Boots – shoes – and leggings
Patent
1994-11-22
1997-09-23
Trammell, James P.
Boots, shoes, and leggings
36455101, 364557, 364574, 340587, 356433, G08B 1700, G08B 2918
Patent
active
056711590
ABSTRACT:
A fire detecting apparatus is designed to have improved reliability by reducing the possibility that the apparatus is influenced by an environmental change, external noise or the like which would otherwise cause erroneous fire information to be sent to a receiving unit to generate a false alarm. The apparatus includes a light emitting device for detecting a physical quantity of a fire phenomena such as smoke, a light receiving device, an A/D conversion circuit, a RAM for successively storing a predetermined number of latest detection outputs from the A/D conversion circuit, an MPU for calculating deviations between the predetermined number of latest detection outputs stored in the RAM and for calculating an average value of at least two of the detection outputs having the smallest deviation, and a transmitting/receiving circuit for sending the average value calculated by the MPU as a physical quantity of the fire phenomenon,
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patent: 4803469 (1989-02-01), Matsushita
patent: 4884222 (1989-11-01), Nagashima et al.
patent: 5237512 (1993-08-01), Davidson
1991 IEEE International Carnahan Conference on Security Technology, Oct. 3, 1991, G. Pfister, pp. 253-260, "Trends Toward the Optimum Danger Detection System".
Nohmi Bosai Ltd.
Shah Kamini S.
Trammell James P.
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