Electronic still camera with imaging operation performed in...

Television – Camera – system and detail – Camera image stabilization

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C348S208100, C348S208120

Reexamination Certificate

active

06816188

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATIONS
This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 11-156550, Jun. 3, 1999, the entire contents of which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
The present invention relates to an electronic still camera, and particularly to a camera shake proof electronic still camera being adapted to detect camera shake and to start an exposure operation at the timing of the camera shake becoming small.
In Jpn. Pat. Appln. KOKAI Publication No. 10-48681, a silver salt camera is disclosed which is adapted to monitor camera shake conditions after the release operation and to start film exposure when the quantity of camera shake has dropped below a predetermined value.
Further, in Jpn. Pat. Appln. KOKAI Publication No. 8-256289, a digital camera estimating the release time at which the result of shake detection falls within a predetermined permissible value and generating an image acquisition signal is disclosed.
However, since accidental camera shakes have no regularity, it is difficult to estimate them, and due to such error factors as response delay of a mechanical shutter, start delay of integration control of an imaging element or the like, a method of estimating camera shake conditions can not always produce a satisfactory result.
BRIEF SUMMARY OF THE INVENTION
Therefore, the object of the present invention is to provide an electronic still camera having an improved camera shake preventing performance without estimating future camera shake conditions and without involving an increase in cost or size.
In order to attain said object, an electronic still camera according to a first aspect of the present invention comprises:
an imaging device imaging an object;
a release section putting an imaging operation of said imaging device into effect;
a camera shake detection circuit detecting the quantity of camera shake during the imaging operation of said imaging device; and
a sequence control circuit evaluating the quantity of camera shake during the imaging operation detected by said camera shake detection circuit in response to a release operation by said release section and reading out an imaging signal when the result of camera shake detection is below a predetermined value.
Further, an electronic still camera according to a second aspect of the present invention comprises:
an imaging control circuit capable of repeating an imaging operation by an imaging device in response to a release operation;
a camera shake detection circuit detecting camera shake conditions in parallel with said imaging operation; and
a sequence control circuit evaluating the quantity of camera shake at a predetermined time of imaging operation by the imaging device, instructing the next imaging operation when the quantity of camera shake is below a predetermined value and terminating the imaging operation in order to read out picture data when the quantity of camera shake is below the predetermined value.
Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter.


REFERENCES:
patent: 5365303 (1994-11-01), Yamasaki et al.
patent: 5790490 (1998-08-01), Satoh et al.
patent: 5905848 (1999-05-01), Yano et al.
patent: 6067420 (2000-05-01), Hara et al.
patent: 8-256289 (1996-10-01), None
patent: 10-48681 (1998-02-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electronic still camera with imaging operation performed in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic still camera with imaging operation performed in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic still camera with imaging operation performed in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3303863

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.