Invention Grant
US09315047B2 Velocity estimation methods, and imaging devices and printing devices using the methods
有权
速度估计方法，成像装置和打印装置的使用方法
- Patent Title: Velocity estimation methods, and imaging devices and printing devices using the methods
- Patent Title (中): 速度估计方法，成像装置和打印装置的使用方法
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Application No.: US13872299Application Date: 2013-04-29
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Publication No.: US09315047B2Publication Date: 2016-04-19
- Inventor: Liron Iton , Oren Haik , Oded Perry , Tal Frank
- Applicant: HEWLETT-PACKARD INDIGO B.V.
- Applicant Address: NL Maastricht
- Assignee: Hewlett-Packard Indigo B.V.
- Current Assignee: Hewlett-Packard Indigo B.V.
- Current Assignee Address: NL Maastricht
- Main IPC: B41J11/42
- IPC: B41J11/42 ; B41J29/393 ; B41J13/26 ; B41J13/32 ; B41J15/04 ; B41J11/00
Abstract:
A method of determining the velocity of relative displacement between a substrate and an image sensor, for example the velocity of displacement of a page relative to a scanner, involves imaging a reference pattern on the substrate, using the image sensor, while the relative displacement occurs between the substrate and the image sensor. The reference pattern includes plural crossing points marked at predetermined locations on the substrate, each crossing point formed of a first line portion crossing a second line portion. Locations in the image that correspond to the crossing points are compared to the predetermined locations on the substrate and the velocity of the relative displacement between the image sensor and the substrate is determined using relationships between the predetermined locations and the detected locations in the generated image.
Public/Granted literature
- US20140320565A1 Velocity Estimation Methods, and Imaging Devices and Printing Devices using the Methods Public/Granted day:2014-10-30
Information query
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