US Patent Application 17804476. Analog Channel Equalization and Channel Adaptation simplified abstract

Analog Channel Equalization and Channel Adaptation

Organization Name

Apple Inc.

Inventor(s)

Lizhi Zhong of Sunnyvale CA (US)

Vishal Varma of Fremont CA (US)

Yu Chen of Santa Clara CA (US)

Wenyi Jin of San Jose CA (US)

Analog Channel Equalization and Channel Adaptation - A simplified explanation of the abstract

This abstract first appeared for US patent application 17804476 titled 'Analog Channel Equalization and Channel Adaptation

Simplified Explanation

The patent application describes a receiver circuit that includes mechanisms for analog channel equalization and channel adaptation.

• The receiver circuit has a front-end circuit that filters an incoming signal containing data symbols to generate a filtered signal.
• A sample recovery circuit samples the equalized signal based on the filtered signal to generate recovered data symbols.
• A decision feedback equalization (DFE) circuit generates a feedback signal based on the recovered data symbols.
• A logic circuit adjusts one or more filters in the front-end circuit based on the recovered data symbols.

Original Abstract Submitted

A receiver circuit including mechanisms for analog channel equalization and channel adaptation is disclosed. The receiver includes a front-end circuit configured to generate a filtered signal by performing filtering of an incoming signal that includes a stream of data symbols. A sample recovery circuit configured to sample an equalized signal, based on the filtered signal, to generate a plurality of recovered data symbols. A decision feedback equalization (DFE) circuit configured to generate the feedback signal based on the plurality of recovered data symbols. A logic circuit is configured to cause adjustment to one or more filters in the front-end circuit based on the plurality of recovered data symbols.