18402011. Analog Channel Equalization and Channel Adaptation simplified abstract (Apple Inc.)

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 18402011 titled 'Analog Channel Equalization and Channel Adaptation

Simplified Explanation

The patent application describes a receiver circuit with mechanisms for analog channel equalization and channel adaptation. Here is a simplified explanation of the abstract:

• Front-end circuit filters incoming signal to generate a filtered signal.
• Sample recovery circuit samples equalized signal to recover data symbols.
• Decision feedback equalization (DFE) circuit generates feedback signal based on recovered data symbols.
• Logic circuit adjusts filters in the front-end circuit based on the recovered data symbols.

1. 1. 1. Potential Applications

This technology can be applied in communication systems, such as wireless communication, where signal equalization and adaptation are crucial for data transmission.

1. 1. 1. Problems Solved

This technology solves the problem of signal distortion and interference in communication channels, ensuring accurate data reception and transmission.

1. 1. 1. Benefits

The receiver circuit improves the quality and reliability of data transmission by equalizing the channel and adapting to changing channel conditions.

1. 1. 1. Potential Commercial Applications

Potential commercial applications include telecommunications equipment, networking devices, and any system requiring reliable data transmission over analog channels.

1. 1. 1. Possible Prior Art

One possible prior art for this technology could be existing receiver circuits with basic equalization capabilities but lacking the advanced channel adaptation features described in this patent application.

1. 1. 1. 1. Unanswered Questions
         2. How does this receiver circuit compare to existing equalization and adaptation techniques in terms of performance and complexity?

This question can be answered through comparative testing and analysis of the receiver circuit against other similar technologies.

1. 1. 1. 1. What are the potential limitations or challenges in implementing this receiver circuit in practical communication systems?

This question can be addressed through feasibility studies and real-world deployment trials to identify any obstacles or constraints in using this technology.

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.