Method and system for performing distance measuring and direction finding using ultrawide bandwitdh transmissions
First Claim
1. A combined ultrawide bandwidth-radio frequency (UWB-RF) remote identification tag, comprising:
- ultrawide bandwidth (UWB) circuitry for receiving or transmitting UWB signals;
radio frequency (RF) circuitry for receiving or transmitting RF signals; and
interface circuitry formed between the RF circuitry and the UWB circuitry.
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Accused Products
Abstract
An identification tag is provided in which radio frequency (RF) circuitry and ultrawide bandwidth (UWB) circuitry are both provided on the same tag, along with some UWB-RF interface circuitry. The RF circuitry is used to detect when the identification tag must be accessed, and is used to connect the UWB circuitry with a power supply. The UWB circuitry then performs the necessary communication functions with a distant device and the power supply is again disconnected. In this way the power supply is only accessed when the UWB circuitry is needed and it'"'"'s usable lifetime can be maximized.
123 Citations
14 Claims
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1. A combined ultrawide bandwidth-radio frequency (UWB-RF) remote identification tag, comprising:
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ultrawide bandwidth (UWB) circuitry for receiving or transmitting UWB signals; radio frequency (RF) circuitry for receiving or transmitting RF signals; and interface circuitry formed between the RF circuitry and the UWB circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of responding to an incoming signal, including:
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receiving an incoming RF signal; processing the incoming RF signal to generate an activation signal; activating a UWB circuit in response to the activation signal; performing a UWB function with the UWB circuit after the UWB circuit is activated. - View Dependent Claims (11, 12, 13, 14)
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Specification