Shidong Chen from 140 Yellow Pne, Irvine, CA 92618, age 57

Name / Title

Company / Classification

Phones & Addresses

Shidong Chen
Director, President, Secretary, Treasurer

Iminvision Inc

2360 Corporate Cir, Henderson, NV 89074
257 E Rimini Ct, Palatine, IL 60067

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Transposed Structure For A Decision Feedback Equalizer Combined With A Trellis Decoder
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US Patent:

7376181, May 20, 2008
Filed:

Apr 4, 2003
Appl. No.:

10/407610
Inventors:

Shidong Chen - Palatine IL, US
Jilian Zhu - Palatine IL, US
Xiaojun Yang - Palatine IL, US
Assignee:

Micronas Semiconductors, Inc. - Palatine IL
International Classification:

H03K 5/159
US Classification:

375233, 375229
Abstract:

A DFE comprises a trellis decoder and a plurality of sub-filter pipelines. Each of the plurality of sub-filter pipelines is fed intermediate decoded symbols of one of the stages in a trace-back chain of a current decoding bank. The DFE output is formed by summing the plurality of sub-filter pipelines.

Apparatus For And Method Of Controlling A Digital Demodulator Coupled To An Equalizer
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US Patent:

7545888, Jun 9, 2009
Filed:

Apr 8, 2005
Appl. No.:

11/547818
Inventors:

Jilian Zhu - Schaumburg IL, US
Richard W. Citta - Oak Park IL, US
Scott M. Lopresto - Chicago IL, US
Shidong Chen - Schaumburg IL, US
Assignee:

Micronas Semiconductors, Inc. - Schaumburg IL
International Classification:

H04L 27/00
H04L 27/06
US Classification:

375326, 375324, 375341
Abstract:

A method of controlling a digital demodulator () coupled to an equalizer () includes the steps of generating an equalizer value (A), filtering () the equalizer value (A) to obtain a post filter output, subtracting the equalizer output signal (C) from the decoded data (D) and generating an error value (A). The post filter output is correlated () with the error value (A) to obtain a correlated value (A). A control signal is developed from the correlated value and is used to adjust the digital demodulator ().

Apparatus For And Method Of Controlling A Feedforward Filter Of An Equalizer
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US Patent:

7599433, Oct 6, 2009
Filed:

Apr 8, 2005
Appl. No.:

11/578132
Inventors:

Jilian Zhu - Schaumburg IL, US
Scott M. Lopresto - Chicago IL, US
David A. Willming - Palatine IL, US
Shidong Chen - Schaumburg IL, US
Gopalan Krishnamurthy - Wheeling IL, US
Assignee:

Trident Microsystems (Far East) Ltd. - Grand Cayman
International Classification:

H03H 7/30
H03K 5/159
US Classification:

375233, 375350
Abstract:

A method of controlling a feedforward filter of an equalizer includes the steps of generating a complex representation of an output of the feedforward filter and generating a representation of a decision from an output of the equalizer. The complex representation and the decision representation are correlated to obtain a phase error estimate. A phase correction value is generated based on the phase error estimate and used to adjust the phase of the output of the feedforward filter.

Digital Automatic Gain Control
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US Patent:

8401129, Mar 19, 2013
Filed:

Nov 19, 2009
Appl. No.:

12/622151
Inventors:

Honghui Xu - Buffalo Grove IL, US
Shidong Chen - Hoffman Estates IL, US
Assignee:

Techwell LLC - Milpitas CA
International Classification:

H04L 27/08
US Classification:

375345, 330129, 330254, 4552341
Abstract:

An automatic gain control (“AGC”) system. The system includes a first multiplier, an envelope detector, a summation module, a filter module, a convergence module, and a feedback module. The convergence module includes a convergence control module and a second multiplier. The feedback module includes an accumulator, a scalar multiplier module, and a third multiplier. The system is configured to adjust or modify its convergence speed according to the state of convergence of the AGC system, and the convergence speed of the AGC system is substantially independent of a signal level of the received signal.

