Data storage device comprising search means
US4068301A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1975 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Oct 14, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A gate unit is connected between a central processing unit and a storage means such as a drum or disc memory. A comparator unit is operative to store therein a data search item. In the data search mode, the gate means sequentially gates data items from the storage means into a buffer register having an output connected to an input of the comparator unit. The gate means is controlled to gate a data item in the buffer register to the central processing unit only when the data item corresponds to the search item stored in the comparator unit. The comparator unit may perform AND, OR, magnitude or any other type of comparison which is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.