CA2273730A1 - Electronic tide meter, method for calculating a high/low tide time and recording medium with a program for executing the same method - Google Patents
Electronic tide meter, method for calculating a high/low tide time and recording medium with a program for executing the same method Download PDFInfo
- Publication number
- CA2273730A1 CA2273730A1 CA 2273730 CA2273730A CA2273730A1 CA 2273730 A1 CA2273730 A1 CA 2273730A1 CA 2273730 CA2273730 CA 2273730 CA 2273730 A CA2273730 A CA 2273730A CA 2273730 A1 CA2273730 A1 CA 2273730A1
- Authority
- CA
- Canada
- Prior art keywords
- tide
- data
- time
- time interval
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Electric Clocks (AREA)
Abstract
An electronic tide meter which calculates a high tide time and low tide time with accuracy, and a high tide/low tide calculating method are disclosed. A tide level estimating equation is fixed by performing calendar input and selection of a region through an input section and reading tide data of the selected region from a ROM stored with tide data for each region. First tide data is determined with a first time interval from the tide level estimating equation in the CPU, and further second tide data is determined with a second time interval shorter in time interval than the first time interval. Accordingly, from the first tide level data a range is extracted in which the sign in displacement between those of the first tide level data so that tide data at a fine time interval can be determined only for the range. From the tide level data a high tide time and low tide time is calculated with accuracy.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10-161177 | 1998-06-09 | ||
| JP10161177A JP2958563B1 (en) | 1998-06-09 | 1998-06-09 | Electronic tide gauge, high tide low tide time calculation method, and recording medium of program for executing the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2273730A1 true CA2273730A1 (en) | 1999-12-09 |
| CA2273730C CA2273730C (en) | 2008-03-18 |
Family
ID=31087246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2273730 Expired - Fee Related CA2273730C (en) | 1998-06-09 | 1999-06-08 | Electronic tide meter, method for calculating a high/low tide time and recording medium with a program for executing the same method |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA2273730C (en) |
| DE (1) | DE69923730T2 (en) |
| HK (1) | HK1024528A1 (en) |
-
1999
- 1999-06-08 DE DE69923730T patent/DE69923730T2/en not_active Expired - Lifetime
- 1999-06-08 CA CA 2273730 patent/CA2273730C/en not_active Expired - Fee Related
-
2000
- 2000-06-28 HK HK00103890A patent/HK1024528A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HK1024528A1 (en) | 2000-10-13 |
| DE69923730T2 (en) | 2006-03-16 |
| CA2273730C (en) | 2008-03-18 |
| DE69923730D1 (en) | 2005-03-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170608 |