John F Leung

US Patent:

20120004005, Jan 5, 2012

Filed:

Aug 9, 2010

Appl. No.:

12/853131

Inventors:

Walid Ahmed - Tinton Falls NJ, US
John Leung - Irvine CA, US
Theodoros Georgantas - Chaidari, GR
Morten Damgaard - Laguna Hills CA, US
Nelson Sollenberger - Farmingdale NJ, US

International Classification:

H04B 7/00

US Classification:

455522

Abstract:

Aspects of a method and system for integrated blocker detection and automatic gain control are provided. In this regard, a communication device may generate one or more first signal strength indications based on a strength of a received signal at a first point in the analog front-end of the communication device. The communication device may generate one or more second signal strength indications based on a strength of the received signal at a second point in a digital processing module of the communication device. The first point in the analog front-end may be an input or an output of a down-conversion mixer. The second point in the digital processing module may be an output of an analog-to-digital converter or an output of a channel selection filter. The communication device may control, utilizing the first signal strength indication(s) and the second signal strength indication(s), a gain of one or more components of the communication device.

US Patent:

48496006, Jul 18, 1989

Filed:

Aug 22, 1988

Appl. No.:

7/234971

Inventors:

Roman Herschitz - Plainsboro NJ
Scott T. Demarest - Lawrenceville Township, Mercer County NJ
Stephen H. Chu - Middletown Township, Monmouth County NJ
John G. Leung - East Windsor NJ

Assignee:

General Electric Company - East Windsor NJ

International Classification:

B23K 1124

US Classification:

219110

Abstract:

A method for welding two pieces includes juxtaposing the pieces and monitoring the temperature of the region to be welded. Energy is applied at a time rate sufficient to raise the temperature of the region to be welded at a rate exceeding a predetermined value. Once a predetermined temperature is reached, that temperature is held for a predetermined time. The rate of rise of temperature is 70% of the final or predetermined temperature in 20% of the predetermined time. After the weld is made, the rate of fall of the temperature exceeds a predetermined value. Quenching may be used to achieve the desired rate of fall.