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US 8,285,212 B2Granted
System and method for secure short-range communication
AssigneeBroadcom Corporation
InventorsRobert William Hulvey, John Walley
Life of this patent
Estimating the term…
Abstract
A system and method for enabling secure short-range communication. A close proximity transmitter is used that is designed with a relatively poor radiator as compared to a conventional transmitter supporting conventional transmissions such as mobile phone communications, Wi-Fi, or Bluetooth communication. The close-proximity transmitter and the conventional transmitter are selectively activated based on a communication mode.
Claims20
A wireless device, comprising:
- a first antenna that is designed to enable communication from said wireless device to a first device;
- a second antenna being designed for close proximity communication to a second device, said close proximity communication providing increased security of communication as compared to communication using said first antenna;
- and
- a switch that enables a change in coupling between a transmission module and one of said first and said second antennas, wherein upon completion of a transmission of confidential information between said wireless device and said second device using said increased security of communication provided by a coupling of said transmission module to said second antenna, said switch being configured to switch a coupling of said transmission module from said second antenna to said first antenna.
1 more element
A communication method in a wireless device, comprising:
- communicating from said wireless device using a transmission module that is selectively coupled to one of a first antenna and a second antenna, wherein said second antenna is designed for close proximity communication, said close proximity communication providing increased security of communication as compared to communication using said first antenna;
- after completion of a transmission of confidential information using a first coupling of said transmission module to said second antenna for increased security of communication of said confidential information, switching in said wireless device to a second coupling where said transmission module is coupled to said first antenna;
- and
- after said switching, communicating from said wireless device to a receiving device using said first antenna for a transmission of second information.
1 more element
A communication method in a wireless device, comprising:
- routing, via a switch, transmission data to a first antenna for transmission to a receiving device;
- switching a coupling of said switch from said first antenna to a second antenna, wherein said second antenna is designed for close proximity communication with a receiving device, said close proximity communication providing increased security of communication as compared to communication using said first antenna;
- after said switching, communicating from said wireless device to a receiving device using said second antenna, said communication to said receiving device using said second antenna including a transmission of confidential information between said wireless device and said receiving device using said increased security of communication;
- and
- switching said coupling of said switch from second antenna to said first antenna upon completion of said transmission of confidential information.
2 more elements
Dependencies are inferred from the claim text.