Gracenote is constantly striving to develop the highest quality technology and services that enrich the multimedia experience. Our domestic patents cover technologies developed as a result of pioneering efforts in the audio and video technology space. The innovations in these technologies have been recognized by patent offices around the world and have resulted in the issuance of the patents below. Copies of Gracenote's U.S. patents can be found at http://www.USPTO.gov or accessed from the full patent text links below each patent's summary.
DEVICE AND METHOD FOR ANALYZING AN INFORMATION SIGNAL
U.S. Patent No. 7,565,213, issued July 21, 2009, relates to the automatic
detection of sound events within a complex audio signal. This system uses
spectral amplitude profiles derived from the audio signal to detect sound
samples such as drum instruments in polyphonic music.
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GENERATING AND MATCHING HASHES OF MULTIMEDIA CONTENT
U.S. Patent No. 7,549,052, issued June 16, 2009, relates to a method of
comparing hashes derived from media signals in a non-exact fashion.
This is utilized in Gracenote’s highly robust Mobile MusicID technology in
order to reliably detect even harshly distorted or otherwise altered media
content.
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EFFICIENT STORAGE OF
FINGERPRINTS
U.S. Patent No. 7,477,739, issued January 13, 2009, relates to a method for
efficiently storing media fingerprints in a database to enable fast and
scalable look-ups against large data sets of reference fingerprints using an
index table for fuzzy hash look-ups and, subsequently, performing a more
thorough comparison on the results of the indexed search.
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APPARATUS AND METHOD
FOR GROUPING TEMPORAL SEGMENTS OF A PIECE OF MUSIC
U.S. Patent No. 7,345,233, issued Mar. 18, 2008, relates to grouping temporal
segments within music that have been automatically obtained, according to their
similarity. Thus, repeating parts within music can be determined by the
machine, which eventually leads to better comprehension of the structure of a
musical piece, as well can be used to characterize musical items.
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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 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.
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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.
Full patent text
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.
Full patent text
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
table of contents information (TOC) on physical media and using Fuzzy Matching
Techniques to search for a match in a database of records.
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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.
Full patent text
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 an automatic disk
identification method involving using unique information about an unidentified
DVD to search possibly matching records about the DVD from a 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 collecting use
data associated with a recording and transferring the information over a
network from one device to another.
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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 device that
connects to a network in order to retrieve and then display textual and other
information about the 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 a method for
associating local data with remote data over a network. A uniform resource locator is generated when
a recording is played on a local device identifying the location for obtaining
remote data. The remote data is then
outputted on the local computer. .
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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 a method of
synchronizing distributed content from a distributed medium with complementary
content from a remote device delivered over a network.
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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 of searching
for a match in a database of records 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 where the visual content is received from a remote computer.
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