Wei H Huang

US Patent:

8522664, Sep 3, 2013

Filed:

Oct 31, 2011

Appl. No.:

13/285049

Inventors:

Yun Chen - Clarksburg MD, US
Wei Huang - Clarksburg MD, US
Haoxing Chen - Clarksburg MD, US

International Classification:

F41H 5/02
F41H 7/00
F41H 1/00

US Classification:

89 3602, 89 3605, 2 25

Abstract:

An apparatus for providing protection from blast and ballistic energy is provided. The apparatus includes a liquid storage mechanism containing a liquid and a rigid layer internal to the liquid storage mechanism. The apparatus also includes a pressure release mechanism configured to allow the liquid to exit the liquid storage mechanism when a pressure sufficient to open or activate the pressure release mechanism contacts the liquid storage mechanism and presses the liquid storage mechanism against the rigid layer.

US Patent:

20070204879, Sep 6, 2007

Filed:

Mar 1, 2007

Appl. No.:

11/712862

Inventors:

Yun Chen - Germantown MD, US
Wei Huang - Germantown MD, US

International Classification:

A61C 15/00

US Classification:

132325

Abstract:

A handle houses a dental floss supply reel and a dental floss take-up reel in separate chambers. Movement and tension of a single long strand of dental floss through a pair of arched flossing arms is controlled by a new dental floss supply control knob, and a used dental floss take-up control knob. Spring loaded ratchets control the action of the reels. A hygienic cover protects the flossing arms. A small brush stored in the cover cleans the used dental floss of debris.

US Patent:

20130183701, Jul 18, 2013

Filed:

Jun 7, 2011

Appl. No.:

13/703274

Inventors:

Qisheng Zhang - Chapel Hill NC, US
Wei Gang Huang - Chapel Hill NC, US
John Sondek - Chapel Hill NC, US
Stephanie Hicks - Hillsborough NC, US

International Classification:

C09B 57/00
C12Q 1/44
C09B 11/24

US Classification:

435 19, 546 23, 544 70

Abstract:

The present invention provides fluorogenic substrates and methods of use in detecting and analyzing phospholipase C isozyme (PLC) activity.

US Patent:

20210318863, Oct 14, 2021

Filed:

Aug 25, 2020

Appl. No.:

17/002762

Inventors:

- Redwood Shores CA, US
Christopher Wayne Parsons - Apex NC, US
Wei Huang - Cary NC, US
Cheryl Lynn Adams - Cary NC, US
Paul D. Worley - Newton Grove NC, US

International Classification:

G06F 8/71
H04L 12/24
H04L 12/28
H04L 29/06

Abstract:

A method for managing multiple software defined wide area network (SD-WAN) software versions includes providing a controller that defines an overall configuration for an SD-WAN and that creates configuration registries for individual SD-WAN appliances to implement their respective portions of the overall configuration. The controller generates, in an intermediate configuration language registry format, a first and second configuration registry for first and second SD-WAN appliance that respectively execute first and second versions of SD-WAN software. The controller respectively transmits the first and second configuration registries to the first and second SD-WAN appliances, which use the first and second configuration registries to configure themselves. The first and second SD-WAN appliances negotiate with each other for common SD-WAN features usable to implement configurations specified in the first and second configuration registries.

US Patent:

20210099375, Apr 1, 2021

Filed:

Nov 20, 2020

Appl. No.:

17/100385

Inventors:

- Cupertino CA, US
Wai Yee Lui - Chapel Hill NC, US
Wei Huang - Cary NC, US
Jigar Mehta - Morrisville NC, US
Justin Allen Patterson - Morrisville NC, US
Todd Martin - Campbell CA, US

International Classification:

H04L 12/26
H04L 12/24
H04L 12/751
H04L 12/707
H04L 12/753
H04L 12/741
H04L 12/743
H04L 12/803
H04L 12/935
H04L 29/12
H04M 1/725

