Title:
センサのダイナミックレンジを差分拡大する方法及びシステム
Document Type and Number:
Japanese Patent JP2006523074
Kind Code:
A
Abstract:
Effective differential dynamic range in a differential pixel detector is increased by avoiding saturation effects due to common mode contribution in optical energy to be detected. Photocurrent generated by each photodetector pair is directly integrated by an associated capacitor over an integration time T. Within time T, before either integrated capacitor voltage reaches Vsat for the photodetector, at least one of the capacitors is reset to a voltage such that the desired differential detector signal is still determinable. Reset may be generated externally or internally to the differential pixel detector.
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Inventors:
Bungee Cyrus
Yarshin Harkan
Liu Shin Chiao
Ero Glue Ender Tunk
Yarshin Harkan
Liu Shin Chiao
Ero Glue Ender Tunk
Application Number:
JP2006509960A
Publication Date:
October 05, 2006
Filing Date:
April 12, 2004
Export Citation:
Assignee:
Kanesta Incorporated
International Classes:
G01C3/08; G01S7/4863; G01S17/48; G01S17/894; H01J40/14; H01L27/00; H01L27/146; H04N1/028; H04N5/3745; G01S7/481; G01S17/10
Domestic Patent References:
| JPH06197286A | 1994-07-15 | |||
| JP2000299821A | 2000-10-24 |
Foreign References:
| WO2002049339A2 | 2002-06-20 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda