The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1993
Filed:
Oct. 24, 1991
Charles A Reynolds, West Haven, CT (US);
Other;
Abstract
A multi-transducer Doppler ultrasound monitor system is disclosed in which a multiplexed switch is interposed between the ultrasound transducers and a single transmitter and receiver of the type utilized used to drive a single transducer and to process the signal produced by that transducer, respectively. This switch has a plurality of inputs, each of which receives a connection to one of the transducers, and a single output which is connected to the transmitter and receiver, and it is effective to connect each input, in sequence, to the output on a time-shared basis. A track & hold circuit is provided at the output of a demodulator following the receiver. This circuit has a single input and a plurality of outputs, each corresponding to one of the multiplex switch inputs. The track & hold circuit distributes the signal at the output of the demodulator in sequence to each of the circuit outputs. In this manner, a single set of electronics can be utilized for a plurality of transducers.