WO2005106882A1 - Diffuseur de medias portatif - Google Patents

Diffuseur de medias portatif Download PDF

Info

Publication number
WO2005106882A1
WO2005106882A1 PCT/IB2005/001147 IB2005001147W WO2005106882A1 WO 2005106882 A1 WO2005106882 A1 WO 2005106882A1 IB 2005001147 W IB2005001147 W IB 2005001147W WO 2005106882 A1 WO2005106882 A1 WO 2005106882A1
Authority
WO
WIPO (PCT)
Prior art keywords
processor
data
media player
portable media
memory card
Prior art date
Application number
PCT/IB2005/001147
Other languages
English (en)
Inventor
Hung Keung Tse
Original Assignee
Musical Electronics Limited
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
Priority claimed from US10/835,844 external-priority patent/US20050254365A1/en
Application filed by Musical Electronics Limited filed Critical Musical Electronics Limited
Publication of WO2005106882A1 publication Critical patent/WO2005106882A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/022—Cases
    • G11B33/025—Portable cases
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus

Definitions

  • the present invention relates to a portable media player.
  • the portable media player comprises means for playback of compact disc (CD) audio discs and, in addition, means for playback of compressed and non-compressed audio files stored on internal flash memory as well as on external storage media such as multimedia memory cards (MMCs) and personal computers (PCs) .
  • the portable media player of the present invention also permits audio files to be copied from a CD onto internal and external storage media.
  • Portable media players in the form of CD players are known in the art. Typically, such CD players allow playback of audio data files stored on a CD disc by using a laser to detect data stored on the disc in the form of lands and pits. However, such CD players are not flexible in that they are only able to playback CD-type media.
  • the present invention provides a portable media player comprising: a processor; a drive mechanism coupled to said processor, said drive mechanism being adapted to receive a disc having data stored thereon; memory coupled to said processor; an output device coupled to said processor through which an audio signal may be output; said processor being capable of retrieving data from a disc placed in said drive mechanism and of generating an audio signal based on said data; said processor being capable of outputting said audio signal through said output device; wherein said portable media player further comprises: a memory card interface coupled to said processor, said memory card interface being adapted to receive a memory card, said memory card interface being capable of receiving data from and transmitting data to said processor; a Universal Serial Bus interface coupled to said processor, said Universal Serial Bus interface being adapted to be connected to an external storage device, said Universal Serial Bus being capable of receiving data from and transmitting data to said processor; internal flash memory coupled to said processor, said internal flash memory being capable of receiving data from and transmitting data to said processor.
  • said processor is capable of retrieving data from a memory card placed in said memory card interface and of generating an audio signal based on said data and outputting said audio signal through said output device.
  • said processor is capable of retrieving data from said internal flash memory and or an external storage device connected to said Universal Serial Bus interface and of generating an audio signal based on said data and of outputting said audio signal through said output device.
  • said processor is capable of retrieving data from a disc placed in said drive mechanism and of recording said data to internal flash memory or a memory card placed in said memory card interface.
  • said processor is capable of retrieving data from a disc placed in said drive mechanism and of recording said data to internal flash memory or an external storage device connected to said Universal Serial Bus interface.
  • said processor is capable of retrieving data from internal flash memory or a memory card placed in said memory card interface and of recording said data to an external storage device connected to said Universal Serial Bus interface.
  • said processor is capable of retrieving data from an external storage device connected to said Universal Serial Bus interface and of recording said data to internal flash memory or a memory card placed in said memory card interface.
  • said processor is capable of retrieving data from said internal flash memory and of recording said data to an external storage device connected to said Universal Serial Bus interface.
  • the portable media player may also comprise a microphone interface coupled to said processor, said microphone interface being capable of receiving audio signals from a microphone.
  • Said processor may be capable of retrieving audio signals received by said microphone interface, generating data based on said audio signals and of recording said data to internal flash memory or a memory card placed in said memory card interface.
  • said processor may be capable of retrieving audio signals received by said microphone interface, generating data based on said audio signals and of recording said data to an external storage device connected to said Universal Serial Bus interface.
  • the media player may further comprise an analogue-to- digital converter coupled between said microphone interface and said processor.
  • the media player may further comprise general-purpose input/output (GPIO) ports coupled to said processor.
  • GPIO general-purpose input/output
  • Said processor may comprise a digital signal processor.
  • the digital signal processor is capable of encoding and decoding MP3, MA and CDDA data signals.
  • said disc comprises a CD, CDR or CDR .
  • said memory comprises flash memory and/or SDRAM memory.
  • said output device comprises a digital-to- analogue converter.
  • the media player further comprises an earphone socket connected to said digital-to- analogue converter.
  • said memory card comprises a flash memory card.
