Patent · US Active

Transmitter digital-to-analog converter (DAC)-baseband filter (BBF) common mode interface

US9531337B2 · kind B2 · utility

6Cited by

9References

20Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Minghui Chen · Los Angeles, US
Mahim Ranjan · San Diego, US
Jeremy Goldblatt · Encinitas, US
Frederic Bossu · San Diego, US

Key dates

Filing date	Jan 22, 2015
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Apr 10, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/66
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Removing common-mode current from a pair of complementary current signals, including: generating a common-mode voltage of the pair of complementary current signals including at least a first current signal and a second current signal; measuring and outputting a difference voltage between the generated common-mode voltage and a common-mode reference voltage; and removing at least a portion of the common-mode current from the first current signal and the second current signal based on the difference voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.