US Patent No: 8,046,041

Number of patents in Portfolio can not be more than 2000

Signal processing apparatus

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ALSO PUBLISHED AS: 20080004514
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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present disclosure describes a method and an apparatus for analyzing measured signals using various processing techniques. In certain embodiments, the measured signals are physiological signals. In certain embodiments, the measurements relate to blood constituent measurements including blood oxygen saturation.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MASIMO CORPORATIONIRVINE, CA293

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Diab, Mohamed K Laguna Niguel, CA 157 16639
Elfadel, Ibrahim M Laguna Niguel, CA 104 5268
Kiani-Azarbayjany, Esmaiel Laguna Niguel, CA 72 10537
McCarthy, Rex J Mission Viejo, CA 48 5123
Smith, Robert A Corona, CA 218 8761
Weber, Walter M Los Angeles, CA 124 10656

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MASIMO CORPORATION (188)
4,960,128 Method and apparatus for continuously and non-invasively measuring the blood pressure of a patient 232 1988
5,163,438 Method and apparatus for continuously and noninvasively measuring the blood pressure of a patient 238 1990
5,431,170 Pulse responsive device 447 1992
5,494,043 Arterial sensor 303 1993
5,337,744 Low noise finger cot probe 390 1993
5,490,505 Signal processing apparatus 504 1993
5,533,511 Apparatus and method for noninvasive blood pressure measurement 318 1994
5,590,649 Apparatus and method for measuring an induced perturbation to determine blood pressure 250 1994
D361840 Stethoscope head 170 1994
D362063 Stethoscope headset 167 1994
D363120 Stethoscope ear tip 172 1994
5,482,036 Signal processing apparatus and method 460 1994
5,452,717 Finger-cot probe 378 1994
5,632,272 Signal processing apparatus 475 1994
5,638,818 Low noise optical probe 364 1994
5,758,644 Manual and automatic probe calibration 453 1995
5,769,785 Signal processing apparatus and method 397 1995
5,645,440 Patient cable connector 348 1995
5,782,757 Low-noise optical probes 404 1995
D393830 Patient cable connector 337 1995
5,810,734 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 232 1995
5,830,131 Apparatus and method for measuring an induced perturbation to determine a physical condition of the human arterial system 258 1995
5,833,618 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 244 1995
5,685,299 Signal processing apparatus 384 1995
5,904,654 Exciter-detector unit for measuring physiological parameters 243 1996
5,785,659 Automatically activated blood pressure measurement device 230 1996
5,823,950 Manual and automatic probe calibration 335 1996
6,088,607 Low noise optical probe 402 1997
5,934,925 Patient cable connector 341 1997
6,002,952 Signal processing apparatus and method 446 1997
6,157,850 Signal processing apparatus 392 1997
5,890,929 Shielded medical connector 329 1997
6,081,735 Signal processing apparatus 534 1997
6,263,222 Signal processing apparatus 413 1997
6,184,521 Photodiode detector with integrated noise shielding 338 1998
5,919,134 Method and apparatus for demodulating signals in a pulse oximetry system 353 1998
6,011,986 Manual and automatic probe calibration 398 1998
5,995,855 Pulse oximetry sensor adapter 381 1998
6,525,386 Non-protruding optoelectronic lens 350 1998
5,997,343 Patient cable sensor switch 324 1998
6,229,856 Method and apparatus for demodulating signals in a pulse oximetry system 335 1998
6,067,462 Signal processing apparatus and method 389 1998
6,256,523 Low-noise optical probes 387 1998
6,036,642 Signal processing apparatus and method 371 1998
7,376,453 Signal processing apparatus 128 1998
7,328,053 Signal processing apparatus 134 1998
6,236,872 Signal processing apparatus 359 1998
6,144,868 Reusable pulse oximeter probe and disposable bandage apparatus 289 1999
6,334,065 Stereo pulse oximeter 382 1999
6,285,896 Fetal pulse oximetry sensor 329 1999
6,321,100 Reusable pulse oximeter probe with disposable liner 277 1999
6,349,228 Pulse oximetry sensor adapter 340 1999
6,632,181 Rapid non-invasive blood pressure measuring device 283 1999
6,343,224 Reusable pulse oximeter probe and disposable bandage apparatus 281 1999
6,580,086 Shielded optical probe and method 373 1999
6,943,348 System for detecting injection holding material 187 1999
6,206,830 Signal processing apparatus and method 355 1999
6,165,005 Patient cable sensor switch 319 1999
6,377,829 Resposable pulse oximetry sensor 362 1999
6,152,754 Circuit board based cable connector 349 1999
6,463,311 Plethysmograph pulse recognition processor 330 1999
6,606,511 Pulse oximetry pulse indicator 363 2000
6,515,273 System for indicating the expiration of the useful operating life of a pulse oximetry sensor 342 2000
6,584,336 Universal/upgrading pulse oximeter 374 2000
6,360,114 Pulse oximeter probe-off detector 359 2000
6,699,194 Signal processing apparatus and method 369 2000
6,430,525 Variable mode averager 325 2000
6,526,300 Pulse oximeter probe-off detection system 318 2000
6,470,199 Elastic sock for positioning an optical probe 335 2000
6,697,656 Pulse oximetry sensor compatible with multiple pulse oximetry systems 315 2000
6,770,028 Dual-mode pulse oximeter 343 2000
6,519,487 Reusable pulse oximeter probe and disposable bandage apparatus 280 2000
6,280,213 Patient cable connector 338 2000
6,542,764 Pulse oximeter monitor for expressing the urgency of the patient's condition 325 2000
6,643,530 Method and apparatus for demodulating signals in a pulse oximetry system 321 2000
6,501,975 Signal processing apparatus and method 382 2001
6,684,091 Reusable pulse oximeter probe and disposable bandage method 272 2001
6,541,756 Shielded optical probe having an electrical connector 343 2001
6,388,240 Shielded optical probe and method having a longevity indication 365 2001
6,684,090 Pulse oximetry data confidence indicator 384 2001
6,792,300 Low-noise optical probes for reducing light piping 316 2001
