Mark E Lane

US Patent:

6366622, Apr 2, 2002

Filed:

May 4, 1999

Appl. No.:

09/305330

Inventors:

Stephen Joseph Brown - San Diego CA
Andrew Xavier Estrada - San Diego CA
Terrance R. Bourk - La Jolla CA
Steven R. Norsworthy - Solana Beach CA
Patrick J. Murphy - San Diego CA
Christopher Dennis Hull - San Diego CA
Glenn Chang - Laguna Niguel CA
Mark Vernon Lane - San Diego CA
Jorge A. Grilo - Foothill Ranch CA

Assignee:

Silicon Wave, Inc. - San Diego CA

International Classification:

H04B 130

US Classification:

375322, 375133, 375222, 375281, 375345, 329304

Abstract:

An apparatus for receiving signals includes a low noise amplifier (LNA) configured to receive a radio frequency (RF) signal. An I/Q direct down converter is coupled to the LNA. The I/Q direct down converter is configured to split the RF signal into real and imaginary components and to down convert the real and imaginary components directly to baseband signals. A local oscillator (LO) is coupled to the I/Q direct down converter and is configured to drive the I/Q direct down converter. First and second filters are coupled to the I/Q direct down converter. The first and second filters are configured to filter the down converted real and imaginary components, respectively. First and second analog-to-digital converters (ADCs) are coupled to the first and second filters, respectively. The first and second ADCs are configured to convert the real and imaginary components into digital signals. The first and second ADCs have a dynamic range that is wide enough to convert the filtered, down converted real and imaginary components to digital signals without using variable gain on the filtered and down converted real and imaginary components.

US Patent:

6868128, Mar 15, 2005

Filed:

Jul 5, 2000

Appl. No.:

09/610555

Inventors:

Mark V. Lane - San Diego CA, US

Assignee:

RFMD WPAN, Inc. - San Diego CA

International Classification:

H04L025/06

US Classification:

375319, 455324

Abstract:

A novel method and apparatus for calibrating DC offsets in a direct conversion receiver. The present DC offset calibration method and apparatus comprises a direct conversion receiver equipped with a frequency shifter means and a DC offset measurement and correction technique. In accordance with the present invention, DC offsets are calibrated in direct conversion receivers through an inventive method including two steps: a DC offset measurement step and a DC offset correction step. In the DC offset measurement step the frequency of a local oscillation signal (typically generated by a voltage-controlled oscillator (VCO)) is shifted by a selected frequency shift value during the inactive time intervals of the receiver. DC offsets are measured while the frequency of the down-conversion oscillation signal is shifted by the frequency shift value. Before the inactive time interval expires, the frequency of the down-conversion oscillator signal is shifted back to its original value.

US Patent:

6978121, Dec 20, 2005

Filed:

Nov 5, 2002

Appl. No.:

10/288209

Inventors:

Mark Lane - San Diego CA, US
Terrance Raymond Bourk - La Jolla CA, US
Glenn Murphy - San Diego CA, US
David Akira Yamasaki - San Diego CA, US

Assignee:

RFMD WPAN, INC - San Diego CA

International Classification:

H04B001/38

US Classification:

455 73, 455103, 4555521

Abstract:

The present invention is a method and apparatus for operating a dual-mode radio (DMR) in a wireless communication system. The present invention provides “coexistence” or cooperation of Bluetooth™ and 802. 11 devices operating in close proximity to each other within a DMR. The present inventive method and apparatus reduces reception errors and prevents saturation of the Bluetooth™ devices caused by 802. 11 transmissions. The present inventive antenna switching method provides a means for coupling multiple antennas to Bluetooth™ and 802. 11 transmit and receive devices. Saturation of the Bluetooth™ receive devices is prevented by electrically isolating the Bluetooth™ receive devices from antennas used by the 802. 11 device during 802. 11 transmissions.

US Patent:

7027796, Apr 11, 2006

Filed:

Jun 22, 2001

Appl. No.:

09/888108

Inventors:

Joel B. Linsky - San Diego CA, US
Lars G. Jansson - Bethel ME, US
Mark V. Lane - San Diego CA, US

Assignee:

RFMD WPAN, Inc. - San Diego CA

International Classification:

H04B 1/16

US Classification:

4553431, 4553432, 4553435

Abstract:

A frequency synthesizer device with a fast off-to-lock time to enable intermittent operation and achieve power savings through automatic control of its On/Off sequence. A relatively fast off-to-lock time is achieved by controlling the sequence of how various components of the synthesizer are reactivated. The voltage controlled oscillator is reactivated, at first operating at its previous operating frequency prior to being deactivated. The phase frequency detector is inhibited while its input signals, a reference signal and a feedback signal, are activated. In a channel hopping communication scheme, the phase frequency detector coarsely tunes the synthesizer to its previous operating frequency, and then jumps to its new operating frequency. Another aspect of the invention provides improved channel locking by guaranteeing that the phase of the feedback signal in a phase lock loop initially lags the phase of the reference frequency signal at the phase frequency detector.

