Patent ID: 9743908
Date: 2017-08-29
CPC Classifications: A61B,G01S

Claim:
1. A processing system for confocally emitting and receiving ultrasound comprising: an electrical-signal emitting and receiving analytic device configured to generate a first driving electrical signal; at least one first ultrasound transducer coupled to said electrical-signal emitting and receiving analytic device, configured to receive said first driving electrical signal and to emit at least one first ultrasound signal having a main frequency to a reflection position according to said first driving electrical signal, and configured to reflect said at least one first ultrasound signal to form at least one second ultrasound signal by an object at said reflection position as a start point; and at least one second ultrasound transducer coupled to said electrical-signal emitting and receiving analytic device, configured to retrieve from said at least one second ultrasound signal a first analyzed signal whose frequency lower than said main frequency, and to eliminate other signals from said at least one second ultrasound signal, configured to convert said first analyzed signal into at least one first analogous signal, and to transmit said at least one first analogous signal to said electrical-signal emitting and receiving analytic device, and said at least one first ultrasound transducer and said at least one second ultrasound transducer are arranged on a spherically-curved surface and arranged at an identical side of said object, and said at least one first ultrasound transducer and said at least one second ultrasound transducer are confocally and coaxially arranged with each other and have an identical focal position as said reflection position, and said electrical-signal emitting and receiving analytic device configured to retrieve first energy of a first fixed bandwidth of said first analyzed signal by said at least one first analogous signal, and when said first energy is larger than a predetermined value, said electrical-signal emitting and receiving analytic device configured to stop generating said first driving electrical signal.