RU101607U1 - DEVICE FOR COLLECTIVE RECEIVING OF TV PROGRAMS - Google Patents

Abstract

 1. A device for collective reception of television programs containing an amplification unit, the input of which is connected to the antenna / home headend, at least two active conversion units, each of which is based on a digital demodulator and an analog modulator, at least one the active conversion unit is connected by its input to the output of the amplification unit, characterized in that for each active conversion unit a number of passive conversion units are introduced, the active conversion unit is made of high frequency a coupler, a digital demodulator, a digital coupler, a decoder, an analog modulator, an attenuator and a high-frequency adder, connected in series, the input of the high-frequency coupler serving as the input of the first active conversion unit, one output connected to the input of the digital demodulator, and the other output serving as an input for the subsequent active conversion unit, each of the passive series conversion units, except the last one, is made of a digital coupler, decoder, analog modulo a, an attenuator and a high-frequency adder connected in series, and the last passive conversion unit in a row is free from a digital coupler and a high-frequency adder, wherein the input of the digital coupler of the first passive conversion unit is connected to the output of the digital coupler of the active conversion unit, one output of the digital coupler of the passive unit conversion is connected to the input of the decoder of this unit, and the other output of the digital coupler is connected to the input of the digital

Description

The utility model relates to television systems and can be used in the design of the headend of a cable television system for the collective reception of analog and digital TV signals. Mostly, the device is intended for use in cable television systems as a group DVB-T / SECAM transcoder as part of the local headend. The main function of this device is to convert publicly available television and radio channels broadcast in digital DVB-T format to SECAM analog format.

In accordance with the federal target program "Development of TV and Radio Broadcasting in the Russian Federation for 2009 - 2015" adopted by the Government of the Russian Federation, the population should be provided with a network for the distribution and delivery to the consumer in digital format of all-Russian mandatory publicly accessible television channels and radio channels. One of the elements that ensure the delivery of mandatory public channels to the consumer are home cable networks for the collective reception of television signals.

A device is known [RU patent for the invention No. 2153234] for use in the headend of a cable television system (variants) and a method for distributing programs to subscribers in a cable television system, (RF patent for the invention No. 2153234, H04N 7/16, publ. 20.07.2000) .

This device comprises a modular design of the cable headend and a component of the combining device for the headend. The invention can be used in distribution systems for cable television programs that transmit a large number of program signals with digital compression. This unit device allows you to easily make a selection of programs from the transmitted signals, which is the technical result achieved by him. The invention provides: a distribution circuit for digital and analog cable television; a diagram of one cable television headend serving three different cable television systems, each with a different operating frequency band; a diagram of a modular digital cable television system serving two serially connected cable television systems; diagram of the main components of the base head station of digital cable television for the distribution system of digital cable television, as well as the head station with a combining device. Also presented is a diagram of the main components of a digital and analog cable television headend for a combined digital and analog cable television distribution system, as well as a diagram of the main components of an alternative embodiment of the invention for a digital cable television headend with a combining device and remote control access, a diagram of components of alternative options the implementation of the invention for the headend of digital cable television.

In a headend with a digital input and an analog output, a combining device may be used including decoding devices and analog modulators. The video signal is received in digital form, manipulated, converted and transmitted to the input terminals of the receivers. In this particular design, the video signal is converted from a digital format to an analog format for transmission to input terminals of receivers (in analog form). Using this embodiment of the invention, the advantages of transmitting compressed video signals through satellites can be realized without changing a large fleet of obsolete equipment of the analog input terminals of the receivers.

Radio frequency signals are received by the parent station from a satellite, land line or other means of communication. The shown controlling digital CPU can be remotely controlled or receive specific commands on site. The control CPU provides demultiplexer commands for identifying a subset of the digital video signals. This subset of video signals is selected by the headend for further processing.

After selecting digital video signals, digital video signals are processed by decoding devices. Those skilled in the art will recognize that a wide variety of encoding and decoding methods can be used. After decoding, each analog video signal is processed by an analog modulator prior to transmission to the receiver input terminal (not shown). In this configuration, demultiplexers, decoding devices, and analog modulators can be used. The size of the headend is limited by the available bandwidth for the subscriber’s home. The known device is not intended for the collective reception of terrestrial analog and digital TV signals, expensive and cumbersome.

