Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 1 of 19 PageID #: 24399
`Case 5:19-cv-00036—RWS Document 442-2 Filed 07/24/20 Page 1 of 19 PageID #: 24399
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`EXHIBIT 1
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`EXHIBIT 1
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`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 2 of 19 PageID #: 24400
`I 1111111111111111 1111111111 1111111111 1111111111 1111111111 lll111111111111111
`USO 102125 86B2
`
`c12) United States Patent
`Hira bayashi et al.
`
`US 10,212,586 B2
`(10) Patent No.:
`Feb.19,2019
`(45) Date of Patent:
`
`(54) MOBILE TERMINAL AND CONTROL
`METHOD THEREOF
`
`(71) Applicant: Maxell, Ltd., Kyoto (JP)
`
`(72)
`
`Inventors: Masayuki Hirabayashi, Yokohama
`(JP); Hideo Nishijima, Hitachinaka (.IP)
`
`(73) Assignee: MAXELL, LTD., Kyoto (JP)
`
`( *) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 54 days.
`
`(21) Appl. No.: 13/874,535
`
`(22) Filed:
`
`May 1, 2013
`
`(65)
`
`Prior Publication Data
`US 2013/0316644 Al
`Nov. 28, 2013
`
`(30)
`
`Foreign Application Priority Data
`
`May 23, 2012
`
`(JP) ................................. 2012-117105
`
`(51)
`
`Int. Cl.
`H04W 12106
`/JfJ4L 29/()6
`(52) U.S. Cl.
`CPC ......... H04W 12106 (2013.01); H04L 63/0492
`(2013.01)
`
`(2009.01)
`(2006.01)
`
`( 58) Field of Classification Search
`CPC .. H04W 12/06; H04W 12/00; H04L 63/0492;
`H04L 9/32; H04M 1/66; H04B 7/00
`USPC ................................................ 455/26.1, 41.2
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`2004/0046638 Al*
`2006/0123242 Al*
`
`3/2004 Kawasaki .................... 340/5.61
`6/2006 Merrern .............. E05B 73/0082
`713/186
`
`2007/0287423 Al* 12/2007 Kakiuchi
`
`......... 455/41.2
`2006/0128305 Al*
`6/2006 Delalat
`2006/0224882 Al* 10/2006 Chin ....................... G06F 21/34
`713/150
`G06Q 20/32
`455/411
`6/2010 Satou ........................... 455/41.2
`412011 Golder .......................... 455/411
`8/2011 Friedlaender .
`G08C 17/02
`455/41.2
`
`2010/0144275 Al*
`2011/0086615 Al*
`2011/0195665 Al*
`
`(Continued)
`
`FOREIGN PATENT DOCUMENTS
`
`JP
`JP
`
`6/2002
`2002-183866 A
`4/2004
`2004-102682
`(Continued)
`
`OTHER PUBLICATIONS
`
`Office Action dated Mar. 3, 2015, which issued during the prosecu(cid:173)
`tion of Japanese Patent Application No. 2012-117105, which cor(cid:173)
`responds to the present application (partial English translation
`attached).
`
`(Continued)
`
`Primary Examiner - Dong-Chang Shiue
`(74) Attorney, Agent, or Firm - Baker Botts L.L.P.
`
`(57)
`
`ABSTRACT
`
`There is provided a mobile terminal capable of being
`protected against unauthorized use by a third party without
`using a dedicated key device. A plurality of mobile terminals
`are previously registered mutually. When unlocked among
`them, one mobile terminal communicates with another
`mobile terminal in a commtmication range of short-range
`wireless commtmications, unlocks the above another mobile
`tem1inal, and when out of the communication range, locks it
`again.
`
`20 Claims, 10 Drawing Sheets
`
`<;~~!t~~
`
`N
`
`S206
`N ~~1~Ji~~>
`
`~RAllVENLENGTH....---(cid:173)
`CfTI~
`y
`
`LOCKSMOBLETERMINAl.2
`THROJGHSHORr.RANGE
`WFa.ESSCOMMUNiCATOi'•S
`
`-...S207
`
`I LOCKMOOLETF.FIMINAL 1 t'- S208
`
`(
`
`E~D
`
`)
`
`MAXELL_APPLE0000 168
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 3 of 19 PageID #: 24401
`
`US 10,212,586 B2
`Page 2
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`2012/0040611 Al*
`
`2/2012 Griffin
`
`2012/0280790 Al* 11/2012 Gerhardt .
