JP3001999B2 - Communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication apparatus, for example , a communication apparatus such as a facsimile apparatus .

[0002]

2. Description of the Related Art In a conventional facsimile apparatus, when calling an operator based on a function such as telephone reservation after answering, a pseudo ringing tone is generated from a speaker or the like attached to the apparatus. Hereinafter, the method will be briefly described.

A waveform as shown in FIG. 3 is created by an MPU or the like and supplied to a speaker drive circuit. The speaker drive circuit controls the speaker to sound during the ON time (Ta time) of this signal and does not output anything during the OFF time (Tb time). By repeating this periodically, a pseudo ringing tone was generated. For example, 400Hz
The on / off of the speaker was repeated at a period of, and 16 Hz modulation was applied like a bell of a telephone.

[0004]

However, conventionally, the above-mentioned Ta and Tb times are fixed. For this reason, the actual ring tone differs when receiving a call from an extension connected to the private branch exchange or when receiving a call from an external line, and the operator uses the ring tone to change the calling destination. , The same pseudo ringing tone is always output, so that it cannot be determined unless the user actually answers the telephone and answers.

Also, recently, a telephone call that has been received once is received by facsimile, and it is automatically determined whether the other party is a facsimile or a person. A method of notifying has been taken. However, even at that time, it was not possible to determine whether the call was an extension or an outside line until the user responded.

[0006]

The present invention SUMMARY OF] has been made in view of the above problems, even after answering an incoming, as playable line operator call corresponding to the pattern of the waveform of the received signal at the time of an incoming call an object of the present invention to Rukoto to. In order to achieve the above object, a communication apparatus connectable to a communication line, call <br/> which receives the call signal sent from said communication line before responding to an incoming call, said received Storage means for storing call information based on a waveform pattern of a signal ; and after receiving the call, receiving the call information based on the call information stored in the storage means when the call is received.
Provided is a communication device having control means for sounding an operator ringing tone corresponding to a waveform pattern of a ringing signal .

[0007]

According to the above arrangement, even when a connection is made to a communication line to which a plurality of types of call signals are sent at the time of an incoming call , the call signal received at the time of the call even after the call is answered is received .
The playable line operator call corresponding to the waveform pattern
In, for example, call signal and the like at the time of the external incoming call extension incoming call
If the pattern is connected to a different communication line, called
After answering the call, check whether the call was for
Data communication is intended, and the
The signal of the call signal for the extension, the outside line
Operator can be called in accordance with the waveform of the calling signal for the operator.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of an embodiment according to the present invention. In FIG. 1, reference numeral 1 denotes a control unit which controls the overall control of the present embodiment in accordance with control procedures shown in FIGS.
Reference numeral 2 denotes a reading unit for reading a transmission original or the like, 3 denotes a recording unit for permanently displaying the received data, and 4 denotes a memory (RAM) for storing control variables and the like. It has an area for storing waveforms. Reference numeral 5 denotes a speaker for outputting an operator's ringing sound and various notification sounds, and 6 denotes an operation unit, which includes operation keys and a display. Reference numeral 7 denotes a communication unit, which includes a MODEM, an NCU, and the like, and includes a dedicated telephone 7a. Reference numeral 8 denotes a timer for timing, which issues an interrupt request to the control unit 1 at a constant cycle. In this embodiment, an interrupt request signal is generated every 1 msec.

Reference numeral 9 denotes a connection line, and reference numeral 10 denotes a control bus connecting the control unit 1 to each unit. Reference numeral 20 denotes a private branch exchange that houses the line 9. In the following description, an example in which the apparatus of this embodiment is connected to another extension terminal or an external line terminal via the private branch exchange 20 will be described. Of course, the facsimile apparatus of this embodiment is directly connected to an external line. Of course, it is good.

The NCU of the communication section 7 is provided with a called signal detection section for detecting a called signal from the line 9.
The called signal detector simultaneously detects a called signal from, for example, the line shown in FIG. 2A, converts the signal into a binary waveform shown in FIG. Is output to the control unit 1 via the. Therefore, the control unit 1 measures the ringing time and the pause time of the called signal using the timer 5 based on the called signal notification information from the communication unit 7. Then, the measured time information of the called signal waveform is registered in the registration table of the memory 4.

