Ning Su Li

US Patent:

6686772, Feb 3, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/084365

Inventors:

Ning Li - Fremont CA
Jiann-Chyi (Sam) Shieh - San Jose CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03K 190175

US Classification:

326 83, 326115

Abstract:

A differential driver includes a switching module and first and second voltage controlled voltage sources. The switching module has a plurality of switches each controlled by an input signal, a first voltage input and a second voltage input, and a signal output. The first voltage controlled voltage source is connected to the first voltage input. The first voltage controlled voltage source has a low impedance. The second voltage controlled voltage source is connected to the second voltage input. The second voltage controlled voltage source also has a low impedance. The switching circuit outputs an output signal having an output voltage and current controlled by the first and second voltage controlled voltage sources. The output signal is based upon the input signal.

US Patent:

6788142, Sep 7, 2004

Filed:

Mar 20, 2002

Appl. No.:

10/101056

Inventors:

Ning Li - Fremont CA
Jiann-Chyi Shieh - San Jose CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03F 345

US Classification:

330253, 330258

Abstract:

A wide input range amplifier includes a first and second stage. The first stage has first and second inputs, first and second outputs, and first, second and third voltage sources. The first stage accepts input signals having a first common mode voltage range and outputs a first output signal having a second common mode voltage range and being amplified a first amount. The second stage has first and second inputs connected to the first and second outputs of the first stage, respectively. The second stage accepts input signals having a common mode voltage in the second range and outputs a second output signal having a third common mode voltage range and being amplified a second amount.

US Patent:

6867618, Mar 15, 2005

Filed:

Dec 30, 2003

Appl. No.:

10/747310

Inventors:

Ning Li - Fremont CA, US
Jiann-Chyi (Sam) Shieh - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03K019/0175

US Classification:

326 83, 326115

Abstract:

A differential driver includes a switching module and first and second voltage controlled voltage sources. The switching module has a plurality of switches each controlled by an input signal, a first voltage input and a second voltage input, and a signal output. The first voltage controlled voltage source is connected to the first voltage input. The first voltage controlled voltage source has a low impedance. The second voltage controlled voltage source is connected to the second voltage input. The second voltage controlled voltage source also has a low impedance. The switching circuit outputs an output signal having an output voltage and current controlled by the first and second voltage controlled voltage sources. The output signal is based upon the input signal.

US Patent:

6956436, Oct 18, 2005

Filed:

Mar 19, 2004

Appl. No.:

10/804169

Inventors:

Ning Li - Fremont CA, US
Jiann-Chyi Sam Shieh - San Jose CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03F003/45

US Classification:

330258, 330310

Abstract:

A wide input range amplifier includes a first and second stage. The first stage has first and second inputs, first and second outputs, and first, second and third voltage sources. The first stage accepts input signals having a first common mode voltage range and outputs a first output signal having a second common mode voltage range and being amplified a first amount. The second stage has first and second inputs connected to the first and second outputs of the first stage, respectively. The second stage accepts input signals having a common mode voltage in the second range and outputs a second output signal having a third common mode voltage range and being amplified a second amount.

US Patent:

7013311, Mar 14, 2006

Filed:

Sep 5, 2003

Appl. No.:

10/655126

Inventors:

Joshua Wai-ho Hui - San Jose CA, US
Ning Li - San Jose CA, US
Hui-I Hsiao - Saratoga CA, US
Parag V. Tijare - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 17/30

US Classification:

7071041, 707101, 707102

Abstract:

A system and method are provided for XML query cursor implementation through the steps of query translation and processing, query result navigation, and positioned update. An XML query cursor implemented in Interface Definition Language (IDL) as well as an extension to XQuery, an XML query language, is described. These steps are addressed by one of three approaches: multi-cursor, outer union, or hybrid. In each approach, XML data is assumed to be stored in a relational database with a mapping that maps each element to a row in a relational database table. In each approach, a system and method provide for cursor movements and positioned updates in increments of a node, sub-tree, or entire document. Given a user's navigation patterns, a system and method is provided to select either a multi-cursor, outer union, or hybrid approach as an optimal implementation for an XML query cursor.

US Patent:

7161401, Jan 9, 2007

Filed:

Feb 27, 2004

Appl. No.:

10/787954

Inventors:

Ning Li - Fremont CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03L 7/06

US Classification:

327157

Abstract:

A charge pump circuit includes a charge pump having an output voltage. A replica circuit actively matches up and down currents in the charge pump. A charge pump bias current transistor biases the charge pump. The charge pump includes four switches driven by differential UP and DOWN signals. The charge pump includes a first tail current source connected between a supply voltage and two of the four switches that are driven by the differential UP signal, and a second tail current source connected between a supply voltage and two of the four switches that are driven by the differential DOWN signal. The charge pump includes an operational amplifier whose output is connected to an output of one of the tail current sources. A dump capacitor is connected to a negative input of the operational amplifier. The replica circuit includes four transistors, two of which match the first and second tail current sources, and the other two match the switches driven by the differential UP and DOWN signals.

US Patent:

7259956, Aug 21, 2007

Filed:

Dec 17, 2004

Appl. No.:

11/013789

Inventors:

Victor Chiu-Kit Fong - San Jose CA, US
Eric Bruce Blecker - San Jose CA, US
Tom W. Kwan - Cupertino CA, US
Ning Li - Fremont CA, US
Sumant Ranganathan - Sunnyvale CA, US
Chao Tang - Mountain View CA, US
Pieter Vorenkamp - Laguna Niguel CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01G 4/228

US Classification:

3613062, 3613061, 3613011, 3613212, 361303, 361311, 361313

Abstract:

The present invention provides several scalable integrated circuit high density capacitors and their layout techniques. The capacitors are scaled, for example, by varying the number of metal layers and/or the area of the metal layers used to from the capacitors. The capacitors use different metallization patterns to form the metal layers, and different via patterns to couple adjacent metal layers. In embodiments, optional shields are included as the top-most and/or bottom-most layers of the capacitors, and/or as side shields, to reduce unwanted parasitic capacitance.

US Patent:

7370273, May 6, 2008

Filed:

Jun 30, 2004

Appl. No.:

10/710288

Inventors:

Kevin S Beyer - San Jose CA, US
Hui-I Hsiao - Saratoga CA, US
Joshua Wai-Ho Hui - San Jose CA, US
Ning Li - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 15/00

US Classification:

715514

Abstract:

A dynamic foldering system automatically manages the creation and deletion of run-time dynamic folders and selection of documents, items, or object graphs found in the run-time dynamic folders. The system comprises a query/predicate for a design-time folder group based on which dynamic folders are automatically managed, a variable binding mechanism, automatic identifications of dynamic folders containing a particular object, parallel navigation, and customized combination of foldering results. The dynamic folder hierarchy is defined by a hierarchy of design-time folder groups defined by a query/predicate on a document comprising structured or semi-structured data. Modifiable criteria for creating the dynamic folder hierarchy are provided by the user. Variable binding provides powerful query/predicate definitions on hierarchical data or graph-structured data. Given a document, the system automatically identifies which dynamic folders contain the document.