KR910006059B1 - Audio recorder driving circuit in remote control - Google Patents

Abstract

The circuit records the message provided from the telephoen by transmitting the audio drive signal through the power line. The circuit uses an interface circuit placed between a home bus controller and an audio main controller to make the communication smooth. The analogy signal of the power line is provided to an A/D converter (11) through a coupling transformer (CT2) and a resistor (R3). The converted a microprocessor (12) applies the power to the cassette recorder according to the converted digital signal. After the tape is driven, the massage provided from the converter started to record.

Description

Audio recorder driving circuit of telephone remote controller

1 is a circuit diagram of the present invention.

2 is a flow chart of the present invention.

* Explanation of symbols for main parts of the drawings

1: Home Bus Controller Circuit

2: operation switch driving circuit 3: voice synthesis transmitter

4: dual tone multi-frequency circuit 5: voice detector

6, 12: microprocessor 7: inverter circuit

8: D / A (Digital / analog) Conversion Circuit

9: Power Line Interface Circuit

10: audio set interface circuit

11: A / D (analog / Digital) conversion circuit 13: Audio main controller

14: cassette recorder SW: operation switch

TS: Trans CT ₁ , CT ₂ : Combined transformer

BD: Bridge Rectifier Circuit R _1- R ₃ : Resistance

C ₁ -C ₃ : Capacitor RL: Relay

PHC: Photo Coupler

The present invention relates to a device capable of recording the contents of a telephone by operating an audio cassette recorder in a home using a telephone from the outside by using a home bus controller method. An apparatus is provided for transmitting a driving signal.

In general, in an apparatus for recording telephone contents controlled by an external telephone, a separate cassette recorder is connected to a telephone control unit and each line is separately configured, so that data transmission and reception cannot be performed smoothly, and a separate cassette recorder can be purchased. It was not desirable in terms of economics.

The present invention is connected to an existing audio set without a separate cassette recorder in order to eliminate the above-mentioned closures to transmit the signal to the power line while at the same time can tell the family to deliver the information to the family when going out It is an object of the present invention to enable faster and more accurate operation by using an interface circuit between a home bus controller circuit and an audio main controller in order to facilitate this.

Hereinafter, described in detail by the accompanying drawings as follows.

As shown in FIG. 1, the photocoupler PHC is connected to the primary side of the transformer TS to which the telephone control signal is applied through the bridge refinery circuit BD, and the output is passed through the inverter circuit 7 to the microprocessor 6. And the voice synthesis transmitter 3, the dual tone multi-frequency circuit 4 and the voice detector 5, respectively, via the operation switch SW on the secondary side of the transformer TS. In addition, a dual bus multi-frequency circuit (4), a voice synthesis transmitter (3), an operation switch driving circuit (2), and a voice bus (5) are connected to a home bus controller circuit (1). (8) A power line interface circuit of a telephone controller in which a resistor (R2) and a capacitor (C ₃ ) are connected in parallel and connected to a secondary side of a coupling transformer (CT ₁ ), and a capacitor (C ₂ ) is connected to a primary side. ) To the output of the microprocessor (6) of the home bus controller circuit (1). The audio set interface circuit 10 which connects the A / D conversion circuit 11 to the secondary side of the coupling transformer CT ₂ through a resistor R ₃ and the output of the circuit to the microprocessor 12. ) Is connected to the primary side of the coupling transformer (CT ₁ ) of the power line interface circuit 9 of the telephone remote controller to connect the output of the audio set interface circuit 10 to a conventional audio main controller 13 while A / The cassette recorder 14 is connected to the D conversion circuit 11.

Referring to the operation and effects of the present invention made of the above configuration is as follows.

When you go out, you can set the button so that it can be recorded on the cassette recorder of the audio set. Then, when you make a phone call to record the situation to be delivered to your family from outside, a signal is generated on the primary side of the transformer (TS). As the signal rectified through the rectifier circuit BD operates the photocoupler PHC, the signal is applied to the inverter circuit 7 more smoothly, and the inverter circuit 7 converts the state twice to provide a stable output. Is obtained and then entered into the microprocessor 6.

At this time, in order to operate the operation switch SW connected to the secondary side of the transformer TS, the microprocessor 6 outputs a signal to the operation switch driving circuit 2.

That is, when a signal is applied to the base of the transistor Q through the resistor R ₁ , the transistor Q is turned on and the relay RL is operated so that the operation switch SW is connected to the ON state. In the speech synthesis transmitter 3, the preparation is completed, and the sound of the password is transmitted.

