JP2859775B2 - Portable selective call receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective calling portable receiver,
In particular, the present invention relates to an improvement of a selective calling portable receiver having a clock function.

[0002]

2. Description of the Related Art A so-called pager service for wirelessly transmitting a telephone call or a message to a user who is out of the office is widely used. In recent years, such a portable paging receiver has a clock function in addition to a paging function, and paging data (reception data) in the paging function and time data in the clock function are displayed on the display unit of the receiver. and the time display data, a memory built in a portable paging receiver stored in separate areas.

Here, call data (received data)
Is a call message, a telephone number of a call destination, and the like. The time display data includes time display data as a clock, time display data at the time of message reception, and time display data of a time alert.

The means for changing the time display data in such a portable paging receiver with a clock function is to change the power of the receiver from OFF to ON, and then to turn on the correction switch to shift to the correction mode. Resets the time display data in the memory. At that time, at the same time, in such a receiver, the reception data separately stored in the memory is always erased by the initialization means, and the reception data memory area is set to a state where new reception data can be stored. I was

[0005]

However, in view of the recent increase in the use of received data in the information society, the received data memory area is initialized every time the time display data is changed. The received data before the data change could not be called, which was very inconvenient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to keep received data stored in a received data memory area even when power is turned ON or OFF and time display data is set. To provide a portable selective call receiver.

[0007]

In order to solve the above-mentioned problems, a portable selective call receiver according to the present invention comprises:
A power switch for turning on / off the power of the receiver body,
A time display unit for shifting to the correction mode by turning on the power switch from OFF to ON and further turning on the correction switch, and a memory for storing reception data and time display data of the receiver, A memory having a separate data memory area for receiving received data, a time display data memory area for storing the time display data, and a display for switching received data displayed on a display unit provided in the receiver. A portable selective call receiver having a scroll button for turning on and off the power switch.
Receiving data memory initialization means for initializing the received data memory area when N or OFF, further detecting that the power switch is turned off while the scroll button is operated, It has a reception data holding means for preventing initialization of the reception data memory area.

[0008]

According to the portable selective call receiver of the present invention having the above-described structure, the power switch is turned off in a state where the scroll button is operated. Therefore, even when the power switch is turned on or off and when setting the time display data, the received data that the user wants to keep can be retained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the portable paging receiver includes an antenna 10 for receiving a paging radio wave, the received signal is amplified to a predetermined level by an amplifier 11, and a desired waveform is shaped by a waveform shaper 12. The received signal is further converted into a calling code signal by the decoder 13, compared with a self-calling number stored in a memory, in the embodiment, the P-ROM 14, and when both match, a calling signal is supplied to the CPU 15. The received signal has a telephone number or call code data as required, and these data can be sent to the CPU 15 when the call signals match. The received data is temporarily recorded in the memory 16, and these call messages (received data) are displayed on the display 17 of the receiver as is well known.

In this embodiment, the portable paging receiver can be called by a driving sound by the speaker 18 or by a vibration calling by a combination of the motor driver 19 and the pulse motor 20. These can be selected according to. In addition, the power is controlled by a control signal from an operation unit 21 connected to a plurality of operation switches, such as power ON / OFF or mode switching of the portable paging receiver.

A feature of the present invention is that a power switch is turned off while a scroll button (a button for scrolling a call message on the display unit) of the operation unit 21 is operated. Sends a signal from the CPU 15 to the memory 16 so as to reserve the initialization of the reception data memory area of the memory 16.
The flag bit in the middle is supplied and stored. Then, when the power is turned on, it is detected whether or not the signal stored in the flag bit is a predetermined signal. If the predetermined signal is detected, the reception data memory area in the memory 16 is initialized. Reserve

Therefore, when setting the time display data such as a time alert, if the above operation is performed even if the power switch is turned off, the received data in the memory 16 is initialized and deleted. Never.

In this case, the flag bit is stored in the memory 1
The CPU 15 has this R when the power is turned on.
A flag bit of the AM is searched, and the presence or absence of a predetermined signal is detected to determine whether or not to perform initialization.

Hereinafter, this control method by the CPU 15 will be described with reference to the flowcharts of FIGS.

First, in FIG. 2, it is determined whether or not the scroll button has been operated when the power switch of the portable paging receiver is turned off (S101). if,
If both operations are performed (Push), a flag bit is used as a memory erasure flag in the present embodiment. This memory erasure flag is reset to “0” (S103), and the power is turned on again. The mode shifts to the sleep mode in which all the stored data is retained until the data is stored. On the other hand, if the scroll button is not operated when the power switch is turned off (Release), the memory erase flag is set to “1” (S10).
2) Shift to sleep mode.

Therefore, when the power switch of the call receiver is turned on again, the signal stored in the memory erasure flag is determined (S201). If the signal is "1", the received data memory initialization means is used. The received data memory area is initialized, the stored received data is erased (S202), and new received data is set to a state in which new received data can be written. Then, the functions and devices provided in the receiver are inspected and received. The process proceeds to the wake-up process for setting to a possible state. On the other hand, in the case of the signal "0", the initialization of the reception data memory area by the reception data memory initialization means is suspended, and the process immediately proceeds to the wake-up processing without erasing the reception data stored in the memory. .

Therefore, in the case of this embodiment, the power supply is turned on.
Alternatively, the reception data held in the reception data memory area in the memory due to the backup of the power supply at the time of OFF and setting of the time data can be reused without being erased.

[0018]

As described above, the selective call receiver with the message protection function of the present invention detects that the power switch is turned off while the scroll button is operated, and initializes the reception data memory area. Is provided, the received data that the user wants to keep can be held even when the power switch is turned on or off and when setting the time display data.

[0019] In addition, by using the operation buttons that have been conventionally used,
The received data can be easily held.

[Brief description of the drawings]

FIG. 1 is a drive circuit block diagram showing a preferred embodiment of a selective call receiver with a message protection function according to the present invention.

FIG. 2 is a flowchart illustrating a method for controlling message retention when the power is turned off in the embodiment.

FIG. 3 is a flowchart illustrating a method for controlling message retention when the power is turned on in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Antenna 11 Amplifier 12 Waveform shaper 13 Decoder 14 P-ROM 15 CPU 16 Memory 17 Display 18 Speaker 19 Motor driver 20 Pulse motor 21 Operation part

Claims (1)

(57) [Claims] A power switch for turning on / off a power supply of a receiver main body; time display means for shifting to a correction mode by turning the power switch from off to on and further turning on a correction switch; A memory for storing reception data and time display data, wherein the memory separately has a data memory area in reception for storing reception data of the receiver and a time display data memory area for storing the time display data. And a scroll button for switching and displaying received data displayed on a display unit provided in the receiver, wherein the received data memory area is initialized when the power switch is turned on or off. a received data memory initialization means, while the previous SL state scroll button is operated, the power switch oF By detecting that it is portable selective call receiver characterized by having a received data holding means for inhibiting the initialization of the reception data memory area.