Document size detection by a prescan having an acceleration regi

Details Document size detection by a prescan having an acceleration regi Document size detection by a prescan having an acceleration regi

1996-08-19

1998-09-08

Nappi, Robert

Facsimile and static presentation processing

Facsimile

Recording apparatus

358504, 399370, G03G 1500

Patent

active

058052941

ABSTRACT:
An image reading unit has a line sensor for reading a document and producing image data. A line counter counts the number of lines that are scanned during a period from a start of reading by the image reading unit until a time point when an edge of the document is read. A ROM stores, in advance, a corresponding relationship between error accumulation values and the numbers of lines. A control section reads out, from the ROM, an error accumulation value corresponding to the number of lines counted by the line counter, and determines the position of the edge of the document in the auxiliary scanning direction by subtracting the readout error accumulation value from a product of the counted number of lines and the auxiliary scanning pitch, thereby detecting a document length in the auxiliary scanning direction.

REFERENCES:
patent: 4963934 (1990-10-01), Nezu
patent: 5198853 (1993-03-01), Ichihara et al.
patent: 5444555 (1995-08-01), Ono
patent: 5477341 (1995-12-01), Obata
patent: 5481365 (1996-01-01), Arimoto

Affiliated with

Also associated with

Rating

Document size detection by a prescan having an acceleration regi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Document size detection by a prescan having an acceleration regi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Document size detection by a prescan having an acceleration regi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1287801