US4815657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room temperature controlling apparatus used for an air conditioner
Assignee: Daikin Industries Ltd
•
Filing: 1987-05-28
•
Granted: 1989-03-28
•
Expires: 2007-05-28
Abstract
Abstract A room temperature controlling apparatus used for an air conditioner includes a thermistor for detecting the temperature in a room, a variable resistor for setting a reference temperature for said room, a pyroelectric infrared sensor for detecting movement of a person in said room and outputting signals representative of the detection of the movement of said person, a room temperature modification circuit for modifying the room temperature detected by said thermistor based on the signals transferred from said pyroelectric infrared sensor, and a comparator for outputting a signal to control the operation of the air conditioner according to the reference temperature set by said variable resistor and the room temperature modified by said temperature modification circuit.
Inventors
- 👤 Hiroshi Tsukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1902; F; F24; F24F; F24F2120/00; F24F2120/10; F24F2120/14
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A room temperature controlling apparatus used for an air conditioner comprising: a room temperature sensor for detecting the temperature in a room and developing a detected temperature signal; reference temperature setting means for setting a reference signal related to a reference temperature for said room; a movement sensor for detecting movement of one or more persons in said room and outputting movement signals in accordance with the detection of the movement of the said one or more persons; room temperature modification means for determining a degree of movement of any persons present in the room from said movement signals and modifying said detected temperature signal by continuously varying the level of said signal in dependence to the determined degree of movement; and operation control means for outputting an output signal to control the operation of the air conditioner according to the reference temperature set by said reference temperature setting means and the detected temperature signal modified by said temperature modification means.
Claim 2
Dependent Claim
161 words
A room temperature controlling apparatus used for an air conditioner comprising: a room temperature sensor for detecting the temperature in a room and developing a detected temperature signal; reference temperature setting means for setting a reference signal related to a reference temperature for said room; a movement sensor for detecting movement of one or more persons in said room and outputting movement signals in accordance with the detection of the movement of the said one or more persons; room temperature modification means for determining a degree of movement of any persons present in the room from said movement signals and modifying said detected temperature signal by continuously varying the level of said signal in dependence to the determined degree of movement; and operation control means for outputting an output signal to control the operation of the air conditioner according to the reference temperature set by said reference temperature setting means and the detected temperature signal modified by said temperature modification means.
Claim 3
Dependent Claim
54 words
A room temperature controlling apparatus used for an air conditioner as claimed in claim 1, wherein said operation control means includes a comparator which compares the reference signal with the modified detected temperature signal so as to output the output signal to stop the operation of the air conditioner when both temperatures are equal.
Claim 4
Dependent Claim
25 words
A room temperature controlling apparatus used for an air conditioner as claimed in claim 1, wherein said movement sensor consists of a pyroelectric infrared sensor.
Claim 5
Dependent Claim
35 words
The room temperature conditioning apparatus of claim 1 wherein said room temperature modification means modifies said detected temperature signal by continuously varying the level of said signal in dependence to the determined degree of movement.
Claim 6
Dependent Claim
159 words
A room temperature controlling apparatus used for an air conditioner comprising: a room temperature sensor for detecting the temperature in a room and developing a detected temperature signal; reference temperature setting means for setting a reference signal related to a reference temperature for said room; a movement sensor for detecting movement of one or more persons in said room and outputting movement signals in accordance with the detection of the movement of the said one or more persons; reference temperature modification means for determining a degree of movement of any persons present in the room from said movement signals and modifying said reference signal to a selected one of multiple levels in dependence to the determined degree of movement; and an operation control means for outputting an output signal to control the operation of the air conditioner according to the room temperature detected by said room temperature sensor and the reference temperature modified by said reference temperature modification means.
Claim 7
Dependent Claim
159 words
A room temperature controlling apparatus used for an air conditioner comprising: a room temperature sensor for detecting the temperature in a room and developing a detected temperature signal; reference temperature setting means for setting a reference signal related to a reference temperature for said room; a movement sensor for detecting movement of one or more persons in said room and outputting movement signals in accordance with the detection of the movement of the said one or more persons; reference temperature modification means for determining a degree of movement of any persons present in the room from said movement signals and modifying said reference signal to a selected one of multiple levels in dependence to the determined degree of movement; and an operation control means for outputting an output signal to control the operation of the air conditioner according to the room temperature detected by said room temperature sensor and the reference temperature modified by said reference temperature modification means.
Claim 8
Dependent Claim
54 words
A room temperature controlling apparatus used for an air conditioner as claimed in claim 5, wherein said operation control means includes a comparator which compres the detected temperature signal with the modified reference signal so as to output the output signal to stop the operation of the air conditioner when both temperatures are equal.
Claim 9
Dependent Claim
25 words
A room temperature controlling apparatus used for an air conditioner as claimed in claim 5, wherein said movement sensor consists of a pyroelectric infrared sensor.
Claim 10
Dependent Claim
34 words
The room temperature conditioning apparatus of claim 5 wherein said room temperature modification means modifies said reference signal by continuously varying the level of said signal in dependence to the determined degree of movement.
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) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |