DE102005062429A1 - Device e.g. motion picture experts group layer three player, for use with personal computer, has audio unit e.g. headphone, including digital-to-analog converter that converts decoded data into hearable audio data - Google Patents

Device e.g. motion picture experts group layer three player, for use with personal computer, has audio unit e.g. headphone, including digital-to-analog converter that converts decoded data into hearable audio data Download PDF

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Publication number
DE102005062429A1
DE102005062429A1 DE200510062429 DE102005062429A DE102005062429A1 DE 102005062429 A1 DE102005062429 A1 DE 102005062429A1 DE 200510062429 DE200510062429 DE 200510062429 DE 102005062429 A DE102005062429 A DE 102005062429A DE 102005062429 A1 DE102005062429 A1 DE 102005062429A1
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Germany
Prior art keywords
data
unit
audio
key
encrypted
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Application number
DE200510062429
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German (de)
Inventor
Mathias Brosz
Joerg Grimm
Jan Reichmann
Thomas Schlid
Martin Hoerning
Ulrich Gockel
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Individual
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Individual
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Priority to DE200510062429 priority Critical patent/DE102005062429A1/en
Publication of DE102005062429A1 publication Critical patent/DE102005062429A1/en
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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
    • G11B20/00195—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00246—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0071—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0071—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • G11B20/00724—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action wherein a prepaid credit balance is registered on the recording medium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
    • G11B20/00869—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server wherein the remote server can deliver the content to a receiving device
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
    • G11B2020/00057—MPEG-1 or MPEG-2 audio layer III [MP3]

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

The device has a memory unit for storing coded and decoded data, and a code memory. A data transmission unit is provided for storing the data on the memory unit and includes a universal serial bus (USB)-connector. An audio unit e.g. headphone, includes a digital-to-analog converter that converts the decoded data into hearable audio data. An independent claim is also included for a method of processing data.

Description

Stand der TechnikState of technology

Die Erfindung geht aus einer Vorrichtung und einem Verfahren zum Verarbeiten von Daten nach dem Oberbegriff des Hauptanspruches und des Nebenanspruches 6.The The invention relates to a device and a method for processing of data according to the preamble of the main claim and the secondary claim 6th

In den letzten Jahren wurde die Verbreitung von Audiodaten über das Internet immer populärer. Dies liegt hauptsächlich auch daran, dass die dem Privat-Anwender zu Verfügung stehenden Bandbreite gewachsen ist, z. B. durch die Benützung einer Flatrate bei DSL-Anschlüssen. Somit können auch größere Datenmengen, wie z. B. Audiodaten, günstig vom Netz geladen werden und unter Freunden vervielfältigt werden.In In recent years, the distribution of audio data over the Internet increasingly popular. This lies mainly also because the bandwidth available to the private user has grown is, for. B. by the use a flatrate with DSL connections. Thus, you can even larger amounts of data, such as As audio data, favorable from Net and be duplicated among friends.

Die Erfindung und ihre VorteileThe Invention and its advantages

Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs und des Anspruchs 6, weisen demgegenüber den Vorteil auf, dass die Daten, insbesondere Audiodaten von Musikstücken, verschlüsselt auf dem Datenspeicher der Vorrichtung, insbesondere eines MP3-Player, gespeichert werden. Diese Daten können nur mit dem Schlüssel, der auf einem Schlüsselspeicher der Vorrichtung gespeichert ist, dekodiert werden und mit der Audioeinheit der Vorrichtung, insbesondere über den Kopfhörer, abgespielt werden.The inventive method and the device according to the invention with the characterizing features of the main claim and the claim 6, in contrast, show the advantage that the data, in particular audio data of pieces of music, encrypted on the data memory of the device, in particular an MP3 player, get saved. This data can only be used with the key, the on a key storage the device is stored, decoded and with the audio unit the device, in particular over the Headphone, be played.

Nach einer weiteren vorteilhaften Ausgestaltung der Erfindung, ist die Vorrichtung zu dem Schlüssel mit einer eindeutigen Identifikation (ID) versehen, die beim Herunterladen vom Internet an den Server übertragen wird, damit der Server die Daten für den Schlüssel der jeweiligen Vorrichtung (MP3-Player) kodiert, und somit nur noch von dem Schlüssel der jeweiligen Vorrichtung dekodiert werden können und/oder um den jeweiligen User zu identifizieren. Dies dient dazu, um zum einen eine Berechtigung zu überprüfen, zum anderen aber die Möglichkeit zu haben, in einem Prepaid-Verfahren oder per Rechnung den User für die heruntergeladenen Daten belasten zu können.To a further advantageous embodiment of the invention, is the Device to the key provided with a unique identification (ID) when downloading transferred from the Internet to the server will allow the server to get the data for the key of the particular device (MP3 player) coded, and thus only from the key of the respective device can be decoded and / or to identify the respective user. This serves on the one hand to check an authorization, on the other hand the possibility to have in a prepaid procedure or by invoice the user for the load downloaded data.

