JPS62279768A - Communication terminal equipment - Google Patents

Abstract

PURPOSE:To simplify a response, and to eliminate wasteful operation, by controlling a device so as not to generate a call tone due to the raising of a handset by an operator at a detecting time, at the time of detecting the call tone to the operator. CONSTITUTION:At the time of outputting the call signal to a telephone circuit 105, the fact is informed to a control circuit 112. The circuit 112 sends a signal to a relay 100a, and connects the circuit 105 to a hybrid circuit 116 side. At such a time, a procedure interruption affirming signal is transmitted immediately, if a handset 102 is being raised by the operator, and a switch 107 is turned on. Meanwhile, when the handset is not raised by the operator, the call tone is generated by energizing a call tone generation circuit 138. And when an off-hook state by raising the handset 102 by the operator is confirmed by a signal line 108, and also, a response state by the turning on of the switch 107 is confirmed by the signal line 108, the procedure interruption affirming signal is transmitted, and the generation of the call tone is stopped.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a communication terminal device, such as a facsimile machine, having an operator calling function.

[Prior Art] A facsimile machine having a conventional operator calling function uses a hook switch to detect whether the handset is on-hook or off-hook when there is only an operator call from the other party's machine. It worked.

(1) First conventional example When there is an operator call, if on-hook is detected, the operator is called by generating a pseudo bell sound, etc., and when the off-hook state occurs, the operator call is stopped and the line is switched to facsimile. Switch from device to phone.

Further, when an operator is called and the operator is off-hook, the operator is not called by generating a pseudo-bell sound, and the line is immediately switched from the facsimile machine to the telephone.

(2) Second Conventional Example According to another conventional example, when the handset is on-hook, an operator is called by generating a pseudo-bell sound, etc., and when the handset becomes off-hook, the operator is stopped calling and the line is switched to a facsimile. When switching from a facsimile machine to a telephone, if the handset was off-hook in advance, Momi would call the operator by emitting a pseudo-bell sound for a certain period of time, and then the line would be switched from the facsimile machine to the telephone.

[Problems to be Solved by the Invention] Therefore, in the first conventional example, when the handset is removed from the hook switch but the operator is not holding the handset, the operator ring tone from the other party's machine is not heard. Instead, the line is immediately switched from fax to telephone.

As a result, the operator may not be able to recognize the call and lose the opportunity to respond.

Further, in the second conventional example, an operator who says that the receiver is off the hook can recognize that the operator has been called by the other party's machine. However, even when the operator is holding the handset, a pseudo-bell tone is generated for a certain period of time to call the operator, so the operator must press a button, etc. to stop the generation of the pseudo-bell tone, and then hang up the phone. This has the disadvantage that the response becomes complicated and unnecessary operations are involved.

Means for Solving Mouth Opening Point] The present invention is proposed for the purpose of solving the above-mentioned problems of the prior art. a first detection means for detecting whether or not the device has an operator, a second detection means for detecting an operator call from another device, and a generator for generating an operator ring tone in accordance with the operator call detection by the second detection means. and means.

[Operation] In the above configuration, when the second detection means detects a call to the operator, and the first detection means detects that the operator is holding the telephone receiver, the generation means generates a ring tone. Control so that it does not occur.

[Example] Hereinafter, an example according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a facsimile machine that is an embodiment of the present invention.

In FIG. 1, reference numeral 100 is a network control unit (NCU) that controls connection with a line 105 of the telephone network for use in data communication etc. using the telephone network. When the switching signal sent through the switch is "0", the telephone 101 is connected to the line 105, and when it is "1", the hybrid circuit 116 and the line 10 are connected.
A relay (CML) 100a that connects 5 is included.

101 is a telephone main body, 102 is a handset connected to the telephone main body, 107 is arranged in a grip part of the handset 102,
For example, a switch that turns on when the operator picks up the handset and turns off when the operator releases the handset.

