James S Ho

7102393, Sep 5, 2006

Sep 30, 2004

10/956357

Vincent S. Tso - Milpitas CA, US
James B. Ho - San Jose CA, US

Exar Corporation - Fremont CA

H03K 5/22
G01R 19/00

327 53, 327 78

To detect whether a closed-loop's voltage is out of range, a voltage detector includes first and second transistors that deliver first and second currents respectively to first and second high impedance nodes. The voltage detector further includes third and fourth transistors that draw third and fourth currents respectively from the first and second nodes. The first and second currents are scaled replicas of a current flowing through a current source of a voltage-to-current converter that converts the close-loop's voltage to a current and supplies a first voltage to the first and second transistors. The third and fourth currents are scaled replicas of a different current flowing through a current mirror of the voltage-to-current converter and that supplies a second voltage to the third and fourth transistors.

7834672, Nov 16, 2010

Feb 10, 2007

11/673569

Christopher G. Arcus - San Jose CA, US
Vincent Tso - Milpitas CA, US
James Ho - San Jose CA, US

Exar Corporation - Fremont CA

H03L 7/06

327157

A charge pump is configured to control current flow at an output node in response to input signals. A plurality of control signals are generated based upon the input signals. The control signals operate to control the timing and duration of current flows within the charge pump and to thereby reduce charge pump power consumption. Based upon the control signals, the conductivity of a first path between a power supply and the output node and a second path between the output node and a ground potential is varied. Optionally, the charge pump is disposed as part of a phase-locked loop (PLL), the input signals are produced by a phase/frequency detector, and current flow at the output node controls an oscillator element.

8564595, Oct 22, 2013

Jul 26, 2012

13/559453

James Ho - Mill Valley CA, US
Szymon Swistun - Belmont CA, US
Sulabh Patel - San Mateo CA, US
Nils Jonas Norberg - San Francisco CA, US

Zynga Inc. - San Francisco CA

G09G 5/00

345426, 245582

A workflow for 3D content authoring, delivery, and rendering is facilitated based on pre-authored image projections to obtain improvements in authoring efficiency. Additionally, a content delivery platform centered on such pre-authored image projections provides a mechanism for significantly improving streaming efficiency for 3D worlds. Multiple images encode primary surface detail of 3D worlds in real-time applications. Examples of such projections include images that can be as rich as film frames, feature animation frames, high end digital renders, concept paintings, or any suitable combination thereof. An algorithm for improved image projection camera path trajectories, sampling selection, and blending may be implemented by various systems and methods to facilitate smooth transitions during movements of a player within a game set in the 3D space. In addition, a back-projection technique may be implemented by various systems and methods to propagate revisions of one or more projections.

20030190001, Oct 9, 2003

Apr 8, 2002

10/118661

Roubik Gregorian - Saratoga CA, US
Mir Ghaderi - Cupertino CA, US
James Ho - San Jose CA, US
Vincent Tso - Milpitas CA, US

Exar Corporation - Fremont CA

H04L007/02

375/361000, 327/009000

A converting circuit which converts RZ data into intermeidate NRZ data. The intermediate NRZ data is then sampled to detect a phase of the intermediate NRZ data, which corresponds to the phase of the RZ data. In a preferred embodiment, the converting circuit is incorporated in a modified Hogge NRZ phase detector. A toggle flip-flop is placed in front of the Hogge phase detector. Since the toggle flip-flop is triggered by the leading edge of the RZ pulse, it essentially converts the RZ data into intermediate NRZ data. An exclusive-OR gate samples two different output stages of the Hogge NRZ phase detector, with the output stages being separated by an interim stage to provide a clock delay. The output of the exclusive-OR gate is an intermediate NRZ signal that corresponds to the input RZ data stream, which can then be sampled. The exclusive-OR gates inside the Hogge phase detector are used, as in the Hogge phase detector, to produce the up and down signals provided to a charge pump that is part of a PLL. The insertion of the toggle flip-flop allows these same exclusive-OR gates to perform the same function in the present invention.

20040025131, Feb 5, 2004

Aug 5, 2002

10/213657

Sunil Walia - Sunnyvale CA, US
James Ho - Sunnyvale CA, US
Harpreet Anand - Fremont CA, US
Yoganand Chillarige - Sunnyvale CA, US

Sun Microsystems, Inc., a Delware Corporation

G06F017/50

716/010000, 716/007000

A method for placing repeater banks in an integrated circuit (IC) design, the IC design including a plurality of circuit blocks placed in an IC design area, the method includes (a) obtaining information of virtual coordinates of virtual repeaters, the virtual repeaters being inserted individually in signal paths between the circuit blocks, the virtual coordinates representing physical location of each of the virtual repeaters in the IC design area, (b) dividing the IC design area into a plurality of sections, (c) determining, for each of the sections, a quantity of the virtual repeaters having the virtual coordinates within the section, (d) clustering, for each of the sections, the virtual repeaters into a repeater bank having a selected size in accordance with the quantity of the virtual repeaters in the section, and (e) assigning to each of the repeater banks a location to be placed within the corresponding section.

20060238263, Oct 26, 2006

Jun 30, 2006

11/428325

Vincent Tso - Milpitas CA, US
James Ho - San Jose CA, US

Exar Corporation - Fremont CA

H03L 7/00

331016000

To detect whether a closed-loop's voltage is out of range, a voltage detector includes first and second transistors that deliver first and second currents respectively to first and second high impedance nodes. The voltage detector further includes third and fourth transistors that draw third and fourth currents respectively from the first and second nodes. The first and second currents are scaled replicas of a current flowing through a current source of a voltage-to-current converter that converts the close-loop's voltage to a current and supplies a first voltage to the first and second transistors. The third and fourth currents are scaled replicas of a different current flowing through a current mirror of the voltage-to-current converter and that supplies a second voltage to the third and fourth transistors.

58251669, Oct 20, 1998

Mar 4, 1996

8/615883

Vincent S. Tso - Milpitas CA
James B. Ho - San Jose CA

Sierra Semiconductor - San Jose CA

G08C 1904

323299

A power supply self adjusted circuit that can sense a power supply voltage and detect whether the power supply is of a first value (e. g. , 5V) or a second value (e. g. , 3. 3 V). In the case of a modem system, the power supply self adjusted circuit then adjusts the modem system accordingly. Hence, using this circuit, a modem or other signal processing circuit can be designed to work for both 5V and 3. 3V power supply systems, for example. Futhermore, the power supply self adjusted circuit enables a modem system to automatically adjust itself when the power supply is switched from 5V to 3. 3V or vice versa, without any manual intervention from the user. This capability is important for increasingly-popular PC Card- modems.

20180191827, Jul 5, 2018

Dec 23, 2017

15/853785

- San Jose CA, US
Christopher Hansen Bourdon - San Francisco CA, US
James Chia Ho Chou - San Francisco CA, US
Laurent Baumann - Campbell CA, US

H04L 29/08
H04W 88/02
H04W 84/12

A media content management device includes one or more memory devices storing instructions, and one or more processors configured to execute the instructions to perform steps of a method for providing management of media content. The device may receive media content from a data source and determine a set of media operations that can be performed by the device on a locally stored copy of the media content on the storage means or by a cloud storage system on a remotely stored copy. Based on whether the cloud storage system is reachable, a first media operation may be performed on the remotely stored copy of the media content or on the locally stored copy of the media content. The device may open a communication path with a user device and transmit a portion of the media content to the user device before uploading to the cloud storage system is complete.