6,595,316 Tension-adjustable mechanism for stethoscope earpieces 187 2001
6,721,585 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 271 2001
6,597,933 Pulse oximetry sensor adapter 329 2001
6,678,543 Optical probe and positioning wrap 389 2001
6,745,060 Signal processing apparatus 345 2001
6,650,917 Signal processing apparatus 372 2001
6,671,531 Sensor wrap including foldable applicator 348 2001
6,654,624 Pulse oximeter probe-off detector 354 2001
6,760,607 Ribbon cable substrate pulse oximetry sensor 301 2001
6,714,804 Stereo pulse oximeter 331 2001
6,852,083 System and method of determining whether to recalibrate a blood pressure monitor 221 2002
6,658,276 Pulse oximeter user interface 349 2002
RE38492 Signal processing apparatus and method 327 2002
6,725,075 Resposable pulse oximetry sensor 330 2002
6,985,764 Flex circuit shielded optical sensor 282 2002
6,697,658 Low power pulse oximeter 349 2002
6,661,161 Piezoelectric biological sound monitor with printed circuit board 199 2002
RE38476 Signal processing apparatus 328 2002
6,999,904 Variable indication estimator 185 2002
6,735,459 Reusable pulse oximeter probe and disposable bandage apparatus 276 2002
6,813,511 Low-noise optical probes for reducing ambient noise 324 2002
6,816,741 Plethysmograph pulse recognition processor 316 2002
7,245,953 Reusable pulse oximeter probe and disposable bandage apparatii 155 2002
6,934,570 Physiological sensor combination 299 2002
6,826,419 Signal processing apparatus and method 317 2002
6,830,711 Mold tool for an optoelectronic element 305 2003
7,067,893 Optoelectronic element with a non-protruding lens 251 2003
7,225,006 Attachment and optical probe 215 2003
6,822,564 Parallel measurement alarm processor 332 2003
6,950,687 Isolation and communication element for a resposable pulse oximetry sensor 293 2003
7,015,451 Power supply rail controller 174 2003
6,861,639 Systems and methods for indicating an amount of use of a sensor 307 2003
6,771,994 Pulse oximeter probe-off detection system 316 2003
6,850,788 Physiological measurement communications adapter 303 2003
7,509,494 Interface cable 87 2003
7,132,641 Shielded optical probe having an electrical connector 254 2003
7,428,432 Systems and methods for acquiring calibration data usable in a pulse oximeter 108 2003
6,993,371 Pulse oximetry sensor adaptor 309 2003
7,096,054 Low noise optical housing 245 2003
7,341,559 Pulse oximetry ear sensor 141 2003
6,898,452 Stereo pulse oximeter 290 2003
7,274,955 Parameter compensated pulse oximeter 130 2003
7,254,433 Signal processing apparatus 238 2003
7,496,393 Signal processing apparatus 89 2003
7,096,052 Optical probe including predetermined emission wavelength based on patient type 237 2003
6,939,305 Rapid non-invasive blood pressure measuring device 185 2003
7,003,339 Method and apparatus for demodulating signals in a pulse oximetry system 268 2003
7,142,901 Parameter compensated physiological monitor 236 2003
7,471,969 Pulse oximeter probe-off detector 94 2003
6,996,427 Pulse oximetry data confidence indicator 329 2003
7,039,449 Resposable pulse oximetry sensor 273 2003
7,496,391 Manual and automatic probe calibration 86 2004
7,469,157 Signal processing apparatus 87 2004
7,295,866 Low power pulse oximeter 209 2004
7,471,971 Signal processing apparatus and method 88 2004
7,215,984 Signal processing apparatus 297 2004
7,499,741 Signal processing apparatus and method 95 2004
7,530,955 Signal processing apparatus 86 2004
7,500,950 Multipurpose sensor port 90 2004
7,530,949 Dual-mode pulse oximeter 106 2004
7,254,431 Physiological parameter tracking system 127 2004
7,024,233 Pulse oximetry data confidence indicator 281 2004
7,483,730 Low-noise optical probes for reducing ambient noise 87 2004
7,254,434 Variable pressure reusable sensor 223 2004
7,044,918 Plethysmograph pulse recognition processor 178 2004
7,030,749 Parallel measurement alarm processor 203 2004
7,483,729 Pulse oximeter access apparatus and method 86 2004
7,373,193 Pulse oximetry data capture system 143 2004
7,383,070 Signal processing apparatus 131 2004
7,280,858 Pulse oximetry sensor 226 2005
7,373,194 Signal component processor 116 2005
7,371,981 Connector switch 116 2005
D554263 Portable patient monitor 129 2005
D566282 Stand for a portable patient monitor 113 2005
6,979,812 Systems and methods for indicating an amount of use of a sensor 260 2005
2005/0209,517 Signal processing apparatus 39 2005
7,438,683 Application identification sensor 99 2005
7,415,297 Physiological parameter system 111 2005
7,292,883 Physiological assessment system 127 2005
7,761,128 Physiological monitor 68 2005
7,215,986 Signal processing apparatus 166 2005
7,041,060 Rapid non-invasive blood pressure measuring device 177 2005
7,272,425 Pulse oximetry sensor including stored sensor data 173 2005
7,340,287 Flex circuit shielded optical sensor 118 2005
7,186,966 Amount of use tracking device and method for medical product 178 2005
7,221,971 Method and apparatus for demodulating signals in a pulse oximetry system 139 2005
7,377,794 Multiple wavelength sensor interconnect 126 2006
7,499,835 Variable indication estimator 97 2006
RE41317 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 76 2006
7,190,261 Arrhythmia alarm processor 147 2006
7,618,375 Rapid non-invasive blood pressure measuring device 78 2006
7,377,899 Sine saturation transform 113 2006
7,489,958 Signal processing apparatus and method 95 2006
7,454,240 Signal processing apparatus 92 2006
7,332,784 Method of providing an optoelectronic element with a non-protruding lens 115 2006
7,530,942 Remote sensing infant warmer 86 2006
7,526,328 Manual and automatic probe calibration 85 2006
7,355,512 Parallel alarm processor 132 2007
2007/0225,581 SIGNAL PROCESSING APPARATUS 38 2007
7,467,002 Sine saturation transform 91 2007
7,509,154 Signal processing apparatus 101 2007
7,734,320 Sensor isolation 70 2007
D587657 Connector assembly 87 2007
D609193 Connector assembly 80 2007
D614305 Connector assembly 80 2008
2009/0099,430 SIGNAL PROCESSING APPARATUS 13 2008
2009/0182,211 SIGNAL PROCESSING APPARATUS 14 2009
 