FIG. 3 shows the detailed configuration of the registration table in the memory 4. As shown in FIG. 3, the registration table has a configuration in which the ON time and the OFF time in the called signal waveform from the communication unit 7 are sequentially stored in time series. For example, when a called signal waveform as shown in FIG. 4 comes from the communication unit 7, the signal on time indicated by the arrow A in FIG. 4 is stored in a portion indicated by a in FIG. At this time, a flag indicating the signal ON state and a time (msec unit, in this case, 200 msec) in which the ON state continues are stored.

Next, the signal-off time indicated by arrow B in FIG.
Is stored in the portion indicated by b. Similarly to the part a, the flag indicating the signal off state and the duration of the off state (mse
c) is stored. Hereinafter, the signal on time indicated by arrow C in FIG. 4 is stored in a portion indicated by c in FIG. 3, and the signal off time indicated by arrow D in FIG. 4 is stored in a portion indicated by d in FIG. Then, when a relatively long off-time is detected as in the part D,
Assuming that the patterns of A, B, C, and D are continuous, a code (end code) indicating the end of the registered waveform signal is set as shown by e in FIG.

Which part of the registration table is to be registered is managed by a registration pointer. When a pseudo-call signal is generated based on the called-signal waveform information stored in the registration table after facsimile reception or the like is performed once in response to the called signal, the pseudo-call signal is generated in the memory 4 described above. Using an execution table. FIG. 5 shows details of the execution table used when the pseudo call signal is generated.

The format of the execution table shown in FIG. 5 is the same as that of the registration table shown in FIG. 3, and is managed by the execution pointer compared to the management of the registration table by the registration pointer. When generating the pseudo call signal, first, the data of the registration table shown in FIG. Then, if the state pointed to by the execution pointer in the timer interrupt every 1 msec is in the on state, the speaker 5 is sounded. On the other hand, if the state pointed to by the execution pointer is in the off state, control is performed so as not to output an acoustic signal from the speaker 5. At this time, the timer value of the area pointed to by the pointer is decremented, and the timer value becomes “0”.
, Move the pointer to the next area. At the end of the table, data is loaded from the registration table again and the pointer is returned to the head area. By repeating the above processing, it is possible to output a pseudo paging signal substantially similar to the incoming called signal from the line.

The details of the above processing will be described below with reference to the flowcharts of FIGS. FIG. 6 is a flow chart showing processing from the stand-by state of the apparatus to detecting a called signal waveform and shifting to facsimile reception processing. FIG. 7 is a flow chart showing operator call request interruption processing. FIG. 8 is a registration table. 4 is a flowchart showing an interrupt process for generating a pseudo-call signal based on the on-time and off-time in the called signal waveform stored in FIG.

First, the processing from the stand-by state of the apparatus (step S1) to the detection of the called signal waveform and the transition to the facsimile reception processing will be described with reference to FIG. First, in step S2, it is monitored whether or not the called signal detection unit of the communication unit 6 has detected the called signal (CI) from the line 9. Upon receipt of the notification that the called signal has been detected, the process proceeds from step S2 to step S3, where the registration pointer of the memory 4 is set to the head area of the registration table. And step S4
Then, the on-time of the called signal waveform information sent from the communication unit 7, that is, the time from the first on-state to the off-state, is measured by using the timer 8 in step (1). Then, the measured time is stored in the area pointed to by the registration pointer of the registration table, and a flag indicating the ON state is set. Then, the pointer is advanced by one.

In the following step S5, the on-time measured in step S4 is checked to check whether or not the on-time is within a predetermined standard value. Here, when the measured ON time is less than the predetermined minimum value, it is determined that the measured value is out of the standard. If it is determined in step S5 that the value is out of the standard, the process returns to step S2, and the previously measured ON time is invalidated. In the case of non-standard, for example, a case where the measurement is started from the middle of the called signal may be considered.

If the ON time is within the standard, step S5
The process then proceeds to step S6, in which the off time of the called signal waveform information, that is, the time from the first off state to the detection of the on state, is measured. Then, the measured time is stored in the area pointed to by the registration pointer of the registration table, and a flag indicating the OFF state is set. Then, the pointer is advanced by one.