US Patent:

8594056, Nov 26, 2013

Filed:

Jun 14, 2010

Appl. No.:

12/815342

Inventors:

Roland R. Rick - San Diego CA, US
Michael Kohlmann - San Diego CA, US
Mark Vernon Lane - San Diego CA, US
Joel Benjamin Linsky - San Diego CA, US
Vincent Knowles Jones - San Diego CA, US
Alireza Raissinia - San Diego CA, US
Gopal Chillariga - San Diego CA, US
Eric Y. Tsou - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04J 3/00

US Classification:

370336, 455 412, 4554221

Abstract:

An apparatus and method are disclosed for effectively and efficiently arbitrating concurrent usage between WLAN and Bluetooth access technologies for co-located wireless devices. A state level arbiter determines state and relevant parameters of a WLAN module and of a Bluetooth module of a wireless transceiver unit. The state level arbiter uses the state and relevant parameters to determine which access technology (WLAN or Bluetooth) or combination of the access technologies (WLAN or Bluetooth) will provide the best concurrent performance for wireless transmissions at a given time for specific Bluetooth states and WLAN states.

US Patent:

8044734, Oct 25, 2011

Filed:

Aug 1, 2008

Appl. No.:

12/184728

Inventors:

Mark Vernon Lane - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H03B 5/20

US Classification:

331135, 331 16, 331137, 331182, 455 75, 455 85, 455 86

Abstract:

Techniques for mitigating VCO pulling are described. In an aspect, VCO pulling may be mitigated by (i) injecting an oscillator signal, which is a version of a VCO signal from a VCO, into a transmitter and (ii) using coupling paths from the transmitter to the VCO to re-circulate the oscillator signal back to the VCO. In one design, an apparatus includes a VCO and a coupling circuit. The VCO generates a VCO signal at N times a desired output frequency. The coupling circuit receives an oscillator signal generated based on the VCO signal and injects the oscillator signal into a transmitter to mitigate pulling of the frequency of the VCO due to undesired coupling from the transmitter to the VCO. The apparatus may include a phase adjustment circuit that adjusts the phase of the oscillator signal and/or an amplitude adjustment circuit that adjusts the amplitude of the oscillator signal.

US Patent:

20100093279, Apr 15, 2010

Filed:

Oct 14, 2008

Appl. No.:

12/251356

Inventors:

Joel Benjamin Linsky - San Diego CA, US
Gene Fong - San Diego CA, US
Faramarz Sabouri - San Diego CA, US
Eugene Yang - San Diego CA, US
Desong Zhao - San Diego CA, US
Mark Lane - San Diego CA, US
Thomas P. Cargill - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04B 7/00

US Classification:

455 412

Abstract:

An electronic device for communication comprises a processor. The processor comprises a power scan module configured to receive an energy detection signal identifying detection of energy of a page signal or an inquiry signal. The power scan module is further configured to provide, upon receiving the energy detection signal, an instruction to perform a page scan or an inquiry scan.

US Patent:

20110249603, Oct 13, 2011

Filed:

Jun 14, 2010

Appl. No.:

12/815347

Inventors:

Roland R. Rick - San Diego CA, US
Michael Kohlmann - San Diego CA, US
Mark Vernon Lane - San Diego CA, US
Joel Benjamin Linsky - San Diego CA, US
Vincent Knowles Jones - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

G08C 17/00

US Classification:

370311

Abstract:

An apparatus and method for multiple wireless service coexistence comprising: engaging a first switch to connect a first service transmitter to an antenna through a first filter path and to disconnect a first service receiver from the antenna; engaging a second switch to connect a second service receiver to the antenna through a second filter path and to disconnect a second service transmitter from the antenna; enabling transmit power control on the first service transmitter; and performing one or both of the following: a) transmitting a first service transmit signal through the first filter path to the antenna with high rejection of the band of a second service; b) receiving a second service receive signal through the second filter path from the antenna with high rejection of the band of a first service.