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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 (107-301, 68 Dosin-ro,Yeongdeungpo-Gu, Seoul, 07380, KR)
KIM, Youn Jae (4621-703, 252 Beopjo-ro, Suji-gu,Yongin-Si, Gyeonggi-do, 16941, KR)
Application Number:
KR2018/008684
Publication Date:
October 24, 2019
Filing Date:
July 31, 2018
Export Citation:
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Assignee:
HP PRINTING KOREA CO., LTD. (129 Samsung-ro, Yeongtong-guSuwon-Si, Gyeonggi-do, 16677, KR)
International Classes:
B41J29/38; H04L7/027
Foreign References:
US9665059B22017-05-30
JP2013218199A2013-10-24
KR19980060407U
KR20090028497A2009-03-18
KR920000500A1992-01-29
Attorney, Agent or Firm:
KIM, Tae-hun et al. (9th Floor, Shinduk Bldg. 343, Gangnamdaero,Seocho-Gu, Seoul, 06626, KR)
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