EP 0367896 A3 19910918 - METHOD FOR THE SIMULTANEOUS TRANSMISSION OF DIGITAL DATA SIGNALS IN BAND-LIMITED TRANSMISSION CHANNELS
Title (en)
METHOD FOR THE SIMULTANEOUS TRANSMISSION OF DIGITAL DATA SIGNALS IN BAND-LIMITED TRANSMISSION CHANNELS
Publication
Application
Priority
DE 3838228 A 19881111
Abstract (en)
[origin: EP0367896A2] The invention relates to a method for the simultaneous transmission of digital data signals in band-limited transmission channels. In the method, the data signals are rounded off before the transmission in order to achieve an adequate minimum signal/noise ratio between data signals and the other signals to be transmitted. The curve shapes for rounded-off data signals according to the invention are more severely band-limited (approximately 80 %) than the corresponding EBU curve shape for FM-RDS. The time functions of the rounded-off data signal sequences do not exhibit any saddles. The advantages of the method according to the invention consist, above all, a) in the minimum PM -> AM conversion, b) in the minimum bandwidth (referred to the data rate) and c) in the very good eye pattern. <IMAGE>
IPC 1-7
IPC 8 full level
H04H 20/36 (2008.01)
CPC (source: EP)
H04H 20/36 (2013.01)
Citation (search report)
- [A] DE 3616864 A1 19870402 - VERKEHRSWESEN HOCHSCHULE [DD]
- [A] GB 2096424 A 19821013 - PHILIPS NV
- [A] TELECOMMUNICATIONS AND RADIO ENGINEERING, Band 24, Nr. 7, Juni 1970, Seiten 30-32, Scriptia Publishing Co., Washington, DC, US; G.B. SELEZNEV et al.: "Automatic stepped carrier adjustment"
- [A] IEEE TRANS. ON COMMUNICATIONS, Band COM-28, Nr. 6, Juni 1980, Seiten 889-897, IEEE, NY, US; H. YAZDANI et al.: "Constant envelope bandlimited BPSK signal"
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0367896 A2 19900516; EP 0367896 A3 19910918; DE 3838228 A1 19900517; DK 324389 A 19900512; DK 324389 D0 19890629
DOCDB simple family (application)
EP 89107860 A 19890429; DE 3838228 A 19881111; DK 324389 A 19890629