Manish K Sharma

US Patent:

6480825, Nov 12, 2002

Filed:

Jan 29, 1998

Appl. No.:

09/015393

Inventors:

Manish Sharma - Somerset NJ
Richard J. Mammone - Bridgewater NJ

Assignee:

T-NETIX, Inc. - Dallas TX

International Classification:

G01L 1700

US Classification:

704270, 704273, 704275, 379 67, 379 88

Abstract:

The present invention is a reliable system and method for detecting a recorded voice, which can be employed independently or to provide protection from fraudulent use of a recording to defeat an automatic speaker recognition system. Several techniques and systems are employed either independently or in combination to verify that a detected audio sample is live and not recorded. Temporal speech characteristics of an audio sample are analyzed to determine whether a sample under examination is so similar to a previous sample as to indicate a recording. Communications channel characteristics are examined to determine whether an sample was recorded on a different channel from a predetermined communications channel. A pattern classifier is trained to distinguish between live and recorded speech. Finally, an âaudio watermarkâ is used to determine whether a detected audio sample is a recording of a previous communication by an authorized user.

US Patent:

6738543, May 18, 2004

Filed:

May 30, 2002

Appl. No.:

10/160383

Inventors:

Karl W. Beeson - Princeton NJ
Lawrence W. Shacklette - Maplewood NJ
Manish Sharma - Princeton NJ
Han Zou - Windsor NJ

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

G02B 626

US Classification:

385 27, 385 10, 385 16, 385 37

Abstract:

A hitless wavelength selective optical device includes a first thermo-optic switch (TOS), a second TOS, a first waveguide, a second waveguide, a third waveguide, a heating element and a control unit. The first TOS includes receives a wavelength division multiplexed (WDM) signal at a first port of the first TOS. The second TOS provides at least one channel of the WDM signal at a first port of the second TOS. The first waveguide is coupled between second ports of the first and second TOS. The second waveguide includes a tunable filter that reflects a selected channel from the received WDM signal and coupled between the third ports of the first and second TOS.

US Patent:

6834138, Dec 21, 2004

Filed:

Oct 26, 2001

Appl. No.:

10/061766

Inventors:

Mark F. Krol - Painted Post NY
Manish Sharma - Princeton NJ

Assignee:

Corning Incorporated - Corning NY

International Classification:

G02B 635

US Classification:

385 18, 385 16

Abstract:

The present invention is a modular optical switch fabric that includes optical modules that are inserted into an optical chassis by way of plug-in electrical connectors. Each optical module includes a collimator panel and a beam steering panel secured to a frame member. The frame member is configured to position the collimator panel in fixed optical alignment relative to the beam steering panel. The modular optical switch fabric is upgradeable. The optical switch fabric allows users to expand the switch fabric capacity by simply adding switch fabric modules. The optical switch fabric also features modules that can be replaced and repaired without causing interruptions in service.

US Patent:

7323804, Jan 29, 2008

Filed:

Apr 21, 2004

Appl. No.:

10/829413

Inventors:

Eric C. Williams - Los Alamos NM, US
David F. Arnone - Mountain View CA, US
Manish Sharma - Cupertino CA, US

Assignee:

Bookham Technology plc - Northamptonshire

International Classification:

H01L 41/08

US Classification:

31032302

Abstract:

A mover assembly () that moves or positions an object () along a first axis includes a motor () and a coupling assembly (). The motor () includes a motor output () that is moved along the first axis and about the first axis. The coupling assembly () includes a stage () that couples the motor output () to the object () and a stage guide () that guides the motion of the stage () along the first axis. In one embodiment, the stage guide () is a linear bearing that allows for motion of the stage () along the first axis and inhibits motion of the stage () about the first axis, along a second axis and along a third axis. Additionally, the coupling assembly () can include a measurement system () that monitors the movement of the stage ().

