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`US009761928B2
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`a2) United States Patent
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`US 9,761,928 B2
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`(0) Patent No.:
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`Sep. 12, 2017
`(45) Date of Patent:
`Han etal.
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`(54) MOBILE TERMINAL AND COIL ANTENNA
`MODULE
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`(58) Field of Classification Search
`None
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`See application file for complete search history.
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`(71) Applicant: LG ELECTRONICS INC., Seoul
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`(KR)
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`(56)
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`(72)
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`Inventors: Kiwon Han, Seoul (KR); Youngtae
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`Kim, Seoul (KR); Gwanghoon Lee,
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`Seoul (KR)
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`(73) Assignee: LG ELECTRONICS INC., Seoul
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`(KR)
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`(*) Notice:
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`Subject to any disclaimer, the term ofthis
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`patent is extended or adjusted under 35
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`U.S.C. 154(b) by 0 days.
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`JP
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`JP
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`References Cited
`U.S. PATENT DOCUMENTS
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`6,839,963 Bl
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`8,628,012 Bl
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`1/2005 Haghiri-Tehrani etal.
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`1/2014 Wallner
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`(Continued)
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`FOREIGN PATENT DOCUMENTS
`
`
`2011066744
`3/2011
`
`
`EP 2894757 Al *
`7/2015 we HO02J 17/00
`
`
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`
`(Continued)
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`(21) Appl. No.: 14/952,803
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`(22)
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`Filed:
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`Nov. 25, 2015
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`(65)
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`Prior Publication Data
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`US 2016/0261026 Al
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`Sep. 8, 2016
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`OTHER PUBLICATIONS
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`European Patent Office Application Serial No. 15195835.2, Search
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`Report dated Jul. 6, 2016, 8 pages.
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`(Continued)
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`Primary Examiner — Mohammed Rachedine
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`(74) Attorney, Agent, or Firm — Lee Hong Degerman
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`Kang & Waimey
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`Related U.S. Application Data
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`(57)
`ABSTRACT
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`(60) Provisional application No. 62/128,506, filed on Mar.
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`There is disclosed a mobile terminal includingafirst case
`4, 2015.
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`comprising a battery loading portion, a battery loaded in the
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`battery loading portion, a second case coupled to the first
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`case and configured to cover the battery, a coil antenna
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`module arranged between the second case and the battery,
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`and a controller electrically connected to the coil antenna
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`module and configured to transmit and receive a signal or
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`receive an electric power, wherein the coil antenna module
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`includes an insulating sheet, a first coil arranged in a surface
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`of the insulating sheet, a second coil arranged in thefirst
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`coil, a third coil arranged in the second coil, and a magnetic
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`sheet disposed on the surface of the insulating sheet, and
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`ends of the first, second and third coils are arranged in the
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`surface of the insulating sheet or dividedly arranged in both
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`surfaces of the insulating sheet. The mobile terminal may
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`realize the coil antenna module including a plurality ofcoils
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`(Continued)
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`(30)
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`Foreign Application Priority Data
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`Mar. 24, 2015
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`Apr. 7, 2015
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`(KR) wees 10-2015-0041004
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`(KR) wees 10-2015-0048991
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`(51)
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`
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`Int. Cl.
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`HO4B 5/00
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`HO1Q 1/24
`
`(2006.01)
`(2006.01)
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`(Continued)
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`(52) U.S. Cl.
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`CPC wee HO01Q 1/243 (2013.01); HOIQ 7/06
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`(2013.01); HO1Q 9/04 (2013.01); HO4B
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`1/3888 (2013.01):
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`(Continued)
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`Page | of 24
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`SAMSUNG EXHIBIT 1024
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`SAMSUNG EXHIBIT 1024
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`US 9,761,928 B2
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`configured to perform diverse manners of wireless commu-
`nication in a limited area.
