The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2018
Filed:
Sep. 28, 2017
Qualcomm Incorporated, San Diego, CA (US);
Colin Beaton Verrilli, Apex, NC (US);
Mattheus Cornelis Antonius Adrianus Heddes, Raleigh, NC (US);
Natarajan Vaidhyanathan, Carrboro, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Providing memory bandwidth compression using compression indicator (CI) hint directories in a central processing unit (CPU)-based system is disclosed. In this regard, a compressed memory controller provides multiple CI hint directory entries, each providing a plurality of CI hints. The compressed memory controller receives a memory write request comprising write data, determines a compression pattern for the write data, and generates a CI for the write data based on the compression pattern. The compressed memory controller writes the write data to the memory line, and writes the generated CI into one or more ECC bits of the memory line. In parallel, the compressed memory controller determines whether the physical address corresponds to a CI hint directory entry, and, if so, a CI hint of the CI hint directory entry corresponding to the physical address is updated based on the generated CI.