KR0131159B1 - Fax without a ring detector and method for controlling the fax - Google Patents

Abstract

The present invention relates to a facsimile machine without ring detecting part and a method of controlling the facsimile machine. This machine does not have a conventional ring detecting part and extra equipment in attaching an answering machine thereto, and includes a relay switch (1) hooked on a telephone line connected to the public telephone network; a transformer (2) connected to a facsimile terminal of the relay switch (1); an amplifying part (3) connected to the transformer (2) and amplifying a transmitting/receiving signal; a modem (4) connected to the amplifying part (3) and modulating/demodulating the input transmitting/receiving signal; a facsimile image processing part (5) connected to the modem (4); a signal monitoring part (6) connected to the relay switch (1)'s telephone terminal (1b) and connected in parallel to an internal telephone or answering machine (15), thus monitoring a signal from the telephone line; a tone detecting part (7) detecting a calling tone from the monitoring part (6)'s output to produce a control signal to the modem (4) thus monitoring the local line; a hook-off detecting part (9) detecting the telephone's hook-off state; an input/output buffering part (10) connected to the hook-off detecting part; and a control part (11) controlling the overall operation of the facsimile.

Description

Facsimile apparatus with ring detection unit and control method

1 is a block diagram showing a conventional facsimile apparatus configuration.

2 is a block diagram showing the configuration of a facsimile apparatus according to the present invention.

3 is a flowchart illustrating a control method when a general telephone is attached to a facsimile apparatus according to the present invention.

Figure 4 is a flow chart of an embodiment showing a control method when using an automatic answering device attached to the facsimile apparatus according to the present invention.

* Explanation of symbols for the main parts of the drawings

1,12: Relay switch 2: Transformer

1a: facsimile terminal 1b: telephone terminal

3: amplification section 4: variation demodulation section

5 image processing unit 6 signal organic unit

7: tone detection unit 8: ring detection unit

9: hook-off detection unit 10: input / output unit

11 control unit 13 answering machine

14: general telephone 15: general telephone or answering machine

The present invention relates to a facsimile apparatus, and in particular, to facsimile reception without a ring detection unit to simplify the configuration and control, as well as facsimile receiving facsimile apparatus and a facsimile receiving device to remove the ring detection unit without additional configuration The control method is related. First, a conventional facsimile apparatus will be described with reference to FIG.

1 is a block diagram schematically showing a conventional facsimile apparatus configuration, in which 1 is a relay switch, 1a is a facsimile terminal, 1b is a telephone terminal, 2 is a transformer, 3 is an amplifier, 4 is a demodulation unit, and 5 is an image. 6 is a signal organic part, 7 is a tone detection part, 8 is a ring detection part, 9 is a hook-off detection part, 10 is an input / output buffer part, 11 is a control part, 12 is a relay switch, 13 is an answering machine, 14 is a telephone Will be shown respectively. As shown in the drawings, a conventional facsimile apparatus includes a relay switch 1 connected to a telephone line, a transformer 2 connected to a facsimile terminal of the relay switch 1 for impedance matching between a line and the facsimile apparatus, An amplification unit 3 connected to the transformer 2 to amplify a transmission / reception signal, a modulation demodulation unit 4 connected to the amplification unit for modulating and demodulating a transmission / reception signal, and an image processing unit 5 for facsimile image processing; A signal organic part 6 connected to the telephone terminal 1b of the relay switch 1 in parallel with the telephone 14 to monitor a signal from a trunk line telephone line, and detecting a call tone at the output of the signal organic part; A tone detector 7 for generating a control signal and monitoring a line, and a ring detector 8 connected in parallel with the telephone 14 to the telephone terminal 1b of the relay switch 1 to detect a ring signal; Of the phone Controls operation of the hook-off detector 9, the tone detector 7, the ring detector 8 and the output of the hook-off detector 9 and all the facsimile, respectively, for detecting the knock-off state. The control part 11 is comprised.