Therefore, when the user transmits the password of the system, it is induced on the secondary side of the transformer (TS) and applied to the dual tone multi-frequency circuit (4) via the movable switch (SW). By resending the voice number “Dash the code number of the device to be controlled” to the voice synthesis transmitter 3, the user transmits the code number of the audio set.

In addition, the multi-frequency circuit 4 receives the code number of the audio set transmitted from the telephone and outputs the data to the microprocessor 6. The microprocessor 6 receives the data signal to receive the power line interface of the telephone controller. It is output to the D / A conversion circuit 8 of the circuit 9 at which time the exchange of transmit and receive data signals with the microprocessor 6 takes place.

Therefore, the D / A conversion circuit 8 converts the analog signal to transmit the digital signal applied from the microprocessor 6 through the power line, and then passes through the resistor R ₂ and the coupling transformer CT ₁ to set the audio. Is applied to the interface circuit 10.

The analog signal loaded through the power line is input to the A / D conversion circuit 11 through the coupling trace CT ₂ and the resistor R ₃ to drive the audio set by the microprocessor 12. The proper signal, that is, analog signal, is converted into a digital signal. Therefore, the microprocessor 12 operates the audio main controller 13 to supply the main power and the cassette recorder so that the tape is rotated. The signal output from (11), that is, the telephone content starts to be recorded.

Meanwhile, the voice detector 5 continuously detects the voice transmitted from the telephone and stops the operation of the home bus controller circuit 1 when the call termination signal is detected.

Referring to the flowchart of the present invention shown in FIG. 2, when a telephone is made to operate a cassette recorder of an audio set, the operation of the system is started (step 201). The marencro processor 6 of the home bus controller circuit 1 is started. After 3 times of input current detection beeps are detected (step 202), when the system is ready for operation, the message is ready. The controller sends out the password three times after confirming the transmission contents with the receiver (step 204).

At this time, after confirming the password of the system itself and the password input from the outside three times by the microprocessor 6 (step 204), if neither of them matches, the operation of the home bus controller circuit 1 is stopped (step 205).

On the other hand, if the passwords match, when the control unit is operated by the microprocessor 6 (step 206), the controller sends the code number of the audio set (step 207) and is sent to the power line (step 208).

At this time, the home bus controller circuit 1 analyzes the code number command (step 209), and if the number of the corresponding control device matches, the signal is applied to the audio main controller 13 to supply the audio main power to the cassette recorder. At the same time as the power is supplied (step 210), the recorder is played and the recording starts with the words " Ready to record. &Quot;

In addition, the voice detector 5 detects the voice transmitted from the telephone (step 212), and when the call termination signal is detected, the operation of the home bus controller 1 is stopped to cut off the main power supply of the audio set and the cassette recorder. 214) If not detected, play of the tape continues and recording proceeds (step 213).

As described above, in the present invention, when a cassette tape recorder is to be controlled using a home bus controller method, the present invention can be connected to an existing audio set without a separate cassette, and can be connected to a power line. The interface circuit is used for smooth data transmission to the power line, so high effects can be expected in the more accurate control and speed of response.

Claims (1)

The photocoupler (PHC) is connected to the primary side of the transformer (TS) to which the telephone control signal is applied through the bridge rectifying circuit (BD), and the output is input to the microprocessor (6) via the inverter circuit (7). On the secondary side of the TS, the voice synthesis transmitter 3, the dual tone multi-frequency circuit 4 and the voice detector 5 are connected to each other via an operation switch SW, and the microprocessor 6 is connected to the dual tone multi-frequency circuit. (4), the voice synthesis transmitter (3), the operation switch driving circuit (2), and the voice detector (5) are connected to form a home bus controller circuit (1), while the D / A conversion circuit (8) includes a resistor (R). ₂ ) and the condenser (C ₃ ) in parallel, connected to the secondary side of the coupling transformer (CT ₁ ), and the power line interface circuit (9) of the telephone remote controller connected to the condenser (C ₂ ) on the primary side of the hop bus Connected to the output of the microprocessor 6 of the controller circuit 1 The audio set interface circuit 10 is connected to the secondary side of the coupling transformer CT ₂ through the resistor R ₃ , and the output of the circuit is connected to the microprocessor 12. The output of the audio set interface circuit 10 is connected to the conventional audio main controller 13 while being connected to the primary side of the coupling transformer CT ₁ of the power line interface circuit 9 of the controller. 11) An audio recorder driving circuit for a telephone remote control device, characterized by connecting a cassette recorder (14) to the telephone remote control device.

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