Magnetic speed, direction, and/or movement extent sensor

Details Magnetic speed, direction, and/or movement extent sensor Magnetic speed, direction, and/or movement extent sensor

2011-03-29

2011-03-29

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

C324S173000, C324S165000, C324S207210, C324S252000

Reexamination Certificate

active

07915886

ABSTRACT:
A first magnetic sensor produces a first output signal in response to movement of a target such as a multi-pole ring magnet, and a second magnetic sensor produces a second output signal in response to movement of the target. The first and second magnetic sensors may be corresponding magnetoresistor sensors, the first and second magnetic sensors may be intertwined, the first and second magnetic sensors may be oriented at an angle with respect to one another so as to produce a difference in phase between the first and second output signals, the first and second magnetic sensors may be arranged so as to produce a 90° phase difference between the first and second output signals, and/or the first and second magnetic sensors may be formed on a semiconductor substrate.

REFERENCES:
patent: 2006/0103381 (2006-05-01), Schmollngruber et al.
patent: 2008/0180090 (2008-07-01), Stolfus et al.
patent: WO 2004/113928 (2004-12-01), None
Klaus Dietmayer et al., “Contactless Angle Measurement using KMZ41 and UZZ9000”, Philips Semiconductors, Application Note AN98097, Dec. 16, 1998, pp, 1-52.
NXP founded by Philips, KMZ41 Magnetic field sensor—Product data sheet, Rev. 05—Nov. 27, 2006, pp. 1-10.
D. Wang et al., “360 Degree Angle Sensor Using Spin Valve Materials with SAF Structure”, Feb. 7, 2005, pp. 1-3.
NVE Corporation—“AA and AB-Series Analog Sensors”, pp. 12-27.
Dietmayer K et al., Contactless Angle Measurement, Philips Semiconductors Application Note, Jan. 2000, pp. 1-13, XP002306258.

Affiliated with

Also associated with

Rating

Magnetic speed, direction, and/or movement extent sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic speed, direction, and/or movement extent sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic speed, direction, and/or movement extent sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2670327