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Professional audio recording and reproducing equipment using CF card as storage medium

A storage medium, a professional technology, applied in the direction of information storage, static memory, digital memory information, etc., can solve problems such as degradation, unfavorable long-term storage, magnetic tape attenuation, etc.

Inactive Publication Date: 2009-07-29
上海风格信息技术股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional broadcast-level audio recording equipment uses a reel as the recording device, and a magnetic tape as the storage medium. The reel is designed with a mechanical structure, which is relatively easy to damage, and the magnetic tape itself has problems such as natural attenuation and degradation of electromagnetic properties, which is not conducive to long-term storage.

Method used

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  • Professional audio recording and reproducing equipment using CF card as storage medium
  • Professional audio recording and reproducing equipment using CF card as storage medium
  • Professional audio recording and reproducing equipment using CF card as storage medium

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] In order to achieve the above object, the technical scheme of the present invention is as follows: a professional audio recording and playback device utilizing a CF card as a storage medium, including an embedded CPU 1, which is characterized in that the embedded CPU 1 is connected with the CF card 2, and the embedded CPU 1 is also connected to the field programmable gate array 3, and the field programmable gate array 3 is connected to the input and output ports through the audio circuit. Wherein the audio circuit comprises an AD conversion module 4, a DA conversion module 5, an AES decoding module 6 and an AES encoding module 7, wherein the output of the AD conversion module 4 is connected to the field programmable gate array 3, and the input of the AD conversion module 4 is connected to the analog The balanced input port 8 is connected, the i...

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Abstract

The invention relates to a professional audio recording-playing device which adopts a CF card as storage medium, comprises an embedded CPU and is characterized in that the embedded CPU is connected with the CF card; the embedded CPU is also connected with a filed programmable gate array; and the filed programmable gate array is connected with an input-output port through an audio circuit. The device has the advantages of completely getting rid of the open-reel drive which has large volume and is inconvenient for use; a recorder of the CF card has small volume, can reach high audio index and can completely satisfy the requirements of the professional audio recording and playing; furthermore, the CF card has small size, thus being easy to store.

Description

Technical field: [0001] The invention relates to audio recording and playback equipment, in particular to a professional audio recording and playback equipment using a CF card as a storage medium. Background technique: [0002] Traditional broadcast-level audio recording equipment uses a reel as the recording device and a magnetic tape as the storage medium. The reel is designed with a mechanical structure and is relatively easy to damage. However, the magnetic tape itself has problems such as natural attenuation and degradation of electromagnetic properties, which is not conducive to long-term storage. For applications that require security and stability, such as radio program recording and playback, it is inevitable to use other better media to store audio. [0003] A recorder using a CF card is a kind of audio collection using an embedded system and storing the collected audio data on a CF card. It is also a professional audio recording and playback device that can read ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/16
Inventor 王波邵勇武瑞陈蓉陈立德顾樑吕家瑜曹毅惠新标
Owner 上海风格信息技术股份有限公司