`
`2013/0183936 Al*
`
`7/2013 Smtih
`
`H04W 52/0254
`455/41.1
`G07C 9/00309
`340/5.61
`H04W 12/06
`455/411
`
`FOREIGN PATENT DOCUMENTS
`
`JP
`JP
`JP
`JP
`
`2006-285965 A
`2006285965 A
`2008-227758 A
`2010-086281 A
`
`10/2006
`* 10/2006
`9/2008
`4/2010
`
`G06F 21/34
`
`OTHER PUBLICArIONS
`
`Office Action dated Jun. 30, 2015, which issued during the pros(cid:173)
`ecution of Japanese Patent Application No. 2012-117105, which
`corresponds to the present application (partial English translation
`attached).
`Office Action dated Feb. 28. 2017, which issued during the pros(cid:173)
`ecution of Japanese Patent Application No. 2015-241178, which
`corresponds to the present application (English translation attached).
`
`* cited by examiner
`
`MAXELL_APPLE0000 169
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 4 of 19 PageID #: 24402
`
`N
`cc
`'""" N u. QC)
`'N
`'""" =
`
`O's
`
`r:,J
`~
`
`0
`~ .....
`0
`.....
`('!) a
`rJl =(cid:173)
`
`\0
`0 .....
`N
`\0
`.....
`O"'
`('!)
`"1'j
`
`~
`
`~ = ~
`
`~
`~
`~
`•
`00
`
`e •
`
`MOBILE TERMINAL
`
`MOBILE TERMINAL
`
`STORAGE
`
`UNIT
`
`OPERATING
`
`UNIT
`
`DISPLAY UNIT
`
`24
`
`23
`
`22
`
`STORAGE
`
`UNIT
`
`OPERATING
`
`UNIT
`
`DISPLAY UNIT
`
`14
`
`13
`
`12
`
`CONTROLLER
`
`21
`
`CONTROLLER
`
`1 1
`
`~ m
`:s:
`
`r
`r
`
`WIRELESS COMMUN~ COMMUNICATIONS
`
`WIRELESS
`25
`
`SHORT-RANGE
`
`26
`
`UNIT
`
`CATION UNIT
`
`COMMUNICATIONS WIRELESSCOMMUNI(cid:173)
`
`SHORT-RANGE
`16
`
`11
`
`WIRELESS
`15
`
`CATION UNIT
`
`MOBILE BASE STATION .-----+-------'-------------.
`
`FIG. 1
`
`I(cid:141) "
`
`""O r m
`
`"O
`
`0
`-..,J
`0 ......
`0
`0
`0
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 5 of 19 PageID #: 24403
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 2 of 10
`
`US 10,212,586 B2
`
`FIG. 2
`START
`
`N
`
`S202
`SEARCH MOBILE TERMINALS IN THE
`NEIGHBORHOOD THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S204
`UNLOCK MOBILE TERMINAL 2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`N
`
`y
`
`N
`
`LOCKS MOBILE TERMINAL 2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S207
`
`LOCKMOBILETERMINAL 1
`
`S208
`
`END
`
`MAXELL_APPLE0000 171
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 6 of 19 PageID #: 24404
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 3 of 10
`
`US 10,212,586 B2
`
`FIG. 3
`
`START
`
`N
`
`y
`
`y
`
`y
`
`ISMOBILE
`TERMINAL2
`INSTRUCTED TO BE LOCKED
`BY MOBILE TERMINAL 1 THROUGH
`SHORT-RANGE WIRELESS
`COMMUNICA-
`TIONS?
