Facsimile machine storing image data in transmission buffer during memory transmission
US5877868A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3297
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A facsimile machine including an image retrieval unit for retrieving image data from an image of a document; a retrieval buffer memory for temporarily storing the image data retrieved by the image retrieval unit; an encoder for producing encoded data by encoding the image data stored in the retrieval buffer memory; a memory for storing the encoded data when the encoded data is not immediately transmitted after being encoded by the encoder; a transmission buffer for temporarily storing the encoded data before transmission of a facsimile transmission; and a buffer memory usage switching unit for switching use of the retrieval buffer memory and the transmission buffer so that the transmission buffer memory is used as a portion of the retrieval buffer memory when the encoder processes the image data for storage as encoded data in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.