DocumentCode
1017645
Title
A Compatible Digital Audio Format for Broadcast and Cable Television
Author
Todd, Craig C.
Author_Institution
Dolby Laboratories
Issue
3
fYear
1987
Firstpage
297
Lastpage
305
Abstract
The addition of a digitally modulated carrier to the M-NTSC broadcast television signal would make it possible for television broadcasters to deliver digital audio and data. In laboratory tests, a QPSK carrier modulated with 512 kbits/sec of data has been added at a frequency of 4.85 MHz above the vision carrier. At a carrier level of -20 dB with respect to vision carrier, the new signal has been shown to be compatible with the BTSC stereo and SAP signals.
Keywords
Audio systems; Bandwidth; Cable TV; Digital audio broadcasting; Digital modulation; Electronic equipment testing; Laboratories; Quadrature phase shift keying; TV broadcasting; Video recording;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/TCE.1987.290272
Filename
4071550
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