`y
`
`N
`
`y
`
`LOCK MOBILE TERMINAL2
`
`S307
`
`END
`
`y
`
`MAXELL_APPLE0000 172
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 7 of 19 PageID #: 24405
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 4 of 10
`
`US 10,212,586 B2
`
`FIG. 4
`
`START
`
`N
`
`y
`
`y
`
`y
`
`S403
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S405
`UNLOCK MOBILE TERMINAL 2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`N
`
`y
`
`N
`
`ISMOBILE
`TERMINAL 1 INSTRUCTED
`TOBE LOCKED THROUGH
`SHORT-RANGE WIRELESS
`COMMUNICATIONS?
`
`y
`
`LOCK MOBILE TERMINAL 1
`
`S411
`
`END
`
`LOCK MOBILE TERMINAL2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`S408
`
`MAXELL_APPLE0000 173
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 8 of 19 PageID #: 24406
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 5 of 10
`
`US 10,212,586 B2
`
`FIG. 5
`
`START
`
`N
`
`y
`
`y
`
`y
`
`S503
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S505
`UNLOCK MOBILE TERMINAL 1
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`N
`
`y
`
`N
`
`ISMOBILE
`TERMINAL 2 INSTRUCTED
`TO BE LOCKED THROUGH
`SHORT-RANGE WIRELESS
`COMMUNICATIONS?
`
`y
`
`LOCKMOBILETERMINAL2
`
`S511
`
`END
`
`LOCK MOBILE TERMINAL 1
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`S508
`
`MAXELL_APPLE0000 17 4
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 9 of 19 PageID #: 24407
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 6 of 10
`
`US 10,212,586 B2
`
`START
`
`FIG. 6
`
`y
`
`S602
`
`N
`
`y
`
`y
`
`N
`
`ISMOBILE
`TERMINAL 1 INSTRUCTED
`TO BE LOCKED THROUGH
`SHORT-RANGE WIRELESS
`COMMUNICATIONS?
`
`y
`
`LOCKMOBILETERMINAL 1
`
`S613
`
`END
`
`S603
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`S604
`
`DISPLAY CONFIRMATION
`SCREEN IN WHICH MOBILE
`TERMINAL 2 IS UNLOCKED
`S606
`
`UNLOCK MOBILE TERMINAL 2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`N
`
`N
`
`y
`
`LOCK MOBILE TERMINAL 2
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`S610
`
`MAXELL_APPLE0000 175
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 10 of 19 PageID #: 24408
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 7 of 10
`
`US 10,212,586 B2
`
`FIG. 7
`
`1
`
`MOBILE TERMINAL 2 IS DETECTED.
`
`73
`
`IS MOBILE TERMINAL 2 UNLOCKED?
`
`NOT
`UNLOCK
`
`~-~
`L_)(~_)L_)
`
`DD (cid:143)
`DD (cid:143)
`(cid:143) DD
`DD (cid:143)
`DD (cid:143)
`
`MAXELL_APPLE0000 176
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 11 of 19 PageID #: 24409
`
`U.S. Patent
`
`Feb. 19,2019
`
`Sheet 8 of 10
`
`US 10,212,586 B2
`
`START
`
`FIG. 8
`
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S801
`
`N
`
`S803
`
`S805
`
`REQUEST USER TO ENTER
`SIMPLE PASSWORD
`
`REQUEST USER TO ENTER
`COMPLICATED PASSWORD
`
`N
`
`N
`
`y
`
`UNLOCKMOBILETERMINAL 1 S807
`
`y
`
`N
`
`y
`
`LOCK MOBILE TERMINAL 1
`
`S810
`
`END
`
`MAXELL_APPLE0000 177
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 12 of 19 PageID #: 24410
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 9 of 10
`
`US 10,212,586 B2
`
`FIG. 9
`
`START
`
`N
`
`N
`
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S901
`
`S902
`
`y
`
`UNLOCK MOBILE TERMINAL 1
`
`S903
`
`S904
`
`y
`
`LOCK MOBILE TERMINAL 1
`
`S905
`
`END
`
`MAXELL_APPLE0000 178
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 13 of 19 PageID #: 24411
`
`U.S. Patent
`
`Feb.19,2019
`
`Sheet 10 of 10
`
`US 10,212,586 B2
`
`FIG. 10
`
`START
`
`SEARCH MOBILE TERMINALS
`IN THE NEIGHBORHOOD
`THROUGH SHORT-RANGE
`WIRELESS COMMUNICATIONS
`
`S1001
`
`N
`
`N
`
`S1002
`
`S1003
`
`y
`
`y
`
`GIVE WARNING TO USER
`
`S1004
`
`END
`
`MAXELL_APPLE0000 179
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 14 of 19 PageID #: 24412
`
`US 10,212,586 B2
`
`1
`MOBILE TERMINAL AND CONTROL
`METHOD THEREOF
`
`INCORPORATION BY REFERENCE
`
`The present application claims priority from Japanese
`application JP2012-117105 filed on May 23, 2012, the
`content of which is hereby incorporated by reference into
`this application.