The closest is a device for collective reception of television programs containing an amplification unit, the input of which is connected to the antenna / home headend, at least two active conversion units, each of which is based on a digital demodulator and an analog modulator, and at least one active conversion unit is connected by its input to the output of the amplification unit (RF Patent for Utility Model No. 68828, H04N 7/01, published on November 27, 2007).

This device contains a large number of active conversion units and active filters.

The device has a block for amplification and leveling of digital and analog signals of terrestrial TV, which is a set of parallel-connected channel filters. A number of channel filters have been introduced into the block of digital TV signal receivers, the outputs of which are connected in parallel with the channel filter outputs of the amplification and leveling block of digital and analog signals of terrestrial TV. Each of the digital signal demodulators of the digital TV signal receiver unit is configured to receive a DVB-T signal.

The channel filter of the amplification and leveling block of digital and analog signals of terrestrial TV contains: summation and division circuits installed at its input and output, filter circuits based on L and C elements, amplifier stages and an adjustable attenuator. The analog modulator of the block of receivers of digital TV signals includes a modulating chip, the output of which is configured to tune to any channel of the TV range, a frequency synthesizer and a controller.

The known device has limited functionality that does not significantly expand the number of converted channels of digital TV (over 6), including due to the serial connection of active conversion units and a completely high-frequency distribution of the input DVB-T signal, while in the federal target The program "Development of television and radio broadcasting in the Russian Federation for 2009-2015" is required to provide up to 20 publicly available channels for the population.

This device has significant redundancy associated with the processing of analog broadcast signals, which should be replaced as the introduction of digital broadcasting.

In the known device there is no possibility of providing consumers with broadcasting channels, also included in the mandatory publicly available digital broadcasting channels, and already included in the 1st state multiplex.

Thus, the limitations of the known device are: a small number of convertible channels of digital TV with significant structural complexity, the inability to convert digital channels for broadcasting.

The task solved by the utility model is the improvement of technical and operational characteristics.

The technical result that can be obtained by performing the claimed device is an increase in the number of channels, simplifying the design and processing of digital signals, expanding functionality.

To solve the problem with achieving the specified technical result in a known device for collective reception of television programs containing an amplification unit, the input of which is connected to the antenna / home headend, at least two active conversion units, each of which is based on a digital demodulator and analog modulator, and at least one active conversion unit is connected by its input to the output of the amplification unit, according to the claimed design, for each active unit, the conversion A number of passive conversion units were introduced, the active conversion unit is made up of a high-frequency coupler, a digital demodulator, a digital coupler, a decoder, an analog modulator, an attenuator and a high-frequency adder, connected in series, the input of the high-frequency coupler serving as the input of the first active conversion unit, one of its output is connected to the input of the digital demodulator, and its other output serves as an input for the subsequent active conversion unit, each of the passive blocks in addition to the last one, the series conversion is made of a digital coupler, decoder, analog modulator, attenuator and a high-frequency adder connected in series, and the last passive conversion unit in a row is free from a digital coupler and a high-frequency adder, and the input of the digital coupler of the first passive conversion unit is connected to the output of the digital branch coupler of the active conversion unit, one branch output of the digital coupler of the passive conversion unit inen to the decoder input of this unit, and the other output of the digital coupler is connected to the digital coupler input of the subsequent passive row conversion unit, for the last passive row conversion unit, the digital coupler output of the previous passive conversion unit is connected to the decoder input, and the attenuator output for the last passive series conversion unit connected directly to the input of the high-frequency adder of the previous passive conversion unit, the outputs of each of the high-frequency sums The next passive conversion unit of the row is connected to the inputs of the high-frequency adders of the previous passive conversion unit, and the output of the high-frequency adder of the first passive conversion unit of the series is connected to the adder input of the active conversion unit, identical to the first active conversion unit described above, all connections of the passive conversion units for the second active the conversion unit, the amplification unit is also provided with a signal switching function, and the output of each of the high-frequency adders of the active conversion units is respectively connected to the switching inputs of the amplification unit for transmitting an analog signal to the home distribution network.

