Title:
情報入力装置、情報入出力装置および電子機器
Document Type and Number:
Japanese Patent JP4748266
Kind Code:
B2
Abstract:
An information input device includes an input panel including an illumination light source, a plurality of first light-receiving elements and one or more second light-receiving elements, the illumination light source emitting detection light for detecting an external proximity object, the plurality of first light-receiving elements receiving detection light emitted from the illumination light source and then reflected from the external proximity object, the second light-receiving elements for monitoring the intensity of the detection light; a correction section performing adaptive sensitivity correction on light-receiving signals obtained by the first light-receiving elements through use of an intensity monitor signal of detection light obtained by the second light-receiving element; and an image processing section obtaining object information about one or more of the position, shape and size of the external proximity object based on a picked-up image obtained from the light-receiving signals subjected to the sensitivity correction by the correction section.
Inventors:
Michiru Senda
Yoshiharu Nakajima
Tsutomu Harada
Tsuyoshi Yamanaka
Daisuke Takama
Yoshiharu Nakajima
Tsutomu Harada
Tsuyoshi Yamanaka
Daisuke Takama
Application Number:
JP2009278818A
Publication Date:
August 17, 2011
Filing Date:
December 08, 2009
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06F3/041; G06F3/042
Domestic Patent References:
| JP200718458A | ||||
| JP2007102154A |
Attorney, Agent or Firm:
Yoichiro Fujishima
Yasushi Santanzaki
Masao Hasebe
Takaaki Tanaami
Yasushi Santanzaki
Masao Hasebe
Takaaki Tanaami