Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Reexamination Certificate
1998-06-19
2001-08-07
Luu, Matthew (Department: 2762)
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
C455S557000
Reexamination Certificate
active
06271865
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cellular phone handset, and more particularly, to a cellular phone handset which can display a variety of special characters.
2. Description of the Prior Art
Many cellular phone handsets such as a GSM (Global System of Mobile communications) wireless handset can function as a phone book. A handset which serves this function usually stores a few thousand frequently used Chinese characters in its memory. However, most of the characters stored in the memory may rarely or never be used, thus they waste a lot of memory space. On the other hand, if a user needs to use a Chinese character which is not pre-stored in the memory, the cellular phone handset won't be able to display the character correctly. Besides, if the user needs to use other kinds of graphic characters such as Japanese, Korean or simplified Chinese, other fonts of characters or special symbols and graphics, the handset cannot store all these characters and symbols into its limited memory. Even if the handset has stored a lot of character data in its memory, it still cannot meet all users' different needs. Therefore, using the memory more efficiently becomes an important issue.
A good cellular phone handset has to be compact, thus it is sometimes connected to a computer for editing its phone book. The computer uses its I/O device to provide a better data editing interface for the handset. After the phone book data has been edited, the computer will transmit the generated character codes through its I/O port to the handset. The handset then retrieves character fonts from its memory according to the received character codes, and displays the characters on a displaying device such as an LCD. If some special characters, fonts or symbols are not pre-stored in the memory of the handset, the handset cannot correctly display the special characters, fonts or symbols.
SUMMARY OF THE INVENTION
It is therefore an objective of the present invention to provide a cellular phone handset which can display a wide variety of characters to solve the above mentioned problem.
It is therefore another objective of the present invention that the cellular phone handset is fairly compact to solve the above mentioned problem.
In a preferred embodiment, the present invention provides a cellular phone handset comprising:
a memory for storing programs and data;
a processor for executing the programs stored in the memory;
a displaying device electrically connected to the processor for displaying data;
an input/output (I/O) port electrically connected with the processor for connecting to a stand alone data editing device for transmitting data;
a data file inputted through the I/O port and stored in the memory comprising a plurality of common character codes and specific character codes;
a common character font file stored in the memory comprising a plurality of common character font data;
a specific character font file inputted through the I/O port and stored in the memory comprising specific character font data corresponding to the specific character codes of the data file; and
an application program stored in the memory for displaying characters of the common character codes in the data file on the displaying device according to the common character font file, and characters of the specific character codes in the data file on the displaying device according to the specific character font file.
It is an advantage of the present invention that the cellular phone handset can display different kinds of graphic characters, fonts, symbols, and graphics to meet the demand of a user.
It is another advantage of the present invention that the memory of the cellular phone handset is kept small so that the handset could be very compact.
These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment which is illustrated in the various figures and drawings.
REFERENCES:
patent: 5633484 (1997-05-01), Zancho
patent: 5786776 (1998-07-01), Kisaichi
patent: 5920826 (1999-07-01), Metso
Vardaman, Jan E., Electronic Engineering Times, 1995, n 850, PG70.*
Cassel, Jonathan, Electronic Buyer's News, 1933, n 865, PG14.*
Mayer, John H., Electronic Buyer's News, 1997, n 1085, PG 52.
Hsieh Wen-Jui
Yu Chi-Huang
Acer Peripherals Inc.
Hsu Winston
Luu Matthew
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