Patent Assignment
Reel/Frame 035806/0389
Assignment of Assignor's Interest
Recorded: 2015-06-02
Pages: 30
Assignor
CIRRUS LOGIC INTERNATIONAL (UK) LTD.
Executed: 2015-03-29
Assignee
CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
26 WESTFIELD ROAD, WESTFIELD HOUSE, EDINBURGH, EH11 2QB, UNITED KINGDOM
Covered Properties
(160)
Improved Analog to Digital Video Converter
Patent:
5,874,909 →
Application:
08/799,904 →
Digital to Analogue Converter with Dynamic Element Matching
Patent:
6,583,742 →
Application:
09/622,178 →
Audio Transient Suppression Circuits and Methods
Patent:
6,600,365 →
Application:
10/146,114 →
Digital-To-Analogue Converter Circuits
Patent:
6,573,850 →
Application:
10/153,913 →
Transconductance Amplifiers
Temperature Sensing Apparatus and Methods
Analogue Selector
Phase/Frequency Detector and Phase Lock Loop Circuit
Digital-To-Analogue Converter Circuits
Class D Amplifier
Word Length Reduction Circuit
Low Noise Op Amp
Amplifier
Clock Synchroniser
Audio Processing
Analogue to Digital Converter
Pulse Width Modulator Quantisation Circuit
Switched Capacitor Dac
Patent:
7,102,557 →
Application:
11/140,951 →
Power Supply Circuit for Portable Battery Powered Device
Feedback Controller for Pwm Amplifier
Low Noise Op Amp
Current Sensing Circuit
Audio Device and Method
Portable Wireless Telephony Device
Audio Device
Delay-Locked Loop Circuits
Mems Process and Device
Power Sequencing Circuit
Debounce Circuit and Method
Switching Regulator Circuits
Digital-To-Analog Converter with Dynamic Element Matching to Minimize Mismatch Error
Driver Apparatus and Method
Protection Circuit and Method
Amplifier Circuits, Methods of Starting and Stopping Amplifier Circuits
Amplifier Apparatus and Method
Amplifier Apparatus and Method
Dc-Dc Converter Circuits, and Methods and Apparatus Including Such Circuits
Voltage Reference Circuit
Constant Frequency Current-Mode Buck-Boost Converter with Reduced Current Sensing
Digital-To-Analog Converter Using Selected Single Bit Converter Elements
Calibration Circuit and Associated Method
Charge Pump Circuit and Methods of Operation Thereof
Charge Pump Circuit and Methods of Operation Thereof
Charge Pump Circuit and Methods of Operation Thereof
Audio Amplifier Circuit and Electronic Apparatus Including the Same
Amplifier Circuit and Methods of Operation Thereof
Apparatus and Method for Monitoring and Controlling a Device Under Test
Pattern Detection Circuitry
Sparse-Coded Look-Up Table
Real Time Clock
Ambient Noise Reduction Arrangements
Method to Reduce the Pin Count on an Integrated Circuit and Associated Apparatus
Digital to Analog Converter Circuits and Methods of Operation Thereof
Frequency Synthesizer
Locked Loop Circuit
Ambient Noise-Reduction System
Mems Device
Mems Device
Digtal Circuit Arrangements for Ambient Noise-Reduction
Dynamic Range Controller
Switched-Capacitor Circuit
Capacitive Transducer Circuit and Method
Clock Synchroniser
Sample Rate Converter
Communication Apparatus with Ambient Noise Reduction
Dc-Dc Converter Circuits, and Methods and Apparatus Including Such Circuits
Calibration Circuit and Associated Method
Apparatus and Method for Biasing a Transducer
Semiconductor Structures for Biasing Devices
Apparatus and Method for Testing a Capacitive Transducer and/or Associated Electronic Circuitry
Charge Pump Circuits
Control Sequencer
Multi-Output Dc-Dc Converter
Amplifier Circuit
Amplifier Circuit and Method of Amplifying a Signal in an Amplifier Circuit
Mems Process and Device
Mems Device and Process
Mems Device with Reduced Stress in the Membrane and Manufacturing Method
Mems Device and Process
Mems Process and Device
Charge Pump Circuit and Methods of Operation Thereof
Iir Filter for Reducing the Complexity of Multiplying Elements
