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Digital multimedia reception device

A multimedia and receiver technology, applied in the field of digital multimedia receivers, can solve the problems of high implementation difficulty, high upgrade cost, high cost, etc., and achieve the effect of reducing upgrade cost and implementation difficulty

Inactive Publication Date: 2007-08-08
鼎芯通讯(上海)有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] The disadvantage of existing plug-in products is that the baseband processing module functions are completed by hardware chips, and there are many types of audio broadcasting and TV signals. If the baseband processing module is hardware-based to realize multi-mode reception, it must To develop and produce corresponding receiving chips, for example, to receive analog frequency modulation (FM) signals, it is necessary to develop baseband processing chips capable of analog or digital demodulation of FM signals
The development of new chips needs to go through factory tape-out, manufacturing and other procedures, and the cost is very expensive
[0009] In addition, if the chip is upgraded and optimized, re-spinning and manufacturing are also required, and the upgrade cost is very high
[0010] In addition, in order to solve the power consumption problem of the baseband processing module, the front-end RF receiving module and the ADC module must adopt a high-cost manufacturing process, which is difficult to implement and expensive

Method used

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Fig. 2 is a functional block diagram of the peripheral computer plug-in of the present invention. As shown in Figure 2, the digital multimedia receiver includes a hardware part and a software part. The hardware part includes a radio frequency receiving module for receiving radio frequency signals; an ADC module for converting analog signals into digital signals; a hard-soft interface module for transmitting digital signals To the peripheral computer, the hard and soft interface module connects the hardware part and the software part, and is plugged on the peripheral computer, which can be a universal serial bus (USB) interface, a peripheral component interconnection (PCI) interface, a personal computer memory Card International Association (PCMCIA) interface, etc.; peripheral computer, used to run the modules of the software part, the ...

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Abstract

The invention discloses one digital multi-media receiver, which comprises radio receive module, analogue digital conversion module, hard and soft interface module and outer computer, wherein, the said out computer runs basic band process module, signal analysis module, visual and audio frequency decoding module and human to machine interface module, wherein, the radio signal is received through radio receive modules through analogue modules, etch to realize visual and audio play.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a digital multimedia receiver which adopts software radio to realize a baseband processing module. Background technique [0002] Digital multimedia receivers are widely used in the fields of digital audio broadcasting and digital TV receiving systems, and the product forms can be divided into: [0003] A1. Mobile terminal: the digital multimedia receiver is built into the cellular mobile communication system; [0004] B1. Portable multimedia player (PMP): the digital multimedia receiver is built into the PMP to realize mobile digital video and audio receiving and playing functions; [0005] C1. Peripheral computer plug-in: The digital multimedia receiver is composed of hardware and software, and the software runs on the peripheral computer. [0006] The invention aims at improving the product form of the peripheral computer plug-in, and adopts the concept of software radio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N7/52H04L27/26H04J11/00
Inventor 莫知伟王立宁林森凌
Owner 鼎芯通讯(上海)有限公司
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