JPH02177754A - Subscriber's transmitter - Google Patents

Abstract

PURPOSE:To send a voice signal and a data signal integrally as digital signals by providing a digital line connecting to a network termination section connecting to a subscriber line and through which the voice signal and the data signal are sent to the subscriber's equipment as the digital signal, and a terminal adaptor connecting to the digital line and converting the voice signal into an analog signal. CONSTITUTION:When a terminal equipment connecting to digital lines 11a, 11b makes a call, a call control signal is sent through the digital lines 11a, 11b as an S interface signal and the line is connection according to a call control protocol for an exchange and the ISDN of an exchange station via a network termination section 13 directly. When a terminal equipment connecting to an analog line 12 makes a call, a call request signal is sent by using a control line 17. A control interface 35 detects the call request signal and sends the call request to a microprocessor 36 via a bus 37.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a home bus system that integrates voice and data and transmits it within a home.

(Conventional technology) Conventionally, the transmission line in the home was based on the Japan Electronics Machinery Association standard E.
A home bus system standardized by T-2101 is known. The standardized home bus system will be explained based on FIG.

60 is a home path controller that terminates external signals such as CATV, public telephone lines, and airwaves, and supplies them to the home; 61 is a coaxial cable that transmits video signals; and 62 is a TV/TV controller that is connected to the coaxial cable 61. receiver, 63
a, 63 b, and 63 c are paired wires that transmit voice signals; 63 d is a paired wire that transmits call control control signals;
64 is a home telephone connected to bare wires 63a, 63b, 63c, and 63dK.

The home path controller 60 terminates the CATV, airwave, and upstream television signals of the coaxial cable 61, amplifies them, mixes them, and distributes them using the coaxial cable 61, thereby realizing two-way television signal transmission.

In addition, the home path controller 60ti accommodates a telephone line and pair lines 63a, 63b, and 63c, and realizes internal telephone calls and external line connection functions based on control signals from the pair line 63d.

On the other hand, the integrated service digital network (ISDN), which integrates not only conventional voice communication but also data communication, is also used in public telephone networks.
commercialization has begun. The l5DN standardizes the l5DN user network interface, which is an interface between network termination equipment and terminal equipment, with the aim of providing a variety of services and applications in a single network.

This is a signal that is so-called 2B+D, which is a multiplexed signal of the B channel, which transmits voice signals and data signals at a transmission rate of 64 kbps, and the D channel, which transmits call control signals and packet communications at a transmission rate of 16 kbps.
■It is called the basic service of the interface in IC. In the 15DN, when connecting terminals that send and receive conventional analog signals, it is decided that a device called a terminal adapter that converts the digital signal to an analog signal must be used for each terminal. However, conventional standardized home bus systems have had the problem of not being able to transmit digitized audio and data signals.

On the other hand, if you try to use the 15DN user network interface as it is as a home transmission line, you will need a terminal adapter for each terminal for connection with conventional equipment (7kl), and you can use devices connected to conventional telephones and home buses as they are. There was a problem with not being able to connect to. Another problem is that the ISDN line alone does not allow for internal communication of voice and data signals, which is accomplished with conventional home buses.

Furthermore, there was a problem in that it was not possible to support internal calls between conventional analog devices such as intercoms and door phones.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to realize a home bus system that can integrally transmit audio signals and data signals as digital signals.

'6gL (@Means for Solving the Problem) The home transmission device for transmitting voice signals and data signals of the present invention includes a network termination section connected to a subscriber line, and the network termination section t.
[A connected digital line that transmits audio and data signals into the home as digital signals, a terminal adapter that is connected to the digital line and converts audio signals into analog signals, and an analog line that transmits audio signals into the home as analog signals. It is characterized by consisting of.

Further, a second home transmission device of the present invention is characterized in that it has an exchange that is connected to the network termination section and performs exchange between the digital line, the terminal adapter, and the subscriber line.

Further, the third in-home transmission device of the present invention includes a control line for transmitting the call control signal of the analog line to the in-house, a control unit connected to the control line, and a control unit connected to the terminal adapter and the control unit. It is characterized by having an opening/closing part for the analog line.

Further, a fourth in-home transmission device of the present invention includes a control line for transmitting a call control signal of the analog line to the in-house, a control section connected to the control line, and a connection between the terminal adapter and the control section. The communication path switch is characterized in that it has a communication path switch and a plurality of analog transmission lines connected to the communication path switch and transmitting audio signals as analog signals.

