Jun Zhen Yang

US Patent:

6754356, Jun 22, 2004

Filed:

Oct 6, 2000

Appl. No.:

09/684294

Inventors:

Jun Yang - Redwood City CA
Caslav Pavlovic - Palo Alto CA
Arye Nehorai - Highland Park IL

Assignee:

GN ReSound AS - Taastrup

International Classification:

H04R 2500

US Classification:

381318, 381317

Abstract:

A feedback cancellation system for a hearing instrument is described. The feedback cancellation system includes both a constrained adaptive filter, the constrained adaptive filter can be constrained by initiation coefficients, as well as an adaptive gain modification. The adaptive gain modification allows the feedback cancellation to respond to substantially different environments from the test environment used to derive the initiation coefficients for the constrained adaptive filter.

US Patent:

7672445, Mar 2, 2010

Filed:

Feb 21, 2003

Appl. No.:

10/371991

Inventors:

Ming Zhang - Cupertino CA, US
Jun Yang - San Jose CA, US

Assignee:

Fortemedia, Inc. - Cupertino CA

International Classification:

H04M 9/08

US Classification:

37940601, 37940605, 37940608, 37940615, 370286, 370289

Abstract:

Techniques for suppressing large echo due to nonlinearity, instable adaptive filter, and so on. An echo cancellation system includes an echo canceller unit, a nonlinear echo detection unit, and a nonlinear echo suppression unit. The echo canceller unit (e. g. , an adaptive filter) receives a reference signal and a near-end signal, derives an echo estimate signal based on the reference and near-end signals, cancels a portion of echo in the near-end signal based on the echo estimate signal, and provides an intermediate signal having residual echo. The nonlinear echo detection unit detects for large nonlinear echo in the echo estimate signal. The nonlinear echo suppression unit suppresses large nonlinear echo in the first intermediate signal based on a variable gain, which may be adjusted lower if large nonlinear echo is detected and higher otherwise.

US Patent:

7912231, Mar 22, 2011

Filed:

Apr 21, 2006

Appl. No.:

11/408488

Inventors:

Jun Yang - San Jose CA, US
Rick Oliver - Capistrano Beach CA, US

Assignee:

SRS labs, Inc. - Santa Ana CA

International Classification:

H04B 15/00

US Classification:

381 942, 381 941, 381 943, 381 948

Abstract:

Various embodiments of systems and methods for reducing audio noise are disclosed. One or more sound components such as noise and network tone can be detected based on power spectrum obtained from a time-domain signal. Results of such detection can be used to make decisions in determination of an adjustment spectrum that can be applied to the power spectrum. The adjusted spectrum can be transformed back into a time-domain signal that substantially removes undesirable noise(s) and/or accounts for known sound components such as the network tone.

US Patent:

7979791, Jul 12, 2011

Filed:

Jul 30, 2007

Appl. No.:

11/830434

Inventors:

Jun Yang - Cupertino CA, US
Mark E. Stahl - Jersey City NJ, US
Kevin A. Gibbs - San Francisco CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 17/00
G06F 17/30

US Classification:

715234, 715240, 715255, 715760, 709201, 709203

Abstract:

The subject matter of this specification can be embodied in, among other things, a method that includes generating, within a web-accessible document, a parent container document associated with a first Internet domain and one or more child container documents within the parent container document and associated with a second Internet domain. The method also includes receiving, by the parent container document, information requested from a server associated with the first Internet domain, and communicating the information from the first Internet domain to the second Internet domain using the parent container document associated with the first Internet domain to transmit the information to the one or more child container documents associated with the second Internet domain.

US Patent:

8204742, Jun 19, 2012

Filed:

Sep 14, 2009

Appl. No.:

12/559329

Inventors:

Jun Yang - San Jose CA, US
Richard J. Oliver - Capistrano Beach CA, US
James Tracey - Santa Ana CA, US

Assignee:

SRS Labs, Inc. - Santa Ana CA

International Classification:

G10L 19/06
G10L 19/14

US Classification:

704209, 704225, 704226, 704233

Abstract:

An adaptive audio system can be implemented in a communication device. The adaptive audio system can enhance voice in an audio signal received by the communication device to increase intelligibility of the voice. The audio system can adapt the audio enhancement based at least in part on levels of environmental content, such as noise, that are received by the communication device. For higher levels of environmental content, for example, the audio system might apply the audio enhancement more aggressively. Additionally, the adaptive audio system can detect substantially periodic content in the environmental content. The adaptive audio system can further adapt the audio enhancement responsive to the environmental content.

US Patent:

8386247, Feb 26, 2013

Filed:

Jun 18, 2012

Appl. No.:

13/525955

Inventors:

Jun Yang - San Jose CA, US
Richard J. Oliver - Capistrano Beach CA, US
James Tracey - Santa Ana CA, US
Xing He - Tustin CA, US

Assignee:

DTS LLC - Calabasas CA

International Classification:

G10L 11/00
G10L 21/00

US Classification:

704233, 704226, 704205, 704209, 381 947, 379391, 3794061

Abstract:

An adaptive audio system can be implemented in a communication device. The adaptive audio system can enhance voice in an audio signal received by the communication device to increase intelligibility of the voice. The audio system can adapt the audio enhancement based at least in part on levels of environmental content, such as noise, that are received by the communication device. For higher levels of environmental content, for example, the audio system might apply the audio enhancement more aggressively. Additionally, the adaptive audio system can detect substantially periodic content in the environmental content. The adaptive audio system can further adapt the audio enhancement responsive to the environmental content.

US Patent:

20100089450, Apr 15, 2010

Filed:

Oct 15, 2009

Appl. No.:

12/579422

Inventors:

Jun Yang - Cupertino CA, US
Xin Zhu - Fremont CA, US

International Classification:

H01L 31/00

US Classification:

136259

Abstract:

Disclosed herein is a concentrating photovoltaic system utilizing a lens/reflector array to spatially divide the incident sunlight into separate incoherent beams, and a principle optical element to superpose the separate beams that undergo near-field diffraction/transmission, and form a uniform illumination pattern on the photovoltaic (PV) cell with similar shape and size. The array and principle optical element can be flexibly disposed in the system as long as the near-field diffraction condition is satisfied. The PV cell is disposed close to the focus of the principle optical element, and the concentrated illumination pattern on the PV cell is nearly a geometric projection of individual lens/reflector in the array. The size of the pattern is controlled by changing the focal lengths of the array and principle optical element, the distance between them, and the size of individual lens/reflector in the array. The system is insensitive to component misalignment and has the advantage of achieving high concentration ratio and efficient energy conversion with relatively low cost and compact design.

US Patent:

20100274795, Oct 28, 2010

Filed:

Apr 22, 2009

Appl. No.:

12/428367

Inventors:

Prasad V. Rallapalli - Pleasanton CA, US
Jun Yang - Cupertino CA, US

Assignee:

Yahoo! Inc. - Sunnyvale CA

International Classification:

G06F 17/30
G06F 15/82

US Classification:

707769, 709206

Abstract:

Methods and systems are provided that may be used to selectively implement and/or search a composite database comprising a flat file and a relational database based on the query.