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US 7,197,683 B2Granted
Digital-to-analog conversion with an interleaved, pulse-width modulated signal
AssigneePatent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh
InventorOskar Schallmoser
Life of this patent
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Abstract
The invention relates to a method and a circuit for digital-to-analog conversion, in which an interleaved pulse-width modulation signal (VPWM) is low-pass-filtered.
Claims13
A method for digital-to-analog conversion,
- in which an interleaved, pulse-width modulated signal is generated from a digital signal, and
- the interleaved, pulse-width modulated signal is filtered using a filter having a low-pass characteristic,
- the interleaved, pulse-width modulated signal, in the case of at least some of the values of the digital signal, containing within a pattern repetition time at least two time subblocks having one specific logic state and at least two further time subblocks having another specific logic state, and
- the total of the pulse widths of the time subblocks representing the digital value.
1 more element
Dependencies are inferred from the claim text.