Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2007-03-05
2010-06-29
Nguyen, Hai L (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S294000
Reexamination Certificate
active
07746144
ABSTRACT:
The pulse generator comprises: a delay line arranged to receive a digital input signal and to produce a plurality of delay line output signals; first and second pulse generator blocks comprising logic circuitry arranged to generate a plurality of successive first output pulses in response to said different delay line output signals; and pulse combiner circuitry arranged to combine said first output pulses to produce second output pulses. The first pulse generator block is arranged to be responsive to rising edges of said input signal, and the second pulse generator blocks is responsive to falling edges of said input signal. Thus, both rising and falling edges of said input signal are used to create pulses. The device can be used in impulse radio transmitters and receivers.
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Takahide Terada, et al. (Department of Electronics and Electrical Engineering, Keio University, Yokohama, Japan), “A CMOS Impulse Radio Ultra-Wideband Transceiver for 1Mb/s Data Communications and ±2.5cm Range Findings”, 2005 Symposium on VLSI Circuits Digest of Technical Papers, Jun. 16-18, 2005, pp. 30-33.
Cairo Ignasi
Ikeda Masayuki
Jimenez Jose Luis Gonzalez
Ojeda Enrique Barajas
Pena Diego Mateo
Harness & Dickey & Pierce P.L.C.
Nguyen Hai L
Seiko Epson Corporation
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