![]() ![]() Portable and programmable biofeedback system with switching circuit for voice-message recording and playback US07/711,933 Expired - Fee Related US5245666AĬited By (5) * Cited by examiner, † Cited by third party Publication number Priority Applications (1) Application NumberĪpplications Claiming Priority (1) Application Numberįamily ID=24860106 Family Applications (1) Application Number ![]() US07/711,933 Personal subliminal messaging system Said means for converting the cover sound signal a varying dc voltage is a means to adjust the varying dc voltage level in a fashion that has consistent response over a voltage range of 40 db. H03G3/32- Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level.H03G3/30- Automatic control in amplifiers having semiconductor devices.H03G3/00- Gain control in amplifiers or frequency changers without distortion of the input signal.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Mikell Bruce T filed Critical Mikell Bruce T Priority to US07/711,933 priority Critical patent/US5245666A/en Application granted granted Critical Publication of US5245666A publication Critical patent/US5245666A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Mikell Original Assignee Mikell Bruce T Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/711,933 Inventor Bruce T. ![]() Google Patents Personal subliminal messaging systemĭownload PDF Info Publication number US5245666A US5245666A US07/711,933 US71193391A US5245666A US 5245666 A US5245666 A US 5245666A US 71193391 A US71193391 A US 71193391A US 5245666 A US5245666 A US 5245666A Authority US United States Prior art keywords sound subliminal message level signal Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5245666A - Personal subliminal messaging system US5245666A - Personal subliminal messaging system ![]()
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