JPH1051825A - Radio selective calling receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio selective calling receiver in which battery replacement is urged for the user, sudden reception disable is prevented in advance and the operating convenience is improved by informing the reduced battery capacity before a battery voltage alarm is outputted through the solution to problems that the decrease in a battery voltage is not noticed till the battery voltage alarm is outputted and reception is disable at an important point of time. SOLUTION: This receiver is provided with a red LED 6a and a blue LED 6b and a control section 21 checks a battery voltage of a battery 10 at application of power and when a battery voltage (x) is less than 1.1v, a battery voltage alarm is outputted as conventional, and in the case of 1.1v<x<=1.2v, the red LED 6a is lighted and in the case of x>1/2v, the blue LED 6b is lighted. Thus, the LED is lighted depending on a degree of reduction in the battery voltage in a stage before the battery voltage alarm is outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio selective calling receiver, and more particularly, to a radio selective calling receiver which can notify the remaining amount of a battery in a stepwise manner and improve the usability.

[0002]

2. Description of the Related Art A conventional radio selective calling receiver uses a battery as a power source. When a power source is turned on, a control unit checks the battery voltage. A voltage alarm is output, and the transition to the receiving operation is prohibited.

Next, the operation of the conventional radio selective calling receiver at the time of power-on will be described with reference to FIG. FIG.
FIG. 4 is a flowchart showing an operation at the time of power-on in a control unit of the conventional radio selective calling receiver. As shown in FIG. 4, when the power is turned on, the control unit checks the battery voltage and determines whether the battery voltage is equal to or lower than a predetermined value, that is, whether or not a battery voltage error has occurred (30).
0). If the battery voltage is equal to or lower than the predetermined value (Yes), the control unit outputs a battery voltage alarm (30).
2) Stop the operation (304) and end the process.

[0004] The battery voltage alarm is, for example, for outputting a specific notification sound or displaying a dead battery mark to notify a user of a decrease in battery voltage.

[0005] If the battery voltage is equal to or higher than a predetermined value in the process 300 and there is no battery voltage error, the control unit
It is determined whether or not the selective call number is written in the ID-ROM, that is, whether or not there is an ID-ROM error (3).
10) If an ID-ROM error occurs, the ID-ROM
A ROM non-writing warning is output, and the operation is stopped (30
4), end the process.

On the other hand, if it is not an ID-ROM error in the process 310, the normal initial operation shown in the processes 314 to 328 is performed, and the reception wait state is set. Therefore, when the battery voltage alarm is output, the process does not shift to the reception waiting, and the reception cannot be performed.

[0007]

However, in the above-mentioned conventional radio selective calling receiver, the user does not notice the decrease in the battery voltage until the battery voltage alarm is output, and the user cannot receive the signal due to the sudden alarm. There is a problem in that it may become impossible to receive when important.

The present invention has been made in view of the above circumstances, and notifies the user that the battery capacity is low before a battery voltage alarm is output, prompts the user to replace the battery, and It is an object of the present invention to provide a radio selective calling receiver which can prevent sudden reception loss at any time and improve usability.

[0009]

According to the first aspect of the present invention, when the power supply voltage is equal to or lower than a first specific value set at the time of turning on the power supply, the invention according to claim 1 is provided.
A wireless selective call receiver that outputs a power supply voltage alarm that informs of a drop in the power supply voltage and prohibits shifting to a receiving operation, includes an LED, and when the power is turned on, the power supply voltage is set to the first specified value. Although it exceeds the value, it is characterized in that the LED is turned on when it is equal to or less than a predetermined second specific value, and the LED is turned on at a stage before outputting the power supply voltage alarm. In addition, it is possible to notify the user of the drop in the power supply voltage, to prompt the user to replace the battery, and to prevent sudden reception failure at an important time.

According to a second aspect of the present invention, there is provided a radio selective call receiver according to the first aspect, wherein the first LED and the second LED having different emission colors from each other are provided. When the power supply is turned on, when the power supply voltage exceeds the first specific value but is equal to or less than the second specific value, the first LED is turned on, and the second specific value is changed. When the power supply voltage is exceeded, the second LED is turned on.
Can be turned on, and the user can be notified of the degree of decrease in the power supply voltage before the power supply voltage alarm is output.

According to a third aspect of the present invention, there is provided a radio selective call receiver according to the first aspect, wherein the power supply voltage value is periodically monitored during a standby state, and When the voltage exceeds the first specific value but falls below the second specific value, the LED is turned on. In a standby state, the power supply voltage is set to the reference value of the power supply voltage alarm output. L is close to the value
The user can be notified by the lighting of the ED to urge the user to replace the battery.

