Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2005-09-20
2005-09-20
Patidar, Jay (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207220, C123S406630, C123S617000
Reexamination Certificate
active
06946830
ABSTRACT:
A rotation-angular-position detecting apparatus of a rotor is capable of confirming an angular position of a rotation of the rotor within a relatively short period of time following a start of the rotation. The rotation-angular-position detecting apparatus includes a second rotor which rotates in a rotation interlocked with a first rotor with a plurality of first detection members formed at equal intervals in a rotational direction of the first rotor at a predetermined speed ratio with respect to the first rotor, and has a plurality of second detection members formed at unequal intervals in a rotational direction of the second rotor. A second pickup is provided for generating a second detection signal when sensing the proximity of any one of the second detection members on the second rotor. In the rotation-angular-position detecting apparatus, generation of the second detection signal from the second pickup is detected for each generation of the first detection signal from the first pickup due to a rotation of the first rotor. A plurality of specific rotation angular positions of the first rotor are each determined in accordance with a plurality of results of detection obtained so far including a result of the detection of the generation of the second detection signal obtained this time. The number of times the first detection signal is generated after any one of the specific rotation angular positions has been determined is counted to determine a rotation angular position of the first rotor other than the specific rotation angular positions.
REFERENCES:
patent: 5469823 (1995-11-01), Ott et al.
patent: 5632246 (1997-05-01), Suzuki
patent: 3602994 (1989-11-01), None
patent: 3602994 (1989-11-01), None
patent: 3307833 (1993-12-01), None
patent: 4310460 (1994-10-01), None
patent: 19638338 (1998-04-01), None
patent: 19638338 (1998-04-01), None
patent: 61A-277845 (1986-12-01), None
Hayashi Tatsuo
Hirakata Yoshiaki
A Giken Kogyo Kabushiki Kaisha
Patidar Jay
LandOfFree
Apparatus for detecting rotation angular positions of a rotor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for detecting rotation angular positions of a rotor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for detecting rotation angular positions of a rotor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3386397