KR100431731B1 - Receiver with a built-in microphone for recording - Google Patents

Abstract

PURPOSE: A handset having a recording microphone inside is provided to simply record details of a telephone call at a low cost, record a stable voice of high quality, and prevent wiretapping. CONSTITUTION: A connection jack(20) is combined with one side of a handset(10). A connection element(11) is connected with a microphone(14) for recording by an induction line. One side of the microphone(14) is connected with the connection element(11), and the other side of the microphone(14) is connected with a receiving side speaker(12) for recording details of a telephone call. The connection jack(20) transmits voice information to an external recorder/player. The induction lines connect the microphone(14) for recording and the receiving side speaker(12), the receiving side speaker(12) and a transmitting side microphone(13), the microphone(14) for recording and the connection element(11).

Description

Receiver with a built-in microphone for recording

The present invention relates to a handset receiver with a built-in recording microphone, and more particularly, when a telephone user wants to record a call using a recording microphone built in a handset of a general landline telephone. The present invention relates to a handset and a receiver having a recording microphone in which a noise removing circuit is added so that noise can be recorded at high quality by removing noise such as sidetone.

In today's society where society is becoming more advanced and contracts are more important, there is a need for legal evidence for self-defense in conducting legal acts such as trials, and thus recording telephone conversations and leaving evidence as proof of contracts. Also

In order to record the contents of the telephone conversation, a separate microphone or a voice recorder was recorded while the telephone was placed in the receiver of the telephone. Thus, the telephone user was very uncomfortable and the sound quality was poor due to various noises and sidetones. There is a problem that is difficult to check the call content.

In order to solve the above problems, a telephone with a recording function is used in the main body of the telephone, such as a telephone having an automatic answering function. However, a telephone with a recording function is expensive and a power supply adapter for separately supplying power. There is a problem that is required.

In addition, a telephone having an automatic answering function has a recording function built into the main body of the telephone, so that the telephone user cannot recognize that his / her call is being recorded during the telephone call, so that a third party can secretly talk to the telephone user. There is a problem that can be exploited by recording.

In order to solve the above problems, Korean Patent Application No. 1999-0043213 proposed a telephone handset with a recording device, and its technical configuration is as follows.

When using a phone call, you can record and play back voice information you want users to take notes with simple key operation by using the voice recorder built in the receiver's receiver.If you want to play back the recorded voice information, It can be checked through the speaker installed on the opposite side, so it is not necessary to pick up the handset of the telephone.

However, since the technical means uses a memory chip such as a recording-only IC chip, the amount of voice information that can be stored is limited to 20 seconds to 240 seconds if the capacity of the voice information is short, which is inconvenient to use when there is a lot of voice information to be stored. There is a problem in that the battery for supplying power to the recording apparatus needs to be replaced.

In another conventional technology, as shown in FIG. 1, in addition to the basic module jack to which the telephone main body 103 and the handset 100 are connected, the telephone receiver 110 includes a module telephone jack 110 and a telephone body. 103 is provided with a module jack 111, between the module telephone jack 110 and the module jack 111, an amplifier 118, a recording / playback device 119 and a power supply adapter 120 There is a connection.

The input channel 112 transmits the voice of the other party transmitted from the telephone body 103 to the amplifying unit 118 to the receiver speaker 101, and the input channel 114 transmits the voice of the other party and the handset 100. To amplify the user's voice to be input to the recording / playback device 119, the output channel 113 delivers the voice output from the transmitter microphone 102 to the amplifier 118, the output channel 115 is When playing the voice stored in the recording / playback device 119, the voice is output. The output channel 116 transmits the voice of the other party to the receiver speaker 101 through the telephone body 103, and output channel 117. Is a function of delivering the voice output from the amplifier 119 to the telephone main body 103.

By the way, the above system basically should be provided with a module telephone jack 110 and a module jack 111 in addition to the connection module connected between the telephone body 103 and the handset 100, the module telephone jack 110 Since there should be a recording / playback device 119 including a separate circuit between the module jack 111 and the high cost, it is psychologically and economically burdensome for the consumer, and the system is complicated to use for the general consumer. There is an uncomfortable problem.

