Dive computer with global positioning system receiver

Abstract

Dive computers and methods of logging information including position, audio and video information are disclosed. In one embodiment, the invention includes a processor, a global positioning system receiver connected to the processor and a pressure transducer connected to the processor.

1 - 20 . (canceled) 
     
     
         21 . A dive computer comprising:
 a processor;   a global positioning system receiver connected to the processor;   a display connected to the processor;   a pressure transducer connected to the processor; and   clock circuitry connected to the processor;   wherein the processor is configured to determine time using the clock circuitry;   wherein the processor is configured to determine depth of submersion using the pressure transducer;   wherein the processor is configured to generate position information using the global positioning system receiver;   wherein the processor is configured to provide depth and time information using the display; and   wherein the processor is configured to combine the time, depth, and position information into a dive log.   
     
     
         22 . The dive computer of  claim 21 , wherein the processor is configured to calculate the amount of time a diver can remain at a particular depth without the need for decompression stops. 
     
     
         23 . The dive computer of  claim 21 , wherein the processor is configured to calculate a decompression stop depth and a stop duration. 
     
     
         24 . The dive computer of  claim 21 , further comprising a temperature sensor, wherein the processor is configured to determine water temperature using the temperature sensor. 
     
     
         25 . The dive computer of  claim 21 , wherein the processor is configured to calculate when a diver can safety board an airplane. 
     
     
         26 . The dive computer of  claim 21 , further comprising:
 a memory system connected to the processor;   wherein the memory system comprises a plurality of memory units; and   wherein at least one memory unit is removable from the dive computer.   
     
     
         27 . The dive computer of  claim 21 , further comprising:
 a communications port connected to the processor; and   wherein the communications port is configured to communicate with external devices.   
     
     
         28 . The dive computer of  claim 21 , further comprising:
 an impeller connected to the processor; and   a compass connected to the processor;   wherein the processor is configured to determine speed and bearing using the impeller and compass.   
     
     
         29 . The dive computer of  claim 21 , further comprising a buoy including a G.P.S. antenna connected to the global. positioning system receiver via a communication cable. 
     
     
         30 - 40 . (canceled) 
     
     
         41 . A dive computer, comprising:
 a processor;   a pressure transducer connected to the processor;   clock circuitry connected to the processor; and   a global positioning system receiver separate from the processor and configured to generate position information;   wherein the processor is configured to generate depth and time information using the pressure transducer and the clock circuitry;   wherein the processor is configured to download position information from the global positioning system receiver; and   wherein the processor is configured to combine the depth and time information with the position information.   
     
     
         42 . The underwater computing system of  claim 41 , wherein the processor downloads information from the global positioning system receiver over a wireless link. 
     
     
         43 . The underwater computing system of  claim 41 , wherein the processor downloads information from the global positioning system receiver over a wired link. 
     
     
         44 . The underwater computing system of  claim 41 , wherein the processor, pressure transducer and clock circuitry are configured to be worn on the wrist of the diver. 
     
     
         45 . The underwater computing system of  claim 41 , wherein the global positioning system receiver is configured to attach to the diver or a diving apparatus attached with the diver. 
     
     
         46 . The dive computer of  claim 41 , wherein the processor is configured to calculate the amount of time a diver can remain at a particular depth without the need for decompression stops. 
     
     
         47 . The dive computer of  claim 41 , wherein the processor is configured to calculate a decompression stop depth and a stop duration. 
     
     
         48 . The dive computer of  claim 41 , further comprising a temperature sensor, wherein the processor is configured to determine water temperature using the temperature sensor. 
     
     
         49 . The dive computer of  claim 41 , wherein the processor is configured to calculate when a diver can safely board an airplane. 
     
     
         50 . The dive computer of  claim 41 , further comprising:
 a memory system connected to the processor;   wherein the memory system comprises a plurality of memory units; and   wherein at least one memory unit is removable from the dive computer.