Television – Camera – system and detail – Solid-state image sensor
Reexamination Certificate
2006-04-04
2006-04-04
Moe, Aung (Department: 2685)
Television
Camera, system and detail
Solid-state image sensor
C348S319000, C348S370000
Reexamination Certificate
active
07023481
ABSTRACT:
In a solid state imaging apparatus of the present invention, first and second charge-coupled devices (CCDs)336A and336B are prepared as two charge accumulation circuits for one photodiode330. The first and second CCDs336A and336B additionally accumulate charges during an on-state and an off-state of a light emitting source in the imaging apparatus, respectively. After the additional charge accumulation, the additionally accumulated charges in the first and second CCDs336A and336B are fed to first and second charge transfer CCD registers333A and333B, respectively. The charges in the first and second charge transfer CCD registers333A and333B are shifted in sequence to thereby output first and second charge signals, respectively. A differential amplifier334of the imaging apparatus calculates and outputs a differential signal between the first charge signal and the charge second signal. By using the imaging apparatus of the present invention, the effect, e.g., backlight and/or over exposure effect, due to background light inputted to the photodiode330with almost equal intensity during the on-state and the off-state thereof is removed to thereby obtain a clear image of a target subject formed corresponding to the radiation light from the light emitting source.
REFERENCES:
patent: 3940602 (1976-02-01), Lagnado et al.
patent: 4336557 (1982-06-01), Koch
patent: 4490036 (1984-12-01), Anagnostopoulos
patent: 5025318 (1991-06-01), Nagura
patent: 5153731 (1992-10-01), Nagasaki et al.
patent: 5398060 (1995-03-01), Leacock et al.
patent: 5585652 (1996-12-01), Kamasz et al.
patent: 5587576 (1996-12-01), Maki
patent: 5917546 (1999-06-01), Fukui
patent: 5946102 (1999-08-01), Holcomb et al.
patent: 6278490 (2001-08-01), Fukuda et al.
patent: 0685813 (1995-12-01), None
T. Spirig, P. Seitz, O. Vietze and F. Heitger, “The Lock-In CCD—Two-Dimensional Synchronous Detection of Light” 8106 IEEE Journal of Quantum Electronics, IEEE, Sep. 1, 1995, vol. 31, No. 9, pp. 1705-1708.
T. Spirig, P. Seitz and O. Vietze, “Smart CCD Image Sensors for Optical Metrology and Machine Vision” Advanced Technologies Intelligent Vision, IEEE, Oct. 6, 1995, pp. 11-14.
Watanabe Kunihiro
Yamamoto Takeshi
Katten Muchin & Rosenman LLP
Moe Aung
Taiyo Yuden Co. Ltd.
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