US3612764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television security monitor
Assignee: 3M Co
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Filing: 1969-11-14
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Granted: 1971-10-12
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Expires: 1989-11-14
Abstract
Abstract Apparatus comprising in combination a TV monitor and a closed circuit TV camera including a wide angle lens for receiving and focusing a wide angle image of a first subject matter onto a photosensitive surface of the TV camera and including a telephotolens and a periscopic prism for receiving and focusing an enlarged image of a second subject matter, located substantially the same distance from the TV camera as the first subject matter, onto the photosensitive surface of the TV camera.
Inventors
- 👤 David C Gilkeson
- 👤 Patrick R Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/50; H04N23/55; G; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
187 words
An apparatus for providing simultaneous surveillance of an entryway and identification of a person desiring passage through the entryway, said apparatus comprising in combination: 1. a TV camera for providing a TV signal of two simultaneously received separate images, said camera including a vidicon tube having a front face with an inner photosensitive surface; 2. first lens means secured to said TV camera and having a first focal length for imaging a wide field of view of a first subject matter such as an entryway onto a first area of said photosensitive surface; 3. second lens means secured to said TV camera and having a second focal length for imaging an enlarged image of a second subject matter such as an identification card located substantially the same distance from said camera as said first subject matter onto a second area of said photosensitive surface simultaneously with said first subject matter; and 4. viewing means remote from said TV camera and operatively connected to said TV camera for receiving said TV signal to proVide a real-time image of said first subject matter simultaneously with said second subject matter.
Claim 2
Independent Claim
187 words
An apparatus for providing simultaneous surveillance of an entryway and identification of a person desiring passage through the entryway, said apparatus comprising in combination: 1. a TV camera for providing a TV signal of two simultaneously received separate images, said camera including a vidicon tube having a front face with an inner photosensitive surface; 2. first lens means secured to said TV camera and having a first focal length for imaging a wide field of view of a first subject matter such as an entryway onto a first area of said photosensitive surface; 3. second lens means secured to said TV camera and having a second focal length for imaging an enlarged image of a second subject matter such as an identification card located substantially the same distance from said camera as said first subject matter onto a second area of said photosensitive surface simultaneously with said first subject matter; and 4. viewing means remote from said TV camera and operatively connected to said TV camera for receiving said TV signal to proVide a real-time image of said first subject matter simultaneously with said second subject matter.
Claim 3
Dependent Claim
38 words
first lens means secured to said TV camera and having a first focal length for imaging a wide field of view of a first subject matter such as an entryway onto a first area of said photosensitive surface;
Claim 4
Dependent Claim
38 words
first lens means secured to said TV camera and having a first focal length for imaging a wide field of view of a first subject matter such as an entryway onto a first area of said photosensitive surface;
Claim 5
Dependent Claim
11 words
The apparatus of claim 1 wherein said second lens means includes
Claim 6
Dependent Claim
22 words
a telephotolens, located adjacent to said periscopic means, for focusing said second subject matter through said periscopic means onto said photosensitive surface.
Claim 7
Dependent Claim
22 words
a telephotolens, located adjacent to said periscopic means, for focusing said second subject matter through said periscopic means onto said photosensitive surface.
Claim 8
Dependent Claim
19 words
an exit face located adjacent to said tube face for transmitting said enlarged image to said vidicon tube, and
Claim 9
Dependent Claim
19 words
an exit face located adjacent to said tube face for transmitting said enlarged image to said vidicon tube, and
Claim 10
Dependent Claim
18 words
at least two internal surfaces for reflecting said enlarged image from said first surface to said second surface.
Claim 11
Dependent Claim
18 words
at least two internal surfaces for reflecting said enlarged image from said first surface to said second surface.
Claim 12
Dependent Claim
15 words
The apparatus of claim 2 wherein said periscopic means includes an elongated optical means having
Claim 13
Dependent Claim
57 words
second lens means secured to said TV camera and having a second focal length for imaging an enlarged image of a second subject matter such as an identification card located substantially the same distance from said camera as said first subject matter onto a second area of said photosensitive surface simultaneously with said first subject matter; and
Claim 14
Dependent Claim
57 words
second lens means secured to said TV camera and having a second focal length for imaging an enlarged image of a second subject matter such as an identification card located substantially the same distance from said camera as said first subject matter onto a second area of said photosensitive surface simultaneously with said first subject matter; and
Claim 15
Dependent Claim
35 words
viewing means remote from said TV camera and operatively connected to said TV camera for receiving said TV signal to proVide a real-time image of said first subject matter simultaneously with said second subject matter.
Claim 16
Dependent Claim
35 words
viewing means remote from said TV camera and operatively connected to said TV camera for receiving said TV signal to proVide a real-time image of said first subject matter simultaneously with said second subject matter.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |