JP2000295343A - Radio communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a radio communication terminal for a long time by suppressing power consumption. SOLUTION: This radio communication terminal is provided with a charging LED 55, a backlight LED 56, a sounder 54 and a vibrator 59 which are plural incoming call notifying means notifying an incoming call, driving means that drive respective incoming call notifying means and a drive controlling means 57 which controls respective driving means corresponding to at least two incoming call notifying means so as not to overlap periods when the incoming call notifying means are notified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone or PHS (personal digital
The present invention relates to a wireless communication terminal such as a terminal of a handy phone system.

[0002]

2. Description of the Related Art PHS (Personal Handyphone system)
In such mobile terminals, a sound output device such as a sounder, a speaker, and a receiver for generating a ring tone, a vibrator for generating vibration, a charging LED, and a backlight LE are provided for notification of an incoming call.
An indicator that emits light such as D is provided, and these are used in combination.

That is, there are sound, vibration, and light as modes of the incoming call notification, and the incoming call notification is performed by combining these. Here, considering the case of performing an incoming call notification using all of sound, vibration, and light, for example, as shown in FIG.
An electric current is applied to the vibrator, the charging LED, and the backlight LED simultaneously to drive the vibrator, the charging LED, and the backlight LED, thereby notifying the incoming call. In FIG. 5, a current flows during a period in a block.

[0004]

Therefore, assuming that the individual current values are the same as shown in the "total" of FIG. 5, the amount of current flowing at one time is equal to the sounder, vibrator, charging LED and backlight LED. The power consumption at the time of incoming call becomes excessive, the battery voltage is quickly reduced, and the usage time of the terminal is reduced. In particular, in a wireless communication terminal such as a PHS, an increase in current consumption leads to a reduction in usable time of the terminal, which can be a serious problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional wireless communication terminals such as PHS terminals and the like, and an object of the present invention is to operate a plurality of incoming call notifying means for notifying incoming calls. It is an object of the present invention to provide a wireless communication terminal which is of a type for notifying an incoming call, but which can suppress power consumption and withstand use for a longer time than before.

[0006]

A radio communication terminal according to the present invention reports a plurality of incoming call notifying means for notifying an incoming call, a driving means for driving each of the incoming call notifying means, and at least two incoming call notifying means. And a drive control means for controlling each drive means corresponding to the incoming call notifying means so that no overlap occurs during the period. Thereby, at least two incoming notification units are not driven at the same time, and power consumption can be suppressed.

Further, in the wireless communication terminal according to the present invention, the drive control means controls the drive means so as to minimize the amount of power consumed by the driven incoming call notification means. This minimizes the amount of power consumed.

Further, the wireless communication terminal according to the present invention is characterized in that the wireless communication terminal is provided with setting means for performing setting relating to driving of the driving means. This makes it possible to suppress power consumption while performing settings related to driving of the driving unit.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A radio communication terminal according to the present invention will be described below with reference to the accompanying drawings. In each drawing, the same components are denoted by the same reference numerals, and redundant description will be omitted. In the following description, a PHS terminal is taken as an example, but other wireless communication devices such as a mobile phone can be similarly configured. As shown in FIG. 1, the telephone includes a radio unit 1 having an antenna 11, a modem unit 2, a TDMA unit 3, and a communication unit 4.
, A control unit 5 and a power supply unit 7. The control unit 5 includes an operation unit 51 including various keys and a touch panel, an LCD (liquid crystal display) 52, an LCD control unit 53 for controlling the LCD 52, a sounder 54 for generating a ringing tone, and an incoming call. Is notified by vibration. Further, the control unit 5 includes a charging LED 55 for notifying the completion of charging and the like and an incoming call notification.
A backlight LED 56 constituting the backlight of 52
Is connected. Sounder 54, vibrator 59,
The charging LED 55 and the backlight LED 56 have driving units (DR) 54a, 59a, 55 as driving means, respectively.
a and 56a are connected, and these driving units are controlled by the control unit 5 to control the sounder 54, vibrator 59, charging LED 55, backlight LED 56,
Is driven.

In the telephone, a radio frequency signal arriving from the home base station BSH or the public base station BSP is received by the antenna 11, and the radio frequency signal (S
W) The receiving unit 13 is reached via 12. In the receiving unit 13, the radio frequency signal received as described above is mixed with a receiving local oscillation signal generated from the frequency synthesizer 14 and converted into a receiving intermediate frequency signal. The local oscillation frequency generated by the frequency synthesizer 14 is instructed by the control unit 5 according to the radio channel frequency. The radio unit 1 includes a reception field strength detection unit (RSSI) 1
6 are provided. The reception field strength detection unit 16 detects the reception field strength of the radio frequency signal arriving from the home base station BSH or the public base station BSP,
The detected value is notified to the control unit 5.

