JPH0638622B2 - Fax machine - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a facsimile machine.

2. Description of the Related Art Conventionally, there is known a facsimile apparatus in which a telephone is separately provided or built in and a holding tone is generated when the telephone is busy. FIG. 4 is a block diagram showing an example of such a facsimile apparatus.

This facsimile apparatus includes a communication modem 1 for performing facsimile communication, a dedicated melody generating circuit 2,
An adder 3 that selectively takes in the facsimile signal generated by the communication modem 1 and the melody signal generated by the melody generating circuit 2, a relay 6 that switches the connection between the telephone line 4 and the telephone 5, and each of the present apparatus. Control unit 7 for controlling the circuit
The control section 7 is operated by operating the operation panel 8, and the melody generating circuit 2 operates independently to generate a melody signal. This melody signal is sent to the telephone line 4 via the adder 3, the transformer 9 and the relay 6. Further, the control unit 7 switches the relay 10 to output the melody signal generated by the melody generating circuit 2 from the speaker 12 via the amplifier circuit 11.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, in order to generate a melody tone, a large number of single frequency signals corresponding to the scale are required, and these signals can be switched or turned on in an extremely short time.
It is necessary to perform OFF control. Therefore, the conventional facsimile apparatus as described above uses a dedicated melody generating circuit.

As a result, the space for accommodating the melody generating circuit must be newly secured, and the cost increases due to the addition of the melody generating circuit itself and the expansion of the device main body accommodating the melody generating circuit. There was a point.

The present invention has been made in view of the above problems, and an object thereof is to provide a facsimile device which has a simple structure, can hold down the space of the main body of the device, and can generate a melody signal without increasing the cost. To aim.

Means for Solving the Problems In order to achieve the above object, the present invention associates a single frequency signal with each of a plurality of digital data, and generates a corresponding single frequency signal by designating the digital data. It is characterized by comprising a communication modem and a control means for presetting a procedure by a program, selecting digital data according to this procedure, and taking out a single frequency signal from the communication modem.

The present invention makes it possible to use a communication modem used for facsimile communication for generating a plurality of types of single frequency signals with the above configuration, and as a result, it is not necessary to collect and prepare a dedicated melody generating circuit, which simplifies the configuration. Moreover, the melody signal can be generated without increasing cost and space.

Embodiment 1 FIG. 1 is a block diagram showing a facsimile apparatus according to an embodiment of the present invention.

In FIG. 1, 30 is a device body, 41 is an operation panel attached to the device body 30, 42 is a telephone line switchably connected to the device body 30, and 43 is a telephone line through the device body 30. It is a telephone that is switchably connected to the 42.

Further, 31 is a communication modem, 32 is a control circuit for controlling each circuit in the apparatus main body section 30 including the communication modem 31, 33 is a line transformer used for AC connection with and holding the telephone line 42, 34 is a relay for switching the connection of the telephone line 42 to the telephone 43, 35 is a speaker for monitoring transmission / reception signals, 36 is an amplifier circuit for driving the speaker 35, 37 is an amplifier circuit 36 and a communication modem 31. Is a relay for switching connection.

The communication modem 31 has a single frequency signal generation function in addition to the conventional facsimile signal generation function by modulation / demodulation.
That is, the communication modem 31 has previously associated a single frequency signal with a plurality of digital data,
When the digital data is designated, a single frequency signal corresponding to the digital data is output. In this embodiment, as the scale data, 4-bit digital data and a single frequency signal are associated as shown in Table 1.
And in this case, each single frequency signal is
It corresponds to a scale like "Le" Mi ".

By operating a predetermined button on the operation panel 41, the two functions of the communication modem 31 are mode-switched and one function is set.

The control circuit 32 has a storage unit. The memory area stores 8-bit melody data DN from address n to address m as shown in FIG. The upper 4 bits and the lower 4 bits of the melody data DN are scale data dn, dn + 1, ... dm (hereinafter collectively referred to as dn) and tone length data n, n + 1, ... m (hereinafter collectively referred to as n). Has become.

In this case, the scale data dn corresponds to the 4-bit digital data of the communication modem 31 (see Table 1). Further, the sound length data n has a one-to-one correspondence with the signal transmission times ta, tb, ... (Hereinafter, collectively referred to as t), as shown in Table 2. By adjusting the position of the scale data dn or the position of the tone length data n with respect to the digital data DN, a desired melody can be freely generated as a result.