The present invention has been proposed to solve the problems of the prior arts, and when the telephone user wants to record the contents of a call by replacing only the handset and the handset with a recording microphone with a recording microphone in the general telephone. An object of the present invention is to provide a device capable of simply recording.

Particularly, in the present invention, a noise removing circuit is added to record high-quality sound by removing side noise or surrounding noise that may occur during a telephone call, so that the electrical signal of the recording microphone and the electrical signal of the receiver speaker do not interfere with each other. Since it is recorded by an external recording device through a connection jack connected to, there is an advantage that can record the conversation voice in a stable state of high quality sound.

In addition, the present invention is equipped with a recording microphone in the handset, so that the conversation can be recorded by an external recording / playback device, so that the conversation user, a telephone user, can recognize that his or her telephone conversation is being recorded, It is an object of the present invention to prevent the use of an eavesdropping device that is used for illegal activities by recording the phone user secretly, so that it cannot be used as an illegal eavesdropping device that violates various laws related to personal information protection.

1 is a diagram illustrating a telephone system having a conventional recording function.

2 is a view showing a handset with a microphone for recording according to the present invention.

3 is a view showing a first embodiment of a handset, a handset, with a microphone for recording according to the present invention;

4 shows a circuit diagram of a first embodiment according to the present invention;

5 is a view showing a second embodiment of a handset, a handset with a microphone for recording according to the present invention;

6 shows a circuit diagram of a second embodiment according to the present invention;

※ Explanation of code about main part of drawing ※

10, 100: handset and receiver 11: connection port

12, 101: receiver speaker 13, 102: transmitter microphone

14: recording microphone 16: telephone connector

20: connection jack

30: induction and amplification circuit board 30a: induction circuit part

30b: amplification circuit section 30c: power supply section

40: resistance 41: capacitor

42: first line 43: second line

44: second guide line 45: fourth line

46: third line 47: first guide line

50: recording / playback device

103: telephone body 110: module telephone jack

111: module jack 112, 114: input channel

113, 115, 116, 117: output channel 118: amplifier

119: recording / playback unit 120: power supply adapter

To solve the above technical problem, the present invention relates to a handset and a receiver with a recording microphone,

More specifically, by using the recording microphone built in the handset of a general landline telephone, the user can easily record the call when he / she wants to record the contents of the call, and removes noise such as sidetone to achieve high quality sound. The present invention relates to a handset and a receiver, in which a recording microphone with a noise canceling circuit is added for recording.

The transmitter / receiver proposed in the present invention is connected to one side of the receiver and the receiver, and the connection port is connected to the recording microphone and the induction line, one side is connected to the connection port and the induction line, the other side is a recording microphone connected to the receiver speaker; It is connected to the connection port is composed of a connection jack for transmitting voice information to an external recording / playback device, and a guide line for electrical connection of each part.

In particular, the present invention is characterized in that it further comprises a noise removing circuit positioned between the recording microphone and the receiver speaker and the recording jack to stably record the transmission and reception conversation voice of the transmitter and the receiver.

The noise removing circuit includes a condenser for filtering only an AC signal from a voice information signal of a speaker's voice transmitted through a recording microphone so that an electrical signal of a recording microphone and an electrical signal of a receiver speaker are transmitted to a connection jack connected to a connection port without interfering with each other. It consists of a resistor that makes the electric signal of the micro current flowing through the microphone for recording from the speaker stable.

In addition, the noise canceling circuit includes an induction circuit section, an amplification circuit section, and a power supply section for supplying power thereto, and is connected and installed between a receiver speaker, a recording microphone, and a connection port, and the received sound transmitted to the receiver speaker. It may be composed of an induction / amplification circuit unit for inducing and amplifying the electrical signal supplied to the connection port.

The external recording / playback device may use any type of device as long as it includes a recording function.

When described in detail with reference to the accompanying drawings, preferred embodiments of the present invention configured and operated as described above are as follows.

