David Wang

6374404, Apr 16, 2002

Dec 16, 1998

09/216668

Mario Udo Brotz - Mountain View CA
David S. Wang - Fremont CA

Sony Corporation of Japan - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

H04N 5445

725 46, 725 37, 725 40, 725136, 725112

A client-side intelligent device having background caching of web pages within a digital television (DTV) system and method of same. The present invention includes a digital television system having an intelligent device for interfacing with a user/viewer and controlling the display of information on a display screen. The intelligent device, in one embodiment, is a set-top-box, but could be any intelligent electronic device or computer system. The set-top-box is configured to receive a DTV signal (e. g. , land based cable or digital satellite system) that includes audio/visual information as well as data signals in a datacast format. The datacast format includes web pages, e. g. , in the HTML (hypertext markup language) format of the world wide web. The DTV broadcasters support multiple channels of information on which content providers can supply a domain of web pages on a periodic basis. The present invention is able to display viewer-selected web pages on the DTV system.

6429734, Aug 6, 2002

Dec 19, 2001

10/024789

David Y. Wang - San Jose CA
Jyn-Bang Shyu - Cupertino CA

Neoaxiom Corporation - San Jose CA

H03F 345

327558, 327552, 327156, 330258

A loop filter circuit in a phase lock loop, which also includes a phase detector, a charge pump, and a voltage controlled oscillator (VCO). The loop filter circuit is comprised of two active filters and a common mode feedback control differential comparator (CMFCDC). The active filters process differential signals from the charge pump and output a pair of differential signals to the VCO. The CMFCDC provides a common mode feedback path to both active filters. The loop filter circuit eliminates common mode noise introduced by power supply and ground, and reduces phase jitter in the overall PLL circuits. Each of the active filters is comprised of two independent sets of passive elements that dictate the values of natural modes (poles) and transmission zeros (zeros) of the filtering modules. This allows PLL designers wider latitude in adjusting the unity gain bandwidth of the active loop filter, which contributes to a more stable and better performing PLL circuit.

6442593, Aug 27, 2002

Feb 1, 1999

09/241201

David Shan-Ming Wang - Fremont CA
P. Robert Hsu - San Jose CA

Sony Corporation - Tokyo
Sony Electronics Inc. - Park Ridge NJ

G06F 1516

709206, 709207

A system allows users to send electronic mail messages having prioritized delivery. A server receives an electronic mail message that contains a specified priority or a specified time frame for delivery. The server determines a time frame for delivery and selects procedures to ensure delivery of the electronic mail message within the determined time frame. The server then provides the electronic mail message to the receiving account within the determined time frame.

6531905, Mar 11, 2003

Dec 19, 2001

10/024816

David Y. Wang - San Jose CA

Neoaxiom Corporation - San Jose CA

H03K 3037

327218

A flip-flop circuit with metastability reduction having two internal flip-flops connected in a parallel configuration relative to an input line with a input data delay connected to the data input of one of the flip-flops. The outputs are combined and since at least one of the flip-flop outputs should be stable, if the output of one of the flip-flop goes into a metastable state, the output of the other flip-flop will stabilize it, thus producing a stable output.

D475054, May 27, 2003

May 31, 2001

29/142733

Bradley Blackwood - San Jose CA
Nicholas Denhez - San Francisco CA
Daniel Philip Groebe - Lake Zurich IL
Amy A. Han - Palo Alto CA
Troy Hulick - Saratoga CA
Andrea Johnson - Los Altos CA
Lawrence Lam - San Jose CA
Philip S. McClendon - Cupertino CA
Steven Shiozaki - Belmont CA
David Wang - Sunnyvale CA
Sylvia Weiser - San Jose CA

Palm, Inc. - Milpitas CA

1402

D14434

6587282, Jul 1, 2003

Aug 16, 2002

10/222296

David Y. Wang - Fremont CA
David M. Aikens - Chester CT

Therma-Wave, Inc. - Fremont CA

G02B 900

359797, 359661, 359785

The subject invention relates to broadband optical metrology tools for performing measurements of patterned thin films on semiconductor integrated circuits. Particularly a family of optical designs for broadband, multi-wavelength, DUV-IR (185900 nm) all-refractive optical systems. The designs have net focusing power and this is achieved by combining at least one positively powered optical element with one negatively powered optical element. The designs have small spot-size over the wavelength range spanning 185-900 nm with substantially reduced spherical aberration, axial color, sphero-chromatism and zonal spherical aberration. The refractive optical systems are broadly applicable to a large class of broadband optical wafer metrology tools including spectrophotometers, spectroscopic reflectometers, spectroscopic ellipsometers and spectroscopic scatterometers.

6597212, Jul 22, 2003

Mar 12, 2002

10/097492

David Y. Wang - San Jose CA
Yu-Chi Cheng - Fremont CA

Neoaxiom Corporation - San Jose CA

H03B 1900

327117, 377 47

A phase interpolator circuit that produces 2 phase resolution elements using a control signal that has less than m bits. The circuit combines the function of a divide-by-N circuit with a phase interpolation circuit enabled by the use of a higher-speed clock as an input. By performing phase interpolation at a high speed and then slowing down the speed for the subsequent circuits, the phase resolution increases and fewer control bits are required.

6718092, Apr 6, 2004

May 9, 2002

10/143362

David W. Wang - Saratoga CA
John C. Tsai - Saratoga CA

Fibera, Inc. - Santa Clara CA

G02B 634

385 37

A frequency processing system for detecting, tuning, or stabilizing light frequency or wavelength in a light beam produced by a light source. A grating block receives the light beam and may produce diffracted beams and a passed beam. The diffracted beams are received by respective detectors which produce measurement signals that are communicated to a processor. The processor then produces control signals that are communicated to the light source where they are usable for detecting, tuning, or stabilizing the light frequency or wavelength. The grating blocks particularly employ planar or cubical gratings, or gradient versions of these, to produce the diffracted beams.