System and method for estimating channel condition based on filtered pilot energy signal
AssigneeMarvell International Ltd.
InventorChris Cheng-Chieh Lee
Life of this patent
Estimating the term…
Abstract
A receiver may estimate a channel condition based on a difference between a pilot energy signal and a filtered pilot energy signal. The receiver may further switch to a stereophonic mode when both the difference and an energy level of the pilot energy signal satisfy a predetermined requirement of the receiver, and switch to a monophonic mode when either the difference or the energy level of the pilot energy signal fail to satisfy the predetermined requirement of the receiver.
Claims20
A receiver comprising:
- an extractor configured to extract a pilot energy signal from an input signal;
- and
- a detector configured to cause the receiver to output a monophonic signal based on a residual signal indicative of a difference between the pilot energy signal and a filtered pilot energy signal.
A method for switching a mode of a receiver, the method comprising:
- extracting a pilot energy signal from an input signal;
- and
- outputting a monophonic signal based on a residual signal that is indicative of a difference between the pilot energy signal and a filtered pilot energy signal.
A receiver comprising:
- an extractor configured to extract a pilot energy signal from an input signal;
- and
- a detector configured to cause the receiver to output a stereophonic signal based on a residual signal indicative of a difference between the pilot energy signal and a filtered pilot energy signal.
A method for switching a mode of a receiver, the method comprising:
- extracting a pilot energy signal from an input signal;
- and
- outputting a stereophonic signal based on a residual signal that is indicative of a difference between the pilot energy signal and a filtered pilot energy signal.
Dependencies are inferred from the claim text.