CERCACOR LABORATORIES, INC. (29)
5,638,816 Active pulse blood constituent monitoring 330 1995
5,743,262 Blood glucose monitoring system 573 1995
5,760,910 Optical filter for spectroscopic measurement and method of producing the optical filter 319 1995
5,860,919 Active pulse blood constituent monitoring method 355 1997
6,110,522 Blood glucose monitoring system 237 1998
5,940,182 Optical filter for spectroscopic measurement and method of producing the optical filter 320 1998
6,151,516 Active pulse blood constituent monitoring 299 1998
6,278,522 Optical filter for spectroscopic measurement and method of producing the optical filter 320 1999
6,639,668 Asynchronous fluorescence scan 124 2000
6,931,268 Active pulse blood constituent monitoring 193 2000
6,597,932 Generation of spatially-averaged excitation-emission map in heterogeneous tissue 133 2001
6,640,116 Optical spectroscopy pathlength measurement system 285 2001
6,920,345 Optical sensor including disposable and reusable elements 287 2003
6,961,598 Pulse and active pulse spectraphotometry 249 2003
7,003,338 Method and apparatus for reducing coupling between signals 258 2003
7,149,561 Optical spectroscopy pathlength measurement system 141 2003
7,027,849 Blood parameter measurement system 307 2003
6,970,792 Systems and methods for determining blood oxygen saturation values using complex number encoding 194 2003
7,343,186 Multi-wavelength physiological monitor 129 2005
7,289,835 Multivariate analysis of green to ultraviolet spectra of cell and tissue samples 155 2005
7,225,007 Optical sensor including disposable and reusable elements 156 2005
7,239,905 Active pulse blood constituent monitoring 140 2005
7,440,787 Systems and methods for determining blood oxygen saturation values using complex number encoding 95 2005
7,596,398 Multiple wavelength sensor attachment 81 2006
7,647,083 Multiple wavelength sensor equalization 78 2006
7,729,733 Configurable physiological measurement system 74 2006
7,761,127 Multiple wavelength sensor substrate 66 2006
7,563,110 Multiple wavelength sensor interconnect 84 2008
D606659 Patient monitor 97 2008
 
