Signal processing apparatus and methods - Personalized ...
Descrambler subscriber key production system utilizing key seeds stored in descrambler: : Moerder: 178/22.14: 4634807: Software protection device: : Chorley et al. 178/22.08: RE32326: Row grabbing system: : Nagel et al. 348/466: 4633297: Television receiver having teletext processor with ROM for on-screen message ...