Abstract: There is provided a water sterilizer. The water sterilizer includes an ultraviolet light source electrically connected to an electrical power source, a light-protective housing encasing the lamp and having an inlet and an outlet, and a pump to draw the water into the housing to expose the water to ultraviolet light. Electric power supplied to the ultraviolet light source has an operating potential of not greater than 24 Volts. There is also provided a method for water sterilization.

Abstract: An apparatus and method for simultaneously transmitting a digital control signal and an analog signal from a sending circuit to a receiving circuit are described. An analog signal (e.g., a differential data signal) is received. A digital signal (e.g., a digital logic signal) is also received. The digital signal is then combined with the analog signal to generate an analog signal with an embedded digital signal. The analog signal with an embedded digital signal is then transmitted through a common communication link (e.g., a pair of conductors). The digital signal is then recovered from the analog signal with an embedded digital signal without affecting the recovery of the analog signal.