Invention Grant
- Patent Title: Signal component cancellation for feedback receiver
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Application No.: US16367601Application Date: 2019-03-28
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Publication No.: US10673661B1Publication Date: 2020-06-02
- Inventor: Franz Kuttner , Alexander Belitzer , Florian Mrugalla , Navatouch Deeying
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Viering, Jentschura & Partner MBB
- Main IPC: H04L25/03
- IPC: H04L25/03 ; H04B1/10

Abstract:
Systems, methods, and circuitries enable selected signal components to be isolated in a feedback transmit signal that includes multiple signal components. In one example, a signal component cancellation system for a feedback receiver includes a transmit chain configured to transmit a transmit signal having at least two signal components with offset center frequencies. The system includes measurement circuitry configured to measure a received signal that results from feedback of the transmit signal and cancellation circuitry configured to cancel a selected signal component from the transmit signal to generate a cancellation signal. The system further includes subtraction circuitry configured to combine the cancellation signal with the measured received signal to generate a component signal corresponding to a contribution of the selected signal component to the received signal and provide the component signal to the feedback receiver.
Information query