shown in Fig.2 and provides an audiovisual data system 40 for a mobile data processing device in the form of a mobile smartphone or a mobile telephone (not shown).
  • the audio-visual data system 40 of this embodiment is substantially the same as the system 10 of the previous embodiment, with the following modifications.
  • the same reference numerals are retained for corresponding features.
  • the transmitter means comprises a wired transceiver 42, the output signal from which is transmitted via a universal serial bus (USB) cable 44 to a digital data input socket on the mobile smartphone/telephone.
  • the audio-visual data signal source 12 of this embodiment further comprises an audio-visual data storage device player in the form of a memory card reader 46 operable to read and output pre-recorded audio-visual data provided on a data storage device in the form of a Flash memory card (not shown).
  • the prerecorded audio-visual data may take the form of one or more television programs and/or films.
  • the audio-visual data provided on the Flash card comprises a combined digital video and audio data stream, of the type output from the data stream processor 24, which is passed directly to the transceiver 42 for transmission.
  • the video and audio data control unit 34 is further operable to control the brightness, colour and contrast of the video data, and the volume, balance and tone of the audio data output from the card reader 46.
  • FIG. 3 shows mobile television apparatus 50 according to a third embodiment of the invention.
  • the mobile television apparatus 50 comprises an audio-visual data system 52 and a mobile telephone 54.
  • the mobile telephone 54 is a mobile telephone having an integrated radiofrequency (Bluetooth) wireless transceiver 56.
  • the mobile telephone 54 has a display screen 58, an loud speaker 60 and a digital signal processor 62.
  • the audio-visual data system 52 is substantially the same as the systems 40 of the previous embodiment, with the following modifications.
  • the same reference numbers are retained for corresponding features.
  • the transmitter means comprises radiofrequency (Bluetooth) wireless transceiver 66.
  • the audio-visual data signal source 12 of this embodiment comprises a remotely operable command unit 64 which operates the video and audio data control unit 34.
  • the command unit 64 is operated via the keypad (not shown) on the mobile telephone 54, with commands being routed from the keypad, through the wireless transceiver 56 to the wireless transceiver 66 on the base station 26, and on to the command unit 64.
  • a combined digital data stream transmitted by the transceiver 66 on the base station to the transceiver 56 on the mobile telephone 54 is processed within the digital signal processor 62.
  • the digital signal processor 62 runs the decoding, routing and error checking/correction programmes (application programmes A), which are stored in the mobile telephone memory (not shown), in communication with the mobile telephone's proprietory software (P). Once the data has been error checked and corrected (if necessary), and the video and audio data decoded, the video data is routed to the display screen 58 and the audio data is routed to the audio speaker 60.
  • FIG. 4 shows a mobile television apparatus 70 according to a fourth embodiment of the invention.
  • the apparatus 70 is substantially the same as the apparatus 50 of the previous embodiment, with the following modifications.
  • the same reference numerals are retained for corresponding features.
  • the decoded audio data is routed to an audio output 72 wired to an audio headset 74.
  • the card reader 46 (Fig. 3) is replaced by a combined audio-visual data storage and reader device in the form of a read/write hard disc unit 76.
  • the hard disc unit is operable to output pre-recorded audio-visual data stored on a readable/writeable memory disc (not shown) within the hard disc unit 76.
  • the hard disc unit 76 is additionally operable to record audio-visual data received by the transceiver 66 on the base station 26 from the transceiver 56 on the mobile telephone 54.
  • This audio-visual data may comprise images or video clips recorded by an internal digital camera (not shown) within the mobile telephone 54.
  • the hard disc unit 76 may also be used to record audio-visual data in the form of TV programmes received through the antenna 16.
  • the TV transmission is processed by the audio-visual data signal source 12 as described above, and then routed from the transceiver 66 to the hard disc unit 76, where it is recorded/stored.
  • FIG. 5 shows a mobile television apparatus 80 according to a fifth embodiment of the invention.
  • the apparatus 80 is substantially the same as the apparatus 70 of the previous embodiment, with the following modifications.
  • the same reference numerals are retained for corresponding features.
  • the audio output 72 and audio headset 74 are replaced by an audio speaker 60 provided on the mobile telephone 54 and a wireless audio headset 82.
  • the wireless audio headset 82 incorporates a wireless radiofrequency (Bluetooth) receiver operable to receive audio data.
