Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-03-25
2010-10-26
Swarthout, Brent (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S439000, C340S575000, C382S118000
Reexamination Certificate
active
07821409
ABSTRACT:
A drowsiness alarm apparatus and a program for decreasing the possibility of incorrectly issuing an alarm due to an expressed emotion is provided. A wakefulness degree calculation apparatus performs a wakeful face feature collection process to collect a wakefulness degree criterion and an average representative feature distance. A doze alarm process collects a characteristic opening degree value and a characteristic feature distance. The wakefulness degree criterion is compared with the characteristic opening degree value to estimate a wakefulness degree. The average representative feature distance is compared with the characteristic feature distance to determine whether the face of the driver expresses a specific emotion. If the face expresses the emotion, alarm output is inhibited. When the face does not express the emotion, an alarm is output in accordance with the degree of decreased wakefulness so as to provide an increased alarm degree for the driver if necessary.
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Office Action dated Jan. 26, 2009 in corresponding Japanese patent application No. 2007-079310 (and English translation).
DENSO CORPORATION
Posz Law Group , PLC
Swarthout Brent
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