Manish 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:

7856036, Dec 21, 2010

Filed:

Feb 25, 2008

Appl. No.:

12/036644

Inventors:

Joe Polland - Eden Prairie MN, US
Manish Kumar Sharma - Eden Prairie MN, US
Xinkuan Zhou - Eden Prairie MN, US

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04L 12/28

US Classification:

370498

Abstract:

A communication network comprises a first central digital subscriber line (DSL) unit having at least one application port and a plurality of DSL ports; a first remote DSL unit having at least one application port and at least one DSL port, wherein the first remote DSL unit is communicatively coupled to the central DSL unit via a first single independent DSL pair having a first EOC channel; and a second remote DSL unit having at least one application port and at least one DSL port, wherein the second remote DSL unit is communicatively coupled to the central DSL unit via a second single independent DSL pair having a second EOC channel; wherein the at least one application port in the central DSL unit is communicatively coupled to an application port in at least one of the first remote DSL unit and the second remote DSL unit.

US Patent:

7864667, Jan 4, 2011

Filed:

Mar 10, 2008

Appl. No.:

12/045368

Inventors:

Xinkuan Zhou - Eden Prairie MN, US
Clifton Powers - Raleigh NC, US
Laxman Anne - Eden Prairie MN, US
Manish Sharma - Eden Prairie MN, US
Joe Polland - Eden Prairie MN, US

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

G06F 11/00
G06F 11/20
H04L 12/66

US Classification:

370217, 370360, 370463, 714 25

Abstract:

A communication system comprising at least one communication unit. Each communication unit includes an interface port, a first-digital-subscriber-line port, a second-digital-subscriber-line port, and a central processing unit. The central processing unit is communicatively coupled to receive information indicative of the operability of the first-digital-subscriber-line port and the second-digital-subscriber-line port. The at least one communication unit is implemented on the physical layer in single-pair mode. The at least one communication unit is configured to switch from sending timeslots in dual-pair mode to sending timeslots in 1+1 protection mode when communication on one of the first-digital-subscriber-line port and the second-digital-subscriber-line port fails.

US Patent:

7869464, Jan 11, 2011

Filed:

Feb 25, 2008

Appl. No.:

12/036678

Inventors:

Joe Polland - Eden Prairie MN, US
Manish Kumar Sharma - Eden Prairie MN, US
Xinkuan Zhou - Eden Prairie MN, US
Fu-Chin Yang - Beijing, CN

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04J 3/00

US Classification:

370498

Abstract:

A communication network comprises a first digital subscriber line (DSL) unit having a plurality of application ports and at least one DSL port; and a second DSL unit having a plurality of application ports and at least one DSL port; wherein the first DSL unit is communicatively coupled to the second DSL unit via a DSL pair coupled to the at least one DSL port in each of the first and second DSL units; and wherein each of the first and second DSL units are configured to receive a signal of a first interface format over one of the plurality of application ports, extract timeslots from the received first interface format signal, transmit the timeslots over the at least one DSL port, and use timeslots received over the at least one DSL port to generate at least one second signal of a dissimilar interface format.

US Patent:

7869465, Jan 11, 2011

Filed:

Jul 14, 2008

Appl. No.:

12/172436

Inventors:

Xinkuan Zhou - Eden Prairie MN, US
Clifton Powers - Raleigh NC, US
Laxman Anne - Eden Prairie MN, US
Manish Sharma - Eden Prairie MN, US
Joe Polland - Eden Prairie MN, US

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04J 3/00

US Classification:

370498

Abstract:

A communication system comprises a first communication unit having a plurality of application ports; and a second communication unit having a plurality of application ports and coupled to the first communication unit; wherein the first communication unit is configured to extract timeslots from a first signal having a first interface format and from a second signal having a second interface format, and to insert the extracted timeslots into a frame for transmission to the second communication unit; wherein the second communication unit is configured to pass the first interface format signal to an application port of a similar interface format and to pass the second interface format signal to an application port of a third dissimilar interface format based on the order of the extracted timeslots in the frame transmitted from the first communication unit.

US Patent:

7953108, May 31, 2011

Filed:

Feb 25, 2008

Appl. No.:

12/036663

Inventors:

Joe Polland - Eden Prairie MN, US
Manish Kumar Sharma - Eden Prairie MN, US
Xinkuan Zhou - Eden Prairie MN, US
Rongfen Xu - Beijing, CN

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04J 3/22

US Classification:

370466

Abstract:

A method of using a digital subscriber link unit as a media converter, the method comprising coupling a first signal of a first type to a first port of the digital subscriber link unit, converting the first signal of the first type to a second signal of the second type with the digital subscriber link unit and outputting the second signal of the second type from a second port of the digital subscriber link unit. The first port and the second port are not G. SHDSL ports.

US Patent:

8085816, Dec 27, 2011

Filed:

Jul 14, 2008

Appl. No.:

12/172433

Inventors:

Xinkuan Zhou - Eden Prairie MN, US
Clifton Powers - Raleigh NC, US
Laxman Anne - Eden Prairie MN, US
Manish Sharma - Eden Prairie MN, US
Joe Polland - Eden Prairie MN, US

Assignee:

ADC DSL Systems, Inc. - Eden Prairie MN

International Classification:

H04J 1/10

US Classification:

370492, 370254, 370255, 370501

Abstract:

A communication system comprises a central unit configured to transmit and receive communication signals; a remote unit configured to transmit and receive communication signals; and a regenerator unit configured to regenerate and transmit received communication signals, the regenerator unit comprising a first interface, a second interface and a control and status circuit configured to control operation of the first and second interface, wherein each interface is configured to operate as an independent logical regenerator unit; wherein the central unit and the remote unit communicate over a first communication loop via the first independent interface of the regenerator unit.