In particular, the conventional facsimile apparatus as described above had to be provided with a ring detector 8 for the facsimile receiving function. In addition, in the conventional facsimile apparatus, in order to attach the answering machine 14, a separate relay switch 12 connected to the telephone line has to be added. Therefore, in the related art, not only the price competitiveness due to the addition of components is lowered, but also the failure rate is high, and the control method is complicated by the comprehensive control including each of them. The present invention has been made to solve the above problems, and instead of detecting the ring signal through the ring detection unit, it detects and judges whether or not it is called by using the provided demodulation unit (modem). When a caller who is calling through a telephone line is an automatic call, a Calling Tone (hereinafter referred to simply as CNG) is detected. In the case of the manual call, the existing ring detection unit is required by detecting a specific key tone from the other party or his or her phone, or by determining that the call is made by detecting silence for a predetermined time and responding to the call. It is also aimed to provide a facsimile apparatus and a control method thereof, in which a ring detection unit is removed to simplify the control procedure. The present invention, in order to achieve the above object, a relay switch connected to the telephone line connected to the public telephone network; A transformer connected to the facsimile terminal of the relay switch to match an impedance between the telephone line and the facsimile device; Amplification means connected to the transformer and amplifying a transmission / reception signal; Modulation and demodulation means connected to the amplification means for modulating and outputting an input / receive signal; Facsimile image processing means connected to said modulation and demodulation means; A signal organic means connected to a telephone terminal of the relay switch and connected in parallel with an internal telephone or an answering machine to monitor a signal from the telephone line; Tone detection means for monitoring the trunk line by detecting a call theory (CNG, specific tone) at the output of the signal retaining means, generating a control signal and applying it to the modulation / demodulation means; Hook-off detecting means for detecting a hook-off state of the telephone; Input and output buffer means connected to the hook-off detection means; And a ring detection unit having a ring detecting unit including control means for controlling the overall operation of the facsimile.

In addition, the present invention provides a control of the facsimile apparatus which removes the ring detection unit including the relay switch, the transformer, the amplifying means, the modulation / demodulation means, the image processing means, the signal organic means, the tone detection means, the hook-off detection means, the input / output buffer means and the control means. A method, comprising: a first step of initializing a state of a relay switch; When the user hooks up the internal telephone according to the call of the other party (102), the CNG is detected or a specific key tone is detected and the relay switch is switched to the facsimile mode to perform facsimile reception, and the transmission condition is detected during the CNG detection or the specific tone detection. And a second step of setting the relay switch to the facsimile mode when the transmission condition is established and performing the facsimile transmission; and the third step of switching to the relay switch telephone mode when the facsimile reception or transmission is completed or the hook-on is detected. Provided is a control method of a facsimile apparatus having a ring detection unit removed. In addition, the present invention controls the facsimile apparatus which removes the ring detection unit including the relay switch, the transformer, the amplifying means, the modulation / demodulation means, the image processing means, the signal organic means, the tone detection means, the hook-off detection means, the input / output buffer means and the control means. A method, comprising: a first step of setting the relay switch to an answering machine mode; A second step of, once the auto answering device detects a ring signal and is in a hook-off state, once the auto answering device is activated, the facsimile apparatus sets a silent duration timer; A third step of continuously determining whether the CNG and the specific keytone are detected or whether the timer has exceeded the set silent duration; A fourth step of switching the relay switch to a facsimile mode and stopping the operation of the answering machine when a specific tone is detected in the third step or the silent timer is over; A fifth step of performing a facsimile reception and switching the relay switch to an automatic mode when the reception is completed; And a sixth step of stopping the operation of the automatic answering device and ending all procedures when a hang up signal is detected in the third step.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a block diagram schematically showing the configuration of a facsimile apparatus according to the present invention, in which 1 is a relay switch, 1a is a facsimile terminal, 1b is a telephone terminal, 2 is a transformer, 3 is an amplification unit, 4 is a demodulation unit, 5 denotes an image processing unit, 6 a signal organic unit, 7 a tone detection unit, 9 a hook-off detection unit, 10 an input / output buffer unit, 11 a control unit, and 15 a telephone or an answering machine.