112 is a microprocessor CP0112a, and RAM1 is used for temporary storage of processing data, registers, etc.
12b, a control circuit comprising a ROM 112c storing the control programs shown in FIGS. 2 and 3, a timer T1, etc., and controlling the entire embodiment; 116, a control circuit that separates transmitting system signals and receiving system signals; 120 is a reading circuit; the reading circuit 120 sequentially reads image signals for one line in the main scanning direction from the transmitted original, creates a signal string representing binary values of "white" and "black"; A known CCD that outputs a binary signal string of "white/black" to the signal line 121.
It consists of an imaging device such as a charge-coupled device (charge-coupled device) and an optical system. 122 inputs the binarized read data output from the reading circuit 12'O to the signal line 121, and encodes it (
For example, it is an encoding circuit that outputs MH (Modified Huffman) encoded or MR (Modified Read) encoded data to the signal line 123. 124 modulates the encoded data outputted from the encoding circuit 122 via the signal line 123 based on the well-known CCITT recommendation V27ter (differential phase modulation) or ■29 (quadrature modulation) and outputs it to the signal line 125. It is a modulator.

127 is a modulator that performs modulation based on the known CCITT recommendation V21. Control circuit 112 sends a procedural signal to modulator 127 via signal line 126, modulator 127 performs modulation based on this procedural signal, and outputs modulated data to signal line 128. 129 is the signal line 125, 128
This is an addition circuit that inputs and adds the signals of , and outputs the result to the signal line 114 .

130 is a demodulator that performs demodulation based on the well-known CCITT recommendation V21, which connects the calling side facsimile to the lines 105, N
CUloo, the hybrid circuit 116, inputs the procedure signal sent via the signal line 118, performs demodulation according to V21, and outputs the demodulated data to the control circuit 112 via the signal line 131. 132 is a known CCI TTvJ
This is a demodulator that performs demodulation based on V27ter (differential value phase change network) or V29 (orthogonal modulation). Demodulator 1
32 manually performs demodulation processing on the received modulated data from the signal line 118, and performs MH (modified Huffman) decoding or M
Decoding circuit 134 for R (Modify Read) decoding
Output to. 136 is signal line 1 from the decoding circuit 134
This is a recording circuit that sequentially records the decoded binary data signals of "white" and "black and white, which are outputted to 35, line by line.

138 is a ringing tone generation circuit for calling the operator, and when the signal level of the signal output from the control circuit 112 to the signal line 139 is "0", no ringing tone is generated, and the signal level is "1°°". When , a ring tone is generated.

Further, the signal line 104 is connected to the line 105 under the control of NCUloo during a call state, and disconnected during facsimile communication. 106 is a signal line connecting the telephone set 101 and the handset 102.

from the telephone 101 to the receiver 10 when connected to the line 105
2 is removed, i.e. off-hook, or N
When the CU 100 itself forms a DC loop on the line 105, when a call is made to the line 105 and the other party answers, when the line 105 becomes open, etc.
The polarity between both lines of 5 is reversed from the previous polarity. Therefore, by monitoring the level of line 105, NCUloo
On-hook, off-hook, and the state of the line 105 can be detected.

When a call is made to the apparatus of this embodiment from a called telephone, etc., a called indicating signal (cB), which is a calling signal, is outputted from the central office switching equipment to the telephone line 105.

NCUloo detects this called indication signal in a known manner and notifies control circuit 112 via signal line 110. When the control circuit 112 receives the called detection signal, it controls the facsimile reception mode.

First, a control signal is sent to NCUloo via the signal line 110, the relay (CML) 100a is energized, and the line 105
is connected to the hybrid circuit 116 side (signal line 114 side). Here, consider a case where a preliminary telephone call is made from the other party's device, that is, a case where a PRI-Q signal (telephone ringing signal) is received.

At this time, if the operator is holding the telephone receiver 102 and the switch 107 is on, a PIF signal (procedure interruption affirmation) is immediately transmitted. On the other hand, when the operator is not holding the telephone receiver (when the switch 107 is off), the ringing tone generating circuit 138 is activated to generate a ringing tone. When the operator picks up the handset 107 and confirms via the signal line 108 that the phone is off-hook, and confirms via the signal line 109 that the operator has turned on the switch 107 and is ready to answer, the controller 112 controls the calling side facsimile machine. sends a PIF signal to stop ringing.

After that, relay (CML) 112a is turned off, and line 10
5 to the telephone 101 side. In addition, if the operator does not answer (does not pick up the handset) after a certain period of time has elapsed after the ring tone is generated, the relay (CML) is immediately activated.
Turn off t12a and connect line 105 to the facsimile side.

Next, the operation of the facsimile apparatus of this embodiment will be explained according to the flowchart of FIG.

In the normal state, the relay (CML) 112a is turned off, and the line 05 is connected to the telephone 101 side. Therefore, in step S41, a "0" level signal is output to the signal line 139 to stop the generation of the ringing tone.Then, in the following step S42, the apparatus waits for the facsimile receiving state.

