KR0129832B1 - Two line wire/wireless telephone - Google Patents

Abstract

Disclosed is a two line wired/wireless complex telephone and a method thereof. The telephone comprises a power source separator(10), a wired phone circuit(20), a wireless phone circuit(30), a ring signal processor(40), a central processing unit(50), an EEPROM(60), an adapter(80) and an antenna(90). The power source separator(10) separates and supplies a wired telephone and a wireless telephone. The wired phone circuit(20) has the first station line for the wired telephone. The wireless phone circuit(30) has the second station line for the wireless telephone. Thereby, the complex telephone is able to function as two telephones for efficient installation.

Description

Two-Line Wired / Wireless Composite Phones and Their Methods

1 is a circuit diagram for the present invention.

* Explanation of symbols for main parts of the drawings

10: power separation unit 11: the first bridge

12: second bridge 20: wired telephone circuit

21: landline telephone handset 22: keypad

23: first relay switch 30: wireless call circuit unit

31: second relay switch 32: third relay switch

33: hybrid transformer 40: ring signal processing unit

41: first ringer IC 42: second ringer IC

43: trance 44: speaker

50: central processing unit 60: E2P ROM

70: high frequency modulation / demodulation unit 80: adapter

90 antenna

The present invention by connecting two trunk lines to the wired / wireless combined telephone as a two-line wired / wireless combined telephone and a method for the method to act as two ordinary telephones (or key phones) as a single wired / wireless combined telephone. The present invention relates to a two-line wired / wireless combined telephone and a method for making a call with another subscriber by occupying two trunk lines at the same time using a wired / wireless telephone.

In general, telephones currently in use are designed to allow one phone call per call. This is not inconvenient to use in a normal home, but was inconvenient to use in small and medium and large enterprises.

In other words, if a number of CO lines were connected, the number of telephones increased so that it was impossible for the person who received the call to connect to each department to sit in one place and answer the call.

Therefore, in order to eliminate the above inconveniences in the prior art by designing a key phone system is still being used in many offices.

This is to connect a plurality of trunk lines in the main device of the key phone, and to connect a number of ordinary phones and key phones to the key phone to control all the trunk lines and extensions in the office. Therefore, if a caller receives a call using a keyphone that is connected to all CO lines and extensions, the call can be answered in one place without traveling.

However, the keyphone system is expensive to install, so many offices use regular telephones.

In addition, if you look at the existing two-line telephone, for example, if you installed a two-line telephone in an office with two CO lines, and you receive a call, if you receive a call while using a CO line, If you want to use the phone, you have to wait and call if you want to use the phone. That is, it is not possible to use two trunk lines at the same time, and for this purpose, there is a problem in that the cost is added because one more line-line telephone must be installed and used.

Therefore, the present invention is to solve the above-mentioned problems of the present invention by giving two trunk lines to the wired / wireless composite telephone currently in use to occupy two trunk lines with a single wired / wireless telephone at the same time to enable a call; It is characterized by providing a method.

That is, in a wired / wireless combined telephone, the first bridge 11 and the second bridge 12 which receive power (DC 48V) input from a telephone company, respectively, separate and supply the power of wired and wireless telephones. A power separator 10; A wired call circuit unit 20 forming a first main line, which is a call line of a wired telephone; A wireless call circuit unit 30 forming a second main line which is a call line of the wireless telephone; A ring signal processor 40 for processing a ring signal input from a telephone station; A central processing unit (50) for controlling each unit by processing the signal output from each unit and the signal input through the antenna; E2P ROM 60 for storing a telephone number and a password; A device composed of an antenna 90 is used. In a wired / wireless composite telephone, two trunk lines are connected to one wired / wireless composite telephone, and the wired / wireless composite telephone is connected to the inside of the main body of the landline telephone. It is equipped with a device for separating voltage and switching devices for each trunk line so that a single wired / wireless combined telephone can occupy two trunk lines at the same time.

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

1 is a circuit diagram of the present invention, which consists of a first bridge 11 and a second bridge 12 respectively receiving power (DC 48V) input from a telephone station to separate and supply power of a wired and a wireless telephone. A power separator 10; A wired call circuit unit 20 forming a first main line, which is a call line of a wired telephone; A wireless call circuit unit 30 forming a second main line which is a call line of the wireless telephone; A ring signal processor 40 for processing a ring signal input from a telephone station; A central processing unit (50) for controlling each unit by processing the signal output from each unit and the signal input through the antenna; An E2P ROM 60 for storing a telephone number and a password; A high frequency modulation / demodulation unit 70 for modulating / demodulating a signal transmitted / received through the antenna 90; An adapter 80 for supplying power to each power stage; The antenna 90 is configured to transmit / receive various signals.

