초록 ▼

In a method for operating a portable electronic device comprising a chemical sensor, at least one reference reading is taken by the chemical sensor at least one predetermined point in time. At least one compensation value is determined based on at least one reference value wherein each reference val

In a method for operating a portable electronic device comprising a chemical sensor, at least one reference reading is taken by the chemical sensor at least one predetermined point in time. At least one compensation value is determined based on at least one reference value wherein each reference value is derived from a result of a corresponding reference reading. A result of an operational reading of the chemical sensor is modified by the at least one compensation value.

대표청구항 ▼

1. Portable electronic device, comprising a chemical sensor for detecting one or more analytes in an environment of the chemical sensor, anda control unit for modifying a chemical sensor rending by a compensation value determined subject to at least one reference value derived from a result of refer

1. Portable electronic device, comprising a chemical sensor for detecting one or more analytes in an environment of the chemical sensor, anda control unit for modifying a chemical sensor rending by a compensation value determined subject to at least one reference value derived from a result of reference readings taken by the chemical sensor at predetermined points in time with a predictable chemical condition of the environment of the portable electronic device, which reference readings in case of an ideal chemical sensor would result in same results, for periodically recalibrating the sensor during a series of tests using the same sensor,wherein the chemical sensor is a gas sensor for detecting one or more substances in a gas,wherein the gas sensor is a metal-oxide sensor comprising a metal oxide layer interacting with analytes at elevated temperatures of the metal-oxide layer in a range of more than 100° C.,wherein the metal-oxide sensor comprises a heater thermally coupled to the metal-oxide layer for heating the metal-oxide layer to the elevated temperatures,wherein the compensation value is for compensating for a drift of the chemical sensor occurring when the heater of the chemical sensor is not activated for some time, andwherein drift is understood as a variation in the signal of the chemical sensor over time under identical environmental conditions. 2. Portable electronic device according to claim 1, comprising an interface for transmitting data to and receiving data from a remote determination unit,wherein the control unit is adapted to transmit the at least one reference value to the remote determination unit via the interface, andwherein the control unit is adapted to receive the at least one compensation value from the determination unit via the interface. 3. Portable electronic device according to claim 1, wherein the control unit comprises a determination unit for determining the at least one compensation value subject to the at least one reference value. 4. Portable electronic device according to claim 1, wherein the portable electronic device is one of: a mobile phone,a handheld computer,an electronic reader,a tablet computer,a game controller,a pointing device,a photo or a video camera,a computer peripheral. 5. System, comprising a portable electronic device according to claim 2, anda remote determination unit for determining the at least one compensation value subject to the at least one reference value received via the interface and for transmitting the at least one compensation value via the interface to the portable electronic device. 6. Portable electronic device, comprising a chemical sensor for detecting one or more analytes in an environment of the chemical sensor,a control unit for modifying a chemical sensor reading by a compensation value determined subject to one or more of data representing an operational parameter of the portable electronic device, values measured by a sensor of the poi table electronic device, data from a remote portable electronic device with a chemical sensor, and data from a remote determination unit for determining compensation values,said device comprising an interface for transmitting data to and receiving data from a remote determination unit,wherein the control unit is adapted to transmit the one or more of data representing an operational parameter of the portable electronic device and the values measured by the sensor of the portable electronic device to the remote determination unit via the interface, and is adapted to receive the compensation value from the remote determination unit via the interface, andwherein the data representing an operational parameter of the portable electronic device contains one or more of: heating related data; andoperating hours of the chemical sensor,wherein the gas sensor is a metal-oxide sensor comprising a metal oxide layer interacting with analytes at elevated temperatures of the metal-oxide layer in a range of more than 100° C.,wherein the metal-oxide sensor comprises a heater thermally coupled to the metal-oxide layer for heating the metal-oxide layer to the elevated temperatures,wherein the compensation value is for compensating for a drift of the chemical sensor occurring when the heater of the chemical sensor is not activated for some time, andwherein drift is understood as a variation in the signal of the chemical sensor over time under identical environmental conditions. 7. Portable electronic device according to claim 6, wherein the sensor of the portable electronic device comprises one or more of a humidity sensor or a temperature sensor, and wherein the values measured by the sensor comprises humidity values measured by the humidity sensor and/or temperature values measured by the temperature sensor respectively. 8. System, comprising a portable electronic device according to claim 6, anda remote determination unit forreceiving and storing the one or more of the data representing an operational parameter of the portable electronic device and the values of the sensor of the portable electronic device,determining the at least one compensation value subject to one or more of the data representing an operational parameter of the portable electronic device, the values of the sensor of the portable electronic device, data representing an operational parameter of a remote portable electronic device with a chemical sensor, values of a sensor of the remote portable electronic device, and other data available to the remote determination unit, andtransmitting the at least one compensation value via the interface to the portable electronic device.