  • the audio data is transmitted to the headset from the transceiver 56 on the mobile telephone 54.
  • the audio data may alternatively be transmitted from a transceiver on the base station 26, which may be the transceiver 66 or a separate, dedicated wireless transmitter.
  • the headset 82 is also provided with data processing means (not shown) operable to process and decode the audio data for playing through the speakers of the headset 82.
  • data processing means operable to process and decode the audio data for playing through the speakers of the headset 82.
  • a user can select, via the telephone key pad, whether to play audio data through the audio speaker 60 or through the headset 82.
  • the Flash memory card may be replaced by a different type of memory device, and the card reader may be replaced by a correspondingly different reader device.
  • the memory device may be fixed or removable. Different types of wireless transmitter, transceiver and receiver may be used to those described.
  • the audio data signal may alternatively be output to an audio speaker or to the auxiliary input of a stereo system.
  • the audio data signal may alternatively be routed to an audio headset, audio speaker or stereo system from a transmitter on the base station, which may be a wireless transmitter or a wired transmitter.
  • the decoding and routing means may alternatively, or additionally, comprise electronic circuitry in place of all or part of the computer programmes described.
  • the mobile television apparatus of Figures 3 to 5 is shown having a single mobile telephone, it will be appreciated that more than one mobile telephone may receive the data stream output from a single audio-visual data system.
  • a single audio-visual data system may be used to transmit audio-visual data to different types of mobile data processing devices simultaneously.
  • the audio data may be received by more than one wireless audio headset, enabling more than one person to listen to the audio signal whilst watching the video data displayed on the display screen of one mobile telephone.
  • the described embodiments provide various advantages, including enabling a user to watch live television broadcast programs of unlimited duration, or prerecorded television programs or films of much greater duration than can be downloaded from an internet web site.
  • the telephone functionality of a mobile telephone or smart phone can remain active during use of the mobile television apparatus since the audio-visual data is received by a separate receiver to the microwave receiver used to send and receive telephony signals.
  • the mobile television apparatus is significantly more compact in size compared to miniature, portable televisions, and provides the additional facility to watch prerecorded films or programs.
  • the mobile television apparatus also enables users of mobile data processing devices incorporating digital cameras to store large numbers of digital images or a digital video recording within the audio-visual data system.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un système de données audiovisuelles (52) destiné à un téléphone mobile (54) comprenant un émetteur-récepteur Bluetooth sans fil (56). Le système de données audiovisuelles (52) comprend une source de signaux de données audiovisuelles (12) pouvant être mise en oeuvre pour générer un signal de données audiovisuelles, un émetteur-récepteur infrarouge sans fil (66) et des moyens de traitement de données mis en oeuvre, dans cet exemple, sous la forme d'un programme informatique stocké dans la mémoire (62) du téléphone mobile (54). Le système de données audiovisuelles (52) peut être mis en oeuvre pour recevoir des signaux TV via une antenne (16) ou pour lire des émissions de télévision enregistrées au préalable ou des films stockés dans une carte mémoire. Un appareil de télévision mobile (50) comprend un système de données audiovisuelles (52) et un téléphone mobile (54).
PCT/GB2005/000096 2004-01-15 2005-01-14 Systeme audio/video portatif destine a des dispositifs mobiles WO2005069618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0400815A GB2410160A (en) 2004-01-15 2004-01-15 Base station for transmitting audio visual signal to a mobile device in a home network
GB0400815.7 2004-01-15

Publications (1)

Publication Number Publication Date
WO2005069618A1 true WO2005069618A1 (fr) 2005-07-28

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PCT/GB2005/000096 WO2005069618A1 (fr) 2004-01-15 2005-01-14 Systeme audio/video portatif destine a des dispositifs mobiles

Country Status (2)

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GB (1) GB2410160A (fr)
WO (1) WO2005069618A1 (fr)

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US10303066B2 (en) 2003-07-28 2019-05-28 Asml Netherlands B.V. Lithographic projection apparatus and device manufacturing method

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DE102006010836A1 (de) * 2006-03-07 2007-09-13 Micronas Gmbh Fernsehempfangsvorrichtung für eine PMD und PMD mit einer Fernsehempfangsvorrichtung

Also Published As

Publication number Publication date
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GB0400815D0 (en) 2004-02-18

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