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US 7,600,175 B2Granted
Integrated digital circuit and a method for operating a digital circuit
AssigneeInfineon Technologies AG
InventorChristoph Werner
Life of this patent
Estimating the term…
Abstract
In an integrated digital circuit, at least one derived data signal is generated from a data signal that is to be transmitted via a line of the digital circuit, by inverting at least two bits of the data signal. The circuit is also provided with an evaluation unit for evaluating the susceptibility of the data signal and the derived data signal, or of derived data signals to interference caused by a capacitive coupling of the line to at least one neighboring line.
Claims23
An integrated digital circuit, comprising:
- a line for transmitting data signals with several bits,
- a coding unit for producing at least one derived data signal from a data signal to be transmitted over the line by changing the bit sequence of the data signal to be transmitted such that the derived signal contains the same bits as the data signal but arranged in a different order;
- an evaluation unit for evaluating the susceptibility of the data signal and the derived data signal to interference caused by a capacitive coupling of the line with at least one neighboring line;
- and
- a transmitter for outputting data signals onto the line, and which transmits the one of the data signal and the derived data signal which has been evaluated by the evaluation unit as having the least susceptibility to interference as caused by capacitive coupling.
2 more elements
A method for operating an integrated digital circuit, comprising:
- producing at least one derived data signal from a data signal to be transmitted over a line of the digital circuit by exchanging the bit sequence such that the derived signal contains the same bits as the data signal but arranged in a different order;
- determining susceptibility of the data signal to be transmitted and the derived data signal to interference caused by capacitive coupling of the line to at least one neighboring line;
- selecting from the data signal to be transmitted and each derived data signal that data signal which is least susceptible to interference as caused by capacitive coupling;
- and
- transmitting the selected data signal on the line.
2 more elements
Dependencies are inferred from the claim text.