Yong U Sun

US Patent:

20090232242, Sep 17, 2009

Filed:

Sep 29, 2008

Appl. No.:

12/241004

Inventors:

Zixiang Xiong - Spring TX, US
Yong Sun - Sugar Land TX, US
Momin Uppal - College Station TX, US
Angelos Liveris - Sugarland TX, US
Szeming Cheng - Tulsa OK, US
Vladimir Stankovic - Glasgow, GB

International Classification:

H04L 5/12

US Classification:

375265, 714792

Abstract:

A method for the Costa problem includes turbo-like nested code. In one embodiment, the method includes providing a turbo-like trellis-coded quantization for source coding. The method also includes providing a turbo trellis-coded modulation for channel coding.

US Patent:

20150078625, Mar 19, 2015

Filed:

Nov 20, 2014

Appl. No.:

14/549408

Inventors:

- Sugar land TX, US
Han Yu - Sugar Land TX, US
Remi Hutin - New Ulm TX, US
Yong Sun - Sugar Land TX, US

International Classification:

E21B 47/12
G06K 9/00

US Classification:

382109, 702 6

Abstract:

Data transmission from a bottom hole assembly (BHA) includes obtaining a scan from multiple scans forming a downhole data log of a borehole within a subterranean formation. The scan includes a sequence of data items from a sensor in the BHA located in the borehole. Each data item corresponds to an azimuth angle of the sensor. Further, compressed scan data is generated from the sequence of data items on a per-scan basis, and transmitted, using a pre-determined borehole telemetry, to a surface unit.

US Patent:

20140286538, Sep 25, 2014

Filed:

Mar 25, 2013

Appl. No.:

13/850243

Inventors:

- Sugar Land TX, US
Han Yu - Sugar Land TX, US
Remi Hutin - Bures Sur Yvette, FR
Yong Sun - Sugar Land TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 47/12
G06K 9/00

US Classification:

382109, 702 6

Abstract:

Data transmission from a bottom hole assembly (BHA) includes obtaining a scan from multiple scans forming a downhole data log of a borehole within a subterranean formation. The scan includes a sequence of data items from a sensor in the BHA located in the borehole. Each data item corresponds to an azimuth angle of the sensor. Further, compressed scan data is generated from the sequence of data items on a per-scan basis, and transmitted, using a pre-determined borehole telemetry, to a surface unit.