Method of compactly storing digital data
US4849930A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Feb 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T3/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of compactly storing digital data includes the steps of sequentially entering a plurality of digital data entries into a shift register having a plurality of stages and summing successive groups of data entries as they are outputted from the shift register to produce singly compressed data entries that are subsequently entered into a second shift register. Sets of singly compressed data entries which are outputted from the second shift register are again added to obtain doubly compressed data entries which are entered into a third shift register. This process continues until a sufficient number of shift registers have been employed to accommodate all of the expected data entries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.