Patents
US 9791872 B2: Method and apparatus for an energy saving heating, ventilation, and air conditioning (HVAC) control system
- Granted
- 2017-10-17
- Filed
- 2013-03-14 application 13827717
- Type
- Utility · 28 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Embodiments of methods and apparatus disclosed herein may employ depth, visual, or motions sensors to enable three-dimensional people counting and data mining to enable an energy saving heating, ventilation, and air conditioning (HVAC) control system. Head detection methods based on depth information may assist people counting in order to enable an accurate determination of room occupancy. A pattern of activities of room occupancy may be learned to predict the activity level of a building or its rooms, reducing energy usage and thereby providing a cost savings.
Source: PVGPATDIS, file of 2026-04-10 (ipg171017.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| PELCO, INC. 80 patents | US company or organization | Clovis, CA | PELCO, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Lei Wang | Clovis, CA | 767 | PVGPATDIS, file of 2026-04-10 | |
| Farzin Aghdasi | Clovis, CA | 50 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G05D | Systems for controlling or regulating non-electric variables | G05D23/1927 | PVGPATDIS, file of 2026-04-10 |
| F24F | Air-conditioning; air-humidification; ventilation; use of air currents for screening | F24F11/30 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-08-05 | Release of security interest Release of security interests in patents | WELLS FARGO BANK, NATIONAL ASSOCIATION, A NATIONAL BANKING ASSOCIATION signed 2020-07-31 | PELCO, INC. CLOVIS, CA TRANSOM PELCO ACQUISITION, INC. (FORMERLY ZOOM ACQUISITIONCO, INC.) EL SEGUNDO, CA | 53415/1 | ECORSEXC, file of 2026-09-25 |
| 2019-05-29 | Security interest Security interest Security interest | PELCO, INC. signed 2019-05-24 ZOOM ACQUISITIONCO, INC. signed 2019-05-24 | WELLS FARGO BANK, NATIONAL ASSOCIATION SANTA MONICA, CA | 49314/16 | ECORSEXC, file of 2026-09-25 |
| 2013-04-26 | Assignment Assignment of assignor's interest | AGHDASI, FARZIN signed 2013-04-24 WANG, LEI signed 2013-04-24 | PELCO, INC. CLOVIS, CA | 30299/222 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.