Recording apparatus having a text processing mode using a thresh

Details Recording apparatus having a text processing mode using a thresh Recording apparatus having a text processing mode using a thresh

1996-05-28

1997-09-16

Rogers, Scott A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358462, 358465, 358296, H04N 1403, H04N 1407

Patent

active

056686439

ABSTRACT:
A reading apparatus and a recording apparatus having the reading apparatus which can reduce storage capacity for storing read data and, because the read data processing modes can be switched according to the type of documents to be processed, perform fast and proper document reading operation. If a document to be processed is an image document, the controller operates in the image processing mode in which M pieces of read data are sampled out of N pieces of read data and a mean value of the M pieces of read data is calculated to be stored in the memory as gradation data of one pixel. If the document is a text document, the controller operates in the text processing mode in which read data of one read unit of the image scanner is digitized by a threshold to be stored in the memory. Switching between these two processing modes is performed by the conversion processing operator section in the controller.

REFERENCES:
patent: 4668995 (1987-05-01), Chen et al.

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