Inventor
TSO ROBERT
US38 patents
⚠️ This page may combine multiple inventors who share the name “TSO ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIRF TECH INC
14 patentsUS6961019B1Nov 1, 2005
Method and apparatus for reducing GPS receiver jamming during transmission in a wireless receiver
SIRF TECH INC134 citations97
US6856794B1Feb 15, 2005
Monolithic GPS RF front end integrated circuit
SIRF TECH INC45 citations95
US6675003B1Jan 6, 2004
L1/L2 GPS receiver
SIRF TECH INC58 citations95
US6931233B1Aug 16, 2005
GPS RF front end IC with programmable frequency synthesizer for use in wireless phones
SIRF TECH INC55 citations94
US5917383AJun 29, 1999
Compact voltage controlled ring oscillator with quadrature outputs
SIRF TECH INC57 citations93
US7047023B1May 16, 2006
GPS RF front end IC with frequency plan for improved integrability
SIRF TECH INC24 citations92
US7035613B2Apr 25, 2006
L1/L2 GPS receiver
SIRF TECH INC19 citations91
US7639724B2Dec 29, 2009
RF converter with multiple mode frequency synthesizer compatible with a 48 Fo GPS baseband processor
SIRF TECH INC13 citations83
US7933627B2Apr 26, 2011
GPS RF front end IC with frequency plan for improved integrability
SIRF TECH INC2 citations63
US7369830B2May 6, 2008
Monolithic GPS RF front end integrated circuit
SIRF TECH INC2 citations62
US7751791B2Jul 6, 2010
L1/L2 GPS receiver
SIRF TECH INC2 citations61
US7512385B2Mar 31, 2009
GPS RF front end IC with programmable frequency synthesizer for use in wireless phones
SIRF TECH INC2 citations61
US7634025B2Dec 15, 2009
Serial radio frequency to baseband interface with programmable clock
SIRF TECH INC3 citations60
US7388939B2Jun 17, 2008
Fractional-R frequency synthesizer
SIRF TECH INC4 citations60
AMAZON TECH INC
11 patentsUS10609344B1Mar 31, 2020
Audio/video recording and communication doorbell devices including transistor assemblies, and associated systems and methods
AMAZON TECH INC19 citations94
US10529206B2Jan 7, 2020
Security devices and associated audio/video communication methods
AMAZON TECH INC14 citations85
US10638097B1Apr 28, 2020
Audio/video recording and communication doorbell devices
AMAZON TECH INC7 citations84
US10834366B1Nov 10, 2020
Audio/video recording and communication doorbell devices with power control circuitry
AMAZON TECH INC7 citations79
US11647165B1May 9, 2023
Audio/video recording and communication doorbell devices including transistor assemblies, and associated systems and methods
AMAZON TECH INC2 citations73
US10999505B2May 4, 2021
Low-power-consumption audio/video recording and communication doorbell
AMAZON TECH INC1 citations72
US10939040B2Mar 2, 2021
Low-power-consumption audio/video recording and communication doorbell
AMAZON TECH INC1 citations72
US10554887B2Feb 4, 2020
Low-power-consumption audio/video recording and communication doorbell
AMAZON TECH INC1 citations72
US11417184B2Aug 16, 2022
Security devices and associated audio/video communication methods
AMAZON TECH INC1 citations62
US11102457B1Aug 24, 2021
Audio/video recording and communication doorbell devices
AMAZON TECH INC0 citations62
US10672237B2Jun 2, 2020
Doorbell sound output device controllers, doorbell switches, and associated systems and methods
AMAZON TECH INC0 citations52
RING INC
4 patentsUS10070058B2Sep 4, 2018
Low-power-consumption audio/video recording and communication doorbell
RING INC10 citations92
US10304296B2May 28, 2019
Doorbell sound output device controllers, doorbell switches, and associated systems and methods
RING INC9 citations84
US10418672B2Sep 17, 2019
Combination heatsink and battery heater for electronic devices
RING INC11 citations79
US11082591B2Aug 3, 2021
Solar-charging mounting bracket for audio/video recording and communication devices
RING INC0 citations52