CA2226513A1 - Battery powered device - Google Patents

Abstract

A battery powered portable electronic device includes an interchangeable battery pack (2). The battery pack is fitted to the main unit (1) of the device. An auxiliary functional unit (AFU) (10) is contained within the battery pack (2). It communicates data bidirectionally with circuits within the main unit (1) of the device. The auxiliary functional unit thereby performs an auxiliary function in conjunction with the circuits in the main unit of the device. The auxiliary functional unit may be a pager and the main unit may be a cellular telephone. Then in a standby mode the phone circuits are switched off and the pager only left powered-up.

Description

CA 02226~13 1998-01-07 BATTERY POVVERED DEVICE
BACKGROUND TO THE INVENTION
The present invention relates to a battery powered electronic device and particularly, but not exclusively, to battery-powered cellular telephones, and methods S of operating cellular telephones and cellular telephnn.o networks.
In ~l~$igning consumer electronics products - such as cellular telephones, other cl mmlmi~tions or data processing equipment or audio-visual equipment suchas camcorders - there is a general need to provide hllpl~v~d performance and additional operational features so as to çnh~nre the attractiveness of the product to 10 the consumer. On the other hand, for each such product there is usually a sector of the market which is extremely price sel~iLiY~. For this part of the market there is a need to skip out all but the most essential features in order to ~..i,.;.,.i~ the price.
These conflicting needs can be met by providing dirr~l~nL design~s for the different market sectors, but then there is a loss of the economies of scale which might 15 otherwise be obtained.
Another important design factor in the m~mlf~ lre of battery-powered products is the need to m~ximi.ce battery life. Particularly in relation to cellular telephones, the m~ximnm standby time, that is the time for which the telephone can be left not in active collullul~ication but in re~lin~ocs to receive a call, is an important 20 performance parameter. It is, for example, one of the most frequently quoted parameters in culll~laLi~e reviews of such phones. Despite the practical and commercial importance of this parameter, it has not hitherto proved possible to extend the standby time for a typical ETACS phone much beyond 24 hours using a 600 mAHr battery.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention, there is provided a battery-powered portable electronic device including an interchangeable battery pack ~ fitted to a main unit of the device, characterised by an auxiliary functional unit SUBSTITUTE SHEET (RULE 26) CA 02226~13 1998-01-07 WO 97/03534 PCT/S~f 5.'~-C0 contained within the battery pack and arranged to cs~.. -ie;"~ data bidirectionally with circuits within the main unit of the device, the auxiliary functional unit thereby ~elrollmllg t_e auxiliary function in collju~lcLio~ with the said circuits within the main unit of the device.
S By an auxiliary function is meant a function which adds to or enh~nres the imal~y functioning of the device and not merely charge management or other functions of the type convellLionally associated with battery packs.
This aspect of the present invention takes advantage of the fact that the battery-powered electronic device ..~ocçss~. ;Iy has at least one hl~ ;hallgeable module 10 and associated interf~re~ namely that of the battery pack itself. By providing auxiliary functional units which fit within the battery pack, and using the Pnh~nrec~
battery pack interf~re, the invention makes it possible for the same basic unit to provide dirrc:lcllL levels of function for dirr~;lcllL sectors of the market, while m~i..l;.i..i.~, m~Yimllm ecc)nnmi~-s of scale. All this is achieved without adding 15 sif~nifie~ntly to the size, complexity or cost of the base-level model, since no additional intPrf~re is required.
In the case of a cellular telephone, the auxiliary functional unit might colll~lise, for çY~mrle, an ~ls~ g m~rhin~, a silent vih.~lli..g alarm, a cordless phone or a pager as ~ cn~e(l below in relation to the other aspects of the invention.
20 The unit may provide two or more such functions in combination, for example both an al~w~lillg m~rhine and a pager.
Preferably the main unit of the device inrllltles a user input device and is arranged to c.~.. -ir~le control signals to the auxiliary functional unit in response to a user input. The user input device might be, for eY~mrle, the keypad of a 25 cellular telephone and may be used to program and control the auxiliary fimrtion~l unit via the battery pack interface.
Preferably the int~orf~ee for the battery pack inrlllr~es a connection for the tr~n~mi~sion of power from the main unit to the auxiliary functional unit.
Although the auxiliary unit is located adjacent the battery power supply, it is 30 found to be advantag~eous for many purposes if it is not directly connected to the b~tteries, but l~ceiv~s its power via the main unit. This reduces the need for power switching or control ch~;uik y within the auxiliary unit.

