Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1998-03-18
2001-05-15
Maung, Nay (Department: 2744)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S090300, C455S550100, C455S569200, C455S572000, C455S575100
Reexamination Certificate
active
06233467
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
The present invention relates in general to the mobile communications field and, in particular, to an improved display for a mobile phone.
2. Description of Related Art
When conventional mobile phones are used in dimly-lit environments (e.g., inside motor vehicles, etc.), poor lighting, glare and reflections typically make the phones' displays difficult to read. This readability problem is exacerbated if the phone is being operated in a hands-free mode. For example, in an automobile, a mobile phone's display is more difficult for a driver to read due to the relatively long distance between the vehicle-mounted hands-free adaptor and the driver's eyes.
A conventional solution to this readability problem for mobile phone displays is to activate backlighting to illuminate the display when the phone is externally powered. As such, the backlit illumination highlights the displayed text and serves to make it more readable. However, a problem that still occurs with conventional mobile phone displays (even with backlit illumination) is that the text used on the conventional displays is too small to be clearly discernible unless the display is very close to the user. Nevertheless, as described below, the present invention successfully resolves this readability problem.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide a mobile phone display that is clearly readable in a poorly-lit environment.
It is another object of the present invention to provide a mobile phone display that a driver of a motor vehicle can easily see when the phone is being operated in a hands-free mode.
It is yet another object of the present invention to provide a mobile phone display that automatically adjusts to compensate for a poorly-lit or hands-free environment.
The foregoing and other objects are achieved by a mobile phone with a display that automatically uses a much larger, bolder font than normal, whenever, for example, external power is applied or the mobile phone is operated in a hands-free mode.
An important technical advantage of the present invention is that the mobile phone display with larger, bolder font is clearly discernible in poorly-lit environments.
Another important technical advantage of the present invention is that the mobile phone display is easy to see and read when the phone is operated in a hands-free mode.
Still another important technical advantage of the present invention is that the mobile phone display is readable in those situations where poor lighting, glare or reflections exist.
Yet another important technical advantage of the present invention is that the readability of the mobile phone display is automatically adjusted to compensate for situations in which poor lighting conditions are likely to exist.
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Patent Abstracts of Japan, JP 09 252342 A (Mitsubishi Electric Corp.); Sep. 22, 1997, abstract.
Davis Temica M.
Ericsson Inc.
Jenkens & Gilchrist P.C.
Maung Nay
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