Impulse waveform generating apparatus

Details Impulse waveform generating apparatus Impulse waveform generating apparatus

2007-01-16

2007-01-16

Le, Lana (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S255000, C455S076000, C455S260000, C455S265000, C331S018000

Reexamination Certificate

active

10841595

ABSTRACT:
An impulse waveform generating apparatus comprises an oscillator for generating a reference signal having a center frequency in a frequency band of an impulse to generate, a timing matching circuit for shifting a phase of the reference signal by 90 degrees, a frequency demuultiplier for dividing a frequency of the phase shift signal and obtaining a timing signal having a frequency component having a frequency width of an impulse to generate, a memory storing a waveform shape table, a waveform forming section for forming a waveform in synchronism with the timing signal, according to information of a shape table having a predetermined waveform, a low-pass filter for obtaining an envelope signal from an output signal of the waveform forming section, and a waveform generating section for changing an amplitude of the reference signal according to a value of the envelope signal.

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Ultra-Wideband Technology for Short- or Medium-Range Wireless Communications by Jeff Foerster, et al., Intel Technology Journal Q2, 2001.

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