JPH11341120A - Mobile radio terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the visibility of display information and to attain a stable operation by surely recognizing the operating state of a terminal even in an operation in a dark place. SOLUTION: In a PHS mobile terminal 100, a control part 5 is provided with an operating state recognizing means 501 and an emission display driving control means 502. The operating state recognizing means 501 recognizes the battery voltage of a battery 61, and recognizes reception electric field intensity (RSSI value) detected by a reception electric field intensity detecting part 16, and recognizes a connecting state with the other terminal based on the receiving situation of a control signal on a connection sequence with an opposite base station at the time of caging the other terminal. An emission display driving control means 502 drives the turning-on or flashing of the LED of an emission display part 56 for displaying the recognized results based on the battery voltage, the RSSI value, and the connecting state with the other terminal at the time of calling recognized by the operating state recognizing means 501.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a PHS (Personal
The present invention relates to a mobile wireless terminal such as a mobile terminal, and more particularly to an improvement in a function of displaying information related to an operation state of the terminal.

[0002]

2. Description of the Related Art In a mobile radio terminal such as a PHS mobile terminal,
As a display means for displaying various types of information, a display device having a liquid crystal display (LCD) is generally used. Typical information displayed using the LCD is information for notifying the remaining battery level, information for notifying whether the terminal is in the reception area or out of the reception area, and the like.

In such a conventional apparatus, when displaying the above-mentioned terminal operation state using an LCD, a particularly problematic point is that the visibility is low. For example, regarding the battery remaining amount notification, when the power is turned on, the battery remaining amount at that time is temporarily displayed on the LCD, or the battery remaining amount is always detected and displayed. When the terminal was used in a dark place, the remaining battery power displayed on the LCD could not be confirmed accurately.

[0004] In addition, as for the in-service area / out-of-service information, information indicating whether the terminal is in the service area or out of the service area is always displayed on the LCD, and the user checks the display information as necessary to determine whether the terminal is in the service area. It is common practice to confirm that the terminal is out of the reception area. However, in this case, if the user is using the terminal in a dark place, it is difficult to confirm the reception area / out-of-range information, and the operation is unstable. . The difficulty in viewing the display information in this case can be improved to some extent by viewing the terminal (LCD) as close to the eyes as possible.
If you are in a crowded place such as inside a train, it is difficult to remove the terminal from your bag, bring it near your eyes and check whether it is within reception area or outside reception area, making it difficult to see display information Could not be completely eliminated.

Further, in the conventional apparatus, only an LCD is prepared as a display means for displaying the operation state of the terminal and the like. Therefore, when there is a request to display further information while displaying some information on the LCD, the display cannot be performed in accordance with the request.

Further, this type of apparatus has a function of notifying the user of a connection state with a partner terminal at the time of calling, for example, as a part of a process of notifying the user of the operation state of the terminal. . According to this function, when a call is made, there is no other way to check the connection state except for listening to the ringback tone or connection state sound emitted from the receiver of the terminal. When it was necessary to use the terminal because it was crowded and it was difficult to hear the sound, it was difficult to hear the ringback tone and connection state sound emitted from the receiver of the terminal

[0007]

As described above, in the above-mentioned conventional device, the operating state of the terminal is displayed on the LCD, so that when the terminal is used in a dark place, the visibility is extremely low. And the display contents cannot be confirmed accurately.

Further, in the above-mentioned conventional apparatus, only the LCD is provided as a display means for displaying the operation state of the terminal and the like. Therefore, when some information is fixedly displayed on the LCD, another apparatus is required. There was a problem that information could not be displayed.

Further, in a conventional apparatus having a function of notifying a terminal operation state by sound, such as a connection state notification at the time of calling, a ringback tone or connection state sound emitted from a receiver of the terminal is heard. In addition, since the receiver must be close to the ear, there is a problem in that the convenience is reduced when the terminal is used in a crowded train or the like and the sound is difficult to hear.

The present invention solves the above-mentioned problems, improves the visibility of display information, and reliably recognizes the operation state of the terminal even in operation in a dark place, thereby contributing to stable operation. The purpose is to provide.

Another object of the present invention is to provide a mobile radio terminal capable of notifying other information when some information is fixedly displayed on the LCD.

Further, another object of the present invention is to confirm the operation state at the time of a call even when the terminal is crowded and the sound is difficult to hear by making the operation state and the like of the terminal visible instead of audible display. It is an object of the present invention to provide a mobile radio terminal capable of improving convenience.

