United States of America As Represented by the Administrator of Nasa

Raymond S Wagner

Patrick W Fink

David Scott Hafermalz

David S Hafermalz

Phong H Ngo

Greg Y Lin

Lazaro D Rodriguez

Chad Zalkin

Ray Seegmiller

A method includes acquiring one or more samples using a sensor of an RFID tag. The method also includes storing the one or more samples in a memory of the RFID tag. The method also includes determining a priority level for each of the one or more samples in the memory. Each of the one or more samples is either a high priority sample with the high priority level or a low priority sample with the low priority level. The method also includes switching the RFID tag from a range standard mode to a range extension mode in response to determining that the one or more samples stored in the memory includes the high priority sample with the high priority level. The method also includes transferring custody of the high priority sample with the high priority level to the RFID reader while the range extension mode is activated.

Range extension and priority handling for wearable, ubiquitous RFID tag

A radio-frequency identification (RFID) antenna assembly, per an implementation, includes a number of multiplexer modules coupled with one another. Radio frequency (RF) signals are received from an RFID reader. One or more of the multiplexer modules has a switch with multiple output ports. An antenna connects with one of the output ports and, per an implementation, an encoder connects with another of the output ports. The multiplexer module(s) may also have a first rectifier for rapid self-powering capabilities, and a second rectifier for more robust self-powering capabilities.

Radio-frequency identification (RFID) antenna assembly and multiplexer module

A method for streaming sensor data from a set of radio-frequency identification (RFID) tags includes determining an initial communication approach to be performed with respect to each RFID tag. The method also includes managing access to the RFID tag by refining the initial communication approach based on records of successes and failures of the initial communication approach. A radio-frequency identification (RFID) system is also disclosed, the system comprising one or more processors and a memory system comprising one or more non-transitory computer-readable media storing instructions that, when executed by at least one of the one or more processors, causes the system to perform operations for streaming sensor data from one or more RFID tags to one or more RFID readers.

Internal radio-frequency instrumentation system and method

A system includes a plurality of radiofrequency identification (RFID) tags including a first RFID tag. The first RFID tag is configured to perform RFID tag operations that include acquiring one or more samples using a sensor of the first RFID tag. The RFID tag operations also include writing the one or more samples in a memory of the first RFID tag. The RFID tag operations also include transferring custody of the one or more samples to a first RFID reader on request. The system also includes a plurality of RFID readers including the first RFID reader. The first RFID reader is configured to perform RFID reader operations including reading an identifier from each of the plurality of RFID tags in view of the first RFID reader during an inventory management mode.

Growing community of inventors

Houston, TX, United States of America

Raymond S Wagner