KR200421369Y1 - Telephone having change device - Google Patents

Abstract

The present invention can be used to receive a call to the office if the current telephone in use is returned to another place. However, at the present time, it is impossible to change the phone number received from other places because the phone number can only be entered from the phone. Therefore, it is a device that installs memory inside the phone and sets a password so that when the password is correct, the incoming number can be remembered and the incoming phone number can be changed from the outside.

Description

Telephone having switcher {TELEPHONE HAVING CHANGE DEVICE}

1 is a block diagram showing the general configuration of the utility model.

2 is a circuit diagram of a telephone receiver.

3 is a device for sending the received date back to the telephone company and the call request

<Explanation of symbols for main parts of drawing>

10: general telephone

11: photo coupler

12: voice trans

20: dial decoder

30: Cds (Oil Card Hate)

40: amplification unit

50: Clock

60: microprocessor

70: dial encoder

80: memory for audio output

90: key

100: barista

110: coupling capacitor

120: voltage drop resistor

130: Zener Diode

140: Zener Diode

150: photocoupler

160: load resistance

200: coupling capacitor

210: coupling capacitor

220: transformer

230: RF BY-PASS CONDENSER

240: Zener diode

250: Zener diode

260: coupling capacitor

270: partial pressure resistance

280: partial pressure resistance

290 transistor

The present invention is a telephone call conversion device, which generally causes a great inconvenience when a call is received or when a call is canceled, the call must be received from the phone and the call is canceled. This is because there is a hassle of having to answer and release from the phone. So, leave the memory assistant to make a call from outside to change or cancel the call.

Figure 1 shows the overall configuration by attaching the photo coupler 11 to the general telephone 10 to detect a ringing signal ringing the phone to receive a call for the purpose of the general telephone call ring 20 times When detected, the photocoupler detects the received signal and sends it to the central processing unit. The central processing unit counts the number coming from the photocoupler and if more than 20 times, the relay 12 is connected to receive the call and transmits a dial tone indicating that the call is received to the other party through the voice transformer 13.

Here, when the input password comes from the dial decoder, it is compared with the password previously input from the central processing unit. If the password matches, the next operation is entered.

Cds 30 amplifies the change in the amplifier 40 according to the selection of the key 90 when it is desired to choose whether or not to receive the call according to the brightness of the light, and then the input of the microprocessor is selected by the program and the time When you want to select according to the key 90, you can use it to change the destination automatically according to the time of selection.The dial encoder 20 can receive 12 key signals from 1 to #. The encoder 70 is used to call the telephone company to change the dial number again. The voice memory 80 inputs the changed number and the necessary message in advance and sends it when necessary.

In detail, FIG. 2 is a circuit for automatically counting and receiving a signal when a telephone ringing. V1 is a barista 100 that is a circuit for preventing lightning from entering along a telephone line, and C1 (110) when a signal is input to both TEL telephone lines. After passing through the coupling capacitor), a voltage drop occurs at R1 (120), and the internal diode of PH1 (150: photocoupler) is turned on to transmit a signal to the secondary side, and ZD1 (130) and ZD2 (140) are zener diodes. Since the voltage of R2 (160) is large when the signal comes in on the secondary side of PH1 (150: photocoupler), the central processing unit has several signals because the voltage of terminal 3 of the photocoupler is lowered. You can see if you're in.

FIG. 3 shows the incoming phone number memorized in FIG. 2, the cancel call, and selects the dial again to change the call destination or to cancel the called number. Input coupling capacitors C1 (200) and C2 (210) voice transformer T1 ( 220) and C3 RF BYPASS CONDENSER (230: high frequency bypass capacitor) to remove noise and maintain constant voltage at zener diodes ZD1 (240) and ZD2 (250), then C4 (260), R1 (270), R2 ( 280) to the dial decoder.

The signal applied to the dial decoder is stored by the microcomputer in the internal ROM of the central processing unit after distinguishing the password and the telephone number. After a certain period of time, the microcomputer dials through the dial encoder and the frequency is supplied to the base of TR1 (290) to output the phone number of the internal ROM (ROM) to change the destination or cancel the destination change. To do this.

As described above, it is impossible to change the destination of the phone as long as it is not the phone.However, if the above circuit is placed inside the phone, the destination can be changed and canceled at any time and any place regardless of the location and time. The destination can be changed and canceled.

In order to achieve the above object, the present invention includes a photocoupler 11 capable of detecting a telephone ring signal in a telephone, and when a signal rings, an internal light emitting diode operates to transmit a signal to a photo transistor and receive a telephone call. (12) allows the central processing unit to receive a call through the relay (12) and transmits a signal that the call has been received by the voice transformer (13) so that the user can enter a password. The microprocessor sends a signal indicating that the input signal is received from the dial decoder 20 and the output signal from the dial encoder 70 is sent to the telephone.

Cds (30) is a device whose resistance value varies depending on the brightness of the light. When Cds (30) is used, the amplifier 40 senses the state of the light when it wants to operate according to the light. . The clock 50 signal is used when you want to change the receiving device according to the time. The incoming time and canceling time are input in advance, and the destination is automatically moved and canceled according to the time. The voice memory can confirm the correct operation by sending a voice message when the operation is finished.

According to the present invention, the destination switching device can remotely execute an operation to be performed directly to the office, thereby efficiently using the work and saving a lot of money.

Claims (4)

A dial decoder that can detect the incoming signal to the telephone for the purpose of changing or removing incoming calls on the telephone; A microprocessor control unit which can be moved according to the program; Dial encoders for dial input; Cds control device for determining whether to operate according to light; And a clock control device capable of operating according to time; A memory capable of conveying the result of destination call to voice or beat tone; Call forwarding device The apparatus of claim 1, further comprising: an incoming call change device for outputting voice in accordance with a tone signal of the dial decoder and a signal of the dial encoder; The apparatus of claim 1, further comprising: a call change device configured to detect and then amplify the light using the Cds and the Photo Tr capable of detecting the light to use an input signal of a microprocessor as a control signal; The apparatus of claim 1, further comprising: an incoming call change device configured to determine an incoming time or canceling call time by using the clock as an input signal of a microprocessor;

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