  • said flash memory card comprises a Secure Digital (SD) card.
  • SD Secure Digital
  • Said external storage device may comprise any of a personal computer, a flash memory drive or a portable storage drive.
  • the portable media player provides a compact and simple-to-operate device which allows for playback of CDs (or equivalents) as well as compressed audio data stored on external storage devices such as USB- compatible devices and MMCs.
  • the media player also allows recordal of audio signals from an external microphone onto internal flash memory, USB-compatible devices and MMCs.
  • the media player allows copying of data sourced from a CD, internal flash memory, USB-compatible storage device or MMC onto a USB-compatible storage device or MMC without the need for complicated arrangements of apparatus. Copying of CD-sourced data is particularly advantageous since no separate cables are required to record to an MMC or the internal flash memory and only a standard USB cable is required to record to a USB-compatible external storage device.
  • the MMC and USB storage devices are detachable from the portable media player. This allows them to be removed and connected to another compatible playback device if desired by the user.
  • Figure 1 is a plan view of the portable media player according to the present invention
  • Figure 2 is a perspective view from underneath of the portable media player of Figure 1
  • Figure 3 is a system block diagram showing system elements of the portable media player of Figure 1
  • Figure 4 is a functional block diagram showing functional elements of the portable media player of Figure 1.
  • the portable media player 1 of the present invention comprises the functionality of a standard CD player as well as the capability of playback from and recordal to internal flash memory and/or external storage devices using multimedia memory card and/or Universal Serial Bus interfaces.
  • a typical external layout of the portable media player of the present invention is shown in Figures 1 and 2.
  • the system layout of the portable media player 1 is shown in Figure 3.
  • the portable media player 1 of the present invention comprises a unit having CD and audio file playback functionality, navigation/operation keys 4 and a liquid crystal display (LCD) 3.
  • a CD 24 may be inserted and played in the player 1 with the generated audio output being played via earphones connected to an earphones socket 7.
  • USB Universal Serial Bus
  • MMC Multimedia Memory Card
  • the CD functionality of the portable media player 1 is provided by provision of a basic CD player unit having a number of components of known form.
  • the basic CD player unit comprises a housing for receiving in use a CD 24, a servo 23 to allow for high speed rotation of the CD 24, a CD reader unit (not shown) including a laser for detecting the data stored on the CD in the form of lands and pits, and a data multiplexer (data MUX) 12 for conveying the detected data to a controller chip 15 of the player 1.
  • the CD player is capable of playing a number or types of CD including pre-recorded
  • the controller chip 15 of the media player 1 comprises a CD Interface 16, a Digital to Analogue Converter (DAC) Interface 17, an audio Digital Signal Processor (DSP) 18, General Purpose Input/Output (GPIO) ports 19, an External Memory Interface 20 and miscellaneous peripherals 21.
  • the CD Interface 16 provides an interface between the data MUX 12 and the audio DSP 18 for conveying data read from the CD (or equivalent) to the audio DSP in a form suitable for processing.
  • the DAC interface 17 provides an interface between the audio DSP 18 and a separate audio coder-decoder (codec) 9 provided in the media player 1.
  • the audio codec 9 comprises a digital-to-analogue converter (DAC) 11 for converting digital signals output by the DAC Interface 17 into an analogue form suitable to drive the earphones socket 7.
  • the audio codec 9 also comprises an analogue-to-digital converter (ADC) 10 for converting analogue signals received from an external source into a digital form which can be passed to the data MUX 12 and then onto the controller chip 15.
  • ADC analogue-to-digital converter
  • the player 1 may be provided with a microphone socket 8 to which may be connected a microphone for detecting external audio signals.
  • the microphone's output is directed to the ADC 10.
  • the audio DSP 18 performs the functions of signal processing, and the decoding and encoding of audio data.
  • the audio DSP 18 is programmable.
  • the GPIO ports 19 provide an interface between the audio DSP 18 and components which provide inputs to and receive outputs from the controller chip 15 such as the LCD 3, navigation buttons 4 and the CD servo 23.
  • the External Memory Interface 20 supports a program memory 22 and a runtime memory.
  • the program memory 22 permanently or semi-permanently stores program data for the audio DSP 18 and is preferably in the form of flash memory.
  • the runtime memory provides on-demand memory capacity for programs during working of the controller chip 15.
  • the runtime memory is preferably in the form of Synchronous Dynamic Random Access Memory (SDRAM) .
  • SDRAM Synchronous Dynamic Random Access Memory
  • the internal flash memory 25 is coupled to the controller chip 15 via the GPIO ports 19 so as to allow reading and writing of data between the internal flash memory 25 and the audio DSP 18.
  • Miscellaneous peripherals 21 are provided as known in the art of micro-controllers to support functionality of the controller chip 15. These include, for example, timers, Universal Asynchronous Receiver/Transmitter (UART) and Analogue to Digital Converters (ADC) . Operation of the basic CD player unit is controlled by a user though the navigation/operation keys 4 provided on the panel located on the exterior of the housing as shown in Figure 1. Information on the current status of the media player, and the data being played is provided to the user in a visual form using the LCD 3. Audio signals generated by the portable media player 1 are relayed to the user via the pair of earphones connected to the earphone socket 7 of the player 1.
