(12) United States Patent
`Larsen
`
`(10) Patent N0.:
`(45) Date of Patent:
`
`US 6,363,259 B1
`*Mar. 26, 2002
`
`US006363259B1
`
`(54) USER INTERFACE FORARADIO
`TELEPHONE
`
`(75) Inventor: Flemming Klovborg Larsen,
`Copenhagen (DK)
`
`5,422,656 A * 6/1995 Allard et a1. ............. .. 345/173
`5,479,476 A 12/1995 Finke-Anlauff ......... .. 379/58
`
`5,542,103 A * 7/1996 Mottier et a1. . . . . . .
`
`. . . . . .. 455/89
`
`;YII11eSkietJa1-t~-l~-~ c aupp, r. e a. ....... ..
`,
`,
`
`2 Z:
`5,633,912 A * 5/1997 T501 .......................... .. 379/58
`
`.
`.
`_
`.
`(73) Asslgnee" Nokla Moblle Phones Ltd" ESPOO (F1)
`
`455/566
`5,758,295 A * 5/1998 Ahlberg et a1. .
`5,852,783 A * 12/1998 Tabe et a1. ............. .. 455/550
`
`*
`
`.
`_
`) Nonce-
`
`(
`
`.
`.
`.
`Th1s_ Pate“t {SSW/d on ‘1 Con?rmed Pros‘
`@CIHIOH aPPhFatIOI} ?led under 37 CFR
`1.53(d), and 1s subJeCt t0 the twenty year
`patent term provisions of 35 U.S.C.
`154(a)(2)_
`
`5,870,683 A * 2/1999 Wells et a1.
`455/566
`5,884,185 A * 3/1999 Kim ...................... .. 455/550
`5,966,671 A * 10/1999 Mitchell et a1.
`455/575
`6,026,161 A * 2/2000 Larsen et a1. ............. .. 379/433
`
`FOREIGN PATENT DOCUMENTS
`
`_
`
`_
`
`_
`
`_
`
`SubJect to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`This patent is subject to a terminal dis
`claimer.
`
`(21) Appl. N0.: 08/975,126
`(22) Filed;
`Nov, 20, 1997
`_
`_
`_
`_
`_
`Forelgn Apphcatlon Pnonty Data
`(30)
`Nov. 22 1996
`(GB) ........................................... .. 9624520
`7
`(51) Int. C].7 ................................................ .. H04Q 7/00
`(52) US. Cl. .............. ..
`. 455/550; 455/566; 455/575
`(58) Field of Search ............................... .. 455/550, 566,
`455/575, 90; 379/354, 355, 433
`
`(56)
`
`References Cited
`US‘ PATENT DOCUMENTS
`
`EP
`
`EP
`
`633684
`
`679003
`
`* 1/1995
`
`4 10/1995
`
`* cited by examiner
`Primary Examiner—Nay Maung
`Assistant Examiner—Joy K. Contee
`(74) Attorney, Agent, or Firm—Perman & Green, LLP
`(57)
`ABSTRACT
`
`Aradiophone comprises a user interface and a controller unit
`connected to the user interface. The user interface i.e.
`comprises a display and a keypad having at least one
`Operation key Whose function is Controlled by the Controller
`nut and is displayed in a predetermined area of the display.
`The function of Said at last one Operation key is displayed in
`a predetermined area of the display. The radiophone is
`capable of assuming a plurality of states in Which a group of
`predetermined actions associated With the state concerned
`may be performed by said at least one operation key. The
`controller unit displays one of said group of actions as a
`default function in the predetermined area of display.
`
`4,117,542 A
`
`9/1978 Klausner et a1. .......... .. 364/900
`
`8 Claims, 8 Drawing Sheets
`
`5
`
`x 4
`CP’
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`AH &\
`E] E [I]
`E] [51 E_\
`El [I1 I11
`7
`II! El E
`
`26
`
`TCL EXHIBIT 1033
`Page 1 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 1 0f 8
`
`US 6,363,259 B1
`
`Fig.1.
`
`5\
`
`r
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`
`TCL EXHIBIT 1033
`Page 2 of 13
`
`

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`TCL EXHIBIT 1033
`Page 3 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 3 0f 8
`
`US 6,363,259 B1
`
`LO \\ /
`
`w\ N
`
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`
`TCL EXHIBIT 1033
`Page 4 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 4 0f 8
`
`US 6,363,259 B1
`
`F|g.4.