[0013]

According to a first aspect of the present invention, there is provided a light-emitting display device, a detecting means for detecting an operation state of the terminal, and a detecting means for detecting the operating state of the terminal. Driving means for driving the light-emitting display element in a mode representing an operation state.

According to a second aspect of the present invention, in the first aspect of the present invention, a plurality of light emitting display elements are provided, and the driving means controls the light emitting display elements in accordance with a detection result of the detection means. Features.

According to a third aspect of the present invention, in the first aspect of the present invention, the light emitting display element comprises an element having a plurality of different luminescent colors, and the driving means controls the luminescent color in accordance with a detection result of the detecting means. Is controlled.

According to a fourth aspect of the present invention, in the first aspect of the present invention, there is provided liquid crystal display means for displaying information, and the driving means comprises a detecting means for displaying the information on at least the liquid crystal display means. Wherein the light emitting display element can be driven in accordance with the detection result.

According to a fifth aspect of the present invention, in the first to fourth aspects, the detecting means detects a state of the power supply voltage.

According to a sixth aspect of the present invention, in the first to fourth aspects, the detecting means detects a state of the received electric field strength.

A seventh aspect of the present invention is characterized in that, in the first to fourth aspects of the present invention, the detecting means detects a connection state of an outgoing / incoming call.

[0020]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration of a PHS mobile terminal 100 according to the present invention. The PHS mobile terminal 100 includes a radio unit 1 having an antenna 11, a modem unit 2, and a TDMA (Time Divis
ion Multiple Access) unit 3, communication unit 4, control unit 5
And a power supply unit 6. Further, as an accessory to the control unit 5, a key input unit 51, a liquid crystal display unit 52,
Timekeeping circuit 53, sounder 54, vibrator unit 5
5, a memory unit 56 and a light-emitting display unit 57 are provided.

In the PHS mobile terminal 100, a radio frequency signal arriving from the home base station BSH or the public base station BSP is received by the antenna 11 and then passed through the high frequency switch (SW) 12 of the radio unit 1. The data is input to the receiving unit 13. In the receiving unit 13, the received radio frequency signal is mixed with a reception local oscillation signal generated from the frequency synthesizer 14 and frequency-converted into a reception 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. Further, the radio unit 1 is provided with a reception electric field strength detection unit (RSSI) 16. The reception electric field strength detection section 16 detects the reception electric field strength of the radio frequency signal arriving from the home base station BSH or the public base station BSP, and notifies the control section 5 of the detected value.

The received intermediate frequency signal output from the receiving unit 13 is input to the demodulating unit 21 of the modem unit 2. Demodulation unit 2
At 1, digital demodulation of the intermediate frequency signal is performed,
Thereby, the digital communication signal is reproduced.

The TDMA decoding section 31 of the TDMA section 3
Extracts a digital communication signal from a time slot assigned to the own device according to an instruction from the control unit 5 and inputs the extracted digital communication signal to the communication unit 4. The communication unit 4 uses an adaptive differential PCM codec (ADPCM-C
ODEC) 41 and a PCM codec (PCM-COD)
EC) 42, and the digital speech signal is generated by the adaptive differential PCM codec 41 and the PCM codec 4
2 and sequentially reproduced as an analog speech signal via a D / A converter. The analog communication signal is amplified by a receiving amplifier (not shown) and then amplified by a speaker 4.
3 is output.

On the other hand, the transmission voice input from the microphone 44 is converted into a digital signal through an A / D converter, and the PCM codec 42 of the communication unit 4 and the adaptive difference PC
The signals are sequentially encoded by the M codec 41 to become digital communication signals. In the TDMA encoding unit 32 of the TDMA unit 3, the digital communication signal output from the adaptive difference PCM codec 41 is inserted into the time slot specified by the control unit 5 and input to the modulation unit 22 of the modem unit 2. In the modulating unit 22, the carrier signal is digitally modulated by the digital communication signal, and the modulated carrier signal is input to the transmitting unit 15 of the radio unit 1. Transmission unit 15
In the above, the modulated carrier signal is mixed with a transmission local oscillation signal generated from the frequency synthesizer 14 to be frequency-converted to a radio channel frequency specified by the control unit 5 and further amplified to a predetermined transmission power level. Is done. Then, the radio frequency signal output from the transmission unit 15 is transmitted from the antenna 11 to the home base station BSH or the public base station BSP via the high frequency switch 12.

