JP2000151882A - Communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal where the tone volume of a ringing section and the density of a display section are adjusted in common. SOLUTION: A control section 17 is operated by depressing an UP key 16e or a DOWN key 16f to adjust the tone volume of a ringing section 18 and the display density of a display section 19. Thus, in order to adjust the tone volume of the ring section 18 and the display density of the display section 19, it is not required to provide separately the UP key 16e and the DOWN key 16f. Consequently, the UP key 16e and the DOWN key 16f to adjust the tone volume of the ringing section 18 and the display density of the display section 19 can be used for both purposes. As a result, the terminal is made smaller, the number of components is decreased and the cost can also be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device represented by a facsimile device, a multifunction device having a copy function and a facsimile function, and the like.

[0002]

2. Description of the Related Art A facsimile apparatus and a multifunction peripheral include a sounding unit including a monitor speaker for monitoring a signal transmitted from a switch via a line, and an LCD for displaying an operation state of the apparatus. Is provided. And the volume of these monitor speakers and LCD
And a volume for adjusting the display density.

[0003]

However, since a volume for adjusting the volume of the monitor speaker and the display density of the LCD is required, a mounting space for mounting the volume on the device is required, and the size of the device is reduced. In addition to the hindrance, the number of parts increased and the cost increased.

The present invention has been made in view of such a problem existing in the prior art, and an object thereof is to adjust both the volume of a sounding unit and the density of a display unit. It is to provide a possible communication terminal device.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a sounding means for reproducing an audio signal, a display means for displaying an operation state of the apparatus, and Adjustment means is provided for both adjusting the volume and the display density of the display means.

According to a second aspect of the present invention, in the communication terminal device according to the first aspect, the adjusting means is an electronic volume circuit that can be adjusted stepwise. According to a third aspect of the present invention, in the communication terminal device according to the second aspect, there is provided a storage unit for storing the set value adjusted by the adjustment unit, wherein the adjustment unit is one of a sounding unit and a display unit. When the adjustment is made, the other set value is stored in the storage means, and after one adjustment is completed, the other set value stored in the storage means is read.

[0007] In the embodiments of the invention described below, the "communication terminal device" described in the claims or the means for solving the problems corresponds to the multifunction device 1, and the "ringing means" also sounds. The "display means" corresponds to the display unit 19, and the "storage means" also corresponds to the RA.
MPU11, and the "adjustment means" is MPU11, R
They correspond to the OM 12, the RAM 13, the UP key 16e, the DOWN key 16f, and the control unit 17.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the MFP 1 includes an MPU 11, a ROM 12, a RAM 13, a reading unit 14, a recording unit 15, an operation unit 16, a control unit 17, a sounding unit 18 via the control unit 17, and a control unit 17 as well. A display unit 19, an image memory 20, a codec 21, a modem 22, and an NCU 23 via the
1 to 23 are connected via a bus 24, respectively.

The MPU 11 controls each unit constituting the multifunction device 1. The ROM 12 stores a program for controlling the MFP 1. The RAM 13 temporarily stores various information related to the multifunction peripheral 1.

A reading section 14 reads image data on a document and outputs black and white binary image data. The recording unit 15 is composed of an electrophotographic printer, and records received image data and image data of a document read by the reading unit 14 on recording paper in a copy operation.

The operation unit 16 starts numeric keys (including * and # keys) 16a for inputting telephone numbers and the like, registration of abbreviated numbers, abbreviated keys 16b for transmitting from abbreviated numbers, and reading of an original. Start key 16 for
c, a communication (FAX) / copy key 16d for setting a “communication (FAX)” operation or a “copy” operation, an UP key 16e for adjusting the volume of the sounding unit 18 and the display density of the display unit 19, and DOWN. Various operation keys such as a key 16f and a hook key 16g having on-hook and off-hook functions are provided.

The control unit 17 includes a sounding unit 18 and a display unit 19
Control. The sounding unit 18 composed of a monitor speaker
Ringing is performed based on a signal transmitted from the exchange via the telephone line L. A display unit 19 such as an LCD displays various information such as the operation state of the multifunction peripheral 1.

An image memory 20 temporarily stores received image data and image data read by the reading unit 14 and compression-encoded by the codec 21 according to the MH, MR, or MMR method. The codec 21 transmits the image data read by the reading unit 14 to the MH, MR, or MMR for transmission.
Encoding is performed by a method or the like. The codec 21 decodes the received image data.

