JP2880862B2 - Wireless selective call receiver with display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio selective call receiver with a display having a function of displaying a received message on a screen.

[0002]

2. Description of the Related Art In recent years, there have been remarkable technological innovations in radio selective call receivers. Instead of a tone-only type having a function of notifying a caller of a call by a ringing sound, a message is displayed on a screen. A radio selective call receiver with a display having a function is becoming mainstream.

[0003] By the way, in this type of conventional radio selective call receiver with a display, characters, numerals and the like in a received message are displayed on a display unit in a predetermined size. If the received message is long and cannot be displayed on one screen, the screen is switched according to the switch operation of the carrier, and the message is displayed over a plurality of screens.

[0004]

As described above, the conventional radio selective call receiver with display displays characters of a fixed size on the screen, and thus has the following problems.

That is, if the size of the characters displayed on the screen is increased, the displayed message becomes easier to read, but the number of characters that can be displayed on one screen is reduced. There is a problem that switching must be performed.

When the size of characters displayed on the screen is reduced, the number of characters that can be displayed on one screen increases, and the number of times of screen switching can be reduced.
Even when the message is short and the screen does not need to be switched, the characters are displayed in a small size. Therefore, there is a problem that the message is difficult to read as compared with a case where the size of the characters displayed on the screen is increased. .

An object of the present invention is to reduce the number of screen switchings for a long message by changing the size of a character to be displayed, and to display a large size character which is easy to see for a short message. An object of the present invention is to provide a radio selective call receiver with a display.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a receiving unit, a display unit, and a method for receiving a message.
Wireless selective call with display having control unit for controlling display
A receiver, wherein the control unit is configured to receive a message length.
Means for selecting a character size to be displayed according to
Received message length can be displayed on one screen of the display unit
If the number of characters exceeds the
Display part of the received message on one screen, and
Select the font size even if the message is shorter
And means for displaying continuously. In addition, the present invention
The radio selective call receiver with display receives the data to be displayed.
Receiving unit that processes received data and displays it on the display unit.
Display control unit that controls the
Selective call receiver with display, comprising:
A transmitter, wherein the display controller receives the received message.
Means to check the number of characters in
Means to set the size of the turn, and the size of the set
Displays messages received using character patterns on one screen
Indicating a character pattern of the set size.
Received messages less than one screen display
It is displayed on a screen.

[0009]

[Action] The counter reads from the character generator.
Count the number of issued dot patterns and display control
The column is a character or number with a size corresponding to the count value of the counter.
Since the components of the message such as characters are displayed on the display ,
The components of the message can be displayed on the display unit in a small size for a long message and in a large size for a short message.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. An antenna 1, a radio section 2, a waveform shaping circuit 3, a decoder 4, an ID-ROM 5, an oscillator 6, and a power supply 7 are shown.
, A speaker drive unit 8, a speaker 9, an LED drive unit 10, a light emitting diode 11, a memory 12, a control unit 13, and a character generator (CG-ROM) 14.
, Counter 15, display drive unit 16, display unit 17
And a pulse generator 18.

FIG. 2 is a flowchart showing a processing example of the decoder 4, and FIGS. 3 and 4 are flowcharts showing a processing example of the control unit 13. The operation of the present embodiment will be described below with reference to the drawings.

The selective calling signal received by the antenna 1 is amplified and demodulated by the radio unit 2 and further converted by the waveform shaping circuit 3 into a signal readable by the decoder 4.

When the selective calling signal whose waveform has been shaped by the waveform shaping circuit 3 is added to the decoder 4, as shown in FIG.
The call number contained therein is compared with its own call number stored in the ID-ROM 5 (step S
1).

If there is a mismatch (step S1 is N
O) waits for the next selective call signal to be added, and if they match (YES in step S1), it is determined whether there is a message following the call number (step S1).
2).

If it is determined in step S2 that no message exists (NO in step S2)
Applies a drive signal to the speaker drive unit 8 and the LED drive unit 10 to drive the speaker 9 and the light emitting diode 11 to notify that a caller has been called (step S3).

Thereafter, the decoder 4 starts a timer which times out when T seconds have elapsed (step S4). When the timer times out or when a reset switch (not shown) is pressed by the wearer, the loudspeaker is activated. 9. The operation of the light emitting diode 11 is terminated (steps S5 to S7).