CA 02226~13 1998-01-07 This aspect of the invention also ~c~ ses a battery pack incorporating an auxiliary filnrtion~l unit.
According to a second aspect of the present invention, there is provided a cellular tPlP.phonP, ch~r~ctPri~Pcl by a pager module povv~.~d independently of the 5 p~ aly telephony circuits of the telephone and arranged to power-up the said telephony circuits when a paging signal is received.
This aspect of the invention takes a novel approach to the problem of extending the standby time of a cellular telephnnP. Instead of ~LL~ Lil~g to enh~nre the batteries or to reduce the power drain of the telephony circuits, the present 10 illV~lLol~ have added to the tPlPphonP a pager module able to "wake-up" the phone on receipt of a pager signal. This allows the main circuits to be turned OFF and so reduces the battery drain from the 20 to 40 mA convention~lly associated with standby mode to a much lower level, typically around 0.1 - 0.4 mA, associated with the drain current of the pager in standby. By using the pager to provide the standby 15 fimr.ti~m, the ~.lv~ have been able to extend the standby lifetime of the phone from around 24 hours to as long as 3 weeks, thereby doing away with the need for daily lcchdl~g of the baLLt;lies.
Preferably the pager module is arranged to cl)............ ;r~t~ caller line i~ienti~lr~ti~n (CLI) data to the pl~l~y telephony circuits.
Preferably the pl.lllaly telephony circuits are arranged to display to the user the CLI data received from the pager module.
Preferably the ~lillldly telephony circuits are arranged to make a registration with the cellular network ~ltr,m~tir~lly after p.,welillg-up in response to a paging slgnal.
It is found to be particularly advantageous to have the pager use CLI data to ready the telephone to make a return call to the caller at the press of a button, should the user wish to do so.
The pager is preferably fitted within a battery pack, in accordance with the first aspect of the invention. In this case, preferably the pager is arranged toc"""".~,ir~te data bidirection~lly with the plilllaly telephony circuits via theconnPction between the battery pack and the main unit of the telephone.

CA 02226~il3 1998-01-07 WO 97/03534 PCTISG3. rl~

The phone may be arranged so that the user can choose bc;Lwe~ll one mode in which, after the completion of the call, the plillldly telephony circuits are powered down again, or a second and all~ iv~ mode, in which at the completion of the call the telephony circuits remain ~ .,d, giving the user the option of making a further 5 call.
According to a third aspect of the present invention, there is provided a method of operating a cellular telephone inrln-ling placing the telephone in a standby mode to reduce power col~ulll~Lion, chz.r~c.teri~.-rl in that in standby mode power to the ~lilllaly telephony circuits is turned OFF and power to a pager module remains 10 ON, and in that the pager module, on sl~bseq~lent1y l~ceivhlg a pager signal, ~wiL~ es ON power to the lJlilllaly telephony circuits.
Optionally, at the end of the cullv~l~aLion upon detection of mobile/network release, cellular phone IJl~aly circuit power may be switched OFF, and power to the pager lclllail~s ON, ready for the next hlcollliug call.
Accolding to a fourth aspect of the present invention, there is provided a method of up~laLillg a cellular telec~,.. l.,-ir;.lions network characterised by Ll,...~..lil~;l-g a pager signal from the ll~Lwulh to a cellular telephone, receiving the pager signal in a pager module in the cellular telephone while the lJlilllaly telephony circuits of the cellular telephone are powered-down, switching ON power to the 20 ~lilllaly telephony circuits in response to the pager signal, and subsequently establishing a cf~nnrcti-~n between the said ~lilllaly telephony circuits and the network.
Preferably the method further culll~lises lc:ceivillg at the ll~;Lwolh exrh~nge a ~estin~tion telephone number from a call originator, and only when the ~ stin~tion cellular telephone is ~1~Le.. . . i . .--~ to be not registered, then uuL~uLLillg from the ncLwolh exrh, nge a pager signal, and otherwise establishing a connection directly with the L~ llaly telephony circuits of the ~lestin,~tif~n cellular telephone.
Preferably the llc~Lwolh exrh~nge stores a record of ~estin~tion numbers and 30 corresponding pager numbers, and when the ~lestin~tion cellular telephone is llrtPrTninr(l to be not registered then retrieves the corresponding pager number for use in .~ign, lling the pager module.

WO 97/03534 PCT/S~,_ 5t ~ ~ ~

The present invention's approach to ~x~ cellphnn.- standby time can be implemt--ntr~l simply using existing tel.ophnn~ and pager nc~Lwc,lh~. This however requires the caller to have both the telephone ~ bel and pager number of the de,stin~tion. This can be avoided, and the invention implemrntr-l in a manner S ll~l~pal~llL to the user, if the lldwclh exrh~nge logs when a given phone is not registered, and then retrieves and uses the corresponding pager number from a ~h~e to ~ it on the pager n~Lw~lh thereby ~wil~;hillg ON the phone and enabling a connection to be made.

