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公开(公告)号：US09855777B2
公开(公告)日：2018-01-02
申请号：US15453614
申请日：2017-03-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
CPC classification number: B41J29/38 , B41J2/04535 , B41J2/04565 , B41J2/0458 , B41J2/04586 , B41J2202/17 , G06F21/62
Abstract: A fluid ejection device includes a plurality of analog devices, and a storage element storing an authentication value including a plurality of bits, a first bit of the plurality of bits based on measured electrical characteristics of a first subset of the analog devices, and a second bit of the plurality of bits based on measured electrical characteristics of a second subset of the analog devices, the second subset different from the first subset.
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公开(公告)号：US20170225476A1
公开(公告)日：2017-08-10
申请号：US15498224
申请日：2017-04-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Erik D. Ness , Huston W. Rice , Brendan Hall
IPC: B41J2/175
CPC classification number: B41J2/17546 , B41J2/17503 , B41J2/17526 , B41J2/17553
Abstract: Encryption of fluid cartridges for use with imaging devices is disclosed herein. One disclosed apparatus includes a memory of a fluid cartridge comprising a plurality of sequential bits, where the plurality of sequential bits are written to the memory after the plurality of sequential bits are transformed based on scrambling bits of the plurality of sequential bits, and a memory interface of the fluid cartridge to enable access to the memory to authenticate the fluid cartridge.
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公开(公告)号：US10112425B2
公开(公告)日：2018-10-30
申请号：US15822325
申请日：2017-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
Abstract: A fluid ejection device includes a plurality of analog devices, and a storage element storing an authentication value based on electrical characteristics of a subset of the plurality of analog devices.
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Patent Agency Ranking
4.发明授权公开(公告)号：US09630400B2
公开(公告)日：2017-04-25
申请号：US15029555
申请日：2013-10-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
CPC classification number: B41J29/38 , B41J2/04535 , B41J2/04565 , B41J2/0458 , B41J2/04586 , B41J2202/17 , G06F21/62
Abstract: A print head die includes a storage element. The print head die includes a plurality of analog devices. The storage element is to store an authentication value. The authentication value is generated based on comparisons of the measured electrical characteristics of at least some of the analog devices.
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公开(公告)号：US20180086122A1
公开(公告)日：2018-03-29
申请号：US15822325
申请日：2017-11-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
CPC classification number: B41J29/38 , B41J2/04535 , B41J2/04565 , B41J2/0458 , B41J2/04586 , B41J2202/17 , G06F21/62
Abstract: A fluid ejection device includes a plurality of analog devices, and a storage element storing an authentication value based on electrical characteristics of a subset of the plurality of analog devices.
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公开(公告)号：US20170173985A1
公开(公告)日：2017-06-22
申请号：US15453614
申请日：2017-03-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
IPC: B41J29/38
CPC classification number: B41J29/38 , B41J2/04535 , B41J2/04565 , B41J2/0458 , B41J2/04586 , B41J2202/17 , G06F21/62
Abstract: A fluid ejection device includes a plurality of analog devices, and a storage element storing an authentication value including a plurality of bits, a first bit of the plurality of bits based on measured electrical characteristics of a first subset of the analog devices, and a second bit of the plurality of bits based on measured electrical characteristics of a second subset of the analog devices, the second subset different from the first subset.
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7.发明申请AUTHENTICATION VALUE FOR PRINT HEAD DIE BASED ON ANALOG DEVICE ELECTRICAL CHARACTERISTICS 有权基于模拟设备电气特性的打印头戴机的认证价值公开(公告)号：US20160229179A1
公开(公告)日：2016-08-11
申请号：US15029555
申请日：2013-10-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daryl E. Anderson , Huston W. Rice , Eric T. Martin
CPC classification number: B41J29/38 , B41J2/04535 , B41J2/04565 , B41J2/0458 , B41J2/04586 , B41J2202/17 , G06F21/62
Abstract: A print head die includes a storage element. The print head die includes a plurality of analog devices. The storage element is to store an authentication value. The authentication value is generated based on comparisons of the measured electrical characteristics of at least some of the analog devices.
Abstract translation: 打印头模具包括存储元件。 打印头模具包括多个模拟装置。 存储元件用于存储认证值。 基于至少一些模拟设备的测量电特性的比较来产生认证值。
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公开(公告)号：US09815289B2
公开(公告)日：2017-11-14
申请号：US15498224
申请日：2017-04-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Erik D. Ness , Huston W. Rice , Brendan Hall
CPC classification number: B41J2/17546 , B41J2/17503 , B41J2/17526 , B41J2/17553
Abstract: Encryption of fluid cartridges for use with imaging devices is disclosed herein. One disclosed apparatus includes a memory of a fluid cartridge comprising a plurality of sequential bits, where the plurality of sequential bits are written to the memory after the plurality of sequential bits are transformed based on scrambling bits of the plurality of sequential bits, and a memory interface of the fluid cartridge to enable access to the memory to authenticate the fluid cartridge.
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