Coded data generation or conversion – Analog to digital conversion followed by digital to analog...
Reexamination Certificate
2005-04-12
2005-04-12
Williams, Howard L. (Department: 2819)
Coded data generation or conversion
Analog to digital conversion followed by digital to analog...
C341S143000
Reexamination Certificate
active
06879273
ABSTRACT:
The invention creates a method and a device for digitally transmitting analog signals, in which oversampling is performed in analog/digital and digital/analog converters. In this arrangement, a digital/analog conversion is performed which, in particular, is suitable for VDSL systems. A transmitted digital transmission signal (110) is supplied to a mixing unit (201) and in the mixing unit (201), a receive noise signal (211) applied to a receive noise source terminal (209) is superimposed on the digital transmission signal (110). An interpolation filter unit (203), in combination with a subsequent noise shaping device (205), provides an increase in the frequency bandwidth, resulting in suitable oversampling.
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Clara Martin
Hauptmann Jörg
Magesacher Thomas
Pötscher Thomas
Weinberger Hubert
Infineon - Technologies AG
Jenkins & Wilson & Taylor, P.A.
Williams Howard L.
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