JP2539674Y2 - Map display device - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a map display device, and particularly to a map display device capable of displaying a map screen using a normal television.

2. Description of the Related Art Conventionally, a map display device is configured to include a monitor TV, and various operations such as selection of a map to be displayed are performed by an infrared touch panel or a switch provided on an outer frame of the monitor TV.

[Problems to be Solved by the Invention] In the above-described conventional device, the monitor TV is usually fixed in a car or the like, and the map display device is connected to the monitor TV.
Could not be used away from

The present invention has been made in view of the above points, and a purpose thereof is to provide a map display device capable of displaying a map screen using any television having a video input terminal. To provide.

[Means for Solving the Problems] A map display device according to the present invention includes a database driver for accessing a map database, a frame memory for storing image data to be displayed on a monitor TV, the accessed map data, Means for storing function selection menu screen data in the frame memory, and a remote control operation unit for moving a cursor on the function selection menu displayed on the screen of the monitor TV and selecting a function designated by the cursor. The map display device is provided with a remote control receiving unit for receiving a signal from the remote control operating unit, a unit for converting data stored in the frame memory into a video signal and outputting the video signal, and having a video terminal instead of the monitor TV. The above function selection menu is also displayed on the Is moved so that the function designated by the cursor can be selected and executed.

[Operation] If the NTSC video signal output from the map display device of the present invention is transferred to an ordinary television and the function selection menu displayed on the screen is selected by moving the cursor,
The selected function is executed, and a target map screen or the like is displayed.

In this manner, for example, even if the monitor TV is fixed in the vehicle compartment, it is possible to bring only the map display device into the room and use it.

Embodiment A map display device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a map display device 12 according to an embodiment of the present invention.

In the figure, reference numeral 1 denotes a microcomputer which accesses the RAM 3 and the ROM 4, reads a signal output from the key input decoder 13, and follows a program written in the ROM 4
It controls the entire device, such as controlling the database driver 5 and the CRT controller 2.

The map database 11 is a CDROM, and the map data stored therein is read by the database driver 5 and stored in the RAM 3.

An infrared signal transmitted from the remote control operation unit 10 is received by a remote control reception unit 14 provided in the map display device main body 12, is decoded by a key input decoder 13, and is input to the microcomputer 1.

Reference numeral 7 denotes a frame memory for storing data displayed on each part of the television screen.

Reference numeral 2 denotes a CRT controller which cooperates with the microcomputer 1 to input data stored in the RAM 3 to the frame memory 7 and to control the frame memory control circuit 6.

The frame memory control circuit 6 outputs the address of the frame memory 7 in synchronization with the raster,
Outputs horizontal and vertical synchronization signals to the SC conversion circuit.

From the frame memory 7, serial dot data corresponding to four channels of R, G, B, and I according to the scanning of the screen are output, input to the NTSC conversion circuit 8, and output to the NTSC output terminal 9.

Video data output from the NTSC output terminal 9 is displayed on a monitor TV.

 FIG. 2 shows a screen displayed on the monitor TV.

The function menu shown in the figure is always displayed on the screen, and the map is displayed according to the selection of the function.

 The function execution operation will be described with reference to FIG.

First, in step S1, initial settings of the memory and the flag are performed. Next, in step S2, data is read from the database driver 5, and the process proceeds to step S3.

In step S3, the function menu and the map data displayed on the screen are written into the frame memory, and the written data is displayed on the monitor TV.

Next, the process proceeds to step S4, where it is determined whether or not the select switch of the remote control operation unit 10 has been pressed.If the select switch has not been pressed, the process proceeds to step S6.If the select switch has been pressed, the process proceeds to step S6. Move to S5.

In step S5, the cursor is moved, and the process proceeds to step S6.

In step S6, it is determined whether or not the return switch has been pressed.
The process moves to S7, and if the return switch has not been pressed, step S4 is repeated.

In step S7, the function displayed on the cursor (reading of map database, screen display of selected map, etc.)
Is executed and the process proceeds to step S4.

In this way, an arbitrary function of the map display device is selected and executed.

[Effects of the Invention] According to the map display device of the invention, it is possible to display a map screen using an arbitrary television having a video input terminal.

Further, the operation of the apparatus is very easy, since it only requires selecting the function menu displayed on the screen.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a map display device according to an embodiment of the present invention, FIG. 2 is a diagram showing a display screen of the map display device, and FIG. 3 is a flowchart showing the operation of the map display device. 1. Microcomputer, 2. CRT controller, 3.
... RAM, 4 ... ROM, 5 ... database driver, 6 ... frame memory control circuit, 7 ... frame memory, 8
... NTSC conversion circuit, 9 ... NTSC output terminal, 10 ... Remote control operation unit, 11 ... Map database, 12 ... Map display device, 13 ... Key input decoder, 14 ... Remote control receiving unit.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshinori Horie 2-2-19 Tamagawa, Ota-ku, Tokyo Inside Einbrick Co., Ltd. (56) References JP-A-62-14686 (JP, A) JP-A-62 153889 (JP, A) JP 60-50282 (JP, B2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A database driver for accessing a map database, a frame memory for storing image data to be displayed on a monitor TV, and the accessed map data and function selection menu screen data stored in the frame memory. Means for moving a cursor on the function selection menu displayed on the screen of the monitor TV to select a function designated by the cursor. A remote control receiving unit for receiving a signal, and means for converting data stored in the frame memory into a video signal and outputting the video signal are provided. The function selection menu is displayed also on a television having a video terminal instead of the monitor TV, Move the cursor on the function selection menu and specify the cursor A map display device characterized in that a function to be performed can be selectively executed.