Inventor
ATHAS WILLIAM C
US76 patents
⚠️ This page may combine multiple inventors who share the name “ATHAS WILLIAM C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APPLE INC
13 patentsUS7681013B1Mar 16, 2010
Method for variable length decoding using multiple configurable look-up tables
APPLE INC75 citations98
US7430676B2Sep 30, 2008
Method and apparatus for changing the clock frequency of a memory system
APPLE INC27 citations93
US7340622B2Mar 4, 2008
Method and apparatus for selectively increasing the operating speed of an electronic circuit
APPLE INC25 citations92
US9071071B2Jun 30, 2015
Diffusion-limited adaptive battery charging
APPLE INC11 citations84
US8346299B2Jan 1, 2013
Dynamic thermal control for wireless transceivers
APPLE INC5 citations84
US7689846B1Mar 30, 2010
Method and apparatus for increasing the operating frequency of an electronic circuit
APPLE INC9 citations84
US9917440B2Mar 13, 2018
Reconfigurable multiple-output power-delivery system
APPLE INC10 citations82
US9831672B2Nov 28, 2017
Power delivery in a multiple-output system
APPLE INC9 citations82
US10044210B2Aug 7, 2018
Diffusion-limited adaptive battery charging
APPLE INC4 citations73
US12254147B2Mar 18, 2025
Electronic device display with array of discrete light-emitting diodes
APPLE INC0 citations63
US11669178B2Jun 6, 2023
Electronic device display with array of discrete light-emitting diodes
APPLE INC0 citations63
US7982548B2Jul 19, 2011
Resonant oscillator with oscillation-startup circuitry
APPLE INC6 citations63
US7948187B2May 24, 2011
Electronically controlling acoustic energy from piezoelectric transformers
APPLE INC3 citations63
UNIV SOUTHERN CALIFORNIA
13 patentsUSRE37552EFeb 19, 2002
System and method for power-efficient charging and discharging of a capacitive load from a single source
UNIV SOUTHERN CALIFORNIA42 citations96
US5559478ASep 24, 1996
Highly efficient, complementary, resonant pulse generation
UNIV SOUTHERN CALIFORNIA92 citations96
US5473526ADec 5, 1995
System and method for power-efficient charging and discharging of a capacitive load from a single source
UNIV SOUTHERN CALIFORNIA68 citations96
US7202712B2Apr 10, 2007
Multiphase resonant pulse generators
UNIV SOUTHERN CALIFORNIA43 citations93
US7005893B1Feb 28, 2006
High-performance clock-powered logic
UNIV SOUTHERN CALIFORNIA22 citations90
USRE38918EDec 13, 2005
System and method for power-efficient charging and discharging of a capacitive load from a single source
UNIV SOUTHERN CALIFORNIA13 citations84
US6985142B1Jan 10, 2006
Power-efficient, pulsed driving of capacitive loads to controllable voltage levels
UNIV SOUTHERN CALIFORNIA12 citations81
USRE42066EJan 25, 2011
System and method for power-efficient charging and discharging of a capacitive load from a single source
UNIV SOUTHERN CALIFORNIA5 citations74
US6946868B2Sep 20, 2005
Line reflection reduction with energy-recovery driver
UNIV SOUTHERN CALIFORNIA7 citations73
US6696853B2Feb 24, 2004
Line reflection reduction with energy-recovery driver
UNIV SOUTHERN CALIFORNIA4 citations73
US6486697B1Nov 26, 2002
Line reflection reduction with energy-recovery driver
UNIV SOUTHERN CALIFORNIA6 citations73
US7663618B2Feb 16, 2010
Power-efficient, pulsed driving of capacitive loads to controllable voltage levels
UNIV SOUTHERN CALIFORNIA7 citations71
US7075347B2Jul 11, 2006
Multiphase resonant pulse generators
UNIV SOUTHERN CALIFORNIA4 citations63
APPLE COMPUTER
9 patentsUS6661355B2Dec 9, 2003
Methods and apparatus for constant-weight encoding & decoding
APPLE COMPUTER190 citations99
US7171570B2Jan 30, 2007
Method and apparatus for selectively increasing the operating speed of an electronic circuit
APPLE COMPUTER55 citations96
US6844833B2Jan 18, 2005
Methods and apparatus for constant-weight encoding and decoding
APPLE COMPUTER19 citations93
US6813719B2Nov 2, 2004
Method and apparatus for increasing the operating frequency of an electronic circuit
APPLE COMPUTER19 citations93
US6848032B2Jan 25, 2005
Pipelining cache-coherence operations in a shared-memory multiprocessing system
APPLE COMPUTER20 citations92
US6966008B2Nov 15, 2005
Method and apparatus for increasing the operating frequency of an electronic circuit
APPLE COMPUTER8 citations74
US7098817B2Aug 29, 2006
Methods and apparatus for constant-weight encoding and decoding
APPLE COMPUTER1 citations63
US6889235B2May 3, 2005
Method and apparatus for quantifying the number of identical consecutive digits within a string
APPLE COMPUTER6 citations63
US6867631B1Mar 15, 2005
Synchronous frequency convertor for timebase signal generation
APPLE COMPUTER4 citations63
ATHAS WILLIAM C
5 patentsUS8933665B2Jan 13, 2015
Balancing voltages between battery banks
ATHAS WILLIAM C9 citations84
US7872539B1Jan 18, 2011
Energy efficient waveform generation using tuned resonators
ATHAS WILLIAM C9 citations84
US7479838B1Jan 20, 2009
Energy efficient waveform generation using tuned resonators
ATHAS WILLIAM C9 citations84
US8541999B2Sep 24, 2013
Controlling power loss in a switched-capacitor power converter
ATHAS WILLIAM C5 citations73
US7782149B1Aug 24, 2010
Energy efficient waveform generation using tuned resonators
ATHAS WILLIAM C1 citations63
GREENING THOMAS C
3 patentsUS8754611B2Jun 17, 2014
Diffusion-limited adaptive battery charging
GREENING THOMAS C24 citations92
US8575896B2Nov 5, 2013
Parallel battery architecture with shared bidirectional converter
GREENING THOMAS C10 citations83
US9331513B2May 3, 2016
Adaptive surface concentration battery charging
GREENING THOMAS C6 citations72
DORSEY JOHN G
2 patentsUNGAR P JEFFREY
1 patentCALIFORNIA INST OF TECHN
1 patentMICHALSKE STEVEN C
1 patentKANGAS MIIKKA M
1 patentMILLET TIMOTHY J
1 patentShowing the top 50 of 76 patents by PatentIndex Score.