Ji Gang Li

US Patent:

6958814, Oct 25, 2005

Filed:

Mar 1, 2002

Appl. No.:

10/090316

Inventors:

Peter G. Borden - San Mateo CA, US
Ji Ping Li - Fremont CA, US

Assignee:

Applied Materials, Inc. - Santa Clara CA

International Classification:

G01N021/55
G01N021/88

US Classification:

356432, 356445, 3562372

Abstract:

An apparatus measures a property of a layer (such as the sheet resistance of a conductive layer) by performing the following method: (1) focusing the heating beam on the heated a region (also called “heated region”) of the conductive layer (2) modulating the power of the heating beam at a predetermined frequency that is selected to be sufficiently low to ensure that at any time the temperature of the optically absorbing layer is approximately equal to (e. g. , within 90% of) a temperature of the optically absorbing layer when heated by an unmodulated beam, and (3) measuring the power of another beam that is (a) reflected by the heated region, and (b) modulated in phase with modulation of the heating beam. The measurement in act (3) can be used directly as a measure of the resistance (per unit area) of a conductive pad formed by patterning the conductive layer. Acts (1)-(3) can be repeated during fabrication of a semiconductor wafer, at each of a number of regions on a conductive layer, and any change in measurement indicates a corresponding change in resistance of the layer.

US Patent:

7141440, Nov 28, 2006

Filed:

May 2, 2005

Appl. No.:

11/120427

Inventors:

Peter G. Borden - San Mateo CA, US
Ji Ping Li - Fremont CA, US

Assignee:

Applied Materials, Inc. - Santa Clara CA

International Classification:

H01L 21/00

US Classification:

438 5, 438 7, 438 10, 438 17, 3562375

Abstract:

A property of a layer is measured by: (1) focusing a heating beam on a region (also called “heated region”) of a conductive layer (2) modulating the power of the heating beam at a predetermined frequency that is selected to be sufficiently low to ensure that at any time the temperature of an optically absorbing layer is approximately equal to (e. g. , within 90% of) a temperature of the optically absorbing layer when heated by an unmodulated beam, and (3) measuring the power of another beam that is (a) reflected by the heated region, and (b) modulated in phase with modulation of the heating beam. The measurement in act (3) can be used directly as a measure of the resistance (per unit area) of a conductive pad formed by patterning the conductive layer. Change in measurement across regions indicates a corresponding change in resistance of the layer.

US Patent:

7146103, Dec 5, 2006

Filed:

Jul 30, 2001

Appl. No.:

09/918886

Inventors:

Ting K Yee - Foster City CA, US
Peter H Chang - San Jose CA, US
Shin-Sheng Tarng - San Jose CA, US
Gregory M Cutler - Cupertino CA, US
Slava Yazhgur - Daly City CA, US
Ji Li - Cupertino CA, US
Laurence J Newell - Saratoga CA, US
James F Coward - Los Gatos CA, US
Michael W Rowan - Los Gatos CA, US
Norman L Swenson - Fremont CA, US
Matthew C Bashaw - Palo Alto CA, US

Assignee:

Forster Energy LLC - Las Vegas NV

International Classification:

H04J 14/02
H04J 1/00
H04J 1/04
H04J 1/08
H04B 10/04
H04B 10/05
H04B 10/08
H04B 10/145
H04B 10/148

US Classification:

398 68, 398 76, 398 82, 398 91, 398 95, 398152, 398163, 398184, 398196, 398205

Abstract:

A transmitter subsystem generates an optical signal which contains multiple subbands of information. The subbands have different polarization. For example, in one approach, two or more optical transmitters generate optical signals which have different polarization. An optical combiner optically combines the optical signals into a composite optical signal for transmission across an optical fiber. In another aspect, each optical transmitter generates an optical signal containing both a lower optical sideband and an upper optical sideband (i. e. , a double sideband optical signal). An optical filter selects the upper optical sideband of one optical signal and the lower optical sideband of another optical signal to produce a composite optical signal.

US Patent:

7346279, Mar 18, 2008

Filed:

Mar 25, 2002

Appl. No.:

10/107085

Inventors:

Ji Li - San Jose CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US

Assignee:

Forster Energy LLC - Las Vegas NV

International Classification:

H04B 10/08
H04B 10/00

US Classification:

398 32, 398155

Abstract:

A heterodyne communication system uses coherent data modulation that is resistant to phase noise. In particular, a pilot tone and reference clock signal are transmitted along with the modulated data to form the basis of an electrical demodulation local oscillator at the receiver. The pilot tone and/or reference clock signal carry phase noise which is correlated with the phase noise in the data signal. At the receiver, the local oscillator is generated from the pilot tone and reference clock signal in a manner so that the local oscillator also has phase noise which is correlated with the phase noise in the data signal. Thus, the two noise components can be used to cancel each other during demodulation of the data signal using the local oscillator.

