EP1210783A2 - Autoradio dote d'une memoire destinee aux signaux audio - Google Patents

Autoradio dote d'une memoire destinee aux signaux audio

Info

Publication number
EP1210783A2
EP1210783A2 EP00956133A EP00956133A EP1210783A2 EP 1210783 A2 EP1210783 A2 EP 1210783A2 EP 00956133 A EP00956133 A EP 00956133A EP 00956133 A EP00956133 A EP 00956133A EP 1210783 A2 EP1210783 A2 EP 1210783A2
Authority
EP
European Patent Office
Prior art keywords
memory
car radio
hard disk
audio
audio data
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP00956133A
Other languages
German (de)
English (en)
Inventor
Matthew Coon
Friedhelm Broeckel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1210783A2 publication Critical patent/EP1210783A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G11B31/003—Arrangements for the associated working of recording or reproducing apparatus with related apparatus with radio receiver
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • 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
    • H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/213—Read-only discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H04B1/082—Constructional details, e.g. cabinet to be used in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/20—Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver

Definitions

  • the invention is based on a car radio with a memory in which audio signals can be stored, according to the preamble of the independent claim.
  • Car radios with a memory in which audio signals can be stored are, for example, in the form of car radios with a memory for recording
  • CD Compact disc
  • CD burner for connection to staff
  • Known computer by means of which the user can play, for example, pieces of music on so-called blank CDs (CD-R's or CD-RW's), for which purpose special software is used on the PC.
  • the CDs described by the user can be played in a conventional manner as well as pre-recorded music CDs in a conventional CD player.
  • the software creates a so-called image file on the hard disk of the personal computer, which contains the pieces of music to be copied.
  • the music data contained in the image file are then transferred to a CD, but can also be played back on the PC.
  • a device for example from the magazine “Plus”, issue 7/99, in the form of the Auto PC from Clarion described there, which combines the functionality of a car radio and that of a computer in one housing.
  • the device has both a slot for
  • the car radio according to the invention with the features of the independent claim has the advantage that a memory with a particularly large recording capacity is available with a hard disk as a memory for audio, in particular music signals.
  • Compression method such as MP3, for storing the audio data in the memory of the car radio; in the case of MP3, the capacity of the hard drive increases by a factor of 10 to 150 hours of music data, which means the capacity of approximately 128 CDs with an assumed average playing time of 70 Minutes per CD. An entire audio CD collection, or at least considerable parts of such a collection, can thus be stored on a conventional hard disk. The change of Storage may become completely unnecessary.
  • Another advantage is the fact that a commercially available hard disk has smaller external dimensions than a conventional CD drive. This results in less effort when integrating the memory into a car radio with its small external dimensions that are customary today and that are specified for accommodating the radio in a standardized installation slot.
  • the hard disk solution also has the advantage of being significantly less than an externally connectable so-called CD changer known for car radios, a CD player for several CDs inserted into a magazine
  • a hard disk can be manufactured more cost-effectively than a CD changer and is less susceptible to wear due to a smaller number of mechanical components.
  • the latter for example in the manner of a removable hard disk known from PCs, can be removed from the car radio or disconnected from it and connected to a data source, for example a PC or a home audio system.
  • the storage of audio data in the memory of the car radio if the latter comprises a reading device for further storage media, which is connected to the memory for transferring audio signals stored on another storage medium into the memory.
  • the hard disk can remain in the car radio at all times, or remain connected to it when placed externally. This is particularly advantageous if the hard disk is either permanently installed in the car radio or is permanently installed at another location in the vehicle, for example behind an interior paneling.
  • Compression of audio data read from a storage medium for storing it in the memory can be switched.
  • the storage media to be evaluated by the reading device need not necessarily contain data in an already compressed form. Rather, the compression can take place in the car radio, so that conventional audio CDs can also be used as data carriers.
  • the reading device does not have to be suitable for reading storage media with compressed audio data; a conventional CD player, for example, is therefore sufficient.
  • a decoder downstream of the memory for converting the MP3-encoded audio data enables their conversion into reproducible audio signals.
  • FIG. 1 shows a block diagram of the part of an inventive car radio that is essential to the invention
  • Figure 2 is a block diagram of a memory for recording audio data with an upstream bait for data compression
  • FIG. 3 shows a block diagram of a memory for recording audio data with a decoder which can be connected in series to convert audio data stored in compressed form into reproducible audio signals.
  • FIG. 1 An advantageous exemplary embodiment of a car radio 1 according to the invention is shown schematically in FIG. 1 in the form of a block diagram.
  • the car radio 1 comprises a radio receiver 20 which is known per se and therefore not explained in more detail and which comprises the means required for receiving a radio signal and for demodulating it.
  • a radio program signal obtained from a received radio transmission frequency by demodulation is available in the form of a stereo multiplex signal, which contains audio signals for the left and right audio channels.
  • the radio program signal that is to say the audio signal to be reproduced, is fed to a first input of a controllable switch 60.
  • this is Broadcast program signal at the output of the controllable switch 60 removable.
  • the output of the controllable switch 60 is connected to a playback device 50, known per se, for audio signals.
  • a playback device 50 known per se, for audio signals.
  • the car radio further comprises an operating unit 40 with operating elements 45, for example in the form of pushbuttons, rotary knobs or cursor control keys, for operating its functions, and a display unit 70 for displaying its operating state, for example the name of a radio program currently received by the radio receiver.
  • an operating unit 40 with operating elements 45, for example in the form of pushbuttons, rotary knobs or cursor control keys, for operating its functions
  • a display unit 70 for displaying its operating state, for example the name of a radio program currently received by the radio receiver.
  • the display unit 70 also serves to display a cursor in front of the