`
`BACKGROUND OF THE INVENTION
`
`2
`mobile terminals are previously registered mutually. When
`unlocked among them, one mobile tenninal connnunicates
`with another mobile terminal in a communication range of
`the short-range wireless communications, unlocks the above
`5 another mobile terminal, and when out of the communica(cid:173)
`tion range, locks it again.
`According to the present invention, for example, when
`one mobile terminal is unlocked among a plurality of mobile
`tem1inals, another mobile terminal can be unlocked.
`Other objects, features and advantages of the invention
`will become apparent from the ti.Jllowing description of the
`embodiments of the invention taken in conjunction with the
`accompanying drawings.
`
`10
`
`]be present invention relates to a mobile terminal and a
`control method thereof.
`As a background art of this technical field, JP-A-2004- 15
`102682 is disclosed. In its publication, a problem will be
`described as below. "According lo the conventional schemes
`described above, therefore, the user of the terminal device
`needs to make a complex action in order to prevent a third
`party from making unauthorized use of the terminal device. 20
`If the user has inadvertently made the password known or
`lost the terminal device together with the ID card, then it is
`impossible to reliably prevent unauthorized use of the ter(cid:173)
`minal device by a third party."
`A method for solving this problem will be described as 25
`below. "There is provided a terminal lock system for veri(cid:173)
`fying that the user of a terminal device is a person with the
`legitimate right to use the tenninal device for thereby
`protecting the terminal device against unauthorized use by a
`third party, the terminal lock system comprising a key device 30
`and a terminal-associated device. The key device is portable
`and has a radio communication means for performing short(cid:173)
`range wireless communications. The terminal-associated
`device requests a connection to the key device through the
`short-range wireless communications, and inhibits the ter- 35
`minal device which is combined with the terminal-associ(cid:173)
`ated device from being used if information of the key device
`which is confirmed as being connected to the terminal(cid:173)
`associated device does not agree with infomrntion registered
`in the terminal-associated device, or if the terminal-associ- 40
`ated device is not confirmed as being connected to the key
`device through the short-range wireless communications."
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`FIG. 1 is a block diagram illustrating a configuration of a
`mobile terminal according to a first embodiment;
`FIG. 2 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 1 according lo a first
`embodiment;
`FIG. 3 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 2 according to a first
`embodiment;
`FIG. 4 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 1 according to a second
`embodiment;
`FIG. 5 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 2 according to a second
`embodiment;
`FIG. 6 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 1 according to a third
`embodiment;
`FIG. 7 is a display example illustrating a liquid crystal
`panel of a mobile tem1inal according to a third embodiment;
`FIG. 8 is a flowchart illustrating operations for locking
`and releasing a mobile terminal 1 according to a ti.Jurth
`embodiment;
`FIG. 9 is a flowchart illustrating operations for locking
`and releasing a mobile tenninal 1 according to a fifth
`embodiment; and
`FIG. 10 is a flowchart illustrating a warning operation of
`a mobile terminal 1 according to a sixth embodiment.
`
`SUMMARY OF THE INVENTION
`
`DESCRIPTION OF THE EMBODIMENTS
`
`45
`
`In JP-A-2004-102682, the following advantage will be
`described. "With the above arrangement, when the user who
`is carrying the key device moves away from the terminal
`device combined with the terminal-associated device until
`the tem1inal-associated device and the key device are no 50
`longer capable of connecting lo each other based on a
`short-range wireless communication technique. the tem1i(cid:173)
`nal-associated device locks the terminal device against use.