The received intermediate frequency signal output from the receiving section 13 is sent to the digital demodulation circuit 21 of the modem section 2. The digital demodulation circuit 21 digitally demodulates the received intermediate frequency signal, thereby reproducing a digital communication signal.

The TDMA decoder 31 of the TDMA unit 3
In accordance with an instruction from the control unit 5, a digital communication signal is extracted from a time slot assigned to the own device, and the extracted digital communication signal is transmitted to the communication unit 4. The communication unit 4 uses an adaptive differential PCM codec (ADPCM-COD).
EC) 41 and a PCM codec (PCM-CODE)
C) 42, and the digital speech signal is sequentially decoded by the adaptive difference PCM codec 41 and the PCM codec 42 to reproduce an analog speech signal.
The reproduced analog call signal is output from the speaker 43 after being amplified by a receiver amplifier (not shown).

On the other hand, the transmission voice input to the microphone 44 is sequentially encoded by the PCM codec 42 and the applied difference PCM codec 41 to be a digital speech signal. In the TDMA encoder 32, the digital communication signal transmitted from the adaptive difference codec 41 is inserted into a time slot specified by the control unit 5 and transmitted to the digital modulation circuit 22. In the digital modulation circuit 22, the carrier signal is modulated by the digital communication signal, and the modulated signal according to the modulation result is transmitted to the transmission unit 15. In the transmitting section 15, the modulated signal is mixed with the transmitting local oscillation signal generated from the frequency synthesizer 14 to be frequency-converted to the radio channel frequency specified by the control section 5 and further amplified to a predetermined transmission power level. Is done. The radio frequency signal transmitted from the transmitting unit 15 is transmitted from the antenna 11 via the high frequency switch 12 to the home base station BSH or the public base station BS.
Sent to P.

The power supply unit 7 includes a battery 71 composed of a secondary battery.
And the output voltage of the battery 71 is changed to a predetermined operating voltage Vcc.
And a power supply circuit 72 for converting the power supply to In the above, the transmission unit 15, the digital modulation circuit 22, and the TDMA encoder 32 constitute a transmission system for transmitting data, and the reception unit 13, the digital demodulation circuit 21, and the TDMA decoder 3
1 constitutes a receiving system for receiving data. The transmission system can be in a battery saving state in preparation for data transmission, in which state power consumption is reduced.

As shown in FIG. 1, the control section 5 is provided with a drive control means 57 and a display control means 58. The memory 6 is provided with a table 67 in which item information relating to a combination of incoming notification means operating together is stored. In the present embodiment, a sounder 54, a vibrator 59, a charging LED 55, and a backlight LED 56 are used as incoming call notifying means, and as shown in FIG.
Corresponding to ・, information on items that are operated (used) together as incoming notification means is stored.

The control unit 5 displays, for example, an item of "setting of an incoming notification item" on a menu screen as a display control means 58, and when this item is selected by the user, displays an incoming notification pattern name and an item. Receive a selection by the user. Here, the incoming notification pattern 3 is selected as the incoming notification pattern name, and the sounder 5 as an item is selected.
4. The following description will be made on the assumption that all of the vibrator 59, the charging LED 55, and the backlight LED 56 have been selected.

The driving control means 57 performs driving such that at least two of the operating plurality of incoming call notifying means do not overlap during the driving period.
In the first embodiment, driving is performed as shown in FIG.
In the figure, a charging LED 55, a backlight LED
The period during which the 56, sounder 54, and vibrator 59 are driven is indicated by blocks. That is, when there is an incoming call, driving is performed so that the backlight LED 56 is continuously turned on, and the charging L
Driving is performed so that the ED 55 is lit (continuously lit or blinks) in the block.

Further, driving is performed so that the lighting period of the charging LED 55, the sounding period of the sounder 54, and the vibration period of the vibrator 59 do not overlap. That is, the charging LED 5
After the end of the lighting period of 5, the sounding period of the sounder 54 is started. Following the end of the sounding period of the sounder 54, the vibration period of the vibrator 59 is started.

As a result, assuming that the height of the block in FIG. 3 is the magnitude of the current, the amount of current consumed for the notification of the incoming call after the occurrence of the incoming call is 2 as shown in FIG. The amount is approximately the same as when the two incoming notification units are driven simultaneously, and the power consumption can be suppressed as compared with the conventional case.

