Classifications

• • 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
• • 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
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
• • 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
• • 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
  • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
• • 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
  • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
  • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
  • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier

Definitions

• a predetermined time period may be pre-selected and, if a period of silence is detected during the recording which is longer than the pre-selected period, the recording of a current track is terminated.
• these methods are error prone, as they may lead to the accidental merging of songs, e.g. if the pause between two songs is shorter than the predetermined time period, or the accidental separation of single songs, e.g. if there is a short period of relative silence within a song or a piece of classical music.
• the fingerprints of a large number of information signals along with their associated respective data are stored, e.g. in a database.
• the associated data may comprise metadata where the term "metadata" refers to information about the content of the information signal such as the title, artist, genre and so on.
• the associated data comprises at least a first property value of a first property for use in the processing of the information signal.
• the associated data is retrieved by computing a fingerprint of the information signal and by performing a lookup or query in the database using the computed fingerprint as a lookup key or query parameter. The lookup then returns the data associated with the fingerprint.
• the finge ⁇ rint data and the associated property data may be stored locally in the same device performing the processing of the signal, e.g. on a storage-medium of the processing device, on a storage medium connected to the device, e.g. on a data carrier inserted in a corresponding reader, e.g. a CD, or the like. It is an advantage of locally storing the finge ⁇ rint data, that no connection to a remote database is necessary. Alternatively or additionally, the finge ⁇ rint data may be stored at a remote location, e.g. in a remote finge ⁇ rint database of a data processing system, e.g. a server computer.
• the step of determining a finge ⁇ rint of the information signal comprises the step of determining a finge ⁇ rint of at least one segment of the information signal, and wherein the plurality of stored finge ⁇ rints comprise finge ⁇ rints of at least predetermined segments of predetermined information signals. Consequently, a finge ⁇ rint is determined for one or more parts of an information signal only, thereby reducing the required computational resources for calculating the finge ⁇ rint and for matching the finge ⁇ rint with stored finge ⁇ rints. For example, in the case of audio signals, a finge ⁇ rint does not need to be calculated for an entire audio track of several minutes. In some embodiments it may be sufficient to calculate finge ⁇ rints of short segments of the audio tracks, e.g. a short segment at the beginning, near the middle, and near the end of the track.
• the term storage means comprises magnetic tape, optical disc, digital video disk (DVD), compact disc (CD or CD-ROM), mini-disc, hard disk, floppy disk, ferro- electric memory, electrically erasable programmable read only memory (EEPROM), flash memory, EPROM, read only memory (ROM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), ferromagnetic memory, optical storage, charge coupled devices, smart cards, PCMCIA card, etc.
• the term storage means further comprises input devices for reading a computer-readable medium. Examples of such receiving means include a floppy-disk drive, a CD-Rom drive, a DVD drive, or any other suitable disc drive, a memory card adapter, a smart card adapter, etc.
• the recorder 103 further comprises communication circuitry 108 which receives the computed finge ⁇ rint from circuitry 105 and transmits the calculated finge ⁇ rint data to a fmge ⁇ rint server 109 via a communications link 107.
• the communications circuitry 108 receives the computed finge ⁇ rint from circuitry 105 and transmits the calculated finge ⁇ rint data to a fmge ⁇ rint server 109 via a communications link 107.
• the finge ⁇ rint server 109 receives a request from the recorder 103 including a calculated f ⁇ nge ⁇ rint. In response to this request, the finge ⁇ rint server identifies the fmge ⁇ rint in the database 110 and returns the requested data associated with the stored finge ⁇ rint, e.g. as described in connection with figs. 3-4.
• the communications link 107 may be any suitable wired or wireless data link, for example a packet-based communications network, such as the Internet or another TCP/IP network, a short-range communications link, such as a radio-based link, or the like.
• the communications circuit 108 comprises circuitry and/or devices suitable for enabling the communication of data via the communications link 107.
• circuitry include a network interface, a network card, a radio receiver, a receiver for other suitable electromagnetic signals, or the like.
• Further examples of such circuitries include a cable modem, a telephone modem, an Integrated Services Digital Network (ISDN) adapter, a Digital Subscriber Line (DSL) adapter, a satellite transceiver, an Ethernet adapter, or the like.
• ISDN Integrated Services Digital Network
• DSL Digital Subscriber Line
• the input module 401 receives a finge ⁇ rint from a client device and supplies the finge ⁇ rint to the DBMS backend module 403.
• the DBMS backend module 303 performs a query on the database 110 to retrieve a set of metadata associated with the computed finge ⁇ rint from the database 110.
• the database 110 comprises finge ⁇ rints FP1, FP2, FP3, FP4 and FP5 and respective associated sets of metadata MDS1, MDS2, MDS3, MDS4 and MDS5.
• the video recorder 703 comprises an encoding module 704 for encoding a video signal.
• Video encoding is usually much more complex than video decoding: video encoding entails the search over a large space of free parameters to obtain the best trade-off between rate (number of bytes to be used) and the video quality. Video decoding engines do not suffer from this complexity, as their only task is to inte ⁇ ret the chosen parameters. In general, high quality video encoding requires many more computing resources than are available within a relatively inexpensive consumer device.

Landscapes

• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Collating Specific Patterns (AREA)
• Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
• Image Input (AREA)
• Television Signal Processing For Recording (AREA)
• Management Or Editing Of Information On Record Carriers (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (2)

Family

ID=29433144

Family Applications (1)

Country Status (7)

Cited By (4)

Families Citing this family (8)

Family Cites Families (16)

• 2003
  • 2003-04-22 EP EP03715250A patent/EP1506550A2/en not_active Ceased
  • 2003-04-22 US US10/514,285 patent/US20050229204A1/en not_active Abandoned
  • 2003-04-22 JP JP2004506031A patent/JP2005526349A/ja active Pending
  • 2003-04-22 WO PCT/IB2003/001679 patent/WO2003098627A2/en not_active Ceased
  • 2003-04-22 AU AU2003219438A patent/AU2003219438A1/en not_active Abandoned
  • 2003-04-22 KR KR10-2004-7018395A patent/KR20050003457A/ko not_active Withdrawn
  • 2003-04-22 CN CNA038109085A patent/CN1672211A/zh active Pending

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