Lin Chan He

US Patent:

7864999, Jan 4, 2011

Filed:

Oct 10, 2006

Appl. No.:

11/539985

Inventors:

Lin He - Los Angeles CA, US
Tong Fang - Morganville NJ, US

Assignee:

Siemens Medical Solutions USA, Inc. - Malvern PA

International Classification:

G06K 9/00
G06K 9/36

US Classification:

382128, 382280

Abstract:

Certain exemplary embodiments can comprise a method, which can comprise providing machine instructions adapted to render a final enhanced image of an object based upon a final enhanced set of data. The final enhanced set of data can be derived from a detected set of data obtained from an imaging device, such as a medical imaging device.

US Patent:

8275050, Sep 25, 2012

Filed:

Nov 17, 2008

Appl. No.:

12/272556

Inventors:

Lin He - Irvine CA, US
Thomas J. Kolze - Phoenix AZ, US
Gottfried Ungerboeck - Langnau a.A., CH
Bruce J. Currivan - Dove Canyon CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04N 7/12
H04N 11/02

US Classification:

37524026

Abstract:

A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.

US Patent:

8503540, Aug 6, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/620468

Inventors:

Lin He - Irvine CA, US
Thomas J. Kolze - Phoenix AZ, US
Gottfried Ungerboeck - Langnau a.A., CH
Bruce J. Currivan - Dove Canyon CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04N 7/12
H04N 11/02

US Classification:

37524026

Abstract:

A method and apparatus is disclosed to map a sequence of data to Quadrature Amplitude Modulation (QAM) constellation symbols. The method and apparatus encodes only a portion of the sequence of data and leaves a remaining portion of the sequence of data unencoded. The encoded portion of the sequence of data and the remaining unencoded portion of the sequence of data are then mapped into modulation symbols of the QAM constellation. The encoded portion of the sequence of data selects subsets of the QAM constellation, and the remaining unencoded portion of the sequence of data determines a specific modulation symbol within each subset of the QAM constellation.

US Patent:

20130279560, Oct 24, 2013

Filed:

Mar 26, 2013

Appl. No.:

13/850527

Inventors:

Loke Tan - Newport Coast CA, US
Thomas Kolze - Phoenix AZ, US
Hanli Zou - Rancho Santa CA, US
Lin He - Irvine CA, US

International Classification:

H04L 25/03

US Classification:

375233, 375232

Abstract:

An apparatus is disclosed to compensate for non-linear effects resulting from the transmitter, the receiver, and/or the communication channel in a communication system. A receiver of the communication system contains an image cancellation module that compensates for images generated during the modulation and/or demodulation process. The image cancellation module includes a fine carrier correction loop to correct for frequency offsets between the transmitter and receiver. The image cancellation module includes a coarse acquisition mode and a decision directed mode. The decision directed mode allows for a larger signal-to-noise ratio for the receiver when compared against the coarse acquisition mode.

US Patent:

20130314261, Nov 28, 2013

Filed:

Apr 22, 2013

Appl. No.:

13/867580

Inventors:

Loke TAN - Newport Coast CA, US
Bruce CURRIVAN - Los Altos CA, US
Steven JAFFE - Irvine CA, US
Thomas KOLZE - Phoenix AZ, US
Lin HE - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03M 1/06

US Classification:

341118

Abstract:

A method and apparatus is disclosed to compensate for impairments within a data converter such that its output is a more accurate representation of its input. The data converter includes a main data converter, a reference data converter, and a correction module. The main data converter may be characterized as having the impairments. As a result, the output of the main data converter is not the most accurate representation of its input. The reference data converter is designed such that the impairments are not present. The correction module estimates the impairments present within the main data converter using its output and the reference data converter to generate corrections coefficients. The correction module adjusts the output of the main data converter using the corrections coefficients to improve the performance of the data converter.

US Patent:

20140002284, Jan 2, 2014

Filed:

Jul 19, 2012

Appl. No.:

13/553017

Inventors:

Loke TAN - Newport Coast CA, US
Steven Jaffe - Irvine CA, US
Hong Liu - Irvine CA, US
Lin He - Irvine CA, US
Randall Perlow - San Clemente CA, US
Peter Cangiane - Hermosa Beach CA, US
Ramon Gomez - San Juan Capistrano CA, US
Giuseppe Cusmai - Mission Viejo CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03M 1/06

US Classification:

341118

Abstract:

Various multi-lane ADCs are disclosed that substantially compensate for impairments present within various signals that result from various impairments, such as phase offset, amplitude offset, and/or DC offset to provide some examples, such that their respective digital output samples accurately represent their respective analog inputs. Generally, the various multi-lane ADCs determine various statistical relationships, such as various correlations to provide an example, between these various signals and various known calibration signals to quantify the phase offset, amplitude offset, and/or DC offset that may be present within the various signals. The various multi-lane ADCs adjust the various signals to substantially compensate for the phase offset, amplitude offset, and/or DC offset based upon these various statistical relationships such that their respective digital output samples accurately represent their respective analog inputs.

US Patent:

20140062738, Mar 6, 2014

Filed:

Sep 5, 2012

Appl. No.:

13/604184

Inventors:

Jiangfeng WU - Irvine CA, US
Tianwei LI - Irvine CA, US
Wenbo LIU - Costa Mesa CA, US
Chun-Ying CHEN - Irvine CA, US
Lin HE - Irvine CA, US
Randall PERLOW - San Clemente CA, US
Binning CHEN - Irvine CA, US
Ramon GOMEZ - San Juan Cap CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03M 1/06

US Classification:

341118

Abstract:

Various pipeline ADCs are disclosed that substantially compensate for interference or distortion that results from imperfections with various ADC modules of the pipeline ADCs. The pipeline ADCs include various ADC stages and various compensation stages that are coupled to the various ADC stages. The various ADC stages convert their corresponding analog inputs from an analog signal domain to a digital signal domain to provide various digital output signals and various analog residual signals to subsequent ADC stages. The various compensation stages compensate for interference or distortion that is impressed onto the various analog residual signals which results from imperfections within previous ADC stages.

US Patent:

20190349227, Nov 14, 2019

Filed:

Sep 14, 2018

Appl. No.:

16/132124

Inventors:

- Singapore, SG
Loke K. Tan - Irvine CA, US
Lin He - Irvine CA, US

International Classification:

H04L 25/03
H03F 3/24
H03F 3/19
H03F 1/32
H03F 1/02
H04B 3/14

Abstract:

Systems and methods for cable transmission are provided. The system includes an up-tilt circuit, a digital-to-analog converter, and a power amplifier. The up-tilt circuit is configured to receive an input digital signal that has a flat spectrum and generate an up-tilted digital signal that has an up-tilted spectrum. The digital-to-analog converter is configured to receive the up-tilted digital signal and to provide an analog signal. The power amplifier is configured to receive the analog signal and amplify the analog signal for cable transmission.