The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2021
Filed:
Aug. 17, 2020
Donald L Baker, Tulsa, OK (US);
Donald L Baker, Tulsa, OK (US);
Other;
Abstract
This invention continues and adds to the embodiments under Non-provisional patent application Ser. No. 16/840,644, adding circuits using small dual-coil humbucking pickups made to mount in the same holes as and replace single-coil pickups. It also develops circuits to match the value of tone capacitors to the lumped inductances of pickup circuits. A mechanical switching system for 3 single-sized humbuckers can produce 21 distinct tonal circuits from 48 different switch combinations, using a 6-way circuit switch and three 2-way mode switches. A digitally-controlled solid-state switching system can avoid the duplicate circuits, and control even more pickups for more tones. With such a switching system, the user can set the order of 2, 21, 120 and 705 distinct tonal circuits for 2, 3, 4 and 5 single-sized humbucking pickups, with expected extensions to larger numbers of pickups, and the caveat from previous work by this inventor that tones tend to bunch together at the warm end, decreasing the number of audibly distinct tones.