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    • 3. 发明授权
    • Postage printing system for printing both postal and non-postal documents
    • 用于印刷邮政和非邮政文件的邮资打印系统
    • US08527285B2
    • 2013-09-03
    • US11476284
    • 2006-06-28
    • Frederick W. Ryan, Jr.Robert A. CorderyBertrand Haas
    • Frederick W. Ryan, Jr.Robert A. CorderyBertrand Haas
    • G06Q10/00G06F17/00G06F21/00G06G7/00
    • G07B17/0008G07B2017/00153G07B2017/00588
    • A method for printing secure source images of the type that contain specific critical elements and non-secure images on a single printer includes determining the origin of an image (secure source or non-secure source). If the image to be printed is from the non-secure source, a determination is made if the image contains the specific critical elements of the type contained in secure source images. Printing of the image from the non-secure source is disabled if the image contains specific critical elements of the type contained in secure source images. Printing of the image from a non-secure source is enabled if the image does not contain specific critical elements of the type contained in the secure image. The determination if the non-secure source image contains the specific critical elements of the type contained in secure source images can be made after printing has commenced of the non-secure image.
    • 用于在单个打印机上打印包含特定关键元素和非安全图像的类型的安全源图像的方法包括确定图像的来源(安全源或非安全源)。 如果要打印的图像来自非安全源,则确定图像是否包含安全源图像中包含的类型的特定关键元素。 如果图像包含安全源图像中包含的类型的特定关键元素,则禁用从非安全源打印图像。 如果图像不包含安全图像中包含的类型的特定关键元素,则会启用来自非安全源的映像的打印。 如果非安全源图像包含安全源图像中包含的类型的特定关键元素,则可以在打印开始非安全图像之后进行确定。
    • 7. 发明授权
    • Method and system for securing communications in a metering device
    • 用于确保计量装置中通信的方法和系统
    • US08208633B2
    • 2012-06-26
    • US12276523
    • 2008-11-24
    • Robert A. CorderyFrederick W. Ryan, Jr.Yassir Nawaz
    • Robert A. CorderyFrederick W. Ryan, Jr.Yassir Nawaz
    • H04L9/00
    • G06F21/608G06F21/606H04L9/0662H04L9/0869H04L9/3242
    • A method and system for securing the communication link between the accounting device and printer of a metering system by authenticating the data being sent via the link utilizing a Nonlinear Feedback Shift Register (NLFSR) based system is provided. A NLFSR is provided in each of the accounting unit and printing unit of a metering system. The NLFSR in the accounting unit is utilized to generate a message authentication code (MAC) for the image data being sent from the accounting unit to the printing unit. The printing unit generates a corresponding MAC for the received image data using the NLFSR in the printing unit. The MAC generated by the printing unit is compared with the MAC generated by the accounting unit. If the MACs are similar, the image data is accepted as authentic and the printing unit will print the image corresponding to the image data.
    • 提供了一种用于通过基于非线性反馈移位寄存器(NLFSR)的系统认证通过链路发送的数据来确保计费系统的计费装置和打印机之间的通信链路的方法和系统。 在计量系统的每个计帐单元和打印单元中都提供一个NLFSR。 会计单元中的NLFSR用于生成从计费单元发送到打印单元的图像数据的消息认证码(MAC)。 打印单元使用打印单元中的NLFSR为接收的图像数据生成相应的MAC。 由打印单元生成的MAC与由计帐单元生成的MAC进行比较。 如果MAC相似,则图像数据被接受为真实的,并且打印单元将打印与图像数据相对应的图像。