Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2000-05-01
2001-10-16
Cuchlinski, Jr., William A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
C701S211000, C701S201000, C340S990000, C340S995190
Reexamination Certificate
active
06304820
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application is based upon Japanese Patent Application No. Hei. 11-134100 filed on May 14, 1999, the contents of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to display apparatuses, and particular to a display unit for a navigation system and a navigation system using the same.
2. Related Art
Recently, a navigation system has been mounted on a vehicle. It is preferable for user of the navigation system to brows Internet information (e.g., information written in HTML (Hyper Text Markup Language) format) by using a display unit of the vehicular navigation system. It can be realized by integrating a program of a browser, which is software to brows (read) the HTML data, into the vehicular navigation system.
In a case where text data (character string data) of the Internet information is displayed on the display unit of the vehicular navigation system, as shown in
FIG. 5
, it might be thought to display the text data at entire area, on which the text data can be displayed, of a display screen A of the display unit. Furthermore, when an amount of the text data is larger than a predetermined value, which is a maximum amount of the text data be displayed at one time, it might be thought to display the text data by vertically scrolling the text data.
However, the display unit for the vehicular navigation system is small compared to a display unit for a personal computer or the like. Furthermore, a passenger sat on a front passenger seat has to see the display unit from a portion having a large visual angle with respect to a normal direction of the display surface. In such a case, it might be hard to see the text data at a peripheral portion of the display screen due to its viewing angle.
Here, when a map is displayed on the display screen, the map can be easily scrolled in lateral direction or in vertical direction. Therefore, even when it is hard to see the map at a peripheral portion of the screen, the map can be easily recognized by laterally scrolling the screen. On the contrary, when the text data of the Internet information is displayed on the display screen, since the screen can be vertically scrolled but cannot be laterally scrolled, it would be hard to see the text data at a peripheral portion of the display screen.
It would be thought to laterally scroll the text data, when the Internet information is displayed on the display screen. However, since each sentence of the text data continues from one peripheral portion to another peripheral portion when a line is changed, when the text data is laterally scrolled to one side, the text data at another side will be disappeared. Hence, it would be much harder to recognize the Internet information. Therefore, the laterally scrolling the text data would be not an adequate countermeasure to overcome the above-described inconvenience.
SUMMARY OF THE INVENTION
This invention has been conceived in view of the background thus far described and its object is to provide a display unit that information displayed thereon can be clearly recognized from any position, when information such as texts or images are displayed on a relatively small display screen.
According to the present invention, the display controller sets a display restriction area at at least one of peripheral portions in a lateral direction in the display screen, the display restriction area has a predetermined width toward a center potion of the display screen from a peripheral end of the display screen.
As a result, the general-purpose data is not displayed at peripheral portions in the display screen at which it is hard to be recognized. As a result, user can clearly recognize all of the general-purpose data displayed on the display screen.
REFERENCES:
patent: 6121900 (2000-09-01), Takishita
patent: 6243646 (2001-06-01), Ozaki et al.
patent: 2-302792 (1990-12-01), None
patent: 05-316541 (1993-11-01), None
patent: 10-340073 (1998-12-01), None
Goto Yoshifumi
Tsutsuki Shinichi
Cuchlinski Jr. William A.
Denso Corporation
Law Office of David G. Posz
Marc-Coleman Marthe Y.
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