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Siemens and Halske AG
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Siemens and Halske AG
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Publication date
Application filed by Siemens and Halske AGfiledCriticalSiemens and Halske AG
Publication of GB299767ApublicationCriticalpatent/GB299767A/en
H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo
(AREA)