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Avery L Wang

from Palo Alto, CA
Age ~57

Avery Wang Phones & Addresses

  • 2925 Ross Rd, Palo Alto, CA 94303
  • Stanford, CA
  • Redwood City, CA
  • Santa Clara, CA
  • Danville, CA

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Resumes

Resumes

Avery Wang Photo 1

Principal Research Scientist

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Location:
Palo Alto, CA
Industry:
Research
Work:
Shazam Entertainment since 2000
Founder and Chief Scientist

Transparent Perception since Dec 1999
Founder

Integrated Media Measurement, Inc 2007 - 2008
Chief Scientist

Hyperactive Audio Systems, Inc. 1998 - 2000
Founder and Vice President

Chromatic Research 1994 - 1998
MTS
Education:
Stanford University 1988 - 1994
PhD, EEAuditory Scene Analysis, audio source separation, digital signal processing, nonlinear systems. Neuroscience and biological signal processing. Advisor: Julius Smith
Ruhr-Universität Bochum 1990 - 1992
Fulbright Scholarship. Studied under Christoph von der Malsburg at the Institut für Neuroinformatik.
Stanford University 1988 - 1988
MS, MathNumerical analysis and scientific computing
Stanford University 1987 - 1988
MS, EEMedical Imaging and Information Theory. Advisor: Stephen Boyd
Stanford University 1988
BS, Math
Avery Wang Photo 2

Algorithms Instructor

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Location:
Stanford, CA
Work:
Stanford University
Algorithms Instructor
Education:
Stanford University
Master of Science, Masters
Avery Wang Photo 3

Quantitative Research Intern

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Location:
Stanford, CA
Work:

Quantitative Research Intern
Avery Wang Photo 4

Avery Wang

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Avery Wang Photo 5

Entrepreneur, Technologist

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Location:
San Francisco Bay Area
Industry:
Arts and Crafts

Publications

Us Patents

Approximation Circuit And Method

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US Patent:
6581085, Jun 17, 2003
Filed:
May 12, 1999
Appl. No.:
09/310184
Inventors:
Lordson L. Yue - Foster City CA
Parin B. Dalal - Milpitas CA
Avery Wang - Redwood City CA
Assignee:
ATI International SrL - Christchurch
International Classification:
G06F 738
US Classification:
708502
Abstract:
An approximation circuit approximates a function f(x) of an input value “x” by adding at least the first two terms in a Taylor series (i. e. , f(a) and f′(a)(x-a)) where “a” is a number reasonably close to value “x”. The first term is generated by a first look-up table which receives the approximation value “a”. The first look-up table generates a function f(a) of the approximation value “a”. The second look-up table generates a first derivative f′(a) of the function f(a). A first multiplier then multiplies the first derivative f′(a) by a difference (x-a) between input value “x” and approximation value “a” to generate a product f′(a)(x-a). The approximation circuit can approximate the function f(x) by adding the third term of the Taylor series, (½)f″(a)(x-a).

Method And Apparatus For Loading Data From Memory To A Cache

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US Patent:
6766427, Jul 20, 2004
Filed:
Jun 30, 2000
Appl. No.:
09/607814
Inventors:
Avery Wang - Palo Alto CA
Richard W. Webb - Los Gatos CA
Assignee:
ATI International SRL - Barbados
International Classification:
G06F 1300
US Classification:
711154, 711126, 711194, 711158
Abstract:
A method and apparatus for loading data from memory to a cache is provided. The method and apparatus provide substantially improved performance, especially in conjunction with large data arrays for which each element of data is processed completely at once and need not be later accessed. A technique is provided to allow a data element to be loaded directly to a cache location corresponding to the local variable used to process that data element, thereby avoiding copying of the data element to multiple cache locations. In conjunction with the use of non-caching stores of processed results back into main memory, this technique completely avoids cache thrashing within the framework of a conventional microprocessor architecture. This technique is ideally suited for high-performance processing of streaming multimedia data including video processing.

System And Methods For Recognizing Sound And Music Signals In High Noise And Distortion

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US Patent:
6990453, Jan 24, 2006
Filed:
Apr 20, 2001
Appl. No.:
09/839476
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Assignee:
Landmark Digital Services LLC - Nashville TN
International Classification:
G10L 21/00
US Classification:
704270, 709231, 84609, 364487
Abstract:
A method for recognizing an audio sample locates an audio file that most closely matches the audio sample from a database indexing a large set of original recordings. Each indexed audio file is represented in the database index by a set of landmark timepoints and associated fingerprints. Landmarks occur at reproducible locations within the file, while fingerprints represent features of the signal at or near the landmark timepoints. To perform recognition, landmarks and fingerprints are computed for the unknown sample and used to retrieve matching fingerprints from the database. For each file containing matching fingerprints, the landmarks are compared with landmarks of the sample at which the same fingerprints were computed. If a large number of corresponding landmarks are linearly related, i. e. , if equivalent fingerprints of the sample and retrieved file have the same time evolution, then the file is identified with the sample.