[0012]

Embodiments of the present invention will be described with reference to the drawings. The radio selective calling receiver (this apparatus) according to the embodiment of the present invention checks the battery voltage at the time of turning on the power and at the time of standby, and turns on (flashes) an LED of a different color according to the battery voltage, thereby remaining battery power. The amount is notified step by step, and when the remaining battery level is low, the user can be urged to respond before an alarm is issued.

First, the configuration of a radio selective calling receiver (this apparatus) according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a configuration block diagram of a radio selective calling receiver according to an embodiment of the present invention. As shown in FIG. 1, the present apparatus has substantially the same configuration as a conventional radio selective calling receiver, and includes a receiving section 1 for receiving a radio signal, a decoder 2 for decoding a received signal, and a self-selecting call number. EE to memorize
A PROM 3, a switch 4 for switching power ON / OFF, a vibrating vibrator 5, a resonator 7 for outputting a ringing sound, a display control unit 8, a display unit 9, and a battery 10 as a main power supply voltage unit. , Two types of L that are characteristic of this device
ED6 (red LED 6a and blue LED 6b).

Further, the decoder 2 is provided with a control unit 21 for performing an initial operation and a calling operation at the time of reception.
The control unit 21 is provided with voltage detecting means for checking the voltage of the battery 10. And the process of the control part 21 is different from the conventional one.

The features of the present apparatus will be specifically described. The control unit 21 of the present device checks the voltage of the battery 10 when the power is turned on, outputs the same battery voltage alarm as before when the voltage is equal to or less than a predetermined value, and when the voltage exceeds the predetermined value, LED6a or LED6 depending on the remaining amount
b is turned on. That is, in the present device, three-stage notification is performed according to the degree of decrease in the battery voltage.

Specifically, when the battery voltage (x) is x ≦ 1.
If it is 1 v, a battery voltage alarm is output as in the conventional case, and if 1.1 v <x ≦ 1.2 v, it is indicated that the battery voltage has dropped considerably. The control unit 21 turns on the red LED 6a. When x> 1.2v, the blue LED 6b is turned on in the sense that the battery level is still sufficient.

Thus, in this apparatus, before the battery voltage alarm is output and the function is stopped, the user is notified that the remaining battery level is low, and the user is prompted to prepare for battery replacement. Can be prevented from suddenly becoming unreceivable when it is important.

Next, the operation of the control section 21 when the power is turned on will be described with reference to FIG. FIG. 2 shows the control unit 2 of the apparatus.
FIG. 4 is a flowchart illustrating a process at power-on of No. 1;
As shown in FIG. 2, the control unit 21 of the present apparatus turns on the power.
, The battery voltage is checked (100), and it is determined whether the battery voltage (x) satisfies x ≦ 1.1v (10).
1) If x ≦ 1.1v, a battery voltage alarm is output as in the conventional case (102), the operation is stopped (104), and the process ends.

If x ≦ 1.1v is not satisfied in the process 101, that is, if x> 1.1v, the control unit 21 sends the ID-
Check for ROM error (110), ID-
If a ROM error occurs (in the case of Yes), the ID-ROM
An unwritten warning is output (112), the process proceeds to step 104, and the process ends.

If it is not an ID-ROM error in the process 110 (No), the control unit 21 performs an initial display (114), and then the battery voltage (x) becomes x ≦ 1.2 v
Is determined (116). When x ≦ 1.2v is not satisfied, that is, when x> 1.2v (No)
In the case where the remaining battery level is sufficient, it is determined whether the switch 4 is in the ringing position (118). If the switch 4 is in the ringing position (Yes), the resonator 7
, An initial sound is output, and the blue LED 6b is turned on (12).
0), when the operation of the switch 4 is performed (140), the operation is stopped (142), and the reception waits.

If it is determined in step 118 that the switch 4 is not in the sounding position (No), the control unit 2
1 turns on the blue LED 6b (122), determines whether the switch 4 is in the silent mode (124), and if it is not in the silent mode (No), activates the vibrator (126). ), Processing 140
Move to If the process 124 is in the silent mode (Yes), the process proceeds to the process 140 without operating the vibrator.

If x ≦ 1.2v in the processing 116, that is, if there is a possibility that a battery voltage alarm will be output soon (Yes), the control unit 21 sets the switch 4 to the sound position. Is determined (130),
If it is in the ringing position (Yes), an initial sound is made, the red LED 6a is turned on (132), and
Move to 0.

In the process 130, if the switch 4 is not in the ringing position (No), the control unit 21
Turns on the red LED 6a (134), and the processing 12
Move to 4. In this way, the processing of the control unit 21 when the power of the apparatus is turned on is performed.