Additional embodiments of the device are possible, in which it is advisable that:

- for each active conversion unit, the last passive row conversion unit was equipped with a digital coupler, the input of the decoder of the last passive series conversion unit is connected to the output of the digital coupler of the previous passive conversion unit through the provided equipped digital coupler, an additional row of passive conversion units was introduced, in this additional row passive conversion units, each of them, with the exception of the last in a row, is made of a digital coupler, deco a unit, an analog modulator, an attenuator, and a high-frequency adder, connected in series, and the last additional passive conversion unit in the row is free from a digital coupler and a high-frequency adder, the input of a digital coupler of the first additional passive conversion unit connected to the output of the equipped digital coupler of the last passive conversion unit of the series , one branch output of a digital coupler of an additional passive conversion unit is single to the decoder input of this unit, and the other output of the digital coupler is connected to the digital coupler input of the subsequent additional passive series conversion unit, for the last additional passive series conversion unit, the digital coupler output of the previous additional passive conversion unit is directly connected to the decoder input, and the attenuator output for the latter additional passive block conversion series connected directly to the input of the high-frequency adder p of the previous additional passive conversion unit, the outputs of each of the high-frequency adders of the subsequent additional passive series conversion units are connected to the inputs of the high-frequency adders of the previous additional passive conversion units, and the output of the high-frequency adder of the first additional passive series conversion unit is connected respectively to the additional switching input of the amplification unit for transmitting the analog signal to the home distribution network;

- a control and monitoring unit was introduced, connected to the control and monitoring bus to the control inputs of the decoders of the active conversion units and passive conversion units, respectively;

- a transmodulation unit was introduced, installed in front of the input of the amplification unit.

These advantages, as well as the features of this utility model are illustrated by the best option for its implementation with reference to the accompanying drawings. Figure 1 depicts a functional diagram of the claimed device;

Figure 2 is a structural diagram of an active conversion unit (BPA);

Figure 3 is a structural diagram of a passive conversion unit (BPP);

Figure 4 is a structural diagram of a control and monitoring unit (BOOM);

Figure 5 is a structural diagram of an amplification unit with a switching function (BUK);

6 is a structural diagram of a transmodulation unit (BTRM).

A device for collective reception of television programs (figure 1) contains a block 1 gain, the input of which is connected to the antenna / home headend. The device has at least two active conversion units 2 (BPA) - figure 1 shows three BPA 2. Each BPA 2 is based on a digital demodulator 3 and analog modulator 4 (figure 2). One BPA 2 is connected by its input to the output of the control unit 1 (Fig. 1).

For each BPA, a number of passive conversion units 5 (BPP) has been introduced. BPA 2 (figure 2) is made of a high-frequency coupler 6, a digital demodulator 3, a digital coupler 7, a decoder 8, an analog modulator 4, an attenuator 9 and a high-frequency adder 10 connected in series. The input of the high-frequency coupler 6 serves as the input of the first BPA 2 (Fig.1, 2). One output of the high-frequency coupler 6 is connected to the input of the digital demodulator 2, and the other output serves as an input for the subsequent PSU 2. Each of the line 5 BPPs (Fig. 3), except for the last block, is made of a digital coupler 11, a decoder 12, an analog modulator 13, an attenuator 14 and a high frequency adder 15 connected in series. The last BPP 5 in a row is free from a digital coupler 11 and a high-frequency adder 15.

The input of the digital coupler 11 of the first PSU 5 is connected to the output of the branch of the digital coupler 7 of the PSU 2. One branch output of the digital coupler 11 of the PSU 5 is connected to the input of the decoder 12 of this unit, and the other output of the digital coupler 11 is connected to the input of the digital coupler 11 of the subsequent PSU 5 of the row. For the last line 5 BPP, the output of the digital coupler 11 of the previous BPP5 is connected to the input of the decoder 12 (without the digital coupler 11 shown in Fig. 3), and the attenuator output 14 for the last 5 line BPP is connected directly to the input of the high-frequency adder 15 of the previous BPP 5 (t .e. for the last BPP 5 row without high-frequency adder 15, shown in figure 3).

The outputs of each of the high-frequency adders 15 of the next BPP of the 5th row are connected to the inputs of the high-frequency adders 15 of the previous BPPs 5, and the output of the high-frequency adder 15 of the first BPP of the 5th row is connected to the input of the adder 10 of the BPA 2. All connections of the BPP 5 are made identical to the first BPA 2 the second BPA 2 (figure 1), etc. The amplification unit 1 is also provided providing a signal switching function (BEC). The output of each of the high-frequency adders 10 of the active conversion units 2 is respectively connected to the switching inputs of the BUK 1 for transmitting the analog signal to the home distribution network.