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`KR
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`FOREIGN PATENT DOCUMENTS
`10-2006-0044 182
`5/2006
`
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`4/2009
`10-2009-0034749
`KR
`4/2011
`10-2011-0035196
`KR
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`9/2012
`10-2012-0100714
`KR
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`2/2013
`10-2013-0016588
`KR
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`3/2013
`10-2013-0024757
`KR
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`5/2013
`—_10-2013-0045306
`KR
`Int. Cl.
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`9/2013
`10-2013-0102218
`KR
`H0IQ 7/06
`(2006.01)
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`8/2014
`10-2014-0101665
`KR
`H0IQ 9/04
`(2006.01)
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`10/2014
`10-2014-0121200
`KR
`HO4B 13888
`(2015.01)
`
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`10/2014
`10-2014-0124851
`KR
`(52) US. Cl
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`CPC ve HOAB 5/0031 (2013.01); HO4B 5/0037, RRO ioote
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`(2013.01); HO4B 5/0081 (2013.01); HO4B
`KR
`10-2015-0051902
`5/2015
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`7/2014
`wo
`5/0087 (2013.01)
`2014/113278
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`20 Claims, 11 Drawing Sheets
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`(51)
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`(56)
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`References Cited
`U.S. PATENT DOCUMENTS
`
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`8,690,059 Bl
`4/2014 Wallner
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`8,814,046 Bl
`8/2014 Wallner
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`2006/0266435 A1* 11/2006 Yang... GOK oelos
`
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`9011/0156640 Al
`6/2011 Moshfeghi
`
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`
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`2013/0267170 Al
`10/2013 Chongetal.
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`2014/0210406 Al*
`7/2014 Na vvcscuseeeeee H02I 7/025
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`320/108
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`2014/0269946 Al
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`9/2014 Wallner
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`OTHER PUBLICATIONS
`
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`“Samsung is a partnership LoopPay Service?” http://stevejeon.
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`tumblr.com/post/105836390104/looppay, Dec. 21, 2014, 1 page.
`
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`“Samsung Pay in Action,” http:/Avwww.nfeworld.com/2015/03/02/
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`334422/video-shows-samsung-pay-in-action/, Mar. 2, 2015, | page.
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`Onin International Application No. PCT/KR2015/008510, Written
`
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`pinion of the International Searching Authority dated Dec. 3,
`2015, 10 pages.
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`* cited by examiner
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`Sheet 1 of 11
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`US 9,761,928 B2
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`| A
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`é
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`Leet
`gemOARCAST
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`“) RRCEIVINGMODULE
`
`UTO OUTPUT 12
`OD
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`Hs
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` FRORORMAY SENSOR, ;
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`acsan F4
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`IMINATIONSENSOR ||
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`Sheet 2 of 11
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`US 9,761,928 B2
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`FIG. 1b
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`100 IlaSa
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`FIG. 1c
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`US 9,761,928 B2
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`FIG. 2
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`191
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`Sheet 4 of 11
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`FIG. 3
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`FIG. 4
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`Sheet 6 of 11
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`US 9,761,928 B2
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`FIG. 5
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`FIG. 6
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`Page 8 of 24
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`13,56Mz
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`Sheet 7 of 11
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`US 9,761,928 B2
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`FIG. 7
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`FIG. 8
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`Sheet 9 of 11
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`US 9,761,928 B2
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`FIG. 9
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`= p\ f\ 4
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`FIG. 10
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`US 9,761,928 B2
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`Fig. 11
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`3. 25KH2=«(|75KHz 125KHz=175K, | 20SKHz=(75KEz«| «325K frequency
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`Mobile payment Wireless charging | Wireless charging
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`(a)
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`(b)
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`—
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`Sheet 11 of 11
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`US 9,761,928 B2
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`FIG. 12
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`FIG. 13
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`L\=>>>*SSSS
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`| Wireless Payment
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`Page 13 of 24
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`Page 13 of 24
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`US 9,761,928 B2
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`1
`MOBILE TERMINAL AND COIL ANTENNA
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`MODULE
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`CROSS-REFERENCE TO RELATED
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`APPLICATIONS
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`Pursuant to 35 U.S.C. §119, this application claims the
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`benefit of earlier filing date and right of priority to Korean
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`Application Nos. 10-2015-0041004,filed on Mar. 24, 2015,
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`and 10-2015-0048991, filed on Apr. 7, 2015, and also claims
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`the benefit of U.S. Provisional Application No. 62/128,506,
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`filed on Mar. 4, 2015, the contents of which are all incor-
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`porated by reference herein in their entirety.