Amplifier Circuit and Methods of Operation Thereof
Noise Cancellation System with Gain Control Based on Noise Level
Noise Cancellation System with Lower Rate Emulation
Frequency Control Based on Device Properties
Capacitive Transducer Circuit and Method
Cellular Wireless Telephone and Audio Codec Therefor
Power Management Apparatus and Methods
Current Limiting for Dc-Dc Converters
Power Management Apparatus and Methods
Switched Power Regulator with Error Signal Estimation and Presetting
Level-Shifter Circuit
Dc-Dc Converter with Low Side Switch Control
Dc-Dc Converters Operable in a Discontinuous Switching Mode
Amplifier Circuit and Methods of Operation Thereof
Amplifier Circuit and Methods of Operation Thereof
Amplifier Circuit
Noise Cancellation System
Clock Synchroniser
Charge Pump Circuit and Methods of Operation Thereof
Amplifier Circuit and Methods of Operation Thereof
Dc-Dc Converter Circuits, and Methods and Apparatus Including Such Circuits
Dc-Dc Converters
Application:
13/229,101 →
Publication:
US 2012/0062190
Noise Cancellation System
Pattern Detection Circuitry
Dc Offset Compensation
Charge Pump Circuit
Charge Pump Circuit
Digital Circuit Arrangements for Ambient Noise-Reduction
Digital Signal Routing Circuit
Application:
13/481,403 →
Publication:
US 2012/0300960
Amplifier Circuit and Method of Amplifying a Signal in an Amplifier Circuit
Data Interface with Variable Bit Clock for Changing the Number of Time Slots in a Frame
Charge Pump Circuit and Methods of Operation Thereof
Amplifier Circuit
Clock Generator
Data Transfer
Noise Cancellation System
Active Noise Cancellation System
Charge Pump Circuit and Methods of Operations Thereof
Wireless Cellular Telephone with Audio Codec
Mems Process and Device
Analogue-To-Digital Converter
Ambient Noise Reduction Arrangements
Mems Device
Application:
13/937,067 →
Publication:
US 2014/0016798
Amplifier Circuit and Method of Amplifying a Signal in an Amplifier Circuit
Ear-Worn Speaker-Carrying Devices
Application:
13/952,035 →
Publication:
US 2013/0308786
Dc-Dc Converters Operable in a Discontinuous Switching Mode
Mems Device and Process
Active Noise Cancelling Ear Phone System
Earphone
Noise Cancellation
Dc Offset Compensation
Digital Circuit Arrangements for Ambient Noise-Reduction
Apparatus and Method for Testing a Capacitive Transducer and/or Associated Electronic Circuitry
Amplifier Circuit and Methods of Operation Thereof
Mems Device and Process
Amplifier Circuit
Mems Process and Device
Headphone Device
Microphone Biasing Circuitry and Method Thereof
Speech Recognition
Signal Envelope Processing
Mems Device and Process
Mems Device and Process
Read-Out for Mems Capacitive Transducers
Mems Process and Device
Wireless Cellular Telephone with Audio Codec
Class-D Amplifier Circuits
Charge Pump Circuit
Noise Cancellation System with Lower Rate Emulation
Biasing Circuitry for Mems Transducers
Communication Apparatus with Ambient Noise Reduction
Application:
14/601,854 →
Publication:
US 2015/0139434
Loudspeaker Protection Systems and Methods
Amplifier Circuit and Method of Amplifying a Signal in an Amplifier Circuit
Mems Device and Process
Connectors for Audio Data Transfer
Application:
62/120,587 →
Transmitting Signals Between Modules
Application:
62/130,233 →
Identification of Modules on a Bus
Application:
62/130,254 →
Low Power Bidirectional Bus
Application:
62/130,304 →
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 25, 2000
From: HOSSACK, DAVID MACDONALD
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 011230/0469 →
Assignment of Assignor's Interest
Jul 15, 2002
From: FRITH, PETER J.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 013094/0731 →
Assignment of Assignor's Interest