Apparatus For And Method Of Controlling Sampling Frequency And Sampling Phase Of A Sampling Device
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US Patent:

8483317, Jul 9, 2013
Filed:

Apr 8, 2005
Appl. No.:

11/547819
Inventors:

Jilian Zhu - Schaumburg IL, US
Richard W. Citta - Oak Park IL, US
Scott M. Lopresto - Chicago IL, US
David A. Willming - Palatine IL, US
Shidong Chen - Schaumburg IL, US
Assignee:

Entropic Communications, Inc. - San Diego CA
International Classification:

H04B 1/10
US Classification:

375316, 375350, 375148
Abstract:

A method of controlling sampling frequency and sampling phase of a sampling device from a value generated by an equalizer coupled to the sampling device includes the steps of generating a complex representation of the value developed by the equalizer and generating a representation of a decision from an output of the equalizer. The complex representation and the decision representation are correlated to obtain a sampling error estimate. The sampling error estimate is used to adjust the sampling frequency and sampling phase of the sampling device.

Advanced Digital Receiver
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US Patent:

7995648, Aug 9, 2011
Filed:

Apr 8, 2005
Appl. No.:

11/547816
Inventors:

Jingsong Xia - Hawthorn Woods IL, US
Shidong Chen - Schaumburg IL, US
Richard W. Citta - Oak Park IL, US
Gopalan Krishnamurthy - Wheeling IL, US
Scott M. Lopresto - Chicago IL, US
David A. Willming - Palatine IL, US
Xiaojun Yang - Port Barrington IL, US
Jilian Zhu - Schaumburg IL, US
Assignee:

Trident Microsystems (Far East) Ltd. - Grand Cayman
International Classification:

H04B 1/10
H04L 1/00
US Classification:

375233, 375348, 375350
Abstract:

A digital receiver for processing a signal received from a channel includes a digital demodulator and an equalizer coupled to the digital demodulator. The equalizer includes a feedforward filter and a decision feedback equalizer (DFE), wherein the feedforward filter includes a plurality of feedforward filter taps. Coefficients are associated with the plurality of feedforward filter taps and the values of all of the coefficients associated with the plurality of feedforward filter taps are dynamically determined.

Synchronization Symbol Re-Insertion For A Decision Feedback Equalizer Combined With A Trellis Decoder
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US Patent:

20030214976, Nov 20, 2003
Filed:

Apr 4, 2003
Appl. No.:

10/407404
Inventors:

Shidong Chen - Palatine IL, US
Jilian Zhu - Palatine IL, US
Xiaojun Yang - Palatine IL, US
International Classification:

H04J003/06
US Classification:

370/503000, 370/537000
Abstract:

A digital equalizer for interpreting a digital signal including convolutionally encoded symbols and synchronization symbols outside the convolutional code comprises a combined trellis encoder and DFE. The synchronization symbols are re-inserted into the input of the DFE in order to restore time domain continuity created by removal of the synchronization symbols.

Systems And Methods For Remote Robotic Apparel Fitting And Shopping
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US Patent:

20170098271, Apr 6, 2017
Filed:

Oct 4, 2016
Appl. No.:

15/284723
Inventors:

Shidong Chen - Irvine CA, US
International Classification:

G06Q 30/06
Abstract:

Remote apparel fitting has long remained a problem technically and commercially since the start of online e-commerce. Various virtual fitting rooms have been disclosed in prior inventions and tried, where simulated apparel fitting results are generated from computer models. As a contrast, the present invention discloses systems and methods for remote robotic apparel fitting, shopping and showing, where the apparel fitting results are produced by a real piece of apparel worn by a body matched robotic fitting apparatus, and the apparel fitting results are captured and watched by a shopper through one's personal remote vision provided by a remote vision apparatus.