KR100197058B1 - Apparatus for automatic converting communication path in a telephone - Google Patents

Abstract

The present invention relates to a telephone, comprising: a beep detection means for detecting a beep signal transmitted from an exchange through a trunk line while a call path is connected, switching means for opening and closing a call path between the trunk lines of the phone, and the beep detection means And a control means for turning off the switching means when a warning sound signal is detected to cut off a communication path between a telephone and a trunk line. Also, when a warning signal is detected for the beep detection means, It is an automatic switching device for a telephone call, characterized in that configured to output a predetermined warning sound and further comprises an alarm means.

Description

Automatic switch to call of telephone

1 is a block diagram showing the internal configuration of a typical telephone.

2 is a block diagram showing a device for automatically switching to the call of the telephone according to an embodiment of the present invention.

3 is an operation flowchart for explaining the operation of the apparatus shown in FIG.

* Explanation of symbols for main parts of the drawings

1: trunk line connection terminal 2: ring signal detection unit

3, 210: tone generating unit 4: loop circuit

5: handset 6: hook detection unit

7, 220: switching unit 8: network circuit

9: amplifier 10: speaker

11: display unit 12: memory

13, 230: microprocessor 14: keypad

15: DTMF (Dual Tone Multi-Frequency) Generation Circuit

41: trunk line connection detection unit 42: interface circuit

51: the receiver 52: the receiver

111: light emitting display section 112: display driving section

BF1-BF2: bidirectional buffer

200: beep detection unit

The present invention relates to a telephone, and in particular, if the telephone receiver is placed incorrectly, the telephone itself detects and warns the user about a situation in which the user is in a busy state and cannot receive an incoming call. It relates to an automatic switching device for a telephone call to automatically turn off a hook switch.

As the most basic necessities of life for modern people who are facing the information age, telephones are widely used and used in recent years, and as the functions are gradually advanced, they provide convenience to users such as automatic answering functions or personal mailboxes, instead of functions as simple communication devices. Functions are being developed.

1 is a block diagram showing the internal structure of a general telephone.

In the drawing, reference numeral 1 is a trunk line connecting terminal connected to an external trunk line, 2 is a ring signal sensing unit for sensing a ring signal applied from a station apparatus of a talker through this trunk line connecting terminal 1, and 3 is a sensing line. It is a tone generating unit for ringing the telephone ring to the receiver side based on the ring signal, 4 is a loop circuit that performs the interface function of the overall communication signal input and output to and from the phone terminal and the device The loop circuit is composed of a trunk line connection detecting unit 41 for detecting a connection state with a counterpart terminal and an interface circuit 42 for performing an interface function between signals between devices.

Further, reference numeral 5 denotes a handset, and 6 denotes a hook detection unit that detects an off-hook or on-hook state of a hook switch, although not shown in the drawing when the user lifts or releases the handset 5; 7 is switched on / off under the control of the microprocessor 13, which will be described later, and is a switching unit for opening and closing a communication path between a telephone and a trunk line. Will be in a state. Reference numeral 8 denotes a function for amplifying a voice signal of a sender applied from a counterpart terminal through the interface circuit 42 and the switching unit 7 or a voice signal of a user applied through a handset during transmission to a predetermined level. is a network circuit for performing signal processing for side tone, 9 is an amplifier for amplifying the signal output from the tone generator 3, and 10 is a speaker for outputting the signal output from the buffer 9; .

In addition, reference numeral 11 is a display unit to inform the user of the operation state of the phone, 12 is a memory for storing data necessary for the operation of the phone, 13 is the ring signal detection unit 2 and the trunk line connection detection unit 41 A microprocessor as a control unit for controlling the overall operation of the device based on the signal detected through the, 14 is a keypad with a number and function keys used for dialing or specific function selection, 15 is the microprocessor It is a DTMF generation circuit that outputs a DTMF (Dual Tone Multi-Frequency) signal corresponding to a key input input via the key pad 14 in accordance with the control instruction (13).

Reference numerals BF1-BF2 denote bidirectional buffers, which are not specifically shown in the figure, but open and close communication paths under the control of the microprocessor 13.

That is, in the above configuration, when the ring signal applied from the trunk line and sensed by the ring signal detecting unit 2 is input to the tone generating unit 3, the ring signal is driven by the tone generating unit 3 so that the speaker 10 is driven. Through the predetermined ringtone will be output. When the user off-hooks the handset 5, the microprocessor 13 sets the switching unit 7 to the ON state so that the user can make a call with the correspondent terminal contact. .

By the way, the following problems arise with the telephone which was mentioned above.

That is, when the user puts the handset 5 wrong after the end of the call, the beep signal is sent from the exchange. Thus, the user recognizes that the beep signal is output through the handset 52 of the handset 5. In this case, the handset 5 may be placed in the correct position. However, the beep signal sent out from the exchanger and output to the handset 52 is a predetermined small beep sound, for example, a beep band sound, which is heard when the user is away from the telephone. In addition, since the warning sound signal stops after a predetermined time, the user may not recognize that the position of the handset 5 is incorrectly placed. In addition, in a home with a child, the handset 5 is often misplaced due to mischief of the child. In addition, when the user does not recognize that the handset 5 is placed in this way, only the telephone is not recognized from the outside, and the user does not receive the necessary telephone call.