  • the car radio according to the invention comprises one
  • Memory 10 for audio data in the form of a hard disk.
  • the audio data stored on the hard disk can be read out on a corresponding control signal and can be fed to the second input of the controllable switch 60.
  • a corresponding control signal is present at the switch 60, this switches a connection between its second input and its output and thus with the playback unit 50 so that the audio signals read out from the memory 10 are played back.
  • the hard disk can be integrated into the car radio or connected to the car radio as an external device.
  • the elements 10, 20, 40, 50, 60, 70 mentioned are connected to a controller 30 for controlling the functions of the device.
  • the control is used, for example, to convert user inputs on the operating unit 40 into control processes for controlling the named elements of the device, for recording operating states of individual components of the device and for generating operating state information that can be displayed on the display unit 70, i.e. for MMI functions of the device , as well as to control internal processes and functions of the car radio 1.
  • Functions controlled by the controller 30 are, for example, after the user has selected a desired radio program via the control unit 40, the determination of a program and the program
  • the memory 10 of the car radio 1 according to the invention is designed as a hard disk which can be removed from the car radio, for example in the manner of a removable hard disk known from personal computers. For this he is detachable
  • Terminals 12 and 13 for connection to the controller 30 and the second input of the controllable switch 60 are provided, which are advantageously arranged in a plug contact strip such that when the hard disk 10 is inserted into the car radio 1, the connection terminals 12 and 13 automatically with corresponding mating contacts of the car radio 1 Establish electrical connections.
  • the hard disk 10 is in the state removed from the car radio via a further connection terminal 11, hereinafter also known as an input terminal, can be connected to an audio signal system, such as a home stereo system, for transferring audio data to the hard disk.
  • an audio signal system such as a home stereo system
  • the hard disk 10 is inserted into a PC and there with
  • Audio data is described.
  • music CDs inserted in a CD-ROM drive of a PC can be read out and the audio data stored on them can be written to the hard disk.
  • the user of the car radio can, for example, transfer a desired part of his music CD collection onto the hard disk and then listen to it while driving.
  • the transfer of even large amounts of data to the hard disk takes place due to the high reading speeds of today's CD-ROM drives and the high
  • this has a reading device for further storage media, for example in the form of a CD player. Its output is connected to the input of the memory 10, that is to say the hard disk, or can be connected via a connecting terminal 11, so that audio data read from an audio CD inserted into the CD player 80 onto the
  • Hard disk 10 are dubable. This enables the user of the car radio to, for example, transfer part of his CD collection to the hard disk before starting a journey, which can then be listened to while driving. The transfer of the audio data to the hard drive is accelerated by means of a fast CD player. Fast CD players are available in the form of PC CD-ROM drives with up to 40 times the reading speed.
  • the memory 10 is preceded or can be preceded by a compression stage 17. This can be in the signal path between further
  • Terminal 11 of the memory 10 and the hard disk 15 are permanently looped in, or, as in the present case, can be looped into the signal path as required.
  • the compression stage 17 is used to compress audio signal data supplied via the further connection terminal 11 of the memory 10, for example according to the MP3 standard. Audio data is thus stored in compressed form on the hard disk 15 as the actual data memory.
  • the further connection terminal 11 of the memory 10 is connected to a code detector stage 16, which checks the data signal present at the further connection terminal 11 to determine whether it is already in compressed form.
  • a code detector stage 16 which checks the data signal present at the further connection terminal 11 to determine whether it is already in compressed form.
  • Audio data source which, for example, audio data obtained from the Internet is already available in MP3 format.
  • audio data when audio data is transferred from an ordinary audio CD into memory 10, it can be in uncompressed form. If the audio data is in compressed form, the code detector stage 16 feeds the signal present at the further connection terminal 11 directly to the hard disk 15 for storing it. Otherwise, if the audio data signal present at the further connection terminal 11 is in an uncompressed form, the code detector stage 16 feeds it to the compression stage 17 for its compression and subsequent storage on the hard disk 15 in compressed form.
  • the audio data signal stored in compressed form on the hard disk 15 is read by it and fed to a decompression stage 18. This converts the compressed audio data signal into a decompressed one
  • Audio data signal which is removable at the output terminal 13 of the memory and can be fed to the playback device.
  • the audio data signals are both uncompressed, for example originating from a CD player 80, and also compressed, for example, according to the MP3 standard
  • Input terminal 11 can be fed. These are stored unchanged on the hard disk 15.
  • the hard disk 15 is connected on the output side to a further code detector stage 19 which is comparable to the code detector stage 16 and which checks an audio data signal read from the hard disk 15 to determine whether it is in a compressed or uncompressed form. If the audio data signal is in compressed form, it is fed to a decompression stage 18 for its decompression. The decompressed audio data signal can then be removed at the output terminal 13 of the memory 10. Otherwise, if the audio data are present in uncompressed form on the hard disk 15, they are fed directly to the output terminal 13 of the memory 10 when they are read out by the further code detector stage 19.
  • Both the code detector stages 16 and 19, as well as the bait and the decoder 17, 18 can, in particular in the case of a memory 10 which can be removed from or decoupled from the car radio 1, as in FIGS. 2 and 3 shown, executed as part of the memory 10 and thus be removable from the car radio together with the memory 10.
  • the connection terminals 11 and 13 are in the case of the exemplary embodiment in FIG. 2 in the signal path upstream of the code detector 16 or after the decoder 18, in the case of the exemplary embodiment in FIG. 3 in front of the hard disk 15 or after the code detector 19 and the decoder 18 arranged.
  • the elements 16 to 19 mentioned are implemented as part of the actual car radio and thus remain in the car radio even when the memory 10 is decoupled. Then the connecting terminals 11 and 13 are arranged between the code detector 16 and the memory 10, which is then identical to the hard disk 15, or between the hard disk 15 and the decoder 18 or further code detector 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