US Patent:

7447436, Nov 4, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/514381

Inventors:

Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Chin-Sheng Tarng - San Jose CA, US
Gregory M. Cutler - Cupertino CA, US
Slava Yazhgur - Daly City CA, US
Ji Li - Cupertino CA, US
Laurence J. Newell - Saratoga CA, US
James F. Coward - Los Gatos CA, US
Michael W. Rowan - Los Gatos CA, US
Norman L. Swenson - Fremont CA, US
Matthew C. Bradshaw - Palo Alto CA, US

Assignee:

Forster Energy LLC - Las Vegas NV

International Classification:

H04B 10/08
H04B 10/04
H04B 10/06
H04B 10/145
H04B 10/148
H04J 14/02
H04J 1/00
H04J 1/04
H04J 1/08

US Classification:

398 95, 398 68, 398 82, 398 91, 398152, 398163, 398184, 398196, 398205

Abstract:

A transmitter subsystem generates an optical signal which contains multiple subbands of information. The subbands have different polarizations. For example, in one approach, two or more optical transmitters generate optical signals which have different polarizations. An optical combiner optically combines the optical signals into a composite optical signal for transmission across an optical fiber. In another aspect, each optical transmitter generates an optical signal containing both a lower optical sideband and an upper optical sideband (i. e. , a double sideband optical signal). An optical filter selects the upper optical sideband of one optical signal and the lower optical sideband of another optical signal to produce a composite optical signal.

US Patent:

7620318, Nov 17, 2009

Filed:

Jan 14, 2008

Appl. No.:

12/014019

Inventors:

Ji Li - San Jose CA, US
Laurence J. Newell - Mercer Island WA, US
Tin Vo - San Jose CA, US
Ting K. Yee - Foster City CA, US
Peter H. Chang - San Jose CA, US
Robert K. McElheny - Sunnyvale CA, US

International Classification:

H04B 10/08
H04B 10/00

US Classification:

398 32, 398155

Abstract:

A heterodyne communication system uses coherent data modulation that is resistant to phase noise. In particular, a pilot tone and reference clock signal are transmitted along with the modulated data to form the basis of an electrical demodulation local oscillator at the receiver. The pilot tone and/or reference clock signal carry phase noise which is correlated with the phase noise in the data signal. At the receiver, the local oscillator is generated from the pilot tone and reference clock signal in a manner so that the local oscillator also has phase noise which is correlated with the phase noise in the data signal. Thus, the two noise components can be used to cancel each other during demodulation of the data signal using the local oscillator.

US Patent:

20220414315, Dec 29, 2022

Filed:

Jul 21, 2022

Appl. No.:

17/870412

Inventors:

- Redmond WA, US
Ji LI - San Jose CA, US

International Classification:

G06F 40/114
G06F 40/151
G06N 20/00
G06F 40/106
G06F 40/186

Abstract:

Systems and methods for providing a machine learning-powered framework to transform overloaded text documents is provided. The system generates a plurality of candidate templates offline. During runtime, the system accesses a text document and analyzes the text document to identify segmentation data. The segmentation data can indicate a plurality of segments derived from the text document. The system then accesses a plurality of candidate templates, whereby each candidate template comprises a plurality of pages having a different background element that shares a common theme. The plurality of candidate templates are ranked based on at least the segmentation data. The network then generates multiple presentation pages for each of a predetermined number of top ranked candidate templates by incorporating each of the plurality of segments into a corresponding page of the plurality of pages for each of the top ranked candidate templates. The multiple presentation pages are presented for each of the top ranked candidate templates as a recommendation.

US Patent:

20220415365, Dec 29, 2022

Filed:

Jun 23, 2021

Appl. No.:

17/355634

Inventors:

- Redmond WA, US
Ji LI - San Jose CA, US

International Classification:

G11B 27/10
G06K 9/00
G06F 40/134
G06F 3/0482
G06K 9/62
G10L 15/22
G10L 15/26
G06F 40/279
G10L 25/57
G06F 16/43
G06N 20/00

Abstract:

Systems and methods for providing summarization, indexing, and post-processing of a recorded document presentation are provided. The system accesses a structured document and recordings associated with a recorded presentation given using the structured document. The system analyzes, using machine-trained models, the structured document, audio and video recordings, and recording of operations performed during the presentation. The analyzing comprises generating a transcript of the audio recording, determining context of components of the structured document, and deriving context from the video recordings and recording of operations. Based on the analyzing, the system segments the recorded presentation into a plurality of segments and generates an index of the plurality of segments that is used for post-processing.