Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Patent
1994-12-02
1997-06-17
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
327129, 327299, 327233, 333100, H03K 513
Patent
active
056401124
ABSTRACT:
A clock signal distributing system supplies clock signals exhibiting extremely matched phases as a standing wave without employing extra signals such as a reference signal and the like other than clock signal itself. The system compensates for a phase lag in clock signal sand attenuation in signal amplitude. As a result, clock signals exhibiting extremely matched phases are supplied up to the places to be distributed at the respective terminals without requiring equal-length wiring on, for example, a semiconductor chip. The clock signal distributing system is composed of an electromagnetic transmission path line which transmits periodic clock signals as a standing wave, an amplifier, and a phase advancing unit which advances phases of the periodic clock signals wherein a phase lag in transmission of clock signals and a phase lag in amplitude of the amplifier are corrected in the phase advancing direction by the phase advancing unit.
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Goto Eiichi
Honma Noriyuki
Callahan Timothy P.
Fujitsu Limited
Hitachi , Ltd.
International Business Machines - Corporation
Lam T.
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