JPH06104962A - Incoming circuit of mobile radio - Google Patents

Abstract

(57) [Abstract] [Purpose] With regard to the incoming call display circuit of a mobile radio device, even if there are plural types of modulated incoming call tone signals, and even if it is an in-vehicle device, it is synchronized with the modulated signal of the modulated incoming call tone signal emitted from the speaker. It is an object of the present invention to provide an incoming call display circuit for a mobile wireless device capable of blinking a light emitting element. When the incoming signal is received, the output of the tone generator 1 that transmits a modulated incoming tone signal in which a signal in the voice frequency band is turned on and off is compared with a predetermined voltage, and when the voltage is higher than the predetermined voltage, the H level is set. When it is low, it is input to the comparator 3 which outputs L level, the output is input to the AND circuit 2, and the output of the enable signal output means 4 which outputs H level while receiving the incoming signal is input to the AND circuit 2, In the output of AND circuit 2,
Light-emitting element light-emitting unit 5 that blinks the light-emitting element according to the input level
Are connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention synchronizes with a modulated signal of a modulated ring tone signal emitted from a speaker of a mobile wireless device such as an on-vehicle device (on-vehicle mobile wireless device) and a portable device (portable mobile wireless device). The present invention relates to an incoming call display circuit that blinks a light emitting element.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram of a conventional portable device, and FIG. 5 is a block diagram of a conventional in-vehicle device.

In the case of the portable device shown in FIG. 4, an incoming signal is input to the control circuit 18 via the transmission / reception duplexer 6, the receiver 7, and the baseband circuit 17 of the control unit 42 of the radio unit 40. Then, the control circuit 18 sets the synthesizer 9 which sends out the radio modulated signal and the like, and notifies the CPU 19 of the incoming signal reception by the serial signal.

The CPU 19 specifies the path switching unit 20 by the user side from the tone generating unit 1 and is preset.
For example, a signal obtained by modulating a 2 KHz signal at 16 Hz,
The modulated ring tone signal in which the signal of 2 KHz is turned on and off is switched to be transmitted to the speaker 14 so that the modulated ring tone signal is emitted from the speaker 14, and the H level and the L level according to the amplitude of the modulated signal of the modulated ring tone signal. Signal is transmitted and the light emitting element of the light emitting element light emitting section 5 blinks in synchronization with the modulation signal of the modulated ring tone signal.

As described above, the blinking of the light emitting element is synchronized with the modulation signal of the modulated ring tone signal output from the speaker 14 in order to prevent the operator from feeling uncomfortable. During a call, the CPU 19 controls the path switching unit 20 to switch the audio signal transmission and reception audio signal from the microphone 15 to the receiver 13, and the audio signal from the microphone 15 is switched to the path switching unit 20 and the baseband circuit 17. , Transmitter 8,
The reception voice transmitted at the radio frequency via the transmission / reception duplexer 6 and modulated at the radio frequency is input to the receiver 13 via the transmission / reception duplexer 6, the receiver 7, the baseband circuit 17, and the path switching unit 20. Make a call by doing.

In the case of the on-vehicle device of FIG. 5, the mobile device main body 32 and the handset 33 are divided, and an incoming signal is transmitted / received by the radio unit 40 of the mobile device main body 32, the transmitter / receiver 6, the receiver 7, and the controller. It is input to the control circuit 11 via the baseband circuit 10 of 41.

Then, the control circuit 11 sets the synthesizer 9 for transmitting the radio modulated signal and the tone generator 1
Is preset by the user, for example, 2K
A signal in which a Hz signal is modulated at 16 Hz or a modulated ring tone signal in which a 2 KHz signal is turned on and off is transmitted, and the voice path of the baseband circuit 10 is muted from the incoming call to the call, and the modulated ring tone signal is output. Send to the handset 33 side and send the serial signal to the CPU of the handset 33
22 is notified that the incoming signal is received.

Then, the CPU 22 switches the path switching unit 12 so as to send the modulated ring tone signal to the speaker 14, and causes the speaker 14 to send the modulated ring tone signal. During a call, the path switching unit 12 is controlled by the CPU 22 and the voice signal transmission and reception voice signal from the microphone 15 is received by the receiver 1.
3, the audio signal from the microphone 15 is transmitted at a radio frequency via the path switching unit 12, the baseband circuit 10, the transmitter 8 and the transmission / reception duplexer 6, and the reception is modulated at the radio frequency. Voice is input to the receiver 13 via the transmission / reception duplexer 6, the receiver 7, the baseband circuit 10, and the path switching unit 12 to talk.

Note that the modulated ring tone signal emitted from the tone generator 1 has a plurality of modulation patterns according to the user's request. In the case of an on-vehicle device, the mobile device main body 32 and the handset 33 are separate casings, The tone generator 1 is a mobile unit main body 32.
Since the modulated ring tone signal from the tone generator 1 has a plurality of modulation patterns, there are a plurality of types of mobile device main bodies 32 in this respect.

The handset 33 may be connected in combination with each of the plurality of types of mobile unit main bodies, and even if a handset 33 is provided with a light emitting element and is connected to any mobile unit main unit, the modulation signal of the modulated ring tone signal is obtained. Since it is difficult to blink the light in synchronism with, the light emitting element light emitting portion is not provided.

[0011]

However, there are a plurality of types of modulation patterns of the modulated ring tone signal depending on the user's request, and in the case of a portable device, the light emitting element of the light emitting element light emitting section 21 is used for various modulated ring tone signals. In order to blink in synchronization with the modulated ring tone signal, the software that outputs H level and L level in synchronization with the modulated signal of the modulated ring tone signal is provided by the number corresponding to the modulation pattern of various modulated ring tone signals. Moreover, there is a problem that each portable device must be equipped with software that matches the modulation pattern of the modulated ringtone signal of each portable device, which is time-consuming. There is a problem that the light emitting element cannot be blinked in synchronization with the modulation signal of.

According to the present invention, even if there are a plurality of types of modulated ring tone signals, and even in the case of an in-vehicle unit, the light emitting element can be blinked in synchronization with the modulated signal of the modulated ring tone signal. The purpose is to provide.

[0013]

FIG. 1 is a block diagram showing the principle of the present invention. As shown in FIG. 1, when the incoming signal is received, the output of the tone generator 1 that transmits the modulated incoming tone signal in which the signal in the voice frequency band is turned on and off is compared with a predetermined voltage, and when the voltage is higher than the predetermined voltage, When the H level is low, it is input to the comparator 3 that outputs the L level, the output is input to the AND circuit 2, and the output of the enable signal output means 4 that outputs the H level while receiving the incoming signal is the AND circuit 2. Type in
The output of the AND circuit 2 is connected to the light emitting element light emitting section 5 which blinks the light emitting element according to the input level.

[0014]

According to the present invention, the output of the tone generator 1 for transmitting a modulated ring tone signal in which a signal in the voice frequency band is turned on and off is compared with a predetermined voltage, and when the voltage is higher than the predetermined voltage, the H level is set. When is low, it is input to the comparator 3 which outputs L level, and the output is input to the AND circuit 2.

During reception of the incoming signal, the output of the enable signal output means 4 for outputting H level is input to the AND circuit 2. Therefore, rather than the output of the AND circuit 2, when the modulated ring tone signal is higher than a predetermined level, it is H level and when it is low, it is L level.
When the level is output, the H level is output, the light emitting element of the light emitting element light emitting section 5 is turned on, and when the L level is output, the light emitting element of the light emitting element light emitting section 5 is turned off.

That is, by providing a simple circuit of the comparator 3, the AND circuit 2, and the enable signal output means 4, even if the modulation signal of the modulated ring tone signal changes, light is emitted in synchronization with the modulation signal of the modulated ring tone signal. Since the element can blink, in the case of a portable device, the above simple circuit can be added to the handset in the case of an in-vehicle device by adding the above simple circuit without installing software corresponding to multiple types of modulated ring tone signals. If added, even if the modulation signal of the modulated ring tone signal changes, the light emitting element can be blinked in synchronization with the modulation signal of the modulated ring tone signal.

[0017]

FIG. 2 is a block diagram of a vehicle-mounted device according to an embodiment of the present invention, and FIG. 3 is a block diagram of a modulated ring tone signal transmitting and receiving display circuit according to the embodiment of the present invention.

2 is different from the conventional example shown in FIG. 5 in that a comparator 3, an AND circuit 2, and a light emitting element light emitting section 5 are added to the handset 31, and the CPU 16 outputs an enable signal of H level while receiving an incoming signal. Since it is the point to output,
The difference will be mainly described below.

When an incoming signal is input, the control circuit 11
A preset modulated ring tone signal from the tone generator 1 is sent to the handset 31 side via the baseband circuit 10 and the CPU 16 of the handset 31 is notified of the ringing signal reception.

Then, the CPU 16 switches the path switching unit 12 to output the modulated ring tone signal to the speaker 14, inputs it to the comparator 3, and outputs an H level enable signal to the AND circuit 2 while receiving the ring signal. .

The comparator 3 compares the voltage with a predetermined voltage. When the voltage of the modulated ring tone signal is higher than the predetermined voltage, the H level is output, and when the voltage is low, the L level is output and input to the AND circuit 2. Therefore, when the modulated ring tone signal is higher than a predetermined level than the output of the AND circuit 2, the light emitting element is turned on, and when the modulated ring tone signal is lower than the predetermined level, the light emitting element is turned off.

In this way, even if the modulation signal of the modulated ring tone signal of the tone generator 1 changes, the handset side can keep the light emitting element blinking in synchronization with the modulated signal of the modulated ring tone signal. Can be done.