`The terminal lock system thus authenticates the user without
`the need for asking the user to make any action, and reliably 55
`protects the tem1inal device against unauthorized use by a
`third party."
`However, the user needs to always carry the dedicated key
`device having a communication function when using the
`terminal device.
`In view of the foregoing, it is an object of the present
`invention to provide a convenient mobile terminal and
`control method thereof capable of being protected against
`unauthorized use by a third party without using the dedi(cid:173)
`cated key device.
`The object of the present invention can be attained by the
`following technical proposal: For example, a plurality of
`
`Hereinafter, preferred embodiments of the present inven(cid:173)
`tion will be described with reference to the accompanying
`drawings of the embodiments.
`
`First Embodiment
`
`FIG. 1 is a block diagram illustrating a configuration of a
`mobile terminal according to a first embodiment of the
`present invention. The mobile terminals 1 and 2 each have
`a radio communication function, and transmit and receive a
`variety of information to and from a mobile base station 3.
`Further, the mobile terminals 1 and 2 each have a function
`of performing short-range wireless conmumication between
`mobile terminals, and can transmit and receive a variety of
`60 information between the mobile terminals 1 and 2 by using
`the fi.mction. Examples of the short-range wireless commu(cid:173)
`nication include Bluetooth (trademark), infrared rays, and
`Wi-Fi Direct.
`A controller 11 controls each unit of the mobile terminal
`65 1. The controller 11 is configured by a CPU (Central
`Processing Unit). an arbitrary control circuit, or a dedicated
`circuit such as an ASIC.
`
`MAXELL_APPLE0000 180
`
`

`

`Case 5:19-cv-00036-RWS Document 442-2 Filed 07/24/20 Page 15 of 19 PageID #: 24413
`
`US 10,212,586 B2
`
`3
`A display unit 12 of the mobile tern1inal 1 is configured,
`for example, by a liquid crystal panel, and displays a variety
`of information. An operating unit 13 is configured. for
`example, by a push-button switch or a touch panel, and an
`instruction of a user is transferred to the controller 11. A 5
`wireless communications unit 15 and a short-range wireless
`communication unit 16 are each configured by a communi(cid:173)
`cation circuit including an encoding circuit and a decoding
`circuit in addition to an antenna. The wireless communica-
`tions unit 15 communicates with the mobile base station 3. 10
`The short-range wireless communication unit 16 controls
`short-range wireless conmmnications and communicates,
`for example, with the mobile terminal 2.
`A storage unit 14 stores a program or various kinds of
`setting information for controlling a mobile terminal, and a
`password fix unlocking a mobile terminal.
`A controller 21, a display unit 22, an operating unit 23, a
`storage unit 24, and a wireless conmmnications unit 25 of
`the mobile terminal 2 are the same as the controller 11. the
`display unit 12, the operating unit 13, the storage unit 14, 20
`and the wireless communications unit 15 of the mobile
`terminal 1, and therefore, descriptions will not be repeated
`here. A short-range wireless communication unit 26 controls
`short-range wireless communications, and communicates,
`for example, with the mobile terminal 1.
`Next, descriptions will be made about operations which
`are set until the mobile terminal 2 is unlocked after the
`mobile lenninal 1 is unlocked.
`In addition, the locked state of the present embodiment is
`a state in which functions or operations of part or the whole
`of a mobile terminal are limited.
`When the user refers to the display unit 12 of the mobile
`terminal 1 and operates the operating tmit 13 so as to release
`a locked state. the mobile terminal 1 searches whether
`another mobile tern1inal is in a short-distance communica- 35
`tion range capable of performing short-range wireless com(cid:173)
`tenninal 1 further confirms
`munications. The mobile
`whether it is the mobile tern1inal 2 being a previously
`registered mobile terminal. When the mobile terminal 1
`confirms that information stored in the storage unit 14 is 40
`matched with that of the storage unit 24 and it is the
`previously registered mobile terminal, the mobile terminal 2
`is unlocked.
`The mobile terminals 1 and 2 are supposed to transit lo a
`locked state when not operated for a given length of time
`and, for example, a password is supposed to need to be
`entered in order to release the locked state. The given length
`of time is, for example, thirty seconds. Further, the mobile
`terminals 1 and 2 are previously registered so as lo be
`mutually locked and unlocked through short-range wireless
`communications.
