Synchronous dual band signal acquisition and source location system
AssigneeRF Controls, LLC
InventorGraham P. Bloy
Life of this patent
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Abstract
A dual band radio frequency signal acquisition and source location system, provided with a steerable phased array antenna operable in a first and a second radio frequency band. A digital signal processor electrically connected to the steerable phased array antenna is configured to control steering of an antenna beam of the steerable phased array antenna and apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands. In particular, the first frequency band may be 2.4 GHz Bluetooth/Bluetooth Low Energy, and the second frequency band may be 900 MHz passive UHF RFID.
Claims22
A dual band radio frequency signal acquisition and source location system, comprising:
- a steerable phased array antenna operable in a first and a second radio frequency band;
- and
- a digital signal processor electrically connected to the steerable phased array antenna and including a multi path ambiguity module and a phase ranging module;
- the digital signal processor configured to:
- control steering of an antenna beam of the steerable phased array antenna;
- apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands;
- identify and exclude RF signals received via pseudo emitters;
- and
- identify a location of a received RF signal along the length of the antenna beam via phase ranging.
A dual band radio frequency signal acquisition and source location system, comprising:
- a steerable phased array antenna operable in a first and a second radio frequency band;
- and
- a digital signal processor electrically connected to the steerable phased array antenna;
- the digital signal processor configured to:
- control steering of an antenna beam of the steerable phased array antenna;
- and
- apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands;
- wherein the frequency time division multiplexing of radio frequency signaling in the first and the second frequency bands is operative only upon the transmission of RF signals;
- the frequency time division multiplexing configured to alternate RF signal transmissions within each of the first and second frequency bands so that RF signal transmission only occurs in one of the first and the second frequency bands at a time.
A dual band radio frequency signal acquisition and source location system, comprising:
- a steerable phased array antenna operable in a first and a second radio frequency band;
- a Bluetooth/Bluetooth Low Energy controller electrically connected to the digital signal processor;
- a Bluetooth/Bluetooth Low Energy transceiver and a Bluetooth/Bluetooth Low Energy receiver electrically coupled between the Bluetooth/Bluetooth Low Energy controller and a duplexer;
- an RF modulation control electrically connected between the steerable phased array antenna and the duplexer;
- and
- a digital signal processor electrically connected to the steerable phased array antenna;
- the digital signal processor configured to:
- control steering of an antenna beam of the steerable phased array antenna;
- and
- apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands;
- wherein the radio frequency signaling in the first radio frequency band is Bluetooth and/or Bluetooth Low Energy protocol and the radio frequency signaling in the second radio frequency band is back scatter modulation protocol for passive RFID.
A dual band radio frequency signal acquisition and source location system, comprising:
- a steerable phased array antenna operable in a first and a second radio frequency band;
- a reader controller electrically connected to the digital signal processor;
- an RF ASIC and an RF modulation control electrically connected between the steerable phased array antenna and the reader controller;
- and
- a digital signal processor electrically connected to the steerable phased array antenna;
- the digital signal processor configured to:
- control steering of an antenna beam of the steerable phased array antenna;
- and
- apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands;
- wherein the radio frequency signaling in the first radio frequency band is Bluetooth and/or Bluetooth Low Energy protocol and the radio frequency signaling in the second radio frequency band is back scatter modulation protocol for passive RFID.
Dependencies are inferred from the claim text.