Title:
DIGITAL RECEIVING FOCUSING DEVICE
Document Type and Number:
Japanese Patent JP3867068
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a digital receiving focusing device which can design a hardware configuration efficiently by using an analog multiplexer and handle a lot of channel signals with a simple structure.
SOLUTION: A lot of channel modules 21a-21d, a circuit element 37a which handles an output signal from the many channel modules 21a-21d and forms a receiving focusing beam, 37b, 39, 40, and 41 are included. Each of the lot of channel modules 21a-21d provides analog multiplexers 22a-22d which receive and multiplex ultrasonic signals from at least two or more channels, and FIR (far infrared) filter & MUX (multiplexer) 29a which converts the multiplexed ultrasonic signals to digital signals, processes and compensates the digital signals.
Inventors:
Vemho
Application Number:
JP2003278051A
Publication Date:
January 10, 2007
Filing Date:
July 23, 2003
Export Citation:
Assignee:
MEDISON CO.,LTD.
International Classes:
A61B8/00; G01N29/26; G01S7/52; H04R3/00; G01S7/521; (IPC1-7): A61B8/00; G01N29/26; H04R3/00
Domestic Patent References:
| JP6114061A | ||||
| JP8056944A |
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Hideki Takahashi