Gracenote Patents

Gracenote is constantly striving to develop the highest quality technology and services that enrich the music experience, wherever people listen to music. As a result of our pioneering work the United States Patent and Trademark Office has awarded Gracenote or its predecessor-in-interest the fourteen patents listed below. Copies of Gracenote's patents can be found at http://www.USPTO.gov or accessed from the full patent text links below each patent's abstracts.

AUTOMATIC IDENTIFICATION OF SOUND RECORDINGS
U.S. Patent No. 7,328,153, issued February 5, 2008, relates to the fundamental concepts embodied in Gracenote's MusicID File audio fingerprint extraction and identification product. The patent describes a method for identifying digital recordings from unidentified recordings by extracting one or more fingerprints from an unidentified recording and searching a reference database for candidate matches. The patent covers the methods for computing fingerprints from time-frequency ranges and weighted frequency spectra of selected portions of the recording. The patent also covers creating a reference fingerprint database that is searched using a Search by Range Reduction (SRR) method for efficiency. The searching includes the computation of distance measures to determine the suitability of a match.
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METHOD AND SYSTEM FOR ACCESSING WEB PAGES BASED ON PLAYBACK OF RECORDINGS
U.S. Patent No. 7,308,485, issued December 11, 2007, relates to retrieving remote data via a computer network related to a recording being played in a local device.
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APPARATUS AND METHOD FOR DESIGNATING VARIOUS SEGMENT CLASSES
U.S. Patent No. 7,304,231, issued Dec. 4, 2007, relates to a method for automated grouping and labeling of temporal segments within a piece of music, such as e.g. the chorus and the verse sections, which are determined using self-similarity metrics and heuristics about the temporal structure.
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APPARATUS AND METHOD FOR CHANGING A SEGMENTATION OF AN AUDIO PIECE
U.S. Patent No. 7,282,632, issued Oct. 16, 2007, relates to a method to post-process automatically obtained temporal segment information, which is often too granular and does not reflect human perception of musical section (such as the chorus or verse of a song) appropriately.
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FINDING DATABASE MATCH FOR FILE BASED ON FILE CHARACTERISTICS
U.S. Patent No. 7,228,280, issued June 5, 2007, relates to finding a match for a file in a database of files, based on sample values for at least one portion of the file and an indication of the amount of data in the file.
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METHOD AND SYSTEM FOR FINDING APPROXIMATE MATCHES IN A DATABASE
U.S. Patent No. 7,167,857, issued January 23, 2007, relates to a comparison of CD table of contents information (TOC) using Fuzzy Matching Techniques for use in CD recognition systems.
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APPARATUS FOR ANALYZING AN AUDIO SIGNAL WITH REGARD TO RHYTHM INFORMATION OF THE AUDIO SIGNAL BY USING AN AUTOCORRELATION FUNCTION
U.S. Patent No. 7,012,183, issued Mar. 14, 2006, relates to the extraction of rhythmic and tempo information from music signals by applying autocorrelation functions to multiple frequency bands of said signals, and subsequently weighting and merging the results depending on the obtained characteristics.
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AUTOMATIC IDENTIFICATION OF DVD TITLE USING INTERNET TECHNOLOGIES AND FUZZY MATCHING TECHNIQUES
U.S. Patent No. 6,983,289, issued January 3, 2006, relates to Automatic disk identification method in DVD changer, involves using unique information about unidentified DVD to search possibly matching records about DVD from remote database.
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SYSTEM FOR COLLECTING USE DATA RELATED TO PLAYBACK OF RECORDINGS
U.S. Patent No. 6,330,593, issued December 11, 2001, relates to entertainment content complementary to a musical recording that is delivered to a user's computer by means of a computer network link. The user employs a browser to access the computer network. A plug-in for the browser is able to control an audio CD or other device for playing the musical recording. A script stored on the remote computer accessed over the network is downloaded. The script synchronizes the delivery of the complementary entertainment content with the play of the musical recording.
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PLAYBACK DEVICE HAVING TEXT DISPLAY AND COMMUNICATION WITH REMOTE DATABASE OF TITLES
U.S. Patent No. 6,304,523 issued October 16, 2001, relates to a Multi-CD Changer or digital Musical Jukebox that connects to a network in order to retrieve and then display textual and other information about the audio files stored or played on the device.
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NETWORK DELIVERY OF INTERACTIVE ENTERTAINMENT SYNCHRONIZED TO PLAYBACK OF AUDIO RECORDINGS
U.S. Patent No. 6,240,459, issued May 29, 2001 relates to features including a playback system that compares the playback position of a recording with timing information received via a network from a database system to determine whether to request a new display segment from the database system.
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NETWORK DELIVERY OF INTERACTIVE ENTERTAINMENT SYNCHRONIZED TO PLAYBACK OF AUDIO RECORDINGS
U.S. Patent No. 6,230,207, issued May 8, 2001, relates to features including interactively synchronizing the display of information from a remote device with the playback of a recording at a local device.
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METHOD AND SYSTEM FOR ACCESSING REMOTE DATA BASED ON PLAYBACK OF RECORDINGS
U.S. Patent No. 6,230,192, issued May 8, 2001, relates to using a recording as a password to access a remote device via a computer network. An identifier is determined for the recording and the link to the remote device is based on the identifier.
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SYSTEM FOR SYNCHRONIZING PLAYBACK OF RECORDINGS AND DISPLAY BY NETWORKED COMPUTER SYSTEMS
U.S. Patent No. 6,161,132, issued December 12, 2000 relates to a method of using a first device to control playback of a recording at one or more second devices connected to the first device via a network and transmitting output data related to the recording between the first and second devices.
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NETWORK DELIVERY OF INTERACTIVE ENTERTAINMENT COMPLEMENTING AUDIO RECORDINGS
U.S. Patent No. 6,154,773, issued November 28, 2000, relates to features including synchronizing visual content with playback of a musical recording at a local computer that receives the visual content from a remote computer.
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METHOD AND SYSTEM FOR FINDING APPROXIMATE MATCHES IN DATABASE
U.S. Patent No. 6,061,680, issued May 9, 2000, relates to a method used to find title and track information in a database by calculating approximate length information based on the number and length of tracks on a recording.
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NETWORK DELIVERY OF INTERACTIVE ENTERTAINMENT SYNCHRONIZED TO PLAYBACK OF AUDIO RECORDINGS
U.S. Patent No. 5,987,525, issued November 16, 1999, relates to features including synchronizing visual content with playback of a musical recording at a local computer that receives the visual content from a remote computer.
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