Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Output switching noise reduction
Reexamination Certificate
2006-07-11
2006-07-11
Le, Don (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Output switching noise reduction
C326S082000
Reexamination Certificate
active
07075330
ABSTRACT:
A signal balancing circuit for capacitively coupled signaling between transmitting and receiving devices over a plurality of capacitively coupled signal lines on which data signals are transmitted from the transmitting device to the receiving device. The signal balancing circuit includes an encode circuit for forcing a signal transition of a data signal for a data interval in response to the data signal maintaining the same logic state throughout a respective time interval. A balancing signal is generated having a logic level and a timing relative to the time intervals of the respective data signals indicative of inversion of a particular data signal. A decode circuit coupled to the encode circuit to receive the balancing signal forces a transition of the transitioned signal at the appropriate time in accordance with the balance signal to recover the original logic level of the data signal.
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Dorsey & Whitney LLP
Le Don
Micro)n Technology, Inc.
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