David J Story

US Patent:

7922523, Apr 12, 2011

Filed:

Jul 20, 2009

Appl. No.:

12/505808

Inventors:

Randolph Cary Demuynck - Wake Forest NC, US
David Ryan Story - Holly Springs NC, US
Walter M. Marcinkiewicz - Chapel Hill NC, US

Assignee:

Sony Ericcson Mobile Communications AB - Lund

International Classification:

H01R 13/60

US Classification:

4395415, 439701, 439 70

Abstract:

The socket system comprises a set of vertically-stackable sockets. A first socket mounts on a printed circuit board to receive a first chip module, and a second socket stacks on the first socket to receive a second chip module. The first socket includes a first set of embedded contacts to electrically connect the first chip module to the printed circuit board, and a second set of embedded contacts to electrically connect the second socket to the printed circuit board. The second socket includes a third set of embedded contacts to electrically connect the second chip module to the printed circuit board. System upgrades are enabled by replacing the chip modules.

US Patent:

8185066, May 22, 2012

Filed:

Oct 23, 2009

Appl. No.:

12/604854

Inventors:

William David Anderson - Chapel Hill NC, US
David Story - Holly Springs NC, US

Assignee:

Sony Mobile Communications AB - Lund

International Classification:

H04B 1/04

US Classification:

4551143, 330149

Abstract:

A device may include an envelope detector to generate an envelope signal from the input signal, a drain bias controller to adjust a drain bias of the amplifier based on the envelope signal, a gate bias controller to adjust a gate bias of the amplifier based on the envelope signal, a predistortion controller to predistort the input signal based on the envelope signal, based on the adjusted drain bias, and based on the adjusted gate bias, and to output the predistorted signal, and an amplifier to receive the predistorted signal and to generate an amplified output signal from the predistorted signal. The device may be selectable to operate in a linear mode or a nonlinear mode. The nonlinear mode may be selected by applying a large gate offset bias.

US Patent:

8280318, Oct 2, 2012

Filed:

Aug 17, 2009

Appl. No.:

12/542225

Inventors:

Randolph Cary Demuynck - Wake Forest NC, US
David Ryan Story - Holly Springs NC, US

Assignee:

Sony Mobile Communications AB - Lund

International Classification:

H04B 1/38

US Classification:

455 903

Abstract:

The invention described herein provides a core modem assembly for a communication circuit that is well suited for mobile communication devices such as cellular phones, personal digital assistants, laptop computers, and hand-held computers. The core modem assembly comprises a baseband module, an RF module, and a socket connector that provides electrical isolation between the baseband module and RF module. The core modem assembly achieves a very small form factor and provides shielding between the baseband module and RF module. Further, the core modem assembly uses a “plug and play” design allowing late customization and interchangeability of the modules.

US Patent:

20080171523, Jul 17, 2008

Filed:

Dec 20, 2006

Appl. No.:

11/613392

Inventors:

William David Anderson - Chapel Hill NC, US
David Ryan Story - Holly Springs NC, US
Michael Alan Oakley - Durham NC, US

Assignee:

Sony Ericsson Mobile Communications AB - Lund

International Classification:

H04B 1/04
H03G 3/20

US Classification:

4551271, 330136

Abstract:

A power amplifier circuit for a mobile terminal controls the bias voltage depending on the modulation of the input signal. The power amplifier circuit includes a power amplifier control circuit configured to control power amplifier bias for a first input signal modulation using calibrated bias control values corresponding to a range of transmit power levels, and to control power amplifier bias for said second input signal modulation using adjusted bias control values obtained by adding bias offsets to said calibrated bias control values.

US Patent:

20110117863, May 19, 2011

Filed:

Nov 19, 2009

Appl. No.:

12/621549

Inventors:

David R. Story - Holly Springs NC, US
Paul Futter - Cary NC, US
Gerard J. Hayes - Wake Forest NC, US

International Classification:

H04B 1/40

US Classification:

455 77

Abstract:

The control of an antenna tuner for a portable electronic device includes closed loop tuning when sufficient transmit power is present. The closed loop tuning commences using a predetermined antenna tuner configuration for an operational band and device state. The closed loop tuning may be constrained by a tuning range associated with the predetermined antenna tuner configuration for the operational band and device state. Also, when transmit power is low or when a transceiver is in a receive only state, open loop tuning may be conducted by placing the antenna tuner in the predetermined (or default) configuration for the operational band and phone state.

US Patent:

20110300812, Dec 8, 2011

Filed:

Jun 4, 2010

Appl. No.:

12/794231

Inventors:

David R. Story - Holly Springs NC, US

International Classification:

H04B 1/40

US Classification:

455 77

Abstract:

Communications circuitry includes a controlled antenna tuner. The voltage across elements of the antenna tuner may be determined and, if an over-voltage situation is detected, remedial action may be taken. At times when a configuration of the antenna tuner is to be maintained and an over-voltage condition exists, the remedial action may include lowering an output power from a transceiver. Another type of remedial action may include introducing a phase shift between an antenna and the antenna tuner. At times when a configuration of the antenna tuner is to be changed and an over-voltage condition exists, the remedial action may include reducing output power of the transceiver. Another type of remedial action may include waiting for an opportune time to change the antenna tuner configuration.

US Patent:

20120009973, Jan 12, 2012

Filed:

Jul 12, 2010

Appl. No.:

12/834062

Inventors:

Randolph Cary Demuynck - Wake Forest NC, US
David Ryan Story - Holly Springs NC, US

Assignee:

Sony Ericsson Mobile Communications AB - Lund

International Classification:

H04M 1/00
H05K 7/00
H05K 3/30
H05K 1/11

US Classification:

4555501, 174261, 174260, 361760, 29832

Abstract:

An electronic device has a housing and circuitry disposed within the housing. The circuitry is mounted to, for example, a top surface of a Printed Wiring Board (PWB) disposed within the housing. The PWB has a dual-height cavity that is formed as a recess in the top surface. The dual-height cavity is sized to receive one or more electronic components. Electrical contacts disposed within the dual-height cavity electrically connect the electronic component to electronic circuits mounted to the top surface of the PWB.

US Patent:

20170125874, May 4, 2017

Filed:

Jan 17, 2017

Appl. No.:

15/408414

Inventors:

- Woburn MA, US
David Ryan Story - Holly Springs NC, US
Nuttapong Srirattana - Billerica MA, US
Darryl Earl Evans - Nashua NH, US

International Classification:

H01P 5/16
H04B 1/401

Abstract:

Disclosed are systems, circuits and methods related to low-loss bypass of a radio-frequency (RF) filter or diplexer. In some embodiments, a switching network circuitry can include a first switch that has an input pole configured to receive a radio-frequency (RF) signal, a pass-through throw configured to be connectable to the input pole to allow routing of the RF signal to an RF component, and at least one dedicated bypass throw configured to be connectable to the input pole and at least one bypass conduction path. The switching network circuitry can further include a second switch that has a pole and a throw, and is connectable between an output of the RF component and the bypass conduction path. Use of the dedicated bypass throw(s) in the first switch allows implementation of low-loss bypass of the filter or diplexer.