Abstract: An approach is disclosed for transmitting customizable audio signals through teeth activated by pressure. An intraoral apparatus is provided with a pressure switch controlled by receiving pressure. The pressure switch holds a state where the state is one of on and off. The intraoral apparatus includes a power source, an audio element, a control element, and a bone conduction element. A customizable audio signals is received by the audio element. When pressure is received by the pressure switch when the state is off, the control element can be charged from the power source with a charge. The charge enables sending the customizable audio signal through the bone conduction element. In some configuration the charge is needed, as without the charge the customizable audio signals is not transmitted.

Abstract: An approach is disclosed for transmitting customizable audio signals through teeth. An intraoral apparatus is provided with a teeth movement detection element to detect teeth movement. The apparatus holds a state where the state is one of on and off. The apparatus includes a power source, an audio element, a control element, and a bone conduction element. A customizable audio signals is received by the audio element. When teeth movement is detected when the state is off, the customizable audio signals are transmitted through the bone conduction element for a period of time.

Abstract: This invention is directed to a digital wavelength calibration system for a spectrophotometer, which includes a photodiode array that forms an output detector for the spectrophotometer, a light source for generating at least one reference emission line of known peak wavelength, a computer controlled mechanism for causing the peak of said reference line to fall in close proximity to the center of a preselected pixel of said photodiode array, peak location computing apparatus for computing the exact position data of the peak relative to the pixel center in terms of the pixel spacing and the ordinal number of the preselected pixel and for retaining this position data for subsequent wavelength computation, wavelength identification computing apparatus for computing the numerical relationship data of the ordinate number of each pixel to the wavelength falling on that pixel and for retaining this relationship data for subsequent correlation with data generated by the pixel, and apparatus for computational processin