Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SIGNAL PROCESSOR, SIGNAL PROCESSING METHOD, AND COMPUTER PROGRAM
Document Type and Number:
Japanese Patent JP2007108070
Kind Code:
A
Abstract:

To compare measured physical quantity with a reference value in real time as much as possible.

A CPU (Central Processing Unit) 106 generates a reference value (effective value) of sound pressure level and outputs it to a DSP (Digital Signal Processor) 105. The DSP 105 generates a measurement value (effective value) of sound pressure level, compares the generated measurement value (effective value) of sound pressure level with the reference value (effective value) of sound pressure level input from the CPU 106, and outputs a signal indicating the compared result to a display device 110. Thus, the measurement value (effective value) of sound pressure level can be compared with the reference value (effective value) of sound pressure level every sample synchronously with sampling frequency in an A/D converter 104. Therefore, the measurement value and reference value of sound pressure level can be compared with each other in real time as much as possible.


More Like This:
JPS5865622METHOD OF DETECTING VOID IN RUBBER OF PLASTIC-COATED ROLL
JPS54151076DEVICE FOR ESTIMATING EXPOSURE TO NOISES
Inventors:
AMANUMA TEIJI
SUGAWARA HIDETOSHI
ARIMA SOJI
YOSHIZAWA KIMISUKE
HASEGAWA SHOICHI
Application Number:
JP2005300557A
Publication Date:
April 26, 2007
Filing Date:
October 14, 2005
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ONO SOKKI CO LTD
International Classes:
G01H3/00
Domestic Patent References:
JPS5248869U1977-04-07
JPH11289232A1999-10-19
JPH09166663A1997-06-24
JP2005252817A2005-09-15
JP2003348179A2003-12-05
JP2001317993A2001-11-16
JPH09266098A1997-10-07
JPH11118592A1999-04-30
JPH11326426A1999-11-26
Foreign References:
WO2003044466A12003-05-30
EP1775557A12007-04-18
US5754449A1998-05-19
WO2001050098A12001-07-12
US6122959A2000-09-26
US6098463A2000-08-08
Attorney, Agent or Firm:
Takayoshi Kokubun



 
Previous Patent: エレベータ装置

Next Patent: ON-VEHICLE DEVICE