An experimental study for a home-use digital VTR

Author

Yamamitsu, C. ; Ide, A. ; Iketani, A. ; Juri, T. ; Kadono, S. ; Matsumi, C. ; Matsushita, K. ; Mizuki, H.

Author_Institution

Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

Volume

35

Issue

3

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

450

Lastpage

457

Abstract

An experimental digital VTR system is described. A modified DCT (discrete cosine transform) has been developed for this system that needs only one-half the number of multipliers of a conventional DCT, making the hardware scale smaller. A data quantity estimator controls the variable-length coding for completion within a synchronization block, keeping the picture quality high. Three stages of error correction correct more errors and make the probability of miscorrection lower. A high area packing density of 270 Mb/in² is brought about by the use of a low-noise head amplifier, optimized payback signal processing, high-performance magnetic heads and tapes, and a stable tracking to narrow tracks

Keywords

digital communication systems; video tape recorders; data quantity estimator; discrete cosine transform; error correction; experimental study; home-use digital VTR; low-noise head amplifier; magnetic heads; magnetic tapes; modified DCT; multipliers; payback signal processing; picture quality; synchronization block; variable-length coding; Audio recording; Audio tapes; Bit rate; Data mining; Digital TV; Discrete cosine transforms; Electronics industry; Laboratories; Motion pictures; Video recording;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.44303

Filename

44303