Accordingly, the present invention has been made in view of the above problems, and when the handset of the telephone is misplaced, the user can recognize it and at the same time, the telephone itself is inadvertently switched to the on-hook state by the user's careless telephone. It is an object of the present invention to provide an automatic telephone apparatus with a telephone call so as to prevent the use of the telephone.

The telephone line automatic telephone apparatus according to the present invention for achieving the above object is a signal tone detection means for detecting a warning tone signal transmitted from the exchange through the trunk line in the state that the call path is connected, and opening and closing the communication path between the phone and the trunk line And switching means for switching off the switching means for which a warning sound signal is sensed by the beep detection means and for blocking a communication path between a telephone and a trunk line, and also for the beep detection means. Is detected, further comprising an alarm means for outputting a predetermined warning sound according to the control of the control means.

That is, according to the present invention having the above-described configuration, when the user puts the handset wrongly, it is output as a warning sound, and the state of the telephone is kept in the same state as the on-hook state by turning off the switching unit which forms a communication path with the trunk line in the telephone itself. Since the user can be switched, the user can recognize the state of the phone, and the user cannot make a call from outside.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

2 is a block diagram showing an apparatus for automatically switching to a call of a telephone according to the first embodiment of the present invention. For the components that perform the same function as in the configuration of FIG. Will be omitted.

In FIG. 2, reference numeral 200 denotes a result signal detected by the microprocessor 230 by detecting a warning tone signal sent from the exchange when the switching unit 7 is turned on during a non-call and a trunk line and a communication path are formed. Is a signal sound detection unit for inputting the signal, and 210 generates a predetermined tone signal according to the ring signal detected and output by the ring signal detection unit 2, and according to the control of the microphone processor 230 to be described later. Tone generator for emitting a beep, 220 is a switching unit for on / off under the control of the microprocessor 230 to electrically couple the telephone line and the trunk line, 230 performs the normal control process for the phone and the signal tone detection The microprocessor turns off the switching unit 220 according to a detection signal input from the unit 200 to switch the telephone to an on-hook state.

Next, the operation of the apparatus having the above-described configuration will be described using the flowchart shown in FIG.

When the user lifts the handset 5 to make a call with the contact terminal of the other terminal, although not shown in the drawing, the hook detector 6 detects the off hook (OFF HOOK) state and detects the microprocessor 230. In this case, the microprocessor 230 electrically connects the telephone line and the trunk line by turning on the switching unit 220. In such a call state, the user executes a call with the correspondent of the other terminal. Subsequently, when the user puts down the handset 5 after finishing the call, the hookswitch is on-hook when the receiver 52 of the handset 5 contacts the hookswitch at the correct position, although not shown in the drawing. (ON HOON) and the switching unit 220 is turned off to terminate the call state.

By the way, when the user puts the handset 5 wrong after finishing the call, that is, when the receiver 52 of the handset 5 is out of the hookswitch position from the outside of the telephone, the hookswitch is in the off-hook state. Since the switching unit 220 is in an on state, the call path is in a connected state. At this time, although not shown in the figure, the switch warns the user by sending a predetermined warning sound signal when the switching unit 220 is in the on state for a predetermined time in a non-call state with the other terminal's communication. .

As such, when the warning sound signal from the exchanger is applied to the signal sound detecting unit 200 through the switching unit 220 and the corresponding detection signal is input to the microprocessor 230 (step ST1), the microprocessor 230 In addition to outputting a warning sound through the speaker 10 by driving the tone generator 210 (step ST2), it is determined whether the on-hook detection signal is input from the hook detector 6 (step ST3). Upon hearing the warning sound and turning on the handset 5, the warning process is terminated, and if the off-hook state is maintained for a predetermined time (step ST4), the tone generating unit 210 is controlled to stop the alarm sound output and By forcibly turning off the switching unit 220, the phone is set to the same state as the on-hook state (step ST5).

Subsequently, when the user presses the hook switch once by making or receiving a call or the like, the detection signal is input from the hook detection unit 6 to return to the normal state.

That is, according to the above embodiment, when the user puts the handset 5 of the telephone wrong, the microprocessor 230 controls the tone generator 210 to output a warning sound for a predetermined time, and thereafter the off-hook state If it is maintained, the switching unit 220 is turned off to set the phone to a reception state, thereby eliminating an unreceivable state caused by the user not recognizing the off-hook state.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

For example, in the exemplary embodiment, when a warning sound signal is detected from the signal sound detecting unit 200, the microprocessor 230 controls the tone generator 210 to output a warning sound, but in such a state, a handset ( Since the beep signal is output through 5), it is possible to perform switching off the switching unit 220 only after a predetermined time.

As described above, according to the present invention, it is possible to realize an automatic telephone apparatus by a telephone call that can generate a warning sound and switch the telephone to the same state as the on-hook state of the hook switch when the user puts the wrong handset. do.

Claims (1)

In the telephone set to determine the off-hook state of the telephone set to the non-call state, and when the off-hook state elapses for a predetermined time or more, the telephone is coupled to a telephone exchange network that sends a predetermined warning tone signal to the telephone. ; Beep detecting means for detecting a beep signal input through the trunk line from the telephone exchange network, switching means for switching on and off the communication path between the telephone and the trunk line in accordance with a predetermined control signal, and the beep signal detection means And a control means for turning off the switching means after a predetermined time to control the setting of the phone on-hook.