The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 06, 2019

Filed:

Jun. 26, 2018
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Kazunori Togashi, Toride, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); H04N 1/401 (2006.01); H03M 1/12 (2006.01); H04N 1/03 (2006.01); H04N 5/369 (2011.01); H04N 5/376 (2011.01); H04N 5/378 (2011.01); H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
H04N 1/401 (2013.01); H03M 1/1245 (2013.01); H04N 1/03 (2013.01); H04N 5/23229 (2013.01); H04N 5/3692 (2013.01); H04N 5/378 (2013.01); H04N 5/3765 (2013.01); H04N 2201/0081 (2013.01); H04N 2201/0094 (2013.01);
Abstract

Provided is a signal processing apparatus that enables an image reading apparatus to perform higher speed processing of reading a document image. A signal processing unit is configured to convert six analog image signals obtained from a line sensor into six first signals, each of which is a 10-bit digital image signal, respectively, and to write the six first signals into a RAM at a first speed that is the same as a frequency of the analog image signals. The signal processing unit is configured to cause a serialization unit to read out from the RAM the six first signals as four second signals, each of which is a 10-bit digital image signal, at a second speed higher than the first speed, respectively, and to serialize the four second signals to generate six 7-bit serial signals.


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