Jin Bok Chung

US Patent:

20180249221, Aug 30, 2018

Filed:

Apr 23, 2018

Appl. No.:

15/959748

Inventors:

- El Segundo CA, US
Sri Hari Swaroop Nidichenametla - Torrance CA, US
Jin H. Chung - Fullerton CA, US
Fred Grigoryan - Burbank CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

H04N 21/482

Abstract:

A system and method for accessing past program guide data includes a program guide repository storing past program guide data and a controller receiving a request for past program guide data and communicating the past program guide data to a user device located separated from the controller.

US Patent:

20140159116, Jun 12, 2014

Filed:

Nov 20, 2013

Appl. No.:

14/085037

Inventors:

- El Segundo CA, US
Jin Wook Chung - Los Angeles CA, US

Assignee:

International Rectifier Corporation - El Segundo CA

International Classification:

H01L 29/778

US Classification:

257194

Abstract:

In an exemplary implementation, a semiconductor device includes a III-nitride heterojunction including a III-nitride barrier layer situated over a III-nitride channel layer to form a conduction channel including a two-dimensional electron gas. The semiconductor device further includes a gate electrode coupled to a field plate. The field plate includes a plurality of steps insulated from the conduction channel by a dielectric body and the III-nitride barrier layer. The dielectric body under each one of the plurality of steps contributes to a breakdown voltage that is at least twice a breakdown voltage of the semiconductor device at each corresponding step. The breakdown voltage can correspond to a breakdown voltage of the dielectric body and the III-nitride barrier layer.