Nan Liu

US Patent:

20210106248, Apr 15, 2021

Filed:

Oct 10, 2019

Appl. No.:

16/598849

Inventors:

- Palo Alto CA, US
Nan Liu - Palo Alto CA, US
Jia Li - Palo Alto CA, US

International Classification:

A61B 5/0452
G06T 11/60
G16H 50/20

Abstract:

A biometric signal graphical analysis system is described. In an embodiment, a graphical data preprocessing module is configured to receive a biometric graph and generate a normalized biometric graph. A graphical image analysis module is configured to receive and machine process the normalized biometric graph and generate a machine representation. A biometric information module generates an additional machine representation of biometric information combinable with the machine representation of the graphical image analysis module. A diagnosis module is configured to receive and combine the machine representation and the additional machine representation.

US Patent:

20210093203, Apr 1, 2021

Filed:

Sep 30, 2019

Appl. No.:

16/588443

Inventors:

- Palo Alto CA, US
YuJia LI - Palo Alto CA, US
Nan LIU - Palo Alto CA, US
Ke ZHAI - Palo Alto CA, US

International Classification:

A61B 5/024
A61B 5/05
A61B 5/00
G06N 3/08
G06N 20/00

Abstract:

A computer-implemented method for determining a heart rate and respiratory rate from a radio frequency signal comprises inputting a radio frequency signal obtained from a test subject into a neural network. The method further comprises training the neural network using the radio frequency signal and extracting a heart rate and a respiratory rate from the radio frequency signal using the neural network. Further, the method comprises comparing the heart rate and the respiratory rate extracted from the radio frequency signal to a verifiable heart rate and verifiable respiratory rate for the test subject to compute an error measure. Finally, the method comprises using the error measure to apply back propagation to adjust front end parameters for one or more layers of the neural networks to improve a prediction accuracy of the neural network.

US Patent:

20210042390, Feb 11, 2021

Filed:

Aug 7, 2019

Appl. No.:

16/534033

Inventors:

- Armonk NY, US
Xianying Liu - Fremont CA, US
Sheng Hua Bao - San Jose CA, US
Nan Liu - San Jose CA, US
Pathirage Dinindu Sujan Udayanga Perera - San Jose CA, US
Feng Wang - Santa Clara CA, US
Abhinandan Kelgere Ramesh - San Jose CA, US

International Classification:

G06F 17/27
G06F 16/93

Abstract:

A mechanism is provided in data processing system comprising at least one processor and at least one memory, the at least one memory comprising instructions that are executed by the at least one processor to specifically configure the at least one processor to implement a common labeled annotated document converter. A transcription service receives a natural language electronic document to be annotated for processing by a cognitive computing system. The cognitive computing system performs natural language processing and cognitive analysis of features extracted from content of the natural language electronic document based on annotations associated with the natural language electronic document. The transcription service processes the natural language electronic document to convert the natural language electronic document from a first format of the natural language electronic document to a common labeled annotated document (CLAD) format. The CLAD format specifies a common set of annotations useable by different elements of the cognitive computing system.

US Patent:

20210030276, Feb 4, 2021

Filed:

Jul 29, 2019

Appl. No.:

16/524772

Inventors:

- Palo Alto CA, US
Fan Li - Palo Alto CA, US
Nan Liu - Saratoga CA, US
Christopher Wing - San Francisco CA, US
Ke Zhai - Santa Clara CA, US
Ning Zhang - Mountain View CA, US

International Classification:

A61B 5/00
A61B 5/0205
A61B 5/0255
A61B 5/103
G06N 3/02
G06N 20/20
A61B 7/02

Abstract:

Embodiments of remote health monitoring systems and methods are disclosed. In one embodiment, a plurality of sensors is configured for contact-free monitoring of at least one bodily function. A signal processing module communicatively coupled with the plurality of sensors is configured to receive data from the plurality of sensors. A first sensor is configured to generate a first set of data associated with a first bodily function. A second sensor is configured to generate a second set of data associated with a second bodily function. A third sensor is configured to generate a third set of data associated with a third bodily function. The signal processing module is configured to receive and process the first set of data, the second set of data, and the third set of data. The signal processing module is configured to generate at least one diagnosis of a health condition responsive to the processing.

US Patent:

20140103297, Apr 17, 2014

Filed:

Aug 30, 2013

Appl. No.:

14/014975

Inventors:

- Palo Alto CA, US
Fung Ling Yap - Geylang East Central, SG
Zhenan Bao - Stanford CA, US
Nan Liu - Menlo Park CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

H01L 29/16
H01L 29/45

US Classification:

257 29, 423448, 252506, 257746

Abstract:

Various methods and apparatuses involve the provision of graphitic material. As consistent with one or more aspects herein, an organic material template is used to restrict growth, in a width dimension, of graphitic material grown from the organic material template. Graphitic material is therein provided, having a set of characteristics including electrical behavior and shape, with a representative width defined by the width dimension, based on the organic material template.