Tool/software:
Please have a look at Fig. 17 in U.S. Patent 10,380,986; Fig. 16 in 10,810,986; Figs. 10, 11 & 21 in 11,087,731; Fig. 53 in 12,020,674; and Figs. 18, 26, 30 & 31 in US2023/0013236 A1. I've been designing these circuits in mind for TI micro-power op-amps and TSP430 and 432 micro-controllers, to run for more than 100 hours on AA batteries. I can see a large place for a micro-power digital pot with a quarter-cycle sine taper, to use in the linear mixing of humbucking pair string signals. I have two more patents in mind.
But I'm limited to filing and prosecuting patents. I don't have the resources for anything else. Plus age and medications have removed my software skills. I need partners.
Any bites?