Electronic tide meter, spring tide day calculating method, and recording medium for the same
June 8, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTide calculating and display device Tidal watch Electronic tide watch Tide indicator system Measuring apparatus having an indicator for displaying tide or tidal current data Nautical clock apparatus and methods Portable Astronomic/meteoric observation system Nautical clock apparatus and methods Tide calculator Patent #: 5731573 InventorAssigneeApplicationNo. 328140 filed on 06/08/1999US Classes:702/5Topography (e.g., land mapping)ExaminersPrimary: McElheny, Donald Jr.Attorney, Agent or FirmForeign Patent References
International ClassG06F 019/00Foreign Application Priority Data1998-06-09 JPAbstractA tide meter for calculating a spring tide day. First, a moon age value is determined depending on a designated calendar. The moon age value includes at least one of the day of the new moon and the day of the full moon. Tidal data is stored that is specific for each geographic location, and this data is used in calculating the spring tide day for a selected geographic area. Since the time of the rising and falling of the tide depends on geographic location, simply calculating a spring tide day from the position of the moon and sun may not be accurate for a specific geographic location. Accordingly, the stored tidal data that corresponds to a selected geographic area is included in the spring tide day calculation. Thus, the accuracy of the spring tide day calculation is increased for the particular selected geographic area. | |
