JPS60173935A - Selective call receiver with display - Google Patents

Abstract

PURPOSE:To select a signal from any of plural display systems without much cost by adding the signal selected by changeover of a display switching section to the most significant digit of message data of plural bits. CONSTITUTION:After a selective call signal with message code is compared and collated with a selective call number of the own set, a 4-bit message signal is separated and outputted from a decoder 1. The decoder 1 discriminates the input from a terminal (c) of the display switching section 6 as 1, 0 of the value of a display switching bit 10 corresponding to the high/low level of the input in matching with the data 11. When the value is logical 1, a display segment data 12 shown in conversion table A is outputted and a character of display content 13 is displayed on a display element 3. When logical 0, the character of Conversion table B is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a selective call receiving device with a display, which is equipped with a display device such as a liquid crystal display and is capable of transmitting a message to a called person.

Conventional structure and its problems Traditionally, in selective call receiving devices equipped with a display device such as a liquid crystal display and configured to convey a message such as a telephone number to a caller, the standard call transmission method is POC8AG”
The method is widely used. However, in this system, the message data is converted into a 4-bit digital code.
11 types of characters that can be displayed due to the character structure
The number is limited to 16, and if you exclude the numbers 0 to 9 needed to display a phone number, the others are "Space J" - J
.

Only the codes necessary to display a multi-digit telephone number such as r(J, r)j are defined. The numeric segment display used as a cursor display device limits the shapes of characters that can be displayed, making it inconvenient for displaying other information such as the name of the other party. On the other hand, depending on the user, POC5
Some people prefer to display only the telephone number using the AG method, so while standard display using the POC8AG method can be performed, it is also possible to accommodate users who wish to display a larger amount of information with a slight change at the manufacturing stage. A selective call receiving device was in demand.

OBJECTS OF THE INVENTION The present invention has been made in view of the above points, and provides an option that allows selecting one of a plurality of display methods using a numeric segment display element, with only slight partial changes and almost no increase in cost. The purpose of this invention is to provide a call receiving device.

Structure of the Invention In order to achieve the above object, the present invention prepares a plurality of display button conversion tables stored in a read-only memory (ROM) when converting a decoder output into a display symbol such as a character code. , a switching bit signal obtained by switching the display switching unit is added to the upper part of the decoder output, one of the sets of display patterns is selected, and the conversion table of the selected set is used to convert the decoder output, that is, the message data. It is designed for display.

Description of examples An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a block diagram of the main parts, in which 1 is a decoder from which a message signal from the base of the selective call receiving device is output, 2 is a 4-via (4 via) message data from the decoder 1, which is read out and displayed. This is a ROM that outputs segment data and has a memory arrangement shown in FIG.

7-segment numerical segment display element using 3t/'i liquid crystal, 4 is a drive for driving display element 3 [11
At this point, characters or numbers (hereinafter abbreviated as display button) are displayed on the display segment data from the ROM 2. 6 is a control unit using a microcomputer,
Controls decoder 1 and ROλ (2), etc. 6
is a display switching unit, and a common terminal C is connected to a location corresponding to the font switching bit 10 of R0M2. Terminal a is connected to the power supply vCC, and terminal a is connected to ground. Reference numeral 14 denotes connection means such as a jumper wire for connecting between the terminals ac or between terminals ac and bc.

Next, the operation of the above embodiment will be explained. A message-encoded selective call signal sent from a base station or the like is received by a receiving device and then compared with the selective call number of the receiving device. Thereafter, the 4-bit message signal is separated and output from the upper decoder 1. As shown in FIG. 2, the decoder 1 converts the 4-bit data 11 into the display (switching) bit, which is the largest bit information, in response to the high and low inputs from the terminal C of the display switching section. The value of 10 is 1゜0
If it is 1, the display segment data 12 shown in the conversion table A of the figure is output, and any character of the display content 13 is displayed on the display element 3 via the drive circuit 4. If the value of display bit 10 is 0, conversion table B is similarly displayed.

Here, the display of the conversion table A corresponds to POC8AC, and the display format of the conversion table B includes alpha bent characters of A-H in addition to numbers.

Mmm, the above alphabets A, b, c, d.

E can be displayed by a 7-segment numeric segment display element, and the display element must be changed to display characters. The moat display switching unit may be configured with a switch, etc., but the display pattern must be determined in advance in cooperation with the base station, so a semi-fixed method such as a jumper wire is sufficient; has the advantage of taking up less space.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described in detail, a plurality of sets of display patterns for the numeric segment display device are prepared, a conversion table of the display patterns and received data is stored in the ROM, and a display switching section is separately stored. By adding a signal selected by connection/disconnection to the top of the plurality of bits of message data, one of the plurality of combinations of display patterns can be selected.
Because of this structure, when switching the display pattern, the display switching section can be changed by simply using a jumper wire, etc., so the number of man-hours is small, and it does not take up a lot of space. It has the advantage of being able to respond to requests.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main structure of a display publication selective call receiving device according to an embodiment of the present invention, and FIG. 2 is a diagram showing the memory arrangement of a ROM used in the device. 1...Decoder, 2...ROM, 3...
・919 display element, 4...drive circuit, 5...
...Control unit, 6...Display. Switching section.

Claims (1)

[Claims] a decoder for receiving and collating a selective call signal with a message from a base station and outputting message data; a numeric segment display device for displaying a message corresponding to the message data; and a display symbol corresponding to the message data. and a read-only memory for storing a plurality of display pattern conversion tables, and a plurality of read-only memories in which a connection or disconnection signal of a display switching unit is added to the upper part of the message data as a display bit. A selective call receiving device with a display that selects one set of display patterns and displays the message data using a conversion table of the selected set of display patterns.