Abstract: The disclosed systems, structures, and methods are directed to a superposition based transceiver. The configurations presented herein employ a plurality of encoders configured to encode a plurality of input digital data streams, wherein each of the plurality of input digital data streams operates at different data rates, a plurality of modulators configured to modulate the plurality of encoded digital data input streams. In addition, a plurality of transmitter filters configured to perform up-sampling and filtering of the plurality of modulated digital data streams, and a signal mixer configured to combine the plurality of up-sampled and filtered digital data streams into a single aggregate digital data stream in a manner such that the single aggregate digital data stream contains spectral characteristics that substantially conform to both a central area and a skirt area of a unified spectral emission mask, as specified by European Telecommunications Standards Institute (ETSI).

Abstract: The disclosed systems, structures, and methods are directed to a superposition based transceiver. The configurations presented herein employ a plurality of encoders configured to encode a plurality of input digital data streams, wherein each of the plurality of input digital data streams operates at different data rates, a plurality of modulators configured to modulate the plurality of encoded digital data input streams. In addition, a plurality of transmitter filters configured to perform up-sampling and filtering of the plurality of modulated digital data streams, and a signal mixer configured to combine the plurality of up-sampled and filtered digital data streams into a single aggregate digital data stream in a manner such that the single aggregate digital data stream contains spectral characteristics that substantially conform to both a central area and a skirt area of a unified spectral emission mask, as specified by European Telecommunications Standards Institute (ETSI).

Abstract: A picture password interface is displayed to generate a password for a web service that accepts text passwords to help users more easily remember their passwords. In response to receiving user input at a picture displayed in the picture password interface, values from an associated cipher key are identified. These identified values are then combined into a user key based on an order and location at which the user input was received. The user key is then combined with a web service key to generate a password that is specific to the user and specific to the web service that the user is attempting to access. The generated password can be verified to ensure that it complies with any password complexity rules for the web service.

Abstract: A picture password interface is displayed to generate a password for a web service that accepts text passwords to help users more easily remember their passwords. In response to receiving user input at a picture displayed in the picture password interface, values from an associated cipher key are identified. These identified values are then combined into a user key based on an order and location at which the user input was received. The user key is then combined with a web service key to generate a password that is specific to the user and specific to the web service that the user is attempting to access. The generated password can be verified to ensure that it complies with any password complexity rules for the web service.