METHOD AND DEVICE USING LOW INDUCTANCE COIL IN AN ELECTRICAL PICKUP

• US 20150199949A1
• Filed: 01/12/2015
• Published: 07/16/2015
• Est. Priority Date: 01/10/2014
• Status: Active Grant

• Current Assignee: Fishman Transducers Incorporated
• Original Assignee: Fishman Transducers Incorporated
• Inventors: FISHMAN, Lawrence, ECK, John
• Granted Patent: US 9,355,630 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G10H 1/12 by filtering complex waveforms G10H1/14, G10H1/16 take precedence
• CPC Class Codes: G10H 2220/505 Dual coil electrodynamic string transducer, e.g. for humbucking, to cancel out parasitic magnetic fields
• CPC Class Codes: G10H 3/14 using mechanically actuated vibrators with pick-up means G10H3/24 takes precedence
• CPC Class Codes: G10H 3/143 characterised by the use of a piezoelectric or magneto-strictive transducer
• CPC Class Codes: G10H 3/18 using a string, e.g. electric guitar mechanical features G10D1/085
• CPC Class Codes: G10H 3/181 Details of pick-up assemblies
• CPC Class Codes: G10H 3/186 Means for processing the signal picked up from the strings filtering G10H1/12

Abstract

A pickup device for an electric instrument may include at least one permanent magnet to detect vibrations from the electric instrument'"'"'s strings. The pickup device may further include at least one coil within a magnetic field of the permanent magnet. The coil may be coupled to one or more of a plurality of selectable filters. The pickup device may be an integrated assembly and fittable within a standard-sized pickup cavity on the electric instrument.

Claims

1. A pickup device for an electric musical instrument, comprising:

at least one permanent magnet to detect vibrations from the electric instrument'"'"'s strings; and

at least one coil within a magnetic field of the permanent magnet, wherein the coil is coupled to one or more of a plurality of selectable filters, wherein the pickup device is an integrated assembly and fittable within a standard-sized pickup cavity on the electric instrument.

2. The pickup device of claim 1, wherein the filters are analog filters.

3. The pickup device of claim 1, wherein the filters are digital filters.

4. The pickup device of claim 3, wherein the digital filters are implemented in a digital signal processor.

5. The pickup device of claim 3, wherein the digital filters receive power from a power source integrated within a control cavity of the electric instrument.

6. The pickup device of claim 3, wherein the digital filters are downloaded from a computer to memory stored on the pickup.

7. The pickup device of claim 1, wherein the pickup device is retrofittable into standard electric guitars.

8. The pickup device of claim 1, wherein each of the selectable filters produce a different pickup voice and a switch selects which filter is used.

9. A method of emulating sound, comprising:

detecting vibrations from an electric musical instrument'"'"'s strings through changes in a magnetic field provided by at least one permanent magnet, wherein at least one coil is within the magnetic field; and

inputting a signal from the coil through one or more of a plurality of selectable filters, wherein the magnet, the coil and the plurality of selectable filters are an integrated assembly and fittable into a standard-sized pickup cavity on an electric instrument.

10. The method of claim 9, comprising outputting a signal from one of the plurality of selectable filters to an amplifier.

11. The method of claim 9, comprising selecting between the plurality of selectable filters using a switch.

12. The method of claim 9, wherein each of the selectable filters provides a different frequency response to the signal from the coil.

13. The method of claim 9, wherein the coil is wire wound.

14. The method of claim 9, wherein the coil is a printed coil.

15. A pickup system, comprising:

at least one permanent magnet providing a magnetic field responsive to vibrations from an electric musical instrument'"'"'s strings; and

at least one coil responsive to the magnetic field, the coil coupled to one of a plurality of selectable filters, wherein the magnet, the coil and the plurality of selectable filters are an integrated assembly within a standard-sized pickup cavity on the electric instrument.

16. The pickup system of claim 15, wherein the standard-sized pickup cavity is a single width pickup cavity.

17. The pickup system of claim 15, wherein the standard-sized pickup cavity is a humbucker pickup cavity.

18. The pickup system of claim 15, wherein the selectable filters are a combination of high pass, low pass, or band pass filters.

19. The pickup system of claim 15, wherein the selectable filters are digital.

20. The pickup system of claim 15, wherein the coil is a printed coil.