Facsimile apparatus and control method of facsimile apparatus
US10178271B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jan 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A facsimile apparatus includes a storage unit, a first detection unit, and a second detection unit. The storage unit stores a parameter based on a connection standard of a telephone-line connected to the facsimile apparatus, and an apparatus direct-current resistance of the facsimile apparatus. The first detection unit detects a first voltage that is a voltage at a line-open time of a telephone line connected to the facsimile apparatus. The second detection unit detects a second voltage that is a voltage at a line-capture time of the telephone line. By using the first voltage, the second voltage, the parameter, and the apparatus direct-current resistance, a voltage to be a threshold for determination of line capture is determined. By using a voltage detected from the telephone line and the voltage to be the threshold determined by the first determination unit, whether the telephone line is captured is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.