Furthermore, the home path controller of the present invention includes a demultiplexer connected to the digital line, a call control interface connected to the demultiplexer, a codec connected to the demultiplexer, and a line connected to the codec. A terminal adapter comprising an interface, a control unit connected to the call control interface and the fin interface and controlling the whole, and a control ink face connected to the control line and the control unit in the opening/closing unit according to claim 3; , the analog line, the control unit, and the line interface ([characterized in that it has an opening/closing unit composed of a connected switch).

Further, the second home path controller of the present invention includes a demultiplexing section connected to the network termination section, a call control interface connected to the demultiplexing section and the control section, and a call control interface connected to the digital line. It is characterized by comprising a demultiplexer and a communication path switch connected to the demultiplexer, the controller, and the codec, which are connected to the demultiplexer and the network termination part.

(effect) The in-home transmission device of the present invention will be explained.

S reference point 1c which is the terminal interface signal of l5DN
Since the physical layer signal of the basic service of the j# interface can be transmitted over 100 meters using two pairs of bare wires, an in-home transmission line with a bus configuration can be constructed. In the following explanation, the signal of the physical layer of the interface located at the S reference point will be referred to as the S interface signal.

However, since it is inefficient to connect conventional analog devices to each terminal via a terminal adapter, the present invention provides a configuration in which the analog signal via the terminal adapter is transmitted together with the digital signal within the home, and the terminal adapter can be shared. We are hiring.

FIG. 1(a) is a diagram illustrating the basic configuration of a first in-home transmission device of the present invention.

10 is a subscriber line, 11 is a digital line that transmits voice signals and data signals as digital signals to the premises, 12 is an analog line that transmits voice signals as analog signals, and 13 is a subscriber line transmission signal as an S interface signal. 14 is a terminal adapter that converts digital signals and analog signals.

Signal transmission will be specifically explained using FIG. 1(a).

Voice and data signals are multiplexed at a central switching center,
It is transmitted over the subscriber line. The network termination unit 13 terminates this subscriber transmission signal and converts it into an S interface signal. This S interface signal is transmitted to a terminal in the home via the digital line 11. The S interface signal is also sent to the terminal adapter 14, converted into a 7' analog audio signal, and transmitted to the analog device via the analog line 12.

On the other hand, the signal from the terminal is transmitted through the digital line 11 and sent to the network termination section 13. The analog voice signal is transmitted through an analog line 12, digitized by a terminal adapter, and sent to a network termination section 13. These signals are multiplexed at the network termination, converted into subscriber transmission signals, and sent to the switching center.

However, although signal distribution is realized in the first home's own transmission device, it is not possible to realize the extension call function provided by the conventional home bus system. Therefore, it is necessary to provide a switching function between lines that transmit voice and data signals.

FIG. 1(b) is a diagram illustrating the basic configuration of a second home transmission device of the present invention.

10 is a subscriber line, 11 is a digital line that transmits voice signals and data signals as digital signals to the premises, 12 is an analog line that transmits voice signals as analog signals, and 13 is a subscriber line transmission signal to an S interface signal. 14 is a terminal adapter that converts digital signals and analog signals; 15 is an exchange that performs the function of exchanging internal calls between the digital line 11 and analog line 12 and an external line through the network terminal 13; .

Signal transmission will be specifically explained using FIG. 1(b).

In the case of an outside call, voice and data signals are multiplexed at a central switching office and transmitted over subscriber lines. The network termination unit 13 terminates this subscriber transmission signal and converts it into an S interface signal. This S interface signal is exchanged at the exchange 15, converted into analog f words by the digital line 11 and terminal adapter 14, and sent to the analog line 1.
2 to the terminal in the home.

Furthermore, signals from the terminals are transmitted through the digital line 11, exchanged at the exchange 15, and then sent to the network termination section 13. Analog voice signals are transmitted through an analog line 12, digitized by a terminal adapter 14, exchanged by an exchange 15, and sent to a network termination section 13. These signals are multiplexed at the network termination, converted into subscriber transmission signals, and sent to the switching center.

On the other hand, in the case of an internal call, since the digital line 11 multiplexes and transmits the signals of two lines, communication between digital lines is realized by looping back the digital signal at the exchange 15. The voice signal is digitized via the terminal adapter 14 and returned by the exchange 15, thereby realizing an extension call with the digital line.