If it is determined in step S2 that a message exists (step S2 is YES),
The decoder 4 stores the message in the memory 12 (step S8).
(Step S9 is YES), the control unit 13 is activated (step S10).

Thereafter, the decoder 4 includes a speaker driving unit 8,
The driving signal is applied to the LED driving unit 10 to drive the speaker 9 and the light emitting diode 11 to notify that the caller has been called (step S11). When the carrier presses the reset switch in response to this notification (step S12).
Is YES), the decoder 4 terminates the operation of the speaker 9 and the light emitting diode 11 (step S13).

When activated by the decoder 4, the control unit 13 first sets the count value A to "0" as shown in the flowchart of FIG. 3 (step S21). afterwards,
The controller 13 reads the message stored in the memory 12 for one character, and reads a character pattern corresponding to the read character (a dot pattern of 2N × 2M.
Is read from the character generator 14 (step S22). The control unit 13 repeats this process until step S25 becomes YES, that is, until the character patterns corresponding to all the characters of the message stored in the memory 12 are read from the character generator 14.

The character pattern read from the character generator 14 is transmitted to the display driver 16 and the pulse generator 18.
Is added to The display driving unit 16 holds the character pattern from the character generator 14 and
Outputs a pulse every time a character pattern for one character is output from the character generator 14, as shown in FIG. The number of pulses output from the pulse generator 18 is counted by the counter 15, and the counter 15 outputs 1 pulse.
A pulse is output to the control unit 13 each time six pulses are counted.

The control unit 13 includes a character generator 14
When a pulse is applied from the counter 15 while the process of reading the character pattern from is performed, the count value A is incremented by 1 (steps S23 and S24).

When character patterns corresponding to all characters of the message stored in the memory 12 are read from the character generator 14 (step S25 is Y
ES), the control unit 13 determines whether or not the count value A is “0”, that is, whether or not the length of the message is less than 16 characters (step S26).

If it is determined that the length of the message is less than 16 characters (step S26: YES), a display start signal is immediately output to the display drive unit 16 (step S27). If it is determined (NO in step S26), a character size change instruction signal is output to the display drive unit 16 (step S3).
2) Output a display start signal to the display drive unit 16 (step S33).

When a display start signal is added without a character size change instruction signal (when step S26 is YES), the display driver 16 sets a character pattern (2N × 2M) corresponding to the held message. A segment signal is created in accordance with the dot character pattern), and the created segment signal is output to the display unit 17 to display a message on the display unit 17. FIG. 6 shows a display example at this time.

When the display start signal is added after the character size change instruction is added (NO in step S26), the display driver 16 sets the character pattern corresponding to the held message to an even number, for example. A segment signal is created according to a character pattern of N × M dots created by thinning out columns and even rows, and the created segment signal is displayed on the display unit 1.
7 to display a message on the display unit 17. FIG. 7 is a diagram showing a display example at this time, and N ×
Since the display is performed by the segment signal created based on the character pattern of M dots, the character size is reduced to 1/4 and the number of characters that can be displayed is 4 compared to the case of FIG.
It is 64 characters twice.

When outputting the display start signal in step S27, the control unit 13 starts a timer which times out after T seconds (step S28), and the timer is timed out or the display switch (not shown) is operated by the operator. ), The display drive unit 16 is instructed to turn off the display and the display of the message is terminated (step S).
29-S31).

When the display start signal is output in step S33, the control unit 13 determines whether the count value A is A <4, that is, whether the message length is less than 64 characters. Yes (step S34).

If it is determined that the number of characters in the message is less than 64 (YES in step S34)
Indicates that the processing in step S28 is performed, and that it is determined that the number is not less than 64 characters, that is, that there is a next screen.
(Step S34 is NO) is "4" from the count value A
Is subtracted (step S35), and the process waits until the next screen switch (not shown) is pressed (step S36).

Then, when the next screen switch is pressed,
The control unit 13 outputs a next screen display signal to the display drive unit 16 (step S37).
It is determined whether <4, that is, whether the next screen exists (step S38). And if it is determined that it does not exist
If (Step S38 is YES), the process of Step S28 is performed, and it is determined that there is an image.
O) performs the process of step S35 again.

When the next screen display signal is added, the display drive section 16 creates a segment signal for displaying an undisplayed message on the display section 17 in characters of the size of N × M dots. Is displayed on the display unit 17 to display an undisplayed message on the display unit 17 using characters of N × M dots.

