Compressed encoding for repair
US7350119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Dec 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/0401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hierarchical encoding format for coding repairs to devices within a computing system. A device, such as a cache memory, is logically partitioned into a plurality of sub-portions. Various portions of the sub-portions are identifiable as different levels of hierarchy of the device. A first sub-portion may corresponds to a particular cache, a second sub-portion may correspond to a particular way of the cache, and so on. The encoding format comprises a series of bits with a first portion corresponding to a first level of the hierarchy, and a second portion of the bits corresponds to a second level of the hierarchy. Each of the first and second portions of bits are preceded by a different valued bit which serves to identify the hierarchy to which the following bits correspond. A sequence of repairs are encoded as string of bits. The bit which follows a complete repair encoding indicates whether a repair to the currently identified cache is indicated or whether a new cache is targeted by the following repair. Therefore, certain repairs may be encoded without respecifying the entire hierarchy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.