Title:
2つのデータストリームの歪み補正器
Document Type and Number:
Japanese Patent JP3675484
Kind Code:
B2
Abstract:
PCT No. PCT/EP95/04472 Sec. 371 Date Nov. 25, 1997 Sec. 102(e) Date Nov. 25, 1997 PCT Filed Nov. 14, 1997 PCT Pub. No. WO96/16495 PCT Pub. Date May 30, 1996A system for equalizing an input signal including a datastream modulated on a carrier, with respect to both transmission channel distortions and local receiver distortions, includes a network for frequency downshifting the input signal, a controlled non-recursive filter (20) responsive to the downshifted input signal, and a demodulator (30) for receiving an output signal from the controlled filter. A signal processing network, including a filter network with a transfer function (40, 60, 80, 100) which is the inverse of the transfer function of the controlled filter, responds to an output signal from the demodulator for producing output control signals. The control signals are coupled to a coefficient control input of the non-recursive filter for equalizing the signal with respect to both transmission channel and receiver distortion.
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Inventors:
Sheps, Geerhard Hans Herbert
Dinzel, Siegfried
Dinzel, Siegfried
Application Number:
JP51653296A
Publication Date:
July 27, 2005
Filing Date:
November 14, 1995
Export Citation:
Assignee:
Deutsche Thomson-Brandt GmbH
International Classes:
H04L27/38; H03H21/00; H04L27/01; (IPC1-7): H04L27/38
Domestic Patent References:
| JP5970027A | ||||
| JP3139069A | ||||
| JP6013346B1 | ||||
| JP62260434A |
Other References:
W.E.MATTIS, 'A HYBRID FRACTIONALLY SPACED DIGITALLY CONTROLLED EQUALIZER FOR SATTELITE SYSTEMS', IEEE Pacific Rim Conference on Communications,Computers and Signal Processing, カナダ,1989年 6月,P.428-486
Attorney, Agent or Firm:
Tadahiko Ito
Shuhei Katayama
Shuhei Katayama