When a call is made to the device of this embodiment from a called telephone, etc., a called display signal (cB), which is a calling signal, is output from the central office exchange equipment to the telephone line 105. A call indication signal is detected and notified to the control circuit 112 through the signal line 110. When the control circuit 112 receives this called detection signal, the control circuit 112 proceeds from step S42 to step S44 and thereafter, and executes control of the facsimile reception mode.

In step 344, the relay (CML) 112a is turned on. That is, a signal of signal level "1" is output to the signal line 110 to connect the telephone line 105 and the signal line 114, and the line 105 is connected to the facsimile machine side, and in step S46, the timer T1 is set to 35 seconds. do.

In the following step 348, pre-procedure processing according to the CCITT standard is executed. Here, the procedure signal is transmitted via signal line 1.
The procedure signal is received by manually inputting a signal on the signal line 131.

After that, in step S50, the image signal reception mode (D
It is determined whether the signal of the CS group has been received), and if it is in the image signal reception mode, the process advances to step S72, and if it is not the image signal reception mode, the process advances to step S52. In step S52, the telephone call mode (PRI
-Q signal reception), and if it is in the telephone call mode, the process advances to step S56, and if it is not the telephone call mode, the process advances to step S54. In step S54, it is determined whether the timer T1 for performing initial identification has timed out. If timer T1 has timed out, proceed to step 368;
If timer T has not timed out, proceed to step 34.8.

In step S56, the operator
In other words, it is checked whether the switch 107 is on and the signal line 109 has a signal level of ``1''. If the signal level is ``1'', the process advances to step S66, in which the operator i.e. signal line 1
If signal level 09 is “0”, step S58
Proceed to. In step S58, a signal with a signal level of "1°" is output to the signal line 139, and the ringing tone generation circuit 13
8 to generate a ring tone.

In step S60, the timer T1 is set to 15 seconds, and in the subsequent step S82, the operator picks up the receiver 102, that is, the signal line 109 is at the signal level "
Check whether it is 1. If the operator has not picked up the telephone receiver, that is, if the signal level on the signal line 109 is "0", the process advances to step S64, and it is determined whether the set time of the timer T1 has elapsed or not. If timer T1 has not timed out, step S62
Return to , and wait until the timer T1 setting time (15 seconds) has elapsed.
Wait until the receiver 102 is picked up.

In step S62, the operator picks up the phone, i.e.
If the signal level of the signal line 109 is "°1"° and if the timer T1 has timed out in step S64, the process advances to step S65.

In step S65, the signal level of the signal line 139 is set to 1°.
” is set to “0” and the ringing tone generated by the ringing tone generation circuit 138 is stopped. In the next step 36B, the control circuit 112
outputs a PIP signal as a procedure signal via the signal line 126, and in the following step S68 relay (CML) 112a
Turn off. That is, a signal of signal level Pao'' is output to the signal line 110, the telephone line 105 is connected to the telephone set 101, and the process is completed.

The above process allows the other device to call the operator.
When a request is made and the operator is holding the handset 102, the operator ring tone is not output and the line 105 is immediately connected from the facsimile machine to the telephone 101.
Switch to

When the operator does not have the handset 102, a ring tone such as a pseudo bell tone is generated to call the operator, and when the operator picks up the receiver 102, the line 105 is switched from the facsimile machine side to the telephone side, and a pseudo ringtone is generated to call the operator. This also stops calling the operator due to the generation of a ringing sound, etc. This allows you to record the fact that the operator has been called even if the receiver 102 is off the hook when there is a request to call the operator from the other party's machine. It became possible to do so.

Furthermore, when there is a request for "calling the operator" from the other party's machine, it is possible to provide a quiet facsimile machine that does not call the operator by generating a pseudo-bell sound when the operator is holding the handset 102. Ta.

Although the above explanation deals with the case where a telephone call is made at the beginning of facsimile transmission, the present invention is not limited to this, and can be effectively utilized when telephone communication is started after facsimile transmission is completed. The control flow in this case will be explained according to FIG.

In this case, the control circuit 112 performs the control described below.

When the facsimile transmission is completed, when the handset 102 is off-hook and the operator does not have the handset 102, the ring tone generation circuit 138 generates an off-hook alarm 7. When an off-hook alarm is generated, the off-hook alarm is stopped and the process is terminated when the handset 102 is put down and the handset becomes on-footer, or when the operator picks up the handset 1-2 and the switch 107 is turned on.