  • UART Universal Asynchronous Receiver/Transmitter
  • ADC Analogue to Digital Converters
  • the basic CD player unit may be provided with anti-shock means as known in the art allowing for uninterrupted playback even when the portable media player is jolted or otherwise moved during use.
  • the functionality of the basic CD player unit is complemented by provision of means for connecting external storage devices to the media player 1.
  • the portable media player 1 is provided on a side surface with a Universal Serial Bus (USB) interface 5.
  • USB Universal Serial Bus
  • USB interface 5 allows the media player 1 to be connected to a USB storage device which is provided with a complementary USB interface.
  • a USB cable of known form is used to make the connection between the two USB interfaces.
  • the USB interface 5 of the media player is compatible with USB 1.0 and USB 2.0 devices.
  • the USB storage device may be a device such as a portable storage drive, e.g. a Thumb Drive or U-disk.
  • the USB storage device may be a personal computer (PC) having a USB interface. It will be clear that other USB-compatible devices may be used within the scope of the present invention.
  • the USB storage device may store the audio data in a format such as Moving Pictures Experts Group Layer 3 (MP3) , MP3
  • the portable media player 1 further comprises a
  • MMC interface 6 is a Secure Digital MMC (SD/MMC) interface.
  • SD/MMC interface 6 allows the connection to the portable media player 1 of an external SD/MMC memory card.
  • the SD/MMC memory card comprises a flash memory which may be used to store audio data in, for example, MP3, WMA or CDDA formats.
  • Both the USB interface 5 and the SD/MMC interface 6 are connected to the GPIO ports 19 of the controller chip 15. In this way data may be passed between the external storage devices connected to the interfaces 5, 6 and the audio DSP
  • the media player 1 allows the playback of audio data from CDs (or equivalent) , internal flash memory, USB storage devices and MMCs. Control of operation of the internal flash memory, USB storage devices and MMCs is provided by the navigation/operation keys 4. Where the playback media is a CD, operation is the same as with a normal portable CD player. Data read from the CD is directed to the audio DSP 18 via the data MUX 12 and CD interface 16 of the controller chip 15. The audio DSP 18 processes the received signals dependant on the data type.
  • the data may be in CDDA, WMA or MP3 formats.
  • the processed output from the audio DSP 18 (in Pulse Code Modulation (PCM) format) is directed to the earphones socket
  • the playback media is the internal flash memory 25, a USB compatible device or an MMC
  • the data read from the internal flash memory 25 or external storage device is directed to the audio DSP 18 via the GPIO ports 19.
  • the audio DSP 18 processes the received signals dependant on the data type. Typically, the data will be in WMA or MP3 formats.
  • the processed output from the audio DSP 18 (in PCM format) is directed to the earphones socket 7 via the DAC 11 of the audio codec 9 to generate the audible playback signals. It will be understood that the playback signals may be used to drive internal or external speakers rather than a pair of earphones via the earphone socket 7.
  • the media player 1 further allows the recording of audio data to the internal flash memory 25, external USB- compatible storage devices and MMCs.
  • the source of the data to be recorded is a microphone
  • analogue signals from the microphone are input, through the microphone socket 8, into the ADC 10 of the audio codec 9.
  • the signals are converted into digital form and passed to the audio DSP 18 via the data MUX 12 and CD interface 16 of the controller chip 15.
  • the audio DSP 18 processes the received signals, typically involving at least compressing and encoding the digital signals into WMA or MP3 formats.
  • the compressed signals are than directed to either the internal flash memory 25 or the MMC interface 5 or the USB interface 6 for recordal onto the internal flash memory and or an external storage device connected to the relevant interface.
  • the source of the data to be recorded is a CD
  • digital signals read from the CD in a known manner are input via the data MUX 12 and CD interface 16 to the audio DSP 18 of the controller chip 15.
  • the audio DSP 18 processes the received signals, typically involving at least compressing and encoding the digital signals into WMA or MP3 formats.
  • the compressed signals are than directed to either the MMC interface 5 or the USB interface 6 for recordal onto an external storage device connected to the relevant interface. It is also possible to record signals stored on one external storage device to another external storage device using the media player 1.
  • a first external storage device containing the source data is connected to one or other of the USB interface 6 or MMC interface 5.
  • a second external storage device is connected to the free interface.
  • Data may then be read from the first, source, device by the audio DSP 18 via the GPIO ports 19.
  • the signals may then be passed back and recorded onto the second device again via the GPIO ports 19.
  • the audio DSP 18 may carry out processing on the signals prior to recording onto the second device .
  • An external storage device is connected to either the Universal Serial Bus interface or a memory card is placed in the memory card interface. Data may then be read and written under the control of the controller chip 15 via the GPIO ports 19 between the internal flash memory 25 and the external storage device or memory card.
  • the portable media player of the present invention may have the capability of simultaneously writing data to two devices where both an external storage device and a memory card are interfaced with the player.
  • data read from the internal flash memory 25 may be written to both an external storage device, such as a personal computer, and a memory card.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

