Micron technology, inc. (20240323062). Equalization for Pulse-Amplitude Modulation simplified abstract
Contents
Equalization for Pulse-Amplitude Modulation
Organization Name
Inventor(s)
Kang-Yong Kim of Boise ID (US)
Timothy M. Hollis of Meridian ID (US)
Dong Soon Lim of Boise ID (US)
Equalization for Pulse-Amplitude Modulation - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240323062 titled 'Equalization for Pulse-Amplitude Modulation
The patent application focuses on equalization techniques for pulse-amplitude modulation (PAM) signaling to improve symbol decoding reliability in high-frequency bus systems. Decision-feedback equalization (DFE) is commonly used for this purpose but can be costly in terms of chip area and power consumption. The innovation proposes applying DFE selectively to a subset of voltage level determination paths in a receiver, such as coupling a DFE circuit between an output and an input of a middle slicer in PAM4 signaling. By compressing the middle eye of the PAM4 signal, symbol detection reliability can be maintained with fewer DFE circuits, allowing for tailored encoding schemes, impedance terminations, and reference voltage levels.
- Selective application of decision-feedback equalization (DFE) to improve symbol decoding reliability in high-frequency bus systems
- Cost-effective approach by applying DFE to a subset of voltage level determination paths in a receiver
- Compression of the middle eye of the PAM4 signal to maintain symbol detection reliability with fewer DFE circuits
- Tailoring encoding schemes, impedance terminations, and reference voltage levels based on the compressed signal
- Enhanced equalization techniques for improved performance in high-speed data transmission systems
Potential Applications: - High-speed data transmission systems - Communication networks - Signal processing applications
Problems Solved: - Improving symbol decoding reliability in high-frequency bus systems - Reducing chip area and power consumption associated with decision-feedback equalization (DFE) - Enhancing signal integrity in high-speed data transmission systems
Benefits: - Improved symbol detection reliability - Cost-effective equalization techniques - Enhanced performance in high-frequency bus systems
Commercial Applications: Title: Cost-Effective Equalization Techniques for High-Speed Data Transmission Systems This technology can be utilized in high-speed communication networks, data centers, and signal processing applications to enhance signal integrity and reliability in high-frequency bus systems.
Questions about Equalization Techniques for PAM Signaling: 1. How does the selective application of decision-feedback equalization (DFE) improve symbol decoding reliability in high-frequency bus systems? 2. What are the potential commercial applications of this cost-effective equalization technique for high-speed data transmission systems?
Original Abstract Submitted
described apparatuses and methods are directed to equalization with pulse-amplitude modulation (pam) signaling. as bus frequencies have increased, the time for correctly transitioning between voltage levels has decreased, which can lead to errors. symbol decoding reliability can be improved with equalization, like with decision-feedback equalization (dfe). dfe, however, can be expensive for chip area and power usage. therefore, instead of applying dfe to all voltage level determination paths in a receiver, dfe can be applied to a subset of such determination paths. with pam4 signaling, for example, a dfe circuit can be coupled between an output and an input of a middle slicer. in some cases, symbol detection reliability can be maintained even with fewer dfe circuits by compressing a middle eye of the pam4 signal. the other two eyes thus have additional headroom for expansion. encoding schemes, impedance terminations, or reference voltage levels can be tailored accordingly.