On the other hand, although the in-home transmission devices of the first and second inventions achieve signal distribution, they do not allow internal calls between analog devices, such as between conventional intercoms and door phones. Therefore,
Call control for analog signals is performed using a dedicated control line, and a switch is required to separate the analog line from the terminal adapter so that mutual calls can be made.

FIG. 1(e) is a diagram illustrating the basic configuration of the third in-home transmission device of the present invention.

10 is a subscriber line, 11 is a digital line that transmits voice signals and data signals as digital signals to the premises, 12 is an analog line that transmits voice signals as analog signals, and 13 is a subscriber line transmission signal as an S interface signal. 14 is a terminal adapter that converts digital signals and analog signals; 16 is an opening/closing unit that disconnects the analog line from the terminal adapter 14; 17 is a control line that transmits call control signals of the analog line to the premises; 18 is a control section that controls the opening/closing section 16 based on signals from the control line 17.

Signal transmission will be specifically explained using FIG. 1(C).

External calls are realized in the same way as the first device.

On the other hand, K uses the control line 17 to perform call control on the analog line 12 in order to realize an extension call on the analog line 12 such as an intercom.

When making an extension call within the analog line, the control section 18 opens the opening/closing section 16 in accordance with the signal C from the control line 17, thereby making an extension call between analog devices.

On the other hand, when communicating with a digital line or connecting to an outside line, the control section 18 closes the opening/closing section 16 in accordance with a signal from the control line 17, thereby realizing mutual communication via the terminal adapter 14.

On the other hand, the in-home transmission devices of the first, second, and third inventions cannot realize multiple extension calls between analog lines. Therefore, it is necessary to provide a switching function between multiple analog lines.

FIG. 1(d) is a diagram illustrating the basic configuration of the fourth in-home transmission device of the present invention.

10 is a subscriber line; 11 is a digital line that transmits voice signals and data signals to the premises as digital signals; 12a;
12 b and 12 c are analog lines that transmit voice signals as analog signals; 13 is a network termination unit that converts subscriber line transmission signals into S interface signals; 14 is a terminal adapter that converts digital signals and analog signals; 19 17 is a call path switch that switches between analog lines 12a, 12b, and 12e, and 17 is an analog line 12a,
Control lines 12b and 12c transmit call control signals to the premises, and 18 is a control unit that controls the communication path switch 19 based on signals from the control line 17.

Signal transmission will be specifically explained using FIG. 1(d).

External calls are realized in the same way as the first device.

On the other hand, for extension calls using analog lines, the control line 17 is used to control calls of the analog lines 12a, 12b, and 12c. During an extension call within the analog line, the lock control unit 18 controls the call path switch 19 according to the signal from the control line 17, and the analog line 12a, 12j,
An extension call is made by connecting between 12c and 12c. On the other hand, in the case of a call with a digital line or an external line connection, the control unit 18
controls the communication path switch 19 according to the control line 17 signal, connects the analog lines 12a, 12b, 12c and the terminal adapter 14, and realizes mutual communication with the subscriber line 10 and the digital line 11 through the terminal adapter 14. be done.

The above explanation was based on a digital line using the I5DN I interface, but the subscriber line can be a leased line or ISDN.
Similar in-home transmission can be achieved using other digital lines.

Further, by using a terminal adapter that can convert data signals such as modem signals as well as voice signals, internal and external calls can be realized.

(Example) Hereinafter, an example of the in-home transmission device of the present invention will be described in detail.

FIG. 2 is a diagram illustrating the basic configuration of the first embodiment of the present invention. This embodiment uses the first and third aspects of the present invention.

10 is a subscriber line, lla and llb are digital lines consisting of two pairs of wires that transmit voice signals and data signals as digital signals to the premises, and 12 is a pair of wires that transmits voice signals as analog signals. 13 is a network termination section that converts subscriber line transmission signals into S interface signals; 14 is a terminal adapter that converts digital signals and analog signals; 16 is an opening/closing section that disconnects the analog line from the terminal adapter 14; 17 is a control line that transmits analog line call control signals to the premises; 18
2 is a control unit that controls the opening/closing unit 16 based on a signal from the control line 17; 21 is an antenna that receives an airwave television signal; and 20 is a coaxial cable that is connected to the antenna 21 or CATVIC and transmits the television signal into the home. It is. In this example, the in-home transmission line is an analog airwave,
Or a coaxial cable that transmits CATV television signals and pair wire 2 that transmits digital audio and data signals.
A pair of wires that transmits analog voice signals and a pair of wires that transmits analog call control information, together with a coaxial cable 1
It consists of 4 pairs of wires.

