Patent application number | Description | Published |
20100259439 | SYSTEM AND METHOD FOR GENERATING A REFERENCE SIGNAL FOR PHASE CALIBRATION OF A SYSTEM - A two-element array antenna system includes a first antenna element and a second antenna element. The first and second antenna elements respectively include first and second frequency multipliers. A transmitting, receiving, and processing (TRP) system is coupled to the first and second antenna elements via, respectively, a single first transmission element and a single second transmission element. The TRP system is configured to transmit to the first antenna element a first input signal at a sub-multiple of a first frequency, receive from the first frequency multiplier a first calibration signal based on the first input signal, transmit to the second antenna element a second input signal at a sub-multiple of the first frequency, receive from the second frequency multiplier a second calibration signal based on the second input signal, and determine, based on the calibration signals, a relative phase difference between the first and second transmission elements. | 10-14-2010 |
20120028587 | DUAL-FEED ANTENNA ARRAY WITH INTEGRAL COMPARISON CIRCUIT FOR PHASE AND AMPLITUDE CALIBRATION - A two-element array antenna system includes a first antenna element and a second antenna element. A transmitting, receiving, and processing (TRP) system is coupled to the first and second antenna elements via, respectively, a single first transmission element and a single second transmission element. The first and second transmission elements have respective transmit-path and receive-path functionality. The TRP system is configured to determine an amplitude offset and phase offset associated with the transmit-path functionality of the first and second transmission elements, and, based on data obtained during the determination of amplitude offset and phase offset associated with the transmit-path functionality of the first and second transmission elements, determine an amplitude offset and phase offset associated with the receive-path functionality of the first and second transmission elements. | 02-02-2012 |
20130015998 | MULTICHANNEL, MULTIMODE, MULTIFUNCTION L-BAND RADIO TRANSCEIVERAANM Jones; James B.AACI CarnationAAST WAAACO USAAGP Jones; James B. Carnation WA USAANM Meiyappan; PalAACI BellevueAAST WAAACO USAAGP Meiyappan; Pal Bellevue WA USAANM Ferguson; PaulAACI RedmondAAST WAAACO USAAGP Ferguson; Paul Redmond WA USAANM Virtue; MarkAACI KirklandAAST WAAACO USAAGP Virtue; Mark Kirkland WA USAANM Hastings; Thomas W.AACI WoodinvilleAAST WAAACO USAAGP Hastings; Thomas W. Woodinville WA US - Systems and methods for providing an improved multiradio system. An exemplary system includes first and second antennas and a first receiver that receives a signal from the first antenna, filters the received signal based on bandwidths associated with a traffic collision-avoidance system (TCAS), a transponder, and a universal access transceiver (UAT). The system digitizes the filtered signal and digitally downconverts the digitized signal. A second receiver receives a signal from the second antenna, filters the signal received from the second antenna based on the TCAS, the transponder, the UAT, and distance-measuring equipment (DME), separates the filtered signal into a first signal having a bandwidth associated with the TCAS, the transponder, the UAT and the lower half of the DME RF band, and into a second signal having a bandwidth associated with the upper half of the DME RF band, digitizes the first and second signal, and digitally downconverts the digitized first and second signals. | 01-17-2013 |
Patent application number | Description | Published |
20090012383 | Methods and systems for volume fusion in diagnostic imaging - Methods and systems for automatically fusing images are provided. The method includes acquiring scan data from a first imaging modality and fusing scan data from a second modality with the scan data from the first modality as scan data from the second modality is acquired and the method further includes displaying reconstructed images of the fused data. | 01-08-2009 |
20100054630 | SEMI-AUTOMATED REGISTRATION OF DATA BASED ON A HIERARCHICAL MESH - A registration image is aligned or registered with a reference image by user interaction. The registration image is segmented into a hierarchy of elements defining a mesh having more than one level. At each level, individual elements may be selected by the user, translated, rotated and scaled with respect to the remainder of the registration image and to the reference image. Refinement of the user registration is facilitated by allowing the user to define further levels in the segmentation where each of the elements at the further levels may be separately manipulated in a similar manner. Interpolation may be performed between the moved or altered elements and between the elements and the remainder of the registration image to obtain a more satisfactorily registered image. The technique may be used with other interpolation and registration processes. | 03-04-2010 |
20100322488 | APPARATUS AND METHOD FOR ISOLATING A REGION IN AN IMAGE - A system, method, and apparatus includes a computer readable storage medium with a computer program stored thereon having instructions that cause a computer to access a first anatomical image data set of an imaging subject acquired via a morphological imaging modality, access a functional image data set of the imaging subject acquired via a functional imaging modality, register the first anatomical image data set to the functional image data set, segment the functional image data set based on the functional image data set, define a binary mask based on the segmented functional image data set, and apply the binary mask to the first anatomical image data set to construct a second anatomical image data set and an image based thereon. The second anatomical image data set is substantially free of image data of the first anatomical image data set correlating to an area outside the region of physiological activity. | 12-23-2010 |