09716508 cites 6 patents.

Mechanisms for generating dummy signals for use in reducing data dependent noise in DACs are disclosed. Disclosed mechanisms differentiate between odd and even bits of a digital data signal to be converted and generate dummy signals by inverting some of these bits and leaving other bits as they are (i.e. including them in their non-inverted form). One dummy signal is generated as a sequence of bits that is the same as a sequence of bits of a data signal except that every odd bit of the data signal is inverted. An alternative dummy signal is generated as a sequence of bits that is the same as a sequence of bits of a data signal except that every even bit is inverted. Generating dummy signals in this manner eliminates the need to use calibration, feedback, or transition detectors, advantageously resulting in increased timing margins and substantial power savings over existing implementations.

Title
Dummy signal generation for reducing data dependent noise in digital-to-analog converters
Application Number
15/150833
Publication Number
9716508 (B1)
Application Date
May 10, 2016
Publication Date
July 25, 2017
Inventor
Lin Zhang
Beijing
CN
Agent
Patent Capital Group
Assignee
ANALOG DEVICES GLOBAL
BM
IPC
H03M 1/66
H03M 1/08
H03M 1/06
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