Abstract: Methods and devices provide for remote management of a local computer by transferring screen frames produced by the local computer for viewing at a remote computer. A digital video signal from a local computer may be duplicated and scaled so that screen frame data corresponding to the screen frames produced by the local computer is passed through a network, such as the Internet, to the remote computer where the remote computer produces a display that contains the screen frames being transferred.

Abstract: Methods and circuits detect operational information about DC fans powered by pulse width modulation, such as detecting fan presence in a device and/or detecting rotational speed. Output pulses produced by the fan related to the rotational speed are utilized to produce temporary reductions of voltage at the input of a control circuit. The control circuit may count the temporary reductions per unit of time to detect the speed. A pull down resistor may be coupled to the input to pull the input to a continuously low voltage when the DC fan is not present to otherwise provide a pull up at the input, and the control circuit may detect a missing fan from the continuously low voltage. Additionally, or alternatively, a secondary voltage may be provided to the DC fan in addition to the pulse width modulation while a consistently high voltage is provided to the input of the control circuit.

Abstract: Adapters, computer systems, and methods utilize a signal pass-through for input devices to the computer system. The pass-through occurs through an adapter for the computer system that provides a housing having a first and second connector. The first connector can be connected to the input connector of the computer, such as a PS/2 connector. The second connector can be connected to a connector of the input device, such as another PS/2 connector. A cable extends from the housing so that signals from the input device are transferred through the second connector and away from the housing while signals to the computer are transferred to the housing and ultimately through the first connector to the computer. Another device, such as a network device, may be connected to the other end of the cable to receive the input device signal, receive input signals from other sources such as a network, and then deliver an input signal back to the computer through the cable and first connector.

Abstract: Adapters, computer systems, and methods utilize a signal pass-through for input devices to the computer system. The pass-through occurs through an adapter for the computer system that provides a housing having a first and second connector. The first connector can be connected to the input connector of the computer, such as a PS/2 connector. The second connector can be connected to a connector of the input device, such as another PS/2 connector. A cable extends from the housing so that signals from the input device are transferred through the second connector and away from the housing while signals to the computer are transferred to the housing and ultimately through the first connector to the computer. Another device, such as a network device, may be connected to the other end of the cable to receive the input device signal, receive input signals from other sources such as a network, and then deliver an input signal back to the computer through the cable and first connector.