L'invention concerne un diffuseur de médias portatif comprenant: un processeur; un mécanisme d'entraînement couplé au processeur, ce mécanisme d'entraînement étant conçu de manière à recevoir un disque sur lequel sont stockées des données; une mémoire couplée au processeur; un dispositif de sortie couplée au processeur à travers lequel un signal audio peut être émis; le processeur étant capable d'extraire des données du disque placé dans le mécanisme d'entraînement et de générer un signal audio basé sur ces données; le processeur permet également d'émettre ce signal audio à travers le dispositif de sortie; le diffuseur de médias portatif comprend en outre: une interface de carte mémoire couplée au processeur, cette interface de carte mémoire étant conçue de manière à recevoir une carte mémoire, et permettant de recevoir des données provenant du processeur et d'en transmettre à ce dernier. Une interface de bus série universel couplée au processeur, cette interface étant conçue de manière à être connectée à un dispositif de stockage externe, ce bus série universel permettant de recevoir des données provenant du processeur et d'en transmettre à ce dernier; et une mémoire flash interne couplée au processeur, cette mémoire flash interne permettant de recevoir des données provenant du processeur et d'en transmettre à ce dernier.
PCT/IB2005/001147 2004-04-29 2005-04-28 Diffuseur de medias portatif WO2005106882A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/835,844 US20050254365A1 (en) 2004-04-29 2004-04-29 Portable media player
US10/835,844 2004-04-29
US40973504A 2004-04-30 2004-04-30
US0409735.8 2004-04-30

