Stäfa, Switzerland
Stäfa, Switzerland

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Patent
Sensirion AG | Date: 2016-06-08

Electronic device (10) comprising a housing (11) with a fluid-filled cavity (12), the cavity (12) being coupled to the housing (11) such that a pressure in said cavity (12) changes upon application of an external force onto the housing (12). A pressure sensor (13) is arranged for sensing inside said cavity (12) said pressure change and for generating a pressure signal indicative of said pressure change. The device (10) further comprises an evaluation unit (14) for deriving from said pressure signal at least one component of said external force and for generating a force signal that is indicative of said at least one component of said external force and/or for deriving from said pressure signal a deformation of the housing (11) in at least one direction and to generate a force signal that is indicative of said deformation of the housing (11) in at least one direction.


The present invention is notably directed to a computerized method for deriving step counts from a hardware component (115 - 120) for a consumer good (4, 10) carried or worn by a user. The hardware component comprises a pressure sensor (116) and a detection module (140), the detection module configured to access data (116D) from the pressure sensor. The method comprising, at the detection module (140): sampling (S20) pressure sensor data from the pressure sensor, the pressure sensor data representative of temporal pressure oscillations; identifying (S30), from the sampled pressure sensor data, a signal corresponding to pressure oscillations characteristics of pressure waves induced by steps taken by the user (3) of the consumer good (10), while travelling on foot; and deriving (S38) a step count from the identified signal. The present invention is further directed to hardware components (115 - 120) and computer program products, configured to perform steps such as described above.


Patent
Sensirion AG | Date: 2016-06-01

The present invention is notably directed to computerized method for detecting parking-related events from a mobile device (10). The latter comprising a pressure sensor (116) and a peak detection module (140). The method comprises: monitoring (S10) pressure sensor data from the pressure sensor (116), the pressure sensor data representative of a pressure variation over a period of time; and comparing (S22) the monitored pressure sensor data with reference pressure data corresponding to pressure variations over time as occurring inside a vehicle (1) when, on the one hand, opening a door and, on the other hand, closing a door of this vehicle, to detect (S24) a corresponding pressure variation in the monitored pressure sensor data, in order to determine (S24, S42, S44) whether a vehicle (1) has parked or has started, wherein the steps of monitoring and comparing are performed by the peak detection module (140), in the vehicle. The present invention is further directed to related devices and computer program products.


Patent
Sensirion AG | Date: 2016-07-20

A sensor package comprises a carrier (11) comprising a through hole (111), and a sensor chip (2) with a front side (fs) and a back side (bs) and a recess (21) in the back side (bs). The sensor chip (2) is attached to the carrier (11) with its back side (bs) facing the carrier (11) by means of an attachment layer (4) thereby defining a first area (A1) of the carrier (2) the sensor chip (2) rests on and a second area (A2) of the carrier (11) facing the recess (21). The through hole (111) is arranged in the first area (A1) of the carrier (11).


Patent
Sensirion AG | Date: 2016-03-16

An integrated chemical sensor chip comprises on or integrated in a common substrate (14) a chemically sensitive layer (11) and a heater (15) for heating the sensitive layer (11). In addition, a memory (3) is provided for the storage of a measurement routine, the measurement routine comprising instructions defining a heating process over time and instructions defining one or more measurement points in time. An I/O interface (6) is provided for receiving a trigger for the measurement routine and for supplying a result of the measurement routine. An engine (4) controls the heater (15) and measures a resistance of the sensitive layer (11) according the instructions of the measurement routine.


Patent
Sensirion AG | Date: 2016-07-27

Flow sensor device (1) comprising a housing (10) with a flow channel (11) following a central flow line (N) for a fluid flow. The device (1) comprises at least one flow sensor element (12) and at least one flow grid (2), wherein the flow sensor element (12) is accommodated in the housing (10). The flow grid (2) is arranged upstream of the flow sensor element (12) and extends from a grid center (21) on the central flow line (N) in a radial direction (R) substantially transversely to the central flow line (N). The flow grid (2) is a single-piece plate element with a plurality of openings (22), wherein opening diameters (220) of the openings (22) range from 50 micrometers to 1 millimeter. Moreover, the present invention relates to such a flow grid (2) and to a method of production thereof.


Patent
Sensirion AG | Date: 2016-07-15

A mass flow controller (10) comprises a fluid inlet (15) and at least one first flow meter (11) to measure a first flow rate (F_(1)) and to output a first flow signal (FS_(1)); at least one second flow meter (12) to measure a second flow (F_(2)) rate and to output a second flow signal (FS_(2)); a control device (13) connected to said first and second flow meters (11,12) and configured and arranged to generate a control signal (C); and at least one control valve (14) connected to said control device (13) to control a total flow rate (F_(out)) through the mass flow controller (10) in response to the control signal (C). The control signal (C) is generated as a function of both the first and second flow signals (FS_(1),FS_(2)) such that the mass flow controllers (10) sensitivity to perturbations of said inlet pressure is minimized.


Patent
Sensirion AG | Date: 2016-10-05

A pressure sensor comprises a deformable membrane (42) deflecting in response to pressure applied, a first stationary electrode (43), and a second electrode (44) coupled to the deformable membrane (42), for determining a change in a capacitance between the first and the second electrode (43, 44) in response to the pressure applied. At least one of the first and the second electrode (43, 44) comprises a getter material for collecting gas molecules.


The invention relates to a flow sensor (1) and a method for determining the presence of a gas bubble (G) in a liquid (L) flowing through the flow sensor (1).


Patent
Sensirion AG | Date: 2016-06-15

A flow sensor package (100) comprises a chip (1) comprising a sensitive structure (12) for sensing the flow of a fluid and an encapsulation (2) at least partly encapsulating the chip (1). A recess (21) in the encapsulation (2) contributes to a flow channel (9) for guiding the fluid, which recess (21) exposes at least the sensitive structure (12) of the chip (1) from the encapsulation (2), and which recess (21) extends beyond an edge (Ex1, Ex2) of the chip (1).

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