Therefore, even if the modulated signal of the modulated ring tone signal of the tone generator 1 of the controller 41 of the mobile unit 30 is different, the same handset 31 can be used, and the number of additional parts is small, so that the in-vehicle unit can be The handset 31 enables the light emitting element to blink in synchronization with the modulation signal of the modulated ring tone signal.

In the case of a portable device, the main body of the mobile unit and the handset are not separated from each other. Therefore, the main unit of the mobile unit and the handset are not separated from each other.
With the circuit of FIG. 2 in which an H level enable signal output is added while the incoming signal is being input from 16, the light emitting element can be blinked in synchronization with the modulation signals of a plurality of types of modulated incoming tone signals.

Next, with reference to FIG. 3, a description will be given of the transmission of the modulated ring tone signal from the speaker 14 and the ring display circuit for blinking the light emitting element in synchronization with the pattern of the modulated ring tone signal.
R1 to R10 in FIG. 3 are resistors, C1 to C7 are capacitors,
T is a transistor, 50 and 51 are operational amplifiers, 53 is an output adjusting volume, 3 is a comparator, 54 is a Schmitt circuit, 52 is a speaker amplifier, 14 is a speaker, 23
Is a light emitting element, and 16 is a CPU.

When an incoming signal is input, the CPU 16 outputs an H level enable signal to the AND circuit 2 while the incoming signal is being input. Also, apply 5V to 2.
It is divided into 5V, and 2.5V is input from the operational amplifier 51 as the threshold voltage of the operational amplifier 50 and the comparator 3.

When an incoming signal is input, the signal shown in FIG.
When a modulated ring tone signal in which a 2 KHz signal is turned on and off by a modulation signal or a modulated ring tone signal in which a 2 KHz signal is modulated at 16 Hz is input, the operational amplifier 50 swings the amplitude around 2.5 V. The amplified signal is input to the comparator 3 via the capacitor C2 and to the volume 53, and the input to the volume 53 is the speaker 14 via the capacitor C3, the resistor R5, the speaker amplifier 52, and the capacitor C4. To send a modulated ringtone signal to.

What is input to the comparator 3 is a threshold value of 2.5V.
When the voltage is high, the H level is output when the voltage is low, and the L level is output when the voltage is low. The L level is input to the AND circuit 2 via the Schmitt circuit 54.
The level signal is divided by the resistors R8 and R7 and input to the transistor T. When the signal is at the H level, the transistor T is turned on, when it is at the L level, the transistor T is turned off, and the light emitting element 23 blinks.
This blinking blinks at 2 KHz, but due to the optical illusion, it seems to the eye that the blinking is due to the modulated ringing tone signal 16HZ or the on / off modulated signal.

That is, the light emitting element 23 starts blinking in synchronization with the modulated ring tone signal output from the speaker 14.

[0030]

As described in detail above, according to the present invention, even if there are a plurality of types of modulated ringing tone signals, or even if the mobile unit body and the handset are separated as in the case of an in-vehicle unit, a speaker is used. There is an effect that the light emitting element can be blinked in synchronization with the modulation signal of the output modulated ring tone signal.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention,

FIG. 2 is a block diagram of an in-vehicle device according to an embodiment of the present invention,

FIG. 3 is a block diagram of a modulated ring tone signal transmission and ring display circuit according to an embodiment of the present invention,

FIG. 4 is a block diagram of a conventional portable device,

FIG. 5 is a block diagram of a conventional vehicle-mounted device.

[Explanation of symbols]

 1 is a tone generating section, 2 is an AND circuit, 3 is a comparator, 4 is an enable signal output means, 5 is a light emitting element light emitting section, 6 is a transmitter / receiver, 7 is a receiver, 8 is a transmitter, 9 is a synthesizer, Reference numerals 10 and 17 are baseband circuits, 11 and 18 are control circuits, 12 and 20 are path switching units, 13 is a receiver, 14 is a speaker, 15 is a microphone, 16, 19 and 22 are CPUs, 23 is a light emitting element, and 30, 32 is a mobile unit main body, 31 and 33 are handset, 40 is a radio unit, 41 and 42 are control units, 50 and 51 are operational amplifiers, 53 is a volume, 54 is a Schmitt circuit, T is a transistor, R1 to R10 are resistors, C1 -C7 shows a capacitor.

Claims (1)

[Claims] 1. When an incoming signal is received, the output of a tone generator (1) which transmits a modulated incoming tone signal in which a signal in a voice frequency band is turned on and off is compared with a predetermined voltage, and when the voltage is higher than the predetermined voltage. Is an enable signal output means (4) for inputting an H level to a comparator (3) that outputs an L level when it is low, inputting the output to an AND circuit (2), and outputting an H level while receiving an incoming signal. Is input to the AND circuit (2) and the output of the AND circuit (2) is connected to a light emitting element light emitting section (5) for blinking the light emitting element according to the input level. Incoming call display circuit.