The power supply unit 6 includes a battery 6 composed of a secondary battery.
1, a power supply circuit 62 for generating a predetermined operating voltage Vcc based on the output voltage of the battery 61, and a battery saving circuit 63. Battery saving circuit 6
Reference numeral 3 denotes a switch circuit, for example, and the radio unit 1 and the timer circuit 5 are operated in accordance with the intermittent reception cycle specified by the control unit 5.
3 is intermittently turned on and off. In some battery saving methods using the battery saving circuit 63, the operation clock is intermittently turned on and off while the operation voltage Vcc is applied.

The timer circuit 53 operates with the operating voltage Vcc supplied from the battery saving circuit 63, and comprises, for example, a counter with a preset terminal. And
By counting the reference clock with this counter, timed data representing the current time, the talk time, and the like is output.

The key input unit 51 provided with the control unit 5 has a plurality of keys for inputting various information necessary for operation control and the like. The display unit 52 includes a liquid crystal display (LCD), and displays input information from the key input unit 51 and various information related to the operation control and the like. The sounder 54 notifies a ring tone, and the vibrator unit 55 notifies an incoming call or the like by vibration. The memory unit 56 stores various information such as operation programs and telephone numbers.

The light-emitting display section 57 is composed of a light-emitting diode (LED), and displays the operating state and the like of the terminal itself by lighting or blinking the LED. In particular, the light emitting display unit 57 in the present embodiment is realized by, for example, three LEDs (57a, 57b, 57c) each capable of switching the emission color between red and green.

These three LEDs (57a, 57b, 5
7c) can be provided to the PHS mobile terminal 100 in, for example, a manner as shown in FIG. That is, FIG.
FIG. 1 is a view showing an external structure of the PHS mobile terminal 100. An LCD 52a corresponding to the display unit 52 in FIG. 1 and a call key 51a which is a component of the key input unit 51 in FIG. In addition to the redial key 51b and the end key 51c, LEDs 57a, 57b and 57c, which are components of the light emitting display unit 57 in FIG. 1, are provided. In FIG. 1, reference numeral 100b denotes a flipper, which is realized by a mechanism that can be opened and closed with respect to the terminal body 100a. When the flipper 100b is opened, various function keys such as numeric keys provided on the terminal body 100a can be operated.

The control unit 5 includes, for example, a microcomputer as a main control unit, and has ordinary control functions such as wireless channel access control means, outgoing / incoming call control means, call control means, and battery saving control means. Further, in the present embodiment, in order to cope with the control of displaying the operation state and the like of the own terminal by light using the light emitting display unit 57, the operation state recognition unit 501 and the operation state recognition unit 501
The light-emitting display drive control means 502 for driving the light-emitting display unit 57 based on the recognition result is provided in the control unit 5.

The operating state recognizing means 501 includes, for example, means for recognizing the remaining battery level (battery voltage) of the battery 61. Also, means for recognizing the received electric field strength (RSSI value) detected by the received electric field strength detection unit 16, and furthermore, when calling a destination terminal, receiving a control signal in a connection sequence with an opposite base station Means for recognizing the connection state with the partner terminal based on the information.

The light emission display drive control means 502 controls the remaining battery level and RSSI recognized by the operation state recognition means 501.
The value of the LED 57 in the light-emitting display unit 57 in a manner indicating the recognition result based on the value and the connection state with the partner terminal at the time of calling.
a, 57b, and 57c are driven to light or blink.

Hereinafter, an LED display operation in the PHS mobile terminal 100 will be described. First, an LED display operation for notifying the remaining battery level will be described with reference to FIGS. Here, FIG. 3 is a flowchart showing the battery remaining amount display operation, and FIG. 4 is a diagram showing an LED display example based on this operation. Note that, in this example, particularly during the wake-up display of the LCD 52a for about 2 seconds after the power is turned on, L
This is an example of driving the EDs 57a, 57b, 57c.

As shown in FIG. 3, when the power-on is recognized (step 301), the control unit 5 starts an initial operation (step 302) and sets the battery voltage measurement time t to "0" (step 301). 303). Thereafter, the operating state recognizing unit 501 starts measuring the battery voltage of the battery 61, and compares the measured battery voltage value with a preset voltage value (a, b, c: a>b> c). Compare (Step 3
04, 305, 306).

