JPH03198538A - Radio calling receiver with display function - Google Patents

Abstract

PURPOSE:To identify a caller depending on the difference from a ring tone pattern by identifying a kind of a character code of a reception message in response to the kind of a frame synchronizing signal received independently of a reception address and displaying the received message so as to make the reception address and the caller correspondent with each other one by one. CONSTITUTION:When a frame synchronizing signal is detected, a decoder 4 stores the kind of the frame synchronizing signal SC, starts a CPU 6 to execute the reception and decoding of a succeeding message signal M. Then the decoder 4 sounds a speaker 12 via an amplifier 11 depending on a ring tone pattern corresponding to the reception address and informs the callout to a receiver carrier. On the other hand, the CPU 6 reads the kind of the frame synchronizing signal stored in the decoder 4 and a display control section 8 decodes a character code of a message data based on a relevant character code decode rule. As a result, a message data is displayed on an LCD 9 as a message.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a wireless selective calling receiver with a display function, and in particular, it is capable of displaying received messages and sounding in a sound pattern corresponding to the caller. Regarding the receiver.

[Prior Art] Conventionally, this type of wireless selective calling receiver with a display function has identified the type of character code of a received message according to the type of the received address. For example, a message consisting of a character code according to the BCD 4-bit rule is received at the A address, and a message consisting of a character code according to the ASCII 7-bit rule is received at the D address.

Furthermore, here, the tone pattern of the notification sound notifying the caller is changed for each receiving address.

The main reason why the ringing pattern changes for each receiving address is that originally, in wireless selective calling receivers without a display function, in order to identify the calling source, the receiving address and the calling source were set one-to-one. This was done so that the caller could be identified by the difference in the ringing patterns.

[Problem to be solved by the invention]

However, in the above-mentioned conventional wireless selective calling receiver with a display function, the reception address is used to identify the type of character code, so it is not possible to immediately determine where the call is coming from just by listening to the notification sound. The problem is that there is no.

SUMMARY OF THE INVENTION An object of the present invention is to provide a receiver that makes it possible to know the calling party by a notification sound.

[Means to solve the problem]

The receiver of the present invention includes means for identifying the type of character code of a received message according to the type of frame synchronization signal in the received digital signal, and displaying the received message on a display based on the rules of this character code. and means for emitting a sound having a sound pattern corresponding to the receiving address.

In this case, the means for displaying the received message on the display is as follows:
It is equipped with multiple dot decoders that convert input message signal data into display data based on required character code rules, and these multiple dot decoders are selected according to the frame synchronization signal. , the message data decoded by the selected dot decoder is displayed on the display as a received message.

[Effect]

In this configuration, since the received message is displayed by identifying the character code type of the received message according to the type of the received frame synchronization signal, the received address and the character code type are unrelated, and the received address and the caller are It becomes possible to perform notifications using corresponding sound patterns.

[Example〕 Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block system diagram of one embodiment of the present invention.
2 is an antenna, 2 is a radio section, 3 is a waveform shaping circuit, 4 is a decoder, 5 is a programmable read-only memory (hereinafter referred to as PROM) in which its own selective call number is written, 6 is a CPU, and 7 is display information 8 is a display control unit, and 9 is a liquid crystal display (hereinafter referred to as L) as a display device.
10 is a stabilized power supply, 11 is an amplifier for amplifying the sound signal, 12 is a speaker, 13 is a voltage booster circuit, 14 is a battery, and 15 is a power switch.

Next, the operation of the receiver shown in FIG. 1 will be explained with reference to FIG. 2. A desired radio signal received by the antenna 1 is received and demodulated by the radio unit 2, and is converted into a digital signal a by the waveform shaping unit 3.
is obtained.

When this digital signal a is input, the decoder 4 outputs “
Bit synchronization is performed using a preamble signal P consisting of a repeating pattern of 1°゛0'', and the next frame synchronization signal S
Shift to detection of C. There are four types of frame synchronization signals SC: SCI, SC2, SC3, and
It is represented by SC4. When detecting any frame synchronization signal, the decoder 4 memorizes the type of the frame synchronization signal SC, then reads data from the PROM 5 in which its own selective call number is written, and converts the address signal in the digital signal a. Check if it matches A.

When the decoder 4 confirms that the message has been defeated, the decoder 4 activates the CPU 6 from the signal line b (FIG. 1) to receive and decode the subsequent message signal M. This decoding is performed using the display information in the RAM 7, thereby obtaining message data corresponding to the received message.

Thereafter, the decoder 4 causes the speaker 12 to make a sound via the amplifier 11 in accordance with the sound pattern corresponding to the received address, thereby notifying the person carrying the receiver that he or she has been called.

On the other hand, the CPU 6 reads out the type of frame synchronization signal stored in the decoder 4 and outputs it to the signal line C. Then, the display control section 8 decodes the character code of the message data based on the character code decoding rule corresponding to this type. As a result, the message data will be displayed on the LCD.
9 will be displayed as a message.

Next, the CPU 6 will be explained in detail with reference to FIG.

101 is an input port, 102 is a serial interface, 103 and 104 are output ports, 105 is a data bus, 106 is a program counter, and 107 stores a sequence of instructions to be executed, and the program counter 1
This is a program memory from which the contents of the address specified by 06 are read.

108 is A that performs various operations such as arithmetic operations and logical operations;
L U (arithmetic and logi)
c unit ), 109 is an instruction decoder that decodes information from the program memory 107 and supplies control signals corresponding to the instructions to each section.

110 is an accumulator used for transmitting and receiving data between the ports 101 to 104, 111 is a RAM for storing various data, and 112 is a system clock generator that determines the execution command cycle time.

