The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 1989
Filed:
Feb. 29, 1988
Aisin Seiki Kabushikikaisha, Aichi, JP;
Abstract
An onboard air discharge system includes a first electrode mounted on each of a plurality of onboard seats of a vehicle. A second electrode is disposed in relation to each of the first electrodes such that at least part of a personnel who is seated upon a seat on which the first electrode is mounted is interposed between the both electrodes. The presence or absence of a personnel is detected for each seat on the basis of a change in the capacitance formed between the first and the second electrode. Air ejection toward the seat for which the absence of a personnel has been determined is inhibited. When a personnel is seated upon a seat, there occurs a large change in the capacitance formed between the first and the second electrode. Such change depends on the dielectric permittivity of a personnel, and hence is greatly different from a corresponding change which would occur when a baggage or the like is placed on the seat, thus enhancing the accuracy with which the presence or absence of a personnel on the seat is detected. The air ejection is controlled on such reliable information indicating the presence or absence of a personnel, and hence the efficiency of air ejection is improved with an increased reliability.