Patent US1992366A successfully refreshed from Google Patents.
US5446285A
Expired / Lapsed
US
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Human body sensing device and method for fabricating the same
Assignee: LG Electronics Inc
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Filing: 1993-12-21
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Granted: 1995-08-29
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Expires: 2013-12-21
Abstract
Abstract A human body sensing device capable of sensing not only the presence of the human body, but, also the human body's position. The device includes a lens unit, for dividing a room to be monitored into a plurality of lateral and vertical zones and projecting an infrared ray emitted from an object present in one of the zones, a filter unit, for filtering only an infrared ray emitted from the human body from infrared rays received from the lens unit, and an infrared sensor unit for sensing the human body's position, based on the infrared ray received from the filter unit.
Inventors
- 👤 Jun R. Choi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:47
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/18; G08B13/189; G08B13/19; G08B13/193; H; H10; H10F; H10F39/00; H10F39/10; H10N; H10N15/00; H10N15/10; Y; Y10; Y10S; Y10S250/00; Y10S250/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
154 words
A human body sensing device comprising: a lens unit for dividing a room to be monitored into a plurality of lateral and vertical zones and projecting infrared rays emitted within said zones; a filter unit for transmitting infrared rays emitted from a living human being in one or more of said zones and blocking rays emitted at other wavelengths; an infrared sensor unit for sensing the living human being's position, based on the infrared rays received from said filter unit; wherein said infrared sensor unit comprises a substrate, a first oxide film formed on said substrate in first regions forming a two-dimensional array, a first insulating film formed on the oxide film in said first regions, a lower electrode formed on said first insulating film in said first regions, a dielectric film formed on the insulating film in said first regions, and an upper electrode formed on said dielectric film in said first regions.
Claim 2
Dependent Claim
154 words
A human body sensing device comprising: a lens unit for dividing a room to be monitored into a plurality of lateral and vertical zones and projecting infrared rays emitted within said zones; a filter unit for transmitting infrared rays emitted from a living human being in one or more of said zones and blocking rays emitted at other wavelengths; an infrared sensor unit for sensing the living human being's position, based on the infrared rays received from said filter unit; wherein said infrared sensor unit comprises a substrate, a first oxide film formed on said substrate in first regions forming a two-dimensional array, a first insulating film formed on the oxide film in said first regions, a lower electrode formed on said first insulating film in said first regions, a dielectric film formed on the insulating film in said first regions, and an upper electrode formed on said dielectric film in said first regions.
Claim 3
Dependent Claim
18 words
The device in accordance with claim 1, wherein said lens unit comprises a plurality of cylindrical Fresnel lenses.
Claim 4
Dependent Claim
28 words
The device in accordance with claim 1, wherein said lens unit is arranged such that i% has a focus on the back surface of said infrared sensor unit.
Claim 5
Dependent Claim
39 words
The device in accordance with claim 1, wherein said infrared sensor unit further comprises another oxide film interposed between said dielectric film and said upper electrode and adapted to prevent a current leakage due to an electric charge difference.
Claim 6
Dependent Claim
36 words
The device in accordance with claim 1, wherein said infrared sensor unit further comprises another oxide film formed in second regions lying between said first regions, and adapted to prevent heat flow between said first regions.
Claim 7
Dependent Claim
25 words
The device of claim 5, wherein said oxide film formed in said second regions is thicker than said first oxide film in the first regions.
Claim 8
Dependent Claim
19 words
The device of claim 1, wherein said filter unit transmits wavelengths in the range from 7 to 9 microns.
Claim 9
Dependent Claim
141 words
A human body sensing device comprising: a substrate; an infrared array sensor formed on said substrate for sensing a position of a human body in a space, wherein said infrared array sensor comprises a plurality of unit sensors each of which senses incident infrared beams emitted from said space, respectively; a cylindrical Fresnel lens for dividing said space into a plurality of zones and focusing the infrared beams emitted from each of said plurality of zones into each of said plurality of unit sensors, respectively, wherein the number of said zones equals the number of said unit sensors.; a filter for filtering only an infrared beam emitted from the human body from a beam focused by said cylindrical Fresnel lens; and a plurality of insulating films which are formed between each of said unit sensors for preventing heat loss and interference.
Claim 10
Dependent Claim
141 words
A human body sensing device comprising: a substrate; an infrared array sensor formed on said substrate for sensing a position of a human body in a space, wherein said infrared array sensor comprises a plurality of unit sensors each of which senses incident infrared beams emitted from said space, respectively; a cylindrical Fresnel lens for dividing said space into a plurality of zones and focusing the infrared beams emitted from each of said plurality of zones into each of said plurality of unit sensors, respectively, wherein the number of said zones equals the number of said unit sensors.; a filter for filtering only an infrared beam emitted from the human body from a beam focused by said cylindrical Fresnel lens; and a plurality of insulating films which are formed between each of said unit sensors for preventing heat loss and interference.
Claim 11
Dependent Claim
86 words
A human body sensing device in accordance with claim 8, said infrared sensor having a plurality of unit sensors each of which comprises; first insulating film formed on said substrate, a second insulating film formed on said first insulating film, a lower electrode formed on said second insulating film, a dielectric film formed on said lower electrode, a third insulating film formed on said dielectric film, an upper electrode formed on said third insulating film and wherein a back surface of said substrate is anisotropically etched.
Claim 12
Dependent Claim
21 words
A human body sensing device in accordance with claim 9, wherein said first and second insulating films are of silicon oxide.
Claim 13
Dependent Claim
18 words
A human body sensing device in accordance with claim 8, wherein said insulating films are of silicon oxide.
Claim 14
Dependent Claim
19 words
A human body sensing device in accordance with claim 8, wherein said substrate is silicon heavily doped by boron.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-08-28 | 1999-02-27 | 1999-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-28 | 2003-02-27 | 2003-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-28 | 2007-02-27 | 2007-08-29 | $7700.00 | Window Closed / Lapsed |