In the following step S7, the off-time measured in step S6 is checked, and it is checked whether or not the off-time is within a predetermined standard value. Here, when the measured off-time is less than a predetermined minimum value or when the measured off-time exceeds a predetermined maximum value, it is determined to be out of specification. If it is determined in step S7 that the value is out of the standard, the process returns to step S2, and the previously measured on-time and off-time are invalidated.

If the off time is within the standard, step S7
The process proceeds to step S8 to check whether or not the measured off time is a pause time. If it is not a pause time, step S
Returning to step 4, measurement of the ON time and the OFF time is started again.
If it is determined that it is the pause time, the process proceeds from step S8 to step S9, where the registration pointer is advanced to the next area and an end code indicating the end of the table is set. With the above processing, the registration table shown in FIG. 3 is created. For this reason, in the following step S10, the next pause period is waited, and thereafter, the processing shifts to the facsimile data reception processing in step S11.

Generally, the waveform of a called signal is composed of intermittent ON and a relatively long pause as shown in FIG. 4, and the pattern repeats. Therefore, if the off time is within a certain range (for example, 1 to 3 seconds), it may be considered that it is a pause period and thereafter, the pattern may be repeated. Other examples of the called signal waveform include the examples shown in FIGS. That is, FIGS. 9 and 10 show examples of continuous ON and a relatively long pause period, and the pattern is repeated. FIGS. 11 and 12 show an example in which an intermittent on state and a relatively long pause period are repeated, and the pattern is repeated.

In the above case, in the case of FIG. 9, there is almost no time difference between the portion A and the portion B, and the time B, which is the off time, cannot be regarded as a pause period. Therefore, FIG.
In such a case, step S4 is performed from step S8.
Then, the measurement of the ON time and the OFF time is started again. In the case of FIG. 12, the measurement of the ON time and the OFF time is performed three times, and thereafter, the pause period is measured.

Next, an operator call request interrupt process will be described with reference to FIG. When an operator interrupt instruction is received from the operation unit 6, or when an operator call request from another device during communication is detected, the processing shifts to the processing in FIG. When there is an operator call request interrupt, first, in step S15, the data of the registered registration table is loaded into the execution table by the processing of FIG. Next step S1
At step 6, the execution pointer is set at the head of the execution table, and at step S17, the interrupt prohibition is canceled and the routine returns.

Thereafter, in the processing of the timer interrupt which takes place at regular intervals, the generation control of the pseudo call signal based on the ON time and the OFF time in the called signal waveform stored in the registration table shown in FIG. 8 is performed. . When a timer interrupt occurs, the control unit 1 reads out the data in the area pointed to by the execution pointer in the execution table in step S21.
In the following step S22, it is checked whether the ON state is the OFF state. If it is ON, the process proceeds to step S23,
The ON / OFF of the speaker is repeated at a cycle of 0 Hz, and the ON control of the speaker 5 that modulates the frequency of 16 Hz like a telephone bell is performed, and the process proceeds to step S25.

On the other hand, if it is off, the process proceeds to step S24, the speaker 5 is turned off, and the process proceeds to step S25. In step S25, the timer value of the area pointed to by the execution pointer read out in step S21 is decremented by one. In the following step S26, it is checked whether or not the timer value is "0". If the timer value is not "0", the flow advances to step S31 to release the interrupt inhibition and return.

On the other hand, if the timer value is "0", the process proceeds to step S27, where the on / off control of the speaker 5 is completed, and the execution pointer is incremented by one in order to proceed to the next process. Then, the program is changed to point to the next storage area in the execution table, and the process proceeds to step S28. Step S
At 28, it is checked whether or not the execution table indicated by the execution pointer is an end code indicating the end of the table. If it is not the end code, the process proceeds to step S31.

In step S28, if the execution table pointed to by the execution pointer is an end code, the process proceeds to step S29, and data is loaded from the registration table to the execution table again as in step S15 of FIG. Then, in the following step S30, the execution pointer is set at the head of the execution table, as in step S16 in FIG. 7, and the process proceeds to step S31.