As a result of this comparison, if the measured battery voltage value is larger than the set voltage value a (step 304 YES), the light emission display drive control means 502 sets the three LEDs 57a, 57
b and 57c are all turned on (step 310). Also,
The measured battery voltage value is smaller than the set voltage value a and the set voltage value b
If larger (step 305 YES), three LEs
Only two of D57a, 57b and 57c are turned on (step 311). Furthermore, when the measured battery voltage value is smaller than the set voltage value b and larger than the set voltage value c (step 306 YES), the three LEDs 57a, 57b, 57c
Is turned on (step 312).

During the battery voltage measurement and LED drive control processing, the control unit 5 determines whether the battery voltage measurement time t set to “0” in step 303 has reached (t = 2 seconds). It is being monitored (step 307). Here, until the battery voltage measurement time t reaches (t = 2 seconds) (step 3
07NO), the light emission display processing is continued, and when the battery voltage measurement time t reaches (t = 2 seconds) (step 307YE).
S), proceed to main processing.

FIG. 4 is a conceptual diagram showing an LED display example based on the processing of FIG. In the figure, the display mode 1 (large capacity) corresponds to a case where a battery voltage value larger than the set voltage value a is measured.
All of a, 57b, and 57c are lit, for example, in red. The display mode 2 (medium capacity) corresponds to a case where a battery voltage value larger than the set voltage value b is measured, and two of the three LEDs 57a, 57b, and 57c are lit in red. ing. The display mode 3 (small capacity) corresponds to a case where a battery voltage value larger than the set voltage value c is measured, and only one of the three LEDs 57a, 57b, 57c is colored red. It is lit.

In this example, when the power is turned on, the remaining battery level is measured and displayed as an LED.
A battery level check mode is set by the key input unit 51, and the battery level is measured as described above by this mode setting, and the LED is set.
It may be displayed. In addition, various modifications are possible, such as changing the emission color of the LED according to the remaining battery level, blinking instead of lighting, or changing the blinking cycle so that the remaining battery level can be identified. is there.

As described above, by displaying the remaining battery power by light using the LED, even when the user uses the PHS mobile terminal 100 in a dark place, the remaining battery power can be accurately confirmed, and Appropriate operation can be performed depending on whether the remaining amount is large or small. Here, if the colors for displaying the remaining battery level are memorized, the displayed colors allow the remaining battery level to be checked at a glance.

Next, an LED for notifying whether the vehicle is in the reception area or out of the reception area according to the magnitude of the reception electric field strength.
The display operation will be described with reference to FIGS. Here, FIG. 5 is a timing chart showing the display timing of the reception area / out of service area, FIG. 6 is a flowchart showing the reception area / out of service area display operation executed at this display timing, and FIG. LE based on the control operation of No. 6
It is a figure showing the example of D display.

As shown in FIG. 5, in the PHS mobile terminal 100 of the present invention, the LEDs 57a, 57b, 57c are driven at every intermittent timing t1 [FIG. With this, the reception area / outside area display is performed. As described above, in the PHS mobile terminal 100, the battery saving circuit 63 performs the intermittent reception operation of turning on and off the reception unit 13 in accordance with the intermittent reception cycle specified by the control unit 5, but the intermittent reception operation in FIG. The timing t1 corresponds to this intermittent reception cycle.

As a specific operation, as shown in FIG.
When the RF unit (the receiving unit 13) and the control unit 5 are off (during standby operation), the battery saving circuit 63 monitors whether or not the clock time t from the previous intermittent reception has reached t1. (Step 601). Here, when the clock time t reaches t1 (step 601 YES),
The time t is set to an initial value "0" (step 60).
2) While keeping the time, the RF unit and the control unit 5 are turned on (step 603), and the synchronization establishment process is started (step 604).

Next, it is determined whether or not the synchronization has been established (step 605). If the synchronization has been established (step 605 YES), the operation state recognizing means 501 detects the received electric field intensity in the received electric field intensity detecting section 16. Received electric field strength (R
Recognize the detected RSSI value and a preset RSSI value (A, B, C, D: A>B>C>
D) (steps 607, 608, 609,
610).