FIG. 1Ce) is a diagram illustrating an embodiment of the first home path controller of the present invention. This corresponds to the shaded area in FIG. 2, and constitutes a part of the -bkel home path controller on the home bus.

30 is a demultiplexer (S) connected to the digital lines 11a and llb and demultiplexes the S interface signal into B channel and D channel signals; 3 is a demultiplexer 30;
a call control interface (LAPD) that transmits and receives the D channel signal and processes the call control protocol; 32 is a codec that transmits and receives the D channel digital voice signal from the demultiplexer 30 and converts it into an analog voice signal;
33 is a line interface that terminates the analog line 12 and extracts call control information using dial pulses and bush tones transmitted as analog audio signals; 34;
35 is a control interface that transmits and receives control signals of the control line 17 and performs a control communication protocol, 37 is a bus, and 36 is a microprocessor (CPU) that controls the entire system and performs call processing. be.

The operation of the first embodiment will be explained in detail using FIG. 2 and FIG. 1(e).

Describe your first outside line call.

When a terminal connected to the digital lines 11a and llb makes an outgoing call, a call control signal is transmitted through the digital lines 11a and llb as an S interface signal, and is sent directly to the network terminal unit 1.
3, the line is connected to the switching center's exchange according to the call control protocol of the I5DN. On the other hand, when receiving call control signals, they are multiplexed at the central exchange and transmitted over subscriber lines. The network termination unit 13 terminates this subscriber transmission signal, converts it into an S interface signal, and transmits it to a terminal in the home using the digital lines 11a and 11b, and the terminal processes the incoming call according to the S interface signal.

On the other hand, when a terminal connected to the analog line 12 makes a call, the terminal sends a call request signal using the control line 17 in order to close the switch 34 to the most vJK control line. Control interface 35 detects the outgoing request signal and connects bus 37
The outgoing request is sent to the microprocessor 36 via the microprocessor 36. The microprocessor 36 closes the switch 34 in accordance with the call request and sends a call enable signal back to the terminal via the control interface 35. The terminal then presses the phone number 7-
? It is sent to the analog line 12 as a dial pulse signal. The line interface detects the bush tone and dial pulse and sends the telephone number to the microprocessor 36. Once the microprocessor has stored the telephone number, it sends the call control interface 31)C a call setup request and the number. The call control interface 31 converts the signal into a call setting signal and sends it to the demultiplexing section 30, which is sent to the network termination section 13 via the digital lines 11a and 11b, transmitted through the subscriber line 10, and sent to the exchange of the switching center. When the line connection is completed, the subscriber line signal is converted into an S interface signal at the network termination unit 13, inputted to the demultiplexer 30 via the digital lines 11a and Ilb, and then converted to an analog signal via the codec 32, line interface 33, and switch 34. It is connected to line 12 and a call begins.

Further, in the case of an incoming call, a call setting request is detected via the demultiplexer 30 and the call control interface 31, and the microprocessor 3
Sent to 6. After closing the switch 34, the microprocessor connects the control line 17 via the control interface 35.
After sending a simultaneous incoming signal to all terminals, the line interface is used to ring a bell to notify all terminals of the incoming call. When there is a terminal that responds, the microprocessor 36 sends a response signal to the call control interface 31 and the demultiplexer 30 to the exchange at the exchange, allowing a call to be made.

One-way line calls cannot be made at the terminals connected to the digital lines 11a and 11b because a call back at the switching center is required. On the other hand, in a terminal connected to the analog line 12, when making a call, the terminal first opens the control line section switch 34, and therefore sends an extension call request signal to the control line 17. The control interface 35 detects the extension call request signal and sends it to the bus 37.
An extension call request is sent to the microprocessor 36 via the microprocessor 36.

Based on the extension call request, the microprocessor 36 opens the switch 34 and sends a call permission signal back to the terminal via the control interface 35. In this way, analog line 1
2 is disconnected, so an extension call can be realized by occupying the analog line 12 and making a call in a format similar to an intercom, or by using the control line 17 to set up a call to the other party's terminal.

Further, the air waves received by the antenna 21 are amplified and then transmitted and distributed as they are on the coaxial cable 20.

