Optical measuring device having d.c. component elimination

Details Optical measuring device having d.c. component elimination Optical measuring device having d.c. component elimination

2005-07-26

2005-07-26

Winakur, Eric F. (Department: 3736)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S310000, C600S500000, C600S479000

Reexamination Certificate

active

06922577

ABSTRACT:
An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.

REFERENCES:
patent: 4198988 (1980-04-01), Lovelace et al.
patent: 4800495 (1989-01-01), Smith
patent: 4802486 (1989-02-01), Goodman et al.
patent: 4824242 (1989-04-01), Frick et al.
patent: 5078136 (1992-01-01), Stone et al.
patent: 5351685 (1994-10-01), Potratz
patent: 5522388 (1996-06-01), Ishikawa et al.
patent: 5632272 (1997-05-01), Diab et al.
patent: 6553242 (2003-04-01), Sarussi
patent: A-9-24028 (1997-01-01), None

Affiliated with

Also associated with

Rating

Optical measuring device having d.c. component elimination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical measuring device having d.c. component elimination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical measuring device having d.c. component elimination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3420661