FIG. 8 is a timing chart showing an operation when the message length is less than 16 characters, and FIG. 9 is a timing chart showing an operation when the message length is 16 characters or more.

Each time a character pattern for one character is output from the character generator 14, a pulse is output from the pulse generator 18. When the length of the message is less than 16 characters, as shown in FIG. Since the counter 15 does not output a pulse, the controller 13 does not output a character size change instruction signal to the display driver 16. As a result, the message is displayed in characters of 2N × 2M dots in size.

On the other hand, when the length of the message is 16 characters or more, as shown in FIG.
The counter 15 outputs a pulse when 16 pulses have been output from the. As a result, the message length is 1
If the number of characters is six or more, a character size change instruction signal is output from the control unit 13 to the display drive unit 16, and the message is displayed as characters of size N × M dots.

In the above embodiment, the length of the message is determined based on the number of character patterns read from the character generator 14, and the size of 2N × 2M dots is determined based on the determination result. Switching between display using characters and display using characters of N x M dots size is provided. A character size change switch that can be operated by the carrier is provided in the radio selective call receiver with display. ,
The size of the characters to be displayed can be switched according to the state of this switch.

When displaying a message in 2N × 2M dot characters, as shown in FIG. 10, a selective call signal composed of a call number ID and messages M1 to M6 is sent out, and the message is sent to N When displaying by the characters of × M dots, as shown in FIG.
And a control signal CS, and a selective call signal composed of messages M1 to M5. In the radio selective call receiver with display, based on the presence or absence of the control signal CS, 2N × 2M
It is also possible to switch between displaying a message in dot characters and displaying a message in N × M dot characters.

[0037]

[0038]

As described above, the radio selective call receiver with a display according to the present invention reads from a character generator.
A counter that counts the number of dot patterns that are found
And characters and numbers in size according to the count value of the counter
Display control to display the components of the message such as
Means, the component of the message is displayed in a small size when the message is long, and the component of the message is displayed in a large size when the message is short. Therefore, according to the present invention, it is possible to reduce the number of times of screen switching in the case of a long message and to make it easy to see the message in the case of a short message.

[Brief description of the drawings]

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

FIG. 2 is a flowchart illustrating a processing example of a decoder.

FIG. 3 is a flowchart illustrating a processing example of a control unit.

FIG. 4 is a flowchart illustrating a processing example of a control unit.

FIG. 5 is a timing chart showing the operation of the embodiment.

FIG. 6 is a diagram illustrating a display example when a message is short.

FIG. 7 is a diagram showing a display example when a message is long.

FIG. 8 is a timing chart showing the operation of the embodiment when the message is short.

FIG. 9 is a timing chart showing the operation of the embodiment when the message is long.

FIG. 10 is a diagram showing a configuration example of a selective call signal transmitted when displaying 2N × 2M dot characters.

FIG. 11 is a diagram illustrating a configuration example of a selective calling signal transmitted when displaying N × M dot characters.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Antenna 2 ... Radio | wireless part 3 ... Waveform shaping circuit 4 ... Decoder 5 ... ID-ROM 6 ... Oscillator 7 ... Power supply 8 ... Speaker driving part 9 ... Speaker 10 ... LED driving part 11 ... Light emitting diode 12 ... Memory 13 ... Control part 14: Character generator (CG-ROM) 15: Counter 16: Display drive unit 17: Display unit 18: Pulse generator

Claims (2)

(57) [Claims] 1. A receiving section, a display section, and a received message.
Selection with display having control unit for controlling display of image
A call receiver, wherein the control unit selects a character size to be displayed according to a received message length.
Selecting means, and displaying the received message length on one screen of the display unit.
If the number of characters exceeds the
Display part of the received message on one screen, and
If the message is shorter than one screen,
Display with radio selective calling receiver characterized by comprising a means for continuing to display size. 2. A receiving section for receiving data to be displayed, and a receiving section.
A display system that controls communication data and displays it on the display
Control unit and generator that generates character patterns of multiple sizes
Wireless selective call receiver with display comprising: The display control unit, Means for checking the number of characters of the received message; Means for setting the size of the character pattern according to the number of characters
When, Messages received using a character pattern of the set size
Means for displaying the message on one screen, Continue using the character pattern of the set size
Display received messages that are less than one screen display on the screen This
And a radio selective call receiver with a display.