Further, the display control section 8 will be explained in detail with reference to FIG.

201 is a serial interface, 202 is a command/
Data register, 203 is a command decoder, 204 is a data pointer, 205 is a first don't decoder, 206
is the second dot decoder, 207 is the third dot decoder,
208 is a fourth dot decoder, 209 is a data memory,
210 is an LCD data launch, and 211 is an LCD driver.

Next, data transfer between the CPU 6 and the display control section 8 will be explained.

First, the CPU 6 sets the signal line τ to low level. This puts the CPU 6 into data input mode. Also,
After inputting data, set it to high level to enter data display mode.

Next, signal line S. Transfer commands and data sequentially from LIT. The timing of this transfer is determined by the signal line SCK.

At this time, in order for the display control unit 8 to recognize whether the command is a command or data, the CPU 6 sets the signal line C/D to a high level for a command and to a low level for data.

Serial interface 201 receives a serial signal from CP tJ 6 and outputs it to command/data register 202 . When a command is input, the command/data register 202 sends the command to the command decoder 203.
Transfer its contents. The command decoder 203 decodes the command, and controls the command/data register 2σ2, data pointer 204, first dot decoder 205, second dot decoder 206, third dot decoder 207, and fourth dot decoder 208 according to its contents.

When data is input to the command/data register 202, the data is output to either the first dot decoder 205, second dot decoder 206, third dot decoder 207, or fourth dot decoder 208 as instructed by the command decoder 203. Zuru.

When data is input to each dot decoder, the error is detected by LC.
D Convert to display data for display.

In this embodiment, the first dot decoder 205 converts the data into display data based on the FCD 4-bit rule, the second dot decoder 206 converts the data into display data &S based on the JIS 8-bit rule, and the third dot decoder 207 converts the data into display data based on the Kanji JIS 16-bit rule, and the fourth dot decoder 208 converts the data into display data based on the ASCII 7-bit rule.

Which of these four dot decoders is selected depends on the type of frame synchronization signal read out from the decoder 4 by the CPU 6, as described above.

That is, when the frame synchronization signal is S01, the question 1 dot decoder 205 is selected, and the frame I period signal is SC
If the frame synchronization signal is SC3, the second dot decoder 206 is selected, and if the frame synchronization signal is SC3, the third dot decoder 20 is selected.
7 is selected and the frame synchronization signal is SC4, the fourth dot decoder is selected.

The display data output from each dot decoder is held in a data memory 209, and is further held in an LCD data latch 21.
0 to the LCD driver 211.

LCD driver 211 displays a message on LCD 9 according to display data from data memory 209.

〔Effect of the invention〕

As explained above, according to the present invention, the received message is displayed by identifying the type of character code of the received message according to the type of the received frame synchronization signal regardless of the received address. This has the effect of making it possible to identify the caller by the difference in sound patterns.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram showing the format of a received signal, FIG. 3 is a block diagram of a CPU, and FIG. 4 is a block diagram of a display control section. l...Antenna, 2...Radio unit, 3...Waveform shaping circuit, 4...Decoder, 5...PROM, 6...
CPU, 7...RAM, 8...Display control unit, 9...
・LCD, 10... Stabilized power supply, 11... Amplifier,
12... Speaker, 13... Voltage booster circuit, 14...
...Battery, 15...Switch, 101...Input port, 102...Serial interface, 103,1
04... Output port, 105... Data bus, 10
6...Program counter, 107...Program memory, 108...ALU109...Instruction decoder, 110...Accumulator, 111
...RAM. 112...System clock oscillator, 201...Serial interface, 202...Command/data register, 203...Command decoder, 204...
・Data pointer, 205...first dot decoder,
206... Second dot decoder, 207... Third dot decoder, 208... Fourth dot decoder, 20
9...Data memory, 210...LCD data latch, 211...LCD driver. Fig. 1 Fig. 11J1J1f Upper hole C4 Fig. 3 Fig. 4

Claims (1)

[Claims] 1. A preamble signal for establishing bit synchronization;
A display function that receives a frame synchronization signal for establishing frame synchronization, a selective call signal to notify that the self has been called, and a message signal following the selective call signal, and displays the contents of the message on a display. In a wireless selective calling receiver with a wireless selective calling receiver, means for identifying the type of character code of a received message according to the type of the received frame synchronization signal, and means for displaying the received message on a display based on the rule of the character code; 1. A wireless selective calling receiver with a display function, comprising: means for producing a sound having a sound pattern corresponding to a receiving address. 2. The means for displaying the received message on the display includes a plurality of dot decoders that convert message signal data into display data based on required character code rules when inputted, and the means for displaying the frame synchronization signal The display according to claim 1, wherein the display is configured to select one of the plurality of dot decoders according to the selected dot decoder, and display message data decoded by the selected dot decoder on a display as a received message. Wireless selective calling receiver with functions. 3. A receiving unit that receives the received digital signal, a waveform shaping circuit that shapes the waveform of this digital signal, a PROM in which its own selective call number is written, and a PROM that converts the received digital signal into the selective call number of said PROM. In addition to the comparison, a decoder that detects a frame synchronization signal from a digital signal, a RAM that stores display information, and a CPU that decodes a message signal using the display information of the RAM when the selective calling numbers match. a display control section that selects a decoder with a character code rule according to the type of frame synchronization signal and decodes a message signal with this decoder; a display that displays a received message based on the decoded message data; A wireless selective calling receiver with a display function, characterized by comprising a speaker that makes a sound in a sound pattern corresponding to an address, and a battery as a power source.