Nan S Xu

US Patent:

20090291475, Nov 26, 2009

Filed:

Apr 22, 2009

Appl. No.:

12/428196

Inventors:

KAI QIN LAO - PLEASANTON CA, US
NAN LAN XU - SAN MATEO CA, US
NEIL A. STRAUS - EMERYVILLE CA, US

International Classification:

C12P 19/34

US Classification:

435 912

Abstract:

The present disclosure relates to the amplification of target nucleic acid sequences for various sequencing and/or identification techniques. The use of these primers, as described herein, allows for the reduction in the amplification of nonspecific hybridization events (such as primer dimerization) while allowing for the amplification of the target nucleic acid sequences.

US Patent:

20120196292, Aug 2, 2012

Filed:

Dec 21, 2011

Appl. No.:

13/333419

Inventors:

Kai Qin LAO - Pleasanton CA, US
Nan Lan Xu - San Mateo CA, US
Neil A. Straus - Emeryville CA, US

Assignee:

LIFE TECHNOLOGIES CORPORATION - Carlsbad CA

International Classification:

C12Q 1/68
C12P 19/34

US Classification:

435 612, 435 912

Abstract:

The present disclosure relates to the amplification of target nucleic acid sequences for various sequencing and/or identification techniques. The use of these primers, as described herein, allows for the reduction in the amplification of nonspecific hybridization events (such as primer dimerization) while allowing for the amplification of the target nucleic acid sequences.

US Patent:

20230110268, Apr 13, 2023

Filed:

Oct 8, 2021

Appl. No.:

17/497018

Inventors:

- Mountain View CA, US
Nan Xu - Sunnyvale CA, US

International Classification:

H04R 1/10
H01Q 1/52
H05K 9/00
H05K 7/14

Abstract:

A high permeability metal (mu-metal) shield is placed in close proximity of a main logic board (MLB) of a wearable device, such as an earbud, to reduce eNoise. Radio frequency current flow induced by an antenna radiator will flow over the MLB and its associated ground plane, including the mu-metal shield. To reduce an impact of the mu-metal shield on antenna performance, a coating process is done on the mu-metal shield, by developing a thin layer of high conductivity, low permeability copper or silver on top of the mu-metal.

US Patent:

20230083160, Mar 16, 2023

Filed:

Nov 18, 2022

Appl. No.:

18/056824

Inventors:

- Mountain View CA, US
Jiang Zhu - Cupertino CA, US
Nan Xu - Sunnyvale CA, US

Assignee:

Google LLC - Mountain View CA

International Classification:

H04B 1/10
H04B 1/04
H01Q 1/52
H01Q 21/28
H04B 1/405

Abstract:

Systems, methods, and apparatuses, including electronic devices and computer-readable storage media, for adaptively switching wireless connections between antennas of a wearable electronic device and a host electronic device. One device includes a wearable electronic device with a first and second housing, each housing including two or more antennas. The wearable electronic device is configured to establish and monitor a wireless cross-link between two antennas in different housings, or between antennas in one housing and antennas of a host electronic device. The wearable electronic device can monitor the integrity of the wireless cross-link, and establish an updated cross-link in response to the wireless cross-link not meeting a predetermined integrity threshold. The wearable electronic device can monitor a wireless cross-head link between housings of a wearable electronic device at the same time as a wireless cross-body link between the wearable electronic device and the host electronic device.