Rheostat
AssigneesHon Hai Precision Industry Co., Ltd., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
InventorSHENG-YI LI
Life of this patent
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Abstract
A rheostat includes a connection port, a variable resistor, a controller and a display. The connection port is electrically connected to a computer and configured for receiving a control signal of the computer. The variable resistor is electrically connected to a circuit board. The controller is electrically connected to the connection port and the variable resistor and is configured for changing a resistance value of the variable resistor according to the control signal. The display is electrically connected to the controller and displaying the resistance value.
Claims10
A rheostat comprising:
- a connection port electrically connected to a computer and configured for receiving a control signal of the computer;
- a variable resistor electrically connected to a circuit board;
- a controller electrically connected to the connection port and the variable resistor and configured for changing a resistance value of the variable resistor according to the control signal;
- and
- a display electrically connected to the controller and displaying the resistance value.
Dependencies are inferred from the claim text.