Ultrasound measurement apparatus

Details Ultrasound measurement apparatus Ultrasound measurement apparatus

2005-07-19

2005-07-19

Jaworski, Francis J. (Department: 3737)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C600S453000, C367S090000, C367S101000

Reexamination Certificate

active

06918875

ABSTRACT:
An ultrasound wave is transmitted from a probe (120) to a moving reflector (130) and the reflected ultrasound wave is received back by the same probe (120). With n-divided wave bands of the to-be-used spectrum, the ultrasound wave to be transmitted is made up of up chirp signals and down chirp signals from n number of down chirp signal generators (112, 113) and up chirp signal generators (116, 117), creating complementary multiplexed chirp signals through synthesizers (114, 118). Cross-correlation is taken by a correlator between the reception signal received at the probe (120) and the up chirp and the down chirp signals, respectively, so as to provide compressed up and down signals and then combining the obtained compressed signals through synthesizers (144, 148). Doppler measurement is performed by determining the correlation distance through taking the cross-correlation between these compressed signals by a cross-correlator (160) and performing envelope detection by an envelope detector (170).

REFERENCES:
patent: 4388622 (1983-06-01), Fletcher, Jr.
patent: 5022400 (1991-06-01), Walters
patent: 5966169 (1999-10-01), Bullis
patent: 6087981 (2000-07-01), Normant et al.
patent: 6108273 (2000-08-01), Hossack et al.
patent: 6786097 (2004-09-01), Song et al.
patent: 03-162837 (1991-07-01), None
patent: 05-281342 (1993-10-01), None
Tortoli et al. “Velocity Profile Reconstruction Using Ultrafast Spectral Analysis of Doppler Ultrasound” IEEE Transactions on Sonics and Ultrasonics, pp. 555-561, vol., SU-32, No. 4, Piero Tortoli, Gianfranco Manes, and Carlo Atzeni (Jul. 1985).

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