Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1987-02-17
1991-02-19
Adams, Russell E.
Facsimile and static presentation processing
Facsimile
Recording apparatus
354404, H04N 5232
Patent
active
049949195
ABSTRACT:
A camera for recording television, photographic or cinematographic images includes an automatic focus-setting device. Information for this device is obtained with the aid of two optical paths having different path lengths present in an optical lens system placed in front of an opto-electronic sensor in the form of a charge transfer device comprising a pick-up member, a storage member and a shift register member. After a signal comparison of signals obtained during focus information recording periods the focus is set until an optimum signal correlation is the result. To realize a camera with both an undisturbed scene recording as an automatic focusing while using one and the same sensor for this purpose it operates consecutively during a television field period (TV) with a scene recording period (TVS), a scene information transfer period (TFV) for the transfer of information between the pick-up member and the storage member, at least one focus information recording period (TAS or TBS, respectively), the first and second optical paths being present in the optical lens system and a focus information transfer period (TFA or TFB, respectively) for the transfer of information between the pick-up member and the storage member.
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Izushi Munehisa
Jaspers Cornelis A. M.
Adams Russell E.
Botjer William L.
U.S. Philips Corp.
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