The modem 22 conforms to the ITU-T Recommendation T.30. 30 based on a facsimile transmission control procedure according to V.30. 1
7, V. 27ter, V.A. Modulation and demodulation of transmission / reception data in accordance with any one of E.29 and the like. The NCU 23 has a function of controlling connection with the telephone line L and detecting transmission and reception of a dial signal corresponding to a fax number of the other party.

FIG. 2 shows the control unit 17. As shown in the figure, the monitor output signal Mout is input between the terminal a1 of the analog switch ASW and the capacitor C. Then, the monitor output signal Mout is input to the sounding unit 18 via the capacitor C and the amplifier circuit 31 for amplifying the audio signal. The electronic volume circuit 32 is connected to the terminal c1 of the analog switch ASW. The terminal b1 of the analog switch ASW is connected to the terminal c2 of the analog switch ASW and the display unit 19, and the power supply Vss (for example,-
12 [V]). Analog switch AS
The terminal a2 of W is grounded via the resistor Rb. M
The control signal Cont from the PU 11 is the transistor Tr
Is entered in the base. The emitter of the transistor Tr is grounded. The collector of the transistor Tr is connected to the control terminal of the analog switch ASW, and is connected to the power supply Vcc (for example, 5 [V]) via the resistor Rc.
It is connected to the.

Next, the operation of the control unit 17 will be described. When the control signal Cont from the MPU 11 becomes “H”, the transistor Tr becomes “ON”, and the node N1 becomes “L”. Therefore, the terminals c1 and c2 of the analog switch ASW are connected to the terminal a, respectively.
1 and a2. As a result, the volume adjustment of the sounding unit 18 is determined by the electronic volume 32. At this time, the density of the display unit 19 is determined by the combined resistance of the resistors Ra and Rb.

On the other hand, when the control signal from the MPU 11 is "L"
, The transistor Tr is turned off,
The node N1 becomes “H”. Therefore, the terminals c1 and c2 of the analog switch ASW are connected to the terminals b1 and b, respectively.
2 is connected. As a result, the density adjustment of the display unit 19
It is determined by the combined resistance of the electronic volume circuit 32 and the resistor Ra. Therefore, the density of the display unit 19 is adjusted by the electronic volume circuit 32. At this time, the sounding unit 18
Is determined by the monitor output signal Mout.

FIG. 3 shows the electronic volume circuit 32. As shown in FIG.
1, control signals ContA to ContC are input from the input terminals. Also, they are grounded via the resistors R1 to R8. The output terminal of the decoder 33 is connected to the terminal c1 of the analog switch ASW.

Next, the operation of the electronic volume circuit 32 will be described. When the UP key 16e of the operation unit 16 is pressed, the control signals ContA to Cont from the MPU 11
C is input to the decoder 33. Then, the decoder 33
Is based on the control signals ContA to ContC,
The resistances R1 to R8 are selected, and their resistance values increase.
As a result, the partial pressure of the resistors R1 to R8 increases, and the volume of the sounding unit 18 increases. Further, the display density of the display unit 19 is increased.

On the other hand, when the DOWN key 16f of the operation unit 16 is pressed, the control signals ContA to
ContC is input to the decoder 33. Then, in the decoder 33, the resistances R1 to R8 are selected based on the control signals ContA to ContC, and the resistance values decrease. As a result, the partial pressure by the resistors R1 to R8 decreases, and the sound volume of the sounding unit 18 decreases. The display unit 19
Display density is reduced.

The operation of the multifunction device 1 configured as described above for adjusting the volume of the sounding unit 18 and the density of the display unit 19 will be described with reference to flowcharts shown in FIGS. This operation is performed in the ROM 12
Is executed under the control of the MPU 11 based on the program stored in the.

In step S1, the hook key 16
It is determined whether g has been pressed. Hook key 16g
If is pressed, it is determined that the volume adjustment of the sounding unit 18 is performed, and the process proceeds to step S4. On the other hand, hook key 1
If 6g is not pressed, it is determined that the adjustment is for adjusting the display density of the display unit 19, and the process proceeds to step S2.

In step S2, the UP key 16e
Alternatively, it is determined whether or not the DOWN key 16f has been pressed. If the UP key 16e or the DOWN key 16f has been pressed, the process proceeds to step S3. On the other hand, UP key 1
If 6e or the DOWN key 16f is not pressed, the process returns to the step S1.

