Distortionless magnetic head using integral mechanical filter means
阅读：57发布：2023-04-03
专利汇可以提供Distortionless magnetic head using integral mechanical filter means专利检索，专利查询，专利分析的服务。并且A head for magnetic recording or reproducing purposes is disclosed wherein the magnetic structure includes mechanical filter configurations integral with the core structure relative thereto through which the main core flux is conducted. Magnetic discontinuities are provided in the overall core structure so that coils wound on the core structure are isolated from each other by such discontinuities. The results thus obtainable are deletion of harmonic components of the carrier frequency together with their distortion components and very substantial attenuation of the distortion compounds due to steady state sinusoidal intelligence. Cores without discontinuties are provided for attenuation of distortion when non-sinusoidal intelligence is used.，下面是Distortionless magnetic head using integral mechanical filter means专利的具体信息内容。
1. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, said mechanical filter means comprises: an array of magnetizable disks excited by said magnetic flux during said recordingg or reproduce mode, said disks being positioned parallel to and spaced apart from each other, each of said disks comprising two half portions; non-magnetic material joining the half portions of each said disk for providing magnetic discontinuities in each of the disks; and coupling wires joining the outer peripheries of the disks.
2. The invention as stated in claim 1, wherein said magnetizable core means comprises: a plurality of core portions with magnetic discontinuities along the length of said core portion.
3. The invention as stated in claim 1, wherein said magnetizable core means comprises: magnetizable material devoid of magnetic discontinuities, said core means having a narrowed portion for transducing said flux thereat.
4. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, said mechanical filter means comprises: a plurality of arrays of magnetizable disks excited by said magnetic flux during said recording or reproduce mode, the disks in each of said plurality of arrays being parallel to and spaced apart from each otHer; and coupling wires joining the outer peripheries of the disks.
5. The invention as stated in claim 4, wherein said magnetizable core means comprises: a plurality of core portions with magnetic discontinuities along the length of said core.
6. The invention as stated in cliam 4, wherein said magnetizable core means comprises: magnetizable material devoid of magnetic discontinuities, said core means having a narrowed portion for transducing said flux thereat.
7. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, said mechanical filter means comprises: a plurality of magnetizable disks excited by said magnetic flux during said recording or reproduce mode, said disks being positioned parallel to and spaced apart from each other, each of the disks comprising two half portions; non-magnetic material joining said half portions for providing a magnetic discontinuity between said half portions; and members with magnetic discontinuities therein, said members being attached to the centers of the disks for maintaining alignment of the discontinuities in the disks with the discontinuities in the members and for providing spacing between said disks.
8. The invention as stated in claim 7, wherein said magnetizable core means comprises: a plurality of core portions with magnetic discontinuities along the length of said portion.
9. The invention as stated in claim 7, wherein said magnetizable core means comprises: magnetizable material devoid of magnetic discontinuities, said core means having a narrowed portion for transducing said flux thereat.
10. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, wherein said core means comprises two core portions, and wherein said mechanical filter means comprises a piezoresistive member, positioned between said two core portions and in cooperation with said two core portions, said member being excited by the magnetic flux during said recording or reproduce mode.
11. The invention as stated in claim 10, wherein each of said two core portions has a plurality of magnetic discontinuities along its length.
12. The invention as stated in claim 10, wherein said magnetizable core means comprises: magnetizable material devoid of magnetic discontinuities, said core means having a narrowed portion for transducing said flux thereat.
13. The invention as stated in claim 10: said piezoresistive member being a quartz crystal.
14. The invention as stated in claim 10: said piezoresistive member being a ceramic material.
15. The invention as stated in claim 10: said piezoresistive member being a semiconductor material.
16. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for fIltering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, wherein said core means comprises two core portions, and wherein said mechanical filter means comprises a semiconductor member in cooperation with and positioned between said two core portions, said member being excited by the magnetic flux during said recording or reproduce mode.
