发明名称 GHOST ELIMINATING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a ghost eliminating device that realizes a stable operation even on the occurrence of an excessive proximity ghost. SOLUTION: A proximity ghost detection section that sets a tap coefficient group to a transversal filter for generating a pseudo proximity ghost of an acyclic proximity ghost eliminating section, is provided with a means (13) that applies Fourier transform to a digital signal extracted from an proximity ghost area in a received television signal, a means (14) that divides a reference waveform Fourier coefficient group for ghost detection stored in advance by the Fourier coefficient group, a means (15) that applies inverse Fourier transform to the quotient, a means (16) that generates a time series signal group and a means (18) that shares the excess amplitude to signals in the vicinity of the time series when the amplitude of the time series signal group exceeds the amplitude applicable to the pseudo proximity ghost generating transversal filter and supplies the tap coefficient group to the pseudo proximity ghost generating transversal filter.
申请公布号 JP2001136414(A) 申请公布日期 2001.05.18
申请号 JP19990319409 申请日期 1999.11.10
申请人 NEC VIEWTECHNOLOGY LTD 发明人 KOBAYASHI MICHIO;SAKURAI HIROFUMI
分类号 H04N5/21;(IPC1-7):H04N5/21 主分类号 H04N5/21
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