Title:
IMAGE PROCESSOR
Document Type and Number:
Japanese Patent JP3623467
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an image processor which can monitor the operation state at all times based on an image to be actually displayed, by making one sheet among image frames a blank frame fitted with a check character for displaying a check character, and outputting an abnormality information signal in case that it does not detect the check character with specified timing.
SOLUTION: A blank frame judger 132 fitted with a check character activates a hit signal S3 in case that it judges that inner image data S1 outputted from an input buffer memory 131 are in blank frames fitted with check characters. A timer 135 receives this signal, and outputs an abnormality information signal to a CPU 11 for image processing. A mask 137 converts the check character of the blank frame fitted with a check character in pixel data in blank frames and outputs them.
Inventors:
Kenichi Mizutani
Application Number:
JP2001218030A
Publication Date:
February 23, 2005
Filing Date:
July 18, 2001
Export Citation:
Assignee:
NEC Microsystems, Inc.
International Classes:
A63F13/55; A63F13/493; G09G5/00; H04N17/00; (IPC1-7): H04N17/00
Domestic Patent References:
| JP2000172442A |
Attorney, Agent or Firm:
Tatsuo Tokumaru