Chen C Wang

US Patent:

6882187, Apr 19, 2005

Filed:

Jul 25, 2003

Appl. No.:

10/628078

Inventors:

Hyunbae Kim - Fremont CA, US
Chen Yu Wang - San Jose CA, US
Kuang-Yu Chen - Saratoga CA, US

Assignee:

Silego Technology, Inc. - Santa Clara CA

International Classification:

H03B001/00

US Classification:

327112, 327170, 327391, 326 83, 326 87

Abstract:

A line driver and a method for driving a line are disclosed. The line driver includes a first current device configured to initiate a change in the state of the line and a second current device configured to substantially complete the change. The first current device provides a first current and the second current device provides a second current that is smaller than the first current.

US Patent:

7358772, Apr 15, 2008

Filed:

Feb 28, 2005

Appl. No.:

11/069921

Inventors:

Jie Chen - Saratoga CA, US
Ting-Yen Chiang - Palo Alto CA, US
Kuang-Yu Chen - Saratoga CA, US
Chen Yu Wang - San Jose CA, US
Joe Froniewski - Palo Alto CA, US

Assignee:

Silego Technology, Inc. - Santa Clara CA

International Classification:

H03K 19/0175

US Classification:

326 83, 326 27

Abstract:

A clock driving circuit and a method of driving a plurality of output lines for a PC architecture are disclosed. The clock driving circuit includes a clock generating circuit coupled to an output buffer for the PC having a plurality of output lines connected to a plurality of output loads having output load impedances. The output lines are driven differentially at an output voltage lower than a supply voltage. The circuit includes a voltage node having a voltage node impedance. The voltage node is maintained at substantially the output voltage. The circuit includes a current sinking transistor that sinks current from the voltage node. The current sinking transistor is operated in a linear region characterized by an ohmic resistance determined by the size of the current sinking transistor. The impedance of the voltage node is matched to one of the load impedances by sizing the current sinking transistor.

US Patent:

7612580, Nov 3, 2009

Filed:

Feb 15, 2008

Appl. No.:

12/070374

Inventors:

Jie Chen - Saratoga CA, US
Ting-Yen Chiang - Palo Alto CA, US
Kuang-Yu Chen - Saratoga CA, US
Chen Yu Wang - San Jose CA, US
Joe Froniewski - Palo Alto CA, US

Assignee:

Silego Technology, Inc. - Santa Clara CA

International Classification:

H03K 19/0175

US Classification:

326 30, 326 27

Abstract:

A clock driving circuit and a method of driving a plurality of output lines for a PC architecture are disclosed. The clock driving circuit includes a clock generating circuit coupled to an output buffer for the PC having a plurality of output lines connected to a plurality of output loads having output load impedances. The output lines are driven differentially at an output voltage lower than a supply voltage. The circuit includes a voltage node having a voltage node impedance. The voltage node is maintained at substantially the output voltage. The circuit includes a current sinking transistor that sinks current from the voltage node. The current sinking transistor is operated in a linear region characterized by an ohmic resistance determined by the size of the current sinking transistor. The impedance of the voltage node is matched to one of the load impedances by sizing the current sinking transistor.

US Patent:

7616586, Nov 10, 2009

Filed:

Apr 26, 2007

Appl. No.:

11/796335

Inventors:

Yalun Li - Fremont CA, US
Chen Wang - San Jose CA, US
Terrin Eager - Campbell CA, US

Assignee:

Airmagnet, Inc. - Sunnyvale CA

International Classification:

H04L 12/28

US Classification:

370252, 370338

Abstract:

In one exemplary embodiment, voice quality of Voice over IP data in a wireless network is measured by first receiving at a detector in the wireless network a set of wireless frames transmitted between a first wireless device and a second wireless device in the wireless network in a predetermined time period. The wireless frames in the set carry Voice over Internet Protocol data. A rating value indicative of voice quality is determined based on the loss rate and burst rate that are determined only using frames received by the detection during monitoring.

