JPH07101949B2 - Selective call receiver - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective call receiver capable of receiving message information, and more particularly to displaying various messages by receiving a small amount of information. Of possible selective call receivers.

[Conventional technology]

More information can be transmitted by adding message information in the selective call service.

A BCD code is generally used as a normal signal, and a single digit 4
Depending on the code of the bits, a total of 16 types of information including numbers and several symbols can be transmitted. Furthermore, considering character transmission, 7 bits are required for each character. In this case, as a means for transmitting more information without increasing the number of bits, there is a method disclosed in "Individual selective call receiver with display: Japanese Patent Laid-Open No. 56-65537". This is a method of composing message information with a predetermined code corresponding to the predetermined information.

In the method of encoding and transmitting predetermined information as described above, a specific code designation is applied to each number designation. However, there is a problem in that there is a problem in that there is a lack of a signal, or the length of the constraint signal becomes long, which defeats the initial purpose.

Therefore, in a selective call receiver that operates by receiving an individual selective call signal and a message signal, when a specific combination of codes is received, a number or the like following the specific symbol, or the specific symbol It has been proposed that a code corresponding to an enclosed number or the like is judged to mean a specific character message, and a fixed text message corresponding to the number or the like is read from the storage circuit and displayed.

This is the same as the one mentioned above, when displaying a message using the BCD code, it is possible to display a text message when not only numbers and symbols but also a combination of codes corresponding to a certain symbol is received. They differ in points.

Hereinafter, an example of how to use the BCD code in such a case will be described.

The BCD code has 4 bits, for example, as shown in FIG.
Means numbers and symbols.

Here, [,], space, and-are used. In this case, normally, as the message transmission using numbers and symbols, it is considered that many telephone numbers, extension telephone numbers, etc. are transmitted as shown in Table 1. That is, [,], space, and-are often used individually. Also,
[And] are often used in combination.

However, it is rare to use [and] in succession or to use [] in succession.

That is, if such a combination of symbols that is normally rarely used is agreed with the symbol at the beginning of the fixed phrase message, not only numbers and symbols but also fixed phrase messages can be displayed by the BCD 4-bit code.

Table 2 is an example of a combination of symbols indicating that it is a fixed sentence. As examples of considering numbers and the like surrounded by specific symbols as fixed phrases, item number 1, item number 4, and item number 5 are given. Item numbers 2, item numbers 3, item numbers 6, and item numbers 7 are examples of cases in which a number following a specific symbol is regarded as a fixed sentence.

In this case, all the numbers, etc. following these specific symbols shall be regarded as fixed phrases until the end.

In Table 2, [or] is used, and a fixed sentence is represented by a combination of the two. However, not only [or] but other- (hyphen), space, etc., or a combination thereof is used. It can be realized by using not only two but also three or more.

Table 3 shows an example in which message contents are associated with numbers as an example of a message of a fixed phrase. In this case, the number is one digit, but it may be two digits or more. The message content may be more complicated.

[Problems to be Solved by the Invention] As described above, the conventional selective call receiver is capable of transmitting a message, but the wording is limited. However, there is a problem that the amount of communication information increases when trying to convey.

In view of the above-mentioned conventional problems, the present invention is a signal system that suppresses the number of occupied bits per subscriber, can increase the subscriber capacity, and can select a variety of message information that can be received. It is intended to provide a call receiver.

[Means for Solving the Problems]

According to the present invention, the above problem is solved by means as set forth in the claims.

That is, the present invention is a selective call receiver that operates by receiving an individual selective call signal composed of numbers and a plurality of symbols and a message signal, and is a display capable of displaying a fixed sentence composed of a plurality of characters. A part, a means for detecting information consisting of a specific code combination and a number or code from a received message signal, and a signal consisting of a one-digit or multi-digit number or symbol or a combination thereof, A memory that stores a character string determined corresponding to each digit position on the signal string, and a signal string that follows when information consisting of a specific code combination and a number or code is detected from the message signal. Means for reading a character string corresponding to the numeral or code of the digit from the memory for each digit position, and a sentence read by the means And a means for displaying on the display unit by connecting the columns in a predetermined order, and as the character string, a character string representing a wording indicating an action corresponding to a one-digit number or symbol. A character string representing a word corresponding to the above-mentioned action or a telephone number corresponding to the one-digit number or symbol, and a word representing the reason for instructing the above-mentioned action and place corresponding to the one-digit number The character string that represents, the character string that represents the wording that includes the time or time that corresponds to a multi-digit number, and what to do when you instruct that you should contact in the above action that corresponds to a one-digit number. The selective calling receiver is characterized in that at least two sets of character strings are used among the character strings representing a word corresponding to the word.