Embo~lim~nt~ of the invention in its dirr~iGllL aspects will now be described in further detail, by way of example only, with l~rGl~nce to the ~rc.~ lyhlg whl~ in which:
Figure 1 is a block diagram which shows sr,h~,...~lir,~lly a device embodying the present invention;
Figures 2A and 2B are a front elevation and side elevation respectively of the device of Figure l;
Figure 3 is a sectional view of a battery pack incorporating a pager;
Figure 4 is a sectional view of a battery pack including an a~ g m~rhinr;
Figures SA and SB are block di~gr~m~ for the pager of Figure 3 and SC
shows the intrrf~re for the pager or other AFU;
Figure 6 is a ~ gr~m illustrating a first method of operation for a network;
and Figure 7 is a diagram for a second method of operation for a network.

DESCRIPTION OF EXAMPLES
A battery-powered portable electronic device, in the present example a hand-held cellular telephone or "h~nrlphone" 1 inrhl~1es an i..L~lchallg~able battery pack 30 2, which is fitted to the main body of the h~nflphonP 1 and is el~ctrir~lly connrctrd to the h~n~lph( ne 1 via an i..l~ . ri-re 3. The handphone 1 includes a power management circuit 4, a control microprocessor 5 and telephony tr~n~mi~ion/

WO 97/03534 PCT/S~ ~_6 reception circuits 6. A key pad 7 acts as a user input device, serving both the dialling of numbers, and also for pro~,.. ~.. i~g of the diL~cuL functions of the h~nrirhc)ne 1. The number dialled, and other inllir~tion~ relating to the functioning of the phone are displayed on an LCD 8. These ~ uy circuits within the S h~n~1rhnnl- 1 are all conventional in construction, and so will not be described in further detail here.
Figures 2A and 2B show the exfrrn~l features of the h~nrlrhone 1 and battery pack with AFU 2. As is collv~ on~l with h~n-lphone battery packs, the battery pack when fitted to the phone is n~ rrn~lly held rigidly to the body of the device with 10 a connection established to the circuits of the handphone 1 using a pin and contact arrangement. However, the pack may be released when, for example, it is decided to recharge the bdU~lies.
In the present example the h~nt1rhnn-? uses a Lld~lliL frequency band from 872 MHz to 905 MHz and a receive frequency band from 917 MHz to 950 MHz.
15 It ~eldl~s in power class 4 with duplex spacing of 45 MHz and channel spacing of 25 KHz. The phone can access 1320 cll~nn~ It ct-l..,."..~ir~tPs using FM
mod~ ti~ n with FSK M~.~.'h~ jk;. coding. In this example, the phone has physical Aimen~ion~ of 149 x 55 x 26.5 mm. It inrhl-1~s a 2 x 12 dot-matrix :~u~ Lwi~L LCD
with back lighting.
For conventional operation, in which the battery packs serves only to provide power to the h~nrlrhnne 1, then the pack may contain collv~uLional AA (NiCd) batteries. ~l~r.~ 1ivt:1y, as in the eY~mrl~ illn~tr~te~l, pi;~ ,.lir. NiMH or NiCd batteries may be used. In this case, the battery pack holds in addition to the batteries an auxiliary filnrtion~l unit (AFU) 10.
The batteries 9 supply power to the h~n-lphnne 1 via the int~ re 3. The AFU 10 leceiv~s power from the h~ hn~r- 1 via the interf~ce and cu~ r~te~s data bidirection~lly with the h~nrlphnnr 1 via the i"l~ . r~e It may be programmed and controlled via the keypad 7 and l~ v~ ces~or 5 in the h~n~lrhnne 1. In a first example illustrated in further detail in Figures 3 and SA to SC, the AFU is a pager.
As will be described in further detail below, this functions in combination with the circuits in the handphone 1 to extend greatly the standby time of the handphone.

