Method and device for generating a reference voltage
AssigneeInfineon Technologies AG
InventorAaron Nygren
Life of this patent
Estimating the term…
Abstract
A method and a device generate a reference voltage for discriminating between the logic states of a data signal received at a receiving end. A transmitting device transmits a continuous clock signal with a constant pulse period duration and a symmetrical sequence of low and high clock signal states in such a way that, at the receiver end, the clock signal has the same low and high voltage levels as the received data signal and it is subject to the same system-governed variations as the received data signal. An integrator at the receiver end receives and integrates the clock signal, and the integrated value becomes the reference voltage for the receiver unit.
Claims9
A method of generating a reference voltage, which comprises:
- electrically transmitting a data signal and a continuous clock signal from a transmitting part to a receiving part;
- the clock signal received at the receiving part being a continuous sequence of low and high clock signal states with a constant period duration, the clock signal received at the receiving part having low and high voltage levels corresponding to low and high levels of the data signal received at the receiving part, and the clock signal and the received data signal being subject to common system-governed electrical variations;
- and
- integrating the clock signal at the receiver part during a specific time duration prior to receiving the data signal and generating the reference voltage from the clock signal at the receiving part.
A device for generating a reference voltage for discriminating between logic states of a data signal, comprising:
- at least one receiver unit having an input for receiving the data signal and an input for receiving a continuous electrical clock signal formed of a sequence of low and high clock signal states;
- the electrical clock signal and the electrical data signal received by said receiver unit having mutually corresponding low and high voltage levels and being subject to mutually corresponding system-governed electrical variations as the received data signal;
- and
- an integrator for integrating the clock signal received at said receiver unit during a specific time duration prior to receiving the data signal and for generating the reference voltage from an integrated value of the clock signal.
Dependencies are inferred from the claim text.