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`BACKGROUND OF THE DISCLOSURE
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`Field of the Disclosure
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`Embodiments of the present disclosure relate to a mobile
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`terminal which mayfacilitate wireless communication and
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`wireless charging, and a control method thereof.
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`Backgroundof the Disclosure
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`Terminals may be generally classified as mobile/portable
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`terminals or stationary terminals according to their mobility.
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`Mobile terminals may also be classified as handheld termi-
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`nals or vehicle mounted terminals according to whether or
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`not a user can directly carry the terminal.
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`Mobile terminals have become increasingly more func-
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`tional. Examples of such functions include data and voice
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`communications, capturing images and video via a camera,
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`recording audio, playing music files via a speaker system,
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`and displaying images and video on a display. Some mobile
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`terminals include additional functionality which supports
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`gameplaying, while other terminals are configured as mul-
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`timedia players. More recently, mobile terminals have been
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`configured to receive broadcast and multicast signals which
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`permit viewing of content such as videos and television
`programs.
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`As such functions become more diversified, the mobile
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`terminal can support more complicated functions such as
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`capturing imagesor video, reproducing musicor videofiles,
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`playing games, receiving broadcast signals, and the like. By
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`comprehensively and collectively implementing such func-
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`tions, the mobile terminal may be embodied in the form of
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`a multimedia player or device.
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`Moreover, the functions can be improved as such the
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`mobile terminal transmit and receive information, using an
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`external device and wireless communication. Specific func-
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`tions of the mobile terminal may be implemented such as
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`data transmission between terminals. By extension, payment
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`settlement may be processed, using the mobile terminal.
`As use of the mobile terminal is diversified, such the
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`mobile terminal requires much battery use and there are
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`increasing needs for a wireless recharge function configured
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`to allow easy battery recharge only when the mobile termi-
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`nal is located near a recharger, without an auxiliary cable.
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`SUMMARY OF THE DISCLOSURE
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`An object of the present disclosure is to provide a a coil
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`antenna module which may facilitate various manners of
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`wireless communication and wireless recharge, and a mobile
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`terminal including the coil antenna module.
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`Embodiments of the present disclosure may provide a
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`mobile terminal including a first case comprising a battery
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`loading portion; a battery loaded in the battery loading
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`portion; a second case coupled to the first case and config-
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`ured to cover the battery; a coil antenna module arranged
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`Page 14 of 24
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`2
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`between the second case and the battery; and a controller
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`electrically connected to the coil antenna module and con-
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`figured to transmit and receive a signal or receive anelectric
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`power, wherein the coil antenna module includes an insu-
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`lating sheet; a first coil arranged in a surface of the insulating
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`sheet; a second coil arranged in the first coil; a third coil
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`arranged in the second coil; and a magnetic sheet disposed
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`on the surface of the insulating sheet, and endsof thefirst,
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`second and third coils are arranged in the surface of the
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`insulating sheet or dividedly arranged in both surfaces of the
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`insulating sheet.
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`The controller may include frequency matching circuits
`connected to the ends of the first, second and third coils,
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`respectively.
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`The frequency matching circuit may matchthefirst coil
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`with a frequency band of 13 MHzor more, the second coil
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`with a frequency band of 100 kHzorless, and the third coil
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`with a frequency band from 100 kHz to 300 kHz.
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`The frequency matching circuit may include a NFC (Near
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`Field Communication) module comprising a circuit match-
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`ing with a frequencyat a high frequency band and connected
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`to the first coil, and the frequency matching circuit may
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`perform near field communication, using the first coil.
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`The frequency matching circuit may include a wireless
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`charging module comprising a circuit matching with a
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`frequencyat a low frequency band and connectedto the third
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`coil, and the frequency matching circuit may charge the
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`battery, using the electric power received by the third coil.
