KR890005721Y1 - Component system controller - Google Patents

Abstract

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Description

Controller of Component System

1 is a circuit diagram according to the present invention.

2 is a front and rear plate of the controller according to the present invention.

3 is a signal waveform at each part when the telephone is called.

4 is a signal waveform diagram according to a double tone multi-frequency.

5 is a flowchart according to the operation of the telephone answering device.

* Explanation of symbols for main parts of the drawings

1: one chip microcom 2, 4: keyboard

3: switching circuit 5: 7-segment light emitting diode decoder

6: call counter 7: secret code switch

8 relay 9 OP amplifier

10: band pass filter 11: high pass filter

12 low pass filter 13 digital frequency analysis circuit

14: output encoder 15: inverter

16 porter coupler 17 ringer circuit

18: tuner unit 19: TV

20: VTR 21: Turntable

22: Deck 23: Amplifier

24: speaker 25: telephone

26: telephone line 27: system selector

28: power switch 29: function selection switch

30: 2-way recording switch 31: Call counter light emitting diode

32: Output lead 33: Recording time selection switch

34: secret code switch 35: telephone connection terminal

36: signal line connection terminal 37: display circuit

38: remote control receiving circuit 39: detecting circuit

D ₂ , D ₃ : Rectifier D ₄ : Zener Diode

This design adds the telephone answering machine function and the volume control function of the component system to a component system consisting of a television, VTR, tuner, deck, audio, video system, and turntable, so that peripheral devices can be arbitrarily selected and controlled. Regarding the controller of a component system.

In general, the existing audio and video system that is commercialized is composed of a TV tuner and an AM / FM tuner. Therefore, an audio video receiver is more suitable than an audio / video system. In reality, however, it was not possible to simultaneously control a television, a VTR, a tuner, a tech, a turntable, and the like in configuring the audio and video system as a component, and also because the TV tuner and the amplifier part may overlap, it was not economical.

However, with the advent of the hi-fi era, when a user sets the volume of an audio or a video to watch, it is difficult to detect the incoming call by mixing the ringing sound and the volume when a call comes in. Even if you wanted to walk, you had to reduce the volume of the amplifier or turn off the component.

The present invention is designed to solve the above-mentioned shortcomings, and can be operated by controlling the TV, VTR, AM / FM tuner, and deck using a system selector, and when a call is received while watching music or TV and VTR, Winchip Under the control of the microcomputer, the output of the amplifier is adjusted so that the audio signal is turned off and the telephone ring signal can be sent to the speaker to detect the incoming call. (When the user wants to make a call while listening to music, turn off the amplifier or volume. The volume is automatically turned off when the handset is picked up without reducing the phone's handset, while the DTMF (Dual Tone Multi Frequence) remote control is also equipped with a built-in telephone answering device. There is a purpose.

Hereinafter, the configuration, operation, and effects of the present invention will be described in detail with reference to the accompanying drawings.

The present invention for achieving the above object is a tuner (18), a television (19), a VTR (using a one-chip microcomputer (1), a common control unit, a keyboard (2), and a switching circuit (3). 20), in the component system capable of controlling the turntable 21, the deck 22, and the amplifier 23, corresponding to a function selection switch 29 for selecting each function when performing an automatic answering function of a telephone. A call counter (6) indicating the number of incoming message (ICM) recordings according to the keyboard (4) of the telephone answering machine (4), the seven-segment light emitting diode decoder (5), and the output of the seven-segment light emitting diode decoder (5). The display circuit 37 is constituted by the phone, the display circuit 37 is constituted by the transistor 6 when the telephone is called, the transistor TRI is conducted when the telephone is called, the telephone line 26 through the line transformer (LT) And the deck 32 is connected to the relay (8) to drive the phone call state connected, Receives and amplifies DTMF signals input through line transformer (LT), capacitors (C1, C2), and resistors (R5, R6), converts them into digital signals, and confirms whether or not it is the same as a predetermined secret code. The remote control receiver circuit 38, which is applied to the one-chip microcomputer 1, and a signal is applied through a capacitor C3, a resistor R8, and a rectifier D3 when a telephone is called. 1) a photocoupler 16 operative to detect the ringer circuit, a ringer circuit 17 for generating a telephone ring signal such that the telephone ring signal is transmitted to the speaker 24 through the ring transformer RT, and a handset while watching TV. For example, the sensing circuit 39 for applying a high level signal and a low level signal to the one-chip microcomputer 1 through the inverter 15 so as to recognize a call state and recognize a call end state when the phone call ends, a secret code number. By preselecting Such as the PIN code switch 7 and the amplifier 23, the transistor (TR2, RT3) to control the output of the output and the telephone ring signals to be configured is connected to the one-chip microcomputer (1).

