Wireless communication accessory for a mobile device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04M-001/00
H05K-005/00
H02J-007/02
H02J-007/00
H04B-001/00
출원번호
US-0014095
(2013-08-29)
등록번호
US-9026187
(2015-05-05)
발명자
/ 주소
Huang, Daniel
출원인 / 주소
Morphie, Inc.
대리인 / 주소
Knobbe, Martens, Olson & Bear LLP
인용정보
피인용 횟수 :
43인용 특허 :
357
초록▼
A mobile device peripheral that incorporates a repeater antenna inside of a protective case for a mobile device to extend the range of short-range communications while minimizing interference caused by the thickness or materials of the protective case. The repeater antenna can be capable of receivin
A mobile device peripheral that incorporates a repeater antenna inside of a protective case for a mobile device to extend the range of short-range communications while minimizing interference caused by the thickness or materials of the protective case. The repeater antenna can be capable of receiving a wireless signal from an antenna in the mobile device and transmitting the same signal or an amplified version of the same signal. The repeater antenna can be capable of receiving a wireless signal from an external antenna and transmitting the same signal or an amplified version of the same signal to the mobile device. The mobile device peripheral can also include a battery that provides additional power the mobile device. Without a repeater antenna, the materials and/or thickness of the additional battery and/or the case can partially or completely block a short-range, low-frequency, or low-power communication signal such as Near Field Communication (NFC).
대표청구항▼
1. A method of transmitting a near field communication (NFC) signal from a mobile electronic device that is at least partially enclosed by a protective case, the method comprising: providing a mobile electronic device that is at least partially enclosed by a protective case; wherein the mobile elect
1. A method of transmitting a near field communication (NFC) signal from a mobile electronic device that is at least partially enclosed by a protective case, the method comprising: providing a mobile electronic device that is at least partially enclosed by a protective case; wherein the mobile electronic device comprises a battery and an antenna configured to transmit near field communication (NFC) signals;wherein the protective case comprises a supplemental battery configured to charge the mobile electronic device;wherein the protective case comprises a repeater antenna that includes a first antenna disposed on a first side of the supplemental battery, a second antenna disposed on a second side of the supplemental battery, and an electrical connection that electrically couples the first antenna to the second antenna;transmitting an NFC signal from the antenna of the mobile electronic device using an NFC wireless communication protocol, wherein the supplemental battery is positioned to block the NFC signal;receiving the NFC signal by the first antenna of the repeater antenna;relaying the NFC signal from the first antenna of the repeater antenna to the second antenna of the repeater antenna via the electrical connection; andre-transmitting the NFC signal from the second antenna of the repeater antenna using the same NFC wireless communication protocol. 2. The method of claim 1, further comprising receiving an incoming NFC signal by the second antenna of the repeater antenna;relaying the incoming NFC signal from the second antenna of the repeater antenna to the first antenna of the repeater antenna via the electrical connection;re-transmitting the NFC signal from the first antenna of the repeater antenna; andreceiving the re-transmitted signal by the antenna of the mobile electronic device. 3. A protective case for a mobile electronic device, the protective case comprising: a housing that includes a cavity configured to at least partially enclose a mobile electronic device that has an antenna for transmitting and receiving signals from a rear of the mobile electronic device, the housing comprising a back surface configured to be disposed rearward of the mobile electronic device, and the housing comprising an external wall disposed rearward of the back surface;a battery inside the housing such that the battery is configured to be disposed rearward of the mobile electronic device between the back surface and the external wall;a first antenna disposed on a first side of the battery between the back surface and the battery, the first antenna facing forward and configured to receive signals from, and transmit signals to, the antenna of the mobile electronic device;a second antenna disposed on a second side of the battery between the external wall and the battery, the second antenna facing rearward; andan electrical connection that electrically couples the first antenna to the second antenna, wherein the electrical connection is configured to communicate signals between the first antenna and the second antenna;wherein the first antenna is configured to re-transmit the same signals, or amplified versions of the same signals, received by the second antenna, and wherein the second antenna is configured to re-transmit the same signals, or amplified versions of the same signals, received by the first antenna. 4. The protective case of claim 3, further comprising a mobile electronic device at least partially enclosed by the housing of the protective case. 5. The protective case of claim 4, wherein the mobile electronic device comprises: an antenna for transmitting and receiving signals from a rear of the mobile electronic device;a battery; anda device interface;wherein the protective case comprises an interface configured to couple to the device interface to provide an electrical connection for the battery of the protective case to charge the mobile electronic device. 6. The protective case of claim 4, wherein the mobile electronic device comprises a mobile phone or a tablet computer. 7. The protective case of claim 3, further comprising an interface configured to couple to a device interface on the mobile electronic device to provide an electrical connection for the battery of the protective case to charge the mobile electronic device. 