The wired telephone circuit unit 20 includes a second IC U2 driven according to the operation of the hook switch SW1; Transistors Q2 and Q1 that are turned on by the operation of the second IC U2 to supply power to the first IC U1; power is supplied to the transmitter / receiver 21 and data of the landline telephone. A first IC (U1) for transmitting and receiving, a keypad 22 for transmitting a telephone number to the second IC (U2) according to a user's operation when a telephone circuit of a wired telephone is connected; and an output from the central processing unit (60) A transistor (Q3) for driving the first relay switch (23) to selectively switch the first main line and the second main line in accordance with a signal, and switching the first bridge (11) and the second bridge (12), respectively, A first relay switch 23 for allowing a telephone to select and occupy each trunk line; and a wired telephone receiver / receiver 21, wherein the wireless call circuit unit 30 is a call output from the central processing unit 50; A transistor Q5 driven according to a start signal, and driven according to an operation of the transistor Q5 A third relay switch 32 to occupy the line communication circuit, and a second relay switch 31 to selectively switch the first trunk line and the second trunk line according to a signal output from the central processing unit 60; A transistor (Q4), a second relay switch (31) connected to the first trunk line and the second trunk line so as to select and occupy two trunk lines by using a wireless telephone to selectively occupy and use the two trunk lines; According to the present invention, each of the trunk lines is separated and the hybrid transformer 33 adjusts the impedance level when transmitting / receiving data using a wireless telephone. The ring signal processor 40 includes a tip and a ring of the first trunk line. a first ringer IC 41 connected to a ring and outputting a ring signal output from the first trunk line to the transformer 43 and the central processing unit 60; a tip and a ring of the second trunk line; ) To receive the ring signal output from the second trunk line Transformer 43 and for driving the speaker 44; consists of a speaker 44 for outputting a ring signal in accordance with the signal output from the transformer (43).

Referring to the operation of the present invention configured as described above are as follows.

When the telephone line is connected to the first main line and the second main line, DC 48V voltage is applied from the telephone station, and the input voltage is transmitted by the first and second bridges 11 and 12 of the power separation unit 10. And are input to the cordless phone respectively.

The voltage of the first trunk line is applied to the second IC U2 through the first relay switch 23 and the resistor connected thereto via the first bridge 11. Fine current is supplied.

At this time, when the user lifts the handset / receiver 21 of the wired telephone, the hook switch SW1 is turned on to drive the second IC U2 and the transistors Q2 and Q1, thereby driving the first IC U1. ) Is supplied with a power line, and the telephone line circuit of the first trunk line is formed, and the user checks the dial tone input from the telephone station and dials using the keypad 22.

The voltage of the second trunk line is supplied to the hybrid transformer 33 through the second relay switch 31 via the second bridge 12, and from the cordless phone when a call is to be made using the cordless phone (portable device). The fired signal, that is, the call initiation signal, is input to the high frequency modulation / demodulation unit 70 through the antenna 90, and the high frequency modulation / demodulation unit 70 receiving the signal demodulates the signal to the central processing unit 50. Enter

The signal input to the central processing unit 50 is compared with the call initiation signal embedded in the E2P ROM 60, and if the result is the same, it is output to the transistor Q5 to turn on the transistor Q5. When the transistor Q5 is turned on, the third relay switch 32 connected thereto is driven to form a radiotelephone call circuit.

That is, the wired / wireless telephones in which the voltages are separated in this way are separated from the voltage input to each telephone and occupy two trunk lines, so that one phone / wireless telephone can make a call at the same time.

In addition, when a call comes in, the ring signal is processed as follows.

When the ring signal output from the first trunk line is input to the first ringer IC 41, the ring signal is simultaneously input to the transformer 43 and the central processing unit 50 from the first ringer IC 41. The signal input in this way is ringed through the speaker 44 of the wired telephone via the transformer 43, and the signal input to the central processing unit 50 receives the ring signal stored in the E2P ROM 60. To the TX data terminal to output to the high frequency modulation / demodulation section 70. The high frequency modulation / demodulation unit 70 which receives the signal demodulates the signal and transmits the signal to the wireless telephone through the antenna 90, so that the wireless telephone also rings a bell.

The ring signal output from the second trunk line is also processed in the same way as the ring signal output from the first trunk line.

The ring signal processed in this manner rings at the same time on both the landline and cordless telephones, and the user can make a call using the handset of any of the two wired / wireless telephones. In other words, this ring signal processing is the same function as answering a call using a keyphone having both a trunk line and an extension.

In addition, the first and second relay switches 12 and 31 and a detailed operation description of the present invention will be described with reference to the trunk line number as follows.

(Example: Assume that the telephone number of the first national line is '568-3274' and the telephone number of the second national line is '568-3725')

Assuming that the call is '568-3724 (First Line)', the phone rings at the same time on the wired / wireless phone, and the user can make a call by selecting either of the wired and wireless phones. First of all, when you make a call using a landline phone, it is basically connected to the landline phone so that you can answer the call without any circuit work. When lifting, the central processing unit 50 outputs a signal for driving the transistor Q4. When the signal is output, the transistor Q4 operates in response to the signal, whereby the first relay switch 23 is connected to the first main line. In this way, basically, a wireless telephone occupying the second national line can receive a call received on the first national line.

On the contrary, even if the call has been made to '568-3725 (Second Line)', the same operation as above can be used to receive a call made to a cordless phone line using a landline telephone. At this time, the operating transistor is Q3, and the second relay switch 31 is connected to the first trunk line by the transistor Q3.