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`A Q-factor of the wireless charging module and a Q-factor
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`of the third coil may be smaller than a Q-factor of the NFC
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`module and a Q-factor of the first coil.
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`Atleast oneofthefirst, second andthird coils may include
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`a predetermined portion arranged in one surface of the
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`insulating sheet and the other portion arranged in the other
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`surface of the insulating sheet, and the coils arranged in one
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`surface and the other surface of the insulating sheet may be
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`connected with each other via a via hole penetrating the
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`insulating sheet.
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`A predetermined spiral portion of the coil formed in the
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`surface and the coil formed in the other surface may be
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`symmetrically formed with respect to the insulating sheet.
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`One integrated coil is formed by connecting an internal
`end of the second coil with an external end ofthe third coil,
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`and the controller may include a wireless charging module
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`comprising a matching circuit matching a frequency at a low
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`frequency band; a mobile payment antenna module com-
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`prising a matching circuit matching a lower frequency band
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`than the wireless charging module; and a switch module
`connected to an external end of the second coil and an
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`internal end of the third coil and configured to selectively
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`connect the wireless charging module and the mobile pay-
`ment antenna module with each other.
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`The magnetic sheet may be a Ferrite sheet, and a magnetic
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`permeability (ur) of the magnetic sheet at frequencies in a
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`range from 50 kHz to 14 MHz may be 130~190.
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`The magnetic sheet may cover at least one ofthefirst,
`second and third coils, not the ends of the first, second and
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`third coils.
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`The numberofthe third coil windings maybe larger than
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`the numberofthe first coil and second coil windings.
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`to
`The controller may control
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`transmit a cancellation signal configured to cancel the signal
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`transmitted from the second coil, when the signal is trans-
`mitted from the second coil.
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`In another aspect of the present disclosure, a coil antenna
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`module includes an insulating sheet; a first coil arranged in
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`a surface of the insulating sheet; a second coil arranged in
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`Page 14 of 24
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`US 9,761,928 B2
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`3
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`the first coil; a third coil arranged in the second coil; and a
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`magnetic sheet disposed on the surface of the insulating
`sheet, and ends of the first, second and third coils are
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`arranged in the surface of the insulating sheet or dividedly
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`arranged in both surfaces of the insulating sheet.
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`The magnetic sheet may cover at least one of the first,
`second and third coils, not the ends of the first, second and
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`third coils.
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`The third coil may be thicker than the first coil and the
`second coil.
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`Atleast one ofthefirst, second and third coils may include
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`a predetermined portion arranged in one surface of the
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`insulating sheet and the other portion arranged in the other
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`surface of the insulating sheet, and the coils arranged in one
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`surface and the other surface of the insulating sheet may be
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`connected with each other via a via hole penetrating the
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`insulating sheet.
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`A predetermined spiral portion of the coil formed in the
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`surface and the coil formed in the other surface may be
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`symmetrically formed with respect to the insulating sheet.
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`The magnetic sheet may be a Ferrite sheet, and a magnetic
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`permeability (ur) of the magnetic sheet at frequencies in a
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`range from 50 kHz to 14 MHz may be 130 ~490.
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`BRIEF DESCRIPTION OF THE DRAWINGS
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`Thepresent invention will become more fully understood
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`from the detailed description given herein below and the
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`accompanying drawings, which are given by illustration
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`only, and thus are not limitative of the present invention, and
`wherein:
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`FIG. 1A is a block diagram of a mobile terminal
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`accordance with the present disclosure.
