Signal transmission interface and digital broadcasting receiver device
A technology of digital broadcasting and signal transmission, applied in broadcasting receiving circuits, transmission systems, electrical components, etc., can solve the problems of large size of board connectors and difficult to use products, and achieve the effect of simplifying the number of pins and easy application.
Active Publication Date: 2010-12-08
WISTRON NEWEB
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Problems solved by technology
But at present, when this type of product is to be combined with a portable multimedia player (Potable Media Player, referred to as PMP) or a home audio system, a set of board connectors (Board Connector) with at least 21 pins are required. Larger volume, not easy to use with applied products
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[0033] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings.
[0034] refer to figure 1 , is a preferred embodiment of the digital broadcast receiving device of the present invention, the digital broadcast receiving device 100 of this embodiment is used to receive a digital broadcast signal, and receive a universal serial bus (hereinafter referred to as USB) of a host terminal 2 The control signal is used to demodulate the digital audio signal in the corresponding channel from the received digital broadcast signal according to the frequency selection parameter in the USB control signal, and transmit it to the host terminal 2 for broadcasting.
[0035] The host terminal 2 can be electronic devices such as a digital television signal receiving device (set-top-box, also known as a set-top box), a home audio...
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The invention relates to a signal transmission interface and a digital broadcasting receiver device, in particular to a signal transmission interface which comprises a USB audio format coding unit, a USB hub and a USB / serial transversal bus bridge unit, wherein the USB audio format coding unit is connected with a digital broadcasting receiver end and converts a digital audio signal provided by the digital broadcasting receiver end into a USB audio signal, the USB hub is connected with the USB audio format coding unit and a host end, transmits the USB audio signal to the host end and receives a USB control signal from the host end, and the USB / serial transversal bus bridge unit is connected with the USB hub and the digital broadcasting receiver end so as to convert the USB control signal which is transmitted from the USB hub into a serial transmission bus control signal and transmit the serial transmission bus control signal to the digital broadcasting receiver end. The invention can simplify the pin number of a transmission interface of the digital broadcasting receiver device and is convenient to combine the digital broadcasting receiver device with the host end so that the application of the digital broadcasting receiver device is easy to popularize.
Description
technical field [0001] The invention relates to a signal transmission interface, in particular to a signal transmission interface of a digital broadcast receiving device. Background technique [0002] Digital Radio System (Digital Radio System) is a broadcasting system that uses digital compression technology and transmission technology to transmit digital audio signals. Common HD Radio products also use this type of technology. The digital broadcasting system enables the digital audio signal to reproduce the original sound after being received by the digital broadcasting radio, without distortion like the traditional analog FM and AM broadcasting signals which are susceptible to various interferences in the transmission process. The advantages of digital broadcasting are: [0003] 1. Strong anti-interference ability, not affected by the fading of radio wave transmission, almost zero distortion, as long as the signal is received, it will be played faithfully. [0004] 2. T...
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Login to View More IPC IPC(8): H04B1/20H04H40/18
Inventor 林子平彭志翔周瑞祥许政雄张志丰
Owner WISTRON NEWEB