Invention Grant
- Patent Title: System and method for digital interference cancellation
- Patent Title (中): 数字干扰消除的系统和方法
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Application No.: US12434590Application Date: 2009-05-01
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Publication No.: US08055235B1Publication Date: 2011-11-08
- Inventor: Deepnarayan Gupta , Amol Inamdar
- Applicant: Deepnarayan Gupta , Amol Inamdar
- Applicant Address: US NY Elmsford
- Assignee: Hypres, Inc.
- Current Assignee: Hypres, Inc.
- Current Assignee Address: US NY Elmsford
- Agency: Ostrolenk Faber LLP
- Agent Steven M. Hoffberg
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
A system and method for receiving a signal, comprising an input adapted to receive a radio frequency signal having a strong interferer; a signal generator, adapted to produce a representation of the interferer as an analog signal generated based on an oversampled digital representation thereof; and a component adapted to cancel the strong interferer from radio frequency signal based on the generated analog signal to produce a modified radio frequency signal substantially absent the interferer. The system typically has a nonlinear component that either saturates or produces distortion from the strong interferer, which is thereby reduced. The system preferably employs high speed circuits which digitize and process radio frequency signals without analog mixers.
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