`
`22
`/
`2o
`\ TDK-MOBIL
`
`21
`\ MENU
`
`L
`
`1
`
`21
`\ CALL
`i
`
`2s
`1-/
`
`2345678
`
`12345678
`CALL
`
`1 ________ “I
`: CALLING .
`.
`.
`l 23
`
`I
`
`:
`
`7
`
`l
`
`123456781.)
`END
`l
`
`21
`
`CONNECTED
`
`CONNECTED
`
`23
`12345678-/
`END
`\1
`2
`Q TDK-MOBIL
`—-———>
`
`MENU
`
`HANS G.—
`END
`(a
`4___
`'\
`20
`
`TCL EXHIBIT 1033
`Page 5 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 5 0f 8
`
`US 6,363,259 B1
`
`Fig.5.
`TDK-IVIOBIL f0
`
`MENU
`
`1 SCROLL DOWN
`
`ANDY FINCK
`+35
`8135159541
`
`ciLL y
`
`BOBBY M
`
`SCROLL DOWN
`
`+
`4544225643
`
`+
`4544225643
`
`1
`
`BOBBY M
`
`END
`v
`20 \ TDK-MOBIL
`
`GD
`
`MENU
`
`TCL EXHIBIT 1033
`Page 6 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 6 0f 8
`
`US 6,363,259 B1
`
`|:|g_6_
`
`TDK-MOBIL
`
`2O
`/
`
`MEINU
`
`lNCOM/NG CALL
`+
`JANE
`
`24
`/
`
`CALLING
`ANSWER
`
`JANE
`
`END
`
`INCOMING CALL
`+
`45668922
`
`CALLING
`ANSWER
`
`CALL
`
`END
`
`TDK-MOBIL
`
`2O
`/
`
`TDK-MOBIL
`
`MENU
`
`MENU
`
`Fig_7_ TDK-MOBIL
`
`INCOMING CALL
`/24
`
`MENU
`I
`JANE
`
`CALLING
`ANSWER
`
`T _ DK MOBIL
`
`2O
`/
`
`MENU
`
`TCL EXHIBIT 1033
`Page 7 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 7 0f 8
`
`US 6,363,259 B1
`
`Fig.8.
`
`DETECT AND
`IDENTIFY
`EVENT
`
`<—————
`
`32
`
`STATE
`CHANGE
`EVENT
`
`NO
`
`vlYEs
`33 \ FIND NEW STATE IN
`DEPENDENCE OF OLD
`STATE AND TYPE OF
`STATE CHANGE EVENT
`
`I
`
`\ REPLACE EXISTING
`TEXT WITH NEW
`DISPLAY TEXT
`
`TCL EXHIBIT 1033
`Page 8 of 13
`
`

`
`U.S. Patent
`
`Mar. 26, 2002
`
`Sheet 8 0f 8
`
`US 6,363,259 B1
`
`Fig .9.
`
`TDK-MOBIL @ PHONEBOX
`—-—————>
`
`MENU
`¢
`
`*”
`
`+
`
`4532298343
`
`CALL
`i
`
`SELECT
`
`f 28
`
`E]
`
`/
`+
`27
`4532298343
`CALL
`
`é‘;
`v
`
`+4532298343
`OPTIONS
`
`29
`CALLING + /
`4532293343
`END
`
`26
`SAVE
`‘
`FIND /
`EDIT
`<————
`OK
`
`TCL EXHIBIT 1033
`Page 9 of 13
`
`

`
`US 6,363,259 B1
`
`1
`USER INTERFACE FOR A RADIO
`TELEPHONE
`
`BACKGROUND OF THE INVENTION
`
`The invention concerns a radiophone having a user inter
`face comprising a display and a keypad including at least
`one operation key Whose function is controlled by a con
`troller unit and is displayed in a predetermined area of said
`display.
`The term “radiophone” covers a portable or mobile unit
`Which, With a transmitter/receiver, is capable of transmitting
`signals With speech or data via electromagnetic Waves/radio
`Waves to another unit comprising a transmitter/receiver.
