Inventor
Kostadin Dimitrov Djordjev
Inventor
San Jose, CA, US
Overview
Patents· 43 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Kprimary
G06KGraphical data reading16%
G06VImage or video recognition or understanding16%
G02BOptical elements, systems or apparatus10%
G06FElectric digital data processing10%
G01SRadio direction-finding8%
H01LSemiconductor devices5%
H10NElectric solid-state devices not otherwise provided for4%
B81BMicrostructural devices or systems, e.g. micromechanical devices4%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems4%
G09GArrangements or circuits for control of indicating devices using static means to present variable information4%
PatentTitleYear
11,126,814Ultrasonic fingerprint sensor with flexible substrate202111,087,109Apparatus and method for ultrasonic fingerprint and force sensing202111,087,107Ultrasonic sensor with bi-poled or uni-poled transmitter/receiver202111,062,010Liveness sensing and authentication with an ultrasonic sensor system202111,003,884Fingerprint sensor device and methods thereof202110,956,709Anti-spoofing devices and methods involving acoustic shear waves202110,943,084Multifunctional, multimodal, under-display sensor202110,929,636Ultrasonic fingerprint sensor with electrically nonconductive acoustic layer202110,891,458Module architecture for large area ultrasonic fingerprint sensor202110,831,290Stylus-tracking piezoelectric sensor202010,699,095Dual-mode capacitive and ultrasonic fingerprint and touch sensor202010,503,948Multi-spectral ultrasonic imaging201910,497,748Integrated piezoelectric micromechanical ultrasonic transducer pixel and array201910,274,590Ultrasonic imaging with acoustic resonant cavity201910,254,901Method and integrated circuit to generate a signal to operate a sensor array201910,127,425Dual-mode capacitive and ultrasonic fingerprint and touch sensor201810,067,229Receive-side beam forming for an ultrasonic image sensor201810,036,734Ultrasonic sensor with bonded piezoelectric layer201810,001,552Three-port piezoelectric ultrasonic transducer20189,990,089Sensor array with receiver bias electrode20189,945,818Ultrasonic authenticating button20189,946,914Liveness detection via ultrasonic ridge-valley tomography20189,817,108'Ultrasonic imaging with acoustic resonant cavity'20179,551,783'Display with backside ultrasonic sensor array'20179,524,415'Test techniques for assessing ultrasonic fingerprint sensors'20169,372,338'Multi-state interferometric modulator with large stable range of motion'20169,323,393'Display with peripherally configured ultrasonic biometric sensor'20168,848,294'Method and structure capable of changing color saturation'20148,803,861'Electromechanical systems device'20148,775,107'Measurement and apparatus for electrical measurement of electrical drive parameters for a MEMS based display'20148,560,258'Measurement and apparatus for electrical measurement of electrical drive parameters for a MEMS based display'20138,446,674'Method and structure capable of changing color saturation'20138,355,883'Measurement and apparatus for electrical measurement of electrical drive parameters for a MEMS based display'20138,204,703'Measurement and apparatus for electrical measurement of electrical drive parameters for a MEMS based display'20128,111,262'Interferometric modulator displays with reduced color sensitivity'20128,068,269'Microelectromechanical device with spacing layer'20117,760,979'System and method for low loss waveguide bends'20107,688,452'Determination of interferometric modulator mirror curvature and airgap variation using digital photographs'20107,612,933'Microelectromechanical device with spacing layer'20097,577,172'Active region of a light emitting device optimized for increased modulation speed operation'20097,388,704'Determination of interferometric modulator mirror curvature and airgap variation using digital photographs'20087,072,531'Gain-assisted electroabsorption modulators'20066,920,253'Optical modulator based on a microdisk resonator'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2009Patents assigned to AGILENT TECHNOLOGIES INC (3)· patent assignee history
2005–2006Based in Cupertino, CA, US· patent location history
2008–2016Patents assigned to QUALCOMM MEMS TECHNOLOGIES INC (11)· patent assignee history
2008–2021Based in San Jose, CA, US· patent location history
2011–2014Patents assigned to DJORDJEV KOSTADIN (7)· patent assignee history
2012–2014Patents assigned to GOVIL ALOK (4)· patent assignee history
2016–2021Patents assigned to QUALCOMM INC (25)· patent assignee history
2019–2021Based in Los Gatos, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| QUALCOMM INC | 25 | 2016–2021 |
| QUALCOMM MEMS TECHNOLOGIES INC | 11 | 2008–2016 |
| DJORDJEV KOSTADINself | 7 | 2011–2014 |
| GOVIL ALOK | 4 | 2012–2014 |
| AGILENT TECHNOLOGIES INC | 3 | 2005–2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 30 | 2008–2021 |
| Los Gatos, California, US | 11 | 2019–2021 |
| Cupertino, California, US | 2 | 2005–2006 |