Patent ID: 7872947

Claim:
An underwater wireless data communication system, comprising: a memory that stores a first location data; a sensor array for measuring an underwater environment with a plurality of sensors, a sensor generating and outputting a first measurement data; a controller operable to receive the first measurement data, retrieve the first location data, and output the first measurement data and the first location data as a data signal; a data transmitter operable to amplify the data signal up to a predetermined voltage level and transform the amplified data signal into a first ultrasound signal for emission into water; and a data receiver operable to receive a second ultrasound signal and obtain a second measurement data and a second location data from the second ultrasound signal, wherein the data receiver comprises: an ultrasound receiver operable to receive the second ultrasound signal having the second measurement data and the second location data; a second amplifier operable to amplify the second ultrasound signal; a first comparator operable to receive the amplified second ultrasound signal and remove a noise from the amplified second ultrasound signal based on a first reference voltage; an envelop detector operable to receive the amplified second ultrasound signal without the noise and detect a predetermined envelop to obtain an original data signal; and a second comparator operable to convert the original data signal into a digital signal based on a second reference voltage, wherein the first comparator, the envelop detector, and the second comparator are implemented on a single chip.