Abstract: One example includes a security device system. The system includes a constrained environment housing and operational components configured to implement a security function. The system further includes an integrated circuit (IC) configured to implement a 256-bit Advanced Encryption Standard (AES-256) encryption algorithm, the IC comprising fewer than 5,000 gate equivalents and operating at a power of less than 1.5 microwatts to be accommodated in the constrained environment housing.

Abstract: A method of operating a speech synthesizing conversation agent involves operating an audio interface to receive caller audio signal during a call session. The method generates an audio transcript from the caller audio signal through operation of a sentiment analysis engine configured by a sentiment model. The method communicates the audio transcript to a user interface switch. The method operates the speech synthesizer engine. The speech synthesizer engine generates a response signal for the caller audio signal and the audio transcript through operation of response logic engine configured by the historical conversation data. The speech synthesizer engine generates a synthesized audio response with ambient signal and a synthesized user model response from the response signal through operation of a speech synthesis model configured by the historical conversation data. The method communicates the synthesized audio response to the caller audio signal through the audio interface during the call session.

Abstract: A method of operating a speech synthesizing conversation agent involves operating an audio interface to receive caller audio signal during a call session. The method generates an audio transcript from the caller audio signal through operation of a sentiment analysis engine configured by a sentiment model. The method communicates the audio transcript to a user interface switch. The method operates the speech synthesizer engine. The speech synthesizer engine generates a response signal for the caller audio signal and the audio transcript through operation of response logic engine configured by the historical conversation data. The speech synthesizer engine generates a synthesized audio response with ambient signal and a synthesized user model response from the response signal through operation of a speech synthesis model configured by the historical conversation data. The method communicates the synthesized audio response to the caller audio signal through the audio interface during the call session.