Inventor

Richard Clemow

Inventor

Gerrards Cross, GB

Overview

26→

Patents

1996–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 26 as inventor

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

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers30%

G10KSound-producing devices24%

H04SStereophonic systems20%

H03HImpedance networks, e.g. resonant circuits14%

G11BInformation storage based on relative movement between record carrier and transducer4%

H03GControl of amplification4%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering2%

G06FElectric digital data processing2%

PatentTitleYear

10,818,281Digital circuit arrangements for ambient noise-reduction2020 10,431,198Noise cancellation system with lower rate emulation2019 10,319,361Digital circuit arrangements for ambient noise-reduction2019 10,147,413Noise cancellation system with lower rate emulation2018 9,654,871'Noise cancellation system with lower rate emulation'2017 9,558,729'Digital circuit arrangements for ambient noise-reduction'2017 9,430,999'Noise cancellation'2016 9,224,382'Noise cancellation'2015 8,908,876'Noise cancellation system with lower rate emulation'2014 8,670,571'Frequency control based on device properties'2014 8,645,444'IIR filter for reducing the complexity of multiplying elements'2014 8,644,523'Digital circuit arrangements for ambient noise-reduction'2014 8,165,312'Digital circuit arrangements for ambient noise-reduction'2012 7,197,151'Method of improving 3D sound reproduction'2007 7,167,567'Method of processing an audio signal'2007 6,795,556'Method of modifying one or more original head related transfer functions'2004 6,643,375'Method of processing a plural channel audio signal'2003 6,614,910'Stereo sound expander'2003 6,577,736'Method of synthesizing a three dimensional sound-field'2003 6,208,687'Filter switching method'2001 5,917,916'Audio reproduction systems'1999 5,751,815'Apparatus for audio signal stereophonic adjustment'1998 5,666,425'Plural-channel sound processing'1997 5,623,431'Aligning a given signal with a corresponding reference signal'1997 5,600,727'Determination of position'1997 5,552,944'Method and apparatus for the determination of azimuth error'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2003Patents assigned to CENTRAL RESEARCH LAB LTD (10)· patent assignee history

1996–2020Based in Gerrards Cross, GB· patent location history

2003–2014Based in Bucks, GB· patent location history

2012–2017Patents assigned to WOLFSON MICROELECTRONICS PLC (5)· patent assignee history

2012–2014Patents assigned to CLEMOW RICHARD (4)· patent assignee history

2015–2020Patents assigned to CIRRUS LOGIC INT SEMICONDUCTOR LTD (6)· patent assignee history

2016–2020Patents assigned to CIRRUS LOGIC INC (7)· patent assignee history

2016Based in Buckinghamshire, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CENTRAL RESEARCH LAB LTD	10	1996–2003
CIRRUS LOGIC INC	7	2016–2020
CIRRUS LOGIC INT SEMICONDUCTOR LTD	6	2015–2020
WOLFSON MICROELECTRONICS PLC	5	2012–2017
CLEMOW RICHARDself	4	2012–2014

Locations

Location	Patents	Span
Gerrards Cross, GB	18	1996–2020
Bucks, GB	7	2003–2014
Buckinghamshire, GB	1	2016