KR0122449B1 - Telephone having room monitoring - Google Patents

Abstract

When a caller makes a phone call, a ring signal is inputted into a telephone line(10) through the official line exchange. And in a ring detection circuit(12), the telephone line(10) detects the ring signal and outputs a ring detection signal to an MPU(20). At this time, the MPU(20) judges that the ring detection signal is detected and outputs reply message thru an LIU(14) and checks if the 1st code can be received thru a tone detector(28) and sets a digit so that the room monitoring function could be carried out.

Description

Telephone device with room monitoring

1 is a block diagram of a telephone apparatus according to the present invention.

2 is a control flowchart for performing room monitoring according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone terminal apparatus, and more particularly, to a telephone apparatus capable of performing room monitoring from outside through a telephone and a control method thereof.

Currently, most telephone terminal devices have a speakerphone function that enables voice communication using a built-in speaker and a microphone without using a handset. The speakerphone's function is no exception to the autoresponder. However, the above-mentioned general answering machine has a function of sending a response message and recording a caller's message in response to an incoming signal from outside, but can only monitor the surrounding situation of the room where the telephone is installed. I couldn't talk.

Therefore, if a user leaves the home with a child who cannot talk, the user can call home and leave a message, but there is an inconvenience in not being able to talk after grasping the actual situation in the room. . In addition, since the user cannot actually deliver a message including a parent's command or recommendation to a child who can understand the speech, the user is in a psychologically frustrating state.

Accordingly, an object of the present invention is to provide a monitoring method for transmitting a status sound in a room in response to a room monitoring code and transmitting a voice of a caller in a room in response to a room monitoring code.

Another object of the present invention is to provide a method and apparatus for monitoring a room from the outside through a microphone in an answering machine, and selectively transmitting an external voice to a room through a speakerphone when a conversation is required.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an answering machine according to the present invention. Reference numeral 10 in the drawings is a telephone line connected to the telephone exchange. 12 denotes a ring detection circuit, which detects and outputs a ring signal (call signal) input to the telephone line 10. Reference numeral 14 denotes a line interface unit (hereinafter referred to as LIU), which forms a DC current loop of the telephone line 10 in response to an input of a line control signal PCTL to interface a connection with a telephone apparatus. 16 is connected to the LIU 14 as a speakerphone circuit, and is driven in response to a speakerphone control signal to convert a signal from an external microphone 26 into an electrical signal and output the electrical signal to the LIU 14, and the LIU 14 Reproduces and outputs the signal to speaker24. 18 is a recorder holding an auto-reply message and having a memory area for recording the caller's message. 20 outputs a response message output of the recording unit 12 in response to the output of the ring detection circuit 12 through the LIU14, and outputs a status sound in the room input through the microphone 26 in response to a ROM monitoring code provided from the outside. And a microprocessor (hereinafter referred to as MPU) which collectively controls the function of transmitting the caller voice provided through the line 10 in response to the speakerphone function mode. In addition, the MPU20 cuts off the signal formed by the speakerphone call output to the LIU14 and the speakerphone circuit 16 to recover the speakerphone call in response to the input of the busy tone. A display / control unit 22 includes a display function for visually displaying display information output from the MPU 20 as user control information. 28 is a tone detector which detects the multitones and busy tone provided from the telephone line 10 and supplies them to the MPU20.

FIG. 2 is a flowchart of a ROM monitoring control according to the present invention, which is masked by a programming language in the ROM area in the MPU 20 shown in FIG.

Hereinafter, the room monitoring operation according to the present invention will be described by associating each device of FIG. 1 with each step of FIG.

First, when the caller keeps the answering machine configured as shown in FIG. 1 in the home and goes out, the MPU 20 reads the output of the ring detection circuit 12 in step 30 of FIG. 2 to check whether the ring detection signal is input. If there is no ring signal in the search step, the MPU 20 determines that a call is not received from the outside and repeats step 30. That is, the MPU20 continues to scan the output of the ring detection circuit 12.

During the operation as described above, when the caller makes a call, a ring signal is input to the telephone line 10 through a trunk line exchanger (not shown). Therefore, the ring detection circuit 12 detects the ring signal of the telephone line 10 and outputs the ring detection signal to the port Pr of the MPU20. At this time, the MPU20 determines that ring detection is performed in step 30 and outputs a response message of step 32 of FIG. 2 through the LIU14. Here, the message is a voice that the caller has already recorded in the recording unit 18. The MPU 20 performs a thirty-fourth step while transmitting the response message and checks whether the first code is received through the tone detector 28. In this case the caller digits a specific number that causes the device to perform a room monitoring function that it knows about.

Here, the first code may be, for example, #, 0, 0, 0, 7. Subsequently, in step 36, the MPU20 checks whether the received first code is a number corresponding to a preset room monitoring mode.