In step S3, the above-mentioned step S
Based on the depression of the UP key 16e or the DOWN key 16f in 2, the set value of the display density is set in the decoder 33 constituting the electronic volume circuit 32. That is,
The current display density is adjusted based on the depression of the UP key 16e or the DOWN key 16f.

While the display density of the display section 19 is being adjusted, each terminal c1, c2 of the analog switch ASW is set.
Are connected to the terminals b1 and b2, respectively. In other words, the terminals c1 and c2 of the analog switch ASW are
The terminals are connected to terminals b1 and b2 which are normally located.

In step S 4, the set value of the display density currently set in the decoder 33 of the electronic volume circuit 32 is stored in the RAM 13. In step S5, the set value of the sound volume stored in the RAM 13 is read based on the depression of the hook key 16g in step S1. Then, the read set value is set in the decoder 33 included in the electronic volume circuit 32. In other words, based on the volume setting,
The volume of the sounding unit 18 is set.

In step S6, the terminals c1 and c2 of the analog switch ASW are connected to the terminals a1 and a2, respectively.
2 is connected. That is, based on the depression of the hook key 16g in step S1, the control signal Cont
Becomes "H", the transistor Tr becomes "ON", and the node N1 becomes "L". As a result, the terminals c1 and c2 of the analog switch ASW are connected to the terminals a
1 and a2.

In step S11 shown in FIG.
It is determined whether the P key 16e or the DOWN key 16f has been pressed. UP key 16e or DOWN key 16
If f is pressed, the process moves to step S12. On the other hand, if the UP key 16e or the DOWN key 16f has not been pressed, the process proceeds to step S13.

In step S12, the UP key 16e or the DOWN key 16f in step S11 is used.
The set value of the sound volume is set in the decoder 33 constituting the electronic volume circuit 32 based on the depression of. That is,
The current volume is adjusted based on the depression of the UP key 16e or the DOWN key 16f.

In step S13, the hook key 1
It is determined whether 6g has been pressed again. When the hook key 16g is pressed again, the UP key 16g is pressed.
It is determined that the volume adjustment of the sounding unit 18 based on the depression of the e or the DOWN key 16f has been completed, and the process proceeds to step S14. Even if the UP key 16e or the DOWN key 16f is not pressed, that is, even if the volume of the sounding unit 18 is not adjusted, when the hook key 16g is pressed again, the process proceeds to step S14. Therefore, the UP key 16e or the DOWN key 1 in step S11 is used.
The volume adjustment of the sounding unit 18 is performed between the pressing of the key 6f and the pressing of the hook key 16g again determined in this processing.

At step S14, the terminals c1 and c2 of the analog switch ASW are connected to the terminals b1 and b1, respectively.
b2. That is, when the control signal Cont becomes "L" based on the pressing of the hook key 16g again in the step S5, the transistor Tr becomes "OF".
F "state, and the node N1 becomes" H ". As a result, the terminals c1 and c2 of the analog switch ASW are connected to the terminals b1 and b2, respectively. That is, it is returned to the terminals b1 and b2 located at the normal time.

Note that while the volume of the sounding section 18 is being adjusted, that is, from step S11 to step S13, the terminals c1 and c2 of the analog switch ASW are set.
Are connected to the terminals a1 and a2, respectively. As a result, the display density of the display unit 19 is determined by the combined resistance of the resistors Ra and Rb.

In step S15, the UP key 16
e or the set value of the volume adjusted based on the depression of the DOWN key 16f is stored in the RAM 13. Step S1
At 6, the set value of the display density stored in the RAM 13 is read. Then, the read set value is set in the decoder 33 included in the electronic volume circuit 32. That is, based on the set value, the display unit 1
Nine display densities are set.

As described above, according to the present embodiment, the following operations and effects can be obtained. (1) The decoder 33 constituting the electronic volume circuit 32 is operated based on the depression of the UP key 16e or the DOWN key 16f. For this reason, the volume of the sounding unit 18 and the display density of the display unit 19 are adjusted. Therefore, the sounding unit 18
For adjusting the volume of the image and the display density of the display unit 19
It is not necessary to separately provide the key 16e and the DOWN key 16f. Therefore, the UP key 16e and the DOWN key 16f for adjusting the sound volume of the sounding unit 18 and the display density of the display unit 19 can be shared. As a result, the size of the device can be reduced, and the number of parts decreases.
Cost can also be suppressed.

