Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent
1986-10-07
1989-05-09
Shoop, Jr., William M.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
123198DC, G10L 502
Patent
active
048295795
ABSTRACT:
Confirmation of the existance of the proper operating conditions of a power tool is obtained by providing confirmation sensing means for sensing and confirming inspection and verification of the appropriate condition of each one of a plurality of preset operating conditions by the user, a confirmed state judging means for receiving the output of the completed confirmation sensing means and judging what operating conditions have been completely inspected and verified; a confirmation instructing means for informing the user of those operating conditions yet to be inspected and verified in response to the output of the confirmed state judging means; and, switching means for receiving the output of the confirmed state judging means and thereby allowing energization of the igniting circuit of the engine only after confirmation of all the preset operating conditions are completed and met.
REFERENCES:
patent: 4428685 (1984-01-01), Lemelson et al.
patent: 4494497 (1985-01-01), Uchida et al.
patent: 4542718 (1985-09-01), Hurner
patent: 4648364 (1987-03-01), Wills
Harada Ryuzo
Take Shigeo
Hoff Marc S.
Oppama Kogyo Kabushiki Kaisha
Shoop Jr. William M.
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