To increase the number of channels without increasing the number of BPA 2 for each BPA 2, the last BPP of the 5th row is equipped with a digital coupler 11 (FIGS. 1, 2). The input of the decoder 12 of the last BPP of the 5th row is connected to the output of the digital coupler 11 of the previous BPP 5 through the supplied digital coupler 11. An additional row of the BPP 16 is introduced (Fig. 1). In this additional row of BPPs 16, each of them, except the last in a row, is made of a digital coupler 11, a decoder 12, an analog modulator 13, an attenuator 14, and a high-frequency adder 15 connected in series. The last additional BPP 16 of the row is free from the digital coupler 11 and the high-frequency adder 15. The input of the digital coupler 11 of the first additional BPP 16 is connected to the output of the equipped digital coupler 11 of the last last BPP of the 5th row. One output of the branch of the digital coupler 11 of the additional BPP 16 is connected to the input of the decoder 12 of this block (Fig. 3), and the other output of the digital coupler 11 is connected to the input of the digital coupler 11 of the subsequent additional BPP of 16 rows. For the last additional BPP 16 row, the output of the digital coupler 11 of the previous additional BPP 16 is directly connected to the input of the decoder 12, and the output of the attenuator 14 for the last additional BPP 16 row is connected directly to the input of the high-frequency adder 15 of the previous additional BPP 16. The outputs of each of the high-frequency adders 15 subsequent additional BPP 16 row connected to the inputs of the high-frequency adders 15 of the previous additional BPP 15. The output of the high-frequency adder 15 of the first additional about BPP 16 row is connected respectively to the additional switching input of the amplification unit 1 (BUK) for transmitting an analog signal to the home distribution network.

The control and monitoring unit 17 (Fig. 4) (can be optionally inserted) is connected to the control and monitoring bus to the control inputs of the decoders 8 and 12 of the BPA 2 and the BPP 5, respectively (Figs. 1, 2, 3).

Block 18 transmodulation (BTRM) (Fig.6) (can be entered optionally) is installed at the input of the BUK 1 (Fig.1) and is used to convert multiplexes of satellite broadcast DVB-S / S2 in the DVB-T format.

Blocks BPP 5 may optionally have a DVB decoder high-speed digital interface 19 (figure 3), such as Ethernet or USB, which is designed to connect a non-volatile storage device or network storage. Such blocks make it possible to convert into SECAM signals not only the digital DVB transport stream coming from the digital coupler 11, but also pre-prepared audio-video and text materials converted into a format that is perceived by the DVB decoder and stored on an external storage device. This option allows you to easily organize additional local information channels at the facility where the device is installed, in addition to the ether channels converted by the device.

The device operates (figure 1) as follows.

The device allows to facilitate the transition from analog broadcasting in SECAM format to digital format, as it allows to ensure the operability of the entire population of the park of television receivers, both analog and digital. Distributing the received digital channels in an analog form in the home cable network, the device ensures their reception with the population without the use of digital set-top boxes by subscribers. At the same time, the possibility of using digital set-top boxes that want to accept paid channels in addition to the required channels is not excluded, since the device does not impede the spread of digital signals. This allows you to solve the problems of the federal target program for apartment buildings centrally and at lower cost compared to the mass distribution of subscriber consoles. In addition, if the objects are located outside the broadcasting zones, the device provides for the possibility of receiving publicly available state-owned satellite broadcasting.

