Abstract: Measurement sensors are designed to provide metadata to data recording devices in an opportunistic manner to conserve bandwidth and/or power. In one embodiment, the metadata is communicated to the recording device during opportunistic periods, such as, for example, when actual data transmission can be skipped, or when battery level is high, or when there is enough bandwidth, i.e., other sensors are not using the full allocated bandwidth. In one embodiment, a plurality of sensors each only send a portion of their data such that all the portions taken together form the complete metadata. In another embodiment, each sensor only sends an identification of its type and the receiving device “looks up” the full metadata from a database.

Abstract: Digitally sampled real or sampled and down-converted complex data representing an RF signal are received. One or more statistical computations are calculated for each group of N data values. The one or more statistical computations are calculated for groups of N data values until a particular number of data values (K) are acquired. The one or more statistical computations calculated for each group are computed and stored at the time of acquisition and are available for immediate viewing on a display.

Abstract: RF sensors acquire and store RF data in memory. One RF sensor generates a trigger signal when the RF sensor detects a feature of interest in its acquired RF data. The detecting RF sensor wirelessly transmits the trigger signal to the non-detecting RF sensor. The non-detecting RF sensor reads the appropriate RF data from its memory in response to receipt of the trigger signal. The non-detecting RF sensor accesses the appropriate RF data using a time of day when the trigger signal is received and a predetermined time offset.

Abstract: A sensor system, for performing measurement and diagnostic testing within a body comprises a sensor, for sensing a characteristic of the interior of a body under study, the sensor including a passive identification tag. The system further comprises a communication apparatus, to be disposed in proximity to the body, for communicating with the sensor to obtain information on the characteristic.

Abstract: Digitally sampled real or sampled and down-converted complex data representing an RF signal are received. One or more statistical computations are calculated for each group of N data values. The one or more statistical computations are calculated for groups of N data values until a particular number of data values (K) are acquired. The one or more statistical computations calculated for each group are computed and stored at the time of acquisition and are available for immediate viewing on a display.

Abstract: A network of three or more RF sensors acquires RF data in terms of power versus frequency data or energy versus frequency data. An expected power or energy difference between RF sensors in each pair of RF sensors is calculated based on the known location. The observed power or energy differences are then compared with the expected differences to determine whether the expected and observed differences match or nearly match for one or more particular frequencies. When the observed and expected differences match or nearly match, the particular frequency is determined to be a probable frequency for the RF signal emitted at the known location.

Abstract: RF sensors acquire and store RF data in memory. One RF sensor generates a trigger signal when the RF sensor detects a feature of interest in its acquired RF data. The detecting RF sensor wirelessly transmits the trigger signal to the non-detecting RF sensor. The non-detecting RF sensor reads the appropriate RF data from its memory in response to receipt of the trigger signal. The non-detecting RF sensor accesses the appropriate RF data using a time of day when the trigger signal is received and a predetermined time offset.

Abstract: A system and method are disclosed for superimposing data on an image using a variable opacity that is based upon variations in the numerical values of the data to be superimposed. This allows for representing data most prominently where it the values are higher, while still providing a clear view of the surrounding features.

Abstract: Measurement sensors are designed to provide metadata to data recording devices in an opportunistic manner to conserve bandwidth and/or power. In one embodiment, the metadata is communicated to the recording device during opportunistic periods, such as, for example, when actual data transmission can be skipped, or when battery level is high, or when there is enough bandwidth, i.e., other sensors are not using the full allocated bandwidth. In one embodiment, a plurality of sensors each only send a portion of their data such that all the portions taken together form the complete metadata. In another embodiment, each sensor only sends an identification of its type and the receiving device “looks up” the full metadata from a database.

Abstract: Two or more receivers in a plurality of receivers are selected and the signal data from each receiver obtained. A cross-correlation of signal data is computed for each receiver paring in the selected receivers. The results of each cross-correlation are then combined and mapped into a graphical indicator function. The graphical indicator function generates a visual representation of location information using the results of each cross-correlation computation. The visual representation is then displayed to a user. Additional location information may also be simultaneously displayed with the visual representation or upon command.

Abstract: A system in which remote nodes are supplied with electrical power using existing network communication links. A communication device in a system according to the present techniques routes electrical power to a remote node via a set of unused lines of a network communication link used for communication with the remote node. The electrical power distributed to the remote node may be AC or DC power.