FIG. 2 is a view showing a receiver and a receiver having a built-in recording microphone according to the present invention, wherein a connection jack 20 is coupled to one side of the receiver and receiver 10 inside a receiver and receiver of a telephone generally used. The connection port 11 connected to the recording microphone 14 and the induction line, and one side is connected to the connection port 11 and the induction line and the other side is connected to the receiver speaker 12 to record the telephone call content 14, a connecting jack 20 connected to the connection port 11 for transmitting voice information to an external recording / reproducing apparatus, between the recording microphone 14 and the receiver speaker 12, and a speaker speaker And a guide line for connecting the recording microphone 14 and the connection port 11 between the microphone 12 and the talker microphone 13.

Between the connection port 11 and the recording microphone 14 is connected by a guide line so that the connection jack 20 is connected to the connection port 11 so that the connection jack 20 and the recording microphone 14 are electrically connected. To transmit the electrical signal of the voice information input to the recording microphone 14 to the external recording / playback device 50.

The recording microphone 14 is configured to be located anywhere in the transceiver, using a high performance small microphone.

Reference numeral 16 denotes a telephone connector to which the telephone body and the handset are connected.

In addition, the connection port 11 is provided with a rubber stopper (not shown) when the connection jack 20 is coupled to remove the rubber stopper (not shown) fastened to the connection port 11, when the connection jack 20 is not coupled The rubber stopper (not shown) may be fastened to the connection port 11 to prevent foreign substances and the like from being introduced into the connection port 11.

FIG. 3 is a diagram showing a first embodiment of a handset and a receiver in which a recording microphone and a noise canceling circuit according to the present invention are incorporated, and FIG.

In the transmitter / receiver proposed in the present invention, an electric signal of the recording microphone 14 and an electric signal of the receiver speaker 12 are transmitted to the connection jack 20 connected to the connection port 11 without interference with each other. 14) and a condenser 41 for filtering only an AC signal from the dial tone input to the input tone, and a resistor 40 for stably making an electric signal of a fine current flowing from the receiver speaker 12 to the recording microphone 14. A receiver and a receiver incorporating a recording microphone, characterized by further comprising a noise canceling circuit.

In the above-described handset, the first guide line 47 is connected at one end to the first line 42 connected to the speaker 12 and the telephone connector 16 and the other end is connected to the recording microphone 14. And one end connected to the second line 43 connected to the receiver speaker 12 and the telephone connector 16 and the other end connected to the recording microphone 14 via the resistor 40 and the condenser 41. 2 guide lines 44 are provided.

In addition, a third line 46 is connected between the first induction line 47 and the connector 11, and a fourth line between the second induction line 44 and the connector between the resistor 40 and the condenser 41. Line 45 is connected.

Of the four wires connected to the telephone connector 16, the first wire 42 and the second wire 43 are connected to the receiver speaker 12, and the other two wires are connected to the transmitter microphone 13, and the receiver speaker ( The first wire 42 and the second wire 43 connected to 12 are connected to the recording microphone 14 by the first guide line 47 and the second guide line 44.

The voice of the telephone user using the transmitter / receiver 10 having the above-described configuration is input to the recording microphone 14 to be converted into a fine current, and then transmitted to the connection port 11 by a connected wire, and the receiver speaker 12 The other party's voice is heard by the first line 42 and the second line 43 connected from the telephone connector 16 to the receiver speaker 12 and transmitted to the recording microphone 14, respectively.

In this way, both the voice of the telephone user using the transmitter / receiver 10 and the voice of the counterpart heard through the receiver speaker 12 are transmitted to the external recording / reproducing apparatus in real time through a microcurrent.

The second lead wire 44 of the second guide wire 44 and the third wire 46 connected to the recording microphone 14 is a second wire 43 connected to the receiver speaker 12 and the telephone connector 16. ), The resistor 40 and the capacitor 41 are connected to each other, and the second induction line 44 is connected to the connection port 11 by the fourth line 45 so that a minute current flows.

The third wire 46 connected to the recording microphone 14 is connected to the first wire 42 by the second induction wire 44, and the third wire 46 is also connected to the connector 11. do.

The transmitter / receiver 10 having the above configuration applies the resistor 40 and the condenser 41 to filter only the AC signal using the condenser 41 to filter the audio signal input to the recording microphone 14. By using the resistor 40 to make the electric signal of the micro current flowing from the receiver speaker 12 to the recording microphone 14 to be stable, the electrical signal of the recording microphone 14 and the receiver speaker 12 The electrical signal is transmitted to the connection jack 20 connected to the connection port 11 without interfering with each other.

