Inventor
RAMALHO MICHAEL A
US59 patents
⚠️ This page may combine multiple inventors who share the name “RAMALHO MICHAEL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CISCO TECH INC
32 patentsUS7284068B1Oct 16, 2007
Technique for providing multi-homing capability in data networks
CISCO TECH INC61 citations98
US7633879B2Dec 15, 2009
Method and apparatus for discovering the incoming media path for an internet protocol media session
CISCO TECH INC10 citations84
US7408918B1Aug 5, 2008
Methods and apparatus for lossless compression of delay sensitive signals
CISCO TECH INC13 citations84
US10141973B1Nov 27, 2018
Endpoint proximity pairing using acoustic spread spectrum token exchange and ranging information
CISCO TECH INC12 citations83
US9237226B2Jan 12, 2016
Controlling echo in a wideband voice conference
CISCO TECH INC11 citations83
US10825460B1Nov 3, 2020
Audio fingerprinting for meeting services
CISCO TECH INC6 citations81
US10003377B1Jun 19, 2018
Spread spectrum acoustic communication techniques
CISCO TECH INC9 citations80
US9948561B2Apr 17, 2018
Setting delay precedence on queues before a bottleneck link based on flow characteristics
CISCO TECH INC3 citations73
US9591148B2Mar 7, 2017
Detecting proximity of devices based on transmission of inaudible sound signatures in the speech band
CISCO TECH INC6 citations73
US9426335B2Aug 23, 2016
Preserving synchronized playout of auxiliary audio transmission
CISCO TECH INC3 citations72
US10601459B1Mar 24, 2020
Efficient handling of clock offset in spread spectrum decoders
CISCO TECH INC2 citations70
US10530417B2Jan 7, 2020
Spread spectrum acoustic communication techniques
CISCO TECH INC3 citations69
US10630749B2Apr 21, 2020
Timely delivery of real-time media problem when TCP must be used
CISCO TECH INC3 citations68
US9667686B2May 30, 2017
System and method for improving audio quality during web conferences over low-speed network connections
CISCO TECH INC4 citations68
US9363480B2Jun 7, 2016
Obtaining replay of audio during a conference session
CISCO TECH INC2 citations63
US7602817B2Oct 13, 2009
Low deviation field modulation for transfer of information
CISCO TECH INC4 citations63
US7328015B2Feb 5, 2008
Multiple personality telephony devices
CISCO TECH INC3 citations63
USRE49288ENov 8, 2022
Endpoint proximity pairing using acoustic spread spectrum token exchange and ranging information
CISCO TECH INC0 citations62
US7814151B2Oct 12, 2010
Wirelessly-enabled identification of digital media generated at an event
CISCO TECH INC3 citations62
US7483701B2Jan 27, 2009
System and method for handling media in a seamless handoff environment
CISCO TECH INC5 citations62
US11488612B2Nov 1, 2022
Audio fingerprinting for meeting services
CISCO TECH INC0 citations59
US11005521B2May 11, 2021
Efficient handling of clock offset in spread spectrum decoders
CISCO TECH INC0 citations59
US9351024B2May 24, 2016
Managing the bandwidth of a communication session
CISCO TECH INC2 citations59
US11641387B2May 2, 2023
Timely delivery of real-time media problem when TCP must be used
CISCO TECH INC0 citations58
US10354660B2Jul 16, 2019
Audio frame labeling to achieve unequal error protection for audio frames of unequal importance
CISCO TECH INC1 citations58
US11164577B2Nov 2, 2021
Conversation aware meeting prompts
CISCO TECH INC1 citations57
US11228402B2Jan 18, 2022
Techniques for informing communications networks of desired packet transport treatment
CISCO TECH INC0 citations56
US8929263B2Jan 6, 2015
Echo mitigation in the presence of variable delays due to adaptive jitter buffers
CISCO TECH INC2 citations55
US11070941B2Jul 20, 2021
Systems and methods for providing proximity as a service in a heterogeneous network of independent system components
CISCO TECH INC0 citations52
US8018917B2Sep 13, 2011
System and method for facilitating network performance analysis
CISCO TECH INC1 citations52
US7852999B2Dec 14, 2010
Classifying signals at a conference bridge
CISCO TECH INC1 citations52
US9088530B2Jul 21, 2015
Maximizing bottleneck link utilization under constraint of minimizing queuing delay for targeted delay-sensitive traffic
CISCO TECH INC0 citations48
RAMALHO MICHAEL A
6 patentsUS8582465B2Nov 12, 2013
System and method for facilitating network performance analysis
RAMALHO MICHAEL A2 citations62
US9025779B2May 5, 2015
System and method for using endpoints to provide sound monitoring
RAMALHO MICHAEL A2 citations58
US8838828B2Sep 16, 2014
Managing the bandwidth of a communication session
RAMALHO MICHAEL A2 citations58
US8948058B2Feb 3, 2015
System and method for improving audio quality during web conferences over low-speed network connections
RAMALHO MICHAEL A2 citations57
US12526316B2Jan 13, 2026
Systems and methods for an acoustic communication as an out-of-band factor in a multi-factor authentication framework
RAMALHO MICHAEL A0 citations51
US8600750B2Dec 3, 2013
Speaker-cluster dependent speaker recognition (speaker-type automated speech recognition)
RAMALHO MICHAEL A1 citations49
FRAUENTHAL JAMES C
4 patentsUS8238548B2Aug 7, 2012
Controlling echo during double-talk in a voice conference
FRAUENTHAL JAMES C7 citations80
US8428247B2Apr 23, 2013
Echo mitigation in a conference call
FRAUENTHAL JAMES C3 citations60
US8923509B2Dec 30, 2014
Controlling echo in a wideband voice conference
FRAUENTHAL JAMES C0 citations50
US8126160B2Feb 28, 2012
Use of non-audible band to relay information for echo cancellation in a distributed media system
FRAUENTHAL JAMES C1 citations50
BEGEN ALI C
2 patentsCISCO TECH IND
1 patentJAGADEESAN RAMANATHAN T
1 patentPROMETHEUS INC
1 patentTATUM TODD C
1 patentSKRABUTENAS GARY ALAN
1 patentWING DANIEL G
1 patentShowing the top 50 of 59 patents by PatentIndex Score.