Methods For Recognizing Unknown Media Samples Using Characteristics Of Known Media Samples

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US Patent:
7346512, Mar 18, 2008
Filed:
Jan 23, 2006
Appl. No.:
11/337450
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Assignee:
Landmark Digital Services, LLC - Nashville TN
International Classification:
G10L 21/00
US Classification:
704270
Abstract:
A method for recognizing an audio sample locates an audio file that most closely matches the audio sample from a database indexing a large set of original recordings. Each indexed audio file is represented in the database index by a set of landmark timepoints and associated fingerprints. Landmarks occur at reproducible locations within the file, while fingerprints represent features of the signal at or near the landmark timepoints. To perform recognition, landmarks and fingerprints are computed for the unknown sample and used to retrieve matching fingerprints from the database. For each file containing matching fingerprints, the landmarks are compared with landmarks of the sample at which the same fingerprints were computed. If a large number of corresponding landmarks are linearly related, i. e. , if equivalent fingerprints of the sample and retrieved file have the same time evolution, then the file is identified with the sample.

Method And Apparatus For Automatically Creating Database For Use In Automated Media Recognition System

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US Patent:
7359889, Apr 15, 2008
Filed:
Mar 1, 2002
Appl. No.:
10/087204
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Philip Inghelbrecht - London, GB
Christopher Jacques Penrose Barton - San Diego CA, US
Dheeraj Shankar Mukherjee - London, GB
Assignee:
Landmark Digital Services LLC - Nashville TN
International Classification:
G06F 17/30
US Classification:
707 1
Abstract:
A method for automatically creating a database of parameters (e. g. , fingerprints/landmarks) used in a media sample recognition system. The user places a media sample in his media player, e. g. , a CD or DVD player in his personal computer. A software process installed on the user's personal computer, to which is connected the CD/DVD player, extracts the constellation or “raw parameters” from the CD tracks as the CD plays, or under control of the software process. This extraction process may operate in the background. These raw parameters are then transmitted via the Internet (or other computer network) to a server coupled to a recognition database. The raw parameters are stored in the database. At some point in time, the raw parameters are processed into fingerprint/landmarks (e. g. , using linkage) using another software process and then stored either back in the database or in random access memory (RAM) for use during a subsequent recognition process.

Robust And Invariant Audio Pattern Matching

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US Patent:
7627477, Dec 1, 2009
Filed:
Oct 21, 2004
Appl. No.:
10/978313
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Daniel Culbert - Sunnyvale CA, US
Assignee:
Landmark Digital Services, LLC - Nashville TN
International Classification:
G10L 21/00
US Classification:
704273, 704217, 704257, 704224, 704270, 341155, 341110, 341114, 348515, 348464, 348500
Abstract:
The present invention provides an innovative technique for rapidly and accurately determining whether two audio samples match, as well as being immune to various kinds of transformations, such as playback speed variation. The relationship between the two audio samples is characterized by first matching certain fingerprint objects derived from the respective samples. A set () of fingerprint objects (), each occurring at a particular location (), is generated for each audio sample (). Each location () is determined in dependence upon the content of the respective audio sample () and each fingerprint object () characterizes one or more local features () at or near the respective particular location (). A relative value is next determined for each pair of matched fingerprint objects. A histogram of the relative values is then generated.

Method Of Characterizing The Overlap Of Two Media Segments

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US Patent:
7739062, Jun 15, 2010
Filed:
Jun 24, 2005
Appl. No.:
11/629393
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Assignee:
Landmark Digital Services LLC - Nashville TN
International Classification:
G01R 13/00
US Classification:
702 71, 702 75, 7042701, 704231, 704200, 704273
Abstract:
A method of characterizing the overlap of two media segments is provided. In an instance where there is some amount of overlap of a file and a data sample, the file could be an excerpt of an original file and begin and end within the data sample. By matching identified features of the file with identified features of the data sample, a beginning and ending time of a portion of the file that is within the data sample can be determined. Using these times, a length of the file within the data sample can also be determined.

Method And System For Purchasing Pre-Recorded Music

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US Patent:
7853664, Dec 14, 2010
Filed:
Sep 27, 2000
Appl. No.:
09/671571
Inventors:
Avery Li-Chun Wang - Palo Alto CA, US
Christopher Jacques Penrose Barton - San Diego CA, US
Dheeraj Shankar Mukherjee - London, GB
Philip Inghelbrecht - Berkeley CA, US
Assignee:
Landmark Digital Services LLC - Nashville TN
International Classification:
G06F 15/16
H04M 1/64
G10L 15/00
G10L 17/00
G10L 15/04
US Classification:
709217, 379 8801, 704231, 704246, 704251
Abstract:
A method and system is described which allows users to identify (pre-recorded) sounds such as music, radio broadcast, commercials, and other audio signals in almost any environment. The audio signal (or sound) must be a recording represented in a database of recordings. The service can quickly identify the signal from just a few seconds of excerption, while tolerating high noise and distortion. Once the signal is identified to the user, the user may perform transactions interactively in real-time or offline using the identification information.
Avery L Wang from Palo Alto, CA, age ~57 Get Report