NELLCOR PURITAN BENNETT INCORPORATED (21)
4,802,486 Method and apparatus for detecting optical pulses 213 1985
4,653,498 Pulse oximeter monitor 345 1986
4,800,495 Method and apparatus for processing signals used in oximetry 235 1986
4,819,646 Feedback-controlled method and apparatus for processing signals used in oximetry 147 1986
4,859,056 Multiple-pulse method and apparatus for use in oximetry 134 1986
4,869,253 Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry 208 1986
4,913,150 Method and apparatus for the automatic calibration of signals employed in oximetry 251 1986
4,869,254 Method and apparatus for calculating arterial oxygen saturation 259 1988
4,911,167 Method and apparatus for detecting optical pulses 298 1988
4,928,692 Method and apparatus for detecting optical pulses 207 1988
4,892,101 Method and apparatus for offsetting baseline portion of oximeter signal 178 1989
4,934,372 Method and apparatus for detecting optical pulses 231 1989
5,259,381 Apparatus for the automatic calibration of signals employed in oximetry 206 1989
5,078,136 Method and apparatus for calculating arterial oxygen saturation based plethysmographs including transients 213 1989
5,218,962 Multiple region pulse oximetry probe and oximeter 185 1991
5,246,002 Noise insensitive pulse transmittance oximeter 171 1992
RE35122 Method and apparatus for detecting optical pulses 174 1992
5,368,026 Oximeter with motion detection for alarm modification 192 1993
5,853,364 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 264 1996
6,083,172 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 185 1998
6,411,833 Method and apparatus for estimating physiological parameters using model-based adaptive filtering 159 1999
 
