US Patent No: 5,786,765

Number of patents in Portfolio can not be more than 2000

Apparatus for estimating the drowsiness level of a vehicle driver

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Abstract

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An apparatus for estimating a drowsiness level of a vehicle driver first prepares a frequency distribution of blink durations of the driver for a first predetermined period after the start of a driving operation, and sets a threshold value for a discrimination of slow blinks by the frequency distribution. Thereafter, the apparatus calculates, every second predetermined period, a ratio of the number of slow blinks to the total number of blinks of the driver's eyes during the second period, and discriminates a rise in the drowsiness level of the driver in accordance with the calculated ratio.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MITSUBISHI JIDOSHA KOGYO K.K. (A.K.A. MITSUBISHI MOTORS CORPORATION)TOKYO737

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goi, Yoshihiro Anjo, JP 2 41
Hara, Toru Okazaki, JP 6 61
Kumakura, Sae Okazaki, JP 1 38

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
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SIEMENS MEDICAL SOLUTIONS USA, INC. (1)
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MAZDA MOTOR CORPORATION (1)
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MITSUBISHI DENKI KABUSHIKI KAISHA (2)
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Omron Tateisi Electronics Co. (1)
* 4,953,111 Doze detector 36 1988
 
HONEYWELL INC. (1)
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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (7)
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7,336,804 Method and apparatus for detection of drowsiness and quantitative control of biological processes 10 2003
* 2004/0234,103 Method and apparatus for detection of drowsiness and quantitative control of biological processes 3 2003
* 7,258,441 Eye activity monitoring apparatus and system 0 2004
7,301,465 Drowsy driving alarm system 11 2005
7,680,302 Method and apparatus for detection of drowsiness and quantitative control of biological processes 0 2007
* 2008/0192,983 Method and apparatus for detection of drowsiness and quantitative control of biological processes 0 2007
 
CALLAO INVESTMENTS, LLC (1)
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Seeing Machines Pty Ltd (2)
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L&P PROPERTY MANAGEMENT COMPANY (1)
8,957,779 Drowsy driver detection system 2 2010
 
PANASONIC CORPORATION (2)
* 9,105,172 Drowsiness-estimating device and drowsiness-estimating method 0 2012
* 2014/0062,704 SLEEPINESS-ESTIMATING DEVICE AND SLEEPINESS-ESTIMATING METHOD 3 2012
 
OMRON CORPORATION (2)
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MURAKAMI CORPORATION (1)
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FUJI JUKOGYO KABUSHIKI KAISHA (6)
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NEC CORPORATION (2)
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U.S. DISTRICT COURT, SO. DIST. FL (1)
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UTECHZONE CO., LTD. (1)
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SPHERICON LTD. (1)
6,756,903 Driver alertness monitoring system 20 2001
 
Volvo Technology Corporation (2)
7,639,148 Method and arrangement for controlling vehicular subsystems based on interpreted driver activity 31 2004
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TOYOTA JIDOSHA KABUSHIKI KAISHA (4)
* 8,666,644 Drive assistance apparatus 0 2008
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* 2013/0002,417 BIOLOGICAL STATE DETERMINATION DEVICE 0 2010
 
VERILY LIFE SCIENCES LLC (1)
* 2014/0081,178 Sensing System 5 2012
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (3)
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* 2006/0015,689 Implementation and management of moveable buffers in cache system 2 2004
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VOLVO TECHNOLOGY (CORPORATION) (4)
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7,460,940 Method and arrangement for interpreting a subjects head and eye activity 31 2003
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Hyudai Motor Japan R&D Center, Inc. (1)
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3M INNOVATIVE PROPERTIES COMPANY (1)
* 2008/0149,401 UNTETHERED STYLUS EMPLOYING SEPARATE COMMUNICATION CHANNELS 16 2006
 
KIA MOTORS CORPORATION (1)
* 2009/0237,257 DOZE-OFF WARNING APPARATUS FOR VEHICLE 2 2008
 
BALLY GAMING, INC. (1)
* 2009/0055,611 REORGANIZING A WAGERING GAME MACHINE'S NVRAM 2 2007
 
7352867 Canada Inc. (2)
8,570,176 Method and device for the detection of microsleep events 1 2008
* 2009/0299,209 METHOD AND DEVICE FOR THE DETECTION OF MICROSLEEP EVENTS 0 2008
 
Sleep Diagnostics Pty., Ltd (1)
* 7,791,491 Measuring alertness 9 2006
 
DENSO CORPORATION (3)
* 7,705,738 Database apparatus, attention calling apparatus and driving support apparatus 5 2008
* 2008/0236,929 Database apparatus, attention calling apparatus and driving support apparatus 1 2008
* 2011/0216,181 DROWSINESS DETERMINATION APPARATUS AND PROGRAM 3 2009
 
ADVANCED BRAIN MONITORING, INC. (2)
6,496,724 Method for the quantification of human alertness 63 1999
6,625,485 Method for the quantification of human alertness 30 2002
 
WILLIAM J. BROWN, ESQ., TRUSTEE FOR JOSEPH D. HARBAUGH (1)
* 6,717,518 Method and apparatus for detection of drowsiness 51 2001
 
DELPHI TECHNOLOGIES, INC. (7)
* 6,927,674 Vehicle instrument cluster having integrated imaging system 5 2002
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* 7,202,792 Drowsiness detection system and method 24 2002
* 2004/0090,334 Drowsiness detection system and method 18 2002
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UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (1)
6,927,694 Algorithm for monitoring head/eye motion for driver alertness with one camera 70 2002
 
PNI CORPORATION (1)
* 6,297,732 Radar/laser detection device with multi-sensing and reporting capability 59 1999
 
VOLVO CAR CORPORATION (1)
* 6,614,344 Optical sensor for an adjustable vehicle seating system 12 2000
 
FORD GLOBAL TECHNOLOGIES, LLC (2)
* 7,138,922 Drowsy driver monitoring and prevention system 18 2003
* 2004/0183,685 DROWSY DRIVER MONITORING AND PREVENTION SYSTEM 1 2003
 
COMPUMEDICS LIMITED (2)
* 8,096,946 Vigilance monitoring system 9 2003
* 2004/0044,293 Vigilance monitoring system 52 2003
* Cited By Examiner