Apparatus for searching compressed data file
US4064489A · kind A · utility
25Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1975 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Aug 6, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99931
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A data processing system in which a sequence of records, each record containing data items of various types, is processed. The system is operable in a "remember" mode in which, if a data item of a particular type is not present in a particular record, the result of the last time that type of data item was processed is used as the result for the current record. This permits data files to be stored in a compressed form in which repeated data items are omitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.