17. The invention as stated in claim 16, wherein each of said two core portions has a plurality of magnetic discontinuities along its length.
18. The invention as stated in claim 16, wherein said magnetizable core means comprises: magnetizable material devoid of magnetic discontinuities, said core means having a narrowed portion for transducing said flux thereat.
19. The invention as stated in claim 16, including: an insulating oxide film integral with the semiconductor member and interposed between the semiconductor member and each of the core portions and in cooperation with the core portions.
20. The invention as stated in claim 16, wherein said semiconductor material and magnetizable core means form a tapered structure that is wider at one end of the tapered structure and narrower at the other end thereof for transducing said flux at the narrower end.
21. The invention as stated in claim 16, wherein each of said core portions comprises: a layer of magnetic composition.
22. The invention as stated in claim 21: said layers of magnetic composition being an oxide compound having the formulation R1-R2-Oxide, wherein R1 is at least one element selected from the group consisting of nickel, cerium, praseodynium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, yttrium, thulium, lanthanum, ytterbium and lutetium, and R2 is at least one element selected from the group consiting of iron, manganese, chromium, vanadium, aluminum, titanium, indium, gallium and scandium.
23. The invention as stated in claim 21, where said coil means are formed on a portion of at least one of the two layers of magnetic composition.
24. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, the mechanical filter means comprises: an array of magnetizable planar members excited by said magnetic flux during said recording or reproduce mode, the planar members being positioned parallel to and spaced apart from each other, each of the planar members comprising a plural number of portions; and non-magnetic members joining the plural number of portions of each of the planar members for providing magnetic discontinuities in each of the planar members, said planar members being joined at their outer peripheries to the core means.
25. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means-integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, the mechanical filter means comprises: a plurality of arrays of magnetizable planar members excited by said magnetic flux during said recording or reproduce mode, the planar members being positioned parallel to and spaced apart from each other, eacH of the planar members comprising a plural mumber of portions; and non-magnetic members joining the plural number of portions of each of the planar members for providing magnetic discontinuities in each of the planar members, said planar members being joined at their outer peripheries to the core means.
26. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, the mechanical filter means comprises: an array of magnetizable planar members excited by said magnetic flux during said recording or reproduce mode, the planar members being positioned parallel to and spaced from each other, each of the planar members comprising a plural number of portions; non-magnetic members joining the plural number of portions of each of the planar members for providing magnetic discontinuities in each of the planar members; and spacer members, between the centers of the planar members, in cooperation with the surfaces of said planar members providing spacing therebetween, said magnetizable core means having two elongated portions which are each attached to the outer surfaces of the array constituting the planar members at the ends of said array, said elongated portions being positioned substantially at the respective centers of the planar members located at said ends and perpendicular to said ends.
27. A magnetic head, comprising in combination: magnetizable core means for establishing a principal path for magnetic flux in said head; coil means integral with the magnetizable core means for providing said magnetic flux during recording mode or for sensing said magnetic flux during reproduce mode; and mechanical filter means integral with the magnetizable core means for filtering the flux to pass a bandwidth of information and carrier signal while attenuating harmonic components of the carrier signal, the mechanical filter means comprises: an array of magnetizable planar members excited by said magnetic flux during said recording or reproduce mode, the planar members being positioned parallel to and spaced from each other, each of the planar members comprising a plural number of portions; non-magnetic members joining the plural number of portions of each of the planar members for providing magnetic discontinuities in each of the planar members; and spacer members, between the centers of the planar members, in cooperation with the surfaces of said planar members providing spacing therebetween, said magnetizable core means having two elongated portions which are attached to the outer surfaces of the array constituting the planar members at the ends of said array, one of said elongated portions being positioned off-center with respect to one of the planar members located at one of said ends and the other of said elongated portions being positioned substantially at the center of the planar member located at the other of said ends, both said elongated portions being perpendicular to said ends.
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