Abstract: A Flash-interfaced Fingerprint Sensor is disclosed. The sensor device interfaces directly with a flash memory interface chip. The flash memory interface chip incorporates the system for interfacing with flash memory devices, a fingerprint sensor/detector system, and an encryption subsystem for encrypting data being passed to and from the flash memory devices and the host computing device. The device further employs an advanced encryption approach that entails fingerprint decryption and verification on the host computer rather than on the portable memory apparatus. Once verification at the host computer is complete, memory and host functionality is enabled.

Abstract: A Video and Audio Front End Assembly and Method. The device and method of this invention takes advantage of the hardware improvements available in personal computing machines that enable higher speed bus communications and much greater computational capacity. The system converts many of the processes needed to convert analog video and audio inputs so that they are displayable by a personal computer from a hardware integrated circuit to a set of software routines. The system combines a simplified hardware front-end interface between the computer and the analog input signals and a very flexible set of software applications running on the host computer. The hardware front end employs an integrated circuit device that is much lower in complexity and cost than the conventional audio/video decoder integrated circuit.

Abstract: A High-speed Current Mode Analog to Digital Converter is disclosed. The ADC is high-speed, yet is manufacturable at a relatively low cost. The device processes an analog signal through a plurality of successive approximation ADC subcircuits cooperatively arranged to operate in parallel, time-interleaved fashion. The ADC subcircuits operate in current mode rather than voltage mode in order to further accelerate their operations and provide lower cost. Finally, the SDC subcircuits each employ a novel current mode digital-to-analog converter.