| US 7,456,382 B2 | ||
| Load sensor, method of detecting load and pedestrian protection system | ||
| Takashi Inamoto, Nagoya (Japan); Koji Ohtaka, Anjo (Japan); Motomi Iyoda, Seto (Japan); Yujiro Miyata, Kariya (Japan); Ryotaro Kachu, Nishikamo-gun (Japan); and Hiroyuki Takahashi, Nishikamo-gun (Japan) | ||
| Assigned to Denso Corporation, Kariya (Japan) | ||
| Filed on Oct. 28, 2005, as Appl. No. 11/260,679. | ||
| Claims priority of application No. 2004-314239 (JP), filed on Oct. 28, 2004. | ||
| Prior Publication US 2006/0091299 A1, May 04, 2006 | ||
| Int. Cl. G06M 7/00 (2006.01); H03F 3/08 (2006.01); H03G 3/20 (2006.01); G08B 13/18 (2006.01) | ||
| U.S. Cl. 250—221 [250/214 A; 250/214 AG; 340/555] | 8 Claims |
| 1. A load sensor comprising:
first means for providing an output signal that draws a non-linear input load curve with a change in magnitude of a shock
caused by a hit on an object;
second means including a plurality of amplifiers having respective prescribed gains and being connected with said first means
to provide respective linear functions, whereby each of the linear functions corresponds to a portion of the input load curve
at a prescribed gain and together with the other linear functions forms an approximation of the input load curve; and
third means for converting the linear functions to digital data.
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