〔Example〕

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

Further, FIG. 2 shows an example of a signal configuration for one subscriber transmitted from the base station.

The message spans from message # 1 to message # 3 and uses 4 bits for 1 digit, so that 12 digits and symbols can be transmitted.

In FIG. 1, a signal received by an antenna 1, that is, a carrier signal modulated by an individual call signal as shown in FIG.
After being demodulated here, it is input to the decoding / control circuit 3. The decoding / control circuit 3 decodes the input signal and monitors whether the data of the EP-ROM 5 in which the calling number of the subscriber is written and the individually selected calling signal of the input signal match, and When the match is confirmed, the process moves to the detection of the message signal.

In this way, the decoded message information bit is stored in the RAM 4 and the alarm horn 10 is driven via the buffer 9 to inform the receiver holder that there is a call.

At the same time, the message information bit is read from RAM4 and EP
-Determine whether or not there is a combination of parentheses, such as item numbers 1 to 7 of Table 2 listed in ROM6, and if there is, a number between or after that is shown in, for example, Table 4. The contents of such a fixed text message are read from the EP-ROM 7 in which the ASC code is written, for example.

The read information is guided to the character generator 11 together with the numerical information converted by the decoding / control circuit 3, and the message in Table 6 corresponding to, for example, Table 4 to be described later is sent via the drive circuit 12 to the display 13. Displayed above.

Table 4 is a feature of the present invention, "decomposes the contents of the message and composes the message with a combination thereof".
An example of the method is shown.

Here, as an example, what to do, where and why
When and what was divided into. Is displayed in the order of ,,,, when a message is displayed.

For example, if the input person sends 1111021, the message will be displayed as "There is an accident, let me know the return time by 2 o'clock."
Becomes If you just want to call me at home, send 12! Also, if you only want to call "call home time", send 1000001.

Furthermore, Table 5 uses the example of [No. 1 of Table 2] and [as an example of the combination of specific symbols representing a fixed phrase], but as another example, for example, the items of Table 2 Number 2
Table 6 shows the correspondence between the input example and the message display corresponding to Table 5 in the case where the number following the combination of specific symbols is regarded as a fixed sentence as described above.

In the example of the signal structure shown in FIG. 2, a code corresponding to a 12-digit number or the like can be transmitted.

[Effects of the Invention] As described above, according to the present invention, it is assumed that a combination of specific symbols represents a fixed phrase, and a number after a specific combination of symbols or a number between symbols of a specific combination is used. Since the combination of fixed-form message is expressed, there is an advantage that various character information can be transmitted and ordinary numbers and symbols can also be transmitted without significantly affecting the subscriber capacity.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, FIG. 2 is a diagram showing an example of a signal configuration, and FIG. 3 is a diagram showing an example of symbols to be displayed. 1 ... Antenna, 2 ... Radio receiver, 3 ... Decoding / control circuit, 4 ... RAM, 5,6, 7 ... EP-ROM, 8 ... Switch, 9 ... Buffer, 10 ... Alarm Horns, 11,12 ...
… Character generator, 13 …… Display.

Claims (1)

[Claims] 1. A selective call receiver which operates by receiving an individual selective call signal composed of numbers and a plurality of symbols and a message signal, and a display unit capable of displaying a fixed sentence composed of a plurality of characters. A means for detecting information consisting of a specific code combination and a number or code from the received message signal, and a signal including the one-digit or multi-digit number or symbol or a combination thereof, When the memory that stores the character string defined corresponding to each digit position on the column and the information consisting of a specific code combination and a number or code is detected from the message signal, the digits of the signal sequence following this are detected. A means for reading the character string corresponding to the numeral or code of the digit from the memory for each position, and a character string read by the means. And a means for displaying on the display unit, the character string representing a wording indicating an action corresponding to a one-digit number or symbol, and Character string representing the place or telephone number etc. corresponding to the above action corresponding to the digit number or symbol and wording indicating the reason for instructing the action or place etc. corresponding to the one digit number A character string, a character string representing a word including a time or time corresponding to a multi-digit number, and what to contact when instructing that the above action corresponding to a one-digit number should be contacted A selective call receiver characterized in that at least two sets of character strings among corresponding character strings are used.