Patent ID: 6272073
Filing Date: 2001-08-07
Classification: H04B

Abstract:
An underwater location and communication device for use by a diver, said device comprising:an outer case or housing that is durable and waterproof;a plurality of manually operable switches attached to said housing and used by said diver to operate said device;an electronic display also attached to said housing and readable from the exterior of said housing by said diver;a fastening means attached to said housing and used to permit said device to be worn by said diver;a plurality of transmitter/receiver pairs affixed to said housing and employed to emit and intercept an ultrasonic wave;an electric power source contained within said housing;a plurality of warning means enclosed in said housing and employed to alert said diver when a distance limit selected by said diver between said device and a companion device worn and operated by a companion diver is exceeded;a microcontroller circuit in electrical communication with said plurality of manually operable switches, said electronic display, said electric power source and said plurality of warning means; anda transceiver circuit in electrical communication with said plurality of transmitter/receiver pairs and said microcontroller circuit.