Work machine
US10992376B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jan 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K13/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The object is to provide a technique for predicting a time for performing maintenance of optical communication in an electronic component mounting device in which optical communication is performed. A controller in a time prediction process reads the voltage of an electrical signal from a storage section, calculates the slope with respect to time of the read voltage, and based on the amount of decrease with time of the voltage outputted from an AD converter, the time at which the voltage becomes to be equal to or less than a threshold value is calculated. The time at which the output value of the optical signal outputted from the mounting head will become equal to or less than the threshold value is then estimated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.