As a result of this comparison, the detected RSSI value is
If the value is larger than the SSI value A (step 607 YES),
The light emission display drive control means 502 includes three LEDs 57a,
All of 57b and 57c are turned on (step 620). If the detected RSSI value is smaller than the set RSSI value A and larger than the set RSSI value B (step 608YE
S) Two of the three LEDs 57a, 57b, 57c
Only one is turned on (step 621). In addition, detection RS
SI value is smaller than set RSSI value B Set RSSI value C
If larger (step 609 YES), three LEs
Only one of D57a, 57b, 57c is turned on (step 622). Furthermore, if the detected RSSI value is
When the value is smaller than the SI value C and larger than the set RSSI value D (step 610 YES), the three LEDs 57a, 57
All of b and 57c are turned off (step 623).

If synchronization cannot be established in step 605 (step 605: NO), the detected RSSI
If the value is greater than the set RSSI value D (step 610)
As in the case of YES), the three LEDs 57a, 57b, 57
All the lights of c are turned off (step 623).

After completion of the RSSI value recognition and LED lighting control processing, the control unit 5 performs main processing other than the light emission display processing (step 611). When the main processing is completed (step 612), The RF unit and the control unit 5 are turned off (step 613), and the process returns to step 601.

FIG. 7 is a conceptual diagram showing an LED display example based on the processing of FIG. In the figure, “display mode 1” corresponds to a case where an RSSI value larger than the set RSSI value A is detected, and three LEDs 57a, 57b, 57c
Are lit, for example, in green. Also,
“Display mode 2” indicates an RS that is larger than the set RSSI value B.
This corresponds to the case where the SI value is detected, and three LEDs 57
Only two of a, 57b and 57c are lit in green. “Display mode 3” is the above-mentioned RSS
This corresponds to the case where an RSSI value larger than the I value C is detected, and only one of the three LEDs 57a, 57b, 57c is lit in green. Further, “display mode 4” corresponds to a case where an RSSI value larger than the set RSSI value D is detected, and the three LEDs 57a, 57b,
57c are all turned off.

In this example, the magnitude of the detected RSSI value is displayed by changing the number of the three LEDs 57a, 57b, 57c according to the detected RSSI value and lighting them. Alternatively, only the reception area or the outside of the reception area may be displayed alternatively. FIG. 8 shows an example of a display mode in this case. For example, FIG.
In the flowchart of FIG.
Depending on whether the SI value D is exceeded or not, three LEDs 57
A state in which the center LED 57b among a, 57b, and 57c is lit green (for example, 60 ms (milliseconds)) or all the LEDs 57a, 57b, and 57c are turned off to indicate whether the reception area is outside the reception area. It is shown.

It should be noted that also in this reception range / out-of-range display (FIGS. 7 and 8), the intermittent timing t1 during the standby operation is also set.
LED display, and the reception area /
The out-of-service confirmation mode may be sequentially set, and the reception range / out-of-service display as described above may be performed by setting this mode.

As described above, according to the present invention, the user is notified of whether the vehicle is in the reception area or out of the reception area by light using the LED display. Therefore, even when the user is using the PHS mobile terminal 100 in a dark place, it is possible to easily recognize whether the user is in the reception area or outside the reception area. In addition, even when the user is in a crowded place such as in a train, it is not necessary to bring the terminal to the vicinity of the eyes and check whether the terminal is in the reception area or out of the reception area, thereby improving usability.

Next, an LED display operation relating to a connection state at the time of transmission will be described with reference to FIGS.
Here, FIG. 9 shows a general example of a connection sequence in a case where a call is made from the PHS mobile terminal 100 (abbreviated as PS) to a destination via an opposite base station (abbreviated as CS). FIG. 10 is a diagram showing a specific example of an LED display mode based on a connection state recognized from a signal received via the base station CS according to the connection sequence of FIG.

In FIG. 9, after the calling PS goes off-hook and sends a link channel establishment request to the base station CS, transmission and reception of control signals as shown in FIG. 9 are performed between the calling PS and the base station CS. Is performed. When the negotiation between the calling side PS and the base station CS is completed, the transmission of the destination telephone number input from the key input unit 51 and the destination telephone number searched from the telephone directory stored in the memory unit 56 are started. Then, the call of the other party is started via the base station CS. At this time, a calling signal (CC) is sent from the base station CS to the calling side PS, and a ring back tone (RBT) indicating that the calling is being executed is sent. Thereafter, when a response signal (CC) is sent to the calling side PS via the base station CS due to a response from the called party, the calling side PS and the called party are in a communication state.