Publications (1)

Publication Number Publication Date
WO2005106882A1 true WO2005106882A1 (fr) 2005-11-10

Family

ID=35241906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/001147 WO2005106882A1 (fr) 2004-04-29 2005-04-28 Diffuseur de medias portatif

Country Status (1)

Country Link
WO (1) WO2005106882A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031742A1 (fr) * 1998-11-19 2000-06-02 Memory Corporation Technology Limited Systeme de lecteur audio
JP2001189050A (ja) * 1999-12-28 2001-07-10 Toshiba Corp コンテンツ記録再生装置およびコンテンツ記録再生方法
CN1403921A (zh) * 2002-09-26 2003-03-19 深圳市朗科科技有限公司 数据交换及存储方法与装置
CN1525482A (zh) * 2003-02-25 2004-09-01 英保达股份有限公司 整合了多种功能的多媒体播放装置
CN2702552Y (zh) * 2004-04-26 2005-05-25 深圳市康特尔电子科技有限公司 便携式多功能媒体播放器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031742A1 (fr) * 1998-11-19 2000-06-02 Memory Corporation Technology Limited Systeme de lecteur audio
JP2001189050A (ja) * 1999-12-28 2001-07-10 Toshiba Corp コンテンツ記録再生装置およびコンテンツ記録再生方法
CN1403921A (zh) * 2002-09-26 2003-03-19 深圳市朗科科技有限公司 数据交换及存储方法与装置
CN1525482A (zh) * 2003-02-25 2004-09-01 英保达股份有限公司 整合了多种功能的多媒体播放装置
CN2702552Y (zh) * 2004-04-26 2005-05-25 深圳市康特尔电子科技有限公司 便携式多功能媒体播放器

Similar Documents

Publication Publication Date Title
JP4470242B2 (ja) 半導体メモリカード
US6588662B1 (en) Portable data backup device
WO2001033569A1 (fr) Dispositif portatif de lecture audio et lecteur de disque amovible
GB2370682A (en) DVD player with card reader
KR20210000476U (ko) 광학 식별식 레코드 시스템
EP1288949A3 (fr) Appareil d'enregistrement et de reproduction audio numérique
GB2413686A (en) Portable audio media player
US20050254365A1 (en) Portable media player
WO2005106882A1 (fr) Diffuseur de medias portatif
KR100403376B1 (en) Device for processing media using external storage
US20040088062A1 (en) Audio device and optical disk device
JP4211698B2 (ja) コンテンツデータ再生装置
JP2004062850A (ja) ポータブル型データバックアップ装置
KR200403842Y1 (ko) 전자음반
KR200345129Y1 (ko) 외부 메모리 인터페이스 및 보안키 기능을 가진 다중디지털 오디오재생 시스템
CN100561585C (zh) 光盘录放装置
JP4008840B2 (ja) 再生装置
JP2003007041A (ja) オーディオ機器および脱着パネル
EP1647985A1 (fr) Appareil pour support d'enregistrement optique
KR20080003250U (ko) 디지털 오디오비디오신호가 기록 되어 있는 메모리카드
KR200329876Y1 (ko) 착탈 방식의 메모리 카트리지 장치
JP6145320B2 (ja) 音声再生装置、音声再生システム、音声再生装置の制御方法、プログラム
TWI277889B (en) Video/audio multimedia processing method and its apparatus for computer system
TWI298486B (en) Portable audio player
KR101164248B1 (ko) 범용직렬버스 연동 카 오디오 시스템 및 그 제어방법

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase