Yu S Liu

US Patent:

7742177, Jun 22, 2010

Filed:

Jan 22, 2008

Appl. No.:

12/018028

Inventors:

Shifang Li - Pleasanton CA, US
Yu Liu - Sunnyvale CA, US

Assignee:

Tokyo Electron Limited - Tokyo

International Classification:

G01B 11/14

US Classification:

356625

Abstract:

The invention can provide apparatus and methods for processing wafers using Noise-Reduction (N-R) metrology models that can be used in Double-Patterning (D-P) processing sequences, Double-Exposure (D-E) processing sequences, or other processing sequences.

US Patent:

7889641, Feb 15, 2011

Filed:

Jul 18, 2007

Appl. No.:

11/779429

Inventors:

Yu Liu - San Jose CA, US
Gordon Bolt - Apex NC, US
Edward Sykes - Cary NC, US

Assignee:

Opnet Technologies, Inc. - Bethesda MD

International Classification:

G06F 11/00

US Classification:

370228

Abstract:

A path-flow formulation of defining MPLS FRR bypass LSPs is presented. The path-flow formulation comprises first identifying a set of candidate bypass LSPs, each of which meets various network constraints and has an explicit route around a network facility to be protected. The constraints may include Quality of Service (QoS) guarantees, implementation requirements, network element resource limitations, and resiliency requirements. The constraints may be user-selected, and may be non-linear. The set of candidate bypass LSPs form a linear programming (LP) problem, or an integer linear programming (ILP) problem if the allowable number of bypass LSPs is constrained. In an optimization step, LP solutions are used to select the bypass LSPs from among the candidate bypass LSPs by allocating bandwidth to them.

US Patent:

20100041986, Feb 18, 2010

Filed:

Jul 23, 2009

Appl. No.:

12/508000

Inventors:

Tho Hoang NGUYEN - Huntington Beach CA, US
Peter C. CHEN - Irvine CA, US
Alan DE LA RAMA - Cerritos CA, US
Yu LIU - Irvine CA, US

International Classification:

A61B 6/02
A61B 18/14

US Classification:

600427, 606 33

Abstract:

An ablation and monitoring system comprises a catheter, an optical coherence tomography (OCT) system, and an ablation generator. The catheter comprises one or more optical fibers to transmit a light beam to a tissue material and collect a reflected light from the tissue material. The OCT system is in optical communication with the catheter via the one or more optical fibers, providing the light beam to the one or more optical fibers and receiving the reflected light from the one or more optical fibers. The ablation generator is in electrical communication with the OCT system and with the catheter. The ablation generator provides radio frequency energy to the catheter for ablating the tissue material, monitors and assesses the ablation based on an information signal received from the OCT system.

US Patent:

20120265061, Oct 18, 2012

Filed:

Oct 31, 2011

Appl. No.:

13/285167

Inventors:

John SLIWA - Los Altos Hills CA, US
Yu LIU - Irvine CA, US

Assignee:

ST. JUDE MEDICAL, INC. - St. Paul MN

International Classification:

A61B 6/00
A61B 8/00

US Classification:

600427, 600425

Abstract:

A method for performing elastographic deformation mapping of tissues and plaques comprises: introducing a distal portion of a catheter to an interior of an interior body of a patient; applying, from a palpator in the distal portion, one of a directed fluid or a mechanical indenter to produce a surface-applied palpation force to a target area of the interior body to mechanically displace the interior body and cause elastographic deformation of the target area of one or more surface and subsurface tissues and plaques; and directing and delivering an OCT (optical coherence tomography) beam, from an OCT imaging sensor in the distal portion, for OCT deformation detection including elastographic deformation measurement to provide elastographic mapping of the target area.

