Invention Grant
- Patent Title: DC offset cancellation in direct conversion receivers
- Patent Title (中): 直接转换接收机中的直流偏移消除
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Application No.: US13018449Application Date: 2011-02-01
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Publication No.: US08638883B2Publication Date: 2014-01-28
- Inventor: Rony Ashkenazi , Alexander Zaslavsky , Gregory Uehara , Brian Brunn
- Applicant: Rony Ashkenazi , Alexander Zaslavsky , Gregory Uehara , Brian Brunn
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade Ltd.
- Current Assignee: Marvell World Trade Ltd.
- Current Assignee Address: BB St. Michael
- Main IPC: H04L25/06
- IPC: H04L25/06

Abstract:
A method includes receiving a signal using a direct conversion receiver, while the receiver is set at a gain that is selected from a range of possible gain values. Multiple DC offset correction values are provided for use by a DC offset cancellation loop, each DC offset correction value being associated with a respective sub-range of the range of the possible gain values. A DC offset correction value is selected from among the multiple DC offset correction values based on the gain to which the receiver is set. A DC offset in the signal is canceled by setting the DC offset cancellation loop to the selected DC offset correction value.
Public/Granted literature
- US20110188612A1 DC OFFSET CANCELLATION IN DIRECT CONVERSION RECEIVERS Public/Granted day:2011-08-04
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