Ideographical character signalling system

• US 5,223,831 A
• Filed: 07/22/1991
• Issued: 06/29/1993
• Est. Priority Date: 08/14/1989
• Status: Expired due to Term

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schwendeman, John, Kung, Patrick S.
• Primary Examiner(s): HJERPE, RICHARD A
• Application Number:
  US07/734,080
• Time in Patent Office: 708 Days
• Field of Search: 340/715, 340/732, 340/735, 340/311.1, 340/825.44, 341/28, 371/29.1, 371/31, 371/37.1, 371/37.2, 371/37.7, 371/53, 371/57.1, 371/67.1, 371/69.1, 370/93
• US Class Current: 340/7.56
• CPC Class Codes: G06F 3/018 Input/output arrangements for oriental characters
• CPC Class Codes: G08B 5/226 with alphanumeric or graphic display means
• CPC Class Codes: G09G 5/246 of ideographic or arabic-like characters

Abstract

This invention relates to an ideographical character signalling system, such as an ideographical character paging system, comprising: input means for inputting a plurality of first and second different types of ideographical characters, said input means including coding means for coding both said first and second types of ideographical characters according to a first code; signal processing means for receiving a data signal comprising said first and second types of ideographical characters coded according to said first code, said signal processing means comprising code converting means for selectively coding the coded first type of ideographical characters according to a second standard code. A signal receiver, for receiving data signals comprising a plurality of coded ideographical characters, and having character generating means for generating for display only the most frequently used ideographical characters together with a special character symbol if a rarely used character is received, is also disclosed.

Claims

1. An ideographical character paging system comprising:

input means for inputting characters of a particular ideographical language;

processing means coupled to the input means for processing each of the ideographical character, said processing means including means for selecting a code for encoding each ideographical character according to a particular coding standard for transmission;

first transmitter means coupled to the processing means for transmitting the encoded ideographical characters to a terminal controller;

said terminal controller, comprising;

determining means for determining whether each of the encoded ideographical character corresponds to one of a universal character set the determining means further determines whether the encoded ideographical characters not found within the universal character set comprise a replaceable or non-replaceable ideographical character;

replacement means for replacing each replaceable character as determined by the determining means with a determined replacement character;

code converting means for converting the encoded ideographical characters found within the universal character set and the replacement characters to a first code; and

second transmitter means for transmitting said first code and the non-replaceable ideographical characters to a remote location;

receiver means, at said remote location, for receiving said first code and said non-replaceable ideographical characters; and

decoding means, coupled to said receiver means, for decoding said first code to produce said ideographical characters encoded therein, said decoding means comprising a replacing means for replacing said non-replaceable ideographical characters with a predetermined character symbol.

2. A selective call receiver for use within an ideographical character signalling system for receiving data signals comprising a plurality of coded ideographical character messages wherein the ideographical character messages including replaceable ideographical characters being code converted according to a first code according to a universal character set and non-replaceable ideographical characters according to said universal character set not being converted, comprising:

decoding means for decoding each one of a plurality of coded ideographical characters within said plurality of coded ideographical character messages;

character generating means for generating ideographical characters from the decoded first code for display;

control means for determining the type of each one of said plurality of ideographical characters within said plurality of coded ideographical character messages, said control means in response to said first type of ideographical character selects the corresponding ideographical character from the character generating means and sad control means in response to a decoded non-replaceable ideographical character selects a predetermined character symbol; and

display means for displaying the ideographical characters and said predetermined character symbols.

3. A selective call receiver according to claim 2 wherein said character generating means comprises a Read Only Memory.

4. A selective call receiver according to claim 2 wherein said control means comprises a microcomputer.

5. A paging system comprising:

terminal receiving means for receiving a message comprising a plurality of encoded ideographical characters;

determining means coupled to the terminal receiving means for determining whether each of the encoded ideographical character corresponds to one of a universal character set, the determining means further determines whether each encoded ideographical character not found within the universal character set comprises a replaceable ideographical character or is a non-replaceable ideographical character according to the universal character set;

replacement means for replacing each replaceable character as determined by the determining means with a replacement character;

code converting means for converting the encoded ideographical characters found within the universal character set and the replacement characters to a first code; and

transmitting means for transmitting said first code and the non-replaceable ideographical characters to at least one selective call receiver at a remote location;

the selective call receiver, comprising;

receiving means for receiving said first code and said non-replaceable characters;

decoding means, coupled to said receiving means, for decoding said first code to produce the ideographical characters encoded therein, said decoding means comprising a replacing means for replacing the decoded non-replaceable ideographical character with a predetermined character symbol; and

display means for displaying the decoded ideographical characters and the pre-determined character symbol.

6. A selective call receiver for use within an ideographical character signalling system for receiving data signals comprising a plurality of coded ideographical character messages wherein replaceable ideographical characters being code converted to a first code according to a universal character set and non-replaceable ideographical characters according to said universal character set not being code converted, comprising:

decoder for decoding each one of the plurality of coded ideographical characters within said plurality of coded ideographical character messages;

character generator for generating ideographical characters from the decoded first code for display;

micro-processor controller for determining the type of each one of said plurality of decoded ideographical characters within said plurality of coded ideographical character messages, said micro-processor controller in response to a decoded first code selects the corresponding ideographical character from the character generator and said micro-processor controller in response to decoding a non-replaceable ideographical character selects a predetermined character symbol; and

display means for displaying the decoded ideographical characters and said predetermined character symbols.

7. A paging system comprising:

input means for inputting characters of a particular ideographical language;

microprocessor coupled to the input means for processing each of the particular ideographical character, said microprocessor including means for selecting a code for encoding each ideographical character according to a particular coding standard for transmission;

modem coupled to the microprocessor for transmitting the encoded ideographical characters to a terminal controller having a receiver for receiving the encoded ideographical characters;

said terminal controller, comprising;

determining means for determining whether each of the encoded ideographical character corresponds to one of a universal character set, the determining means further determines whether each encoded ideographical character not found within the universal character set comprises a replaceable ideographical character or a non-replaceable ideographical character;

replacement means for replacing each replaceable character as determined by the determining means with a replacement character;

code converting means for converting the encoded ideographical characters found within the universal character set and the replacement characters to a first code; and

transmitter for transmitting said first code and the non-replaceable ideographical characters to at least one selective call receiver at a remote location;

the selective call receiver, comprising;

receiver for receiving said first code and said non-replaceable characters;

decoder, coupled to said receiver, for decoding said first code to generate the ideographical characters encoded therein, said decoder comprising a replacing means for replacing the decoded non-replaceable ideographical character with a predetermined character symbol; and

display means for displaying the decoded ideographical characters and the pre-determined character symbol.