Nach einer zusätzlichen Ausgestaltung der Erfindung können auf die Vorrichtung auch nicht verschlüsselte Daten gespeichert werden und/oder mit der Audioeinheit abgehört werden.To an additional one Embodiment of the invention can on the device even unencrypted data are stored and / or to be intercepted with the audio unit.

Beschreibungdescription

Eine Vorrichtung, insbesondere ein MP3-Player, weist eine Speichereinheit, auf der verschlüsselte und/oder unverschlüsselte Daten gespeichert werden können, sowie eine Schlüsseleinheit, deren Inhalt nicht veränderbar ist, eine Datenübertragungseinheit, um die Daten auf der Speichereinheit zu speichern, und eine Audioeinheit, die die unverschlüsselten Daten mit einem DA-Wandler in hörbare Audiodaten wandelt und verschlüsselte Daten mit Hilfe des Schlüssels, der in der Schlüsseleinheit gespeichert ist, zuerst mit der Datenentschlüsselungseinheit entschlüsselt und danach mit dem DA-Wandler in hörbare Audiodaten wandelt, auf.A Device, in particular an MP3 player, has a memory unit, on the encrypted and / or unencrypted Data can be stored and a key unit whose Content can not be changed is, a data transmission unit, to store the data on the storage unit, and an audio unit, the unencrypted Data with a DA converter in audible audio data converts and encodes Data using the key, the one in the key unit is first decrypted with the data decryption unit and then audible with the DA converter Audio data converts to.

Die Vorrichtung wird mit einem Rechner, insbesondere einem PC, verbunden. Danach verbindet ein auf der Vorrichtung oder auf dem Rechner befindliches Programm die Vorrichtung mit einem Server. Im nächsten Schritt übermittelt die Vorrichtung die Identifikation, dies ist eine Seriennummer eines Speichers oder die Seriennummer der Vorrichtung selbst oder der Schlüssel oder eine ID-Nummer, die in einem extra Identifikationsnummerspeicher gespeichert ist. Daraufhin werden die gewünschten Daten von dem Server für genau die Vorrichtung verschlüsselt und auf den Datenspeicher der Vorrichtung übertragen und gespeichert. Der User bzw. Eigentümer wird mit den Kosten für das Herunterladen der Daten belastet. Die Vorrichtung wird von dem Rechner getrennt. Die verschlüsselten Daten können nach Entschlüsselung nur über die Audioeinheit analog über den Kopfhörerausgang gehört werden. Da der Schlüssel nicht auslesbar ist, können die verschlüsselten Daten auf einem anderen Gerät nicht entschlüsselt werden und sind somit unbrauchbar.The Device is connected to a computer, in particular a PC. Thereafter, a device located on the device or on the computer connects Program the device with a server. Submitted in the next step the device's identification, this is a serial number one Memory or the serial number of the device itself or the key or an ID number stored in an extra identification number memory is stored. Thereupon, the desired data from the server for exactly the device is encrypted and transferred to the data memory of the device and stored. The user or owner becomes with the cost of downloading the data charged. The device is of the Computer separately. The encrypted Data can after decryption only over the audio unit analog over the Headphone output belongs become. Because the key can not be read the encrypted Data on another device not decrypted are and are therefore useless.

Alle in der Beschreibung und den nachfolgenden Ansprüchen dargestellten Merkmale sind sowohl einzeln als auch in beliebiger Kombination miteinander erfindungswesentlich.All features set forth in the specification and the claims which follow are both individually and in any combination with each other essential to the invention.

