Patent ID: 7037265

Claim:
A method for conducting harmonic imaging without using a matched decoding and compressing filter comprising: transmitting a coded pulse having a time bandwidth product greater than about 1 and a phase inverted version of said coded pulse; receiving at least a backscattered echo of said coded pulse and at least a backscattered echo of said phase inverted version of said coded pulse; decoding said backscattered echo of said coded pulse and said backscattered echo of said phase inverted version of said coded pulse, wherein said decoding occurs naturally through: A. propagation of at least said coded pulse and said phase inverted version of said coded pulse inside tissue; and B. said coherent summation of said backscattered echo of said coded pulse with said backscattered echo of said phase inverted version of said coded pulse; and coherently summing said at least a backscattered echo of said coded pulse with said at least a backscattered echo of said phase inverted version of said coded pulse.