CEDARS-SINAI MEDICAL CENTER (7)
5,377,676 Method for determining the biodistribution of substances using fluorescence spectroscopy 187 1993
5,341,805 Glucose fluorescence monitor and method 216 1993
5,456,252 Induced fluorescence spectroscopy blood perfusion and pH monitor and method 176 1993
6,232,609 Glucose monitoring apparatus and method using laser-induced emission spectroscopy 140 1995
6,124,597 Method and devices for laser induced fluorescence attenuation spectroscopy 199 1997
6,697,657 Method and devices for laser induced fluorescence attenuation spectroscopy (LIFAS) 125 2000
RE39672 Method and devices for laser induced fluorescence attenuation spectroscopy 130 2002
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (7)
4,667,680 Apparatus and method for reduction in respiration artifact in pulmonary artery pressure measurement 33 1983
5,299,120 Method for digitally processing signals containing information regarding arterial blood flow 132 1989
5,188,108 Sensor, apparatus and method for non-invasive measurement of oxygen saturation 189 1991
5,285,784 Sensor, apparatus and method for non-invasive measurement of oxygen saturation 134 1992
5,800,348 Apparatus and method for medical monitoring, in particular pulse oximeter 154 1996
6,631,281 Recognition of a useful signal in a measurement signal 148 2002
6,654,623 Interference suppression for measuring signals with periodic wanted signals 165 2002
 
Minolta Camera Kabushiki Kaisha (7)
4,266,554 Digital oximeter 187 1979
4,305,398 Eye fundus oximeter 72 1979
4,446,871 Optical analyzer for measuring a construction ratio between components in the living tissue 114 1980
4,586,513 Noninvasive device for photoelectrically measuring the property of arterial blood 197 1983
4,714,341 Multi-wavelength oximeter having a means for disregarding a poor signal 288 1985
4,694,833 Noninvasive device for photoelectrically measuring the property of arterial blood 168 1986
4,942,877 Device for measuring oxygen saturation degree in arterial blood 277 1987
 
UNIVERSITY OF SOUTH FLORIDA (4)
5,575,284 Portable pulse oximeter 341 1994
5,830,137 Green light pulse oximeter 192 1996
6,011,985 Medical diagnostic instrument using light-to-frequency converter 162 1996
6,330,468 System using green light to determine parmeters of a cardiovascular system 158 1998
 
CARDIAC PACEMAKERS, INC. (3)
4,793,361 Dual channel P-wave detection in surface electrocardiographs 75 1987
4,799,486 Refractoriless atrial sensing in dual chamber pacemakers 90 1987
4,799,493 Dual channel coherent fibrillation detection system 145 1987
 
Criticare Systems, Inc. (3)
4,860,759 Vital signs monitor 109 1987
4,960,126 ECG synchronized pulse oximeter 206 1988
5,842,981 Direct to digital oximeter 199 1996
 
CURATECHNOLOGIES INC. (3)
D353195 Electronic stethoscope housing 167 1993
D353196 Stethoscope head 177 1993
5,602,924 Electronic stethescope 176 1993
 
DATEX-OHMEDA, INC. (3)
4,800,885 Blood constituent monitoring apparatus and methods with frequency division multiplexing 213 1987
5,934,277 System for pulse oximetry SpO2 determination 183 1995
6,253,097 Noninvasive medical monitoring instrument using surface emitting laser devices 199 1996
 
