Measuring apparatus having an indicator for displaying tide or tidal current data
March 4, 2012. 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 References 3745313 Electronic chart system Apparatus for predicting the exact time of currents in terms of the year, month, day and hour Navigation system including an integrated electronic chart display Underwater detection system System and method for measuring ocean surface currents at locations remote from land masses using synthetic aperture radar Analyzing a hydrocarbon reservoir by determining the response of that reservoir to tidal forces Tide calculating and display device Patent #: 5115417 InventorAssigneeApplicationNo. 778860 filed on 03/04/1992US Classes:701/219, Using Loran or Shoran or Decca equipment367/113, Cathode-ray tube701/208, For use in a map data base system701/213Using Global Positioning System (GPS)ExaminersPrimary: Black, Thomas G.Assistant: Zanelli, Michael J. International ClassesG01S 007/62G01P 005/00 Foreign Application Priority Data1990-05-07 JPAbstractA measuring apparatus such as a fish school detecting apparatus or a navigation apparatus which displays tide or tidal current data and is installed on a ship. The measuring apparatus comprises a transmitter/receiver for emitting ultrasonic search signals and receiving echo signals resulting from the search signals, a signal processor for processing output signals of the transmitter/receiver to produce signals representative of underwater conditions, a first memory for storing the signals outputted by the signal processor, a second memory having stored tide or tidal current data corresponding to ages of the moon in relation to points on the earth, a position signal inputting device for inputting latitude and longitude signals representative of a desired point on the earth, a time inputting device for inputting data representative of a day and an hour, a data searching device for searching relevant tide or tidal current data in the second memory based on inputted latitude and longitude and a day and hour data and reading the searched data, and an indicator for displaying tide or tidal current data searched by the data searching device or signals outputted by the first memory.Other References
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