`An example where the mobile terminals 1 and 2 each have
`a radio conmmnication function with the mobile base station
`3 is illustrated. Further, the mobile terminal 1 and/or mobile
`terminal 2 may each have a wireless LAN (Local Area
`Network) function, and transmit and receive a variety of
`information to and from a wireless LAN router.
`FIG. 2 is a flowchart illustrating operations oflocking and
`unlocking the mobile terminal 1 according to the first
`embodiment.
`First, at step S201, the mobile terminal 1 confirms
`whether to be unlocked when the user enters a password.
`The mobile terminal 1 continues to wait for unlocking until
`the locked slate is released, and when it is unlocked, the
`process proceeds lo step S202. An example where the user
`enters a password is described here, and biometrics authen(cid:173)
`tication may be further used.
`
`4
`At step S202, the mobile terminal 1 searches mobile
`terminals in the neighborhood through short-range wireless
`conmmnications. For example, the mobile terminal 1 trans(cid:173)
`mits radio waves used for the short-range wireless commu(cid:173)
`nications and searches for a mobile terminal in which the
`short-range wireless conmmnications are established by
`receiving the radio waves.
`At step S203, the mobile terminal 1 determines whether
`there is a mobile terminal in the neighborhood and it is the
`previously registered mobile terminal, and switches the
`process. If so, the process advances to step S204. If not, the
`process proceeds to step S205.
`At step S204, the mobile terminal 1 unlocks the previ-
`15 ously registered mobile tenninal 2 through the short-range
`wireless communications. For example, the mobile terminal
`1 transmits a signal for instructing the mobile terminal 2 to
`be unlocked thereto. Here, the mobile terminals 1 and 2 are
`supposed to be previously registered mutually by the same
`user.
`At step S205, the mobile terminal 1 confirms whether to
`be instructed lo be locked by the user. If so, the process
`proceeds to step S207. At step S206, the mobile terminal 1
`further confirms whether not to be operated for a given
`25 length of time. If not, the process proceeds to step S207. If
`so, the process returns to step S205.
`At step S207, the mobile terminal 1 locks the previously
`registered mobile tenninal 2 through the short-range wire(cid:173)
`less communications. For example, the mobile tenninal 1
`30 transmits a signal for instructing the mobile terminal 2 to be
`locked thereto.
`At step S208, the mobile terminal 1 is locked.
`FIG. 3 is a flowchart illustrating operations for locking
`and unlocking the mobile terminal 2 according to the first
`embodiment.
`First, at step S301, the mobile terminal 2 confinns
`whether to be unlocked when the user enters a password. If
`so, the process proceeds to step S303. At step S302. the
`mobile tern1inal 2 further confirms whether to be unlocked
`through the short-range wireless communications. If so, the
`process proceeds to step S305. If not, the process returns to
`step S301.
`At step S303, the mobile terminal 2 confirms whether to
`be instructed to be locked by the user. If so, the process
`45 proceeds to step S307. At step S304, the mobile terminal 2
`further confirms whether not to be operated for a given
`length of time. If not, the process proceeds to step S307. If
`so, the process returns to step S303.
`Al step S305, the mobile terminal 2 confirms whether to
`50 be out of the communication range of the short-range
`wireless communications with the mobile terminal 1. If so,
`the process proceeds to step S307. At step S306. the mobile
`terminal 2 further confirms whether to be instructed to be
`locked by the mobile tenninal 1 through the short-range
`55 wireless connnunications. If so, the process proceeds to step
`S307. If not, the process returns lo step S305.
`At step S307, the mobile terminal 2 is locked.
`In addition, the mobile terminal 1 may detect that the
`short-range wireless communications established with the
`60 mobile tern1inal 2 is broken, and transmit a signal fix
`instructing the mobile terminal 2 to be locked thereto
`inm1ediately before the communication is broken.
`In the first embodiment of the present invention, a plu(cid:173)
`rality of mobile terminals are previously registered mutually
`65 through the above configuration. When one mobile terminal
`is unlocked among them, another mobile terminal is
`unlocked in the conmmnication range of the short-range
`
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`US 10,212,586 B2
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`5
`wireless communications. When out of the communication
`range, the another mobile terminal can be locked again.
