Circuit responsive to rate change in amplitude of analog electrical signal for use in tire processing apparatus
US4241300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S451/92
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic circuit with an output that may be used, for example, to control a servo system which positions grinders of a tire grinding machine to correct tires with large cleats is disclosed. The electronic circuit is responsive to an analog electrical signal to detect whether or not the rate of change in amplitude of the analog electrical signal equals or exceeds a preselected limit. If the rate of change in amplitude of the analog electrical signal does not equal or exceed the preselected limit, the output of the electronic circuit has a characteristic that is similar to the analog electrical signal. If the rate of change in amplitude of the analog electrical signal equals or exceeds the preselected limit, the output of the electronic circuit preferably remains constant at an amplitude which the analog electrical signal attained prior to the change in amplitude at a rate equal to or in excess of the preselected limit. Broadly, the electronic circuit functions as a slope discrimination system which permits passage of an analog electrical signal if the rate of change in amplitude is below a predetermined rate but blocks passage of the analog electrical signal when the rate of ch…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.