Unless indicated, 9 is an OP amplifier, 10 is a band pass filter, 12 is a high pass filter, 12 is a low pass filter, 13 is a digital frequency analysis circuit, 14 is an output encoder, 25 is a telephone, 27 is a system selector, 28 is a power supply. Switch, 29 is function selection switch, 30 is 2-way recording switch, 31 is call counter light emitting diode, 32 is output lead, 33 is recording time selection switch, 34 is secret code switch, 35 is telephone connection terminal, 36 is signal connection Indicates a terminal lamp.

FIG. 1 is an overall circuit diagram according to the present invention. The controller of the component system of the present invention can selectively operate functions such as a television receiver, a VTR, a deck, and a tuner. In addition to video systems, telephone answering machines and volume control have been added. 2 shows the front and rear plates of the controller. First, as shown in (2-1) of FIG. 2, the type control switches 27 to 30 and the call counter light emitting diodes 31 are installed. The rear panel includes a telephone connection terminal 35, an output lead 32, a secret code switch 34, a recording time selection switch 33, and a signal line as shown in (2-2) of FIG. The connecting terminal 36 is provided.

However, the control switches 27 to 30 provided on the front panel of the controller include a television set, a system selector 27 for selecting a VTR, a deck, a tuner, and turntables, a power switch 28, answering (ANS), It consists of a message, OGM (Outgoing message), and the function selection switch 29 to control the function of the telephone answering machine divided into ANSOFF, and a 2-way recording switch 30 to record the contents of the call during the call have. In addition, the call counter light emitting diode 31 of the front panel may display the number of the recorded telephone. Here, the function selection switch 29 belongs to the keyboard 4 of the telephone answering machine shown in FIG. 1, and the system selector 27 is the tuner 18 of the audio / video system and the television 19. , Belonging to keyboard 2 that selects VTR 20 and turntable 21.

Next, the overall operating state of the circuit shown in FIG. 1 will be described in detail with reference to FIGS.

First, in order to watch an audio / video system, select ANSOFF of the keyboard 4 corresponding to the function selection switch 29 shown in FIG. 2, and then select a desired switch among the keyboard 2 that is the system selector 27. Press to select one of the tuner 18, the television 19, the VTR 20, the turntable 21, and the deck 22, the selected information is transferred via the switch circuit 3 to the one-chip microcomputer 1, which is a common control unit. ), The one chip microcomputer 1 operates by sensing the selected information. At this time, the one-chip microcomputer 1 controls and controls the state by turning on the selected system power source according to the information.

That is, when an incoming call is made while watching the television 19 as an example of being turned on, the telephone ring signal is induced on the telephone line 26 in the (3-1) waveform of FIG. 3, from which the telephone ring signal is condenser. After DC coupling at C3 and voltage attenuation through resistor R8, this attenuated signal is rectified by rectifier D3 and condenser C4 as shown in (3-2) of FIG. Supplied to (16).

The rectified DC voltage is supplied to the ringer circuit 17 through the photocoupler 16. The zener diode D4 connected to the photo coupler 16 is used for the protection of the ringer circuit 17. Therefore, since the voltage shown in (3-2) of FIG. 3 is a voltage capable of sufficiently turning on the light emitting diode in the photocoupler 16, the photocoupler (by the voltage shown in (3-2) of FIG. By turning on the light emitting diode in 16, the light receiving transistor in the photocoupler 16 is turned on, and a low level signal as shown in (3-3) in FIG. 3 is supplied to the one-chip microcomputer 1 do. As a result, the one chip microcomputer 1 sends a low level signal such as (3-3) in FIG. 3 to the signal output terminal and applies it to the bases of the transistors TR2 and TR3, respectively.

From this, the transistors TR2 and TR3 are each turned off so that the output signal of the amplifier 23 is not transmitted to the speaker 24, while the output signal of the ringer circuit 17 (3-4) in FIG. The signal is supplied to the primary side of the ring transformer RT so that the signal induced to the secondary side of the ring transformer RT is supplied to the speaker 24. Therefore, the audio signal being watched is turned off and the ringing sound of the telephone is transmitted to the speaker 24.

