System for the digital transmission of television

专利名称：System for the digital transmission of

television picture signals with reducedredundancy

发明人：Hentschke, Siegbert, Dr.申请号：EP83102467.4申请日：19830312公开号：EP0090236A2公开日：19831005

专利附图：

摘要：in the digital transmission of television signals on the pcm networks, it issometimes necessary, the transmission speed of fernsehbildsignalen, e.g. thechrominanzsignale, on the link with the predetermined speed to reduce samplingfrequency without the image quality greatly affected.it has the new system in themethod, a sendefilter (fig.2), every second abtastwert in horizontal and vertical

bildrichtung of transferred fernsehbildsignals a numeric value (c) with the same numberof bits of the abtastwerte emits the abtastwert and abtastwerten nearby pixels dependson the empfangsse ite a empfangsfilter (fig.3), the values of between the transmitted

bildpunktwerte einzf\ügenden pixels from the surrounding pixels received valuescalculated. this is the digital filtering in the transmitter and empfangsfilter together suchthat the horizontal and vertical resolution largely maintained and only the diagonalresolution is increased.for the two filters, a aufwandsg\ünstige realization is given.

申请人：ALCATEL N.V.,Alcatel SEL Aktiengesellschaft

地址：Strawinskylaan 537, (World Trade Center) NL-1077 XX AmsterdamNL,Lorenzstrasse 10 D-70435 Stuttgart DE

国籍：NL,DE

代理机构：Graf, Georg Hugo, Dipl.-Ing.

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