`It is required by the users that the siZe of radiophones, eg
`in the form of portable telephones, be minimized, since this
`Will make them easier to carry and to handle. This neces
`sarily means that the area on the front of the telephone Will
`be reduced, and since it is the front Which forms the basis for
`the major part of the Man-Machine-Interface (MMI), this
`Will be reduced correspondingly. The user interface com
`prises a keypad for entering instructions, a display for
`displaying information, and a microphone as Well as an
`earpiece for picking up and emitting sound signals.
`The last ?ve to ten years have seen a tremendous devel
`opment in such telephones, Where more and more features
`have become accessible in the telephones—Without a cor
`responding change in the interface. The eXtent to Which
`these features is used, varies much from user to user.
`
`SUMMARY OF THE INVENTION
`
`In accordance With the present invention there is provided
`a radiophone comprising a user interface and a control unit
`connected to the user interface, said user interface compris
`ing a display and a keypad having at least one operation key
`Whose function is controlled by the controller unit and is
`displayed in a predetermined part of said display, said
`radiophone being capable of assuming a plurality of states in
`Which a group of predetermined actions associated With the
`state concerned may be performed by means of said at least
`one operation key, said controller unit displaying an action
`from said group of actuibs as a default function. The
`operation key or the soft key is hereby presented as default
`to perform an active action eg With the data Which have
`been fetched from the memory of the telephone or have been
`input to the main area of the display. As default, this active
`action may be to make a call, While alternative functions
`may then be to save a telephone number in the phonebook,
`to edit it, to erase it, etc.
`The invention provides a user interface for a radiophone
`Which facilitates the normal operation, Without this being at
`the eXpense of the amount of features.
`Further, the radiophone may advantageously be provided
`With a scroll key by means of Which the user may selectively
`jump to the preceding or succeeding item at the location
`concerned in the menu loop. In a preferred embodiment of
`the invention, the controller unit also rede?nes the function
`of the scroll key from scrolling betWeen several items in a
`menu to sWitching from the default function to the group of
`functions to Which the default function belongs. It is noted
`that, in the preferred embodiment, the scroll key toggles
`betWeen the default function and the group of functions
`(options), but sWitches betWeen items in the function group
`once this has been selected by means of the operation key.
`The default function is included here at the same level as the
`other functions in the group.
`
`10
`
`15
`
`25
`
`35
`
`45
`
`55
`
`65
`
`2
`So far, the possible functions have been treated in a
`co-ordinated manner to a great eXtent, but the provision of
`a default option, Which covers the major part of the activities
`Which the user normally performs, Will make it easier for the
`users to perform standard actions, Without making the spe
`cial actions more dif?cult to perform, since these are
`achieved via the group of possible functions. This ensures
`that When data are input to the main area of the display, an
`action may be performed on these data merely by a single
`manipulation of the operation key, Which is a multi-function
`key. In the past, this Was feasible only through the use of
`mono-function keys, such as “on-hook” and “off-hook”.
`This means eg that the operation key, Which is frequently
`referred to as a soft key since its function is not ?xed, but
`may vary according to the state concerned, enables a call to
`be established by a single depression of the operation key
`When a telephone number is present in the display.
`In addition to rede?ning the functions of the operation key
`and the scroll key in the preferred embodiment, the control
`ler unit may also advantageously rede?ne the function of the
`erase key, so that the erase key, during a telephone call and
`When detecting an incoming call, changes its function from
`erasing entered characters to interrupting the ongoing call or
`to rejecting the incoming call or to diverting it to a voice
`mail boX.
`If the user decides to make a call by means of the
`operation key, the phone changes its state to a “call estab
`lished” state When the call has been established, and then the
`neW default function of the operation key Will be to termi
`nate the call. This means that another activation of the
`operation key Will terminate the call. If a conference call is
`to be established, this is done by means of the scroll key via
`the group of possible functions associated With the state
`concerned.
`It should be noted that said at least one operation key may
`comprise tWo or more keys Whose default function changes
`When the state changes. Further, nothing prevents said at
`least one operation key from being integrated With said
`predetermined area(s) of the display as keys in a touch
`sensitive display.
