Christopher Brian MARSHALL

Person

Reigate Surrey, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Estimating and using characteristic differences between wireless si...
- Patent number 12,015,452
- Issue date Jun 18, 2024
- U-BLOX AG
- Christopher Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Estimating one or more characteristics of a communications channel
- Patent number 11,601,307
- Issue date Mar 7, 2023
- U-BLOX AG
- Christopher Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intercepting an uplink signal to assist in timing or positioning ca...
- Patent number 11,567,164
- Issue date Jan 31, 2023
- U-BLOX AG
- Christopher Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Phase-comparison of multi-frequency transmissions for assisting the...
- Patent number 11,269,046
- Issue date Mar 8, 2022
- U-BLOX AG
- Christopher Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Phase-comparison for assisting the determination of position or time
- Patent number 11,175,413
- Issue date Nov 16, 2021
- U-BLOX AG
- Christopher Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for positioning with wireless signals
- Patent number 11,061,104
- Issue date Jul 13, 2021
- U-BLOX AG
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Intercepting an uplink signal to assist in timing or positioning ca...
- Patent number 11,009,580
- Issue date May 18, 2021
- U-BLOX AG
- Christopher Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Method and a system for managing a cellular network data base
- Patent number 10,194,277
- Issue date Jan 29, 2019
- U-BLOX AG
- Chris Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Calculating a ranging measurement in a cellular communications network
- Patent number 10,187,815
- Issue date Jan 22, 2019
- U-BLOX AG
- Marco Driusso
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Determining clock-drift using signals of opportunity
- Patent number 9,681,408
- Issue date Jun 13, 2017
- U-BLOX AG
- Christopher Brian Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Robust location estimation
- Patent number 9,465,095
- Issue date Oct 11, 2016
- U-BLOX AG
- Chris Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Positioning using a local wave-propagation model
- Patent number 9,035,827
- Issue date May 19, 2015
- U-BLOX AG
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Location estimation by observing wireless signals
- Patent number 8,804,551
- Issue date Aug 12, 2014
- U-BLOX AG
- Christopher Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Position validation
- Patent number 8,779,980
- Issue date Jul 15, 2014
- U-BLOX AG
- Andrew Thomas Yule
- G01 - MEASURING TESTING
Information Patent Grant
Event location determination
- Patent number 8,629,801
- Issue date Jan 14, 2014
- U-BLOX AG
- Chris Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Method of position stamping a photo or video clip taken with a digi...
- Patent number 8,253,822
- Issue date Aug 28, 2012
- U-BLOX AG
- Andrew T. Yule
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of creating an image file with combined image data and raw G...
- Patent number 8,248,487
- Issue date Aug 21, 2012
- U-BLOX AG
- Andrew T. Yule
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for determining location
- Patent number 8,224,350
- Issue date Jul 17, 2012
- U-BLOX AG
- Chris Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Processing of satellite positioning system signals
- Patent number 8,184,045
- Issue date May 22, 2012
- NXP B.V.
- Christopher B. Marshall
- G01 - MEASURING TESTING
Information Patent Grant
GPS RF front end and related method of providing a position fix, st...
- Patent number 7,986,268
- Issue date Jul 26, 2011
- NXP B.V.
- Saul R. Dooley
- G01 - MEASURING TESTING
Information Patent Grant
Method of position stamping a photo or video clip taken with a digi...
- Patent number 7,898,579
- Issue date Mar 1, 2011
- U-BLOX AG
- Andrew T. Yule
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of determining a GPS position fix and a GPS receiver for the...
- Patent number 7,679,556
- Issue date Mar 16, 2010
- Geotate B.V.
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Method of position stamping a photo or video clip taken with a digi...
- Patent number 7,619,662
- Issue date Nov 17, 2009
- Geotate B.V.
- Andrew T. Yule
- G11 - INFORMATION STORAGE
Information Patent Grant
GPS receiver with encrypted data transmission
- Patent number 7,233,282
- Issue date Jun 19, 2007
- NXP B.V.
- Andrew T. Yule
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Interactive system using tags
- Patent number 7,183,925
- Issue date Feb 27, 2007
- Koninklijke Philips Electronics N.V.
- Christopher Brian Marshall
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Antenna diversity arrangement
- Patent number 7,103,340
- Issue date Sep 5, 2006
- Koninklijke Philips Electronics N.V.
- Adrian G. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of determining the position of a mobile unit
- Patent number 7,089,112
- Issue date Aug 8, 2006
- Koninklijke Phillips Electronics N.V.
- Saul R. Dooley
- G01 - MEASURING TESTING
Information Patent Grant
Half duplex radio transceiver with low IF receiver
- Patent number 7,065,329
- Issue date Jun 20, 2006
- Koninklijke Philips Electronics N.V.
- Christopher B. Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement with beacon for providing information service
- Patent number 7,010,267
- Issue date Mar 7, 2006
- Koninklijke Philips Electronics N.V.
- Balthasar Antonius Gerardus Vanluijt
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of determining the position of a mobile unit
- Patent number 6,618,671
- Issue date Sep 9, 2003
- Koninklijke Philips Electronics N.V.
- Saul R. Dooley
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
ESTIMATING AND USING CHARACTERISTIC DIFFERENCES BETWEEN WIRELESS SI...
- Publication number 20220109516
- Publication date Apr 7, 2022
- U-BLOX AG
- Christopher MARSHALL
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ESTIMATING ONE OR MORE CHARACTERISTICS OF A COMMUNICATIONS CHANNEL
- Publication number 20220078050
- Publication date Mar 10, 2022
- U-BLOX AG
- Christopher MARSHALL
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR POSITIONING WITH WIRELESS SIGNALS
- Publication number 20200371193
- Publication date Nov 26, 2020
- U-BLOX AG
- Christopher Brian MARSHALL
- G01 - MEASURING TESTING
Information Patent Application
PHASE-COMPARISON FOR ASSISTING THE DETERMINATION OF POSITION OR TIME
- Publication number 20200333472
- Publication date Oct 22, 2020
- U-BLOX AG
- Christopher MARSHALL
- G01 - MEASURING TESTING
Information Patent Application
PHASE-COMPARISON OF MULTI-FREQUENCY TRANSMISSIONS FOR ASSISTING THE...
- Publication number 20200241105
- Publication date Jul 30, 2020
- U-BLOX AG
- Christopher MARSHALL
- G01 - MEASURING TESTING
Information Patent Application
INTERCEPTING AN UPLINK SIGNAL TO ASSIST IN TIMING OR POSITIONING CA...
- Publication number 20200081090
- Publication date Mar 12, 2020
- U-BLOX AG
- Christopher MARSHALL
- G01 - MEASURING TESTING
Information Patent Application
INTERCEPTING AN UPLINK SIGNAL TO ASSIST IN TIMING OR POSITIONING CA...
- Publication number 20190324111
- Publication date Oct 24, 2019
- U-BLOC AG
- Christopher MARSHALL
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND A SYSTEM FOR MANAGING A CELLULAR NETWORK DATA BASE
- Publication number 20180098199
- Publication date Apr 5, 2018
- U-BLOX AG
- Chris Marshall
- G01 - MEASURING TESTING
Information Patent Application
CALCULATING A RANGING MEASUREMENT IN A CELLULAR COMMUNICATIONS NETWORK
- Publication number 20170150383
- Publication date May 25, 2017
- U-BLOX AG
- Marco DRIUSSO
- G01 - MEASURING TESTING
Information Patent Application
DETERMINING CLOCK-DRIFT USING SIGNALS OF OPPORTUNITY
- Publication number 20150319725
- Publication date Nov 5, 2015
- U-BLOX AG
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Application
DUPLEXING APPARATUS, WIRELESS DEVICES AND RELATED METHODS
- Publication number 20150222412
- Publication date Aug 6, 2015
- U-BLOX AG
- Leo LAUGHLIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Satellite Positioning with Mixed Capture-Parameters
- Publication number 20130328720
- Publication date Dec 12, 2013
- U-BLOX AG
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Application
POSITIONING USING A LOCAL WAVE-PROPAGATION MODEL
- Publication number 20130229303
- Publication date Sep 5, 2013
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Application
POSITION VALIDATION
- Publication number 20130082872
- Publication date Apr 4, 2013
- Andrew Thomas Yule
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND APPARATUS FOR DETERMINING LOCATION
- Publication number 20110294516
- Publication date Dec 1, 2011
- Chris Marshall
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
EVENT LOCATION DETERMINATION
- Publication number 20110248886
- Publication date Oct 13, 2011
- Chris Marshall
- G01 - MEASURING TESTING
Information Patent Application
LOCATION ESTIMATION BY OBSERVING WIRELESS SIGNALS
- Publication number 20110182238
- Publication date Jul 28, 2011
- Christopher Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF POSITION STAMPING A PHOTO OR VIDEO CLIP TAKEN WITH A DIGI...
- Publication number 20110157422
- Publication date Jun 30, 2011
- Andrew T. Yule
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ROBUST LOCATION ESTIMATION
- Publication number 20110128183
- Publication date Jun 2, 2011
- Chris Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROCESSING OF SATELLITE POSITIONING SYSTEM SIGNALS
- Publication number 20100231446
- Publication date Sep 16, 2010
- NXP B.V.
- Christopher B. Marshall
- G01 - MEASURING TESTING
Information Patent Application
METHOD OF POSITION STAMPING A PHOTO OR VIDEO CLIP TAKEN WITH A DIGI...
- Publication number 20100002097
- Publication date Jan 7, 2010
- Andrew T. Yule
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of Creating an Image File and a Digital Camera for the Same
- Publication number 20090237299
- Publication date Sep 24, 2009
- Andrew T. Yule
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GPS RF FRONT END AND RELATED METHOD OF PROVIDING A POSITION FIX, ST...
- Publication number 20090179794
- Publication date Jul 16, 2009
- NXP B.V.
- Saul R. Dooley
- G01 - MEASURING TESTING
Information Patent Application
Method of Determining a Gps Position Fix a Gps Receiver for the Same
- Publication number 20080231510
- Publication date Sep 25, 2008
- NXP B.V.
- Christopher Brian Marshall
- G01 - MEASURING TESTING
Information Patent Application
Method of position stamping a photo or video clip taken with a digi...
- Publication number 20060257122
- Publication date Nov 16, 2006
- Koninklijke Philips Electronics N.V.
- Andrew T. Yule
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wireless security beacon for consumer equipment
- Publication number 20060149871
- Publication date Jul 6, 2006
- Koninklijke Philips Electronics N.V.
- Christopher B. Marshall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Gps receiver with encrypted data transmission
- Publication number 20060071850
- Publication date Apr 6, 2006
- Andrew T Yule
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Interactive system using tags
- Publication number 20050140504
- Publication date Jun 30, 2005
- Koninklijke Philips Electronics N.V.
- Christopher Brian Marshall
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of determining the position of a mobile unit
- Publication number 20030212487
- Publication date Nov 13, 2003
- Koninklijke Philips Electronics N.V.
- Saul R. Dooley
- G01 - MEASURING TESTING
Information Patent Application
Antenna diversity arrangement
- Publication number 20020183087
- Publication date Dec 5, 2002
- Koninklijke Philips Electronics N.V.
- Adrian G. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Christopher Brian MARSHALL

