Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Reexamination Certificate
2006-07-03
2010-11-09
Masih, Karen (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
C318S434000, C318S490000
Reexamination Certificate
active
07830107
ABSTRACT:
A safety device for power window comprises a storage unit for storing the pulse width change rate of continuous pulses detected by a pulse width detector during a window glass raising operation at a reference timing, a calculation unit for calculating the pulse width change rate of continuous pulses detected by the pulse width detector during a window glass raising operation at an operational timing and a control unit for comparing the stored value of a pulse width change rate with the calculated value of a pulse width change rate and driving a motor for raising/lowering window glass in a window opening direction when a total of differences between the both pulse change rates exceeds an allowable value.
REFERENCES:
patent: 2007/0110125 (2007-05-01), Fujita et al.
Fujimura Yoshihiro
Hirose Kazushi
Inoue Satoshi
Inoue Takashi
Kato Masayuki
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Masih Karen
Shiroki Kogyo Co., Ltd.
Tachibana ELETECH Co., Ltd.
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