Dual-purpose machine for receiving digital audio-broadcast below 30MHz and playing digital music

A digital audio broadcasting and digital audio technology, applied in the parts and electrical components of TVs and color TVs, can solve the problem of not being able to receive and listen to digital audio broadcasting, and achieve the effect of reducing costs and practical and fast application methods.

Inactive Publication Date: 2008-02-27
成都纽斯达电子有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing music players do not have the ability to receive and listen to terrestrial digital audio broadcasting below 30MHz
So far, there has not

Method used

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  • Dual-purpose machine for receiving digital audio-broadcast below 30MHz and playing digital music
  • Dual-purpose machine for receiving digital audio-broadcast below 30MHz and playing digital music

Examples

Experimental program
Comparison scheme
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example 1

[0028] Example 1 Dual-purpose machine for receiving digital audio broadcasting and playing digital music with a frequency below 30MHz

[0029] The circuit of this machine is composed as follows: there are tuners connected in sequence, ADC analog-to-digital converter, and digital broadcast decoder. The digital converter and the DAC digital-to-analog converter are connected, and the output terminals of the DAC digital-to-analog converter are respectively connected with a loudspeaker and an earphone. in:

[0030] Tuner, using Atmel T4260BM

[0031] ADC analog-to-digital converter, using Wolfson WM8731

[0032] Digital Radio Decoder with RadioScape RS500

[0033] Microprocessor CPU, using Samsung S3c2410

[0034] Digital music memory, using MT46V16M16

[0035] Digital music decoder, using (hardware integrated circuit) ATJ2085

[0036] DAC digital-to-analog converter, using Wolfson WM8731

[0037] Speaker, using 8 ohm speaker

[0038] Headphones, using Sennheiser MX500.

example 2

[0039] Example 2 Dual-purpose machine for receiving digital audio broadcasting and playing digital music with a frequency below 30MHz

[0040] The circuit of this machine is composed as follows: there are tuners connected in sequence, ADC analog-to-digital converter, and digital broadcast decoder. The digital converter and the DAC digital-to-analog converter are connected, and the output terminals of the DAC digital-to-analog converter are respectively connected with a loudspeaker and an earphone. in:

[0041] Tuner, using Atmel T4260BM

[0042] ADC analog-to-digital converter, using Wolfson WM8731

[0043] Digital Radio Decoder with RadioScape RS500

[0044] Microprocessor CPU, using Samsung S3c2410

[0045] Digital music memory, using MT46V16M16

[0046] Digital music decoder using (software program) MAD: MPEG Audio Decoder

[0047] DAC digital-to-analog converter, using Wolfson WM8731

[0048] Speaker, using 8 ohm speaker

[0049] Headphones, using Sennheiser MX500....

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Abstract

This invention discloses a dual purpose digital audio-frequency broadcast receiver/digital music broadcast device. It is composed of: in proper order connected a tuning, an ADC connecting the output end of CPU, a digital broadcast decoder (DBCD) connecting the output end of the CPU, a DAC connecting the output end of the DBCD, a loudspeaker connecting the output end of the DAC. It comprises also: a digital music memory and a digital music decoder connecting respectively with the CPU, an ear-phone connecting the output end of the DAC, DAC connecting CPU, the output end of the digital music decoder connecting the input end of the DAC. Advantages are: new application of broadcast receiver, being used for also receiving music with lowered product cost.

Description

technical field [0001] The invention relates to a real-time global digital audio broadcasting receiver, in particular to a digital audio broadcasting receiver with a music player function and a frequency below 30 MHz. technical background [0002] With the popularization of the global digital broadcasting (DRM: Digital Radio Mondiale) technology, the traditional medium and short wave analog broadcasting is being replaced by the global digital broadcasting. Music players capable of playing digital music in various formats are also quite popular. However, none of the existing music players has the ability to receive and listen to terrestrial digital audio broadcasts below 30 MHz. Up to now, there has not been a digital audio broadcasting receiver with a music player function and a frequency below 30 MHz, which can both listen to digital broadcasting and play music. Contents of the invention [0003] The purpose of the present invention is to provide users with a dual-purpo...

Claims

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Application Information

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IPC IPC(8): H04B1/16H04B1/06H04N5/44H04H1/00
Inventor 刘昊春梁林蒋博
Owner 成都纽斯达电子有限责任公司
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