Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Bus or line termination
Reexamination Certificate
2007-04-17
2007-04-17
Cho, James H. (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Bus or line termination
C326S031000, C333S032000
Reexamination Certificate
active
11086979
ABSTRACT:
The circuits and methods are provided for impedance termination on an integrated circuit. A network of resistors are formed on an integrated circuit (IC) to provide on-chip impedance termination to differential input/output (IO) pins. Transistors are coupled in the network of termination resistors. The transistors provide additional termination impedance to the differential IO pins. The transistors can be turned ON or OFF separately to change the impedance termination.
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Nguyen Khai
Sung Chiakang
Wang Bonnie I.
Altera Corporation
Cho James H.
Townsend and Townsend / and Crew LLP
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