US4589031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video camera
Assignee: Canon Inc
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Filing: 1983-06-22
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Granted: 1986-05-13
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Expires: 2003-06-22
Abstract
Abstract Disclosed is a video camera in which the field of view of an automatic focusing device is displayed on an electronic view finder, and the displayed field of view is adjustable in accordance with the object distance and/or the zooming state of the lens system.
Inventors
- 👤 Sadahiko Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:21
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/60; H04N23/67; H04N23/671; H04N23/63; H04N23/633; H04N23/635
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
164 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means; and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said focus detecting means being arranged to produce a distance signal indicative of a distance to the object, and said adjusting means being responsive to said distance signal and being arranged to adjust said pattern signal in accordance with the object distance.
Claim 2
Dependent Claim
164 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means; and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said focus detecting means being arranged to produce a distance signal indicative of a distance to the object, and said adjusting means being responsive to said distance signal and being arranged to adjust said pattern signal in accordance with the object distance.
Claim 3
Dependent Claim
150 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means ;and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said adjusting means being operatively associated with said lens system and being arranged to adjust said pattern signal in accordance with the adjusted position of the lens system.
Claim 4
Dependent Claim
150 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means ;and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said adjusting means being operatively associated with said lens system and being arranged to adjust said pattern signal in accordance with the adjusted position of the lens system.
Claim 5
Dependent Claim
45 words
A video camera according to claim 1, wherein said lens system includes zoom effecting means, and said adjusting means is operatively associated with said zoom effecting means and is arranged to adjust said pattern signal in accordance with the zooming condition of the lens system.
Claim 6
Dependent Claim
45 words
A video camera according to claim 2, wherein said lens system includes zoom effecting means, and said adjusting means is operatively associated with said zoom effecting means and is arranged to adjust said pattern signal in accordance with the zooming condition of the lens system.
Claim 7
Dependent Claim
159 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means; and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said lens system including zoom effecting means, and said adjusting means being operatively associated wtih said zoom effecting means and being arranged to adjust said pattern signal in accordance with the zooming condition of the lens system.
Claim 8
Dependent Claim
159 words
A video camera comprising: (A) image pick-up means including a focus adjustable lens system and for producing a video signal representative of an image of an object, said lens system defining an optical path; (B) focus detecting means for detecting the focus of said lens system relative to said object, said detecting means having a field of view; (C) pattern generating means for generating a pattern signal indicative of said field of view of said focus detecting means; (D) display means responsive to said video signal and said pattern signal for displaying the object image and the field of view of the focus detecting means; and (E) adjusting means for adjusting said pattern signal generated from said pattern generating means; and (F) said lens system including zoom effecting means, and said adjusting means being operatively associated wtih said zoom effecting means and being arranged to adjust said pattern signal in accordance with the zooming condition of the lens system.
Claim 9
Dependent Claim
26 words
A video camera according to claim 1, wherein said detecting means is located outside of the optical path of said lens system to sense the object.
Claim 10
Dependent Claim
25 words
A video camera according to claim 2, wherein said detecting means is located outside of the path of said lens system to sense the object.
Claim 11
Dependent Claim
25 words
A video camera according to claim 3, wherein said detecting means is located outside of the path of said lens system to sense the object.
Claim 12
Dependent Claim
25 words
A video camera according to claim 4, wherein said detecting means is located outside of the path of said lens system to sense the object.
Claim 13
Dependent Claim
25 words
A video camera according to claim 5, wherein said detecting means is located outside of the path of said lens system to sense the object.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |