Recording method in a facsimile receiver
US4521813A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1982 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Dec 2, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/17
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A line by image signal in a facsimile transmission is transmitted at a random time interval. A minimum time interval (highest record speed) is determined by a transmission ability of a transmission line. A paper feed drive motor requires a considerable time to accelerate from a stop state to the highest record speed. The image signal transmitted during the acceleration time is stored in a memory to prevent an error in the recording and the paper feed drive motor is controlled by a speed pattern determined by the number of lines stored in the memory. Thus, a response ability of the drive motor is compensated and a high response is attained. The memory needs only a capacity sufficient to store the data before the highest record speed is reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.