During this time, the calling side PS monitors the control signal transmitted to and received from the base station CS by the operation state recognizing means 501, and sends a link channel establishment request to the base station CS. The period until the response signal (CC) is received from the station CS is recognized as “connected”, and
D57a, 57b, and 57c are driven to be lit, for example, in a display mode as shown in FIG. That is, regarding the “display during connection”, the light emission display drive control unit 502
The central LED 57 of the EDs 57a, 57b, 57c
b is repeatedly driven in red, for example, in a pattern of turning on the time T1, turning off the time T2, and turning on the time T1 every period of the time T3. The specific value of the time in this case is T
1 and 125 ms for T2 and 6 for T3
25 ms is assumed.

Thereafter, the calling side PS receives the response signal (CC) via the base station CS, and recognizes that the called party has answered by the operation state recognizing means 501, and the LEDs 57a, 57b. , 57c in FIG.
Lighting driving is performed in a display mode as shown in FIG. That is, regarding the “other party response display”, the light emission display drive control means 5
In No. 02, the center LED 57b of the three LEDs 57a, 57b, 57c is continuously lit for, for example, green for about 10 seconds.

In the connection sequence shown in FIG. 9, if the other party does not respond despite the fact that the other party is being called, the base station CS sends a calling signal (CC) and RTB to the calling side PS. , A disconnection signal (DISC) and a busy tone (BT) are transmitted. At this time, the calling side PS receives the BT via the base station CS, and recognizes that it is “busy” by the operation state recognizing means 501, and the LEDs 57a, 57b, 57
For example, the lighting drive of c is performed in a manner as shown in FIG. That is, regarding the “busy display”, the light-emitting display drive control unit 502 sets the three LEDs 57a, 57b, 57
The center LED 57b of c is colored red, for example.
Driving is repeated in a pattern of lighting during the T1 period and turning off during the T2 period. The specific value of each time in this case is T1,
It is assumed that T2 is 500 ms.

The "busy" described here means the calling PS.
This is a "network busy" that cannot be connected to the destination via the base station CS because the destination is busy after the negotiation between the network and the base station CS. In addition to "busy", "local busy" may occur in which the wireless channel cannot be acquired and the connection between the calling station PS and the base station CS cannot be established. This “local busy”
Can be recognized by the control unit 5 of the calling side PS after receiving a link channel establishment request and receiving a legitimate control signal during a period from when the CC: paging signal is received. When "local busy" is recognized, "busy display" may be performed in a manner as shown in FIG. 10C, as in the case of "network busy" recognition.

In this example, during the connection sequence, after the calling PS sends out a link channel assignment request, the base station C
FIG. 10 (a) is defined as "connecting" until the response signal (CC) is received via S, and "communicating" when the response signal (CC) is received and shifted to communication. ,
It is assumed that "display during connection" and "response display" are performed as shown in FIG.

However, during the execution of the connection sequence, the connection state is being used, the other party is calling, the other party is responding, and the communication is being performed by utilizing the fact that the operation state recognition means 501 of the calling side PS can recognize the connection state from the reception state of various control signals. Recognize each state of the above, further subdivide the above definition, LED display for each item of "connecting display", "other party calling display", "other party response display", "communicating display" May be.

As described above, according to the present invention, the connection status with the partner terminal at the time of calling is notified to the user by light using the LED. Therefore, even in a crowded train or the like, when the sound is difficult to hear, or when the hands are closed, and it is not possible to hold the terminal and check the sound to notify the connection status from the receiver, The user can easily confirm the connection status by looking at the display.

Further, in a folding type terminal, L
If you set the ED so that it can be checked even when folded,
Even if the LCD cannot be checked at the time of folding, it is possible to easily check the status with the "battery remaining amount display", "reception area / outside area display", and "connection state display at the time of transmission" by LED by a predetermined operation. it can.

The display of "battery remaining amount display", "reception area / out-of-range display", and "connection state display at the time of transmission" is not limited to being performed only by the LED, and the display of the "battery" is displayed on the LCD together with the LED. “Remaining amount display”, “reception area / out-of-range display”, and “connection state display at the time of outgoing call” may be displayed.

