Vessel traffic system

Details Vessel traffic system Vessel traffic system

1996-10-16

1999-07-27

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Navigation

701208, 701212, 340990, 340995, G06F16500

Patent

active

059283041

ABSTRACT:
A method and apparatus for merging specifies an inset chart shape and at least two chart scale values. A chart retriever retrieves data files defining a low-scale chart and a high-scale chart, and a chart processor identifies portions of the low-scale data files from which data is deleted and merges the modified low-scale data files with high-scale data files which provide high-scale data for the inset chart shape.

REFERENCES:
patent: 5369589 (1994-11-01), Steiner
patent: 5377102 (1994-12-01), Nishiishigaki
patent: 5444618 (1995-08-01), Seki et al.
patent: 5543788 (1996-08-01), Mikuni

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