Kenneth C Cheung

US Patent:

20140018441, Jan 16, 2014

Filed:

Jul 12, 2013

Appl. No.:

13/941405

Inventors:

Charles Fracchia - Cambridge MA, US
Neil Gershenfeld - Cambridge MA, US
Kenneth Cheung - Freehold NJ, US

International Classification:

C07H 21/04

US Classification:

514777, 536 231, 530395, 5303911, 422149

Abstract:

In exemplary implementations of this invention, hierarchical, nanometer-precise assembly is performed: A first structural unit is attached to a solid substrate in a first fluidic flow. A second structural unit is attached to the first structural unit in a second fluidic flow, a third structural unit is attached to the second structural unit in a third fluidic flow, and so on, until a target structure comprising the structural units is assembled. The first, second, third and so on fluidic flows are separate and occur in order in a temporal sequence. During the temporal sequence, a specific permutation of nucleobases is used repeatedly, in separate fluidic flows which occur at different times, to form multiple attachments between structural units in an assembly. The assembled target structure is removed from the solid substrate. Attachments between the structural units may be formed by nucleobase pairing.

US Patent:

20210146581, May 20, 2021

Filed:

Nov 19, 2020

Appl. No.:

16/952896

Inventors:

- Cambridge MA, US
- Washington DC, US
Kenneth Cheung - Emerald Hills CA, US
Christine Gregg - Emerald Hills CA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA
United States Government as represented by The Administrator of NASA - Washington DC

International Classification:

B29C 45/00
B29C 65/48
B29C 65/60
B29C 65/02
B29C 65/00

Abstract:

A method for the design, manufacture, and assembly of modular lattice structures composed of cuboctahedron unit cells.

US Patent:

20200283121, Sep 10, 2020

Filed:

Mar 9, 2020

Appl. No.:

16/812502

Inventors:

- Cambridge MA, US
Neil Gershenfeld - Cambridge MA, US
Sean Swei - Moffett Field CA, US
Nicholas Cramer - Moffett Field CA, US
Kenneth Cheung - Moffett Field CA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B64C 3/48
C08L 79/08
C08K 7/14
B64C 3/52
B64C 3/26

Abstract:

A shape-morphing ultralight structure using materials that dramatically increase the efficiency of load-bearing aerostructures that includes a programmable material system applied as a large-scale, ultralight, and conformable (shape-morphing) aeroelastic structure. The use of a modular, lattice-based, ultralight material results in stiffness and density typical of an elastomer. This, combined with a building block-based manufacturing and configuration strategy, enables the rapid realization of new adaptive structures and mechanisms. The heterogeneous design with programmable anisotropy allows for enhanced elastic and global shape deformation in response to external loading, making it useful for tuned fluid-structure interaction. The present invention demonstrates an example application experiment using two building block types for the primary structure of a 4.27 m wingspan aircraft with spatially programed elastic shape morphing to increase aerodynamic efficiency.

US Patent:

20140282634, Sep 18, 2014

Filed:

Mar 14, 2014

Appl. No.:

14/214431

Inventors:

- San Francisco CA, US
Daniel Wei-Tze Hsiung - San Francisco CA, US
Ian Graeme Melven - San Francisco CA, US
Brian Hardie - San Francisco CA, US
Joseph Gutierrez - San Francisco CA, US
Marshall Allen Beddoe - San Francisco CA, US
Pankaj Gupta - San Francisco CA, US
Bernardo de Seabra - San Francisco CA, US
Dru Nelson - San Carlos CA, US
Kenneth Cheung - San Francisco CA, US
Jason Endo - San Francisco CA, US

Assignee:

BRIGHTROLL, INC. - San Francisco CA

International Classification:

H04N 21/2547
H04N 21/81
G06Q 30/02

US Classification:

725 1, 725 32

Abstract:

Techniques and systems for operating a video ad exchange includes controlling an ad server to receive ad requests from viewer devices, provide ad responses to viewer devices, generate an ad delivery data file that includes information about delivery of ads to the viewer devices, and transfer the ad delivery data file to a distributed computing cloud. The technique further includes controlling an ad data infrastructure mechanism to download the cloud-based ad delivery data file into a local memory, and process the copied ad delivery data file to generate billing data. An ad data infrastructure mechanism receives a configuration file from the ad server, verifies that all items in the configuration file from the ad server were used in the generation of the first billing data, and removes non-verifiable items from the first billing data to generate a final billing data.

US Patent:

20140282716, Sep 18, 2014

Filed:

Mar 14, 2014

Appl. No.:

14/214547

Inventors:

- San Francisco CA, US
Daniel Wei-Tze Hsiung - San Francisco CA, US
Ian Graeme Melven - San Francisco CA, US
Brian Hardie - San Francisco CA, US
Joseph Gutierrez - San Francisco CA, US
Marshall Allen Beddoe - San Francisco CA, US
Pankaj Gupta - San Francisco CA, US
Bernardo de Seabra - San Francisco CA, US
Dru Nelson - San Carlos CA, US
Kenneth Cheung - San Francisco CA, US
Jason Endo - San Francisco CA, US
Max Sadrieh - San Francisco CA, US
Rahul Ravindran - San Francisco CA, US
Vikas Unnava - San Francisco CA, US
Sharon Paisner - San Francisco CA, US
Dia Kharrat - San Francisco CA, US

Assignee:

BRIGHTROLL, INC. - San Francisco CA

International Classification:

H04N 21/81
H04N 21/2668

US Classification:

725 34, 725 32, 725 35

Abstract:

A distributed computing system is configured to compute operational data for a video advertisement delivery system. Cloud-based resource are used to calculate operational parameters such as geographical data, unique advertisement delivery instances and segments of consumers that received the video advertisements.