Abstract: A mounting system configured to mount a personal electronic device (PED) in an aircraft flight deck is provided. The mounting adapter includes: an annunciator light including an LED strip for providing an annunciation regarding the PED; a display disable system mounted within the mounting adapter for disabling the PED display; and a controller configured to: obtain a captured frame of the PED display; send the captured frame to a server for determining whether a problem exists with an image displayed on the PED display; and responsive to receiving an annunciation indicator from the server indicating that the problem exists with the image displayed on the PED display, enable the display disable system to shut off the PED display and command the annunciator light to illuminate in a particular color that indicates that the PED display was shut off because the problem exists with the image displayed on the PED display.

Abstract: A method for verifying the integrity, continuity, and availability (ICA) of information displayed on an uncertified display is disclosed. The method includes creating application data for display on the uncertified display device that includes a subliminal symbol that is periodically embedded in a few out of multiple tens of frames and that is camouflaged in the application data using steganography; transmitting the application data to the uncertified display device for display; receiving images of the application data displayed on the display screen; determining whether the subliminal symbol is detected in the captured images by extracting the symbol from the captured images and comparing the extracted symbol to an expected symbol; determining that the application data is not corrupted when the extracted symbol matches the expected symbol; and identifying a loss of ICA when the subliminal symbol is not detected or does not match the expected symbol.

Abstract: A method for verifying the integrity, continuity, and availability (ICA) of information displayed on an uncertified display is disclosed. The method includes creating application data for display on the uncertified display device that includes a subliminal symbol that is periodically embedded in a few out of multiple tens of frames and that is camouflaged in the application data using steganography; transmitting the application data to the uncertified display device for display; receiving images of the application data displayed on the display screen; determining whether the subliminal symbol is detected in the captured images by extracting the symbol from the captured images and comparing the extracted symbol to an expected symbol; determining that the application data is not corrupted when the extracted symbol matches the expected symbol; and identifying a loss of ICA when the subliminal symbol is not detected or does not match the expected symbol.

Abstract: A mounting system configured to mount a personal electronic device (PED) in an aircraft flight deck is provided. The mounting adapter includes: an annunciator light including an LED strip for providing an annunciation regarding the PED; a display disable system mounted within the mounting adapter for disabling the PED display; and a controller configured to: obtain a captured frame of the PED display; send the captured frame to a server for determining whether a problem exists with an image displayed on the PED display; and responsive to receiving an annunciation indicator from the server indicating that the problem exists with the image displayed on the PED display, enable the display disable system to shut off the PED display and command the annunciator light to illuminate in a particular color that indicates that the PED display was shut off because the problem exists with the image displayed on the PED display.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a receiver wireless device receives, from a transmitter wireless device, a wireless signal comprising a plurality of modulated symbols forming at least one packet, determines a quantification of impairments associated with the plurality of modulated symbols of the wireless signal, the impairments caused by the receiver wireless device, the transmitter wireless device, or both, determines a remembrance factor based on the quantification of the impairments, and demodulates the plurality of modulated symbols of the wireless signal based on a number of previously demodulated symbols, wherein the number of previously demodulated symbols is based on the remembrance factor.

Abstract: In general, techniques are described for limiters used in wireless transmitters. A transmitter comprising a frontend circuit and a backend circuit may perform various aspects of the limiter techniques. The frontend circuit may obtain a data symbol of a plurality of data symbols representative of data to be transmitted wirelessly, and determine an amplitude and a phase representative of the data symbol. The frontend circuit may also transform the phase to a frequency, compare the frequency to a threshold frequency, and adjust, based on the comparison of the frequency to the threshold frequency, the frequency to obtain an adjusted frequency. The backend circuit configured may obtain, based on the amplitude and the adjusted frequency, a wireless signal, and transmit the wireless signal.

Abstract: A coaxial connector system includes a first coaxial connector having a first center contact and at least one outer contact segment. The coaxial connector system includes a second coaxial connector mated with the first coaxial connector. The second coaxial connector has a second center contact terminated to the first rectangular center contact. The second coaxial connector has at least one outer contact segment mechanically and electrically connected to the at least one outer contact segment of the first coaxial connector.

Abstract: A coaxial connector system includes a first coaxial connector having a first center contact and at least one outer contact segment. The coaxial connector system includes a second coaxial connector mated with the first coaxial connector. The second coaxial connector has a second center contact terminated to the first rectangular center contact. The second coaxial connector has at least one outer contact segment mechanically and electrically connected to the at least one outer contact segment of the first coaxial connector.

Abstract: An inexpensive, lightweight, compressible, shock absorbing, and resilient fluid for use in padding applications is presented. A fluid pad can comprise closed-cell foam beads and a surrounding fluid housed in a thin plastic bladder. The closed-cell foam beads can be exactly flooded by the fluid. Alternatively, the fluid can lubricate the closed-cell foam beads. The surrounding fluid may also comprise solid phase microballoons. The addition of the closed-cell foam beads can result in the overall fluid in the bladder being lighter in weight. The fluid pad with the closed-cell foam beads can be compressible and resilient. The fluid pad with the closed-cell foam beads can be shock absorbing with respect to impact loads or vibrations. The addition of the closed-cell foam beads can lower the cost of the fluid pad insert.

Abstract: An inexpensive, lightweight, compressible, shock absorbing, and resilient fluid for use in padding applications is presented. A fluid pad can comprise closed-cell foam beads and a surrounding fluid housed in a thin plastic bladder. The closed-cell foam beads can be exactly flooded by the fluid. Alternatively, the fluid can lubricate the closed-cell foam beads. The surrounding fluid may also comprise solid phase microballoons. The addition of the closed-cell foam beads can result in the overall fluid in the bladder being lighter in weight. The fluid pad with the closed-cell foam beads can be compressible and resilient. The fluid pad with the closed-cell foam beads can be shock absorbing with respect to impact loads or vibrations. The addition of the closed-cell foam beads can lower the cost of the fluid pad insert.

Abstract: The digital predistorter multiplies the input signal with coefficients obtained from look-up tables. To reduce the amount of storage required, the coefficients are stored in partial form and are either reconstituted by addition of a constant (44, FIG. 3b) prior to application to the input signal or the retrieved coefficients are applied directly to the input signal and the resulting modified signal is then combined with the original input signal (34, FIG. 2a).

Abstract: A multi-layered flooring composite with an acoustic underlayment. In one embodiment, the acoustic underlayment or layer includes a plurality of discrete beads of substantially elastic, resilient material. Portions of adjacent beads abut one another and other portions of the adjacent beads are spaced from each other. In the preferred embodiment, substantially all of the adjacent beads are integrally joined together at their abutting portions. The beads preferably have substantially truncated spherical shapes and are made of closed cell foam.

Abstract: The control scheme uses the input and output signals of an amplifier (10) to control a lineariser (24) operating on the amplifier (10). The input and output signals are sensed and used to develop assay signals that have ideal inter-relationships when the amplifier is operating as desired. The control scheme modifies the operation of the lineariser to account for any departures observed in the relationships.

Abstract: Where a DSP is used to predistort the input to a radio frequency power amplifier (RF PA) in the digital domain, then the DSP can also be used to perform a mathematical clipping operation on the input signal. This means that unwanted distortion is not introduced via the clipping process.