US Patent:

20120265062, Oct 18, 2012

Filed:

Oct 31, 2011

Appl. No.:

13/285178

Inventors:

John SLIWA - Los Altos Hills CA, US
Yu LIU - Irvine CA, US

Assignee:

ST. JUDE MEDICAL, INC. - St. Paul MN

International Classification:

A61B 6/00
A61B 8/00

US Classification:

600427, 600425

Abstract:

An optical coherence tomography (OCT) catheter, for performing high performance elastographic deformation mapping of tissues and plaques, comprises: a catheter having elongated catheter body extending longitudinally between a proximal end and a distal end along a longitudinal axis, the catheter body including a distal portion at the distal end and a catheter lumen; a palpator, disposed in the distal portion, to apply one of a directed fluid or a mechanical indenter to produce a surface-applied palpation force to a target area of the interior body to mechanically displace the interior body and cause elastographic deformation of the target area of one or more surface and subsurface tissues and plaques; and OCT imaging sensor, disposed in the distal portion, to direct and deliver OCT beam for OCT deformation detection including elastographic deformation measurement to provide elastographic mapping of the target area.

US Patent:

20130031378, Jan 31, 2013

Filed:

Jul 26, 2011

Appl. No.:

13/190860

Inventors:

Frederick R. Schindler - Sunnyvale CA, US
Yu Liu - Mountain View CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 1/00

US Classification:

713300

Abstract:

An apparatus and method for transferring power in an inline switch device are provided. The method comprises drawing power from an inline power source and transferring, by the powered device subsystem, a portion of the power that is not consumed by the powered device subsystem to one or more connected powered devices. The method further comprises determining a limit of current drawn by the powered device subsystem during transfer of power by the powered device subsystem to the one or more powered devices that results in the transfer of a desired amount of power to the one or more powered devices, and adjusting the limit for the current drawn by the powered device subsystem to the determined current limit.

US Patent:

61389501, Oct 31, 2000

Filed:

Oct 6, 1998

Appl. No.:

9/167209

Inventors:

Barnaby Sam Wainfan - Long Beach CA
Yu Ping Liu - Rolling Hills CA
Daniel R. Rihn - Long Beach CA
Douglas William Leggett - Los Angeles CA
Martin James Georges - Corona CA
Jeffry Scott Philhower - Segundo CA
Douglas Ellwood Shultz - Brea CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

B64B 124
B64D 2700
B01D 3900

US Classification:

244 53B

Abstract:

In accordance with the present invention, there is provided an aircraft engine air intake cover for use with an air intake which is characterized by an air velocity profile therewithin. The air intake cover is provided with an air induction plate which disposed across at least a portion of the air intake. The air intake cover is further provided with a multitude of air induction ducts. The induction ducts are disposed about and extend through the air induction plate. Each induction duct has a duct inlet, a duct outlet and a duct body interposed between the duct inlet and the duct outlet. The duct inlets each respectively define an effective inlet diameter. The duct bodies each respectively define a duct body length which is greater than the associated effective duct inlet diameter. The duct outlets each respectively define an effective outlet diameter greater than the effective inlet diameter for increasing the cohesiveness of the air velocity profile within the air intake.

US Patent:

20220353262, Nov 3, 2022

Filed:

Jul 15, 2022

Appl. No.:

17/866398

Inventors:

- San Francisco CA, US
Lars Kristian Johansen - San Francisco CA, US
Venkat Ramanan Viswanathan - Fremont CA, US
Yu Liu - San Mateo CA, US
Shantanu Sardal - Jersey City NJ, US

International Classification:

H04L 9/40
H04L 41/0806

Abstract:

An authentication system facilitates efficient generation of authentication integrations with third-party identity providers for client systems. The authentication system provides one or more interfaces configured to receive requests to make authentication integrations available for a third-party identity provider. The requests to make authentication integrations available include integration information for the relevant identity provider. Based on the request to make authentication integrations available, the authentication system generates an identity provider profile for the identity provider that can be used to generate authentication integrations with the identity provider for one or more client systems. Once the identity provider profile is generated, the authentication system uses the identity provider profile to generate authentication integrations for one or more client systems that request authentication through the third-party identity provider. In doing so, the authentication system provides an efficient process for providing authentication integrations with identity providers requested by client systems.