Abstract: A method for reducing noise on a power distribution network of a printed circuit board includes determining whether a given data signal may be a problematic data signal. The given data signal is issued onto a signal distribution network of the printed circuit board if the given data signal is determined to not be a problematic data signal. The given data signal is encoded into an encoded data signal if the given data signal is determined to be a problematic data signal, and the encoded data signal is issued onto the signal distribution network.

Abstract: A flexible keyboard formed from a grid of flexible wires. Crosspoints between the wires are used to define characters to be selected via the keyboard. The characters are selected by pressing at a location, pressing two wires against one another.

Abstract: A system, apparatus and method are provided for using an imaging device for surveillance. According to one embodiment, a sensor is triggered when a situation occurs, the triggered sensor is detected, the imaging device is turned in the direction of the triggered sensor, and the imaging device is activated to capture an image.

Abstract: An apparatus and method to compensate for variations in effective electrical impedance of a digital bus having plurality of transmission lines in a very large scale integrated circuit includes bus driver circuitry, which comprises a plurality of transistors coupled to an output node that is connected to a corresponding one of the transmission lines. Control circuitry is utilized to selectively enable/disable the transistors, thereby adjusting the driver impedance of the bus driver circuitry so as to match a state of the digital bus.

Abstract: A bus termination voltage supply. The invented voltage supply provides an output voltage from an input voltage using biasing and isolation circuits. A voltage isolation circuit couples an input voltage node to an output node to provide the output voltage. The isolation circuit includes a transistor driver element which is coupled to the input voltage node and the output node. The voltage supply also includes a biasing circuit having a voltage divider and a bias transistor. The voltage divider has a first voltage divider element coupling the output node to a voltage divider node. The voltage divider has a second voltage divider element coupling the voltage divider node to a second voltage supply node. The bias transistor couples a control input of the transistor driver element to the second voltage supply node under the control of a bias transistor control input coupled to the voltage divider node.