A pseudo ringing tone is generated by repeating the above interrupt processing every 1 msec. When it is desired to stop the pseudo call signal, the interruption by the timer 8 may be prohibited. By the above method,
A waveform can be stored in a registration table when a call arrives, and a pseudo ringing tone can be generated based on the registered waveform during reception.

As described above, according to the present embodiment, when a called signal from a line is detected, there is provided means for storing the ringing time and pause time (called signal waveform) of the arrived called signal. Thus, when an operator is called after the line is captured, a pseudo ringing tone can be generated according to the stored called signal waveform. This allows
For example, even when this apparatus is connected to a private branch exchange, a pseudo ringing tone that is the same as the ringing tone of an extension when a call is received from an extension terminal, and a ringing tone that is the same as the ringing tone of an external line when the call is received from an outside line. The same pseudo ringing tone as the ringing tone can be generated, the operator can specify the call destination by the ringing tone, and the telephone can be handled according to the situation.

[0030]

Other Embodiments The pseudo ringing tone obtained from the stored waveform may be controlled so as to be transmitted to a partner station through a line in telephone reservation. As a result, the partner station can recognize that the operator call is being performed with the ringing tone of the own station. The present invention may be applied to a system including a plurality of devices, or may be applied to an apparatus including a single device. Needless to say, the present invention can also be applied to a case where the above is achieved by supplying a program to a system or an apparatus.

[0031]

According to the present invention as described above,
When connected to a communication line from which a plurality of types of call signals are transmitted at the time of an incoming call , an operator corresponding to the waveform pattern of the call signal received at the time of the incoming call even after responding to the incoming call. since the call playable, for example if the pattern of extension incoming call time and external incoming call during ringing signals, etc. are connected to different communication lines, and purpose the incoming telephone after answering an incoming
Or for data communication.
There, it is possible that the calling signal <br/> No. waveforms for extension to the operator calls after determination will rows operator call corresponding to the waveform of the ringing signal for an outside line.

[Brief description of the drawings]

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

FIG. 2 is a diagram illustrating a waveform example of a called signal from a line and a binarized waveform of the called signal in the present embodiment.

FIG. 3 is a diagram showing a registration table for storing control variables of a called signal waveform according to the present embodiment.

FIG. 4 is a diagram showing a called signal waveform corresponding to a control variable of the registration table shown in FIG. 3 of the present embodiment.

FIG. 5 is a diagram illustrating an example of an execution table for storing control variables necessary for generating a pseudo ringing tone according to the embodiment;

FIG. 6 is a flowchart showing a process from the standby state of the present embodiment to detection of a called signal waveform and transition to facsimile reception processing.

FIG. 7 is a flowchart showing an operator call request interruption process according to the embodiment.

FIG. 8 is a flowchart showing an interrupt process for generating a pseudo call signal according to the present embodiment.

FIG. 9 and

FIG. 10 is a diagram showing an example of a called signal waveform which is composed of continuous ON and a relatively long pause period, and in which the pattern is repeated.

FIG. 11 and

FIG. 12 is a diagram showing an example of a called signal waveform composed of intermittent ON and a relatively long pause period, in which the pattern is repeated.

[Explanation of symbols]

 1 control unit for controlling the whole device, 2 reading unit, 3 recording unit, 4 memory, 5 speaker, 6 operating unit, 7 communication unit, 7a telephone, 8 timer, 9 lines, 10 control bus, 20 private branch exchange is there.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 1/00 H04M 11/00

Claims (3)

(57) [Claims] 1. A communication apparatus connectable to a communication line, receives the call signal sent from said communication line before responding to the incoming call, the waveform path of the received call signal
Storage means for storing call information based on a turn; and a call received at the time of the call based on the call information stored in the storage means after responding to the call.
Sounds an operator ringing tone corresponding to the signal waveform pattern
A communication device having control means for causing 2. The communication device according to claim 1, wherein the call signal transmitted from the communication line is a called signal for notifying an incoming call, and the storage means stores a waveform of the called signal. A communication device storing a waveform pattern based on the waveform pattern. 3. The communication device according to claim 1, wherein said communication device is a facsimile device.