RU108254U1 - AUDIO BROADCAST DISTRIBUTION DEVICE - Google Patents

Abstract

 An audio broadcasting switchgear for installation in a home, connected to a wired broadcasting distribution network in a house or building, comprising a processor and configured to isolate, process, convert and transmit audio signals to subscribers, characterized in that it comprises an input interface unit comprising at least one of the following modules: Ethernet interface module, USB interface module, xDSL interface module, Wi-Fi interface module, WiMAX interface module, IMT-2000 interface module, int DVB-x interface, VHF module.

Description

The invention relates to devices for transmitting an audio signal to wired radio subscribers and can be used to upgrade or replace the radio feeders of a city or rural broadcasting network.

A known system for transmitting audio data in digital format with compression on the main channels for transmitting analog audio signals with a frequency band of 40-15000 Hz and 50-7000 Hz, in high-frequency transmission systems [Pat. RF №2373651 C1, IPC Н04Н 20/02, з. 04/06/2007., Op. November 20, 2009.], Which includes a reference circuit for the structural scheme of the main audio broadcasting with an end transmitting point at which signals are modulated to transfer them to the high-frequency spectrum of high-frequency transmission systems, and an end receiving point at which demodulation of high-frequency signals takes place to extract audio signals broadcasting, moreover, the reference circuit and the corresponding structural circuit of the main channel, designed to transmit over the main network of audio broadcasting signals in digital Format in a standard 2048 kbit / s digital stream from 1 to 2 stereo channels or, respectively, from two to four mono channels corresponding to analog mono channels with a frequency band of 40-15000 Hz, transmit from more than six channels in digital format corresponding to analog channels with a frequency band of 40 -15000 Hz, by compressing the frequency spectrum by suppressing the frequency components of audio signals that do not carry basic information, and introducing certain quantization levels in the digital stream of digital, cable, microwave and optical fiber optic transmission systems.

In the known solution, as channels for the secondary distribution of sound broadcasting programs, the use of wire broadcasting channels for transmitting programs in the city (three-program receivers) and rural areas is allowed. At the same time, the low prospects of this type of communication are indicated. The task of replacing worn networks is not posed.

Similar disadvantages are inherent in the distance data transmission system [Pat. RF №74257 U1, IPC H04L 12/28, s. 10/01/2007., Op. 06/20/2008.], Including a transmission medium, an information receiving means, an audio signal source, a format identification means, at least one computer. At the same time, the computer has a board for collecting audio data, encoding it into a network protocol and converting analog signals to a digital audio stream, while many consumers are included as receiving devices. In one of the options, it is possible to connect subscribers of urban broadcast networks. It should also be noted that this system implies the presence of feedback from the subscriber to the broadcasting studio, which undoubtedly complicates the system and requires the subscriber to have modern high-tech equipment.

As a prototype of the selected switchgear, which is part of a wired radio and television broadcasting system, Internet access, emergency alerts and communications with law enforcement [Pat. RF №94098 U1, IPC Н04М 11/00, G06F 15/16, з. 01/14/2010., Op. 05/10/2010.] Connected via a transformer to the radio feeder of a city or rural broadcasting network of wired broadcasting and including a command transmitter, a command receiver, a power converter, a carrier frequency detector, connected to the processor to isolate sound signals, separate interference and code transmission with reliability excluding false actuation on the actuator, through which the switchgear is connected to the speaker for notification, installed on the landing, outlets, ment of the apartments and the lines of radio outlets installed in the kitchen. By its functionality, the switchgear is capable of providing an Internet connection (for which the system contains equipment for connecting to the Internet connected to a broadcasting network of wired broadcasting). This technical solution implies the possibility of using the existing wired broadcasting network for the latest types of communications, but does not take into account the need to maintain and restore obsolete networks in parallel with other, more modern and efficient, wired (cable) and other networks.

The objective of the utility model was to enable subscribers to receive wired radio programs in the usual format (for example, using three-program receivers) in case of failure or dismantling of the wired broadcasting network in the area from the broadcasting studio (broadcasting equipment room) to the subscriber’s house (building) or apartment.

This problem is solved by a sound broadcasting switchgear for installation in a house (building), connected to wired broadcasting distribution networks in a house (building), comprising a processor and configured to isolate, process, convert and transmit audio signals to subscribers, which, according to the proposal, contains an input interface unit containing at least one of the following modules: Ethernet interface module [], USB interface module [], xDSL interface module [], Wi-Fi interface module [], inte module WiMAX interface [], IMT-2000 [] interface module, DVB-x [] interface module, YKB (FM) [] module.

The inventive utility model is illustrated by drawings.

Figure 1 presents a block diagram of a switchgear; figure 2 presents an example of integration of a switchgear into a broadcast system through a data network built on FTTx technology.

The audio broadcasting distribution device 1 generally comprises a digital signal processing unit 2 (system board, processor, RAM, ROM, digital-to-analog converter), an analog signal processing unit 3 (filters, modulators, adder, amplifiers), a protection and control unit 4 (sensors, matching transformer), control and adjustment unit 5, information input / output unit 6 (for example, via USB interface or via memory cards) and input interface unit 7.

Switchgear 1 can be installed in an anti-vandal telecommunication cabinet containing an FTTB 8 switch (fiber-optic communication line 11 to the building - see, for example,) and is connected to the FTTB 8 switch through the Ethernet port of the input interface unit 7. It is also necessary that broadcasting equipment 9 was connected to the fiber optic communication line 11 through any existing platform 10 of the service provider. The outputs of the device 1 (from the analog signal processing unit 3) are connected to the wired broadcasting distribution network in the house (building), at the end points of which the wired broadcast subscriber receivers 12.

The audio broadcasting device operates as follows.

The signals from the broadcasting equipment room 9 through the platform 10 via the fiber-optic line 11 are sent to the FTTB 8 switch and then (in the example of figure 2 through the Ethernet port) to the switchgear 1. The essence of the device 1 is the receipt of a digital signal, processing and conversion digital signal into an analog signal of wire broadcasting (blocks 2 and 3) and supplying an analog signal to subscriber receivers of wire broadcasting 12. The protection and control unit 4 serves to protect against short circuits that may occur in the driveway and subscriber wiring. The use of sensors in the protection and control unit allows device 1, when removing a short circuit, to automatically resume issuing an analog signal to the building distribution network. The control unit and settings 5 is necessary to provide access for service personnel to the device for its configuration and on-site diagnostics (for connecting, for example, a laptop), in the absence of remote access to the device. Information input / output block 6 (optional) allows you to expand the functionality of device 1.

As a result of the implementation of the claimed technical solution, there is no need to operate obsolete morally and physically wired broadcasting networks. It should be noted that there is a large category of subscribers for whom a wired radio receiver remains a familiar and affordable means of communication. The proposed device will allow you to save this type of information without any additional costs on the part of subscribers, and will also reduce the costs of the service organization, especially in cases where the management of the same organization has modern communication lines.

Claims (1)

An audio broadcasting distribution device for installation in a house, connected to wired radio distribution networks in a house or building, comprising a processor and configured to isolate, process, convert and transmit audio signals to subscribers, characterized in that it contains an input interface unit containing at least one of the following modules: Ethernet interface module, USB interface module, xDSL interface module, Wi-Fi interface module, WiMAX interface module, IMT-2000 interface module, int DVB-x interface, VHF module.