Proximity detector

Details Proximity detector Proximity detector

2008-05-06

2008-05-06

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

Reexamination Certificate

active

07368904

ABSTRACT:
A proximity detector includes a fine DAC and a coarse DAC, outputs of which are summed to provide a tracking signal for tracking a magnetic field signal. The proximity detector provides two mode of operation. In a first mode of operation the coarse and fine DACs operate in combination as one higher order DAC. In a second mode of operation, the coarse DAC is provided with one or more extra counts, allowing the tracking signal to move more rapidly to track a rapidly changing magnetic field signal. In another embodiment, the proximity detector also includes an offset circuit for bringing at least one of the magnetic field signal and the tracking signal towards the other one of the magnetic field signal and the tracking signal.

REFERENCES:
patent: 5442283 (1995-08-01), Vig et al.
patent: 5451946 (1995-09-01), Smith et al.
patent: 5650719 (1997-07-01), Moody et al.
patent: 5694038 (1997-12-01), Moody et al.
patent: 5729130 (1998-03-01), Moody et al.
patent: 5781005 (1998-07-01), Vig et al.
patent: 5801655 (1998-09-01), Imamura
patent: 5917320 (1999-06-01), Scheller et al.
patent: 6091239 (2000-07-01), Vig et al.
patent: 6100680 (2000-08-01), Vig et al.
patent: 6232768 (2001-05-01), Moody et al.
patent: 6297627 (2001-10-01), Towne et al.
patent: 6317067 (2001-11-01), Mohindra
patent: 6693419 (2004-02-01), Stauth et al.
patent: 2002/0126034 (2002-09-01), Draxelmayr
patent: 2005/0146322 (2005-07-01), Hoffman et al.
patent: 2005/0194970 (2005-09-01), Scheller et al.
Lecklider; “Flavored DACs for Every Application;” Evaluation Engineering; Nov. 2005; Featured Article; 11 pages.
Morrison; “The Role of the DAC;” Basics of Design; Digital-to-Analog Converters; A Supplement to Electronic Design; Nov. 10, 2003; 8 pages.
“Digital Adjustment of DC-DC Converter Output Voltage in Portable Applications;” Dallas Semiconductor Maxim; APP 818: Oct. 2, 2001; 10 pages.

Affiliated with

Also associated with

Rating

Proximity detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Proximity detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proximity detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2784782