The DVB-T COFDM signal (Fig. 1) is supplied to the amplification unit 1 (ACU). In the case of receiving a DVB-S / S2 satellite broadcast signal, this signal may come from the output of the BTRM 18. The amplification and switching unit 1 inputs, distributes and amplifies the DVB input signals and compositions, amplifies and outputs the SECAM output signals. BUK 1 also allows you to pass other TV signals of the TV range without processing them, which allows you to easily use the claimed device as part of other cable TV systems. Those skilled in the art will understand that, schematically, the BUK 1 can be implemented in various ways. Figure 5 shows one embodiment. In this embodiment, BUK 1 consists of a broadband trunk amplifier 20 of the decimeter range signals with gain and slope adjustment of the frequency response, input multi-channel high-frequency adder 21, and output high-frequency coupler 22. From the input of BUK 1, the DVB-T COFDM broadcast signal is input to one of the inputs of the adder 21 and its output enters the amplifier 20, amplifies in it and, through the coupler 22, simultaneously enters the outputs of the BUK 1 for the cable network and for the BPA 2 units, SECAM signals from all the chains of BPA 2 and BPP 5 fall on the remaining inputs of the adder 21, add up with the input signal and then repeat the path of the input signal through the broadband main amplifier 20 and the output high-frequency coupler 22. The operation of this circuit is ensured by the fact that the signals of all blocks of the BPA 2 and BPP 5 , as well as the input signal differ in frequency. The equalization of the levels of TV signals over the channels is provided by the attenuators 9 and 14 in the BPA 2 and BPP 5 units. And the general amplification and slope of the frequency response to compensate for the difference in the attenuation of the signals in the cable network at different frequencies is performed by adjusting the broadband main amplifier 20.

From the output of the BUK 1, the DVB signal is fed to the input of the first PSU 2. The active channel converting units (BPA) 2 convert the COFDM DVB-T digital broadcasting signals into the DVB-T digital transport stream, and convert the 1 channel of the transport stream to the SECAM signal. The digital DVB transport stream from the output of the digital coupler 7 of the BPA 2 is transmitted to the inputs of the digital couplers 11 for each next BPA 2 - the BPP 5, and the digital broadcast signal COFDM DVB-T from the output of the high-frequency coupler 6 of the first BPA 2 is fed to the input of the high-frequency coupler 6 of the next after it BPA 2 (Fig.1, 2, 3).

Thus, in each of the control units 2, through the high-frequency coupler 6, the COFDM DVB-T signal is supplied to the next in the control unit 2 circuit and to the digital demodulator 3 as part of this control unit 2. The digital demodulator 3 converts the COFDM DVB-T signal into a digital transport stream DVB containing information for all TV and radio channels selected when setting up the multiplex. Next, the DVB transport stream is fed to the digital coupler 7. The digital coupler 7 amplifies and normalizes the DVB transport stream by feeding it to the input of the DVB-T decoder 8 and to the output of the PSU 2, for further supply to the passive conversion units 5 (BPP). In BPP 5, further transformations are similar to those given for BPU 2. DVB BPP 5 decoder 12, in accordance with the settings, extracts digital data from the transport stream related to the selected television or radio broadcasting channel, or receives previously prepared data from external sources via a digital interface 19 and converting this data into low-frequency signals: composite video and audio. Low-frequency signals are fed to an analog modulator 13, which converts them into a television signal in SECAM format. The SECAM signal through the attenuator 14, which allows you to adjust the output level of the signal, is fed to the high-frequency adder 15. The adder 15 adds the high-frequency signal of this unit with the signals from the previous ones in the block circuit of BPA 2 and BPP 5. Signals from the chains of BPA 2 and BPP 5 are fed to BEECH 1 is added up between itself and the input signal and amplified (if necessary). Further, the total signal is fed to the system’s output to the subscriber cable network to the receiving devices, ensuring the operation of both traditional SECAM television devices and modern devices that support the DVB-T standard.

Similar to the above, the work of additional BPPs is carried out 16. As can be seen from figure 1, the use of additional BPPs 16 allows you to increase the number of channels without increasing the number of used BPU 2.

The digital demodulator 3 used in the BPA 2 consists of a tuner chip that transfers a high-frequency broadcast signal to an intermediate frequency, which is tuned to a demodulator chip that converts a DVB-T signal modulated by COFDM modulation into a DVB digital transport stream.

The DVB 8 and 12 decoder in BPA 2, BPP 5, additional BPP 16 is a specialized integrated circuit, the so-called A “system-on-a-chip” system containing transport stream demultiplexing modules, high-performance digital decoders of a digital video stream with support for the MPEG4 encoding standard, and several processor cores of general application for executing a control program and decoding an audio stream. In addition, high-speed random access memory and non-volatile memory of programs and settings are connected to the “system-on-chip” system.

Analog modulator 4, 13 in BPA 2, BPP 5, additional BPP 16 converts the low-frequency composite video signal and audio signal into a high-frequency television signal in SECAM format.