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`FIGS. 1B and 1C are conceptual views of one example of
`the mobile terminal, viewed from different directions;
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`FIG. 2 is a perspective diagram illustrating a state of a
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`back cover decoupled from the mobile terminal in accor-
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`dance with the present disclosure;
`FIG. 3 is a back view of a coil antenna module in
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`accordance with the present disclosure;
`FIG. 4 is a front view of the coil antenna module in
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`accordance with the present disclosure;
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`FIG. 5 is a diagram illustrating a method for processing
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`wireless mobile payment settlement
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`FIG.6 is a graph showing the frequency bands used in the
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`coil antenna module in accordance with the present disclo-
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`FIG.7 is a diagram illustrating a display unit configured
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`to display the functions activated in the mobile terminal in
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`accordance with the present disclosure;
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`FIG. 8 is an exploded perspective diagram illustrating a
`rea case and the coil antenna module in accordance with the
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`present disclosure;
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`FIGS. 9 and 10 are graphs showing methodsfor strength-
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`ening securing which are usedin the coil antenna module in
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`accordance with the present disclosure;
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`intensity for the
`FIG. 11 is a graph showing signal
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`frequency band of each coil provided in the coil antenna
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`module in accordance with the present disclosure; and
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`FIGS. 12 and 13 are conceptual diagramsillustrating the
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`circuits provided in a controller and the coil antenna module
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`in accordance with the present disclosure.
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`DESCRIPTION OF SPECIFIC EMBODIMENTS
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`Description will now be given in detail according to
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`exemplary embodiments disclosed herein, with reference to
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`Page 15 of 24
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`the accompanying drawings. For the sake of brief descrip-
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`tion with reference to the drawings, the same or equivalent
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`components may be provided with the same reference
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`numbers, and description thereof will not be repeated. In
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`general, a suffix such as “module” and “unit” may be used
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`to refer to elements or components. Use of such a suffix
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`herein is merely intended to facilitate description of the
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`specification, and the suffix itself is not intended to give any
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`special meaning or function. In the present disclosure, that
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`which is well-knownto oneof ordinary skill in the relevant
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`art has generally been omitted for the sake of brevity. The
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`accompanying drawings are used to help easily understand
`various technical features and it should be understood that
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`the embodiments presented herein are not limited by the
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`accompanying drawings. As such,
`the present disclosure
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`should be construed to extendto any alterations, equivalents
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`and substitutes in addition to those whichare particularly set
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`It will be understood that although the termsfirst, second,
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`etc. may be used herein to describe various elements, these
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`elements should not be limited by these terms. These terms
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`are generally only used to distinguish one element from
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`It will be understood that when an element is referred to
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`as being “connected with” another element, the element can
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`be directly connected with the other element or intervening
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`elements mayalso be present. In contrast, when an element
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`is referred to as being “directly connected with” another
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`element, there are no intervening elements present.
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`A singular representation may include a plural represen-
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`tation unless it represents a definitely different meaning from
`the context.
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`Terms such as “include” or “has” are used herein and
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`should be understood that they are intended to indicate an
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`existence of several components, functions or steps, dis-
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`closed in the specification, and it is also understood that
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`greater or fewer components, functions, or steps may like-
`wise be utilized.
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`Mobile terminals presented herein may be implemented
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`using a variety of different types of terminals. Examples of
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`such terminals include cellular phones, smart phones, user
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`equipment, laptop computers, digital broadcast terminals,
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`personal digital assistants (PDAs), portable multimedia
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`players (PMPs), navigators, portable computers (PCs), slate
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`PCs, tablet PCs, ultra books, wearable devices (for example,
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`smart watches,
`smart glasses, head mounted displays
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`(HMDs)), and thelike.
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`By way of non-limiting example only, further description
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`will be made with reference to particular types of mobile
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`terminals. However, such teachings apply equally to other
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`types of terminals, such as those types noted above. In
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`addition, these teachings may also be applied to stationary
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`terminals such as digital TV, desktop computers, and the
`like.
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`Reference is now made to FIGS. 1A-1C, where FIG. 1A
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`is a block diagram of a mobile terminal in accordance with
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`the present disclosure, and FIGS. 1B and 1C are conceptual
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`views of one example of the mobile terminal, viewed from
`different directions.
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`The mobile terminal 100 is shown having components
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`such as a wireless communication unit 110, an input unit
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`120, a sensing unit 140, an output unit 150, an interface unit
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`160, a memory 170, a controller 180, and a power supply
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`unit 190. It
`is understood that
`implementing all of the
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`illustrated components is not a requirement, and that greater
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`or fewer components may alternatively be implemented.
