Title:
SYSTEM AND METHOD FOR GENERATING A DEFINED PULSE
Document Type and Number:
WIPO Patent Application WO/2011/028682
Kind Code:
A3
Abstract:
Apparatus for generating a first signal (e.g., a pulse) including a current source adapted to generate a current based on a second signal that defines an amplitude of the current and a third signal that defines the timing of an amplitude change of the current, and an impedance element through which the current flows to generate the first signal. The impedance element may comprise a resonator having a resonant frequency approximate the center of the first signal frequency spectrum. An LO may be used to generate the third signal to control the timing of the amplitude change of the current. A detector may enable the current source in response to detecting a defined steady-state condition of the LO clock signal, and may disable the current source in response to the completion of the first signal. A controller may generate the second signal to control the current amplitude so as to perform power control and/or other functions.
Inventors:
SEGORIA ANTHONY F (US)
GARCIA JORGE A (US)
GARCIA JORGE A (US)
Application Number:
PCT/US2010/047247
Publication Date:
June 16, 2011
Filing Date:
August 31, 2010
Export Citation:
Assignee:
QUALCOMM INC (US)
SEGORIA ANTHONY F (US)
GARCIA JORGE A (US)
SEGORIA ANTHONY F (US)
GARCIA JORGE A (US)
International Classes:
H04B1/69; G06F1/02; H03K5/07; H03K7/04; H04L25/03
Foreign References:
| US20080061871A1 | 2008-03-13 | |||
| US20060038710A1 | 2006-02-23 | |||
| EP2034686A2 | 2009-03-11 | |||
| US5059977A | 1991-10-22 |
Other References:
JAEJIN JUNG ET AL: "Design of a 6 bit 1.25 GS/s DAC for WPAN", CIRCUITS AND SYSTEMS, 2008. ISCAS 2008. IEEE INTERNATIONAL SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 18 May 2008 (2008-05-18), pages 2262 - 2265, XP031271940, ISBN: 978-1-4244-1683-7
Attorney, Agent or Firm:
VO, Dang M. (San Diego, California, US)
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