In addition, in step 34, if the first code is not received, the MPU 20 performs step 48 to check whether the message is completed, otherwise enters step 34, and if the message is completed, records the counterpart message of the 50th step. Steps 48 and 50 are flows for performing automatic answering of a general answering machine. In step 36, if there is a match, the MPU20 performs step 38.

In step 38, the MPU 20 checks whether another code, that is, a second code, is received from the tone detector 28. Here, the second code is a code for forming a call path in the order of the microphone 26 → speaker phone circuit 16 → LIU14 → line 10 in order to perform room monitoring in the room monitoring mode. That is, the MPU 20 causes the speaker of the caller's telephone through the microphone 26 and the line 10 to be connected in response to the second code. Here, the second code may be, for example, nine keys.

Therefore, when the second code is received in step 38, the MPU20 performs step 40 so that the situation sound in the room is transmitted to the caller.

Here, the caller may hear the room status sound provided from the microphone and digitize the third code in the state of being currently connected to the call, or digitize the busy tone or the end code.

When the third code is digitized, the caller wants to transmit his / her voice to a child or a person in the room. When the digit tone or end code is digitized, only the room monitoring of the step is performed and nothing is wrong. It is time to hang up.

Accordingly, when the third code is received in step 42 during the step 40, the MPU 20 performs the speakerphone function in step 44, or enters step 46.

Here, the third code may be, for example, a # key.

In the 44th step, the MPU 20 controls the speakerphone circuit 16 so that the caller's voice applied through the line 10 is output to the speaker 24, and the voice applied through the microphone 26 or the status sound in the room is the line 10. This step makes it sound to the caller.

In step 46, the MPU 20 checks whether a busy tone or an end code is received through the detector 28.

According to the present invention described above, there is a convenient advantage of performing room monitoring from the outside and delivering a caller's voice or having a conversation with a person in the room when necessary.

As described above, the present invention, when a specific signal is input to the telephone device having a speakerphone function, the room monitoring and the speakerphone to form a call path to enable a voice call, by automatically recovering the call path by detecting the busy tone There is an effect to maximize the use of the phone terminal device.

Claims (7)

A telephone apparatus for receiving a microphone with a surrounding sound in which a telephone is installed and transmitting it through a telephone line in response to a specific code signal provided from an external telephone, comprising: ring detecting means for detecting a ring signal through the telephone line; A tone detection stage for detecting the code signal and a busy tone through the telephone line; It is connected to the ring detecting means and the tone detecting means, and transmits a preset response message in response to the detection output of the ring signal, wherein the code signal is a code signal for room monitoring while transmitting the message. The sound received by the microphone when detected by means of monitoring control means provided on the telephone line. A telephone for receiving a surrounding sound installed by a telephone through a voice listening means in response to a specific code signal provided through a telephone line and transmitting it through the telephone line, and maintaining the telephone line and a speakerphone call function. Ring detecting means for detecting a ring signal through a line, said ring detecting means for detecting the code signal and a busy tone through the line; It is connected to the ring detecting means and the tone detecting means, and transmits a predetermined response message to the line in response to the detection of the ring signal, and in response to receiving the first code of the code signal through the tone detection means; Mode transition means for transitioning a telephone to a room monitoring mode, and room monitoring performance means for providing a sound received by the voice listening means to the telephone line in response to receiving a second code of mode transitions by the mode transition means; And control means including a call performing means for forming the speakerphone call function with the telephone line in response to receiving a third code during the monitoring of the room monitoring performing means. The telephone set as claimed in claim 2, wherein the voice listening means is a microphone that provides an electric signal as a condition sound around the telephone set. The telephone set according to claim 2, wherein the control means is implemented as a microphone processor, and wherein the first, second and third codes are signals having dual phone frequencies. 3. The telephone set according to claim 2, wherein said control means further comprises a telephone line recovery means for cutting said telephone line in response to the detection output of said busy tone. A room monitoring control method for a telephone having a circuit for detecting a ring signal and a circuit for detecting a tone signal; Transmitting a preset auto-response message in response to the detection of the ring signal; In response to the reception of a tone signal requesting room monitoring during transmission of the message, receiving the ambient sound in which the telephone is installed through a microphone, and providing the received sound to an external line of the telephone. How to feature. A method for room monitoring and speakerphone control over a telephone line of a telephone apparatus having a speakerphone function and an automatic answering function, and having a ring detecting means and a tone detecting means; Sending a preset missed response message through the telephone line when a ring signal is detected for the ring detecting means; Switching a mode state of the telephone to a room monitoring mode when a first code is received through the tone detection means; Allowing sound in the room to be applied to the telephone line through a microphone when a second code is received through the tone detection means in the monitoring mode; Forming the speakerphone function on the telephone line when a third code during the monitoring is received through the tone detection means; And cutting the telephone line when a fourth code is received through the tone detection means.