Yan M Cheng

US Patent:

6480821, Nov 12, 2002

Filed:

Jan 31, 2001

Appl. No.:

09/774840

Inventors:

Dusan Macho - Schaumburg IL
Yan Ming Cheng - Schaumburg IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G10L 2102

US Classification:

704207, 704233

Abstract:

A system for enhancing the signal-to-noise ratio of a speech signal is avoided. A plurality of local energy maximums associated with a speech signal are determined. Presumably, each of these local energy maximums defines a speech pitch period. Typically, human pitch periods are approximately 100-400 Hz depending on the sex and age of the speaker. Because human speech typically includes more energy near the beginning of a pitch period than at the end of the pitch period, and background noise tends to remain relatively constant throughout the pitch period, the speech signal may be enhanced by increasing the energy associated with the beginning of the pitch period and/or by decreasing the energy associated with the end of the pitch period. Preferably, the amount of energy increase in the earlier portion of the pitch period is approximately equal to the amount of energy reduction in the later portion of the pitch period. In this manner, the total energy remains the constant.

US Patent:

6678656, Jan 13, 2004

Filed:

Jan 30, 2002

Appl. No.:

10/061048

Inventors:

Dusan Macho - Schaumburg IL
Yan Ming Cheng - Schaumburg IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G10L 1520

US Classification:

704233, 704243

Abstract:

A voice sample characterization front-end suitable for use in a distributed speech recognition context. A digitized voice sample is split between a low frequency path and a high frequency path. Both paths are used to determine spectral content suitable for use when determining speech recognition parameters (such as cepstral coefficients) that characterize the speech sample for recognition purposes. The low frequency path has a thorough noise reduction capability. In one embodiment, the results of this noise reduction are used by the high frequency path to aid in de-noising without requiring the same level of resource capacity as used by the low frequency path.

US Patent:

20030018471, Jan 23, 2003

Filed:

Oct 26, 1999

Appl. No.:

09/427497

Inventors:

YAN MING CHENG - SCHAUMBURG IL, US
ANSHU AGARWAL - SAN JOSE CA, US

International Classification:

G10L015/20
G10L021/00

US Classification:

704/233000, 704/275000

Abstract:

An audio filter consists of two substantially identical stages with different purposes. The first stage () whitens detected noise, while preserving speech or other audible information in an undistorted manner. The second stage () effectively eliminates the residual white noise. Each stage, in one embodiment, includes a Mel domain based error minimization stage (). A two stage Mel-frequency domain Wiener filter () is designed for each speech time frame in the Mel-frequency domain, instead of linear frequency domain. Each Mel domain based error minimization stage () minimizes the perceptual distortion and reduces the computation requirement to provide suitably filtered audible information.

US Patent:

20080065459, Mar 13, 2008

Filed:

Sep 13, 2006

Appl. No.:

11/531449

Inventors:

Louis J. Lundell - Buffalo Grove IL, US
Yan M. Cheng - Inverness IL, US
Thomas J. Mactavish - Inverness IL, US
Alfred N. Danial - Lake Zurich IL, US

Assignee:

MOTOROLA, INC. - Schaumburg IL

International Classification:

G06F 9/46

US Classification:

705 9

Abstract:

A method () or system () of facilitating goal based calendar management can include creating a calendar item () from a user entry () and an external entry (), determining () if the calendar item is a policy related item, extracting policy attributes () for the calendar item, determining () if an action is required based on the policy attributes, the user entry, and the external entry, and executing the action based on the policy attributes. The method can further include presenting () a suggested action based on the policy attributes and accepting an entry () corresponding to the suggested action. The method can further present a modification of the external entry based on the policy attributes and accept an entry corresponding to the modification of the external entry. The method can also present an action related to a common context as a result of an analysis of the attributes.

US Patent:

20080162454, Jul 3, 2008

Filed:

Jan 3, 2007

Appl. No.:

11/619465

Inventors:

Louis J. Lundell - Buffalo Grove IL, US
Yan Ming Cheng - Inverness IL, US

Assignee:

MOTOROLA, INC. - Schaumburg IL

International Classification:

G06F 17/30
G10L 15/00
G06F 17/27

US Classification:

707 5, 704251, 704 9, 704E15001, 707E17101

Abstract:

A system includes a first communications device [] to participate in a conversation with at least a second communication device []. An intelligent communication agent [] monitors the conversation for at least one keyword. In response to detecting the at least one keyword, the intelligent communication agent performs a search for multimedia content corresponding to the at least one keyword and retrieves the multimedia content. A logic engine [] determines relevant content of the multimedia content based on at least one of a conversation profile and at least one user profile for at least one of a user of the first communication device and at least a second user of the at least a second communication device. A transmission element [] transmits the relevant content to at least one of the first communication device, the at least a second communication device, and a predetermined multimedia device [

US Patent:

52847500, Feb 8, 1994

Filed:

Jun 24, 1991

Appl. No.:

7/719766

Inventors:

Bruno Silvestrini - Rome, IT
Yan Cheng - Staten Island NY

Assignee:

Aziende Chimiche Riunite Angelini Francesco A.C.R.A.F. S.p.A - Rome

International Classification:

C12Q 100
G01N 3353

US Classification:

435 79

Abstract:

A method for diagnosing a patient with an autoimmune disease using monoclonal antibodies to quantitate the amount of 680 kd, 54 kd, 44 kd or 14 kd present, wherein an elevated amount of protein compared to a patient without the disease indicates the presence of autoimmune disease.

US Patent:

50475096, Sep 10, 1991

Filed:

Feb 15, 1989

Appl. No.:

7/311650

Inventors:

Bruno Silvestrini - Rome, IT
Yan Cheng - Staten Island NY

Assignee:

Aziende Chimiche Riunite - Rome

International Classification:

C07K 1500

US Classification:

530392

Abstract:

Noval abnormally glycosylated a. sub. 2 -macroglobulins have been found in sera of patients suffering from autoimmune diseases. Such abnormally glycosylated materials have been isolated. The presence of these abnormally glycosylated materials in a patient's serum provides a means for diagnosing such diseases.

US Patent:

52583120, Nov 2, 1993

Filed:

Jun 24, 1991

Appl. No.:

7/719767

Inventors:

Bruno Silvestrini - Rome, IT
Yan Cheng - Staten Island NY

Assignee:

Aziende Chimiche Riunite Angelini Francesco A.C.R.A.F. S.p.A - Rome

International Classification:

G01N 3348

US Classification:

436 87

Abstract:

A method for diagnosing a patient with an autoimmune disease comprising assaying a blood sample from a patient for increased levels of the carbohydrate moieties of one or more proteins, said increased level of one or more of said proteins indicating the presence of an autoimmune disease.