Data re-encoding for energy-efficient data transfer in a computing device

US11636057B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Engin Ipek · Pittsford, US
• Bohuslav Rychlik · San Diego, US
• George Patsilaras · San Diego, US
• Prajakt Kulkarni · San Diego, US
• Can Hankendi · San Diego, US
• Fahad Ali · San Diego, US
• Jeffrey Gemar · San Diego, US
• Matthew Severson · Austin, US

Key dates

• Filing date: Jul 30, 2021
• Grant date: Apr 25, 2023
• Expiry date: Jul 30, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02D10/00
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

The energy consumed by data transfer in a computing device may be reduced by transferring data that has been encoded in a manner that reduces the number of one “1” data values, the number of signal level transitions, or both. A data destination component of the computing device may receive data encoded in such a manner from a data source component of the computing device over a data communication interconnect, such as an off-chip interconnect. The data may be encoded using minimum Hamming weight encoding, which reduces the number of one “1” data values. The received data may be decoded using minimum Hamming weight decoding. For other computing devices, the data may be encoded using maximum Hamming weight encoding, which increases the number of one “1” data values while reducing the number of zero “0” values, if reducing the number of zero values reduces energy consumption.