公开(公告)号：US06254212B1

公开(公告)日：2001-07-03

申请号：US08860686

申请日：1997-07-02

Applicant: Pascal Coudray ,  Marie-Hélène Froger ,  Christophe Truffaut

Inventor： Pascal Coudray ,  Marie-Hélène Froger ,  Christophe Truffaut

IPC: B41J2195

CPC classification number: G01F23/284 ,  B41J2/17566 ,  G01F23/266 ,  G01F23/268

Abstract: A device determines a quantity of product present in a reservoir, particularly a quantity of ink in the reservoir (112) of an image forming device, such as a printer (10). The device includes an electrode (120) disposed in contact with the product in the reservoir, a circuit (117) for supplying the electrode with an excitation signal (SE) causing an electromagnetic signal radiated by the product, a receiving antenna (116) for sensing the electromagnetic signal, and a circuit (115) for processing the electromagnetic signal sensed into a signal representing the quantity of product present in the reservoir.

Abstract translation: 装置确定储存器中存在的产品的数量，特别是图像形成装置（例如打印机（10））的储存器（112）中的油墨量。 该装置包括与储存器中的产品接触设置的电极（120），用于向电极提供产生由产品辐射的电磁信号的激励信号（SE）的电路（117），用于 感测电磁信号的电路（115），以及用于将感测到的电磁信号处理成表示存储在存储器中的产品数量的信号的电路（115）。

公开(公告)号：US06185515B2

公开(公告)日：2001-02-06

申请号：US09104265

申请日：1998-06-25

Applicant: Marie-Hélène Froger ,  Pascal Coudray ,  Mickaël Lorgeoux

Inventor： Marie-Hélène Froger ,  Pascal Coudray ,  Mickaël Lorgeoux

IPC: G01F2326

CPC classification number: B41J2/17553 ,  B41J2/17566 ,  G01F23/266

Abstract: The object of the invention is the detection of a given threshold (optionally zero) for filling, with an electrically conductive product, a reservoir made of electrically insulating material having a storage cavity connected to an outlet channel. An excitation signal is applied to the cavity, in periodic square waves, and a measurement signal is taken off, one characteristic of which varies substantially with the quantity of product contained in the cavity reaches the filling threshold. From this characteristic, by comparison with a reference threshold, a binary signal C,C′ is derived, which is filtered digitally whilst multiplying it (convolution product) by a signal which is identical to it, but with a delay equal to a multiple, at least equal to one, of the period of the square waves.

Abstract translation: 本发明的目的是检测给定的阈值（可选地为零）以用导电产品填充由具有连接到出口通道的存储腔的电绝缘材料制成的储存器。 激励信号以周期性方波施加到空腔，并且取消测量信号，其中的一个特征随着空腔中包含的产品的数量达到填充阈值而显着变化。 根据该特征，通过与参考阈值进行比较，导出二进制信号C'C'，其被数字滤波，同时将它（卷积积）乘以与其相同但具有等于倍数的延迟的信号， 至少等于一个方波的周期。

公开(公告)号：US6089688A

公开(公告)日：2000-07-18

申请号：US104267

申请日：1998-06-25

Applicant: Marie-Helene Froger ,  Pascal Coudray

Inventor： Marie-Helene Froger ,  Pascal Coudray

IPC: G01F23/26 ,  B41J2/195 ,  G03G15/00

CPC classification number: G01F23/265 ,  G01F23/266

Abstract: In order to monitor the consumption of a normally electrically conductive product contained in a reservoir made of electrically insulating material, a measurement procedure is defined according to which there is taken off a measurement signal in response to an excitation signal applied to a storage cavity in this reservoir, this signal being such that a characteristic, such as the voltage, of the measurement signal varies substantially with the quantity of product contained in the cavity, and with a utilisation parameter of this product. A procedure for determining this utilisation parameter and a processing procedure giving an item of information on the quantity of product remaining in the reservoir as a function not only of the said characteristic but also of the instantaneous value of the utilisation parameter, are also defined. In the field of printing, this parameter can be the density of printing of the printed pages, or the temperature.

Abstract translation: 为了监测包含在由电绝缘材料制成的储存器中的正常导电产品的消耗，定义了测量程序，根据该测量程序，响应于施加到储存空腔的激励信号，该测量信号被取消 该信号使得测量信号的特性（例如电压）随着包含在空腔中的产品的数量以及本产品的使用参数而显着变化。 还定义了用于确定该利用参数的程序和给出关于储存器中剩余的产品数量的信息项的处理过程，不仅是所述特性而且是利用参数的瞬时值的函数。 在打印领域，此参数可以是打印页面的打印浓度或温度。