Otherwise, when the handset 102 is on-footer, or when the handset 102 is off-hook and the operator is holding the handset 102, the off-hook alarm is not generated and the process is immediately terminated.

First, in step 5142, a signal with a signal level of "0" is output as an off-hook alarm generation signal to the signal line 139, and the off-hook alarm from the ring tone generating circuit 138 is stopped.Next, in step 5144, a signal with a signal level of "0" is output to the signal line 110. 0” signal and relay (CML) 1
12a and connect line 105 to telephone 1o1. Then, in step 5146, it is checked whether facsimile transmission is selected, and if facsimile transmission is selected, the process advances to step 3148, where the same process as step S44 is executed, and the line 105 is switched to the hybrid circuit 116 (facsimile side). In step 5150, step S4
Perform the previous procedure similar to step 8. The control circuit 112 performs image transmission in the subsequent step 5152, and when the image transmission 154 is completed, performs post-procedures in step 5154. These procedures are performed according to CCITT standards. Thereafter, in step 5156, the same process as step S68 is executed, and the line 105 is connected to the telephone set 101.

Then, in the following step 8158, the control circuit 112
determines whether the handset 102 is in off-footer mode based on the signal level of the NCUloo signal line 108. When the signal level is "0", the handset 102 is set as an on-hook, and the process proceeds to step 5170, and the control ends. When the signal level is "0", it is determined that the handset 102 is off-hook, and the process proceeds to step 5160, where the signal Line 109 determines whether the operator is holding handset 102 or not. When the signal line 109 has a signal level of ``1'', it is determined that the operator is holding the telephone receiver, and the process proceeds to step 5170 to end the process. When the signal line 109 has a signal level of ``0'', the operator does not have the handset 102, so step 516
Proceeding to step 2, a signal of signal level "1" is output to the off-hook alarm generation signal of the signal line 139, and the ring tone generation circuit 1
38 to generate an off-hook alarm.

In the following step 5164, when the operator recognizes this off-hook alarm, he puts down the handset 102 as if he does not wish to make a call, and checks the signal level of the signal line 108 to determine whether the handset 102 is on-footer. The process proceeds to step 3168, where the off-hook alarm generation signal is set to "0" to stop the off-hook alarm, and the process proceeds to step 5170, where the process ends. Note that at this time, the DC loop of the line 105 is also in an open state, and the line 105 is also in an open state. If it is determined in step 5164 that the telephone is not on-hook, the process proceeds to step 5166, where the operator picks up the telephone receiver 102 and checks whether the switch 107 is turned on. When the operator picks up the telephone receiver 102, the process advances to step 5168, the off-hook alarm is turned off, and a normal conversation using the telephone 101 is made thereafter. If the switch 107 is off and the operator is not picking up the receiver 102, the process returns to step 5164.

Although the above-described embodiments took a facsimile machine as an example, the present invention is not limited to facsimile machines, but can also be applied to other communication devices, such as data communication terminal devices.

The same thing applies when calling a controller from your own machine.

[Effects of the Invention] As explained above, according to the present invention, when an operator call is received from the other party's machine or the own machine, the operator can respond to the call even when the handset is off. On the other hand, when the operator is holding the handset, it is possible to provide a communication terminal device that allows a quiet telephone connection that allows the operator to answer immediately without generating a pseudo-bell sound.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIGS. 2 and 3 are control flowcharts of this embodiment. In the figure, 100...NCU, 101...Telephone, 10
2...Telephone receiver, 105...Telephone line, 107...
Switch, 112...control circuit, 116...hybrid circuit, 138...ringing tone generation circuit.

Claims (2)

[Claims] (1) In communication terminal devices that are connected to each other via a communication medium and have an operator calling function, a first detection means detects whether or not an operator is holding a telephone receiver, and detects an operator call from another device. a second detecting means; and a generating means for generating an operator ring tone in accordance with the detection of an operator call by the second detecting means; A communication terminal device characterized in that the generating means does not generate a ringing tone when the detecting means detects that the operator lifts up the telephone receiver. (2) comprising a third detection means for detecting on/off hook of the handset, and when the second detection means detects a call to the operator, the first detection means detects that the operator is holding the handset; 2. The communication terminal device according to claim 1, wherein the third detecting means detects that the receiver is off-hook, and the generating means does not generate a ringing tone.