These elements are standard and are widely used in the construction of cable television networks.

Block 17 control and monitoring (BOOM) is included in the system optionally, allows you to monitor the status of the system and manage it through various channels of wired and wireless communications. It will be appreciated by those skilled in the art that, schematically, BOOM 17 can be implemented in various ways. Figure 4 shows one of the options for its implementation. In this embodiment, the BOOM 17 consists of a general-purpose microcontroller 23, a first conversion chip 24 for the internal serial interface of the system, and a second conversion chip 25 for the communication interface. The internal serial interface goes to the control and monitoring bus of the device. The communication interface is used to connect an external communication system with a standardized interface that is not considered within the framework of this device, for example, a GSM modem with an RS-232 port and an AT command system. The work of BOOM 17 is as follows; the microcontroller 23, at a predetermined time interval, alternately polls the state parameters of all BPA 2 and BPP 5 blocks, and thus contains current information about the state of the system in its memory. Upon requests received through the communication interface of the second chip 25, the microcontroller 23 transmits this data to the dispatch center. Also, according to the commands of the dispatch center, also coming through the interface of the second microcircuit 25, the microcontroller 23 can, through the internal interface of the first microcircuit 24, change the operating parameters of the BPA 2 and BPP 5 units.

Block 18 transmodulation (BTRM) allows you to convert multiplexes of satellite broadcasting DVB-S / S2 in the DVB-T format. BTRM 18 is known from the prior art (Fig.6) and is a serial connection of the demodulator 26 DVB-S, remultiplexer 27 transport streams and modulator 28 DVB-T. The conversion is as follows: DVB-S / S2 satellite broadcast signals to demodulator 26 are converted to digital DVB transport streams, which are fed to remultiplexer 27, which regroups them into one transport stream and adjusts its speed to the level required for DVB-T, Further, the new transport stream enters the modulator 28, where it is converted into a DVB-T signal and goes to the output of the BTRM 18.

The main advantages of the claimed device:

The ability to transfer between blocks of the demodulated digital transport stream DVB-T and the star-serial connection topology of the converting blocks allow for a large number of conversion channels and to ensure high adaptability of the system to specific application conditions.

The modular system for constructing the device allows, if necessary, to increase the number of converted channels over 33, as well as to quickly reduce their number to the required number (at least 1 channel).

The possibility of using the device, either separately or in conjunction with other cable television systems.

The possibility of using the device not only for broadcasting, but satellite broadcasting.

Possibility of remote monitoring and control via communication channels.

The ability to organize a local information channel from prepared audio, video and text data.

The most successfully announced device for collective reception of television programs is industrially applicable for converting several digital broadcasting broadcasting multiplexes in the DVB-T COFDM format with MPEG2 and MPEG4 encodings, containing a total of up to 33 television and radio channels, into the SECAM analogue broadcasting format.

Claims (6)

