US 10,890,651 B2
Transmit/receive system for imaging devices
Luigi Franchini, Rimini (IT); Roberto Alini, Dublin, CA (US); and Filippo Cevini, Campbell City, CA (US)
Assigned to Maxim Integrated Products, Inc., San Jose, CA (US)
Filed by Maxim Integrated Products, Inc., San Jose, CA (US)
Filed on May 7, 2018, as Appl. No. 15/972,668.
Application 15/972,668 is a continuation of application No. 14/456,546, filed on Aug. 11, 2014, granted, now 9,971,026.
Application 14/456,546 is a continuation of application No. 13/077,252, filed on Mar. 31, 2011, granted, now 8,804,457, issued on Aug. 12, 2014.
Prior Publication US 2018/0252801 A1, Sep. 6, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 7/00 (2006.01); G01S 7/52 (2006.01); A61B 8/00 (2006.01); G01S 15/89 (2006.01)
CPC G01S 7/52017 (2013.01) [A61B 8/56 (2013.01); A61B 8/587 (2013.01); G01S 7/52004 (2013.01); G01S 7/52025 (2013.01); G01S 15/8906 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmit/receive system for an imaging device, the transmit/receive system comprising:
a transmit circuit configured to generate and output test pulses to a transducer of a probe to cause the probe to propagate an ultrasonic wave through an object; and
a receive circuit configured to
receive, from the transducer, a composite signal that includes (i) the test pulses output by the transmit circuit and (ii) a reflected signal, wherein the reflected signal corresponds to reflected waves sensed by the transducer in response to the ultrasonic wave propagated through the object, and
filter the test pulses from the composite signal and output the reflected signal in accordance with a predetermined minimum frequency of the reflected signal.