GLT ACQUISITION CORP. (3)
7,356,365 Method and apparatus for tissue oximetry 76 2004
7,254,429 Method and apparatus for monitoring glucose levels in a biological tissue 151 2004
7,510,849 OCT based method for diagnosis and therapy 71 2005
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (3)
5,170,791 Method and apparatus for calculating the fetal heart rate 23 1991
6,122,535 Method and apparatus for determining the concentration of a component 152 1998
6,725,074 Quality indicator for measurement signals, in particular, for medical measurement signals such as those used in measuring oxygen saturation 133 2002
 
SANDIA CORPORATION (3)
5,355,880 Reliable noninvasive measurement of blood gases 355 1992
5,494,032 Oximeter for reliable clinical determination of blood oxygen saturation in a fetus 260 1994
5,630,413 Reliable noninvasive measurement of blood gases 261 1994
 
THE GENERAL HOSPITAL CORPORATION (3)
6,505,059 Non-invasive tissue glucose level monitoring 246 1999
6,721,582 Non-invasive tissue glucose level monitoring 146 2001
6,728,560 Non-invasive tissue glucose level monitoring 236 2002
 
THOR TECHNOLOGY CORPORATION (3)
4,964,408 Oximeter sensor assembly with integral cable 322 1988
5,069,213 Oximeter sensor assembly with integral cable and encoder 289 1989
5,041,187 Oximeter sensor assembly with integral cable and method of forming the same 249 1990
 
COROMETRICS MEDICAL SYSTEMS, INC. (2)
4,519,396 Fetal heart rate monitor apparatus and method for combining electrically and mechanically derived cardiographic signals 56 1981
4,582,068 Systems and methods for processing physiological signals 33 1984
 
JOHNSON & JOHNSON MEDICAL, INC. (2)
4,848,901 Pulse oximeter sensor control system 197 1987
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SENSORMEDICS CORPORATION (2)
4,824,242 Non-invasive oximeter and method 260 1986
4,867,571 Wave form filter pulse detector and method for modulated signal 95 1989
 
The United States of America as represented by the Secretary of the Navy (2)
4,238,746 Adaptive line enhancer 93 1978
4,243,935 Adaptive detector 67 1979
 
VITAL INSITE, INC. (2)
6,045,509 Apparatus and method for measuring an induced perturbation to determine a physiological parameter 228 1998
6,371,921 System and method of determining whether to recalibrate a blood pressure monitor 318 1999
 
AGILENT TECHNOLOGIES, INC. (1)
5,152,296 Dual-finger vital signs monitor 213 1990
 
AKAMAI TECHNOLOGIES, INC. (1)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 19 2009
 
ALLEGHENY-SINGER RESEARCH INSTITUTE (1)
4,751,931 Method and apparatus for determining his-purkinje activity 77 1986
 
ANDROMED, INC. (1)
5,561,275 Headset for electronic stethoscope 134 1994
 
ARRHYTHMIA RESEARCH TECHNOLOGY, INC. (1)
4,458,691 System and method for predicting ventricular tachycardia by adaptive high pass filter 70 1982
 
Bios Inc. (1)
4,197,836 Nuclear cardiac blood volume detecting apparatus 28 1978
 
BRITISH TECHNOLOGY GROUP LIMITED (1)
4,951,680 Fetal monitoring during labor 50 1988
 
CARDIO ACCESS LLC (1)
4,819,752 Blood constituent measuring device and method 249 1987
 
COLIN ELECTRONICS CO., LTD. (1)
4,796,636 Noninvasive reflectance oximeter 160 1987
 
COLIN MEDICAL TECHNOLOGY CORPORATION (1)
5,054,495 Automatic blood-pressure measuring apparatus 75 1989
 
COVIDIEN LP (1)
6,701,170 Blind source separation of pulse oximetry signals 164 2001
 
E FOR M CORPORATION (1)
5,273,036 Apparatus and method for monitoring respiration 205 1993
 
