Abstract: A magnetic sensor device may include “A”-phase magnetic resistance pattern and “B”-phase magnetic resistance pattern which are provided with a phase difference of 90° from each other; wherein the “A” pattern is provided with “+a” phase magnetic resistance pattern and “?a” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of a magnetic scale, and the “B” pattern is provided with “+b” phase magnetic resistance pattern and “?b” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of the magnetic scale, and the “+a” pattern, the “?a” pattern, the “+b” pattern and the “?b” pattern are formed on a same face of one piece of board so that the “+a” pattern and the “?a” pattern are diagonally located and the “+b” pattern and the “?b” pattern are diagonally located.

Abstract: A magnetic sensor device may include “A”-phase magnetic resistance pattern and “B”-phase magnetic resistance pattern which are provided with a phase difference of 90° from each other; wherein the “A” pattern is provided with “+a” phase magnetic resistance pattern and “?a” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of a magnetic scale, and the “B” pattern is provided with “+b” phase magnetic resistance pattern and “?b” phase magnetic resistance pattern with a phase difference of 180° from each other for detecting movement of the magnetic scale, and the “+a” pattern, the “?a” pattern, the “+b” pattern and the “?b” pattern are formed on a same face of one piece of board so that the “+a” pattern and the “?a” pattern are diagonally located and the “+b” pattern and the “?b” pattern are diagonally located.

Abstract: A magnetoresistive element may include an A-phase magnetoresistive pattern which outputs a signal, a B-phase magnetoresistive pattern which outputs another signal whose phase is different by 90° from a phase of the signal outputted from the A-phase magnetoresistive pattern, a first substrate on which the A-phase magnetoresistive pattern is formed, and a second substrate on which the B-phase magnetoresistive pattern is formed. At least one of the first and the second substrates may include a transparent substrate.

Abstract: A magnetoelectric conversion device comprises a magnetic recording medium magnetized with a repetitive signal in N and S poles that occur alternately at certain intervals and wherein said repetitive signal has a predetermined wavelength .lambda.. A magnetic sensor, facing said magnetic recording medium. The magnetic sensor changes its resistivity according to the magnetic flux of said magnetic signals. The magnetic sensor has a first current path and a second current path connected in series and forming at least one interconnect. An output terminal is connected to each interconnect. A terminal of a power source is connected to both ends of each current path. Each of the current paths comprises two unitary segments and a plurality of magnetic resistor elements formed by turning a magnetic resistance strip n times (where n is an integer of 0 and greater). The first current path comprises a third unitary segment and a fourth unitary segment. The third unitary segment comprises a magnetic resistance element.