Title:
SOLID-STATE IMAGE PICKUP DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/009944
Kind Code:
A1
Abstract:
The present invention has: a first semiconductor substrate on which light is incident; a second semiconductor substrate that is layered on a surface located on the opposite side of a surface on which side the light is incident on the first semiconductor substrate; n-number of first photoelectric conversion elements that are disposed on the first semiconductor substrate at a certain interval, and that each generate a first charge signal obtained through photoelectric conversion of the incident light; n-number of first retrieval circuits that are disposed on the first semiconductor substrate in a corresponding manner with the respective n-number of first photoelectric conversion elements, that each accumulate the first charge signal generated by a corresponding one of the first photoelectric conversion elements, and that each output, as a first pixel signal, a signal voltage in accordance with the accumulated first charge signal; a drive circuit that successively drives each of the n-number of first retrieval circuits and causes each thereof to output the first pixel signal; m-number of second photoelectric conversion elements that are disposed on the second semiconductor substrate or the first semiconductor substrate at a certain interval, and that each generate a second charge signal obtained through photoelectric conversion of the incident light; and m-number of second retrieval circuits that each successively output a second pixel signal representing a change in, among the m-number of second photoelectric conversion elements, the second charge signal generated by a corresponding one of the second photoelectric conversion elements, wherein each of the m-number of second retrieval circuits has: a detection circuit that detects a temporal change in the second charge signal generated by the corresponding one of the second photoelectric conversion elements and that outputs, when a change exceeding a predetermined threshold is detected, an event signal representing the direction of the change; and a pixel signal generation circuit that is disposed on the second semiconductor substrate and that outputs a second pixel signal obtained by adding, to the event signal, address information representing the position where the corresponding one of the second photoelectric conversion elements is disposed, wherein n is a natural number equal to or larger than 2 and m is a natural number equal to or larger than 2.
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Inventors:
KONDO TORU (JP)
TAMIYA KOSEI (JP)
WATANABE NOBUYUKI (JP)
TAMIYA KOSEI (JP)
WATANABE NOBUYUKI (JP)
Application Number:
PCT/JP2015/070129
Publication Date:
January 19, 2017
Filing Date:
July 14, 2015
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
H04N5/3745; H04N5/345
Domestic Patent References:
| WO2006022077A1 | 2006-03-02 |
Foreign References:
| JP2015128284A | 2015-07-09 | |||
| JP2010510732A | 2010-04-02 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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