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Inventor

David Chappaz

Inventor
Milton Keynes, GB

Overview

16→
Patents
2006–2016
Patent span
Electricity
Primary field (CPC H)

Patents· 16 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication30%
H03MCoding13%
H03FAmplifiers10%
H03KPulse technique10%
H04BTransmission10%
H03HImpedance networks, e.g. resonant circuits7%
G01SRadio direction-finding3%
H03DDemodulation or transference of modulation from one carrier to another3%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%
H04MTelephonic communication3%
PatentTitleYear
9,431,973'Pulse-width modulation generator'20169,407,238'Devices and methods for pulse-width modulation'20169,362,888'Devices and methods for converting digital signals'20168,773,181'Locked loop circuits and methods'20148,774,857'Schemes for the efficient reception of radio communications signals'20148,699,981'Receiver'20148,627,187'Decoding of recursive convolutional codes by means of a decoder for non-recursive convolutional codes'20148,503,571'Dual purpose modulator'20138,457,184'Method and apparatus for performing log-likelihood calculations'20138,442,156'Adaptive IQ alignment apparatus'20138,331,499'Receiver'20128,095,077'Signal power estimation'20127,970,077'Estimation of symbols of transmitted signals using hypotheses'20117,254,369'Process and device for estimating the speed of movement of a mobile terminal of a wireless communication system'20077,054,392'Process and device for estimating the successive values of digital symbols, in particular for the equalization of an information transmission channel in mobile telephony'20066,990,142'Process and device for estimating the impulse response of an information transmission channel, in particular for a cellular mobile telephone'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2007Patents assigned to ST MICROELECTRONICS NV (3)· patent assignee history
2006–2007Based in Saint-Julien-en-Genevois, FR· patent location history
2006Based in Geneva, CH· patent location history
2011–2014Patents assigned to CAMBRIDGE SILICON RADIO LTD (10)· patent assignee history
2011–2016Based in Cambridgeshire, GB· patent location history
2012–2014Patents assigned to CHAPPAZ DAVID (4)· patent assignee history
2012–2013Patents assigned to CHAPPAZ DAVID F (2)· patent assignee history
2012–2016Based in Milton Keynes, GB· patent location history
2013–2014Based in Cambridge, GB· patent location history
2016Patents assigned to QUALCOMM TECHNOLOGIES INT LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CAMBRIDGE SILICON RADIO LTD102011–2014
CHAPPAZ DAVIDself42012–2014
QUALCOMM TECHNOLOGIES INT LTD32016
ST MICROELECTRONICS NV32006–2007
CHAPPAZ DAVID Fself22012–2013
Locations
LocationPatentsSpan
Milton Keynes, GB72012–2016
Cambridge, GB42013–2014
Cambridgeshire, GB22011–2016
Saint-Julien-en-Genevois, FR22006–2007
Geneva, CH12006