Channel investigations of a helical-scan digital video recorder at normal and trick-mode playback

Author

Wong, C. ; Denissen, A.J.M.

Author_Institution

Philips Res. Lab., Eindhoven, Netherlands

fYear

1994

fDate

5-7 Apr 1994

Firstpage

5

Lastpage

8

Abstract

Based on a modified 8 mm mechanism using Metal-Evaporated tapes and special heads which provide a track width of 10 μm, we have realised a recording channel with a raw bit rate of 72 Mb/s suitable for recording of compressed HDTV signals. The recorder employs a 24-25 code with embedded tracking tones for channel coding and Reed-Solomon product codes for error-correction coding. For full utilization of the available error-correction coding in trick modes, studies have been made on the signal behaviour in such situations. Through the use of a PC-controlled error-statistics measurement system we are able to evaluate the real-time performance of the recording channel

Keywords

Reed-Solomon codes; automatic test equipment; channel coding; digital magnetic recording; error correction codes; magnetic heads; video recording; video signals; video tape recorders; 10 micron; 24-25 code; 72 Mbit/s; 8 mm; PC-controlled system; Reed-Solomon product codes; bit rate; channel coding; compressed HDTV signals recording; embedded tracking tones; error correction coding; error-statistics measurement system; helical-scan digital video recorder; magnetic heads; metal-evaporated tapes; normal mode playback; real-time performance; recording channel; signal behaviour; trick-mode playback;

fLanguage

English

Publisher

iet

Conference_Titel

Storage and Recording Systems, 1994., International Conference on

Conference_Location

Keele

Print_ISBN

0-85296-630-X

Type

conf

DOI

10.1049/cp:19941122

Filename

380531