Luke Thomas Steigerwald

US Patent:

7139547, Nov 21, 2006

Filed:

Nov 29, 2001

Appl. No.:

09/995695

Inventors:

Myles Wakayama - Laguna Niguel CA, US
Dana Vincent Laub - Irvine CA, US
Frank Carr - Newport Beach CA, US
Afshin Mellati - Aliso Viejo CA, US
David S. P. Ho - Singapore, SG
Chun-Ying Chen - Irvine CA, US
James Y. C. Chang - Irvine CA, US
Lawrence M. Burns - Laguna Hills CA, US
Young Joon Shin - Irvine CA, US
Patrick Pai - Honolulu HI, US
Iconomos A. Koullias - Reading PA, US
Ron Lipka - Sinking Spring PA, US
Luke Thomas Steigerwald - Sinking Spring PA, US
Alexandre Kral - Laguna Niguel CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/28

US Classification:

455333, 455334, 455339, 455340, 455341

Abstract:

A direct conversion satellite tuner is fully integrated on a common substrate. The integrated tuner receives an RF signal having a plurality of channels and down-converts a selected channel directly to baseband for further processing. The integrated tuner includes on-chip local oscillator generation, tunable baseband filters, and DC Offset cancellation. The integrated tuner can be implemented in a completely differential I/Q configuration for improved electrical performance. The entire direct conversion satellite tuner can be fabricated on a single semiconductor substrate using standard CMOS processing, with minimal off-chip components. The tuner configuration described herein is not limited to processing TV signals, and can be utilized to down-convert other RF signals to an IF frequency or baseband.

US Patent:

7783275, Aug 24, 2010

Filed:

Oct 13, 2006

Appl. No.:

11/580228

Inventors:

Myles Wakayama - Laguna Niguel CA, US
Dana Vincent Laub - Irvine CA, US
Frank Carr - Newport Beach CA, US
Afshin Mellati - Aliso Viejo CA, US
David S. P. Ho - Singapore, SG
Chun-Ying Chen - Irvine CA, US
James Y. C. Chang - Irvine CA, US
Lawrence M. Burns - Laguna Hills CA, US
Young Joon Shin - Irvine CA, US
Patrick Pai - Honolulu HI, US
Iconomos A. Koullias - Reading PA, US
Ron Lipka - Sinking Spring PA, US
Luke Thomas Steigerwald - Sinking Spring PA, US
Alexandre Kral - Laguna Niguel CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/28

US Classification:

455333, 455141, 455146, 455147, 4552361, 4552521, 375316, 375345

Abstract:

A direct conversion satellite tuner is fully integrated on a common substrate. The integrated tuner receives an RF signal having a plurality of channels and down-converts a selected channel directly to baseband for further processing. The integrated tuner includes on-chip local oscillator generation, tunable baseband filters, and DC Offset cancellation. The integrated tuner can be implemented in a completely differential I/Q configuration for improved electrical performance. The entire direct conversion satellite tuner can be fabricated on a single semiconductor substrate using standard CMOS processing, with minimal off-chip components. The tuner configuration described herein is not limited to processing TV signals, and can be utilized to down-convert other RF signals to an IF frequency or baseband.

US Patent:

57855323, Jul 28, 1998

Filed:

Jul 24, 1996

Appl. No.:

8/687132

Inventors:

H. Winston Maue - Farmington Hills MI
Mohamad H. Zeiden - Dearborn MI
Luke P. Steigerwald - Manlius NY

Assignee:

United Technologies Automotive, Inc. - Dearborn MI

International Classification:

H01R 924

US Classification:

439 34

Abstract:

A power distribution box extends through a bulkhead of an automotive vehicle. This power distribution box has a first electrical connector accessible from within an engine compartment. Furthermore, a portion of the power distribution box is accessible from the passenger compartment. In another aspect of the present invention, an electricity storage device, an electricity generating device, an ignition switch, an alternator and various other engine compartment and passenger compartment accessories are electrically connected to the power distribution box.

US Patent:

61637092, Dec 19, 2000

Filed:

Jun 24, 1998

Appl. No.:

9/103899

Inventors:

Christopher M. Chorey - Newport Beach CA
Iconomos A. Koullias - Reading PA
Luke T. Steigerwald - Reading PA

Assignee:

Conexant Systems, Inc. - Newport Beach CA

International Classification:

H04Q 720

US Classification:

455550

Abstract:

A transmitter for a cellular phone comprising an antenna and being operable at a first radio frequency band and a second radio frequency band is disclosed. In one embodiment, the transmitter includes a first power amplifier and a second power amplifier. The first power amplifier has a first input for a first signal at the first radio frequency band and a first output for an amplified first signal, the first output being connected to the antenna. The second power amplifier has a second input for a second signal at the second radio frequency band and a second output for an amplified second signal, the second output being connected to the antenna. The transmitter further comprises a single control module which is associated with the first and second outputs of the power amplifiers and comprises a logarithmic detector. The control module generates a control signal which is a function of an amplified signal and a reference signal in order to control the two power amplifiers.

US Patent:

6154664, Nov 28, 2000

Filed:

Jun 24, 1998

Appl. No.:

9/103897

Inventors:

Christopher M. Chorey - Newport Beach CA
Iconomos A. Koullias - Reading PA
Luke T. Steigerwald - Reading PA

Assignee:

Conexant System, Inc. - Newport Beach CA

International Classification:

H04B 109

US Classification:

455571

Abstract:

A transmitter for a cellular phone comprising an antenna and being operable at a first radio frequency band and a second radio frequency band is disclosed. The transmitter comprises a first power amplifier and a second power amplifier, one of which is active at a time. The first power amplifier has an input for a first signal at the first radio frequency band, an input for a first control signal and a first output for an amplified first signal. The first output is connectable to the antenna. The second power amplifier has an input for a second signal at the second radio frequency band, an input for a second control signal and a second output for an amplified second signal. The second output is connectable to the antenna. The transmitter further comprises a single control module associated with the first and second outputs of the power amplifiers. The control module generates a control signal for the active power amplifier.