`In the present embodiment, an example where two mobile
`terminals are locked and unlocked is described; similarly,
`three or more mobile terminals can be further locked and
`unlocked.
`
`Second Embodiment
`
`FIG. 4 is a flowchart illustrating operations for locking
`and unlocking the mobile terminal 1 according to a second
`embodiment of the present invention. The mobile terminal
`has the same configuration as that of the first embodiment,
`and therefore descriptions will not be repeated here.
`First, at step S401, the mobile terminal 1 confirms 15
`whether to be unlocked when the user enters a password. If
`so. the process proceeds to step S403. At step S402, the
`mobile terminal 1 further confirms whether to be unlocked
`through the short-range wireless connnunications. If so, the
`process proceeds to step S409.
`Steps S403 to S408 are the same as steps S202 lo S207 of
`FIG. 2, and therefore descriptions will not be repeated here.
`At step S409, the mobile terminal 1 confirms whether to
`be out of the communication range of the short-range
`wireless communications with the mobile terminal 2. If so,
`the process proceeds to step S411. At step S410, the mobile
`terminal 1 further confirms whether to be instructed to be
`locked through the short-range wireless communications. If
`so, the process proceeds to step S411. If not, the process
`returns to step S409.
`At step S411, the mobile terminal 1 is locked.
`FIG. 5 is a flowchart illustrating operations for locking
`and unlocking the mobile terminal 2 according to the second
`embodiment.
`First, al step S501, the mobile tem1inal 2 confirms
`whether lo be unlocked when the user enters a password. If
`so, the process proceeds to step S503. Al step S502. the
`mobile terminal 2 further confirms whether to be unlocked
`through the short-range wireless communications. If so, the
`process proceeds to step S509.
`Steps S503 and S504 are the same as steps S403 and S404
`of FIG. 4, and therefore descriptions will not be repeated
`here.
`At step SS0S. the mobile terminal 2 unlocks the previ(cid:173)
`ously registered mobile terminal 1 through the short-range
`wireless communications.
`At step S506, the mobile terminal 2 confim1s whether to
`be instrncted to be locked by the user. If so, the process
`proceeds to step S508. At step S507, the mobile terminal 2
`further confinns whether not to be operated for a given
`length of time. If not. the process proceeds to step S508.
`At step S508, the mobile terminal 2 locks the previously
`registered mobile terminal 1 through the short-range wire(cid:173)
`less conmmnications.
`At step S509, the mobile terminal 2 confirms whether to
`be out of the connnunicalion range of the short-range
`wireless connnunications with the mobile terminal 1. If so,
`the process proceeds to step S511. At step S510, the mobile
`terminal 2 further confirms whether to be instructed to be
`locked through the short-range wireless communications. If 60
`so, the process proceeds to step S511. If not, the process
`returns to step S509.
`Al step S511, the mobile terminal 2 is locked.
`In the second embodiment of the present invention, a
`plurality of mobile terminals are previously registered mulu- 65
`ally through the above configuration. When one mobile
`terminal is unlocked among them, another mobile terminal
`
`6
`is unlocked in the communication range of the short-range
`wireless communications. When out of the connnunication
`range, the another mobile terminal can be locked again.
`First, any mobile terminal may be unlocked. Even if any
`5 mobile terminal is unlocked, another mobile terminal can be
`unlocked. and therefore the mobile terminal of the second
`embodiment is more convenient than that of the first
`embodiment.
`In the present embodiment, an example where two mobile
`10 terminals are locked and unlocked is described; similarly,
`three or more mobile terminals can be further locked and
`unlocked.
`
`Third Embodiment
`
`35
`
`FIG. 6 is a flowchart illustrating operations for locking
`and unlocking the mobile terminal 1 according to a third
`embodiment of the present invention. The mobile terminal
`20 has the same configuration as that of the first embodiment,
`and therefore descriptions will not be repeated here.
`Steps S601 to S604 are the same as steps S401 to S404 of
`FIG. 4, and therefore descriptions will not be repeated here.
