IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0320930
(2005-12-29)
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등록번호 |
US-7492256
(2009-02-17)
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발명자
/ 주소 |
- Eren,Selcuk Suat
- Jaeger,Brian Jules
- Law,Douglas Alan
- Roberts,Paul Allen
- Sremaniak,Shawn Konrad
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출원인 / 주소 |
- International Business Machines Corporation
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
An apparatus and method are disclosed for detecting whether a device has been tilted beyond a predefined threshold. A casing is included for temporarily enclosing a radio frequency identification (RFID) tag. The RFID tag is unable to receive an RFID interrogation signal when the RFID tag is enclosed
An apparatus and method are disclosed for detecting whether a device has been tilted beyond a predefined threshold. A casing is included for temporarily enclosing a radio frequency identification (RFID) tag. The RFID tag is unable to receive an RFID interrogation signal when the RFID tag is enclosed in the casing. The tilting of the device is monitored. In response to the amount of tilt exceeding the predefined threshold, the RFID tag is exposed to radio frequency (RF) signals. The RFID tag receives the RFID interrogation signal when the RFID tag is exposed. The RFID tag transmits a reply RFID signal in response to a receipt by the RFID tag of the RFID interrogation signal. The RFID tag transmits the RFID reply signal only when the RFID tag is exposed which indicates that tilting of the device beyond the predefined threshold has occurred.
대표청구항
▼
What is claimed is: 1. An apparatus for detecting whether a device has been tilted beyond a predefined threshold, said apparatus comprising: a casing for temporarily enclosing a radio frequency identification (RFID) tag, said RFID tag being unable to receive an RFID interrogation signal when said R
What is claimed is: 1. An apparatus for detecting whether a device has been tilted beyond a predefined threshold, said apparatus comprising: a casing for temporarily enclosing a radio frequency identification (RFID) tag, said RFID tag being unable to receive an RFID interrogation signal when said RFID tag is enclosed in said casing; said apparatus detecting an amount of tilt of said device; and in response to said amount of tilt exceeding said predefined threshold, said RFID tag being exposed to RFID interrogation signal and said RFID tag receiving said RFID interrogation signal when said RFID tag is exposed; and said RFID tag transmitting a reply RFID signal in response to a receipt by said RFID tag of said RFID interrogation signal, said RFID tag transmitting said reply RFID signal only when said RFID tag is exposed, said RFID reply signal indicating that said device has been tilted beyond said predefined threshold. 2. The apparatus according to claim 1, further comprising: in response to said amount of tilt not exceeding said predefined threshold, said RFID tag remaining in said casing and not receiving said RFID interrogation signal. 3. The apparatus according to claim 1, further comprising: a weighting device; and in response to said amount of tilt exceeding said predefined threshold, said weighting device causing said RFID tag to become exposed. 4. The apparatus according to claim 1, further comprising: a ledge included within said casing for temporarily supporting a weighting device; said weighting device resting on said ledge when said amount of tilt does not exceed said predefined threshold; in response to said amount of tilt exceeding said predefined threshold, said weighting device being moved from said ledge and onto said RFID tag causing said RFID tag to become exposed. 5. The apparatus according to claim 1, further comprising: a ledge included within said casing for temporarily supporting a weighting device, said ledge including a lip curved into a first end of said ledge, an amount of said curve being said predefined threshold. 6. The apparatus according to claim 1, further comprising: a ledge included within said casing for temporarily supporting a weighting device; said weighting device resting on said ledge when said amount of tilt does not exceed said predefined threshold; in response to said tilt exceeding said predefined threshold, said apparatus being activated by said weight rolling off of said ledge and onto a top of said RFID tag causing said RFID tag to be pushed out of said casing. 7. The apparatus according to claim 1, further comprising: said device being affixed to a product that is completely enclosed within a package, said device being invisible to a person while said product is enclosed in said package. 8. The apparatus according to claim 1, further comprising: at least one ball bearing that temporarily rests on a curved ledge; and in response to said amount of tilt exceeding said predefined threshold, said at least one ball bearing rolling off of said ledge and onto a top of said RFID tag to cause said RFID tag to become exposed and capable of receiving said RFID interrogation signal. 