A fingerprint reader comprising a fingerprint sensor adapted to output information relating to a fingerprint of a finger engaging a sensitive surface the sensor, and a stiff element comprising an indentation/cavity or through-hole, the sensor being positioned in the indentation/cavity/through-hole s
A fingerprint reader comprising a fingerprint sensor adapted to output information relating to a fingerprint of a finger engaging a sensitive surface the sensor, and a stiff element comprising an indentation/cavity or through-hole, the sensor being positioned in the indentation/cavity/through-hole so that the sensitive surface is exposed to the surroundings. The stiff element will prevent breaking of the reader. Also, the stiff element may have one or more electrically conducting surface parts positioned adjacently to the sensitive surface of the sensor and being adapted to be contacted by a finger also contacting the sensor, so that the stiff element forms part of the reader.
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1. A fingerprint reader comprising: a fingerprint sensor adapted to output information relating to a fingerprint of a finger engaging a sensitive surface of the sensor,a stiff element comprising an indentation/cavity or through-hole, the sensor being positioned in the indentation/cavity/through hole
1. A fingerprint reader comprising: a fingerprint sensor adapted to output information relating to a fingerprint of a finger engaging a sensitive surface of the sensor,a stiff element comprising an indentation/cavity or through-hole, the sensor being positioned in the indentation/cavity/through hole so that the sensitive surface is exposed to the surroundings, whereinthe stiff element comprises one or more first electrical conductors andthe sensor comprises one or more second electrical conductors adapted to carry the output information, each of the one or more second electrical conductors being connected to one or more of the first electrical conductors. 2. A reader according to claim 1, wherein the stiff element further comprises one or more electrically conducting surface parts positioned adjacent to the sensitive surface of the sensor and being adapted to be contacted by a finger also contacting the sensor. 3. A reader according to claim 2, further comprising means for providing a signal to the one or more electrically conductive surface parts where the sensor is adapted to provide the output information on the basis of the said signal provided to the one or more electrically conductive surface parts. 4. A reader according to claim 1, wherein the stiff element comprises a layer of a polymer, a metal, or glass fiber/epoxy defining an overall stiffness of the stiff element and having a thickness of 0.2 mm or more. 5. A reader according to claim 1, further comprising a processing element comprising identity information, the processing element being adapted to: receive the output information from the sensor,compare the received information to the identity information anddetermine a correspondence between the received information and the identity information. 6. A credit card size card comprising a fingerprint sensor according to claim 1. 7. A card according to claim 6, further comprising a processing element adapted to receive the output information from the sensor, wherein the stiff element further comprises one or more electrically conducting surface parts each connected to the processing element. 8. A method of operating the fingerprint reader according to claim 1, the method comprising: a finger engaging a sensitive surface of the sensor,the sensor outputting corresponding output information andconducting the output information to the first electrical conductor(s). 9. A method of operating a fingerprint reader that comprises a fingerprint sensor adapted to output information relating to a fingerprint of a finger engaging a sensitive surface of the sensor,a stiff element comprising an indentation/cavity or through-hole, the sensor being positioned in the indentation/cavity/through hole so that the sensitive surface is exposed to the surroundings, whereinthe stiff element comprises one or more first electrical, conductors andthe sensor comprises one or more second electrical conductors adapted to carry the output information, each of the one or more second electrical conductors being connected to one or more of the first electrical conductors, the method comprising:a finger engaging a sensitive surface of the sensor,the sensor outputting corresponding output information andconducting the output information to the first electrical conductor(s), wherein said engaging step comprises the finger additionally contacting one or more electrically conducting surface parts of the stiff element positioned adjacent to the sensitive surface of the sensor. 10. A method according to claim 9, wherein the outputting step comprises providing a signal to the electrically conductive surface parts and providing the output information on the basis of the signal provided to the surface part(s). 11. A method according to claim 8, further comprising the steps of: comparing the output information to predetermined identity information anddetermining a correspondence between the received information and the identity information. 12. A fingerprint reader for insertion in a bendable credit card, said, fingerprint reader relatively stiffer then said credit card, said fingerprint reader comprising, a fingerprint sensor having a sensitive surface and adapted to output information relating to a fingerprint of a finger engaging said sensitive surface,a stiff printed circuit board (PCB) comprising an indentation/cavity that extends partially or entirely through the PCB, said sensor positioned in the indentation/cavity and fastened to said PCB so that the sensitive surface is exposed to the surroundings,wherein said stiff PCB and said sensor each include electrical, conductors connected to each other to enable the output information to be carried from said sensor,wherein said stiff PCB includes electrically conducting surfaces positioned. adjacent said sensitive surface of said sensor and sized to enable finger contact to contact both the sensitive surface and said electrically conducting surfaces, andwherein the PCB has a thickness of 0.2 mm or more. 13. The fingerprint reader of claim 12, wherein the PCB has a stiffness of 100 N/mm2 or more.
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