Title :
Ghost clean system
Author :
Iga, Hiroyuki ; Matsue, Hiroshi ; Ishii, Akira ; Miyazaki, Isao
Author_Institution :
Toshiba Consumer Products Eng. Lab., Yokohama, Japan
fDate :
11/1/1990 12:00:00 AM
Abstract :
A cost-effective compact digital ghost canceling system has been developed. The essential elements of the system are a highly integrated 64-tap transversal filter, a control IC with signal processor, and a unique iteration algorithm. The ghost canceling TV tuner using the system reduces most ghosts to more than 40 dB in S/I, i.e. most residual ghosts are not perceptible. In addition, it cancels ghosts rapidly using a ghost channel memory. The system operates stably for both strong ghosts and low signal-to-noise ratio
Keywords :
interference suppression; television equipment; television interference; tuning; control IC; digital ghost canceling system; ghost canceling TV tuner; ghost channel memory; iteration algorithm; signal processor; signal-to-noise ratio; transversal filter; Clocks; Control systems; Delay; Pulse generation; Signal generators; Signal processing; Signal processing algorithms; TV; Transversal filters; Tuners;
Journal_Title :
Consumer Electronics, IEEE Transactions on