As shown in the drawing, the facsimile apparatus according to the present invention includes a relay switch 1 connected to a telephone line and a transformer 2 for impedance matching between a line connected to the facsimile terminal of the relay switch 1 and the facsimile apparatus. An amplification unit 3 connected to the transformer 2 and amplifying a transmission / reception signal, a modulation / demodulation unit 4 connected to the amplification unit to modulate and output the received transmission / reception signal, and the modulation / demodulation unit ( 4) connected to the image processing unit 5 for facsimile image processing and the telephone terminal 1b of the relay switch 1 in parallel with the internal telephone or the answering machine 15, A signal organic part 6 for monitoring a signal, and a line to be monitored by detecting a call tone at the output of the signal organic part to generate a control signal and output the control signal to the modulation / demodulation part A tone detection unit 7, a hook-off detection unit 9 for detecting a hook-off state of the phone, an input / output buffer unit 10 connected to the hook-off detection unit, and a control unit 11 for controlling overall operations of the fax. do. In the facsimile apparatus according to the present invention configured as described above, the facsimile apparatus removes the ring detecting portion, which is essentially provided in the facsimile apparatus, separate from the ring detecting circuit of the internal telephone to receive the facsimile, and is detected by the tone detecting portion 7. By configuring the connection so that the CNG or a specific key tone is applied to the modulation and demodulation unit 4, it is possible to receive the facsimile reception by allowing the user to recognize whether the call is made.

In particular, by detecting CNG (Calling Tone) or specific keytone, and checking Silence for a certain period of time, specific keytones designated as CNG or facsimile reception are detected or silent for a certain period of time. In this case, the CED (Called Station Identification) is sent from the device and the facsimile reception state is eliminated so that the existing ring detection unit is not necessary and the additional device is not required even when the answering machine is attached. The description of other well-known components will be omitted. 3 is a flow chart of an embodiment of a facsimile control method when a general telephone is attached to the facsimile apparatus according to the present invention. First, the state of the relay switch 1 is initialized. At this time, the relay switch 1 is set in a state of connecting the telephone terminal 1b. Thus, when the user hooks off the internal telephone 15 in accordance with the call of the other party (102), the CNG is detected (103) (the other party is in case of automatic transmission), or the other party makes a manual transmission. Detect a specific key tone that has been previously designated as a reception (107) (for example, if the other party presses the numeric key '1' during manual transmission, the fax reception is received, the numeric key '2' is pressed to receive the telephone, and the numeric key '3' In the case where it is promised to press each other, the specific key means the numeric key '1'. When either of these is detected, the relay switch 1 is switched 109 from the telephone terminal 1b to the facsimile terminal 1a to perform the fax reception 110, and after the fax reception is completed, the relay switch 1 is faxed. Switching from the terminal 1a to the telephone terminal 1b (111) terminates the facsimile reception operation. In addition, during the CNG detection 103 or the detection of the specific key tone 107, the transmission condition is checked 104, and when the transmission condition is established, the relay switch 1 is set 105 in the facsimile mode to perform the facsimile transmission 106. When the hook-on is detected 108, the relay switch 1 is switched from the facsimile terminal 1a to the telephone terminal 1b (111) to terminate the facsimile transmission operation. The problem here is that facsimile automatic reception is difficult.

Therefore, in the present invention, in order to effectively solve this problem, the automatic answering device is attached to solve the problem simply. Referring to FIG. Same as

At initialization, the relay switch 1 is set 202 to the answering machine 1b mode. When there is a call from an external counterpart, when the answering machine 15 detects a ring signal and enters the hook-off state 203, the answering device is operated once (204). In the facsimile apparatus, after setting the silent duration timer 205, it is determined whether the CNG 206 and the specific key tone are continuously detected 207 or whether the timer has exceeded the set silent duration 211. When the specific tone is detected or the silent timer is over, the relay switch 1 is switched 212 from the answering machine side 1b to the facsimile side 1a and the operation of the answering machine is stopped 213. Next, the facsimile reception is performed (214). When the reception is completed, the relay switch 1 is switched from the facsimile 1a to the automatic answering device 1b, and the operation (215) is completed. At this time, if a hang up signal is detected 209 during the CNG detection 206, the specific keytone detection 207, and the Silence Timer Over 211 detection, the operation of the answering machine stops (210). This will end all procedures. The present invention configured and operated as described above enables the receiving operation of the facsimile even without removing the ring detection unit, which is separately built in all existing facsimile apparatuses, and furthermore, the automatic response device can be attached without additional relays. By doing so, the configuration and the control operation are simplified to reduce the manufacturing cost and improve the convenience of use.

