Navigation system
First Claim
1. A navigation system comprising:
- a present position detecting device for detecting a present position;
a first memory device for reading map data from a record medium in which the map data is recorded;
a second memory device of non-volatile type, to which the map data can be written and from which the map data can be read;
a navigation controlling device for controlling a navigation operation in correspondence with the detected present position by using the map data, and sending a transfer command to transfer the map data from said first memory device to said second memory device at a predetermined timing; and
a transfer interface for controlling an operation of reading the map data from said record medium by said first memory device and an operation of transferring the map data to said second memory device, in accordance with the sent transfer command.
1 Assignment
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Accused Products
Abstract
A navigation system is provided with: a present position detecting device (16, 17) for detecting a present position; a first memory device (14) for reading map data from a record medium (1) in which the map data is recorded; a second memory device (15) of non-volatile type, to which the map data can be written and from which the map data can be read; a navigation controlling device (11) for controlling a navigation operation in correspondence with the detected present position by using the map data, and sending a transfer command to transfer the map data from the first memory device to the second memory device at a predetermined timing; and a transfer interface (30) for controlling an operation of reading the map data from the record medium by the first memory device and an operation of transferring the map data to the second memory device, in accordance with the sent transfer command.
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Citations
21 Claims
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1. A navigation system comprising:
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a present position detecting device for detecting a present position;
a first memory device for reading map data from a record medium in which the map data is recorded;
a second memory device of non-volatile type, to which the map data can be written and from which the map data can be read;
a navigation controlling device for controlling a navigation operation in correspondence with the detected present position by using the map data, and sending a transfer command to transfer the map data from said first memory device to said second memory device at a predetermined timing; and
a transfer interface for controlling an operation of reading the map data from said record medium by said first memory device and an operation of transferring the map data to said second memory device, in accordance with the sent transfer command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A navigation system comprising:
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a present position detecting device for detecting a present position;
a first memory device for reading map data from a record medium in which the map data is recorded;
a second memory device of non-volatile type, to which the map data can be written and from which the map data can be read;
a transfer interface for controlling an operation of reading the map data from said record medium by said first memory device or said second memory device, in accordance with a read command to read the map data; and
a navigation controlling device for controlling a navigation operation in correspondence with the detected present position by using the map data, which is read under a control of said transfer interface, and sending the read command at a predetermined timing. - View Dependent Claims (21)
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Specification