Title:
【発明の名称】両側波帯振幅変調システムにおける隣接チャネル障害を補償する方法および装置
Document Type and Number:
Japanese Patent JPH06500444
Kind Code:
A
Abstract:
PCT No. PCT/DE91/00929 Sec. 371 Date Jun. 1, 1993 Sec. 102(e) Date Jun. 1, 1993 PCT Filed Nov. 28, 1991 PCT Pub. No. WO92/10039 PCT Pub. Date Jun. 11, 1992Disclosed is a procedure for filtering out the lower one of the upper other sideband of a double sideband oscillation consisting of a mix of several double sideband oscillations, the lower one and/or the upper other sideband of which is interfered with by the upper other, respectively the lower one by the upper other, respectively the lower one sideband turned toward it and partially overlapping, in telecommunication systems, in particular multi-channel telephone systems and short wave radio receivers. By means of mixing, demodulation and/or multiple mixing the interfering sidebands of the double sideband oscillation are brought into the frequency position of the interfered with sidebands and are canceled by adding with the opposite sign.
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Inventors:
Heinzmann, Gustav
Application Number:
JP50026392A
Publication Date:
January 13, 1994
Filing Date:
November 28, 1991
Export Citation:
Assignee:
Heinzmann, Gustav
International Classes:
H04B1/12; H04J1/12; (IPC1-7): H04J1/12; H04B1/12
Attorney, Agent or Firm:
Toshio Yano (2 outside)