Abstract:

Techniques are described to automatically activate and deactivate standby backup paths in response to changing bandwidth requirements in an adaptive private network (APN). The APN includes one or more regular active wide area network (WAN) links in an active mode and an on-demand WAN link in a standby mode. The on-demand WAN link is activated to supplement the conduit bandwidth when an available bandwidth of the conduit falls below a pre-specified trigger bandwidth threshold and the conduit bandwidth usage exceeds a usage threshold of a bandwidth of the conduit that is being supplied by the active paths (BWc). The on-demand WAN link is deactivated to standby mode when an available bandwidth of the conduit is above the pre-specified trigger bandwidth threshold and the conduit bandwidth usage drops below the usage threshold of BWc techniques for adaptive and active bandwidth testing of WAN links in an APN are also described.

US Patent:

20210075737, Mar 11, 2021

Filed:

Oct 27, 2020

Appl. No.:

17/081972

Inventors:

- Cupertino CA, US
Wei Huang - Cary NC, US
Sonia Kiang Rovner - Chapel Hill NC, US

International Classification:

H04L 12/805
G06F 11/20
G06F 11/14
G06F 11/07
H04L 12/24
H04L 29/08
H04L 12/751
H04L 12/721
H04L 12/26
H04L 12/841
H04L 12/801

Abstract:

Systems and techniques are described for a path maximum transmission unit (MTU) discovery method that allows the sender of IP packets to discover the MTU of packets that it is sending over a conduit to a given destination. The MTU is the largest packet that can be sent through the network along a path without requiring fragmentation. The path MTU discovery method actively probes each sending path of each conduit with fragmentation enabled to determine a current MTU and accordingly increase or decrease the conduit MTU. The path MTU discovery process is resilient to errors and supports retransmission if packets are lost in the discovery process. The path MTU discovery process is dynamically adjusted at a periodic rate to adjust to varying network conditions.

US Patent:

20200364242, Nov 19, 2020

Filed:

May 29, 2020

Appl. No.:

16/888641

Inventors:

- Cupertino CA, US
Christopher Wayne Parsons - Apex NC, US
Wei Huang - Cary NC, US
Adam Phillip Schultz - Apex NC, US
Robert W. Dickey - Raleigh NC, US

International Classification:

G06F 16/27
G06F 16/21

Abstract:

System and techniques are described which apply a method for automatic database schema migration. An initial database is installed, according to rules that define tables of data, in an adaptive private network (APN) having a centralized management system including a network control node (NCN) coupled through the APN to a plurality of client nodes, wherein the NCN provides timing and control to the client nodes. An update to the initial database is received, wherein the initial database includes a first table of data stored in a first set of columns and the updated database includes a modified first table having a second set of columns that has a different number of columns as compared to the first table is automatically detected. One or more columns from the second set of columns that are different than the first set of columns are updated for data content.

US Patent:

20200336383, Oct 22, 2020

Filed:

Jun 29, 2020

Appl. No.:

16/916053

Inventors:

- Cupertino CA, US
Wei Huang - Cary NC, US

International Classification:

H04L 12/24
H04L 12/751
H04L 12/753
H04M 1/725
H04L 12/741
H04L 12/743
H04L 29/12
H04L 12/707
H04L 12/26
H04L 12/935
H04L 12/803

Abstract:

Techniques for providing a backup network path using a standby wide area network (WAN) link with reducing monitoring. Packet loss and latency metrics are monitored for network paths in an adaptive private network (APN) connecting a first user and a second user according to control traffic operating at a first control bandwidth for each network path. A determination is made that a first network path uses a standby WAN link, has packet loss and latency metrics indicative of a good quality state, and has at least one characteristic that identifies the first network path as a backup network path. The control traffic is then reduced for the backup network path to a second control bandwidth substantially less than the first control bandwidth. The backup network path is made active when the number of active network paths is less than or equal to a minimum number.