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`65
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`Page 15 of 24
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`US 9,761,928 B2
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`5
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`The wireless communication unit 110 typically includes
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`one or more modules which permit communications such as
`wireless communications between the mobile terminal 100
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`and a wireless communication system, communications
`between the mobile terminal 100 and another mobile termi-
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`nal, communications between the mobile terminal 100 and
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`an external server. Further, the wireless communication unit
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`110 typically includes one or more modules which connect
`the mobile terminal 100 to one or more networks.
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`To facilitate such communications, the wireless commu-
`nication unit 110 includes one or more of a broadcast
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`receiving module 111, a mobile communication module 112,
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`a wireless Internet module 113, a short-range communica-
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`tion module 114, and a location information module 115.
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`The input unit 120 includes a camera 121 for obtaining
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`images or video, a microphone 122, which is one type of
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`audio input device for inputting an audio signal, and a user
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`input unit 123 (for example, a touch key, a push key, a
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`mechanicalkey, a soft key, and the like) for allowing a user
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`information. Data (for example, audio, video,
`to input
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`image, andthe like) is obtained by the input unit 120 and
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`maybe analyzed and processed by controller 180 according
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`to device parameters, user commands, and combinations
`thereof.
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`The sensing unit 140 is typically implemented using one
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`or more sensors configured to sense internal information of
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`the mobile terminal, the surrounding environment of the
`mobile terminal, user
`information, and the like. For
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`example, a sensing unit 140 may include one or more of a
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`proximity sensor 141, an illumination sensor 142, a touch
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`sensor, an acceleration sensor, a magnetic sensor, a G-sen-
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`sor, a gyroscope sensor, a motion sensor, a RGB sensor, an
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`IR sensor(Infrared sensor), a finger scan sensor, a ultrasonic
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`sensor, an optical sensor (e.g., a camera 121), a microphone
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`122, a battery gauge, an environmental sensor (e.g., a
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`barometer, a hygrometer, a thermometer, a radioactivity
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`detecting sensor, a thermal sensor, a gas sensor andthelike)
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`and a chemical sensor(e.g., an electronic nose, a healthcare
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`sensor, a biometric sensor and the like). Meanwhile, the
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`mobile terminal disclosed in the specification may collate
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`and use the information sensed byat least two or more ofthe
`sensors.
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`The output unit 150 is typically configured to output
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`various types of information, such as audio, video, tactile
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`output, and the like. The output unit 150 is shown having a
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`display unit 151, an audio output module 152, a haptic
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`module 153, and an optical output module 154. The display
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`unit 151 may have an inter-layered structure or an integrated
`structure with a touch sensor in order to facilitate a touch
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`screen. The touch screen may provide an output interface
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`between the mobile terminal 100 and a user, as well as
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`function as the user input unit 123 which provides an input
`interface between the mobile terminal 100 and the user.
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`The interface unit 160 serves as an interface with various
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`types of external devices that can be coupled to the mobile
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`terminal 100. The interface unit 160, for example, may
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`include any of wired or wireless ports, external power
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`supply ports, wired or wireless data ports, memory card
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`ports, ports for connecting a device having an identification
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`module, audio input/output (I/O) ports, video I/O ports,
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`earphone ports, and the like. In some cases, the mobile
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`terminal 100 may perform assorted control functions asso-
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`ciated with a connected external device, in response to the
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`external device being connected to the interface unit 160.
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`The memory 170is typically implementedto store data to
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`support various functions or features of the mobile terminal
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`100. For instance, the memory 170 may be configured to
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`65
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`Page 16 of 24
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`6
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`store application programs executed in the mobile terminal
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`100, data or instructions for operations of the mobile termi-
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`nal 100, and the like. Some of these application programs
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`may be downloaded from an external server via wireless
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`communication. Other
`application programs may be
`installed within the mobile terminal 100 at time of manu-
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`facturing or shipping, which is typically the case for basic
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`functions of