Further, the control circuit 32 sequentially draws out the melody data DN according to the address, and draws out the melody data D
A program for sending N to the communication modem 31 to control the communication modem 31 is provided.

The operation of the facsimile apparatus configured as described above will be described below with reference to the flowchart shown in FIG.

First, a telephone call is made while the telephone set 43 is connected to the telephone line 42. At this time, when the hold button provided on the operation panel 41 is pressed, the control circuit 32 closes the relay 34 and the telephone line 42 from the telephone set 43 side to the line transformer. Switch connection to the 33 side (step (hereinafter referred to as ST) 1).

Next, the communication modem 31 is set to the single frequency signal transmission mode (ST2). Then, the head address n of the memory in which the melody data DN shown in FIG. 2 is recorded is written in the counter N on the program (ST3). Continued ST
At 4, the control circuit 32 reads out the 8-bit melody data DN recorded in the memory address written in the counter N.

Then, the control circuit 32 reads the melody data DN
Of the four-bit scale data dn and the conversion table of Table 1 to obtain the single frequency signal N (ST5), the lower four
The transmission time tN in the single frequency signal N is obtained from the bit length data n and the conversion table in Table 2 (ST
6). After this, the control circuit 32 sets the communication modem so as to generate the single frequency signal N. The N signal is transmitted (ST7). At this stage, the single frequency signal N is output to the other terminal via the relay 34 and the telephone line 42, while it is sent to the speaker 35 via the relay 37 and the amplifier circuit 36 if the relay 37 is closed. Generates a predetermined single tone.

The generation / transmission of this single frequency signal N is ST6.
It is continuously performed until the sending time tN obtained by the conversion in step ST8 is reached (ST8), and when the sending time tN is reached, it is stopped (ST9).

At this stage, the control circuit 32 checks whether or not the hold stop switch of the operation panel 41 is operated to make a hold stop request (ST10). If a stop request is made, the relay 34 is opened and the telephone line 42 is connected to the line transformer 33.
Side to the telephone set 43 side (ST11) and the operation ends.

When it is determined in ST10 that the stop request is not issued, the memory address stored in the program counter N is incremented by 1 (ST12), and the value of this counter N is stored in the memory area of the melody data DN. It is checked whether or not the final address m is exceeded (ST13).

When it is determined in ST13 that the value of the counter N does not exceed the final address m, the process returns to ST4, and the above-mentioned steps ST4 to ST12 are performed for the scale data dn + 1 and the tone length data n + 1 of the memory address n + 1. The process is repeated until the value of the counter N exceeds the final address m. When it is determined that the value of the counter exceeds the final address m, the process returns to ST3 and the above-described processes of ST3 to ST12 are performed on the leading scale data dn and the tone length data n of the melody data DN. Repeat.

In this way, a plurality of types of single frequency signals N are sequentially output to the other party's terminal in accordance with a preset procedure to generate a holding tone to notify the other party's operator of the holding of the telephone communication.

In this embodiment, while the telephone operator is notified of the hold of the telephone communication, the operator of the own station is also notified via the speaker 35 so that the hold can be appropriately confirmed.

EFFECTS OF THE INVENTION As is clear from the above description, according to the present invention, digital data is selected according to a preset procedure and designated to the communication modem, and a plurality of types of single frequency data are predetermined from the communication modem. Since the melody signal is generated according to the procedure, the melody signal can be generated without providing a dedicated melody generating circuit, which has an effect that the cost and the space are not increased.

[Brief description of drawings]

FIG. 1 is a block diagram showing a facsimile machine according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing a memory area in which melody data applied to the facsimile machine is recorded, and FIG. 3 is the facsimile machine. FIG. 4 is a block diagram showing an example of a conventional facsimile apparatus. 30 …… Main unit, 31 …… Communication modem, 32 …… Control circuit, 33 …… Line transformer, 42 …… Telephone line.

Claims (1)

[Claims] 1. A communication modem for generating a single frequency data corresponding to each of a plurality of digital data, and means for controlling the communication modem by selecting the digital data in a preset procedure. A facsimile apparatus, wherein a melody signal is generated from the communication modem.