1. A device for collective reception of television programs containing an amplification unit, the input of which is connected to the antenna / home headend, at least two active conversion units, each of which is based on a digital demodulator and an analog modulator, at least one the active conversion unit is connected by its input to the output of the amplification unit, characterized in that for each active conversion unit a number of passive conversion units are introduced, the active conversion unit is made of high frequency a coupler, a digital demodulator, a digital coupler, a decoder, an analog modulator, an attenuator and a high-frequency adder, connected in series, the input of the high-frequency coupler serving as the input of the first active conversion unit, one output connected to the input of the digital demodulator, and the other output serving as an input for the subsequent active conversion unit, each of the passive series conversion units, except the last one, is made of a digital coupler, decoder, analog modulo a, an attenuator and a high-frequency adder connected in series, and the last passive conversion unit in a row is free from a digital coupler and a high-frequency adder, wherein the input of the digital coupler of the first passive conversion unit is connected to the output of the digital coupler of the active conversion unit, one output of the digital coupler of the passive unit conversion is connected to the input of the decoder of this unit, and the other output of the digital coupler is connected to the input of the digital the coupler of the subsequent passive row conversion unit, for the last passive row conversion unit, the output of the digital coupler of the previous passive conversion unit is connected to the decoder input, and the attenuator output for the last passive series conversion unit is connected directly to the input of the high-frequency adder of the previous passive conversion unit, the outputs of each of the high-frequency adders subsequent passive conversion blocks of the series are connected to the inputs of high-frequency adders previous passive conversion units, and the output of the high-frequency adder of the first passive conversion unit of the series is connected to the input of the adder of the active conversion unit, identical to the above for the first active conversion unit, all connections of passive conversion units for the second active conversion unit are made, the amplification unit also provides a signal switching function , and the output of each of the high-frequency adders of the active conversion units is respectively connected n inputs to the switching gain block for transmitting the analog signal to house distribution network. 2. The device according to claim 1, characterized in that a control and monitoring unit is introduced, connected to the control and monitoring bus to the control inputs of the decoders of the active conversion units and passive conversion units, respectively. 3. The device according to claim 1, characterized in that the introduced transmodulation unit installed at the input of the amplification unit. 4. A device for collective reception of television programs containing an amplification unit, the input of which is connected to the antenna / home headend, at least two active conversion units, each of which is based on a digital demodulator and an analog modulator, at least one the active conversion unit is connected by its input to the output of the amplification unit, characterized in that for each active conversion unit a number of passive conversion units are introduced, the active conversion unit is made of high frequency a coupler, a digital demodulator, a digital coupler, a decoder, an analog modulator, an attenuator and a high-frequency adder, connected in series, the input of the high-frequency coupler serving as the input of the first active conversion unit, one output connected to the input of the digital demodulator, and the other output serving as an input for the subsequent active conversion unit, each of the passive series conversion units, except the last one, is made of a digital coupler, decoder, analog modulo a, the attenuator and the high-frequency adder connected in series, and the last passive conversion unit in a row is free from the high-frequency adder, the input of the digital coupler of the first passive conversion unit is connected to the output of the digital coupler of the active conversion unit, one output of the digital coupler of the passive conversion unit is connected to the input of the decoder of this unit, and the other output of the digital coupler is connected to the input of the digital coupler of the subsequent passive row conversion unit, for the last passive row conversion unit, the output of the digital coupler of the previous passive conversion unit is connected to the decoder input, and the attenuator output for the last passive series conversion unit is connected directly to the input of the high-frequency adder of the previous passive conversion unit, the outputs of each of the subsequent passive high-frequency adders conversion blocks of the series are connected to the inputs of the high-frequency adders of the previous passive blocks conversion, and the output of the high-frequency adder of the first passive conversion unit of the series is connected to the input of the adder of the active conversion unit, identical to the first active conversion unit described above, all connections of the passive conversion units for the second active conversion unit are made, the amplification unit also provides a signal switching function, and the output of each of the high-frequency adders of the active conversion units is respectively connected to the switching input m of an amplification unit for transmitting an analog signal to a home distribution network, while an additional row of passive conversion units is introduced, the input of the decoder of the last passive conversion unit is connected to the output of the digital coupler of the previous passive conversion unit through the digital coupler of the last passive unit, in this additional row of passive units each of them, with the exception of the last in a row, is made of a digital coupler, decoder, analog modulator, and a ttenuator and a high-frequency adder connected in series, and the last additional passive row conversion unit is free from a digital coupler and a high-frequency adder, and the input of a digital coupler of the first additional passive conversion unit is connected to the output of a digital coupler of the last passive series conversion unit, one output of an additional passive digital coupler branch the conversion unit is connected to the decoder input of this unit, and the other digital output the new coupler is connected to the input of the digital coupler of the subsequent additional passive block conversion series, for the last additional passive block conversion series, the output of the digital coupler of the previous additional passive block conversion is directly connected to the input of the decoder, and the attenuator output for the last additional passive block conversion series is connected directly to the input of the high-frequency adder previous additional passive conversion unit the outputs of each of the high-frequency adders of the subsequent additional passive conversion units of the series are connected to the inputs of the high-frequency adders of the previous additional passive conversion units, and the output of the high-frequency adder of the first additional passive conversion units of the series is connected respectively to the additional switching input of the amplification unit for transmitting the analog signal to the home distribution network . 5. The device according to claim 4, characterized in that a control and monitoring unit is introduced, connected to the control and monitoring bus to the control inputs of the decoders of the active conversion units and passive conversion units, respectively. 6. The device according to claim 4, characterized in that the introduced transmodulation unit installed at the input of the amplification unit.