L'invention concerne un autoradio doté d'une mémoire destinée à l'enregistrement de signaux audio. La mémoire est conçue sous la forme d'un disque dur. Un disque dur utilisé comme mémoire pour signaux audio offre l'avantage d'une capacité de mémoire élevée et simultanément d'un faible encombrement et d'un faible coût de production. Les disques durs usuels actuels ont une capacité de l'ordre de 8 Goctets pour une durée d'enregistrement des signaux audio de 15 heures en qualité CD.
EP00956133A 1999-08-19 2000-08-10 Autoradio dote d'une memoire destinee aux signaux audio Ceased EP1210783A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19939320 1999-08-19
DE1999139320 DE19939320A1 (de) 1999-08-19 1999-08-19 Autoradio mit einem Speicher für Audiosignale
PCT/DE2000/002681 WO2001015356A2 (fr) 1999-08-19 2000-08-10 Autoradio dote d'une memoire destinee aux signaux audio

Publications (1)

Publication Number Publication Date
EP1210783A2 true EP1210783A2 (fr) 2002-06-05

Family

ID=7918895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00956133A Ceased EP1210783A2 (fr) 1999-08-19 2000-08-10 Autoradio dote d'une memoire destinee aux signaux audio

Country Status (4)

Country Link
EP (1) EP1210783A2 (fr)
JP (1) JP2003507836A (fr)
DE (1) DE19939320A1 (fr)
WO (1) WO2001015356A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131216A1 (de) * 2001-06-28 2003-01-30 Bosch Gmbh Robert Betätigungsvorrichtung für ein Fortbewegungsmittel
DE10147278A1 (de) * 2001-09-26 2003-04-24 Kastriot Merlaku Stereo-Anlage oder Radiorecorder mit einer Festplatte
US20070242585A1 (en) * 2004-06-25 2007-10-18 Koninklijke Philips Electronics, N.V. Playback Device for Optical Storage Discs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218804A1 (de) * 1992-06-06 1993-12-09 Vdo Schindling Einrichtung zur Darstellung, Aufbereitung und Speicherung von Informationen in einem Kraftfahrzeug
US5794164A (en) * 1995-11-29 1998-08-11 Microsoft Corporation Vehicle computer system
DE29608032U1 (de) * 1996-05-03 1996-07-18 MAN Technologie AG, 86153 Augsburg Interaktives digitales Informations- und Unterhaltungssystem für Fahrzeuge
US6014381A (en) * 1996-09-13 2000-01-11 Sony Corporation System and method for distributing information throughout an aircraft
DE19746597A1 (de) * 1997-10-22 1999-04-29 Bosch Gmbh Robert Rundfunkempfänger
US7085710B1 (en) * 1998-01-07 2006-08-01 Microsoft Corporation Vehicle computer system audio entertainment system
WO1999039466A1 (fr) * 1998-01-29 1999-08-05 Kwoh Daniel S Dispositifs, systemes et procedes pour radiodiffusion a la demande

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0115356A3 *

Also Published As

Publication number Publication date
WO2001015356A2 (fr) 2001-03-01
WO2001015356A3 (fr) 2001-12-27
DE19939320A1 (de) 2001-03-22
JP2003507836A (ja) 2003-02-25

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