US Patent:

8126402, Feb 28, 2012

Filed:

Dec 5, 2006

Appl. No.:

11/566914

Inventors:

Ross F. Jatou - San Jose CA, US
Chen Wang - Sunnyvale CA, US

Assignee:

NVIDIA Corporation - Santa Clara CA

International Classification:

H04B 1/00

US Classification:

455 631, 455 73

Abstract:

One embodiment of the invention sets forth a technique for using a resonator as a common-mode filter for attenuating unwanted common-mode frequencies in a differential signal. Filtering these unwanted frequencies may reduce electromagnetic interference from the differential signal pair in nearby electronic devices. Since common-mode filtering is employed, the resonator reduces the unwanted common-mode noise at specific frequencies without distorting the information-carrying differential signals. Further, since the filter is implemented as a PWB resonator, the incremental cost of including this filter on the PWB is relatively small.

US Patent:

8138785, Mar 20, 2012

Filed:

Sep 18, 2009

Appl. No.:

12/586288

Inventors:

Jie Chen - Saratoga CA, US
Ting-Yen Chiang - Palo Alto CA, US
Kuang-Yu Chen - Saratoga CA, US
Chen Yu Wang - San Jose CA, US
Joe Froniewski - Palo Alto CA, US

Assignee:

Silego Technology, Inc. - Santa Clara CA

International Classification:

H03K 19/0175

US Classification:

326 30, 326 27

Abstract:

A clock driving circuit and a method of driving a plurality of output lines for a PC architecture are disclosed. The clock driving circuit includes a clock generating circuit coupled to an output buffer for the PC having a plurality of output lines connected to a plurality of output loads having output load impedances. The output lines are driven differentially at an output voltage lower than a supply voltage. The circuit includes a voltage node having a voltage node impedance. The voltage node is maintained at substantially the output voltage. The circuit includes a current sinking transistor that sinks current from the voltage node. The current sinking transistor is operated in a linear region characterized by an ohmic resistance determined by the size of the current sinking transistor. The impedance of the voltage node is matched to one of the load impedances by sizing the current sinking transistor.

US Patent:

8149729, Apr 3, 2012

Filed:

Sep 1, 2009

Appl. No.:

12/552230

Inventors:

Yalun Li - Fremont CA, US
Chen Wang - San Jose CA, US
Terrin Eager - Campbell CA, US

Assignee:

AirMagnet, Inc. - Sunnyvale CA

International Classification:

H04L 12/28

US Classification:

370252, 370338

Abstract:

In one exemplary embodiment, a process for detecting a phone includes monitoring wirelessly transmitted traffic between first and second stations. Next, the process determines whether the traffic sent in both directions between the first and second stations are close to each other in term of traffic volume. The process identifies a total frames count of a number of frames of an identical frame size transmitted, where the number of frames is greater than any number of frames of a same size. The process calculates the percentage of the count that was just collected out of the count of the total frames. The process identifies the first station as a phone if the calculated percentage is over a first threshold and the total frames count is over a second threshold.

US Patent:

20110219114, Sep 8, 2011

Filed:

Mar 4, 2011

Appl. No.:

13/040354

Inventors:

Bo Yang - Palo Alto CA, US
Evan Pedro Greenberg - Palo Alto CA, US
Chen Wang - Palo Alto CA, US

International Classification:

G06F 15/173

US Classification:

709224

Abstract:

A backend server for a peer-to-peer network manages nodes according to a pod-based management scheme. Each pod comprises a plurality of nodes and only nodes within the same pod can directly share data in the peer-to-peer network. The server dynamically allocates nodes to pods and dynamically allocates computing resources for pushing data to the pods based on characteristics of the incoming data stream and performance of the peer-to-peer sharing. By dynamically adjusting the pod structure and resources available to them based on monitored characteristics, the server can optimize performance of the peer-to-peer network.