FIG. 3 is a diagram illustrating the basic configuration of a second embodiment of the present invention.

This embodiment uses the first, second, and third aspects of the present invention.

10 is a subscriber line, lla and llb are digital lines consisting of two pairs of wires that transmit voice signals and data signals to the premises as digital signals, and 12 is a pair of wires 1 that transmits voice signals as analog signals. 13 is a network termination section that converts subscriber line transmission signals into S interface signals; 14 is a terminal adapter that converts digital signals and analog signals; 15 is a digital line 1;
1a.

11b1 Internal call between terminal adapters and network termination section 1
16 is an opening/closing unit that disconnects the analog line from the terminal adapter 14, 17 is a control line that transmits call control signals of the analog line to the premises, and 18 is a signal of the control line 17. Closing part 1 based on
6, 21 is an antenna that receives an airwave television signal, and 20 is antenna 21 or CAT.
The coaxial cable, LLC, and LID connected to V and transmitting television signals into the home are digital lines that connect the network termination section 13 and the exchange. In this embodiment, the in-home transmission line consists of a coaxial cable for transmitting analog airwaves or CATV television signals, two pairs of wire pairs for transmitting digital voice and data signals, and a pair of wires for transmitting analog voice signals. It consists of a pair of wires that transmit analog call control information, one coaxial cable, and four pairs of wires.

FIG. 1(f) is a diagram illustrating an embodiment of the second home path controller of the present invention. This corresponds to the area surrounded by the hatched area in FIG. 4, and constitutes a part of the home path controller that controls the home path.

30a, 30b are digital lines 11c, lid
a demultiplexer (S) that is connected to the S interface signal and demultiplexes the S interface signal into B channel and D channel signals;
31a and 31b are demultiplexing units 30a, respectively.
, a call control interface (LAPD) that transmits and receives D channel signals of 30b and processes call control protocols.
, 32 is a codec that sends and receives the digital audio signal of the D channel from the demultiplexer 30 and converts it into an analog audio signal, and 33 is a dial pulse that terminates the analog line 12 and is transmitted as an analog audio signal. 34 is a line interface for extracting call control information from the analog line 12;
5 is a control interface that sends and receives control signals of the control line 17 and processes a control communication protocol; 37 is a bus; 36
38 is a communication path switch that exchanges digital signals from the demultiplexing units 30a, 30b, and r-deck 32 under instructions from the microprocessor 36. It is.

The operation of the second embodiment will be explained in detail using FIG. 3 and FIG. 1(f).

First, the calling procedure will be explained. The exchange of this embodiment performs the same function as the exchange of the exchange of the first embodiment.

When a terminal connected to digital line 11a, 1lb) makes a call, the call control signal is sent to digital line IIa, llb.
is transmitted as an S interface signal, and the demultiplexer 3
0b, the call control interface 31b notifies the microprocessor 36 of the calling request. microprocessor 3
6 performs routing, and when the connection destination is a terminal connected to the home transmission line, a call setting signal is sent using the call control interface 31b and the demultiplexer 30b, and when there is a response from the called terminal, the call path switch 38 is controlled to return the signals of the digital lines 11a and 11b to perform an extension call. On the other hand, if calling to an outside line, call control interface 3
A call setting signal is sent to the exchange of the exchange using the 1a1 demultiplexer 30a. When a response signal from the other party's terminal is received from the exchange of the switching center via the demultiplexer 30a1 and the call control interface 31a, it controls the communication path switch 38 and sends the response signal to the subscriber line 1.
0 and digital lines 11a and llb are connected, and a call begins.

On the other hand, when a terminal connected to the analog line 12 makes a call, the terminal first sends a call request signal using the control line 17 in order to close the switch 34 to the control line. Control interface 35 detects the outgoing request signal and sends the outgoing request to microprocessor 36 via path 37. The microprocessor 36 closes the switch 34 in accordance with the call request and sends a call OK back to the terminal via the control interface 35. The terminal then transmits the telephone number to the analog line 12 in the form of a bush tone or dial pulse signal. The line interface detects the bush tone and dial pulse and sends the telephone number to the microprocessor 36. The microprocessor 36 routes the telephone number and executes call setting procedures to the digital lines 11a and llb in the case of an internal call and to the digital lines 11c and lid in the case of an external call, in the same manner as in the first embodiment. Bye.

A call can be made by controlling the call path switch 38 in response to each response and exchanging audio signals.