(2) While the display density of the display unit 19 is being adjusted, each terminal c1 and c2 of the analog switch ASW
Are connected to the terminals b1 and b2, respectively. In other words, the terminals c1 and c2 of the analog switch ASW are
The terminals are connected to terminals b1 and b2 which are normally located. For this reason, the volume of the sounding section 18 depends on the monitor output signal Mout.
Is determined by Therefore, even while the display density of the display unit 19 is being adjusted, the sound volume of the sounding unit 18 does not greatly change and the sound does not become difficult to hear. (3) On the other hand, while the volume of the sounding unit 18 is being adjusted, that is, from step S11 to step S13 shown in FIG. 5, each terminal c1, c2 of the analog switch ASW
Are connected to the terminals a1 and a2, respectively. Therefore, the display density of the display unit 19 is determined by the combined resistance of the resistors Ra and Rb. Therefore, even while the sound volume of the ringing unit 18 is being adjusted, the display density of the display unit 19 does not greatly change and does not become difficult. In addition, after adjusting the volume, the decoder 33 included in the electronic volume circuit 32 is set to the set value of the display density stored in the RAM 13. As a result, while the volume of the sounding unit 18 is being adjusted, in other words, only for a short time, the resistance Ra is low.
The display density of the display unit 19 is determined by the combined resistance of the resistance Rb and the resistance Rb. Therefore, there is no possibility that the display unit 19 will cause any trouble even if the time is short.

(4) When the volume of the sounding unit 18 is adjusted, the set value of the display density is stored in the RAM 13. Subsequently, the set value of the sound volume stored in the RAM 13 is read. After the volume is adjusted, the set value of the volume is stored in the RAM 13. Thereafter, the set value of the display density stored in the RAM 13 is read.

On the other hand, when the display density of the display unit 19 is adjusted, the set value of the volume is stored in the RAM 13. Subsequently, the set value of the display density stored in the RAM 13 is read. After the display density is adjusted and the hook key 16g is pressed, the set value of the display density is stored in the RAM 13. Thereafter, the set value of the sound volume stored in the RAM 13 is read.

Therefore, when one of the adjustments is performed,
The other set value is stored, and after one adjustment is completed, RA
The other set value stored in M13 is read. Therefore, one adjustment does not hinder the other.

(5) The electronic volume circuit 32 has an UP
The control signal Co from the MPU 11 is set based on the set value by pressing the key 16e or the DOWN key 16f or the set value of the volume and the display density stored in the RAM 13.
ntA to ContC are input. Therefore, the electronic volume circuit 32 can be adjusted in eight stages. Therefore, the volume of the sounding unit 18 and the display density of the display unit 19 can be adjusted stepwise as desired by the user.

The above embodiment can be embodied with the following modifications.・ Control unit 1 shown in FIG.
7 may be changed to the control unit 17 shown in FIG.
That is, as shown in FIG. 6, the monitor output signal Mout
Is a contact A1 of a transfer contact type relay Ry1,
It is input to the capacitor C. Then, the monitor output signal Mout is input to the sounding unit 18 via the capacitor C and the amplifier circuit 31 for amplifying the audio signal. The electronic volume circuit 32 is connected to the contact C1 of the relay Ry1. The terminal B1 of the relay Ry1 is
Contact C of BB (Make Before Break) contact type relay Ry2
2 and the display unit 19, and to the power supply Vss (for example, -12 [V]) via the resistor Ra. Here, the MBB contact means a contact mechanism in which the normally open contact is closed before the normally closed contact is opened. Relay Ry2
Contact M2 is grounded via a resistor Rb. MP
The control signal Cont from U11 is input to the base of the transistor Tr. The emitter of the transistor Tr is grounded. The collector of the transistor Tr is
The terminal F1 of the coil L1 in the relay Ry1, the anode of the diode D1 for protecting the coil L1 of the relay Ry1, and the terminal F of the coil L2 in the relay Ry2
2 and an anode of a diode D2 for protecting the coil L2 of the relay Ry2. The cathode of the diode D1 is connected to the terminal E1 of the coil L1 in the relay Ry1 and the power supply Vcc (for example, 5 [V]). The cathode of the diode D2 is connected to the terminal E2 of the coil L2 in the relay Ry2 and the power supply Vcc.