Aug 13, 2002
From: PENNOCK, JOHN L.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 013192/0268 →
Assignment of Assignor's Interest
Dec 31, 2002
From: PENNOCK, JOHN L.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 013622/0266 →
Assignment of Assignor's Interest
Apr 16, 2003
From: PENNOCK, JOHN L.; GRANVILLE, EDWARD M.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 013965/0425 →
Assignment of Assignor's Interest
Sep 15, 2003
From: LESSO, PAUL
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 014507/0301 →
Assignment of Assignor's Interest
Oct 24, 2003
From: GRANVILLE, EDWARD M.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 014630/0541 →
Assignment of Assignor's Interest
May 24, 2004
From: FRITH, PETER J.; PENNOCK, JOHN L.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 015366/0654 →
Assignment of Assignor's Interest
May 25, 2004
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 015369/0788 →
Assignment of Assignor's Interest
May 27, 2004
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 015395/0970 →
Assignment of Assignor's Interest
Jul 12, 2004
From: RICHARD, PATRICK E.; PENNOCK, JOHN L.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 015556/0640 →
Assignment of Assignor's Interest
Sep 24, 2004
From: RICHARD, PATRICK E.; PENNOCK, JOHN L.
To: WOLFSON MICROELECTRONICS LIMITED
Reel/Frame 015827/0769 →
Assignment of Assignor's Interest
Jan 4, 2005
From: WOLFSON MICROELECTRONICS LIMITED
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 015621/0281 →
Assignment of Assignor's Interest
Jan 7, 2005
From: LESSO, PAUL
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 016140/0525 →
Assignment of Assignor's Interest
Mar 28, 2005
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 016402/0624 →
Assignment of Assignor's Interest
Jun 22, 2005
From: CRINGEAN, ANDREW J.
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 016714/0423 →
Assignment of Assignor's Interest
Jul 14, 2005
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 016777/0861 →
Assignment of Assignor's Interest
Aug 22, 2005
From: FRITH, PETER
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 016910/0280 →
Assignment of Assignor's Interest
Oct 17, 2005
From: FRITH, PETER; SINAI, DAVID
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 017117/0204 →
Corrective Assignment to Correct the Conveying Party "James R. C. Craig" to "James R. C. Reid," as Signed; and Add Wolfson as a Receiving Party, in Assignment Previously Recorded on Reel 008643 Frame 0646. Assignor(S) Hereby Confirms the Assignment by Andrew J. Cringean & James R. C. Reid to Wolfson Micro-Electronics Limited.
Apr 16, 2007
From: SOENEN, ERIC G.; NAVE, JAMES E.; PETERSON, KIRK D.; CRINGEAN, ANDREW J.
To: TEXAS INSTRUMENTS INCORPORATED; WOLFSON MICRO-ELECTRONICS LIMITED
Reel/Frame 019161/0605 →
Corrective Assignment to Correct the Assignee's Name Previously Recorded on Reel 015395 Frame 0970. Assignor(S) Hereby Confirms the Entire Right,Title, and Interest....
Apr 19, 2012
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 028079/0048 →
Corrective Assignment to Correct the the Assignee's Name Previously Recorded on Reel 015369 Frame 0788. Assignor(S) Hereby Confirms the Entire Right, Title, and Interest....
Apr 19, 2012
From: MAGRATH, ANTHONY J.
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 028078/0847 →
Change of Name
Apr 1, 2015
From: WOLFSON MICROELECTRONICS PLC
To: WOLFSON MICROELECTRONICS LTD
Reel/Frame 035353/0558 →
Change of Name
Apr 1, 2015
From: WOLFSON MICROELECTRONICS LTD
To: CIRRUS LOGIC INTERNATIONAL (UK) LTD.
Reel/Frame 035353/0413 →
Change of Name
Apr 1, 2015
From: WOLFSON MICROELECTRONICS LTD
To: WOLFSON MICROELECTRONICS PLC
Reel/Frame 035353/0297 →