Inventor
ALLEN DANIEL JOHN
US20 patents
⚠️ This page may combine multiple inventors who share the name “ALLEN DANIEL JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIRRUS LOGIC INC
15 patentsUS7808324B1Oct 5, 2010
Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit
CIRRUS LOGIC INC80 citations97
US9391576B1Jul 12, 2016
Enhancement of dynamic range of audio signal path
CIRRUS LOGIC INC39 citations94
US7830209B1Nov 9, 2010
Signal level selected efficiency in a charge pump power supply for a consumer device audio power output stage
CIRRUS LOGIC INC37 citations92
US7167119B1Jan 23, 2007
Delta-sigma modulators with double sampling input networks and systems using the same
CIRRUS LOGIC INC35 citations89
US9479868B2Oct 25, 2016
Systems and methods for detection of load impedance of a transducer device coupled to an audio device
CIRRUS LOGIC INC6 citations84
US9831843B1Nov 28, 2017
Opportunistic playback state changes for audio devices
CIRRUS LOGIC INC17 citations83
US9293986B2Mar 22, 2016
Reducing kickback current to power supply during charge pump mode transitions
CIRRUS LOGIC INC8 citations81
US9287839B1Mar 15, 2016
Feedback loop for direct current (DC) offset removal
CIRRUS LOGIC INC10 citations79
US9648414B1May 9, 2017
Systems and methods for controlling an audio signal path using redundant uninterruptable clock
CIRRUS LOGIC INC5 citations73
US9578417B2Feb 21, 2017
Systems and methods for detection of load impedance of a transducer device coupled to an audio device
CIRRUS LOGIC INC2 citations73
US9705458B1Jul 11, 2017
Energy-efficient consumer device audio power output stage with gain control
CIRRUS LOGIC INC3 citations72
US9634621B1Apr 25, 2017
Charge-pump power supply with voltage-headroom-dependent supply voltage
CIRRUS LOGIC INC5 citations72
US9112467B1Aug 18, 2015
Energy-efficient consumer device audio power output stage
CIRRUS LOGIC INC4 citations72
US9479869B2Oct 25, 2016
Systems and methods for detection of load impedance of a transducer device coupled to an audio device
CIRRUS LOGIC INC0 citations52
US9276594B2Mar 1, 2016
Noise management method and circuit for asynchronous signals
CIRRUS LOGIC INC0 citations50
CIRRUS LOGIC INT SEMICONDUCTOR LTD
2 patentsUS9986351B2May 29, 2018
Direct current (DC) and/or alternating current (AC) load detection for audio codec
CIRRUS LOGIC INT SEMICONDUCTOR LTD1 citations50
US9800984B2Oct 24, 2017
Identification of a load with a search algorithm that controls application of signals to the load and a reference generator
CIRRUS LOGIC INT SEMICONDUCTOR LTD0 citations50