Stephen D Panshin from 1420 Hillcrest Dr, Corvallis, OR 97330, age 61, Phone: (541)7524290

Replaceable Printer Component Including Memory Storing Data Defined By Tags And Sub-Tags
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US Patent:

20110157647, Jun 30, 2011
Filed:

May 29, 2008
Appl. No.:

12/994445
Inventors:

Stephen D. Panshin - Corvallis OR, US
Jacob Grundtvig Refstrup - Vancouver WA, US
Jefferson P. Ward - Brush Prairie WA, US
International Classification:

G06F 15/00
US Classification:

358 115
Abstract:

A replaceable printer component includes a memory and a communication link. The memory is configured to store data in each of a plurality of portions of the memory. Each portion is defined by a tag. Within a first portion of the memory defined by a first tag, the data within the first portion is stored in a plurality of sub-portions of the first portion. Each sub-portion is defined by a sub-tag. The communication link is configured to communicatively link the memory to a printer controller when the replaceable printer component is installed in a printing system.

Replaceable Printer Component Including A Memory Storing A Tag Encryption Mask
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US Patent:

20110176175, Jul 21, 2011
Filed:

May 29, 2008
Appl. No.:

12/994756
Inventors:

Stephen D. Panshin - Corvallis OR, US
Jefferson P. Ward - Brush Prairie WA, US
David B. Novak - Philomath OR, US
Glenn McCloy - Corvallis OR, US
Brian L. Helterline - Salem OR, US
International Classification:

G06K 15/02
US Classification:

358 116
Abstract:

A replaceable printer component includes a memory and a communication link The memory stores a tag encryption mask and data. The data is stored in a plurality of portions of the memory where each portion is defined by a tag. The tag encryption mask indicates an encryption status of each portion of the memory defined by a tag. The communication link is configured to communicatively link the memory to a printer controller when the replaceable printer component is installed in a printing system.

Partition Map
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US Patent:

20110187771, Aug 4, 2011
Filed:

Apr 15, 2011
Appl. No.:

13/087619
Inventors:

Brian L. Helterline - Salem OR, US
Jefferson P. Ward - Bush Prairie WA, US
Stephen D. Panshin - Corvallis OR, US
Joseph H. Bauman - Brush Prairie WA, US
International Classification:

B41J 29/38
US Classification:

347 6
Abstract:

An imaging material supply cartridge uses a partition map to identify access modes and encryption attributes.

Secure Upgrade Supplies And Methods
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US Patent:

20130169992, Jul 4, 2013
Filed:

Sep 8, 2010
Appl. No.:

13/821917
Inventors:

Stephen D. Panshin - Corvallis OR, US
Jefferson P. Ward - Brush Prairie WA, US
David B. Novak - Pilomath OR, US
International Classification:

G06K 15/00
US Classification:

358 114
Abstract:

Example secure upgrade supplies and methods are disclosed. A disclosed example secure upgrade method includes receiving a request at an imaging supply () for an authentication credential associated with the imaging supply (), providing the authentication credential to an image forming apparatus (), the provided authentication credential useable by the image forming apparatus () to authenticate an identity of the imaging supply (), and providing upgrade data () to the image forming apparatus, the provided upgrade data () authenticatable at the image forming apparatus () based on the identity of the imaging supply (), and useable by the image forming apparatus () to enable a capability of the image forming apparatus ().

Logic Circuitry
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US Patent:

20220348022, Nov 3, 2022
Filed:

Jul 14, 2022
Appl. No.:

17/864662
Inventors:

- Spring TX, US
Scott A. LINN - Corvallis OR, US
Stephen D. PANSHIN - Corvallis OR, US
Jefferson P. WARD - Vancouver WA, US
David Owen ROETHIG - Vancouver WA, US
David N. OLSEN - Corvallis OR, US
Anthony D. STUDER - Corvallis OR, US
Michael W. CUMBIE - Corvallis OR, US
Sirena Chi LU - Corvallis OR, US
International Classification:

B41J 2/175
B41J 29/393
G01L 23/08
G06F 13/42
G06F 21/44
G06K 15/00
B33Y 50/00
G03G 15/08
G06K 15/10
Abstract:

A logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The logic circuit may be configured to identify, from a command stream received from the print apparatus, parameters including a class parameter, and/or identify, from the command stream, a read request, and output, via the interface, a count value in response to a read request, the count value based on identified received parameters.

Logic Circuitry Package For Print Apparatus
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US Patent:

20230109232, Apr 6, 2023
Filed:

Apr 20, 2020
Appl. No.:

17/802390
Inventors:

- Spring TX, US
Stephen D, Panshin - Corvallis OR, US
Kyle Michel - Vancouver WA, US
Assignee:

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. - Spring TX
International Classification:

G06F 21/60
G06F 13/42
H04L 9/32
Abstract:

A logic circuitry package for a print apparatus includes a serial data bus interface to interface with a serial data bus, the logic circuit to respond to messages from the print apparatus over the serial data bus directed to a number of different addresses using different component keys for cryptographic authentication corresponding to each different address, the different component keys related to at least one master key of the print apparatus. The logic circuitry package further includes control logic which, in response to a session initiation request message on the serial data bus from the print apparatus, is to establish a secure communication session related to one of the different addresses, the control logic to cryptographically authenticate responses to each subsequent message of the secure communication session from the print apparatus using a component key corresponding to the address.

Logic Circuitry Package
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US Patent:

20210405946, Dec 30, 2021
Filed:

Oct 25, 2019
Appl. No.:

16/959397
Inventors:

- spring TX, US
Stephen D. PANSHIN - Corvallis OR, US
Assignee:

HEWLETT-PACKARD DEVELOPMENT COMPANY, LP. - Spring TX
International Classification:

G06F 3/12
Abstract:

A logic circuitry package for a replaceable print apparatus component includes an interface including a power terminal and at least one logic circuit. The at least one logic circuit is configured to respond to communications sent to a first address via the interface and respond to communications sent to a second address via the interface. The at least one logic circuit is configured to in response to a first command sent to the first address, draw a first current on the power terminal; and in response to a hibernate command sent to the first address, respond to communications sent to the second address and draw a second current on the power terminal less than the first current.

Supply Authentication Via Timing Challenge Response
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US Patent:

20210379902, Dec 9, 2021
Filed:

Aug 18, 2021
Appl. No.:

17/405638
Inventors:

- Spring TX, US
Stephen D. Panshin - Corvallis OR, US
International Classification:

B41J 2/175
H04L 9/32
G06F 21/44
H04L 29/06
G06F 7/58
Abstract:

In an example implementation, a print supply cartridge comprises a microcontroller to receive a timing challenge and enable authentication of the cartridge by providing a challenge response. The challenge response is provided in a challenge response time that falls within an expected time window.

Stephen D Panshin