`At step S605, the mobile terminal 1 displays a confirma-
`25 tion screen in which the mobile terminal 2 is unlocked. A
`display example will be described later.
`At step S606, the mobile terminal 1 confirms whether the
`user instrncts the mobile terminal 2 to be unlocked. If so, the
`process advances to step S607. If not, the process proceeds
`30 to step S608.
`Steps S608 to S613 are the same as steps S406 lo S411 of
`FIG. 4, and therefore descriptions will not be repeated here.
`FIG. 7 is a display example illustrating a liquid crystal
`panel of the mobile terminal 1 at the time of detecting the
`mobile terminal 2 through the short-range wireless commu-
`nications at step S605 of FIG. 6. A detection report of the
`mobile terminal 2, a selection button, and non-selection
`button of the unlocking are displayed on the liquid crystal
`40 panel. When detecting the mobile terminal 2 through the
`short-range wireless communications, the mobile tem1inal 1
`transits to an unlocking selection mode. On the liquid crystal
`panel 73. an unlocking selection button 74 and an unlocking
`non-selection button 76 are displayed. When the user pushes
`45 a push-button switch 75 corresponding to the unlocking
`selection button 74, the mobile terminal 2 is unlocked. When
`the user pushes a push-button switch 77 corresponding to the
`unlocking non-selection button 76, the mobile terminal 1
`releases the unlocking selection mode and returns to a
`50 normal mode.
`In the third embodiment of the present invention, a
`plurality of mobile terminals are previously registered mutu(cid:173)
`ally through the above configuration. When one mobile
`terminal is unlocked among them. another mobile terminal
`55 is unlocked in the conmmnication range of the short-range
`wireless communications. When out of the communication
`range, the another mobile terminal can be locked again.
`Further, upon detection of another mobile terminal, the
`user can select whether lo unlock it.
`
`Fourth Embodiment
`
`FIG. 8 is a flowchart illustrating operations for locking
`and unlocking the mobile terminal 1 according to a fourth
`embodiment of the present invention. The mobile terminal
`has the same configuration as that of the first embodiment,
`and therefore descriptions will not be repeated here.
`
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`US 10,212,586 B2
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`8
`previously registered mobile terminal, and switches the
`process. If so, the process proceeds to step S903. If not, the
`process returns to step S901.
`Al step S903, the mobile terminal 1 is unlocked. Here, the
`5 mobile terminals 1 and 2 are supposed to be previously
`registered mutually by the same user.
`At step S904, the mobile terminal 1 confirms whether to
`be out of the communication range of the short-range
`wireless communications with the mobile terminal 2. The
`mobile terminal 1 continues to wait until out of the com(cid:173)
`munication range. When the mobile terminal 1 is out of the
`communication range, the process proceeds to step S905.
`At step S905, the mobile terminal 1 is locked.
`Operations for locking and unlocking the mobile terminal
`2 are the same as those of the mobile terminal 1.
`In the fifth embodiment of the present invention, a plu(cid:173)
`rality of mobile terminals are previously registered mutually
`through the above configuration. When in the communica(cid:173)
`tion range of the short-range wireless communications. they
`20 are mutually unlocked. When out of the communication
`range, they are locked again. Therefore, the mobile terminal
`of the present embodiment is more convenient than those of
`the first and second embodiments.
`In the present embodiment, an example where two mobile
`terminals are locked and unlocked is described; similarly.
`three or more mobile terminals can be further locked and
`unlocked.
`
`Sixth Embodiment
`
`7
`First, at step S801, the mobile terminal 1 searches mobile
`terminals in the neighborhood through the short-range wire(cid:173)
`less communications.
`Al step S802, the mobile terminal 1 determines whether
`there is a mobile terminal in the neighborhood and it is the
`previously registered mobile terminal, and switches the
`process. If so, the process advances to step S803. If not, the
`process proceeds to step S805.
`At step S803, the mobile terminal 1 requests the user to
`enter a simple password, and continues to wail until it is 10
`correctly entered al step S804. When the simple password is
`entered, the process proceeds to step S807.
`At step S805. the mobile terminal 1 requests the user to
`enter a