Next, the call reception procedure will be explained.A call setting signal from the exchange is received by the microprocessor 36 using the demultiplexer 30a and the call control interface 31a. The microprocessor 36 inputs phone numbers and IS
The called terminal is selected using the terminal identifier of the DN protocol. When the receiving terminal is connected to the digital lines 11a and 1lbK, the microprocessor 36 uses the call control interface 31b1 and the demultiplexer 30b to send a call setting signal to the terminal. When a response signal is returned from the terminal, the response signal is sent to the exchange at the switching center via the call control interface 31a1.
The signal is sent via the demultiplexer 30a, and the call path switch 38 is controlled to connect the subscriber line 10 and the digital lines 11a and llb, and a call begins.

For terminals connected to the analog line, the microprocessor 36 closes the switch 34, sends a simultaneous incoming signal to the control line 17 via the control interface 35, and then calls the terminals using the line interface. Ring a bell and notify all terminals of the incoming call. There is a terminal that responded. The microprocessor sends a response signal to the switching center via the call control interface 31a1 and the demultiplexer 30a, controls the call path switch 38, and connects the subscriber line to the codec 32, thereby starting a call.

FIG. 4 is a diagram illustrating the basic configuration of a third embodiment of the present invention.

This embodiment uses the first, second, third, and fourth aspects of the present invention.

10 is a subscriber line, lla and llb are digital lines consisting of two pairs of wires that transmit voice signals and data signals as digital signals to the premises, and 12a, 12b, and 12c each transmit voice signals as analog signals. An analog line consisting of one pair of wires, 13 a network termination section that converts subscriber line transmission signals into S interface signals, 14 a terminal adapter that converts digital signals and analog signals, 15 digital lines 11a, llb, A switchboard performs the function of exchanging internal calls between terminal adapters and external lines via the network termination section 13, a call path switch 19 realizes a function of exchanging analog lines, and 17 transmits call control signals of the analog line to the premises. 18 is the control line 17
21 is an antenna that receives an airwave television signal; 20 is a coaxial cable that is connected to the antenna 21 or CATV and transmits the television signal into the home;
e and lid are digital lines connecting the network termination section 13 and the exchange. In this embodiment, the in-home transmission line is a coaxial cable that transmits analog airwaves or CATV television signals, two pairs of wire pairs that transmit digital audio and data signals, and three pairs of wires that transmit analog audio signals. It consists of pair wires that transmit analog and analog call control information, one coaxial cable, and six pairs of wire pairs.

The operation of the third embodiment will be explained in detail using FIG.

In this embodiment, the operation of the terminal connected to the digital line is the same as in the third embodiment.

Analog line 12a, i2b, 12c
When making a call to an outside line from a terminal connected to the terminal, a call request signal is first sent to the control line using the control line 17. Control interface 35 detects the outgoing request signal and sends the outgoing request to microprocessor 38 via bus 37. The microprocessor 38 requests an outgoing call (accordingly, controls the call path switch 19 to connect the terminal adapter 14 to one analog line), and sends back to the terminal via the control interface 35 the number of the available analog line indicating that the outgoing call is possible. Next, the terminal sends the telephone number to the designated analog line using a button tone or dial pulse signal, and the rest of the call can be made using the same procedure as in the second embodiment.

On the other hand, for an extension call within an analog line, an extension call request signal is first sent using the control line 17. Control interface 3
5 detects the extension call request signal and sends the extension call request signal to the microprocessor 36 via the bus 37. In accordance with the extension call request ζ, the microprocessor 36 controls the call path switch 19 to disconnect one analog line, and sends the available analog line number to the terminal via the control interface 35 to indicate that the call is possible. In this way, analog line 12
a, 12 b, 12 c (7) -ft Since it is disconnected from the terminal adapter 14, it is possible to monopolize the analog line 12 and talk in a format similar to an intercom, or use the control line 17 to set up a call to the other party's terminal. You can make internal calls by doing this.

In addition, when receiving a call to a terminal connected to an analog line, the control unit 18 controls the call path switch 19 to connect one of the analog lines to the terminal adapter 14, and connects it to the control line 17 via the control interface 35. A simultaneous incoming call signal and an analog line number are sent to the terminal, and when the terminal responds, a call is started using the same procedure as in the second embodiment.

(Effects of the Invention) By using the in-home transmission device of the present invention, digitized audio signals and data signals can be transmitted into the home using a bus configuration similar to a home bus.

