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Digital recording on video cassette

 

作者: Steven Ebstein,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1983)
卷期: Volume 54, issue 7  

页码: 883-885

 

ISSN:0034-6748

 

年代: 1983

 

DOI:10.1063/1.1137481

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A system is described that records digital data onto video cassettes and writes the data to a computer tape for subsequent processing. The system is capable of recording and playing back 172 800 bytes/s. This corresponds to the maximum rate achievable with a nine‐track computer tape drive writing 1600 bits per inch at 125 ips. A standard two‐hour cassette has a capacity of 1.2 Gbytes. Six checkbits are written with each 16‐bit word to facilitate error detection and correction. Upon playback, the data are written via DMA into a computer and then to a nine‐track computer tape. Error rates of less than 1 word in 300 000 have been achieved with an off‐the‐shelf portable video recorder and commercially available tape. The system comprises a low‐cost solution to the problem of high‐volume, fast data recording at remote locations when a small error rate can be tolerated.

 

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