Title:
センサー回路
Document Type and Number:
Japanese Patent JP4179474
Kind Code:
B2
Abstract:
An electro-optical sensor senses marks on a sheet (14) which travels longitudinally with respect to a printed circuit board (32), carrying linear arrays of light sources (LEDs) (40) and photodetectors (44) and optics (70) which define zones displaced laterally across the width of a sheet of paper, longitudinal columns of which can contain marks, the presence and absence of which marks is detected by the sensor. The sensor is especially adapted for use in detecting marks which indicate votes on paper ballots in electronic, computerised vote counting apparatus.
Inventors:
The Bislan James M.
Grodebant Scott Earl.
Grodebant Scott Earl.
Application Number:
JP2005020211A
Publication Date:
November 12, 2008
Filing Date:
January 27, 2005
Export Citation:
Assignee:
Dibold Erection Systems, Inc.
International Classes:
G06K7/015; G06K7/10; G06K7/14; G07C13/00; H01L31/12; H03F1/34; H03F3/08
Domestic Patent References:
| JP6231384A |
Attorney, Agent or Firm:
Kenji Sugimura
Kosaku Sugimura
Kiyoshi Kuruma
Shiro Fujitani
Tatsuya Sawada
Kosaku Sugimura
Kiyoshi Kuruma
Shiro Fujitani
Tatsuya Sawada
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