`BRIEF DESCRIPTION OF THE DRAWINGS
`The invention Will be eXplained more fully beloW in
`connection With a preferred embodiment and With reference
`to the draWing, in Which:
`FIG. 1 shoWs a preferred embodiment of a portable
`telephone having a user interface in accordance With the
`invention;
`FIG. 2 shoWs sWitching betWeen the states of the tele
`phone;
`FIG. 3 schematically shoWs the hardWare parts of a
`portable telephone Which are essential to the understanding
`of the invention;
`FIG. 4 shoWs a sequence of display images in connection
`With call establishment;
`FIG. 5 shoWs another sequence of display images in
`connection With call establishment;
`FIG. 6 shoWs a sequence of display images in connection
`With call ansWer;
`FIG. 7 shoWs a sequence of display images in connection
`With call rejection;
`FIG. 8 shoWs a How diagram illustrating the decision
`processes in the controller unit in a telephone in accordance
`With the invention; and
`FIG. 9 shoWs a sequence of display images in connection
`With call establishment and access to the phonebook.
`
`TCL EXHIBIT 1033
`Page 10 of 13
`
`

`
`US 6,363,259 B1
`
`3
`DETAILED DESCRIPTION OF THE
`INVENTION
`
`FIG. 1 shows a preferred embodiment of a radiophone
`according to the invention, and it Will be seen that the
`telephone, Which is generally designed by 1, comprises a
`user interface having a keypad 2, a display 3, an on/off
`button 4, an earpiece 5, and a microphone 6. The keypad 2
`has a ?rst group 7 of keys in the form of alpha-numerical
`keys, by means of Which the user can enter a telephone
`number, Write a teXt message (SMS), Write a name
`(associated With the telephone number), etc. The user uses
`the ?rst group of keys primarily for entering data in the
`telephone (entry events).
`The keypad 2 additionally comprises a second group of
`keys Which, in the preferred embodiment, comprises pre
`cisely one operation key 8 or soft key Whose function
`depends on the present state of the telephone. The default
`function or the present function of the operation key 8 is
`displayed in a predetermined area 21 of the display 3. In the
`preferred embodiment, the second group of keys addition
`ally comprises a scroll key 9 by means of Which the user can
`jump selectively from one item to the preceding or the
`succeeding item in the menu loop of the telephone, While he
`gets access to a submenu loop under the item concerned in
`the main menu loop by activation of the operation key. The
`clear key 10 may be used eg for erasing the digit or letter
`entered last by brief depression, While depression of a longer
`duration Will erase the entire number or Word. Like the
`operation key 8, the scroll key 9 and the clear key 10 may
`advantageously be rede?ned in some states, Which appears
`from the folloWing.
`FIG. 3 schematically shoWs the most important parts of a
`preferred embodiment of a portable telephone, said parts
`being essential to the understanding of the invention. The
`preferred embodiment of the telephone of the invention is
`adapted for use in connection With the GSM netWork, but, of
`course, the invention may also be applied in connection With
`other telephone netWorks, such as cellular netWorks and
`various forms of cordless telephone systems. The micro
`phone 6 records the user’s speech, and the analog signals
`formed thereby are A/D converted in an A/D converter 7
`before the speech is encoded in an audio codec unit 9. The
`encoded speech signal is transferred to a physical layer
`processor 10, Which i.e. supports the GSM terminal soft
`Ware. The processor 10 also forms the interface to the
`peripheral units 15 of the apparatus, including the display 3
`and the keypad 2 (as Well as SIM, data, poWer supply, RAM,
`ROM, etc.). The processor 10 communicates With the RF
`part 14 via a baseband converter 12 and a channel equaliZer
`13. The audio codec unit 9 speech-decodes the signal, Which
`is transferred from the processor 10 to the earpiece 5 via a
`D/A converter 8. The units 7—13 are usually integrated in a
`chip set, an eXample of such a commercially available chip
`set being AD20msp410 GSM from Analog Devices With
`associated protocol softWare from The Technology Partner
`ship (TTP).
`The processor 10, Which serves as the controller unit in a
`manner knoWn per se in the preferred embodiment, is
`connected to the user interface. Thus, it is the processor
`Which monitors the activity in the telephone and controls the
`display 3, 21 in response thereto. Therefore, it is the pro
`cessor 10 Which detects the occurrence of a state change
`event and changes the state of the telephone and thus the
`display teXt. Astate change event may be caused by the user
`When he activates the keypad, Which is called an entry event,
`and also by the netWork connection of the telephone or by
`
`10
`
`15
`
`25
`
`35
`
`45
`
`55
`
`65
`
`4
`another event beyond the user’s control, Which is called a
`non user event. Non user events comprise status change
`during call set-up, change in battery voltage, change in
`antenna conditions, message on reception of SMS, etc.
