Cartridge with data memory system and method regarding same
US5318370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Nov 17, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J17/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal printing machine is provided with a releasably attachable tape cassette which holds the tape on which an image is placed. The cassette includes a memory circuit component which includes at least 2 separate memory areas. The first area contains a first value which is read by the printing machine; the second area contains a second value which is placed on the cassette as a result of the first value having an algorithm applied to it. When the cassette is installed in the machine, the machine applies the algorithm to the first value and checks this against the second value. This process is followed in order to see it the cassette contains a compatible tape for that machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.