Memory device and device and method for detecting motion vector

Details Memory device and device and method for detecting motion vector Memory device and device and method for detecting motion vector

2009-09-14

2011-12-06

Senfi, Behrooz (Department: 2482)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C382S236000

Reexamination Certificate

active

08073058

ABSTRACT:
This invention relates to a memory device and the like that are preferably applied to a case where motion vector is detected using a block matching. Pixel data of a first frame (a reference frame) is stored in a unit A of memory cell array portion20ain straight binary format. Pixel data of a second frame (a search frame) is stored in a unit B of memory cell array portion20bin two's complement format. The units A and B have a plurality of memory cells, respectively. Word lines WL related to the pixel data of the first and second frames are simultaneously activated so that charges accumulated in capacitors of each of the memory cells can be combined along one bit line BL. A/D converter53outputs a digital signal (absolute difference value) having a value that corresponds to a total amount of charges. When reading the pixel data, a subtraction and a conversion into the absolute difference value are simultaneously performed.

REFERENCES:
patent: 5134582 (1992-07-01), Ishii
patent: 5926057 (1999-07-01), Ogawa et al.
patent: 7477289 (2009-01-01), Kondo et al.
patent: 7573939 (2009-08-01), Kondo et al.
patent: 2003/0053544 (2003-03-01), Yasunari et al.
patent: 2009/0154566 (2009-06-01), Kondo et al.
patent: 2010/0026903 (2010-02-01), Tetsukawa et al.
patent: 0 469 393 (1991-07-01), None
patent: 0 469 393 (1991-07-01), None
patent: 0 725 356 (1996-08-01), None
patent: 0 725 356 (1996-08-01), None
patent: 58-155592 (1983-09-01), None
patent: 7-203457 (1995-08-01), None
patent: 8-31168 (1996-02-01), None
patent: 8-204567 (1996-08-01), None
patent: 9-244875 (1997-09-01), None
patent: 11-177892 (1999-07-01), None
patent: 2000-035878 (2000-02-01), None
patent: 2000-333183 (2000-11-01), None
patent: 2003-109380 (2003-04-01), None
patent: 2003-208303 (2003-07-01), None
patent: 2003-209846 (2003-07-01), None
patent: 2003-257183 (2003-09-01), None
patent: 2003-289545 (2003-10-01), None
M. Tartagni, et al., “A Low-Power Block-Matching Cell for Video Compression”, Analog Integrated Circuits and Signal Processing, vol. 27, No. 3, XP-002568279, Jul. 1, 2001, p. 261-273.
M. Tartagni, et al., “A Block-Matching Module for Video Compression”, IEEE Symposium on Low Power Electronics, Oct. 10, 1994, pp. 24-25.

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