At this time, when the person watching the television receiver picks up the receiver, the voltage of the telephone line 26 drops from 48V to 5V. At this time, the resistance R10 in the sensing circuit 39 is set to 1/9 of the resistance R9. Therefore, a voltage of about 0.5V (ie, a low level) is applied to both ends of the resistor R10. The output of the inverter 15 is changed to a high level signal according to the low level signal, and is supplied to the one chip microcomputer 1. do. The one-chip microcomputer 1 receiving such a high-level signal recognizes a call state of the telephone and supplies low-level signals to the bases of the transistors TR2 and TR3 so that the transistors TR2 and TR3 are turned off. Since the audio output of (23) is not transmitted during the telephone call period, the telephone call becomes easier.

After the telephone call is finished, the handset is released, so the voltage of the telephone line 26 is increased to 48V again, and this increased voltage is distributed by the resistors R9 and R10 in the sensing circuit 39 and 4.8V across the resistor R10. The output of the inverter 15 becomes low level due to the voltage applied to the one chip microchip microcomputer 1, and the one-chip is selectively checked by call party control (CPC) or voice activation (VOX). Applied to the microcomputer 1 it can be seen that the phone call state is over. Then, the one-chip microcomputer 1 recognizes the end-of-call state and supplies a high level signal to the bases of the transistors TR2 and TR3, respectively. From this, the transistors TR2 and TR3 are turned on and the audio of the amplifier 23 is turned on. The signal is transmitted through the speaker 24 so that audio can be heard.

Therefore, even if you pick up the handset to make a call while watching TV 19, the one chip microcomputer 1 detects the state of the telephone line 26 as described above. The one chip microcomputer 1 controls the transistors TR2 and TR3 to be turned off to cut off the audio output. As a result, you can turn off the volume automatically when you make a call, receive a call, or make a call without having to turn down the volume or turn off the power, and when the user puts down the handset, it returns to the original volume level to enjoy normal audio. It becomes the number.

On the other hand, when the operation state of the telephone answering device is described, the OGM of the keyboard 4 corresponding to the function selection switch 29 shown in FIG. 2 is selected, and as shown in the flowchart shown in FIG. Connect the microphone to the microphone terminal of the deck 22, press the record button and then record the contents to be delivered when you go out. Then, when the user selects the message switch of the keyboard 4 corresponding to the function selection switch 29 and presses the play switch of the deck 22, the recorded OGM is played through the speaker 24 (hereinafter referred to as ANS play). ). When the ANS switch of the keyboard (4) is selected to go out after the ANS playback is completed, the one chip microcomputer (1) cuts power consumption of all parts (18 to 23) except the controller power of the present invention. Minimize.

Then, when a call is received, the ring signal is applied to the photocoupler 16 through a capacitor C3, a resistor R8, and a rectifier D3 to apply power to the ring signal. One chip microcomputer (1) is detected as well. Accordingly, the one-chip microcomputer 1 supplies a high level signal to the base of the transistor TR1 to turn on the transistor TR1. As the relay 8 is energized, the switch contact is connected to the telephone line 26 and the deck ( 22 is connected via a line transformer LT. At the same time, the switching circuit 3 controlled by the one-chip microcomputer 1 transmits the recorded OGM to the telephone line 26 through the line transformer LT while turning on the power of the deck 22, and sends a message to the counterpart. Subsequently, when the OGM is finished sending, the one-chip microcomputer 1 detects the message of the other party on the tape of the deck 22 so as to control the recording (ICM recording). Meanwhile, the adjustment of the recording time is performed by the recording time selection switch 33 shown in FIG. 2, which can be selected in three ways: VOX, 60 seconds, and OFF. If you select VOX, you can record continuously for a preset time, e.g. for a few seconds until the voice signal from the other party is not applied. If you select 60 seconds, you can record for 60 seconds. If you select OFF, you can record at all. It becomes impossible.

Then, the call counter 6 displays the number of ICMs recorded while going out as the seven-segment light-emitting diode 31 shown in FIG. 2, where the display device 37 from the one-chip microcomputer 1 is displayed. When the 7 segment light emitting diode decoder 5 provides information, the decoder 5 decodes the information to drive the 7 segment light emitting diode 31 shown in FIG. 2 to display a corresponding number.

When you want to listen to the ICM recorded while you are away by phone, when you make a call to OGM and press the DTMF telephone button attached to the phone according to the password code specified in advance, Remote control is possible. Here, the designation of the secret code number is a contact point corresponding to the number of the secret code switch 34 among the four contacts of the secret code switch 7 in a state where the number of the secret code switch 34 shown in FIG. When the switch is connected to the B power supply, the resistor and the contact are connected to the ground terminal, so a low level signal is applied to the one chip microcomputer 1 so that the secret code number can be selected in advance.