Claims (13)

Vorrichtung zum Verarbeiten von Daten, die eine Speichereinheit, einen Schlüsselspeicher, eine Datenübertragungseinheit und eine Audioeinheit umfasst.Device for processing data containing a Storage unit, a keystore, a data transmission unit and an audio unit. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Audioeinheit einen Datenentschlüsselungseinheit (DA-Wandler) umfasst.Device according to claim 1, characterized in that the audio unit has a data decoding unit (DA converter) includes. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Übertragungseinheit einen USB-Stecker umfasst.Device according to claim 1, characterized in that that the transmission unit includes a USB connector. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung einen ID-Speichereinheit umfasst.Device according to claim 1, characterized in that that the device is an ID storage unit includes. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung einen Datenentschlüsselungseinheit umfasst.Device according to claim 1, characterized in that the device comprises a data decryption unit. Verfahren zum Verarbeiten von Daten mit folgenden Schritten: – die verschlüsselten Daten auf ein Datenspeicher einer Vorrichtung gespeichert werden, – die verschlüsselten Daten mit einem Schlüssel, der in einem Schlüsselspeicher der Vorrichtung gespeichert ist, dekodiert werden können, – die kodierten Daten werden mit dem Schlüssel dekodiert und über die Audioeinheit abgespielt.Method for processing data with the following steps: - the encrypted Data is stored on a data store of a device, - the encrypted Data with a key, the one in a key store the device is stored, can be decoded, - the coded ones Data will be with the key decoded and over played the audio unit. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Vorrichtung mit dem Datenspeicher an einen PC mit einer Datenübertragungseinheit angeschlossen wird.Method according to Claim 6, characterized that the device with the data storage to a PC with a Data transmission unit connected becomes. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass eine auf der Vorrichtung gespeicherte Identifikations-Nummer an den Server übertragen wird, – dass der Server die Daten für den Schlüssel der Vorrichtung kodiert, – dass die kodierten Daten auf den Datenspeicher der Vorrichtung übertragen werden.Method according to claim 7, characterized, that an identification number stored on the device transferred to the server becomes, - that the server is the data for the key encoded the device - that transmit the encoded data to the data memory of the device become. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die kodierten Daten mit dem Schlüssel dekodiert werden und nur über die Audioeinheit abgespielt werden und nicht digital speicherbar sind.Method according to Claim 6, characterized that the coded data is decoded with the key and only via the Audio unit are played and not digitally stored. Verfahren nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass die Daten symmetrisch verschlüsselt werden.Method according to one of claims 6 to 9, characterized that the data is encrypted symmetrically. Verfahren nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass die Daten asymmetrisch verschlüsselt werden.Method according to one of claims 6 to 9, characterized that the data is encrypted asymmetrically. Verfahren nach einem der Ansprüche 6 bis 11 dadurch gekennzeichnet, dass die verschlüsselten Daten über das Internet auf das Stick übertragen werden.Method according to one of Claims 6 to 11, characterized that the encrypted data about the Internet to be transferred to the stick. Verfahren nach einem der Ansprüche 6 bis 12 dadurch gekennzeichnet, dass die verschlüsselten Daten mit dem HTTP-Protokoll übertragen werden.Method according to one of claims 6 to 12, characterized that the encrypted data transmitted using the HTTP protocol become.
DE200510062429 2005-12-23 2005-12-23 Device e.g. motion picture experts group layer three player, for use with personal computer, has audio unit e.g. headphone, including digital-to-analog converter that converts decoded data into hearable audio data Withdrawn DE102005062429A1 (en)

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DE200510062429 DE102005062429A1 (en) 2005-12-23 2005-12-23 Device e.g. motion picture experts group layer three player, for use with personal computer, has audio unit e.g. headphone, including digital-to-analog converter that converts decoded data into hearable audio data

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DE200510062429 DE102005062429A1 (en) 2005-12-23 2005-12-23 Device e.g. motion picture experts group layer three player, for use with personal computer, has audio unit e.g. headphone, including digital-to-analog converter that converts decoded data into hearable audio data

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030204736A1 (en) * 2002-04-25 2003-10-30 International Business Machines Corporation Apparatus for authenticated recording and method therefor
EP1177557B1 (en) * 1999-04-30 2004-06-30 Thomson Licensing S.A. Multi-format personal digital audio player
US6820203B1 (en) * 1999-04-07 2004-11-16 Sony Corporation Security unit for use in memory card

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6820203B1 (en) * 1999-04-07 2004-11-16 Sony Corporation Security unit for use in memory card
EP1177557B1 (en) * 1999-04-30 2004-06-30 Thomson Licensing S.A. Multi-format personal digital audio player
US20030204736A1 (en) * 2002-04-25 2003-10-30 International Business Machines Corporation Apparatus for authenticated recording and method therefor

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