CRUM APPARATUS TO EXTRACT POWER FROM CLOCK SIGNAL HAVING FIRST AND SECOND PERIODS

Title:

CRUM APPARATUS TO EXTRACT POWER FROM CLOCK SIGNAL HAVING FIRST AND SECOND PERIODS

Document Type and Number:

WIPO Patent Application WO/2019/203396

Kind Code:

A1

Abstract:

A CRUM apparatus includes a power extraction circuit that extracts power from a high value of a clock signal received from an image forming apparatus, and a control circuit activated by the power extracted by the power extraction circuit. The clock signal has high and low values alternately repeated in a first period in a data section and the high and low values alternately repeated in a second period different from the first period in a pause section. When the second period is changed to a fourth period in an idle section in which data transmission is prepared, the control circuit determines transmission and reception of a data signal to and from the image forming apparatus is to be performed at a third period different from the first period for a second data section after the idle section.

Inventors:

JO DAE HO (KR)
KIM YOUN JAE (KR)

Application Number:

PCT/KR2018/008684

Publication Date:

October 24, 2019

Filing Date:

July 31, 2018

Export Citation:

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Assignee:

HP PRINTING KOREA CO LTD (KR)

International Classes:

B41J29/38; H04L7/027

Domestic Patent References:

WO2015065081A1

2015-05-07

Foreign References:

US9665059B2	2017-05-30
JP2013218199A	2013-10-24
KR19980060407U	1998-11-05
KR20090028497A	2009-03-18
KR920000500A	1992-01-29
EP2869133A1	2015-05-06
JP2013218199A	2013-10-24
US20090222664A1	2009-09-03

Other References: