Abstract: A video interface device, the device including a camera; an optically transparent enclosure, the enclosure configured to enclose the camera and configured for sanitization; a height-adjustable mount connected to the optically transparent enclosure; a computer display connected to the height-adjustable mount; and a cart connected to the height-adjustable mount, wherein the camera and the computer display are configured to facilitate communication with at least one remote system. A method of constructing a video interface device, including enclosing a first camera in an optically-transparent enclosure, the enclosure being configured for sanitization; attaching the first camera in the optically-transparent enclosure to a height-adjustable mount; attaching a computer display to the height-adjustable mount; and attaching a cart to the height-adjustable mount, such that the first camera and the computer display are configured to facilitate communication with at least one remote system.

Abstract: A method of transmitting audio signals is disclosed. The method includes, receiving a multi-channel analog audio signal, converting the analog audio signal to a digital audio signal with a first sample bit length and a first sample rate, providing a header for each discrete sample of the digital audio signal to produce a sample packet with a second sample bit length, frequency shift key (FSK) encoding the sample packets on first and second audio transmission frequencies, and transmitting the sample packets.

Abstract: An apparatus for conditioning signals output from a computer system expansion card to a computer system board to test system board bus specifications and timing limits. The apparatus comprises two signal conditioning extension cards which are used to condition signals from a slave card and a bus master card. The signal conditioning extension cards according to the present invention are interposed between the bus master or slave expansion card and the system board and selectively advance or delay the signals output from the expansion card to the system board. The slave signal conditioning card also selectively delays the read data valid window of the slave card to test the limits of the system board. The bus master signal conditioning card selectively delays the write data valid window of the bus master card to test the limits of the system board.

Abstract: Method and apparatus for determining nets among nodes in a circuit board that includes applying a potential to a reference conducting surface oriented with respect to the board; measuring a parameter of an electrical response at a node of interest; and comparing the measurements to determine a plurality of nets among the nodes. The tentative net list developed from the measured parameters is then verified using continuity testing.