公开(公告)号：WO2010072790A1

公开(公告)日：2010-07-01

申请号：PCT/EP2009/067805

申请日：2009-12-22

Applicant: STMICROELECTRONICS S.R.L. ,  ALESSI, Enrico ,  DI TRAPANI, Giovanni ,  LICCIARDELLO, Antonella

Inventor： ALESSI, Enrico ,  DI TRAPANI, Giovanni ,  LICCIARDELLO, Antonella

IPC: B01L3/00 ,  B01L7/00 ,  G01N35/00 ,  G01F23/00

CPC classification number: B01L7/52 ,  B01L3/5027 ,  B01L3/502715 ,  B01L3/502753 ,  B01L2200/10 ,  B01L2200/143 ,  B01L2200/147 ,  B01L2300/0627 ,  B01L2300/0816 ,  B01L2300/0819 ,  B01L2300/087 ,  B01L2300/1805 ,  G01N35/00663 ,  G01N35/00712

Abstract: The method for detecting the presence of liquids includes detecting an initial temperature (Tl) in a channel (9) accommodating a liquid; heating the channel for a predetermined test time (Δt2); detecting a test temperature (T2); determining a temperature variation (S) on the basis of the initial temperature, the test temperature, and the test time; and comparing the temperature variation with at least one threshold (Z). Before detecting an initial temperature, an ambient temperature is read, the channel is heated to the initial temperature, and is kept at the initial temperature for a time period.

Abstract translation: 用于检测液体存在的方法包括检测容纳液体的通道（9）中的初始温度（T1）; 加热通道预定测试时间（Δt2）; 检测测试温度（T2）; 基于初始温度，测试温度和测试时间确定温度变化（S）; 以及将温度变化与至少一个阈值（Z）进行比较。 在检测初始温度之前，读取环境温度，将通道加热至初始温度，并保持初始温度一段时间。

公开(公告)号：EP4382874A1

公开(公告)日：2024-06-12

申请号：EP23213869.3

申请日：2023-12-04

Applicant: STMicroelectronics S.r.l.

Inventor： ALESSI, Enrico Rosario ,  PASSANITI, Fabio ,  LICCIARDELLO, Antonella ,  BALDACCHINO, Daniele

IPC: G01J5/00 ,  G01J5/0806 ,  G01J5/0831

CPC classification number: G01J5/0025 ,  G01J5/0831 ,  G01J5/0806

Abstract: A sensor device includes a passive infrared sensor, a control circuit, and a lens that directs infrared radiation onto the passive infrared sensor. The lens includes an obstruction that asymmetrically blocks transmission of infrared radiation through the lens. The control circuit is configured to determine the direction of crossing of individuals passing in front of the sensor device based on sensor signals from the passive infrared sensor.

公开(公告)号：EP2382045A1

公开(公告)日：2011-11-02

申请号：EP09799637.5

申请日：2009-12-22

Applicant: STMicroelectronics S.r.l.

Inventor： ALESSI, Enrico ,  DI TRAPANI, Giovanni ,  LICCIARDELLO, Antonella

IPC: B01L3/00 ,  B01L7/00 ,  G01N35/00 ,  G01F23/00

CPC classification number: B01L7/52 ,  B01L3/5027 ,  B01L3/502715 ,  B01L3/502753 ,  B01L2200/10 ,  B01L2200/143 ,  B01L2200/147 ,  B01L2300/0627 ,  B01L2300/0816 ,  B01L2300/0819 ,  B01L2300/087 ,  B01L2300/1805 ,  G01N35/00663 ,  G01N35/00712

Abstract: The method for detecting the presence of liquids includes detecting an initial temperature (Tl) in a channel (9) accommodating a liquid; heating the channel for a predetermined test time (Δt2); detecting a test temperature (T2); determining a temperature variation (S) on the basis of the initial temperature, the test temperature, and the test time; and comparing the temperature variation with at least one threshold (Z). Before detecting an initial temperature, an ambient temperature is read, the channel is heated to the initial temperature, and is kept at the initial temperature for a time period.