That is, when the above operation is described in detail, when the DTMF button of the telephone is pressed during OGM broadcasting, the signal is applied to the primary side of the line transformer LT through the telephone line 26, and from this, (4-1) in FIG. The signal is induced to the secondary side of the line transformer (LT) so that the positive and negative terminals of the OP amplifier 9 in the remote control receiver circuit 38 through the capacitors C1 and C2 and the resistors R5 and R6. Is applied to each. The magnitude of the amplification degree of the output signal of the OP amplifier 9 is easily determined by the ratio of the resistor R6 and the resistor R7. Subsequently, when the band pass filter 10 removes noise and audio signals other than the DTMF signal, a signal as shown in (4-2) of FIG. 4 is obtained. The filtered signal is then separated into high and low frequency signals through the high pass filter 11 and the low pass filter 12, respectively, so that the outputs of the high and low pass filters 11 and 12 are respectively shown in FIG. 4-3) and (4-4). That is, the signal separated by the high and low frequencies is converted into a digital signal and applied to the one chip microcomputer 1, and the number detected by the digital signal is sensed by the one chip microcomputer 1 so as to be equal to a predetermined secret code. After checking whether the code number is correct, the remote control is controlled.

Such a remote control operation is referred to as a non-peripheral remote control or DTMF remote control, the conventional telephone automatic answering device is a beeper method must carry a remote control device, DTMF remote control method according to the present invention DTMF remote control method without having to carry a remote control device Remote control is available from any phone in the area where it is available, and it is also reliable.

Meanwhile, the two-way recording switch 30 shown in FIG. 2 is a part of the keyboard 4 of the telephone answering machine. When the switch is pressed during a telephone call, the call content is recorded on the deck 22. After completion, recording is stopped and the function selection switch 29 is selected as the message position and the playback switch of the deck 2 is pressed to play.

As described above, according to the controller of the component system of the present invention, when a call is received while watching an audio / video system, the one-chip microcomputer detects the ring signal of the phone and automatically turns off the volume being listened to and outputs a ring tone through the speaker. For example, even if you turn up the volume and watch an audio / video system, you can easily detect the incoming call. Also, if you pick up the handset to make a call when watching an audio / video system, One-chip Microcomputer detects the voltage condition of the telephone line and automatically turns off the volume, reducing the volume or turning off the power while watching the audio / video system. There is no inconvenience, and even if the handset is put down, the voltage of the telephone line is detected again, and the volume is returned to the original state. In addition, as a function of the telephone answering device, the telephone answering machine using the remote control device, which is cost-effective and inconvenient to carry and risks of alteration, can be utilized by making full use of the existing set without adding a new deck mechanism or an amplifier. Instead of using a remote control device instead of the device has the effect of having the maximum function by configuring a telephone answering machine using a reliable DTMF remote control method.

Claims (1)

The tuner 18, the TV 19, the VTR 20, the turntable 21, the tech using the one-chip microcomputer 1 which is a common control unit, the keyboard 2 which is an audio / video control part, and the switching circuit 3 are used. In the component system capable of controlling the 22 and the amplifier 23, the telephone answering device of the telephone answering device corresponding to the function selection switch 29 for selecting each function when the telephone answering function is performed. ), A display circuit (37) consisting of a 7-segment light-emitting diode decoder (5) and a call counter (6) displaying the number of ICM recordings according to the output of the 7-segment light-emitting diode decoder (5) In this case, the transistor TRI is turned on so that the telephone line 26 and the deck 22 are connected to each other through the line transformer LT, and the relay 8 drives the telephone call state to be connected. The line transformer LT and the capacitor C1 are connected to each other. , Digitally receive and amplify DTME signals input through resistors R5 and R6 The remote control receiver circuit 38, which is applied to the one-chip microcomputer 1 so as to confirm whether it is identical to a predetermined secret code by converting it to a call, and when a telephone call is made, a capacitor C3, a resistor R8, and a rectifier D3. Photocoupler 16, which operates to detect a state that a call is received and the call is received through the photocoupler 16, and the telephone ring signal is transmitted to the speaker 24 through the ring transformer (RT). The ringer circuit 17 for generating a ring signal and the receiver receive the high level signal and the low level signal through the inverter 15 so as to recognize a call state and recognize a call end state when the telephone call ends. (1) a sensing circuit 39 applied to (1), a secret code switch 7 in which a secret code number can be selected in advance, and a transistor TR2 for controlling the output of the amplifier 23 and the output of the telephone ring signal; RT3) Component system and other controllers intended for use.