Multi-phase signal generator and method

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing

Reexamination Certificate

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C327S144000, C327S155000, C327S158000

Reexamination Certificate

active

07911245

ABSTRACT:
A multi-phase signal generators and methods for generating multi-phase signals are described. In one embodiment, a clock generator generates quadrature signals including those having 90, 180, 270 and 360 degrees phase difference with a first signal. The rising edge of an intermediate signal is compared with the rising edges of two of the other signals to generate an UP and DN pulse signal, respectively. The UP and DN signals are used to adjust the delay of a delay line producing the signals to synchronize the signals. In some embodiments, a reset signal generator is used to truncate the UP or DN signal pulse.

REFERENCES:
patent: 6304116 (2001-10-01), Yoon et al.
patent: 7084686 (2006-08-01), Zimlich
patent: 7106655 (2006-09-01), Lee
patent: 7426145 (2008-09-01), Lee et al.
patent: 2008/0252340 (2008-10-01), Yeo et al.
patent: 2010/0085099 (2010-04-01), Ma
patent: 2010/0103746 (2010-04-01), Ma
Ki-Won Lee et al.; “A 1.5-V 3.2 Gb/s/pin Graphic DDR4 SDRAM With Dual-Clock System, Four-Phase Input Strobing, and Low-Jitter Fully Analog DLL”; IEEE Journal of Solid-State Circuits, vol. 42; No. 11; Nov. 2007; pp. 2369-2377.

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