Patent ID: 6972715
Filing Date: 2005-12-06
Classification: B63C,G01S,G06F

Abstract:
1. A position location device comprising: a waterproof housing; a processor enclosed within the waterproof housing; a global positioning system receiver enclosed within the waterproof housing and connected to the processor; and a pressure transducer connected to the processor; clock circuitry connected to the processor and enclosed within the waterproof housing; wherein the global positioning system receiver includes an antenna enclosed within the waterproof housing; and wherein the pressure transducer is configured to measure depth under water; wherein the processor is configured to obtain at least one measurement of position using the global positioning system when the position location device is above water; wherein the processor is configured to obtain at least one measurement of depth and time using the pressure transducer and the clock circuitry when the location device is submerged; wherein the processor is configured to record a profile of the dive including measurements of multiple positions and multiple depths and times.