Abstract: A method for monitoring at least one sensor is provided. In this context, error words are transmitted from the sensor to the control unit and additional different information characterizing error images is used to enable an adapted response to these parameters by the processor. Extraordinary operating states are indicated in this context in addition to errors. The different error images are recorded in the control unit application phase and result in error image-specific system reactions via a look-up table.

Abstract: Isolated cinacalcet carbamate, processes for the preparation thereof, and processes for the use of cinacalcet carbamate as a reference marker and standard are provided. Also provided are cinacalcet salts substantially free of cinacalcet carbamate, and processes for the preparation thereof.

Abstract: In an optical filter, a thin film is formed by laminating low refractive index layers alternatingly from a substrate side with high refractive index layers. The thin film is provided with first, second, and third laminated portions. In the first laminated portion, the refractive indices of the high refractive index layers become gradually higher. In the second laminated portion, the refractive indices of the high refractive index layers are substantially equal to the highest refractive index of the high refractive index layers constituting the first laminated portion. In the third laminated portion, the refractive indices of the high refractive index layers become gradually lower, and the refractive indices of the low refractive index layers are substantially equal to the lowest refractive index of the low refractive index layers constituting the second laminated portion.