ERICSSON INC. (1)
4,649,505 Two-input crosstalk-resistant adaptive noise canceller 160 1984
 
FIRST BANK NATIONAL ASSOCIATION (1)
4,773,422 Single channel pulse oximeter 226 1987
 
GEBR. LODIGE MASCHINENBAU GMBH (1)
D393476 Industrial mixing machine 16 1996
 
HAIR ART, INC. (1)
4,867,165 Method for determining the perfusion 50 1987
 
Invivo Research, Inc. (1)
4,948,248 Blood constituent measuring device and method 175 1989
 
LIFE FITNESS, A GENERAL PARTNERSHIP OF NY (1)
5,243,993 Apparatus and method for measuring heart rate 65 1991
 
MASIMO LABORATORIES, INC. (1)
6,850,787 Signal component processor 311 2002
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,956,867 Adaptive beamforming for noise reduction 126 1989
 
MCGILL UNIVERSITY (1)
6,241,683 Phonospirometry for non-invasive monitoring of respiration 156 1999
 
Messer Griesheim GmbH (1)
4,967,571 Device for the cryogenic pelletization of liquids 48 1989
 
Ministry of International Trade & Industry (1)
5,003,977 Device for analyzing fluorescent light signals 48 1989
 
Mobil Oil Corporation (1)
4,858,199 Method and apparatus for cancelling nonstationary sinusoidal noise from seismic data 38 1988
 
MSA (1)
4,863,265 Apparatus and method for measuring blood constituents 248 1987
 
NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT (1)
6,397,091 Manual and automatic probe calibration 381 1999
 
NATIONAL RESEARCH DEVELOPMENT CORPORATION (1)
4,955,379 Motion artefact rejection system for pulse oximeters 212 1988
 
NEC CORPORATION (1)
4,723,294 Noise canceling system 67 1986
 
Nicolay GmbH (1)
4,907,594 Method for the determination of the saturation of the blood of a living organism with oxygen and electronic circuit for performing this method 105 1988
 
NIHON KOHDEN CORPORATION (1)
5,355,882 Pulse oximeter 144 1993
 
Omron Tateisi Electronics Co. (1)
4,927,264 Non-invasive measuring method and apparatus of blood constituents 217 1988
 
OTSUKA ELECTRONICS CO., LTD. (1)
5,057,695 Method of and apparatus for measuring the inside information of substance with the use of light scattering 170 1989
 
Oximetrix, Inc. (1)
4,623,248 Apparatus and method for determining oxygen saturation levels with increased accuracy 74 1983
 
Protocol Systems, Inc. (1)
4,949,710 Method of artifact rejection for noninvasive blood-pressure measurement by prediction and adjustment of blood-pressure data 96 1988
 
PURITAN-BENNETT CORPORATION (1)
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RCA LICENSING CORPORATION, TWO INDEPENDENCE WAY, PRINCETON, NJ 08540, A CORP. OF DE (1)
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RIC INVESTMENTS, LLC. (1)
5,448,991 Method of measuring the oxygen saturation in pulsating blood flow 151 1992
 
SANKYO COMPANY, LIMITED (1)
5,379,774 Measurement of arterial elasticity and the frequency characteristic of the compliance of an artery 36 1994
 
SEIKO INSTRUMENTS INC. (1)
5,190,047 Photoelectric pulsation type pulsimeter 23 1990
 
SENSIDYNE, INC. (1)
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5,662,105 System and method for the extractment of physiological signals 129 1995
 
SUMITOMO ELECTRIC INDUSTRIES, LTD. (1)
5,154,176 Liver function testing apparatus 19 1991
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (1)
4,537,200 ECG enhancement by adaptive cancellation of electrosurgical interference 124 1983
 
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The Cleveland Clinic Foundation (1)
4,897,162 Pulse voltammetry 255 1988
 
The Perkin-Elmer Corporation (1)
4,883,356 Spectrometer detector mounting assembly 35 1988
 
