Abstract: A cellular phone or tablet computer device includes a front face having a display screen, a back cover opposite the front face, and componentry between the front face and back cover. The back cover is metallic and includes pieces of metal separated from one another by electrical insulation.

Abstract: A transparent wireless bridge for providing access to an optical fiber network comprises a first transceiver outside a building and configured to transmit/receive communication signals to and from the optical fiber network. A first glass sheet attached to an outer side of a window comprises a first antenna communicatively coupled to the first transceiver and configured to transmit and receive communication signals to and from the first transceiver. A second glass sheet is attached to an inner side of the window and comprises a second antenna configured to wirelessly transmit and receive communication signals to and from the first antenna. The wireless bridge also includes a second transceiver located inside the building that is communicatively coupled to the second antenna and configured to wirelessly transmit and receive data to and from the second antenna. The wireless bridge may also be used in conjunction with a wireless drop system.

Abstract: A transparent wireless bridge for providing access to an optical fiber network comprises a first transceiver outside a building and configured to transmit/receive communication signals to and from the optical fiber network. A first glass sheet attached to an outer side of a window comprises a first antenna communicatively coupled to the first transceiver and configured to transmit and receive communication signals to and from the first transceiver. A second glass sheet is attached to an inner side of the window and comprises a second antenna configured to wirelessly transmit and receive communication signals to and from the first antenna. The wireless bridge also includes a second transceiver located inside the building that is communicatively coupled to the second antenna and configured to wirelessly transmit and receive data to and from the second antenna. The wireless bridge may also be used in conjunction with a wireless drop system.

Abstract: A refractometer assembly comprises a waveguide plate, a diagnostic light source, a photodetector, and a light absorption plate. The diagnostic light source and the photodetector are optically coupled to the waveguide plate such that at least a portion of light emitted from the diagnostic light source is subject to internal reflection at a diagnostic surface of the waveguide plate prior to reaching the photodetector when an analyte film of unknown refractive index n0 forms an optical interface with the diagnostic surface of the waveguide plate. The light absorption plate is configured to absorb light reaching the light absorption plate without undergoing internal reflection at the diagnostic surface when the analyte film forms an optical interface with the diagnostic surface of the waveguide plate. The refractometer assembly defines an optical system where variations in the unknown refractive index n0 are related to variations in a detection signal generated by the photodetector.

Abstract: A transparent wireless bridge for providing access to an optical fiber network comprises a first transceiver outside a building and configured to transmit/receive communication signals to and from the optical fiber network. A first glass sheet attached to an outer side of a window comprises a first antenna communicatively coupled to the first transceiver and configured to transmit and receive communication signals to and from the first transceiver. A second glass sheet is attached to an inner side of the window and comprises a second antenna configured to wirelessly transmit and receive communication signals to and from the first antenna. The wireless bridge also includes a second transceiver located inside the building that is communicatively coupled to the second antenna and configured to wirelessly transmit and receive data to and from the second antenna. The wireless bridge may also be used in conjunction with a wireless drop system.

Abstract: A refractometer assembly comprises a waveguide plate, a diagnostic light source, a photodetector, and a light absorption plate. The diagnostic light source and the photodetector are optically coupled to the waveguide plate such that at least a portion of light emitted from the diagnostic light source is subject to internal reflection at a diagnostic surface of the waveguide plate prior to reaching the photodetector when an analyte film of unknown refractive index n0 forms an optical interface with the diagnostic surface of the waveguide plate. The light absorption plate is configured to absorb light reaching the light absorption plate without undergoing internal reflection at the diagnostic surface when the analyte film forms an optical interface with the diagnostic surface of the waveguide plate. The refractometer assembly defines an optical system where variations in the unknown refractive index n0 are related to variations in a detection signal generated by the photodetector.