Inventor
CASTOR DOUGLAS R
US34 patents
⚠️ This page may combine multiple inventors who share the name “CASTOR DOUGLAS R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INTERDIGITAL PATENT HOLDINGS INC
11 patentsUS11432285B2Aug 30, 2022
Wireless operation in unlicensed spectrum
INTERDIGITAL PATENT HOLDINGS INC2 citations73
US10038501B2Jul 31, 2018
Method and apparatus for reduced flicker visible light communications (VLC)
INTERDIGITAL PATENT HOLDINGS INC2 citations73
US9882684B2Jan 30, 2018
Method and apparatus for operating supplementary cells in licensed exempt spectrum
INTERDIGITAL PATENT HOLDINGS INC3 citations73
US9788227B2Oct 10, 2017
Method and apparatus for integrating different radio access technologies using carrier aggregation
INTERDIGITAL PATENT HOLDINGS INC2 citations73
US9722701B2Aug 1, 2017
Method and apparatus for discovery and association for visible light communications (VLC)
INTERDIGITAL PATENT HOLDINGS INC3 citations73
US11337160B2May 17, 2022
Method and apparatus for data-splitting transmission from multiple sites
INTERDIGITAL PATENT HOLDINGS INC2 citations72
US12414096B2Sep 9, 2025
Wireless operation in unlicensed spectrum
INTERDIGITAL PATENT HOLDINGS INC0 citations62
US12177787B2Dec 24, 2024
Method and apparatus for data-splitting transmission from multiple sites
INTERDIGITAL PATENT HOLDINGS INC0 citations62
US10321347B2Jun 11, 2019
Method and apparatus for integrating different radio access technologies using carrier aggregation
INTERDIGITAL PATENT HOLDINGS INC0 citations52
US10153870B2Dec 11, 2018
Method and apparatus for operating supplementary cells in licensed exempt spectrum
INTERDIGITAL PATENT HOLDINGS INC0 citations52
US9807782B2Oct 31, 2017
Method and apparatus for a multi-radio access technology layer for splitting downlink-uplink over different radio access technologies
INTERDIGITAL PATENT HOLDINGS INC1 citations52
INTERDIGITAL TECH CORP
10 patentsUS7492722B2Feb 17, 2009
Wireless communication method and apparatus for adaptively biasing channel quality indicators to maintain a desired block error rate
INTERDIGITAL TECH CORP16 citations92
US8996078B2Mar 31, 2015
UMTS FDD modem optimized for high data rate applications
INTERDIGITAL TECH CORP6 citations83
US7496074B2Feb 24, 2009
Software parameterizable control blocks for use in physical layer processing
INTERDIGITAL TECH CORP12 citations81
US11470491B2Oct 11, 2022
Method and apparatus for adjusting channel quality indicator feedback period to increase uplink capacity
INTERDIGITAL TECH CORP1 citations73
US10694414B2Jun 23, 2020
Method and apparatus for adjusting channel quality indicator feedback period to increase uplink capacity
INTERDIGITAL TECH CORP2 citations73
US7813312B2Oct 12, 2010
Method and system for preventing high speed downlink packet access transmissions loss
INTERDIGITAL TECH CORP7 citations72
US7515564B2Apr 7, 2009
Physical layer processing for a wireless communication system using code division multiple access
INTERDIGITAL TECH CORP3 citations59
US9479314B2Oct 25, 2016
Method and apparatus for adjusting channel quality indicator feedback period to increase uplink capacity
INTERDIGITAL TECH CORP0 citations52
US7899016B2Mar 1, 2011
Physical layer processing for a wireless communication system using code division multiple access
INTERDIGITAL TECH CORP0 citations49
US7697487B2Apr 13, 2010
Physical layer processing for a wireless communication system using code division multiple access
INTERDIGITAL TECH CORP0 citations49
CASTOR DOUGLAS R
3 patentsUS8639124B2Jan 28, 2014
Method and apparatus for dimming with rate control for visible light communications (VLC)
CASTOR DOUGLAS R10 citations83
US8295891B2Oct 23, 2012
UMTS FDD modem optimized for high data rate applications
CASTOR DOUGLAS R4 citations60
US9288525B2Mar 15, 2016
Inter-device communications using visible light
CASTOR DOUGLAS R1 citations49
INTERDIGITAL PATENT HOLDINGS
2 patentsUS9294926B2Mar 22, 2016
Method and apparatus for integrating different radio access technologies using carrier aggregation
INTERDIGITAL PATENT HOLDINGS31 citations94
US9088361B2Jul 21, 2015
Method and apparatus for dimming with rate control for visible light communications (VLC)
INTERDIGITAL PATENT HOLDINGS5 citations84