Of course, the subscriber does not know which trunk line the call came from because the ring rings at the same time on both wired and wireless telephones.

In addition, the adapter 80 mounted on the main body of the wired telephone supplies power to the central processing unit 50, the high frequency modulation / demodulation unit 70, and other power input terminals (vcc1, vcc2) and charges the wireless telephone. Used.

As described above, the present invention can simultaneously occupy two trunk lines using one wired / wireless telephone, and can use a telephone signal in a small office because a signal input through one trunk line can be made by any telephone.

As described in detail above, the present invention can connect two trunk lines using a single wired / wireless phone, and then use two trunk lines at the same time. In addition, 4 to 6 more lines can be added, so it can be applied to small offices or private exchanges that have less capacity to use a key phone. This reduces the cost of purchasing and installing a phone when installing a key phone or expanding a CO line. It has an economic effect.

Claims (8)

In the wired / wireless combined telephone, the power supply which separates and supplies the power of the wired and wireless telephones, which is composed of the first bridge 11 and the second bridge 12 respectively receiving power (DC 48V) input from the telephone company. Section 10; A wired call circuit unit 20 forming a first main line, which is a call line of a wired telephone; A wireless call circuit unit 30 forming a second main line which is a call line of the wireless telephone; A ring signal processor 40 for processing a ring signal input from a telephone station; A central processing unit (50) for controlling each unit by processing the signal output from each unit and the signal input through the antenna; An E2P ROM 60 for storing a telephone number and a password; A high frequency modulation / demodulation unit 70 for modulating / demodulating a signal transmitted / received through the antenna 90; An adapter 80 for supplying power to each power stage; Two-line wired / wireless composite telephone, characterized in that composed of an antenna (90) for transmitting and receiving various signals. The wired communication circuit unit 20 further comprises: a second IC (U2) driven according to the operation of the hook switch (SW1); Transistors Q2 and Q1 that are turned on by the operation of the second IC U2 to supply power to the first IC U1; A first IC U1 receiving power and exchanging data with the handset 21 of the wired telephone; A key pad 22 for transmitting a telephone number to the second IC U2 according to a user's operation when the telephone circuit of the wired telephone is connected; A transistor (Q3) for driving the first relay switch (23) to selectively switch the first main line and the second main line in accordance with a signal output from the central processing unit (60); A first relay switch 23 for switching each of the first bridge 11 and the second bridge 12 so as to selectively occupy each trunk line with a landline telephone; Two-line wired / wireless combined telephone, characterized in that consisting of a landline telephone receiver / handset (21). The wireless communication circuit of claim 1, further comprising: a transistor (Q5) driven according to a call initiation signal output from the central processing unit (50); A third relay switch 32 driven by the operation of the transistor Q5 to occupy a wireless communication circuit; A transistor Q4 for driving the second relay switch 31 according to a signal output from the central processing unit 60 to selectively switch the first main line and the second main line; A second relay switch 31 connected to the first trunk line and the second trunk line so as to selectively occupy two trunk lines by using a wireless telephone by selectively switching each trunk line; 2. A two-line wired / wireless combined telephone, comprising: a hybrid transformer 33 that separates each trunk line according to a power input from a telephone station, and adjusts an impedance level when transmitting / receiving data using a wireless telephone. The ring signal processor 40 of claim 1, wherein the ring signal processor 40 is connected to a tip and a ring of the first trunk line and transmits a ring signal output from the first trunk line to the transformer 43 and the central processing unit 60. A first ringer IC 41 to be outputted to the first ringer IC; A second ringer IC 42 connected to a tip and a ring of the second trunk line and outputting a ring signal output from the second trunk line to the transformer 43 and the central processing unit 60; Two-line wired / wireless combined telephone, characterized in that consisting of a speaker 44 receives the signal output from each of the ringer IC (41, 42). In the wired / wireless combined telephone, a device for separating the voltage applied to the wired / wireless composite telephone inside the main body of the wired telephone by connecting two trunk lines to a single wired / wireless composite telephone and a device for switching each trunk line Two-line wired / wireless combined telephone, characterized in that it is possible to occupy two trunk lines at the same time by a single wired / wireless combined telephone. 6. The method of claim 5, wherein when a ring signal is input, a ring signal is input to one or both trunk lines by a ringer IC so that the ringer is simultaneously connected to the speaker of the wired telephone and the cordless telephone by the respective ringer IC. Two-line wired / wireless combined telephone characterized in that the ringing. 7. The method of claim 6, even if a ring signal is input from the first trunk line, for example, the central processing unit outputs a signal for connecting the relay switch on the radio telephone side to the first trunk line so that the cordless telephone and the first trunk line are connected. Two-line wired / wireless composite telephone, characterized in that. 7. The method according to claim 6, wherein even if a ring signal is input from the second trunk line, the central processing unit outputs a signal for connecting the relay switch on the side of the landline telephone to the second trunk line so that the landline telephone and the second trunk line are connected. Two-line wired / wireless composite telephone method characterized in that.