The "battery remaining amount display" described above,
The LED display example is merely an example in any of the "reception area / out-of-range display" and "connection state display at the time of transmission", and the number of lighted LEDs, the lighting time, the lighting color, the blinking, the blinking cycle, etc. can be arbitrarily set. Can be changed. In addition, the notification targets are the above-described battery remaining amount notification, reception range / out-of-range notification,
It goes without saying that various operation states other than the connection state notification at the time of calling can be assumed.

[0063]

As described above, according to the present invention,
Since the operating state of the terminal itself is displayed by light by turning on or off the light emitting display element, an LCD is used.
The visibility can be improved as compared with the display, and even in a dark place, the operation state of the terminal can be accurately recognized and the stable operation can be performed.

Further, according to the present invention, the light emitting display element and L
By additionally providing a CD, it is possible to display further information, for example, information indicating the state of the terminal, by the light-emitting display element while any information is fixedly displayed on the LCD.

Further, according to the present invention, by using the light emitting display element, for example, an audible display relating to the connection state with the partner terminal at the time of calling can be replaced with a visible display, and the display can be performed under a congested situation. Even when the sound of the telephone unit is difficult to hear, the convenience can be remarkably improved by confirming the connection state with the partner terminal by visual display.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a PHS mobile terminal according to the present invention.

FIG. 2 is a diagram showing an external configuration of a PHS mobile terminal according to the present embodiment.

FIG. 3 is a flowchart showing an LED display operation for battery level notification.

FIG. 4 is a view showing a specific example of an LED display mode based on the processing of FIG. 3;

FIG. 5 is a diagram showing an LED display operation timing for in-service / out-of-service notification.

FIG. 6 is a flowchart showing an LED display operation based on the timing of FIG. 6;

FIG. 7 is a view showing a specific example of an LED display mode based on the processing of FIG. 6;

FIG. 8 is a view showing another specific example of the LED display mode based on the processing of FIG. 6;

FIG. 9 is a diagram showing a general example of a connection sequence between a PHS mobile terminal and a base station.

FIG. 10 is a view showing a specific example of an LED display mode based on a connection state in the connection sequence of FIG. 9;

[Explanation of symbols]

Reference Signs List 100 PHS (Personal Handyphone System) mobile terminal 100a Terminal body 100b Flipper 1 Radio unit 11 Antenna 12 High frequency switch (SW) 13 Receiver 14 Frequency synthesizer 15 Transmitter 16 Received electric field strength detector (RSSI) 2 Modem unit 21 Demodulation unit 22 Modulation unit 3 TDMA (Time Division Multiple Access) unit 31 TDMA decoding unit 32 TDMA encoding unit 4 Talk unit 41 Adaptive differential PCM codec (ADPCM-COD)
EC) 42 PCM codec (PCM-CODEC) 43 Speaker 44 Microphone 5 Control unit 501 Operating state recognition unit 502 Light emission display drive control unit 51 Key input unit 51a Call key 51b Redial key 51c End key 52 Display unit 52a LCD (liquid crystal display) 53) Clock circuit 54 Sounder 55 Vibrator unit 56 Memory unit 57 Light emitting display unit 57a, 57b, 57c LED (light emitting diode) 6 Power supply unit 61 Battery 62 Power supply circuit 63 Battery saving circuit

Claims (7)

[Claims] 1. A light-emitting display device comprising: a light-emitting display element; detection means for detecting an operation state of the terminal; and drive means for driving the light-emitting display element in a manner representing the operation state detected by the operation state detection means. A mobile wireless terminal characterized by the above-mentioned. 2. The mobile radio terminal according to claim 1, wherein a plurality of light-emitting display elements are provided, and said driving means controls said light-emitting display elements according to a stage of a detection result of said detection means. 3. The light-emitting display device according to claim 1, wherein the light-emitting display element comprises an element having a plurality of different light-emitting colors, and the driving means controls the light-emitting color according to a detection result of the detecting means. Mobile radio terminal. 4. A liquid crystal display device for displaying information, wherein the driving device drives the light emitting display element in accordance with a detection result of the detection device at least during the display of the information on the liquid crystal display device. The mobile radio terminal according to claim 1, wherein the mobile radio terminal is capable of performing the following operations. 5. The mobile radio terminal according to claim 1, wherein said detecting means detects a state of a power supply voltage. 6. The mobile radio terminal according to claim 1, wherein the detecting means detects a state of the received electric field strength. 7. The mobile radio terminal according to claim 1, wherein the detecting means detects a connection state of the incoming and outgoing call.