Claims (3)

A relay switch 1 connected to a telephone line connected to a public telephone network; A transformer (2) connected to the facsimile terminal of the relay switch (1) to match the impedance between the telephone line and the facsimile device; Amplification means (3) connected to the transformer (2) and amplifying a transmission / reception signal; A modulation / demodulation means (4) connected to the amplifying means and configured to modulate and output an input / receive signal; Facsimile image processing means (5) connected to the side assist means (4); A signal organic means (6) connected to a telephone terminal (1b) of the relay switch (1) and connected in parallel with an internal telephone or an answering machine (15) to monitor a signal from the telephone line; Tone detection means (7) for monitoring the trunk line by detecting a call tone (CNG, specific tone) at the output of the signal retaining means, generating a control signal and applying it to the modulation / demodulation means (4); Hookoff detecting means (9) for detecting a hookoff state of the telephone; Input and output buffer means (10) connected to the hookoff detection means; And a control means (11) for controlling the overall operation of the facsimile. A relay switch 1 connected to a telephone line, a transformer 2 connected to a facsimile terminal of the relay switch 1, an amplification means 3 connected to the transformer 2, and the amplification means. Modulation and demodulation means (4) connected, a facsimile image processing means (5) connected to the modulation and demodulation means (4), and signal organic means (6) connected to the telephone terminal (1b) of the relay switch (1). ), A tone detecting means (7) for monitoring the trunk line by detecting a call tone (CNG, a specific tone) at the output of the signal retaining means and generating a control signal and applying it to the modulation / demodulation means (4), and a hook of a telephone Facsimile apparatus which removes ring detection part which has hook-off detection means 9 which detects an off state, the input-output buffer means 10 connected to the said hook-off detection means, and the control means 11 which controls the overall operation of a facsimile. Control method In a first step 101 of initializing the state of the relay switch (1); When the user hooks off the internal telephone 15 in response to the call of the other party (102), the CNG is detected (103) or a specific key tone is detected (107), and the relay switch 1 is switched to the facsimile mode 91a (109). Fax reception 110 is performed, and transmission conditions are checked 104 during the CNG detection 103 specific key tone detection 107, and when the transmission conditions are established, the relay switch 1 is set to the facsimile mode 105. A second step of facsimile transmission (106); And a third step (111) of switching to relay switch (1) telephone mode (1b) when the facsimile reception or transmission is completed or the hook-on is detected (108). Control method. A relay switch 1 connected to a telephone line, a transformer 2 connected to a facsimile terminal of the relay switch 1, an amplification means 3 connected to the transformer 2, and the amplification means. Modulation and demodulation means 4 connected, facsimile image processing means 5 connected to the modulation and demodulation means 4, and signal organic means 6 connected to the telephone terminal 1b of the relay switch 1; ), A tone detecting means (7) for monitoring the trunk line by detecting a call tone (CNG, a specific tone) at the output of the signal retaining means and generating a control signal and applying it to the modulation / demodulation means (4), a hook of a telephone Facsimile apparatus which removes ring detection part provided with hook-off detection means 9 which detects an off state, the input-output buffer means 10 connected to the said hook-off detection means, and the control means 11 which controls the overall operation of a facsimile. Control method On, a first step of the set 202, the relay switch (1) the automated apparatus (1b) mode; A second step of, once the answering machine 15 detects a ring signal and enters the hook-off state 203, once the answering machine is activated (204), and the facsimile apparatus sets a silence duration timer (205); A third step of continuously determining whether the CNG 206 and the specific key tone are detected 207 or whether the timer has exceeded 211 the set silent duration; A fourth step of switching (212) the relay switch (1) to a facsimile mode (1a) and stopping the operation of the answering machine when a specific tone is detected in the third step or the silent timer is over; A fifth step of performing a facsimile reception (214) and switching the relay switch (1) to the auto answer mode (1b) after the reception is completed (215); And a sixth step of stopping (210) the operation of the answering machine when a hang up signal is detected (209) in the third step.