Patent ID: 7543241
Filing Date: 2009-06-02
Classification: G01C,G06F,Y02A

Abstract:
1. A navigational and marine device comprising: a sonic transducer for sensing a depth of a body of water and for generating a depth signal representative of the depth; a GPS antenna for sensing GPS satellite signals; a display screen; a computing device coupled with the transducer, the GPS antenna, and the display for— a scrolling key coupled with the computing device, the scrolling key and the computing device being operable to manipulate a cursor displayed on the display screen for permitting a user to selectively adjust a relative portion of the display screen occupied by the first display area and the second display area, wherein each display area is constrained as to a relative portion of the display screen that it may occupy it, and wherein at least one of the display areas may be zoomed independently of the other display area; and a single housing for housing the display screen, the computing device, and the scrolling key.