Therefore, it is possible to standardize one outlet for audio signals and one data signal on the transmission path, and there is an effect that data terminals and telephones can be freely connected in the house regardless of analog signals or digital signals.

Furthermore, if the second device is used, there is an effect that extension communication of voice signals and data signals can be realized.

Further, by using the third device, it is possible to realize an in-home transmission device that can also handle extension calls between conventional analog devices such as intercoms and door phones.

Furthermore, by using the fourth device, it is possible to realize an in-home transmission device that can handle multiple extension calls between analog devices.

[Brief explanation of the drawing]

FIG. 1(a) is a diagram illustrating the basic configuration of a first in-home transmission device of the present invention. FIG. 1(b) is a diagram illustrating the basic configuration of a second home transmission device of the present invention. FIG. 1(C) is a diagram illustrating the basic configuration of the third in-home transmission device of the present invention. FIG. 1(d) is a diagram illustrating the basic configuration of the fourth in-home transmission device of the present invention. FIG. 1(e) is a diagram illustrating an embodiment of the first home path controller of the present invention. FIG. 1(f) is a diagram illustrating an embodiment of the second home path controller of the present invention. FIG. 2 is a diagram illustrating a first embodiment of the in-home transmission device of the present invention. FIG. 3 is a diagram illustrating a second embodiment of the in-home transmission device of the present invention. FIG. 4 is a diagram illustrating a third embodiment of the in-home transmission device of the present invention. FIG. 5 is a diagram illustrating a conventional home bus transmission device. In the figure, 10 is a subscriber line, 11.11a. 11b is a digital line; 12. 12 a, 12
b. 12c is an analog line, 13 is a network termination part, 14 is a terminal adapter, 15 is an exchange, 16 is an opening/closing part, 17 is a control line, 18 is a control part, 19 is a communication path switch, 20 is a coaxial cable, 21 is an antenna, 30.30 a.
30b is a demultiplexer, 31.31a and 31b are call control interfaces, 32 is a coach, 33 is a line interface, 34 is a switch, 35 is a control interface, 37 is a path, and 36 is a microprocessor (CPU).
, 38 is an analog communication path switch, 60 is a home path controller, 61 is a coaxial cable, 62 is a television receiver, 63 a, 63 b, 63 c, 6
3d is a pair of wires, 64 is a home telephone, 70 is a termination device, 71 is a coaxial cable, 72 is a terminal adapter, 73 is a television receiver, 74 is a pair of wires, and 75 is a telephone set.

Claims (6)

[Claims] (1) In an in-home transmission device that transmits voice signals and data signals, there is a network termination section that is connected to the subscriber line, and a digital line that is connected to the network termination section and transmits the voice and data signals as digital signals to the premises. an in-home transmission device comprising: a terminal adapter that is connected to the digital line and converts an audio signal into an analog signal; and an analog line that transmits the audio signal as an analog signal into the home. (2) The home transmission device according to claim 1, further comprising an exchange connected to the network termination section and performing exchange between the digital line, the terminal adapter, and the subscriber line. Device (3) In the home transmission device according to claim 1, a control line for transmitting the call control signal of the analog line to the home, a control section connected to the control line, and a control section connected to the terminal adapter and the control section. An in-home transmission device characterized by having an opening/closing part for the analog line. (4) In the home transmission device according to claim 1, a control line for transmitting the call control signal of the analog line to the home, a control section connected to the control line, and a connection between the terminal adapter and the control section. an in-home transmission device characterized by having a communication path switch and a plurality of analog transmission lines connected to the communication path switch and transmitting audio signals as analog signals. (5) The terminal adapter according to claim 3, further comprising a demultiplexer connected to the digital line, a call control interface connected to the demultiplexer, a codec connected to the demultiplexer, and a call control interface connected to the codec. a terminal adapter comprising a line interface, a control unit connected to the call control interface and the line interface and controlling the whole, and a control interface connected to the control line and the control unit in the opening/closing unit according to claim 3; and a home path controller having an opening/closing section comprising the analog line, the control section, and a switch connected to the line interface. (6) In the home path controller according to claim 5, a demultiplexing section connected to the network terminal section, a call control interface connected to the demultiplexing section and the control section, and a demultiplexing section connected to the network terminal section, a call control interface connected to the digital line. A home path controller comprising a demultiplexing section and a communication path switch connected to the demultiplexing section and the network termination section, the control section, and the codec.