Patent ID: 7969218

Claim:
A receiver configured to reduce intersymbol interference of at least one data transmission channel and compensate for signal gain loss, comprising: a high pass filter; a Schmitt trigger controlled by a plurality of first control signals and a plurality of second control signals, the Schmitt trigger being configured to compare a first signal from the high pass filter to a first power supply voltage in response to the plurality of first control signals and the plurality of second control signals, and to generate a first output signal and a second output signal; a controller configured to generate the plurality of first control signals and the plurality of second control signals; and an amplifier configured to receive the first output signal and the second output signal, and to generate an output signal of the receiver, wherein the Schmitt trigger includes: first and second resistors having first terminals to which a second power supply voltage is applied; a first NMOS transistor having a drain connected to a second terminal of the first resistor to output the second output signal, and a gate to which the first signal from the high pass filter is applied; a second NMOS transistor having a drain connected to a second terminal of the second resistor to output the second output signal, and a gate to which the first power supply voltage is applied; a third NMOS transistor having a drain connected to the second terminal of the first resistor, and a gate to which the first output signal is applied; a fourth NMOS transistor having a drain connected to the second terminal of the second resistor, and a gate to which the second output signal is applied; a first trigger voltage controller connected to the sources of the first and second NMOS transistors and a ground voltage source, and controlled by the plurality of second control signals; and a second trigger voltage controller connected to the sources of the third and fourth NMOS transistors and the ground voltage source, and controlled by the plurality of first control signals.