Katherine J Elliott

US Patent:

6766490, Jul 20, 2004

Filed:

Mar 3, 2000

Appl. No.:

09/518581

Inventors:

Gary Garrabrant - Seattle WA
Katherine Elliott - Seattle WA

Assignee:

palmOne, Inc. - Milpitas CA

International Classification:

H03M 1315

US Classification:

714759

Abstract:

A method and system for encoding and decoding a sequence of K binary digits using reduced-size lookup tables. The sequence of K binary digits is separated into multiple segments (e. g. , a first segment and a second segment). The first segment is used as an index into a first lookup table that contains an encoded version of all combinations of binary digits possible in the first segment. In a similar manner, the second segment is used as an index into a second lookup table that contains an encoded version of all combinations of binary digits possible in the second segment. Using the first lookup table, an encoded sequence is obtained for the first segment, and an encoded sequence is obtained for the second segment using the second lookup table. An encoded sequence for the entire sequence of K binary digits is obtained by combining the encoded sequences for the first and second segments. Two lookup tables are thus used to encode the sequence of K binary digits instead of a single lookup table having 2 entries.

US Patent:

6950976, Sep 27, 2005

Filed:

Jan 25, 2002

Appl. No.:

10/058168

Inventors:

Gary Garrabrant - Bellevue WA, US
Katherine Elliott - Seattle WA, US

Assignee:

palmOne, Inc. - Santa Clara CA

International Classification:

H03M013/00

US Classification:

714794

Abstract:

A method is described for decoding a signal in a noise environment using maximum likelihood soft decision decoding for input streams containing known data. ISI problems are ameliorated, and decoding is implemented by palmtop computers and devices of limited computational capability. Decoded signals make use of the (12, 8) Hamming Code for a MOBITEX application. A table with predetermined ISI values is downloaded from a host processor to an on-board DSP at runtime. Known information in the frame header is utilized to help determine unknown data. Decoding proceeds in one embodiment by finding codewords that minimize a sum corresponding to data values extracted from header information. Other tables generated for use contain soft decision information and FEC words. Minimizing data translation by using known data and other embodiments advantageously minimize computational resources required to decode data by maximum likelihood soft decision decoding.

US Patent:

6952571, Oct 4, 2005

Filed:

Jun 4, 2001

Appl. No.:

09/874674

Inventors:

Gary Garrabrant - Seattle WA, US
John Brown - Lynnwood WA, US
Katherine Elliott - Seattle WA, US

Assignee:

Palm, Inc. - Sunnyvale CA

International Classification:

H04B017/00

US Classification:

455226, 4553431, 4553432, 4553433, 4553436, 4552262

Abstract:

A method and system of periodically measuring the signal strength fluctuations in a wireless connection between a portable computer system and a wireless network. The portable computer system has a main processor and a DSP (digital signal processor). The DSP receives instructions from the main processor for controlling the periodic measuring, and subsequent thereto is placed in low power mode. The main processor is placed into a low power mode after sending the instructions. The DSP periodically awakens to measure the signal strength fluctuations while the main processor remains in a low power mode. When the signal strength fluctuation is unacceptable, this triggers the DSP to awaken the main processor. When the signal strength fluctuation is acceptable, the DSP returns to a low power state until the next periodic measuring.

US Patent:

8014832, Sep 6, 2011

Filed:

Aug 8, 2005

Appl. No.:

11/200521

Inventors:

Gary Garrabrant - Seattle WA, US
John Brown - Lynnwood WA, US
Katherine Elliott - Seattle WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04M 1/00
H04B 1/38

US Classification:

455574, 4553432, 4553433, 455522

Abstract:

A property of a wireless signal over time is monitored while a processor is maintained in a first power state that utilizes less power than a second power state. While the processor remains in the first power state, a measure of the property is compared to a first threshold and to a second threshold. The processor can be transitioned from the first power state to the second power state if the measure crosses the first threshold and the second threshold, and otherwise the processor is maintained in the first power state.

US Patent:

20120246629, Sep 27, 2012

Filed:

Jun 6, 2012

Appl. No.:

13/489455

Inventors:

Mark Allen Bartel - Federal Way WA, US
Craig Skinner - Snohomish WA, US
Ken Johnson - Renton WA, US
Katherine Elliott - Seattle WA, US

International Classification:

G06F 9/44

US Classification:

717168

Abstract:

Firmware of a hand-held device may be updated automatically dependent on the execution status of an update application resident in the memory of the hand-held device. The execution of the update application is abstracted from the user to provide an enhanced user experience.

US Patent:

6754895, Jun 22, 2004

Filed:

Apr 26, 2001

Appl. No.:

09/843797

Inventors:

Mark Allen Bartel - Federal Way WA
Craig Skinner - Snohomish WA
Ken Johnson - Renton WA
Katherine Elliott - Seattle WA

Assignee:

Palm Source, Inc. - Sunnyvale CA

International Classification:

G06F 944

US Classification:

717171, 717176

Abstract:

A method for automatically updating firmware of a hand-held device. To initiate the automatic update, a reset of the hand-held device is detected. Once a reset is detected, an update application is executed, wherein the update application performs the required updating steps. The update application determines whether a flag has been set in a nonvolatile memory area of the hand-held device. The flag is used to indicate a previous execution of the update application. If the flag is set, the update application terminates, otherwise, the update application performs an identification test by determining whether a device ID of the device matches a device ID stored in a table of the update application. If the device ID does not match, the update application terminates and the flag is set. If the device ID matches, the update application updates the firmware of the hand-held device, sets the flag, and terminates.