Active termination circuit for computer interface use
November 7, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3237164 3715725 3803554 Low power transmission line terminator Switching arrangement for remote-controlled electrical loads Protective load disconnect unit for remote load control systems Integrated circuit interconnection structure having precision terminating resistors Resistively matched microwave PIN diode switch Bus system with address and status conductors Apparatus for addressably controlling remote units InventorAssigneeApplicationNo. 06/927989 filed on 11/07/1986US Classes:333/22R, DISSIPATING TERMINATIONS FOR LONG LINES326/30, Bus or line termination (e.g., clamping, impedance matching, etc.)326/90Bus drivingExaminersPrimary: Gensler, PaulInternational ClassesH03H 11/02 (20060101)H03H 11/28 (20060101) AbstractAn active termination circuit for a computer interface for reducing line reflection of logic signals. A first and second resistor combination is permanently connected to a cable that couples a plurality of peripheral devices to one another. The other ends of the first and second resistors are connected through a switching device to a positive voltage supply line and to logic ground, respectively. That switching device may be a transistor. When termination of multiple devices is required, a plurality of resistor combinations is provided but on/off control of the switch is achieved by one control that is located remote from the termination circuit.Other References
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