Next, the operation of the control unit 17 will be described. When the control signal Cont from the MPU 11 becomes “H”, the transistor Tr becomes “ON”, and the node N1 becomes “L”. Therefore, the relay Ry
1 and Ry2, the coils L1 and L2 are excited and the relay R
The movable contacts of y1 and Ry2 are connected to the contacts A1 and M2. Therefore, each terminal C1, C2 of relay Ry1, Ry2
Are connected to the contacts A1 and M2, respectively. as a result,
The volume adjustment of the sounding unit 18 is determined by the electronic volume 32. At this time, the density of the display unit 19 is determined by the combined resistance of the resistors Ra and Rb.

On the other hand, when the control signal from the MPU 11 is "L"
, The transistor Tr is turned off,
The node N1 becomes “H”. Therefore, the relays Ry1,
The coils L1 and L2 of Ry2 are not excited and the relay Ry
1 and Ry2 are connected to the terminal B which is located at the normal time.
1 and B2. Therefore, the relays Ry1, Ry2
Are connected to terminals B1 and B2, respectively. As a result, the density adjustment of the display unit 19 is determined by the combined resistance of the electronic volume circuit 32 and the resistor Ra. Therefore, the adjustment is made by the electronic volume circuit 32. At this time, the volume of the sounding section 18 is the monitor output signal M
determined by out. Even with such a configuration, the same operation and effect as those of the above embodiment can be obtained.

In the multifunction device 1 or the facsimile apparatus having the answering machine function, the sound of the recorded message or the like may be sounded by the sounding unit 18. In this case, the reproduction key (not shown) is equivalent to the hook key 16g in step S1 shown in FIG. The end of the message is equivalent to pressing the hook key 16g again in step S13 shown in FIG. With this configuration, the operation and effect of the above-described embodiment can be obtained even when a recorded message is reproduced.

The adjustment of the electronic volume circuit 32 may be other than eight steps. Specifically, the adjustment may be performed in 16 steps or 32 steps. -Instead of the electronic volume circuit 32, a variable volume that can be adjusted steplessly may be used.

UP key 16e or DOWN key 16f
May be used for purposes other than adjusting the sound volume of the sounding unit 18 and the display density of the display unit 19. Specifically, the key may be shared with a key for selecting a recording paper size, a key for setting an enlargement / reduction magnification, and the like. With this configuration, it is possible to further contribute to downsizing.

Further, technical ideas other than the claims grasped from the above embodiment will be described below together with their effects. [1] The communication terminal device according to claim 3, wherein the adjusting means outputs the volume or the display density of the other even when one of the adjustments is being performed.

With this configuration, even while one of the adjustments is being performed, the other does not affect the sound volume or the display density. [2] The communication terminal device according to any one of [1] to [3] and [1], further comprising an absence recording function.

With this configuration, the present invention can be applied to an apparatus having an answering machine recording function.

[0049]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the invention, the adjustment of the volume of the sounding unit and the density of the display unit can be used.

According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects described in (1), adjustment can be made in a stepwise manner. According to the third aspect of the invention, in addition to the effect of the second aspect, one adjustment does not cause any trouble to the other.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a multifunction peripheral according to an embodiment.

FIG. 2 is an explanatory diagram illustrating a configuration of a control unit.

FIG. 3 is an explanatory diagram showing an electronic volume circuit.

FIG. 4 is a flowchart showing an operation in the case of adjusting the volume of the sounding unit and adjusting the density of the display unit.

FIG. 5 is a flowchart showing an operation in a case where volume adjustment of a sounding unit and density adjustment of a display unit are performed.

FIG. 6 is an explanatory diagram showing a configuration of another control unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Multifunction machine as a communication terminal device, 11 ... MPU which comprises adjustment means, 12 ... ROM which comprises adjustment means, 13
... RAM constituting the adjusting means and storage means, 16e UP key constituting the adjusting means, 16f DOWN key constituting the adjusting means, 17 control part constituting the adjusting means, 1
8: ringing unit as ringing means, 19: display unit as display means, 32: electronic volume circuit, L: telephone line.

Claims (3)

[Claims] 1. A communication terminal device comprising: a sounding means for reproducing an audio signal; a display means for displaying an operation state of the apparatus; and an adjusting means for adjusting the volume of the sounding means and the display density of the display means. 2. The communication terminal device according to claim 1, wherein the adjusting means is an electronic volume circuit that can be adjusted step by step. 3. The communication terminal device according to claim 2, further comprising storage means for storing the set value adjusted by the adjustment means, wherein the adjustment means adjusts one of the sounding means and the display means. The communication terminal device stores the other set value in the storage unit and reads out the other set value stored in the storage unit after one adjustment is completed.