`The invention is based on the idea that the telephone can
`assume a plurality of predetermined states 40.1—40.n, Which
`is illustrated in FIG. 2. A plurality of actions (options
`41.1—41.n) may be performed in these states 40.1—40.n. The
`display image at arrival to state 40.1 may be a telephone
`number or the name of a person contained in the phonebook
`of the telephone, Which is indicated by “state”. “State” might
`also cover “incoming calls”, “E-mail received”, “SMS
`received”, etc. If the display contains a telephone number,
`the default function 42.1—42.n might be “call”. The scroll
`key 8 alloWs sWitching from the default function to the
`group of possible functions, to Which the default function
`belongs. It is noted that, in the preferred embodiment, the
`scroll key 8 toggles betWeen the default function and the
`group of possible functions (options), but sWitches betWeen
`items in the group of possible functions, once this group has
`been selected by means of the operation key. The state is
`maintained during toggling and scrolling through the
`options.
`As Will be seen from FIG. 2, a state change event Will
`result in a change from one state to another. The neW state
`depends on the old state and the nature of the state change
`event. During an established call (“call established” state),
`the default function of the operation key 8 Will according to
`the preferred embodiment be “end”. If a neW incoming call
`“is Waiting”, the user may use the scroll key 9 to produce the
`option list including items such as “end”, “join”, “ansWer”
`and “sWap” Without interrupting the call.
`Each state 40.1—40.n is associated With a prede?ned group
`of functions, actions or options 41.1—41.n, Which are pos
`sible precisely for that state. Establishment of conference
`calls, e.g., can be performed only When a call has already
`been established. Apreferred function serving as the default
`function 42.1—42.n is designated in each of these groups.
`This designation may be performed by the programmer
`during programming, by the user through his rede?nition of
`the default function, or by the telephone itself in that it
`records the frequency of the use of the individual functions
`and appoints the most frequently used one in each group as
`the default function—optionally With the user’s acceptance.
`When the telephone changes its state, the operation key
`can perform the default function if it is activated, and the
`user may toggle betWeen the default function and the Whole
`group of options by means of the scroll key. If the group of
`options is selected With the operation key, the user Will be
`able to scroll through the group of options With the scroll key
`and to select the desired (designated) function With the
`operation key.
`When a function is selected With the operation key, the
`processor 10 runs the associated program sequence to
`execute the function.
`FIG. 4 shoWs the display teXt With simultaneous indica
`tion of the keys of the keypad Which have been activated.
`The display 3 has a display image 20 (“idle mode” state)
`Which shoWs the function of the soft key 8 as a highlighted
`bar in a predetermined area (soft key display) 21 of the
`display. The function of the soft key 8 in the idle mode is
`access to the main menu loop of the telephone. The upper
`part of the display 20 shoWs an identi?cation of the netWork
`operator concerned (here TDK-MOBIL). The display may
`additionally contain an indicator of the antenna signal
`strength and a battery voltage indicator. These are not shoWn
`
`TCL EXHIBIT 1033
`Page 11 of 13
`
`

`
`US 6,363,259 B1
`
`5
`in the ?gures, as they have no importance to the description
`of the default function.
`When the user enters the FIG. 1 by means of the alpha
`numerical keys 7, the processor 10 records this, and the
`telephone then changes to a “number handling state”. The
`default function is call establishment here, and “call” is
`therefore displayed in the soft key display 21. When the
`telephone changes from the idle mode, the operator identi
`?cation disappears, While the entered digit is displayed in the
`main area 23 of the display image 21.
`When several digits are entered, these are displayed as
`they are entered after the digit entered ?rst. When the soft
`key 8 is activated, it is attempted to establish a call, Which
`causes the telephone to change to a “call established state”
`under the control of the processor 10, and the neW function
`“end” of the operation key 8 is noW displayed in the soft key
`display 21. It is shoWn at the same time in the display that
`it is attempted to establish a call, Which is done by the
`indication “calling .
`.
`. ”. The number to Which the connec
`tion is to be established is still displayed in the main area 23
`of the display.
