Invention Grant
US08952822B2 Use of optical reflectance proximity detector for nuisance mitigation in smoke alarms
有权
在烟雾报警器中使用光学反射率接近检测器进行有害扰动
- Patent Title: Use of optical reflectance proximity detector for nuisance mitigation in smoke alarms
- Patent Title (中): 在烟雾报警器中使用光学反射率接近检测器进行有害扰动
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Application No.: US14269688Application Date: 2014-05-05
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Publication No.: US08952822B2Publication Date: 2015-02-10
- Inventor: Wayne T. Holcombe
- Applicant: Nest Labs, Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G08B17/10
- IPC: G08B17/10 ; G08B29/18 ; G08B3/10 ; G08B17/11 ; G08B17/103
Abstract:
A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal responsive to detection of an object within in a selected distance of the smoke alarm. Alarm generation circuitry generates an audible alarm responsive to the detection signal. The audible alarm may be deactivated for a predetermined period of time responsive to at least one proximity detection signal.
Public/Granted literature
- US20140240136A1 USE OF OPTICAL REFLECTANCE PROXIMITY DETECTOR FOR NUISANCE MITIGATION IN SMOKE ALARMS Public/Granted day:2014-08-28
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