Lei Gu

US Patent:

20130179917, Jul 11, 2013

Filed:

May 18, 2012

Appl. No.:

13/475106

Inventors:

Lei Gu - Chelmsford MA, US
Aseem Bakshi - Stamford CT, US

Assignee:

SEACHANGE INTERNATIONAL, INC. - Acton MA

International Classification:

G06Q 30/02
H04N 21/80

US Classification:

725 32, 705 1472

Abstract:

A computerized method, system and computer program product for implementing a multi-component advertising campaign, respectively comprising steps, structure and instructions for defining data representing a multi-component advertising campaign, the data specifying one or more campaign instructions, each of the campaign instructions identifying a multi-component advertisement and targeted digital media having a plurality of advertising opportunities, each advertising component of the multi-component advertisement corresponding to a respective one of the plurality of advertising opportunities; receiving an advertising request from a requesting device during presentation of the targeted digital media; selecting one of the campaign instructions from the multi-component advertising campaign corresponding to the targeted digital media; and transmitting information for inserting the multi-component advertisement identified in the selected campaign instruction into the plurality of advertising opportunities of the targeted digital media.

US Patent:

20140035438, Feb 6, 2014

Filed:

Sep 15, 2011

Appl. No.:

13/884496

Inventors:

Lei Gu - Lexington MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

H02N 2/18

US Classification:

310339

Abstract:

Energy harvester. The harvester includes a radially extending beam having a proximal end mounted a selected distance from an axis of rotation of an object and includes a mass at its distal end. The mass, beam characteristics, and the selected distance are chosen so that the beam resonant frequency during rotation of the object substantially matches the driven rotational frequency of the object.

US Patent:

8234350, Jul 31, 2012

Filed:

Dec 19, 2011

Appl. No.:

13/330409

Inventors:

Lei Gu - Chelmsford MA, US
Andrew Brian Dicks - Hadleigh, GB

Assignee:

SeaChange International, Inc. - Acton MA

International Classification:

G06F 15/16

US Classification:

709217, 709203, 709226, 709231, 709232, 725 86

Abstract:

A computerized method for dynamically generating a targeted manifest file for use by a playback device to retrieve a video stream including targeted content, includes periodically receiving a manifest file that identifies a sequence of media files, and updating a master manifest file to identify the sequence of media files from each periodically received index file, such that the master manifest file identifies a continuous master sequence of media files that constitute the video stream. The sequence of media files constitutes a portion of a video stream. The method further includes, upon request from a playback device, generating a targeted manifest file from the master sequence of media files. The targeted manifest file identifies a custom sequence of media files that includes targeted content, wherein one or more consecutive media files identified in the master sequence are substituted with a different number of targeted media files in the custom sequence.

US Patent:

20180087491, Mar 29, 2018

Filed:

Sep 27, 2016

Appl. No.:

15/277511

Inventors:

- Norwood MA, US
Kuang L. Yang - Newton MA, US
Lei Gu - Lexington MA, US

Assignee:

Analog Devices, Inc. - Norwood MA

International Classification:

F03G 7/08
G01P 15/08

Abstract:

Microelectromechanical systems (MEMS) devices are described that include a proof mass movably connected to a substrate by accordion springs disposed on opposite sides of the proof mass, with a coupler coupling two of the accordion springs together. The coupler is a bar in some implementations, and may be rigid. The coupler therefore restricts the motion of the accordion springs relative to each other. In this manner, the motion of the proof mass may be restricted to preferred types and frequencies.

US Patent:

20150276536, Oct 1, 2015

Filed:

Mar 25, 2014

Appl. No.:

14/224927

Inventors:

Lei Gu - Lexington MA, US
Stephen F. Bart - Newton MA, US
Ole Wenzel - Danish, DK

Assignee:

MKS Instruments, Inc. - Andover MA

International Classification:

G01L 21/12

Abstract:

Micro-Pirani gauge vacuum gauges are described that use low-thermal conductivity support elements. A micro-Pirani gauge or vacuum sensor can include a heating element operative to heat a gas and to produce a signal corresponding to the pressure of the gas; a platform configured to receive the heating element, with the platform having a first coefficient of thermal conductivity; and a support element connected to a substrate and configured to support the platform with the heating element within an aperture disposed in the substrate, with the support element having a second coefficient of thermal conductivity, where the second coefficient of thermal conductivity is less than the first coefficient of thermal conductivity. Multimode pressure sensing including a micro-Pirani gauge are also described.