Person

Patents Grantslast 30 patents

Estimating and using characteristic differences between wireless si...

Estimating one or more characteristics of a communications channel

Intercepting an uplink signal to assist in timing or positioning ca...

Phase-comparison of multi-frequency transmissions for assisting the...

Phase-comparison for assisting the determination of position or time

Method and apparatus for positioning with wireless signals

Intercepting an uplink signal to assist in timing or positioning ca...

Method and a system for managing a cellular network data base

Calculating a ranging measurement in a cellular communications network

Determining clock-drift using signals of opportunity

Robust location estimation

Positioning using a local wave-propagation model

Location estimation by observing wireless signals

Position validation

Event location determination

Method of position stamping a photo or video clip taken with a digi...

Method of creating an image file with combined image data and raw G...

Method and apparatus for determining location

Processing of satellite positioning system signals

GPS RF front end and related method of providing a position fix, st...

Method of position stamping a photo or video clip taken with a digi...

Method of determining a GPS position fix and a GPS receiver for the...

Method of position stamping a photo or video clip taken with a digi...

GPS receiver with encrypted data transmission

Interactive system using tags

Antenna diversity arrangement

Method of determining the position of a mobile unit

Half duplex radio transceiver with low IF receiver

Arrangement with beacon for providing information service

Method of determining the position of a mobile unit

Patents Applicationslast 30 patents

ESTIMATING AND USING CHARACTERISTIC DIFFERENCES BETWEEN WIRELESS SI...

ESTIMATING ONE OR MORE CHARACTERISTICS OF A COMMUNICATIONS CHANNEL

METHOD AND APPARATUS FOR POSITIONING WITH WIRELESS SIGNALS

PHASE-COMPARISON FOR ASSISTING THE DETERMINATION OF POSITION OR TIME

PHASE-COMPARISON OF MULTI-FREQUENCY TRANSMISSIONS FOR ASSISTING THE...

INTERCEPTING AN UPLINK SIGNAL TO ASSIST IN TIMING OR POSITIONING CA...

INTERCEPTING AN UPLINK SIGNAL TO ASSIST IN TIMING OR POSITIONING CA...

METHOD AND A SYSTEM FOR MANAGING A CELLULAR NETWORK DATA BASE

CALCULATING A RANGING MEASUREMENT IN A CELLULAR COMMUNICATIONS NETWORK

DETERMINING CLOCK-DRIFT USING SIGNALS OF OPPORTUNITY

DUPLEXING APPARATUS, WIRELESS DEVICES AND RELATED METHODS

Satellite Positioning with Mixed Capture-Parameters

POSITIONING USING A LOCAL WAVE-PROPAGATION MODEL

POSITION VALIDATION

METHOD AND APPARATUS FOR DETERMINING LOCATION

EVENT LOCATION DETERMINATION

LOCATION ESTIMATION BY OBSERVING WIRELESS SIGNALS

METHOD OF POSITION STAMPING A PHOTO OR VIDEO CLIP TAKEN WITH A DIGI...

ROBUST LOCATION ESTIMATION

PROCESSING OF SATELLITE POSITIONING SYSTEM SIGNALS

METHOD OF POSITION STAMPING A PHOTO OR VIDEO CLIP TAKEN WITH A DIGI...

Method of Creating an Image File and a Digital Camera for the Same

GPS RF FRONT END AND RELATED METHOD OF PROVIDING A POSITION FIX, ST...

Method of Determining a Gps Position Fix a Gps Receiver for the Same

Method of position stamping a photo or video clip taken with a digi...

Wireless security beacon for consumer equipment

Gps receiver with encrypted data transmission

Interactive system using tags

Method of determining the position of a mobile unit

Antenna diversity arrangement