Car navigation apparatus, PC card for information updating, and information updating method of car navigation apparatus
An in-vehicle navigation device and information update technology, applied in directions such as navigation, measurement device, surveying and navigation, etc., can solve the problems of longer period, larger device size, and inability for users to use the in-vehicle navigation device, so as to reduce costs and shorten usage. The effect of interruption time
Inactive Publication Date: 2007-07-11
MITSUBISHI ELECTRIC CORP
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Problems solved by technology
[0007] In this way, since the hard disk device must be removed and sent to the device manufacturer for reinstallation every time it is rewritten, the period required for rewriting becomes longer. During this time, the user cannot use the car navigation device, and the cost of information update is also high.
[0008] Furthermore, in the case of updating information via CDROM, DVD, etc., since the car navigation system itself is equipped with a drive such as CDROM, DVD, etc., the size of the device becomes large, and a plurality of disks for updating are required. There are problems with miniaturization, economy, and convenience of use
Method used
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Embodiment 1
[0016] FIG. 1 shows the structure of a car navigation system according to Embodiment 1 of the present invention.
[0017] In FIG. 1, 1 is a car navigation device, 10 is a hard disk device equipped in the car navigation device 1, and 11 is an internal controller that performs various processing and control of the car navigation device 1, and is usually called a microcomputer in many cases. controller. 12 is the hard disk signal line that connects the hard disk device 10 and the internal controller 11, and usually uses an ATA (ATA Attachment; ANSI NCITS 340-2000, INFORMATIONTECHNOLOGY-AT ATTACHMENT WITH PACKET INTERFACE (ATA / ATAPI-5)) bus in most cases. 13 is arranged on this hard disk signal line 12 and carries out the switch A of signal line 12 on-off, and 14 is the PC card slot that can insert general-purpose PC card, and 2 is the information used when rewriting the information stored in the hard disk device 10. The PC card for updating is made to be able to be inserted into...
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The invention provides an apparatus capable of conveniently updating information stored in the mass storage device, without discharging the mass storage device in a car navigation apparatus, e.g. hardpan device. The car navigation apparatus comprises a PC card slot into which a PC card that communicates with an external device through the internal controller is inserted; a PC card controller that controls the PC card; a switch A installed on a storage device signal line connecting the mass storage device and the internal controller; a switch B installed on a PC card signal line connecting the PC card controller and the PC card slot; a bypass signal line that connects the storage device signal line and the PC card signal line; and a switch C installed on the bypass signal line. Opening and closing of the switches A, B, and C are controlled according to kind of the PC cardinserted in the PC card slot and whether the PC card is inserted in the PC card slot.
Description
technical field [0001] The present invention relates to a car navigation device equipped with a mechanism capable of easily updating information stored in a large-capacity storage device such as a built-in hard disk device, an information updating PC card for updating information, and an information updating method of the car navigation device. Background technique [0002] A car navigation device equipped with a large-capacity storage device such as a hard disk device stores and stores a large amount of information such as map information and utilizes it. However, since this information becomes obsolete with time, it is necessary to update the information sequentially or as needed. [0003] In the case of a car navigation device equipped with a CDROM drive or a DVD drive, updating of information can be performed by reading update information via these drives and updating information stored in a hard disk device. However, there are also many car navigation devices that are n...
Claims
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IPC IPC(8): G01C21/00G01C21/26G06F9/445
CPCG01C21/26
Inventor 中村稔
Owner MITSUBISHI ELECTRIC CORP