According to the radio selective calling receiver according to the embodiment of the present invention, red LED 6a and blue LED 6b
When the power is turned on, the control unit 21 checks the battery voltage of the battery 10 and determines that the battery voltage (x) is x ≦ 1.1 v
In the case of, a battery voltage alarm is output as in the prior art, and 1.1 is output.
When v <x ≦ 1.2v, the red LED 6a is turned on, and when x> 1.2v, the blue LED 6b is turned on. Therefore, before the battery voltage alarm is output, At this stage, the LED can be turned on according to the degree of the battery voltage drop, and the user recognizes that the remaining battery level is low before the battery voltage alarm is output, and It is possible to prepare for replacement, and there is an effect of preventing a situation in which reception is impossible in an important case due to a sudden alarm output.

Next, a radio selective call receiver (another apparatus) according to another embodiment of the present invention will be described. Another radio selective call receiver has a configuration similar to that of the radio selective call receiver shown in FIG. 1, and checks the battery voltage not only at the time of turning on the power but also in a state of waiting for reception. When the voltage approaches the reference value of the battery voltage alarm output, an LED (red) is turned on to call the user's attention.

The processing in the control unit of another radio selective calling receiver will be described with reference to FIG. FIG. 3 is a flowchart illustrating a process in a control unit of another radio selective calling receiver. As shown in FIG. 3, the control unit of another radio selective calling receiver receives a timer interrupt from the standby state (200), and checks the battery voltage (x) (202). Then, it is determined whether or not x ≦ 1.2v (204), and if x ≦ 1.2v (Ye
In the case of s), it is further determined whether or not x ≦ 1.1v (210).

In the process 210, if x ≦ 1.1v is not satisfied, that is, if 1.1v <x ≦ 1.2v (No
), The control unit outputs a specific short sound (short sound different from the ringing sound), and turns on the LED (red) (2).
20).

In step 204, if x ≦ 1.2v, that is, if x> 1.2v (No), the process returns to the standby state. Processing 210
If x ≦ 1.1 v (Yes), a battery voltage alarm is output (212), the receiving operation is stopped (214), and the process is terminated. In this way, the operation of the control unit of another radio selective calling receiver is performed.

According to the radio selective calling receiver according to another embodiment of the present invention, during standby, the battery voltage is periodically checked, and the battery voltage exceeds the reference value for outputting the battery voltage alarm. However, if it is less than the preset reference value, a short sound is output and the red LED is turned on, so that the user is notified that the output of the battery voltage alarm is near. Thus, the user can be alerted and the user can prepare for battery replacement.

[0030]

According to the first aspect of the present invention, when the power supply voltage at the time of turning on the power supply exceeds the first specific value for outputting the power supply voltage alarm, but falls below the second specific value. And L
Since the radio selective calling receiver turns on the ED, the user can be notified of a drop in the power supply voltage before the power supply voltage alarm is output, and can be prompted to replace the battery. There is an effect that can be prevented from becoming.

According to the second aspect of the present invention, two types of L
The ED is provided, and any one of the LEDs is turned on according to the power supply voltage at the time of power-on. There is an effect that the degree of reduction of the power supply voltage can be reported.

According to the third aspect of the present invention, in the standby state, the value of the power supply voltage is periodically monitored, and when the power supply voltage exceeds the first specific value but falls below the second specific value. Since the wireless selective call receiver according to claim 1 turns on the LED, the power supply voltage is close to the reference value of the power supply voltage alarm output even in the standby state.
There is an effect that the user is notified by lighting of D and the user can be prompted to replace the battery.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a radio selective calling receiver (this apparatus) according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a process performed when a power supply of a control unit 21 of the apparatus is turned on.

FIG. 3 is a flowchart illustrating a process in a control unit of a radio selective calling receiver according to another embodiment of the present invention.

FIG. 4 is a flowchart showing an operation at the time of power-on in a control unit of the conventional radio selective calling receiver.

[Explanation of symbols]

1 ... receiver, 2 ... decoder, 3 ... EEPROM,
4 switch, 5 vibrator, 6 LED,
7 resonator, 8 display control unit, 9 display unit, 10
... Battery, 21 ... Control unit

Claims (3)

[Claims] When a power supply voltage is equal to or lower than a first specific value set at the time of power-on, a power supply voltage alarm for notifying a decrease in the power supply voltage and prohibiting a transition to a receiving operation is output. The wireless selective call receiver includes an LED, and when the power supply is turned on, when the power supply voltage exceeds the first specific value, but is equal to or less than a preset second specific value, A wireless selective call receiver, wherein the LED is turned on. A first LED and a second LED that emit light of different colors from each other;
The first LED is turned on when it exceeds the specific value of the second specific value, but is less than or equal to the second specific value, and when it exceeds the second specific value, the second LED is turned on. The radio selective call receiver according to claim 1, wherein the receiver is lit. 3. A power supply voltage value is periodically monitored during standby, and when the power supply voltage exceeds a first specific value but falls below a second specific value, an LED is turned on. The radio selective call receiver according to claim 1, wherein the receiver is lit.