Novel compounds and methods for preparing same, immunopotentiating compositions, and a method for potentiating the immune system of a host animal. Through the embodiments of the present invention, an SNR of the signal receiving device can satisfy the setting requirement, that is, the test condition that an SNR does not contain a precoding gain, so that a subsequent test is valid. The multi-value oversampling part binarizes the serial received data being equalized by multiple threshold values, conducts oversampling, and generates the multi-value sampling data. The lighting device further includes multiple modes of operation having a plurality of switches that provide control in various lighting modes. Also, an anhydrous antiperspirant composition.