9. The apparatus according to claim 1, further comprising: a weighting device; said RFID tag temporarily supported by a lever; a spring urging said RFID tag into an unshielded portion of said apparatus; in response to said amount of tilt exceeding said predefined threshold, said weighting device causing said lever to release said RFID tag, said spring causing said RFID tag to move into said unshielded portion when said lever is released; and said RFID tag being exposed and said RFID tag receiving said RFID interrogation signal when said RFID tag is in said unshielded portion. 10. A method for detecting whether a device has been tilted beyond a predefined threshold, said method comprising: temporarily enclosing a radio frequency identification (RFID) tag in a casing, said RFID tag being unable to receive an RFID interrogation signal when said RFID tag is enclosed in said casing; detecting an amount of tilt of said device; in response to said amount of tilt exceeding said predefined threshold, exposing said RFID tag to interrogation signal; receiving, by said exposed RFID tag, said RFID interrogation signal; and transmitting, by said exposed RFID tag, a reply RFID signal in response to said receipt by said RFID tag of said RFID interrogation signal, said RFID tag transmitting said reply RFID signal only when said RFID tag is exposed, said RFID reply signal indicating that said device has been tilted beyond said predefined threshold. 11. The method according to claim 10, further comprising: in response to said amount of tilt not exceeding said predefined threshold, preventing, by said casing, said RFID tag from receiving said RFID interrogation signal. 12. The method according to claim 10, further comprising: providing a weighting device within said device; and in response to said amount of tilt exceeding said predefined threshold, causing, by said weighting device, said RFID tag to become exposed. 13. The method according to claim 10, further comprising: providing a ledge within said casing for temporarily supporting a weighting device; said weighting device resting on said ledge when amount of tilt does not exceed said predefined threshold; in response to said amount of tilt exceeding said predefined threshold, exposing said RFID tag utilizing said weighting device wherein said weighting device moving from said ledge and onto said RFID tag causing said RFID tag to become exposed. 14. The method according to claim 10, further comprising: temporarily holding a weighting device on a ledge that is included within said casing, said ledge including a lip curved into a first end of said ledge, an amount of said curve being said predefined threshold. 15. The method according to claim 10, further comprising: temporarily holding a weighting device on a ledge that is included within said casing; said weighting device resting on said ledge when said amount of tilt does not exceed said predefined threshold; in response to said amount of tilt exceeding said predefined threshold, pushing said RFID tag out of said casing by said weighting device, said weighting device rolling off of said ledge and onto a top of said RFID tag causing said RFID tag to be pushed out of said casing in response to said amount of tilt exceeding said predefined threshold. 16. The method according to claim 10, further comprising: affixing said device to a product that is completed enclosed within a package, said device being invisible to a person while said product is completely enclosed in said package. 17. The method according to claim 10, further comprising: at least one ball bearing that temporarily rests on a curved ledge in said casing; and in response to said amount of tilt exceeding said predefined threshold, exposing said RFID tag utilizing at least one ball bearing that rolls off of a ledge that is included in said casing and onto a top of said RFID tag to cause said RFID tag to become exposed and capable of receiving said RFID interrogation signal. 18. The method according to claim 10, further comprising: reading said reply RFID signal by an RFID reader, said reply RFID signal including an identifier that uniquely identifies said RFID tag. 19. The method according to claim 10, further comprising: reading said reply RFID signal by an RFID reader, said reply RFID signal including an identifier that uniquely identifies said RFID tag; reading navigational coordinates of said RFID reader in response to a receipt of said reply RFID signal; and storing said identifier and said navigational coordinates to indicate a tilt event that is an occurrence of said device being tilted beyond said predefined threshold. 20. The method according to claim 10, further comprising: temporarily supporting said RFID tag by a lever; urging said RFID tag into an unshielded portion of said apparatus utilizing a spring; in response to said amount of tilt exceeding said predefined threshold, causing, by a weighting device said lever to release said RFID tag, said spring causing said RFID tag to move into said unshielded portion when said lever is released; and exposing said RFID tag, said RFID tag receiving said RFID interrogation signal when said RFID tag is in said unshielded portion.
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