`When the call has been established, this is shoWn by the
`indication “connected” at the top of the display and by an
`indication of the telephone by means of Which the call has
`been established. As Will be seen from the branch, this
`identi?cation may be the telephone number in the ?eld 23 or
`a name code 23a, if the processor recogniZes the number in
`its associated phonebook. The default function of the soft
`key 8 Will still be “end”, Which is shoWn in the soft key
`display 21. If the soft key 8 is activated once more, the call
`Will be interrupted, and the telephone Will return to the “idle
`mode state” With the idle mode display image 20.
`FIG. 5 shoWs a corresponding scenario; here, the user
`decides to use the scroll key 9 from the idle mode display
`image 20 to gain access to the phonebook of the telephone
`under the main menu loop, Which causes the telephone
`number and the name code of the ?rst storage location in the
`phonebook to be displayed in the display. The telephone
`changes to the “number handling state”, and the neW default
`function “call” of the operation key 8 is noW displayed in the
`soft key display 21. By continued use of the scroll key 9 the
`user Will be able to scroll through the phonebook until he
`?nds the number he Wants. As the operation key 8 maintains
`its “call” function as the default function, the call can still be
`established by depression of the operation key 8. Then, the
`call can be established and terminated, as explained in
`connection With FIG. 4.
`FIG. 6 shoWs hoW an incoming call is displayed. When
`the telephone records an incoming call, the processor 10
`detects this as a non user event, and the telephone changes
`from the “idle mode state” to an “incoming call state”, so
`that the display image 20 is replaced by a neW display image
`24. The calling telephone is identi?ed by telephone number
`(right branch) or name code (left branch), if it is recognised
`from the phonebook of the telephone. In some cases the
`calling telephone cannot be identi?ed, and the identi?cation
`?eld Will therefore be empty (not shoWn). The operation key
`8 Will simultaneously assume a neW default function under
`the control of the processor 10, and the neW default function
`Will ansWer the call (“answer”) in the preferred embodiment.
`When the call has been established, the telephone changes to
`the “call established state”, and the display displays the
`name code of the calling telephone or merely indicates that
`a call takes place if the name code is not recogniZed. In this
`state, the default function of the operation key 8 is “end”,
`and it continues to be displayed in the soft key display 21.
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`15
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`25
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`45
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`5 m
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`6
`If the operation key 8 is activated, the call Will be
`interrupted, and the telephone Will return to the “idle mode
`state” With the idle mode display image 20.
`FIG. 7 correspondingly shoWs hoW the display image 20,
`24 changes When an incoming call is detected and the
`telephone changes to the “incoming call state” With the
`default function “ansWer”. If the user does not Want to
`ansWer the call, he can reject the call by depressing the c key
`or divert the call to his voice mail, if he has such a feature.
`The telephone then returns to the “idle mode state” With the
`idle mode display image 20.
`FIG. 9 shoWs hoW it is possible to change from the “idle
`mode state” With the display image 20 (idle mode display)
`to a main menu by activating the operation key 8. Here,
`access to the phonebook is presented as default. If the user
`selects this, he may choose betWeen the individual submenu
`items in the phonebook via the display image 26. If, in the
`“idle mode state”, the user had instead begun to enter a
`telephone number, the telephone Would have changed to a
`“number handling state” With a display image 27 With “call”
`as the default function. The user may sWitch to possible
`functions in this state (display image 28) by means of the
`scroll key 9, and these functions comprise the submenu
`items (display image 26) of the phonebook. If, instead, the
`user had selected the default function in the “number han
`dling state”, the telephone Would have started establishment
`of a call (display image 29).
`When the telephone is in idle mode, it communicates With
`a ?xed station at regular intervals via paging messages to
`maintain the connection, and it monitors its peripheral units
`in the form of battery, keypad, etc. It is the microprocessor
`10 Which controls these activities, and When it detects an
`event, it checks Whether the telephone is to change its state,
`eg from the “idle mode state” to the “incoming call state”.
`FIG. 8 illustrates this process, Where the processor in stage
`31 monitors and detects occurring events. If a detected event
`is not a state change event, the processor returns to the
`search stage and searches for a neW event. If the processor
`identi?es the event as a state change event in the decision
`stage 32, the processor identi?es the neW state in stage 33,
`Which takes place by means of a state tree, and replaces the
`old display text by a neW default function indication of the
`neW text, Which takes place in stage 34.
