Zhenyu L Liu, 668234 Moller Ranch Dr, Pleasanton, CA 94588

8051363, Nov 1, 2011

Jan 16, 2008

12/015159

Zhenyu Liu - Sunnyvale CA, US

Marvell International Ltd. - Hamilton

H03M 13/45

714780, 714759, 714760

Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.

8381069, Feb 19, 2013

Oct 7, 2011

13/269446

Zhenyu Liu - Sunnyvale CA, US

Marvell International Ltd. - Hamilton

H03M 13/05

714759, 714760

Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.

8495462, Jul 23, 2013

Jan 10, 2013

13/738325

- Hamilton, BM
Zhenyu Liu - Sunnyvale CA, US

Marvell International Ltd. - Hamilton

H03M 13/11

714759, 714785

Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10 GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.

2002019, Dec 19, 2002

May 30, 2001

09/871487

Zhenyu Liu - Pleasanton CA, US
Lang Chen - Fremont CA, US

H04M001/64

379/088010

A voice activation system for a home or office computer allows a user at a remote location to telephone the computer. A modem or other voice hardware for the computer provides a voice signal from the user to a voice activation system that analyzes the voice signal. When the voice activation system recognizes spoken commands in the voice signal, the voice activation system activates procedures according to the spoken command. One procedure in a system that uses the analog voice signal on a telephone line for voice and data hangs up on the user, contacts a dial-up service, downloads voice or e-mail messages from the dial up service, and the calls the user back. Another procedure accesses data such as a telephone number list stored in the computer and converts the data into a voice signal sent to the user at the remote location. With this system, the user can remotely access a computer and retrieve e-mail, voice mail, telephone numbers, and other information without special hardware such as a portable computer and can conduct the remote access without the need for hand touch.

2003010, May 29, 2003

Oct 5, 2001

09/972308

Lang Chen - Fremont CA, US
Michael Yeung - Fremont CA, US
Zhenyu Liu - Pleasanton CA, US

G10L019/12

704/223000

Voice processing methods and circuits use bandpass filters and energy detectors to determine the energy in frequency channels of a voice signal. A bit array having a horizontal direction corresponding to the channels and a vertical direction corresponding to time provides a representation of the voice signal that can be stored during training and compared to other bit arrays during voice recognition. One comparison method compares horizontal lines of bit arrays using a position-weighted K factor. A segmentation process divides arrays into segments to better identify corresponding lines in arrays. Corresponding lines can also be selected in segments using an alternating top-down/bottom-up best match process. When this comparison finds a matching array, the match is confirmed if match result is significantly better than a match result for a bit array corresponding to different voice command and if vertical checking confirms the match. Thresholds indicating horizontal and vertical matching arrays and the required gap between the match results of different commands can be set according to the desired voice recognition sensitivity.

2006009, May 11, 2006

Nov 5, 2004

10/982439

Zhenyu Lawrence Liu - Pleasanton CA, US
Xin Chen - Pleasanton CA, US
Lang Shie Chen - Fremont CA, US

G09B 3/00

434350000, 434362000

A teaching system provides explanatory materials, examples, and problems on an interactive basis and adapts to the student. The system can generate random questions for presentation to the student as multi-step examples or practice problems. The student's answers during each step of a multi-step practice problem can be evaluated to identify weaknesses. Identified weaknesses can be remedied by presenting additional explanations, providing additional practice problems, and revisiting the weaknesses by inserting practice problems of the identified type into the student's subsequent lessons. The system can also adapt adjusting the speed or number of steps presented according to the student's performance. The system can further provide detailed analysis or diagnosis of the student's performance that can be communicated to teachers and/or parents for use in other teaching environments. The teaching system when embodied in a web site further provides communication among students, teachers, and parents.

2011028, Nov 24, 2011

May 20, 2010

12/784491

Deepak Chandra - Mountain View CA, US
Zhenyu Liu - San Jose CA, US

GOOGLE INC. - Mountain View CA

G06F 15/16
G06Q 30/00

705 1473, 709217, 705 2661

This specification describes technologies relating to content presentation. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a request to serve a content item to an application on a mobile device; identifying a context associated with the application, the context being derived from an application description page for the application and one or more pages linking to the application description page, the context comprising one or more keywords associated with the application; selecting a content item, from a collection of content items, using the context; and serving the selected content item to the application on the mobile device. Other embodiments of this aspect include corresponding systems, apparatus, and computer program products.

RE35901, Sep 22, 1998

Feb 20, 1996

8/603167

Dennis E. Wilkison - San Jose CA
Zhenyu Lawrence Liu - San Jose CA

Cermetek Microelectronics, Inc. - Sunnyvale CA

H04M 900
H02H 322

379406

An improved solid state isolation device that uses opto-isolators to provide an electrical barrier between a telephone network and user telephone equipment includes a load and current control circuit, and an adjustable termination circuit to eliminate or reduce signal distortion and insensitivity to low signal levels resulting from low loop current, and lack of complex impedance compensation/termination for diverse telephone system parameters. An improved trans-hybrid return loss circuit reduces internal losses; while loop termination losses are reduced by the use of Shottky diodes in the line coupler circuit. A high pass filter improves common mode rejection ratios in the transmit and receive paths, and adjustable compensation is provided to account for manufacturing variances in the opto-isolators. An additional connection is also provided to adapt the opto-isolator circuit for use with 3-wire ring circuitry.