Title: Hand-held portable hearing screening apparatus utilized otoacoustic emissions
Application Number: 200610024502 Application Date: 2006.03.09
Publication Number: 1827040 Publication Date: 2006.09.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61B5/12,A61B5/00,A61F11/00,H04R3/00
Applicant(s) Name: Shanghai Jiao Tong University Address: 200240
Inventor(s) Name: Chai Xinyu, Xu Yufeng
Attorney & Agent: wang tilin wang guizhong
Abstract:
     There is a handholding portable acoustic emission screening examination appearance, which belongs to medical service appearance field. It contains a micro probe composed of a micro loudspeaker that is used to broadcast stimulation sound, a micro microphone that is used to distill acoustic emission signal and a electronic label that is used to probe information and protect product property through key management; A simulation manipulation part composed of micro loudspeaker volume regulating circuit, signal filtering treating circuit and signal multiple-stage enlargement circuit; A data processing part composed of digital-to-analog conversion circuit that is used to sample the distilled acoustic emission signal, high-speed data processing CMOS chip that is used to engender stimulation sound and control management menu, acoustic data storage, program storage and liquid crystalline display storage, RS232 asynchronous expansion serial port, USB interface, JTAG interface, etc. externally input/output and conjunction interfaces; And a keyboard used to display liquid crystalline display screen and input information. This invention is convenient to use, it has small bulk and is facilitating to take.
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