Image analysis – Image sensing
Patent
1998-03-25
2000-07-11
Couso, Jose L.
Image analysis
Image sensing
382317, G06K 700
Patent
active
060884908
ABSTRACT:
A two-dimensional information processing apparatus comprises a plurality of unit cell circuits arranged in a tow-dimensional matrix and each including a detector for detecting information as predetermined part of two-dimensional information, a storage circuit for storing the information detected by the detector, and a signal processing circuit for generating a pulse width modulation signal which has a pulse width corresponding to the information detected or stored, a plurality of address lines extending in a direction of columns of the matrix, and each connected to those unit cell circuits which are included in a corresponding one of the columns, a plurality of bus lines extending in a direction of rows of the matrix, and each connected to those unit cell circuits which are included in a corresponding one of the rows, means for selecting at least one of the address lines and supplying, through the selected address line, a control signal for generating a pulse width modulation signal to those unit cell circuits which are included in the selected bus line, and means for selecting at least one of the bus lines and reading, through the selected bus line, at least one pulse width modulation signal. The control signal includes a ramp signal, and the pulse modulation signal rises when the voltage of the ramp signal starts to increase, and falls when the voltage of the ramp signal is identical to a voltage determined on the basis of the information detected by the detector.
REFERENCES:
patent: 4905143 (1990-02-01), Takahashi et al.
patent: 5166539 (1992-11-01), Uchimura et al.
patent: 5321639 (1994-06-01), Krishnamoorthy et al.
Atsushi Iwata, et al., "A concept of Analog-Digital Merged Circuit Architecture for Future VLSI's", IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E79-A, No. 2, Feb. 1996, pp. 145-157.
Iwata Atsushi
Nagata Makoto
Couso Jose L.
Do Anh Hong
President of Hiroshima University
LandOfFree
Apparatus for processing two-dimensional information does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for processing two-dimensional information, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for processing two-dimensional information will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-550262