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 . A position location device comprising: 
 a processor;    a global positioning system receiver connected to the processor; and    a pressure transducer connected to the processor.    
     
     
         2 . The position location device of  claim 1 , wherein the processor and global positioning system are contained within a waterproof casing.  
     
     
         3 . The position location device of  claim 1 , further comprising: 
 clock circuitry connected to the processor; and    memory connected to the processor; and    at least one input/output device connected to the processor.    
     
     
         4 . The position location device of  claim 3 , wherein one of the input/output devices is a microphone.  
     
     
         5 . The position location device of  claim 3 , wherein one of the input/output devices is a keypad including at least one button.  
     
     
         6 . The position location device of  claim 1 , further comprising: 
 a flow meter connected to the processor; and    a compass connected to the processor.    
     
     
         7 . The position location device of  claim 6 , wherein flow meter is an impeller.  
     
     
         8 . The position location device of  claim 6 , further comprising a buoy including a G.P.S. antenna connected to the processor via a communication cable.  
     
     
         9 . The position location device of  claim 6 , further comprising: 
 a pressure transducer connected the processor; and    wherein the pressure transducer is configured to generate a signal indicative of air pressure within an air tank.    
     
     
         10 . The position location device of  claim 1 , further comprising a digital camera connected to the processor.  
     
     
         11 . A position location device comprising: 
 means for measuring latitude, longitude;    means for measuring depth underwater;    means for measuring time; and    means for recording measurements of latitude, longitude, depth and time.    
     
     
         12 . The position location device of  claim 11 , further comprising means for annotating recorded measurements of latitude, longitude, depth or time.  
     
     
         13 . The position location device of  claim 11 , further comprising means for identifying a particular measurement of latitude, longitude, depth or time as being associated with a particular point of interest.  
     
     
         14 . The position location device of  claim 11 , wherein the time includes information concerning day, month and year.  
     
     
         15 . The position location device of  claim 11 , further comprising: 
 means for measuring water speed; and    means for measuring bearing.    
     
     
         16 . The position location device of  claim 15 , further comprising means for measuring air time remaining.  
     
     
         17 . A dive computer comprising: 
 a processor;    memory connected to the processor for storing data;    a microphone connected to the processor; and    a pressure transducer connected to the processor.    
     
     
         18 . The dive computer of  claim 17 , wherein: 
 the microphone is configured to generate a signal indicative of sound; and    the processor is configured to store a digital representation of the signal generated by the microphone in memory.    
     
     
         19 . The dive computer of  claim 18 , wherein the processor is configured to convert the signal indicative of sound into signals indicative of the particular word or words that were spoken to generate the sound.  
     
     
         20 . The dive computer of  claim 18 , wherein: 
 the signal generated by the microphone is analog; and    the connection between the microphone and the processor includes an analog-to-digital converter.    a pressure transducer connected to the processor.