The resistance range is 1 kV to 100 kW, and the capacitor range is 10 kV to 500 kW.

FIG. 5 is a diagram showing a second embodiment of a transceiver, in which a recording microphone and a noise canceling circuit according to the present invention are incorporated, and FIG.

A connection port 11 installed at one side of the handset 10 and connected to an external recording / reproducing apparatus, and installed inside the handset 10, converts the voice of the user of the handset receiver into an electrical signal so that the connection port ( 11) The present invention consists of a recording microphone 14 to be supplied to the connection, the connection jack 20 for transmitting the electrical signal received from the connection port 11 to an external recording / playback device and a guide line for connecting each part In the handset and receiver proposed by

The present invention relates to a handset and a receiver with a recording microphone, characterized by further comprising a noise canceling circuit (30) for removing side tones and ambient noise generated during a telephone call.

The noise canceling circuit 30 is located between the recording microphone 14, the receiver speaker 12, and the connection port 11, and the induction circuit section 30a, the amplifying circuit section 30b, and a power supply to them. Consists of a power supply unit (30c) for supplying the electrical signal of the transmission sound transmitted from the telephone connector 16 to the transmitter microphone 13 and the reception sound transmitted to the receiver speaker 12, and then amplified the connection port ( 11).

The noise canceling circuit 30 including the induction / amplification circuit unit operating as described above has a received sound input from the receiver speaker 12 being input to the induction / amplification circuit unit to be guided to the induction circuit unit 30a, and then an amplification circuit unit ( 30b) is amplified and supplied to an external recording / playback apparatus through the connection port 11, so that the received sound of the speaker 12 is induced and amplified and recorded so that the conversation voice can be recorded in a clear and stable state of high quality. .

Therefore, since the conversation voices of the receiver and the receiver are transmitted and recorded appropriately, the recording can be performed in a stable state of high quality.

As described above, by replacing a handset and a handset commonly used in a general telephone with a handset with a built-in recording microphone proposed by the present invention, it is possible to simply record when a telephone user wants to record a call. There is an effect that can be efficiently used at a low price by providing a device.

In another aspect, the present invention further includes a noise removing circuit for appropriately controlling side tones or ambient noise that may occur during a telephone call, through an electrical jack of a recording microphone and an electrical signal of a receiver speaker connected to a connection port without interfering with each other. Since it is recorded by an external recording device, there is an advantage that can record a high quality stable voice.

In particular, in the present invention, since a recording microphone is mounted on the handset and a conversation is recorded by an external recording / playback apparatus, the telephone user can recognize that his / her telephone conversation is being recorded, so that a third party can not know the telephone user. There is an effect that can prevent the use as a tapping device that can be recorded and abused conversation contents.

Claims (5)

In the handset of a telephone, the connection port is connected to one side of the handset, the connection jack connected to an external recording / reproducing apparatus, and the one side for recording the telephone conversation inside the handset, the connection port And a recording microphone connected to a receiver speaker and the other side, a connection jack connected to the connection port for transmitting voice information to an external recording / playback device, and between the recording microphone and the receiver speaker inside a transceiver. And a guide line for connecting and electrically connecting between the recording microphone and the connection port. The transmitter and receiver according to claim 1, further comprising a recording microphone further comprising a noise removing circuit for appropriately controlling side tones and ambient noise. The condenser of claim 2, wherein the noise canceling circuit filters only an AC signal from the recording microphone input recording sound so that an electrical signal of a recording microphone and an electrical signal of a receiver speaker are transmitted to a connection jack connected to a connection port without interfering with each other. And a resistor for stably producing an electric signal of a microcurrent flowing from the receiver speaker to the recording microphone. 3. The noise canceling circuit of claim 2, wherein the noise removing circuit comprises: an induction circuit unit for inducing a reception sound input to a receiver speaker, an amplification circuit unit for amplifying a signal passing through the induction circuit unit, and a power supply unit supplying power to the circuit unit. A transmitter and receiver with a built-in recording microphone, characterized in that the configuration. The transmitter / receiver according to any one of claims 1 to 4, further comprising a rubber stopper for preventing foreign substances or the like from being introduced into the connection port.