Abstract: An electric motor includes at least a stator core carrying toroidal coils wound thereon, a magnet provided in opposition to the stator core so as to constitute a part of a rotor, and magnetic flux detection elements for detecting changes in magnetic polarity of the magnet so as to control a current flowing in the toroidal coils. The stator is provided with a select number of cut portions at its open end. The number of cut portions is not less than that of the magnetic flux detection elements. The winding positions of the toroidal coils are considered in order to maintain magnetic symmetry, the magnetic flux detection elements being provided in the cut portions.

Abstract: A color converter capable of conversions between various kinds of color signals appropriate for use over a network (i.e., RGB signals, various luminance/chromaticity separated signals that are expressed by linear transformations of said RGB signals, and CIE LAB signals, which signals may or may not be gamma-corrected) and the internal color signals of devices connected to the network can be realized by rewriting associated coefficients and constants using the same circuit. Accurate color conversions can always be accomplished with an inexpensive system layout.

Abstract: A combination thermal and magnetic recording head is advantageously designed such that the heat generating resistor elements forming the thermal device are incorporated with the magnetic head device. Specifically, the thermal head may be incorporated in the air gap of the magnetic device.