Jason B Goldberg

US Patent:

7769076, Aug 3, 2010

Filed:

Jan 15, 2008

Appl. No.:

12/014371

Inventors:

Jason Goldberg - Menlo Park CA, US
Charles Abraham - Los Gatos CA, US
Emre Tapucu - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/707

US Classification:

375142

Abstract:

A method and apparatus for performing frequency analysis of sub-epoch correlations to estimate an unknown frequency of a received signal is provided. The method includes forming a sequence of correlation values from a plurality of correlations performed over a period less than a repeating period of a code, and analyzing the sequence of correlation values to estimate the frequency that is used to receive a signal comprising the code.

US Patent:

8022866, Sep 20, 2011

Filed:

Oct 16, 2008

Appl. No.:

12/252982

Inventors:

Jason Goldberg - Menlo Park CA, US
Charles Abraham - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G01S 19/52

US Classification:

34235735

Abstract:

Aspects of a method and system for Doppler estimation may include generating, in a GNSS receiver operating in a duty-cycle mode, a plurality of lag-m products that may be based on a plurality of correlation coefficients corresponding to one or more received signals, wherein the plurality of correlation coefficients may be generated during an active period of the duty-cycle mode of operation. A Doppler frequency may be estimated based on the plurality of lag-m products. The GNSS receiver may be compliant with one or more standards comprising GALILEO, GLONASS, IRNSS, and BEIDOU. The active period of the duty-cycle mode may be chosen arbitrarily from a range of 1% to 99%.

US Patent:

8098716, Jan 17, 2012

Filed:

Jan 15, 2008

Appl. No.:

12/014410

Inventors:

Jason Goldberg - Menlo Park CA, US
Charles Abraham - Los Gatos CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04B 1/707

US Classification:

375150

Abstract:

A method and apparatus for tracking a signal comprises correlating a digital signal with a code using a hypothesis at a plurality of frequencies and at least one delay to produce correlation results, measuring an energy value of the correlation results, adjusting at least one of the frequency or delay in response to the measured energy value to form the hypothesis.

US Patent:

8315128, Nov 20, 2012

Filed:

Jan 9, 2012

Appl. No.:

13/346102

Inventors:

Ross S. Wilson - Menlo Park CA, US
Jason S. Goldberg - Saint Paul MN, US

Assignee:

LSI Corporation - Milpitas CA

International Classification:

G11B 11/00

US Classification:

369 1302, 369 4728, 369 5919

Abstract:

Various embodiments of the present invention provide apparatuses, systems and methods for heat assisted magnetic recording. For example, an apparatus is disclosed that includes a signal generator operable to generate laser trigger pulses at the transition rate of the magnetic write data signal, a variable delay element operable to control an alignment between the laser pulse control signal and the magnetic write data signal, a phase difference detector operable to control the variable delay element, a triggerable pulse generator circuit operable to generate a laser pulse control signal based on the laser trigger pulses, a magnetic write head operable to record data to a magnetic storage medium under control of the magnetic write data signal, and a laser diode operable to heat the magnetic storage medium under control of the laser pulse control signal.

US Patent:

8395544, Mar 12, 2013

Filed:

Oct 12, 2010

Appl. No.:

12/902314

Inventors:

Jason Goldberg - Menlo Park CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G01S 19/22
H04B 1/10

US Classification:

34235761, 375148, 7014785

Abstract:

A GNSS enabled communication device receives GNSS signals from GNSS satellites. The resulting GNSS baseband signals may be concurrently correlated with GNSS acquisition codes. Inter-delay products for the received GNSS signals may be generated utilizing the correlation IQ samples. The inter-delay products are utilized to calculate either an open loop or a close-loop estimate for inter-delay phase coherence of the received GNSS signals. A test statistic, generated from the inter-delay products, may be compared with a preset or dynamically determined threshold value in order to detect or declare signal degradation effects in the received GNSS signals. The early and late delays for the inter-delay phase coherence may be generalized to two or more delays. In this regard, the correlation IQ samples may be utilized to generate a correlation matrix. Variations derived from the correlation matrix may be utilized to declare or detect signal degradation effects in the received GNSS signals.

US Patent:

8472503, Jun 25, 2013

Filed:

Jul 2, 2010

Appl. No.:

12/829522

Inventors:

Jason Goldberg - Menlo Park CA, US
Charles Abraham - Los Gatos CA, US
Emre Tapucu - San Jose CA, US

Assignee:

Global Locate, Inc. - Irvine CA

International Classification:

H04B 1/707

US Classification:

375142

Abstract:

A method and apparatus for performing frequency analysis of sub-epoch correlations to estimate an unknown frequency of a received signal is provided. The method includes forming a sequence of correlation values from a plurality of correlations performed over a period less than a repeating period of a code, and analyzing the sequence of correlation values to estimate the frequency that is used to receive a signal comprising the code.

US Patent:

20150302887, Oct 22, 2015

Filed:

Apr 23, 2014

Appl. No.:

14/259388

Inventors:

- San Jose CA, US
Ross S. Wilson - Menlo Park CA, US
David W. Kelly - Eagan MN, US
Jason S. Goldberg - Saint Paul MN, US

Assignee:

LSI Corporation - San Jose CA

International Classification:

G11B 20/10

Abstract:

An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.