Next, a second embodiment will be described. In the second embodiment, the drive control unit 57 determines that the sum of the power consumed by the respective driving units that drive the charging LED 55, the backlight LED 56, the sounder 54, and the vibrator 59, which are all the incoming notification units that operate together, is Combinations are made so as to be minimum, and control as shown in FIG. 4 is performed for each drive unit.

In the same figure, as in FIG.
The drive periods of 55, backlight LED 56, sounder 54, and vibrator 59 are indicated by blocks. The height of the block is the magnitude of the current. Here, driving is performed so that the backlight LED 56 is continuously lit when there is an incoming call, and driving is performed so that the charging LED 55 is lit (continuously lit or blinking) in the block.

In addition, the vibrator 59 is driven so as to vibrate in synchronization with a period in which the charging LED 55 is lit (continuously lit or blinked). On the other hand, as for the sounding of the sounder 54 which consumes a large amount of power (twice that of the other incoming notification means),
After the end of the lighting period of the charging LED 55, the sounder 5
The driving is performed so that the ringing period of No. 4 starts.

As apparent from the above results, as is apparent from the sum of the magnitudes of the currents represented by the heights of the blocks, the amount of power consumed for notification of an incoming call after the occurrence of an incoming call depends on three incoming notification means. When driven at the same time, the amount of power is about the same. That is, the charging LED 55 and the backlight L
The case where the three incoming notification means of the ED 56 and the vibrator 59 are driven at the same time and the case where the backlight LED 56 and the sounder 54 are simultaneously driven have the same electric energy respectively, and are equal to the case where the three incoming notification means are simultaneously driven. Therefore, power consumption can be suppressed as compared with the conventional case where four incoming notification units are simultaneously driven. That is, it is possible to reduce the power consumption by selecting the incoming call notification means that is driven simultaneously according to the amount of power consumed.

In the above two embodiments, the backlight LED 56 is lit continuously after an incoming call. However, the backlight LED 56 may be lit intermittently to reduce power consumption. Also, as an incoming call notification means, a charging LED
Not only the 55, the backlight LED 56, the sounder 54, and the vibrator 59 but also a speaker, a receiver, or the like can be used. Further, in the present embodiment, the PHS has been described as an example of the wireless communication terminal, but the present invention is not limited to this, and the type of the wireless communication system and the configuration of the additional terminal are not limited. Things.

[0025]

As described above, according to the radio communication terminal of the present invention, the control of each drive means corresponding to the incoming call notifying means is performed so that the periods for notifying at least two incoming call notifying means do not overlap. Therefore, power consumption can be reduced as compared with the related art.

Further, according to the wireless communication terminal of the present invention, since the driving means is controlled so that the amount of power consumed by the driven incoming call notification means is minimized, the power consumption is reduced as compared with the conventional case. be able to.

Further, according to the radio communication terminal of the present invention, since the setting relating to the driving of the driving means can be made, not only the incoming call notification can be made by the necessary incoming call notifying means, but also the power consumption can be suppressed. .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a wireless communication terminal according to the present invention.

FIG. 2 is a diagram showing information in a table in which an incoming call notification pattern employed in the wireless communication terminal according to the present invention is associated with information on items that are operated simultaneously as incoming call notifying means.

FIG. 3 is a view for explaining an incoming call notification operation in the first embodiment of the wireless communication terminal according to the present invention.

FIG. 4 is a view for explaining an incoming call notification operation in the second embodiment of the wireless communication terminal according to the present invention.

FIG. 5 is a diagram for explaining an incoming call notification operation in a wireless communication terminal according to a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Radio part 2 Modem part 3 TDMA part 4 Talk part 5 Control part 6 Memory 7 Power supply part 51 Operation part 52 LCD 53 LCD control part 54 Sounder 55 Charging LE
D 56 backlight LED 57 drive control means 58 display control means

Claims (3)

[Claims] 1. A plurality of incoming call notifying means for notifying an incoming call; a driving means for driving each of the incoming call notifying means; and the incoming call notifying means so that no overlap occurs during a period for notifying at least two incoming call notifying means. A wireless communication terminal comprising: a drive control unit that controls each of the corresponding drive units. 2. The wireless communication terminal according to claim 1, wherein the drive control unit controls the drive unit such that the amount of power consumed by the driven incoming call notification unit is minimized. 3. The wireless communication terminal according to claim 1, further comprising a setting unit configured to perform setting related to driving of the driving unit.