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U.S. Philips Corporation (1)
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UNION TRUST COMPANY (1)
5,190,038 Pulse oximeter with improved accuracy and response time 233 1989
 
UNIVERSITE LAVAL (1)
6,368,283 Method and apparatus for estimating systolic and mean pulmonary artery pressures of a patient 197 2000
 
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC. (1)
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UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY (1)
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6,027,452 Rapid non-invasive blood pressure measuring device 239 1996
 
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5,791,347 Motion insensitive pulse detector 238 1996
 
Other [Check patent profile for assignment information] (15)
4,781,200 Ambulatory non-invasive automatic fetal monitoring system 135 1985
5,379,238 Signal processing method and apparatus 204 1992
5,458,128 Method and apparatus for noninvasively measuring concentration of a dye in arterial blood 83 1994
2002/0128,544 Signal processing apparatus 148 2002
2004/0068,164 Signal processing apparatus 129 2003
2004/0204,637 Signal processing apparatus and method 110 2004
2004/0210,146 Signal processing apparatus 105 2004
2006/0200,016 Signal processing apparatus and method 33 2006
2007/0249,918 SIGNAL PROCESSING APPARATUS 32 2007
2007/0291,832 SIGNAL PROCESSING APPARATUS 35 2007
2008/0004,514 SIGNAL PROCESSING APPARATUS 34 2007
2008/0033,266 Signal processing apparatus 37 2007
2008/0036,752 SIGNAL PROCESSING APPARATUS AND METHOD 33 2007
2008/0045,823 SIGNAL PROCESSING APPARATUS 33 2007
2009/0076,400 SIGNAL PROCESSING APPARATUS 13 2008

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
MASIMO CORPORATION (14)
8,560,034 Signal processing apparatus 0 1998
8,641,631 Non-invasive monitoring of respiratory rate, heart rate and apnea 0 2005
8,532,727 Dual-mode pulse oximeter 1 2007
8,588,880 Ear sensor 0 2010
8,690,799 Acoustic respiratory monitoring sensor having multiple sensing elements 0 2010
8,430,817 System for determining confidence in respiratory rate measurements 2 2010
8,666,468 Patient monitor for determining microcirculation state 0 2011
8,229,533 Low-noise optical probes for reducing ambient noise 20 2012
RE44823 Universal modular pulse oximeter probe for use with reusable and disposable patient attachment devices 0 2012
8,364,226 Signal processing apparatus 5 2012
8,359,080 Signal processing apparatus 5 2012
8,529,301 Shielded connector assembly 1 2012
8,463,349 Signal processing apparatus 2 2012
8,570,167 Physiological trend monitor 0 2012
 
CERCACOR LABORATORIES, INC. (10)
8,577,431 Noise shielding for a noninvasive device 0 2009
8,437,825 Contoured protrusion for improving spectroscopic measurement of blood constituents 4 2009
8,630,691 Multi-stream sensor front ends for noninvasive measurement of blood constituents 0 2009
8,515,509 Multi-stream emitter for noninvasive measurement of blood constituents 2 2009
8,471,713 Interference detector for patient monitor 2 2010
8,676,286 Method and apparatus for reducing coupling between signals in a measurement system 0 2011
8,626,255 Noninvasive multi-parameter patient monitor 0 2012
8,560,032 Noninvasive multi-parameter patient monitor 0 2012
8,570,503 Heat sink for noninvasive medical sensor 0 2012
8,548,550 Optical sensor including disposable and reusable elements 0 2012
 
GLT ACQUISITION CORP. (3)
8,571,617 Flowometry in optical coherence tomography for analyte level estimation 0 2009
8,306,596 Method for data reduction and calibration of an OCT-based physiological monitor 6 2010
8,548,549 Methods for noninvasively measuring analyte levels in a subject 0 2011
 
Ceracor Laboratories, Inc. (1)
8,688,183 Emitter driver for noninvasive patient monitor 0 2010
 
Other [Check patent profile for assignment information] (1)
8,700,112 Secondary-emitter sensor position indicator 0 2013

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