Jin Q Lu

US Patent:

7787550, Aug 31, 2010

Filed:

Jul 24, 2007

Appl. No.:

11/782101

Inventors:

Jin Lu - Fremont CA, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04K 1/10

US Classification:

375260, 375222, 375344

Abstract:

Timing recovery circuitry for a digital subscriber line (DSL) modem, including a combined frame and timing function for adjusting frame alignment, and for adjusting sample frequency for frequency offset and for phase offset. Frame alignment is adjusted by averaging estimates of the phase offset over multiple tones within a frame, and then averaging that average estimated phase offset over multiple frames to produce a frame offset measurement. Frequency offset is derived from the constant rate of phase error variation in the received signal varies over a sequence of frames, based on which the sample frequency of the modem is adjusted. Phase offset is determined by averaging the phase offset over a plurality of tones within a frame, and integrating differences in this phase offset from frame to frame.

US Patent:

8015475, Sep 6, 2011

Filed:

Jul 26, 2007

Appl. No.:

11/828726

Inventors:

Jin Lu - Fremont CA, US
Po Tong - Los Altos CA, US
Chia-Ning Peng - Fremont CA, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H03M 13/00

US Classification:

714784, 714761, 714774, 714804

Abstract:

A system comprising communication logic capable of receiving data signals from a network. The signals comprise both erasure error and random error. The system also comprises processing logic coupled to the communication logic and adapted to partition parity check bytes of the received signals into a first portion and a second portion. The processing logic uses the first portion for random error correction and the second portion for erasure error correction.

US Patent:

8630053, Jan 14, 2014

Filed:

Feb 14, 2012

Appl. No.:

13/372600

Inventors:

Shaohua Yang - Santa Clara CA, US
Jin Lu - Lafayette CO, US
Haitao Xia - San Jose CA, US

Assignee:

LSI Corporation - San Jose CA

International Classification:

G11B 5/09

US Classification:

360 65, 360 25, 360 31

Abstract:

Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is discussed that includes: a buffer circuit, an equalizer circuit, a data processing circuit, and a retry determination circuit. The buffer is operable to store digital samples as a buffered output, and the equalizer circuit is operable to equalize the buffered output using a first equalization target to yield a first equalized output, and to yield a second equalized output using a second equalization target. The retry determination circuit is operable to select the second equalization target based at least in part on an occurrence of an error.

US Patent:

20130235920, Sep 12, 2013

Filed:

Mar 8, 2012

Appl. No.:

13/415326

Inventors:

Shaohua Yang - Santa Clara CA, US
Jin Lu - Lafayette CO, US

International Classification:

H04L 27/01

US Classification:

375229

Abstract:

The present inventions are related to systems and methods for pre-equalizer noise suppression in a data processing system. As an example, a data processing system is discussed that includes: a sample averaging circuit, a selector circuit, an equalizer circuit, and a mark detector circuit. The sample averaging circuit is operable to average corresponding data samples from at least a first read of a codeword and a second read of the codeword to yield an averaged output based at least in part on a framing signal. The selector circuit is operable to select one of the averaged output and the first read of the codeword as a selected output. The equalizer circuit is operable to equalize the selected output to yield an equalized output, and the mark detector circuit is operable to identify a location mark in the equalized output to yield the framing signal.

US Patent:

20170337274, Nov 23, 2017

Filed:

May 17, 2016

Appl. No.:

15/156567

Inventors:

- Mountain View CA, US
Ahmet Onur Tekdas - Santa Clara CA, US
Timo Mertens - Millbrae CA, US
Okan Kolak - Sunnyvale CA, US
Charles Randell Sievert - San Jose CA, US
Christine Nguyen - Santa Clara CA, US
Jin Lu - Redwood City CA, US

International Classification:

G06F 17/30
H04M 1/725
H04M 1/27
H04W 4/14

Abstract:

The disclosed embodiments include computerized methods, systems, and devices, including computer programs encoded on a computer storage medium, for generating terms of a search query based on a user's spoken utterances, identifying multiple cross-platform messages based on the generated terms, and to generating, via a presentation device, a single interface that enables the user to interact with identified messages. Based on a spoken utterance, the disclosed embodiments may determine user-specified search terms and/or criteria, and based on the user-specified search terms and/or criteria, may obtain cross-platform message data that corresponds to the search query. The communications device may generate one or more interface elements that describe corresponding ones of the cross-platform messages, which may be presented within a unified graphical user interface or voice-user interface by a communications device.

US Patent:

20150227543, Aug 13, 2015

Filed:

Feb 11, 2014

Appl. No.:

14/177899

Inventors:

- Mountain View CA, US
Toby Jonathon Coleridge - San Mateo CA, US
Pu Paul Zhang - San Jose CA, US
Vikram Auradkar - Los Altos CA, US
Seshan Parameswaran - Sunnyvale CA, US
Kartikeya Iyer - Campbell CA, US
Qian Zhang - Sunnyvale CA, US
Jin Lu - Sunnyvale CA, US

Assignee:

Atlantis Computing, Inc. - Mountain View CA

International Classification:

G06F 17/30
G06F 9/455

Abstract:

A method and apparatus for rapid replication of deduplicated file system data is described. The method may include initiating replication of a file from a source deduplication system to a destination deduplication system, and transferring deduplication metadata for each block of the file from the source deduplication system to the destination deduplication system. The method may also include transferring an identifier file from the source deduplication system to the destination deduplication system that includes a block number corresponding to a block of the file and a unique identifier value generated from the block of the file. The method may also include receiving a data request file from the destination deduplication system, and transferring the blocks of data identified in the data request file to complete replication of the file on the destination deduplication system.