Patent EP0096943A2 successfully refreshed from Google Patents.
EP0096943A2
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EP
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Terminal arrangement for a duplex transmission system
Assignee: Koninklijke Philips NV
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Filing: 1983-06-15
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Granted: —
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Expires: 2003-06-15
Abstract
Abstract Terminal arrangement for a duplex transmission system for digital signals, comprising an equalizer for reception and an equalizer for transmission. …<??>In order to realise a terminal arrangement which automatically adapts itself to the transmission path the terminal arrangement comprises an adaptive quantized feedback equalizer (ER) for reception and a pulse-shaping equalizer for transmission (ET) and a converter arrangement (OM) for converting the coefficients (C1, C2, . . .) from the equalizer for reception into the correction factors ( alpha 1, . . .) for the equalizer for transmission.
Inventors
- 👤 Geerlof Jan Korevaar
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 04:23
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/14; H04L5/1423; H04L25/00; H04L25/02; H04L25/03; H04L25/03006; H04L25/03012; H04L25/03019; H04L25/03057; H04L25/38; H04L25/40; H04L25/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A terminal arrangement for a duplex transmission system for digital signals, comprising a transmitting arrangement and a receiving arrangement and a coupling arrangement for coupling the transmitting and receiving arrangements to a duplex transmission path, the receiving arrangement comprising an equalizer for reception and the transmitting arrangement comprising an equalizer for transmission and means being provided for adjusting the equalizer for transmission in response to the received digital signals in combination with the equalizer for reception, characterized in that the equalizer for reception is provided by an adaptive quantized feedback equalizer having adaptively adjustable coefficients (Cl, C2, C3, ...)and that the equalizer for transmission is provided by a pulse-shaping equalizer which generates a number (n) of variably delayed versions of the digital input and after multiplication of these versions by an associated correction factor (α n) adds them to the digital input signal for forming a predistorted digital transmit signal and that a converter arrangement is provided for converting the adaptively adjustable coefficients of the said feedback equalizer into the correction factors for the pulse-shaping equalizer in accordance with the recursive expressions:
Claim 2
Dependent Claim
182 words
A terminal arrangement for a duplex transmission system for digital signals, comprising a transmitting arrangement and a receiving arrangement and a coupling arrangement for coupling the transmitting and receiving arrangements to a duplex transmission path, the receiving arrangement comprising an equalizer for reception and the transmitting arrangement comprising an equalizer for transmission and means being provided for adjusting the equalizer for transmission in response to the received digital signals in combination with the equalizer for reception, characterized in that the equalizer for reception is provided by an adaptive quantized feedback equalizer having adaptively adjustable coefficients (Cl, C2, C3, ...)and that the equalizer for transmission is provided by a pulse-shaping equalizer which generates a number (n) of variably delayed versions of the digital input and after multiplication of these versions by an associated correction factor (α n) adds them to the digital input signal for forming a predistorted digital transmit signal and that a converter arrangement is provided for converting the adaptively adjustable coefficients of the said feedback equalizer into the correction factors for the pulse-shaping equalizer in accordance with the recursive expressions:
References Cited (Backward Citations)
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