Patent ID: 8022285
Filing Date: 2011-09-20
Classification: G10G

Abstract:
1. An automatic guitar tuning case comprising (1) an automatic strum device for plucking strings to mechanically vibrate all of the strings on a guitar, (2) six optical transducers respectively riding over six strings on a guitar to independently convert mechanically vibration of the guitar strings to electric signals, (3) six tuner units for regulating said electric signals, (4) a microcontroller for executing preset tunings, display, data process and control of the tuning system, (5) a tuning processor software which further comprises a signal wave analyzer, signal frequency counter, frequency comparator and a tone database, (6) a microcontroller software which comprises a tuning program, a loosening string program, a preset program and a display program, (7) tuning machine units which further consist of six electric tuning wrenches, (8) a control panel which further comprises an LCD for showing selected tuning and temperament, LED array for indicating all strings' pitch status, LEDs as indicators of power-on, in-tone and alarm, preset buttons for selecting tunings, and control buttons of tune, rewind and on/off switch, (9) a power supply and a rechargeable battery for supplying energy to said tuning system, (10) a neck base or neck support which holds on a guitar neck to hold it in immovable proper position, (11) a strap pin support which holds on a guitar body to it in immovable proper position, and (12) a case for housing a guitar and a said tuning system which includes all above components, parts, means, devices and software.