`Although it is shoWn in the preferred embodiment that the
`functions of the telephone might very Well be controlled by
`a single operation key, it may be found expedient in some
`cases to use tWo or more operation keys in the second group
`of keys, optionally integrated in a touch-sensitive display.
`In vieW of the foregoing description it Will be evident to
`a person skilled in the art that various modi?cations may be
`made Within the scope of the invention.
`The scope of the present disclosure includes any novel
`feature or combination of features disclosed therein either
`explicitly or implicitly or any generalisation thereof irre
`spective of Whether or not it relates to the claimed invention
`or mitigates any or all of the problems addressed by the
`present invention. The applicant hereby gives notice that
`neW claims may be formulated to such features during
`prosecution of this application or of any such further appli
`cation derived therefrom.
`What is claimed is:
`1. A radiotelephone having a controller unit controlling a
`user interface, said user interface comprising:
`a display;
`one operation key Whose function is controlled by the
`controller unit;
`
`TCL EXHIBIT 1033
`Page 12 of 13
`
`

`
`US 6,363,259 B1
`
`7
`said display having an area solely dedicated for displaying
`the present function performed When pressing said one
`operation key;
`said radiophone being capable of assuming a plurality of
`states;
`groups of predetermined actions that are adapted to be
`performed by pressing said operation key being de?ned
`by the controller unit in said plurality of states;
`said controller unit dedicating an action from said group
`of actions as a default function for the operation key in
`dependence on the state assumed by the radio tele
`phone;
`a scroll key alloWing the user to scroll betWeen actions
`included in said group of actions available for said
`operation key;
`Whereby the action presently dedicated to the operation
`key and being displayed in said dedicated area in the
`display is changed.
`2. Aradiophone having a controller unit controlling a user
`interface, said user interface comprising:
`a display;
`a single operation key Whose function is controlled by the
`controller unit providing access to a menu loop as Well
`as to a phonenumber database included in said radio
`phone;
`said display having an area solely dedicated for displaying
`the present function performed When pressing said
`single operation key;
`said radiophone being capable of assuming a plurality of
`states;
`groups of predetermined actions that are adapted to be
`performed by pressing said operation key being de?ned
`by said controller unit in said plurality of states;
`said controller unit dedicating an action from said group
`of actions as a default function for the operation key in
`dependence on the state assumed by said radio tele
`phone;
`a scroll key alloWing the user to scroll betWeen actions
`included in said group of actions available for said
`operation key;
`
`5
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`15
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`25
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`35
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`8
`Whereby the action presently dedicated to said operation
`key and being displayed in said dedicated area in said
`display is changed.
`3. Aradiophone according to claim 2, Wherein said default
`function for said single operation key in idle mode provides
`access to said menu loop.
`4. Aradiophone having a controller unit controlling a user
`interface, said user interface comprising:
`a display;
`a single operation key Whose function is controlled by
`said controller unit and provides access to establishing
`and terminating calls;
`said display having an area solely dedicated for displaying
`the present function performed When pressing said one
`operation key;
`said radiophone being capable of assuming a plurality of
`states;
`groups of predetermined actions that are adapted to be
`performed by pressing said operation key being de?ned
`by said controller unit in said plurality of states;
`said controller unit dedicating an action from said group
`of actions as a default function for said operation key
`in dependence on the state assumed by said radio
`telephone;
`a scroll key alloWing the user to scroll betWeen actions
`includes in said group of actions available for said
`operation key;
`Whereby the action presently-dedicated to said operation
`key and being displayed in said dedicated area in said
`display is changed.
`5. Aradiophone according to claim 4, Wherein said default
`function for said single operation key is in idle mode When
`said user has entered a number by means of alphanumeric
`keys is to establish a call.
`6. Aradiophone according to claim 4, Wherein said default
`function is for said single operation key.
`7. Aradiophone according to claim 5, Wherein said default
`function is for said single operation key.
`8. Aradiophone according to claim 4, Wherein said default
`function is for said single operation key When an incoming
`call has been detected and is ansWering the call.
`
`*
`
`*
`
`*
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`*
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`*
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`TCL EXHIBIT 1033
`Page 13 of 13