Boots – shoes – and leggings
Patent
1989-11-01
1992-06-09
Dixon, Joseph L.
Boots, shoes, and leggings
324140R, 324167, G01R 700, G01P 348
Patent
active
051213478
ABSTRACT:
An apparatus for driving a gauge having coils in quadrature to generate a resultant magnetic field in accordance with currents applied thereto and having a pointer angularly swept by the field, the apparatus having a memory to store a first data defining a relationship between a first level, indicative of the current applied to one of the coils, and an angle of the pointer. The first level has a continous waveform varying in isoceles trapezoid form over an angle range of 0.degree. to 180.degree.. The first data varies symmetrically with the isoceles trapezoid wave at the 180.degree. pointer angle over an angle range of 180.degree. to 360.degree.. The memory is arranged to store second data defining a relationship between a second level indicative of the current applied to the other coil and the pointer angle. The second level has a continuous waveform phase shifted by 90.degree. from the continuous waveform of the first data. The apparatus also has an output generator to generate output signals indicative of first and second levels related to the first and second data. A driving circuit is responsive to the output signals to drive the coils with currents proportional to the first and second levels. Each continuous waveform of the first and second data is modified so as to be cut triangularly at its corner portions.
REFERENCES:
patent: 3636447 (1972-01-01), Gelenius
patent: 3946311 (1976-03-01), Baker et al.
patent: 4230984 (1980-10-01), Taylor
patent: 4827209 (1989-05-01), Tanaka et al.
patent: 4841238 (1989-06-01), Birch
patent: 4890057 (1989-12-01), Kobayashi et al.
patent: 4924178 (1990-05-01), Miyajima
patent: 4928060 (1990-05-01), Ito
Ban Hiroyuki
Miyake Katsuyuki
Yamamoto Tomohisa
Dixon Joseph L.
Nippondenso Co. Ltd.
LandOfFree
Apparatus for manipulating triangular wave signals used to drive 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 manipulating triangular wave signals used to drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for manipulating triangular wave signals used to drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1810300