Methods of and apparatus for time clock recording and computation and related uses
US4270043A · kind A · utility
46Cited by
9References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Mar 13, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C1/14
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This disclosure is concerned with time-clock recording and computation that, through a novel clock track card and separate clock track and data channel optical reading, in cooperation with microprocessor calculation, storage and control, enables automating employee time and attendance and similar data in a format directly recordable on the card and also directly useable by payroll or other processing computers and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.