US Patent:

20030046083, Mar 6, 2003

Filed:

Nov 21, 1997

Appl. No.:

08/976279

Inventors:

EDWARD J. DEVINNEY - DELANCO NJ, US
MANISH SHARMA - SOMERSET NJ, US
CHRIS KEYSER - ROEBLING NJ, US
RAINER ROTHACKER - CLIFFWOOD BEACH NJ, US
RICHARD J. MAMMONE - BRIDGEWATER NJ, US

International Classification:

G10L021/00

US Classification:

704/273000

Abstract:

The present invention applies speech recognition technology to remote access, verification, and identification applications. Speech recognition is used to raise the security level of many types of transaction systems which previously had serious safety drawbacks, including: point of sale systems, home authorization systems, systems for establishing a call to a called party (including prison telephone systems), internet access systems, web site access systems, systems for obtaining access to protected computer networks, systems for accessing a restricted hyperlink, desktop computer security systems, and systems for gaining access to a networked server. A general speech recognition system using communication is also presented. Further, different types of speech recognition methodologies are useful with the present invention, such as “simple” security methods and systems, multi-tiered security methods and systems, conditional multi-tiered security methods and systems, and randomly prompted voice token methods and systems.

US Patent:

20040028319, Feb 12, 2004

Filed:

Jul 3, 2003

Appl. No.:

10/613966

Inventors:

Mahesh Ajgaonkar - New Brunswick NJ, US
Andrey Kobyakov - North Brunswick NJ, US
June-Koo Rhee - Morganville NJ, US
Manish Sharma - Princeton NJ, US
Ioannis Tomkos - Somerset NJ, US
Michael Vasilyev - Belle Mead NJ, US
James Grochocinski - Corning NY, US
Shiva Kumar - Painted Post NY, US
Gregory Luther - Hartford CT, US

International Classification:

G02B006/26
G02B006/42

US Classification:

385/016000

Abstract:

An optical communication system that includes an optical network is disclosed having a plurality of nodes and a plurality of optical fiber links which includes optical fiber links that interconnect the nodes. Signals passing through the network are similarly pre-compensated and/or similarly post-compensated. The network preferably includes dispersion-managed optical fiber spans, and preferably further includes distributed amplification, preferably erbium amplifiers and/or Raman amplifiers. Preferably, the network is transparent.

US Patent:

20130114957, May 9, 2013

Filed:

Nov 3, 2011

Appl. No.:

13/288887

Inventors:

Jonathan D. HOMA - Livingston NJ, US
Manish Sharma - Morgan Hill CA, US

International Classification:

H04J 14/02

US Classification:

398 48

Abstract:

An optical switching device with a switch-and-select architecture uses a single multi-port optical channel router, such as a wavelength selective switch, as a bidirectional switching device. The optical switching device includes the multi-port optical channel router and optical circulators coupled to the input/output ports of the multi-port optical channel router. The optical circulators couple one or more output ports and one or more input ports of the optical switching device to the input/output ports of the optical channel router so that the optical channel router provides symmetric, bi-directional switching at an optical network node.

US Patent:

58625194, Jan 19, 1999

Filed:

Apr 1, 1997

Appl. No.:

8/827562

Inventors:

Manish Sharma - Piscataway NJ
Richard J. Mammone - Bridgewater NJ

Assignee:

T-Netix, Inc. - Englewood CO

International Classification:

G10L 506
G10L 900

US Classification:

704231

Abstract:

The present invention relates to a method for segmenting speech into subword speech segments. Optimal boundary locations for each estimate of a number of segments are determined within an estimated range of the number of segments. In addition, an optimality criteria is found for each estimate of the number of segments within the range. Using the optimality criteria, the optimal number of subwords are determined. From the location of the boundaries and the optimal number of segments, data can be clustered or speech can be segmented. The method can be used in data processing systems, speaker verification, medium size vocabulary speech recognition systems, language identification systems and coarse subword level speech segmentation processes.