Low voltage data transmitting circuit and associated methods
First Claim
1. A low voltage data transmitting circuit (LVDTC) adapted to be connected to a first transmission line that transmits a first voltage signal to a receiver and a second transmission line that transmits a second voltage signal to the receiver, the LVDTC comprising:
- a first resistor coupled to the first transmission line;
a second resistor coupled to the second transmission line; and
a control unit coupled to the first transmission line and the second transmission line, the control unit being configured to control voltage levels of the first and second voltage signals such that the voltage levels of the first and second voltage signals are higher than a ground voltage level of the receiver,wherein the first and second voltage signals constitute a differential pair.
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Accused Products
Abstract
A low voltage data transmitting circuit (LVDTC) may be connected to a first transmission line that transmits a first voltage signal to a receiver and a second transmission line that transmits a second voltage signal to the receiver. The LVDTC includes a first resistor coupled to the first transmission line, a second resistor coupled to the second transmission line, and a control unit coupled to the first transmission line and the second transmission line, the control unit being configured to control voltage levels of the first and second voltage signals such that the voltage levels of the first and second voltage signals are higher than a ground voltage level of the receiver, wherein the first and second voltage signals may constitute a differential pair.
43 Citations
23 Claims
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1. A low voltage data transmitting circuit (LVDTC) adapted to be connected to a first transmission line that transmits a first voltage signal to a receiver and a second transmission line that transmits a second voltage signal to the receiver, the LVDTC comprising:
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a first resistor coupled to the first transmission line; a second resistor coupled to the second transmission line; and a control unit coupled to the first transmission line and the second transmission line, the control unit being configured to control voltage levels of the first and second voltage signals such that the voltage levels of the first and second voltage signals are higher than a ground voltage level of the receiver, wherein the first and second voltage signals constitute a differential pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A low voltage data transmitting circuit (LVDTC) adapted to be connected to a first transmission line that transmits a first voltage signal to a receiver, a second transmission line that transmits a second voltage signal to the receiver, the LVDTC comprising:
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a voltage regulator configured to receive a reference voltage for voltage signals that is used for data transmission to provide an output signal, and configured to control a voltage level of the output signal such that the voltage level of the output signal is higher than voltage levels of the first and second voltage signals; and an interface unit coupled between the voltage regulator and a ground voltage, the interface unit being configured to switch the output signal to provide the first and second voltage signals, and configured to provide a source termination resistance that is substantially the same as a characteristic impedance of the first and second transmission lines, wherein the first and second voltage signals constitute a differential pair. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of low voltage data transmission (LVDT), comprising:
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transmitting a first voltage signal to a receiver through a first transmission line; transmitting a second voltage signal to the receiver through a second transmission line, the first voltage signal and the second voltage signal constituting a differential pair; and controlling voltage levels of the first and second voltage signals such that the voltage levels of the first and second voltage signals are higher than a ground voltage level of the receiver. - View Dependent Claims (23)
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Specification