George C Hsu

US Patent:

6374079, Apr 16, 2002

Filed:

May 11, 2000

Appl. No.:

09/569746

Inventors:

George Hsu - Santa Rosa CA

Assignee:

PNI Corporation - Santa Rosa CA

International Classification:

H04B 138

US Classification:

455 111, 455507, 455 88, 455557, 455423

Abstract:

A RF communication module for enabling RF data communication in a wireless communication system is provided. The communication module comprises, a transmitter/receive circuitry for transmitting and receiving data, a RF chipset and microcontroller for enabling and controlling various functions of the RF communication module, an antennae circuitry for enabling function of the transmitter/receive circuitry and a data port for enabling serial communication between the RF module and connected components of a host device, characterized in that the RF communication module functions as a slave module or a controlling module dependent on the host device.

US Patent:

6549145, Apr 15, 2003

Filed:

Aug 10, 2001

Appl. No.:

09/927141

Inventors:

George Hsu - Santa Rosa CA
Christine Annette Sherer - Santa Rosa CA

Assignee:

PNI Corporation - Santa Rosa CA

International Classification:

G08G 109

US Classification:

340905, 340438, 340441

Abstract:

A combination radar/laser detector with environmental sensors is programmed to provide a range of functions, including weather information, road conditions and the like, and in some cases to incorporate road-specific information in functionality. The road-specific information may be provided by roadside RF broadcast terminals. In a preferred embodiment the system monitors characteristics that indicate a drivers state of awareness, and audio alerts are provides when the system determines a driver is dozing or drifting toward a dozing state. In various embodiments a broad range of functionality is provided based on received and sensed parameters.

US Patent:

7272667, Sep 18, 2007

Filed:

Apr 1, 2003

Appl. No.:

10/405788

Inventors:

George Hsu - Santa Rosa CA, US
Tony Marinus de Rijk - Santa Rosa CA, US

Assignee:

PNI Corporation - Santa Rosa CA

International Classification:

G06F 3/00
G06F 3/06

US Classification:

710 14, 710 16, 710 15, 710 8, 710 10, 710 18, 710 19

Abstract:

A portable CR-RW drive has a CD drive and spindle platform, a chargeable battery power source, at least one docking bay for docking a removable storage medium and a processor supporting firmware for enabling functions of the drive. In a preferred embodiment the drive is, in a portable fashion, used minimally to burn CDs from data stored on the removable storage medium using the battery as a power source and wherein no externally connected device is required to participate in the function of the drive.

US Patent:

7285964, Oct 23, 2007

Filed:

Jun 3, 2005

Appl. No.:

11/144975

Inventors:

George Hsu - Santa Rosa CA, US
Joseph Frank Miller - Santa Rosa CA, US

Assignee:

Sensor Platforms, Inc. - Santa Rosa CA

International Classification:

G01R 27/02

US Classification:

324707, 324658, 324602

Abstract:

A apparatus and method for creating a universally usable and configurable sensor platform which is used in conjunction with various sensor and sensing elements to sense and measure environmental conditions which incorporates inputs from multiple sensors - and -. The apparatus incorporates an oscillator which provides a signal whose frequency varies according to the inputs from sensors - and - in combination with a microprocessor. A cordic block allows for supplemental calculations of trigonometric operations and functions. An output unit converts the signals received from microprocessor into a variety of serial protocols.

US Patent:

7307411, Dec 11, 2007

Filed:

Dec 19, 2006

Appl. No.:

11/642479

Inventors:

George Hsu - San Jose CA, US
Joseph F. Miller - Santa Rosa CA, US

Assignee:

Sensor Platforms, Inc. - Santa Rosa CA

International Classification:

G01R 17/02

US Classification:

324 7613, 324606, 324607, 702193

Abstract:

A apparatus and method for creating a universally usable and configurable sensor platform which is used in conjunction with various sensor and sensing elements to sense and measure environmental conditions which incorporates inputs from multiple sensors - and -. The apparatus incorporates an oscillator which provides a signal whose frequency varies according to the inputs from sensors - and - in combination with a microprocessor. A cordic block allows for supplemental calculations of trigonometric operations and functions. An output unit converts the signals received from microprocessor into a variety of serial protocols.

US Patent:

7451549, Nov 18, 2008

Filed:

Aug 9, 2006

Appl. No.:

11/502593

Inventors:

Raj Sodhi - Santa Rosa CA, US
Jay Prunty - Santa Rosa CA, US
George Hsu - Santa Rosa CA, US
Becky Oh - Santa Rosa CA, US

Assignee:

PNI Corporation - Santa Rosa CA

International Classification:

G01C 17/38

US Classification:

33356, 701224, 702 92

Abstract:

A magnetic compass apparatus and method to account for magnetic distortion while determining a magnetic heading is disclosed. The method enables a compass module, comprising at least two magnetometers, to characterize its magnetic environment dynamically, while collecting data of a geomagnetic field; a user moves an apparatus through various orientations; the environment may or may not contain magnetic distortion influences. Data gathered by magnetometers and, optionally, accelerometers are processed through at least two filters before being transferred as a processed data set for repetitive measurement calculations. A series of calculations is executed recursively in time by solving one or more linear vector equations using processed data.

US Patent:

7526539, Apr 28, 2009

Filed:

Aug 7, 2000

Appl. No.:

09/633801

Inventors:

George Hsu - Santa Rosa CA, US

Assignee:

PNI Corporation - Santa Rosa CA

International Classification:

G06F 15/16

US Classification:

709223, 709203, 709224, 709217

Abstract:

A software-control-module for enabling a user to monitor and control home-automated-systems and appliances from one or more remote interfaces on a data-packet-network is provided. The module comprises a reporting function for reporting current status of the home-automated-systems and appliances; a selection function for selecting options related to system and appliance settings; a command-building function for building commands for system and appliance control; an execution function for executing commands; and a display function for displaying relevant data and for facilitating interactive control ability. the software-control module is distributed to pre-selected network locations frequented by a user such that the user may have control over home-automated systems and appliances while visiting the network location during network navigation.

US Patent:

7768738, Aug 3, 2010

Filed:

Nov 13, 2007

Appl. No.:

11/983895

Inventors:

Daniel Yves Abramovitch - Palo Alto CA, US
George Hsu - San Jose CA, US

Assignee:

Sensor Platforms, Inc. - San Jose CA

International Classification:

G11B 5/596

US Classification:

360 7703

Abstract:

Embodiments of mitigating the effects of disturbances of a disk drive are disclosed. One method includes sensing a position error signal of a transducer coupled to a surface of the disk drive, wherein the position error signal aids in control of an actuator of the disk drive. A first disturbance signal is generated by sensing a disturbance of a first sensor attached to the disk drive, wherein the first disturbance signal aids in control of the actuator. A second disturbance signal is generated by sensing a disturbance of a second sensor attached to the disk drive, wherein the second disturbance signal aids in control of the actuator. Effects of the disturbances on the position error signal are reduced by adaptively adjusting a gain of the first disturbance signal and a gain of the second disturbance signal.