Mario M. Casabona - Cedar Grove NJ, US Murray W. Rosen - Paralppany NJ, US Ilya Kovnatsky - Southampton PA, US David Van Alstine - Midland Park NJ, US
Assignee:
Honeywell International Inc. - Morristown NJ
International Classification:
H04B 1/10
US Classification:
375346, 375144, 375148
Abstract:
A narrowband interference excision and nulling system for Global Positioning Satellite (GPS), spread spectrum navigation and communication bands, and an antijam electronic apparatus that operates using RF conversion and digital signal processing. A band containing the signal of interest as well as interference is converted to an intermediate frequency (IF) for RF filtering using single conversion, and this signal is digitized using an analog-to-digital converter (ADC). A representation of the signal is produced at a lower frequency using digitization and filtering, and a continuous data representation of the band is processed using multiple-point samples to define the input to a complex FFT. The FFT produces contiguous frequency bins that are examined to identify narrowband and broadband interference. An excision algorithm determines the optimum pattern of bins to be removed, after which the residual bins are reconstructed using an IFFT, followed by digital-to-analog conversion and RF conversion to the output band.
In one embodiment, an antenna configuration for locating RFID tags has two sets of (mutually orthogonal) elongated reader coils, where each elongated reader coil corresponds to two or more different possible locations of RFID tags, and each possible location is associated with one reader coil in each of the two sets. The identities and locations of RFID tags can be determined by (sequentially) energizing the different sets of reader coils and correlating the recorded responses from RFID tags. In one application, the antenna configuration is used at the box level of a cold storage system for biological samples having one or more freezers, each freezer having one or racks, each rack receiving one or more boxes, each box receiving one or more sample containers, where, in addition to the biological sample, each sample container has a unique passive RFID tag.
Harold Osborne - Holland PA, US Richard Osborne - Feasterville PA, US Ilya Kovnatsky - Holland PA, US
International Classification:
G08B023/00
US Classification:
340/573400, 340/573300
Abstract:
A perimeter monitoring system intended for the enhanced safety of children includes a receiver communicating with a plurality of transmitters worn by the monitored individuals within a predefined perimeter area surrounded by a perimeter loop antenna. A periodic transmission is sent by each transmitter to the receiver as confirmation that the child is presently within the desired area. The system will alarm the operator and provide an indication identifying any one of the monitored children that either leaves the predefined perimeter or enters a restricted area.
Apparatus And Method For Monitoring Optical Signal Transmission In Optical Fibers
An apparatus for monitoring optical signal transmission in a plurality of optical fibers may include a fixture for introducing a bend into the plurality of fibers arranged at respective predetermined locations on the fixture, to cause a portion of light propagating in any of the fibers to scatter out therefrom. The apparatus may include a lens unit positioned to focus the scattered light onto predetermined photo-detectors of an array, in accordance with the fiber from which the scattered light emanates, and generate image data indicating a characteristic of the scattered light detected at respective ones of the photo-detectors identified by location in the array corresponding to the respective ones of the photo-detectors.
Low-Power Network Node For A Low-Power, Wide Area (Lpwa) Internet Of Things (Iot) System
- League City TX, US Christopher Posey - Pensacola Beach FL, US Robert Tepp - Friendswood TX, US Ilya Kovnatsky - Southampton PA, US Daniel Richard Wisniewski - Pearland TX, US
International Classification:
H04W 72/04 H04W 56/00 H04W 72/08
Abstract:
A gateway includes memory configured to store computer-readable program code; and processing circuitry configured to access the memory and execute the computer-readable program code. The gateway is connected or connectable to a low-power wide area (LPWA) network. The gateway is caused to transmit a common timing reference at a constant interval that delineates an epoch including timeslots assignable to network nodes and a free-for-all interval. The gateway is also caused to join a network node to the LPWA network based on the common timing reference and is further caused to receive a join message including a measure of received signal strength or quality of the common timing reference at the network node. The gateway is also caused to assign one or more timeslots within the epoch, a frequency, a channel, or a modulation to the network node based on the measure of received signal strength or other quality.