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US 5,212,599 AGranted
Electronic camera for synchronous recording of still pictures on rotating record medium
AssigneeCanon Kabushiki Kaisha
InventorsShinji Sakai, Takashi Kawabata
Life of this patent
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Abstract
An electronic camera for synchronous recording of still pictures on a rotating record bearing medium in which initialization of an image pickup element and release of a shutter are carried out in response to a release actuating signal, and, after the shutter is closed, the photoelectric information of the image pickup element is synchronously recorded on the medium, whereby the performance of an anti-blooming control for the image pickup element is limited in between the initialization of the image pickup element and the start of the synchronous recording.
Claims47
An apparatus comprising:
- (a) means for converting an image into an electrical signal;
- (b) drive means for driving a recording medium for recording said electrical signal to move periodically, said means producing a first signal when recording medium motion reaches at least a prescribed speed, and a second signal each time when the phase of recording medium motion takes a prescribed state;
- (c) resetting means for resetting said convert means to an initial cleared state in response to said first signal;
- (d) means for reading out said electrical signal from said convert means in synchronism with said second signal after said convert means has been reset to said initial state and said image has been converted to said electrical signal.
1 more element
An apparatus comprising;
- (a) means for converting an image into an electrical signal;
- (b) first control means for controlling the image incident on said convert means, said control means having a first state in which said image is conducted to said convert means and a second state in which it is not conducted to said convert means;
- (c) drive means for driving a recording medium for recording said electrical signal so as to move periodically, said drive means producing a first signal each time the phase of recording medium motion becomes a prescribed state, and for producing a second signal when recording medium periodic motion has reached at least a predetermined speed;
- (d) second control means for setting said convert means to an initial cleared state as said first control means changes from said second state to said first state, and for controlling said convert means so as to read out said electrical signal in response to said first signal produced after said first control means has changed from said first state to said second state;
- and
- (e) means for prohibiting said first control means from changing over from said second state to said first state until said second signal is produced.
3 more elements
An apparatus comprising:
- (a) means for converting an image into an electrical signal;
- (b) means for generating a trigger signal for recording said electrical signal converted by said convert means;
- (c) means for driving a recording medium for recording said electrical signal so as to move periodically, said means producing a first signal when recording medium motion has reached at least a prescribed speed, and a second signal when the phase of recording medium motion becomes a prescribed state;
- (d) first control means for controlling the image entering said convert means, said first control means having a first state in which said image is conducted to said convert means and a second state in which it is not conducted to said convert means;
- and
- (e) second control means responsive to said trigger signal for actuating said driving means and controlling in such a manner that said first control means is changed over from the second state to the first state in response to said first signal generated by said driving means and after said first control means has then been returned from the first state to the second state, said electrical signal is read out in synchronism with said second signal.
3 more elements
An apparatus comprising:
- (a) means exposable for converting an image into an electrical signal and for accumulating charge;
- (b) drive means for driving a recording medium for recording said electrical signal to move periodically, said drive means producing a first signal representative of the fact that recording medium motion reaches at least a prescribed speed;
- and
- (c) resetting means for resetting said convert means to an initial cleared state after said first signal has been produced by removing from said convert means an unnecessary charge accumulated before an exposure of said convert means.
1 more element
An apparatus comprising:
- (a) means exposable for converting an image into an electrical signal and for accumulating charge;
- (b) drive means for driving a recording medium for recording said electrical signal to move periodically, said drive means producing a first signal representative of the fact that recording medium motion reaches a prescribed speed;
- (c) first control means for controlling the image incident on said convert means, said control means having a first state in which said image is conducted to said convert means and a second state in which it is not conducted to said convert means;
- (d) means for prohibiting said first control means from changing over from said second state to said first state until said first signal is produced;
- and
- (e) resetting means for making said convert means an initial state after said first signal is produced by removing from said convert means an unnecessary charge accumulated before an exposure of said convert means.
3 more elements
An apparatus comprising:
- (a) means for converting an image into an electrical signal;
- (b) drive means for driving a recording medium for recording said electrical signal to move periodically in response to periodical pulses, said drive means producing a first signal representative of the fact that recording medium motion reaches a prescribed speed;
- (c) periodical pulse generating means for generating said periodical pulses for driving said convert means and said drive means;
- and
- (d) resetting means for resetting said periodical pulse generating means in response to said first signal.
2 more elements
An image sensing apparatus, comprising:
- (a) converting means exposable for converting an image into an electrical signal;
- (b) drive means for driving a recording medium for recording said electrical signal to move periodically and for producing a periodical signal corresponding to the periodical motion of said medium;
- and
- (c) controlling means for controlling said converting means, said controlling means being arranged to reset said converting means before exposure thereof, in response to an operational state of said drive means, and to read out said electrical signal in synchronism with said periodical signal after exposure.
1 more element
Dependencies are inferred from the claim text.