8. The protective case of claim 3, wherein the first antenna and the second antenna are formed on a flexible printed circuit board. 9. The protective case of claim 3, further comprising: a first ferrite layer disposed between the battery and the first antenna; anda second ferrite layer disposed between the battery and the second antenna. 10. The protective case of claim 3, wherein the first antenna and the second antenna are configured to receive and transmit near field communication (NFC) signals. 11. A case for a mobile electronic device, the case comprising: a housing configured to removably couple to a mobile electronic device, the housing comprising a back surface configured to be disposed rearward of the mobile electronic device, and the housing comprising an external wall disposed rearward of the back surface;a battery inside the housing between the back surface and the external wall;a first antenna inside the housing between the back surface and the battery; anda second antenna inside the housing and spaced apart from the first antenna, the second antenna disposed between the battery and the external wall; anda communication link between the first antenna and the second antenna;wherein the first antenna is configured to emit a signal that is based at least in part on a signal received by the second antenna, or wherein the second antenna is configured to emit a signal that is based at least in part on a signal received by the first antenna, wherein the first antenna and the second antenna are configured to use the same wireless communication protocol. 12. The case of claim 11, further comprising an interface configured to couple to a device interface on the mobile electronic device to provide an electrical connection for the battery of the protective case to charge the mobile electronic device. 13. The case of claim 11, further comprising one or more insulating layers disposed between the first antenna and the second antenna. 14. The case of claim 13, further comprising one or more ferrite layers disposed between the first antenna and the second antenna. 15. The case of claim 11, further comprising: one or more insulating layers disposed between the first antenna and the second antenna;a first ferrite layer disposed between the one or more insulating layers and the first antenna; anda second ferrite layer disposed between the one or more insulation layers and the second antenna. 16. The case of claim 15, wherein the battery is disposed between the first antenna and the second antenna, wherein the one or more insulation layers comprises a first insulating layer disposed between the battery and the first ferrite layer and a second insulating layer disposed between the battery and the second ferrite layer. 17. The case of claim 11, further comprising one or more ferrite layers disposed between the first antenna and the second antenna. 18. The case of claim 11, wherein the first antenna and the second antenna are positioned such that the first antenna is configured to be closer than the second antenna to the mobile electronic device. 19. The case of claim 11, wherein the battery is configured to amplify the signal emitted by the first antenna or the signal emitted by the second antenna. 20. The case of claim 11, wherein the first antenna and the second antenna are configured to relay a signal for charging the mobile electronic device. 21. The case of claim 20, further comprising a mobile electronic device coupled to the housing, wherein the mobile electronic device comprises: a mobile device antenna;a mobile device battery; andan electrical connection between the mobile device antenna and the mobile device battery;wherein the second antenna is configured to receive an input charging signal, wherein the first antenna is configured to emit an output charging signal based at least in part on the input charging signal, and wherein the mobile device antenna is configured to receive the output charging signal and to charge the mobile device battery via the electrical connection. 22. The case of claim 20, wherein the signal for charging the mobile electronic device comprises a magnetic field. 23. The case of claim 11, further comprising: a third antenna; anda communication link between the first antenna and the third antenna;wherein the second antenna is configured to emit a signal that is based at least in part on a signal received by the first antenna, and wherein the third antenna is configured to emit a signal that is based at least in part on a signal received by the first antenna. 24. The case of claim 11, wherein the wireless communication protocol used by the first antenna and the second antenna is near field communication (NFC). 25. A peripheral for a mobile electronic device comprising: a case configured to hold a mobile electronic device configured to transmit or receive a short-range wireless communication signal via a wireless communication protocol;a battery disposed inside the case such that the battery blocks the short-range wireless communication signal from the mobile electronic device; anda repeater antenna at least partially disposed inside the case, wherein the repeater antenna comprises a first antenna and a second antenna, wherein the first antenna is configured to receive or transmit the short-range wireless communication signal via the wireless communication protocol, wherein the second antenna is configured to transmit or receive the short-range wireless communication signal via the same wireless communication protocol, and wherein the battery is situated between the first antenna and the second antenna. 26. The peripheral of claim 25, wherein the repeater antenna comprises: an electrical connection between the first antenna and the second antenna;wherein the first antenna is configured to emit a signal that is based at least in part on a signal received by the second antenna, or wherein the second antenna is configured to emit a signal that is based at least in part on a signal received by the first antenna. 27. The peripheral of claim 25, wherein the wireless communication protocol is near field communication (NFC).
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