Method and apparatus for an equalizing buffer

Details Method and apparatus for an equalizing buffer Method and apparatus for an equalizing buffer

2006-11-21

2006-11-21

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S089000, C327S063000, C327S065000, C327S067000, C326S115000, C326S117000, C326S119000, C326S121000

Reexamination Certificate

active

07138835

ABSTRACT:
A programmable, equalizing buffer is provided having feedback transistors used to vary the transfer function of the equalizing buffer, such that a low pass response of a transmission channel is substantially equalized. A zero in the buffer's transfer function is established by a conductive state of transistors caused by signal feedback. Multiple transistors establish increased flexibility for establishing the location of the zero, while a cascade of buffer stages provides a second order transfer function effective to cancel second order channel effects.

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