Title:
信号処理装置及び方法、及び撮像装置
Document Type and Number:
Japanese Patent JP6643919
Kind Code:
B2
Abstract:
A signal processing apparatus comprising: an analog-digital converter that uses reference signals having different slopes from each other; a supply unit that supplies analog signals of predetermined different output levels; and a calculation unit that calculates a slope ratio and an offset amount between the plurality of different slopes for correcting a converted digital signal based on digital signals respectively obtained by converting the analog signals of the different output levels using the reference signals. In a case where the conversion is performed using a reference signal with a steeper slope, the supply unit supplies at least one high level analog signal whose level is higher than a case where the conversion is performed using a reference signal with a gentler slope, and a digital signal obtained by converting the high level analog signal is further used when calculating the slope ratio.
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Inventors:
Daisuke Higuchi
Application Number:
JP2016040441A
Publication Date:
February 12, 2020
Filing Date:
March 02, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
H04N5/378; H03M1/10; H03M1/56; H04N5/374
Domestic Patent References:
| JP2013229852A | ||||
| JP2015162751A | ||||
| JP2015164278A |
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu