System and method for buffering materials that are produced at two different rates of speed
US5816715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C1/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention utilizes a simple mechanical buffer that will hold material and a two stage software buffering technique that controls the mechanical buffer to act as a First In First Out mechanical mechanism that allows other system events to be triggered off of dynamic thresholds. The two stage software buffering technique consists of a simple software FIFO with rule based logic to control input into a primary queue input and a secondary reserve queue which holds information as soon as it arrives. The decision to move information from the secondary reserve queue into the primary queue is based upon specific rules that are dynamically executed. This permits the creation of a dynamic threshold and allows the reliable triggering of the systems events. The foregoing permits material that is being produced at one fixed speed to be synchronized with material that is produced at variable speeds. The foregoing also permits a first document laser printer that has a constant printing time and a second envelope printer that has a variable print time to be synchronized. Thus, the document may be printed with a laser printer and the envelope printed with an ink jet printer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.