, WO 97/03534 PCT/SG~rliX-~

As seen in Figure 3, the cas~:w~,lh for the battery pack 2 is divided at a~plo~ Lely half its height by an internal wall 31. A PCB 32 mounted on one sideof the dividing wall 31 provides the circuits of the pager. Four pri~m~tir b~tteries 33a to d are cont~inr~ in the pack below the dividing wall 31 and are electrically 5 cnnnect~d to the pack output pins 34 via contact pads 35. The pack includes a l11F~ O1 36 (SEMITEC 103 AT-2) and a poly-switch 37 (RAYCHEM SRP200).
These both serve as safety devices to protect against O~ hF-~I;IIg of the pack when charging. A ferrite ~nt.-nn~ 38 mounted directly on the PCB picks up the paging signal Ll,...~i...illrd by the paging l~lwolk to the pager.
The output pins from the pack 34 are shown in further detail in Figure 3. It co~ ,lise~ 10 pin contacts having a pitch of 2.54 mm. The battery ground and battery positive contacts are located at the extreme ends. This is found to give better electrir~ lÇulllla~ce. The pin labelled Pwr-to-Acc provides a power input signalto the accessory pack. The AFU electronics Ill~,.crole only get the power when the 15 pack is mounted on the main ele-;L~ ics. This Lll~lcfol~ provides an interlock m~ch~ni~m for the pu~ il g-up of the AFU. Select line 1 and 2 are logic inputs to the main electronics in-lir~tin~ the type of AFU being operated. The Ll~llliL data and receive data pins cu------,-";~ signals carrying proprietary protocol i.lç~llnalion between the main electronics and the AFU electronics and provide data tr~n~rti~n~
20 in respect of the pager, al~ hlg ...~rhi,.~ or other AFU.
The interf~re b~Lw~:ell the battery pack inrln-1ing the AFU and the main electronics, i.e. the main circuits of the h~n~lphone in the present example, uses a proprietary serial protocol de~ign~d to provide m~ximllm flexibility and ease ofco..."""-ir~lion It has two basic data formats. One to carry messages from main electronics to e.~h~-r~-.Pnt (i.e. AFU) ele~ ics, the other in the reverse direction.
The protocol defines mFc~ge type fields, device i~l~ntifir~ti~n code fields, andlongit~ in~l reclnn~l~nr-y check (LRC) fields, in addition to data fields. It provides a mech~ni~m for acknowledgement of data tr~n~rti~ns between the main electronicsand the enh~nee-m~nt (AFU) ele-;Llvllics.
In a second example shown in Figure 4, the AFU 10 contained within the battery pack 2 is an al~vv.,lhlg m~rhin.-. As in the previous example, the electronics WO 97/03534 PCT/S~

for the a~ ,.hlg m~rhinr are provided as a PCB 42 mounted on a dividing wall 41 of the battery pack, as shown in Figure 4.
A variety of other options are possible for the AFU. For example, it may c~ ,- ;x~ a silent vibrating alarm to be used when desired in place of the usual audio 5 ringing tone of the h~n~lphon~ 1. The operation of the a-~wcli. g m~rhint- is described in further detail below.

CORDLESS PHONE
A further option is that the AFU may enable the h~n(1rhnne to function as a 10 cordless phone. In this case the AFU col.L~..ls circuits for providing a relatively low power radio frequency linh between the phone and a cordless phone base unit cnnnrctr-l to a telephone line. The AFU the allows the AF circuits of the h~nflphnnr to be used in making a convention~l telephone call via the t~l~,phnn~, line. While in use in this manner the h~nrlrhnn~ is not in ~ ib~.ed with the cellular network and 15 does not incur charges from that llcLwulh.

ANSWERING MACHINE
The a~wcling m~rhin~ is tlescrihe~l in detail in Annex B. It inrlndPs a Solid State memory for lccol~ g m~c~ges and includes an option for recording an 20 ongoing Cull~ ion between the h~ .hnlle user and a called or calling party.

SERIAL BUS PROTOCOL
The serial bus provides means to establish point-to-point c~,. ~ -- - -- - ,~ir~tinn between the ~n-lset and the Auxiliary Functional Unit (AFU). There are three types of 25 mr~S~ge~ tr~n~rtr-1 - Comm~n-l messages - Respond mrc~gr,~
- Status Messages Either device i.e. the T~nrl~et or AFU may issue and respond to a set of comm~n~30 All messages are binary based (with the exception of monitor status where its data is ASCII-based for ease of Lllo~ g). All messages are single word.

Phvsical Layer Specifications Type : Full Duplex Asynchronous Point-to-point link Speed : 9600 BPS
Data bits : 8 Parity : None Stop bits Comm~n-1 ~e~ es: At the link level each ct)mm~n-l me.C.~ge will be 10 ACKed or NACKed by the receiving party according to the reception of the message. For some c.. l.. ~"~1~, the req~lest~.-l operation of the collllllalld will be responded by a s~,....l~ response message.
The following is the list of c.~ e that are applicable to the AFU
providing a functionality of either a Pager or an Alhs~ lg ~r.llinP.
15 Comm~n-l~ Relatin~ to an Al~,~lill~ M~ehine 1. Turn off the Auxiliary Fnnrtinn~l Unit 2. Play back the Slot No. x 3. Play back current slot 4. Record Slot No. x 20 5. Record Current slot 6. Stop Play back/Record 7. Turn off the Auxiliary Fl-nrtinn~l Unit 8. Program'Decoder' Comm~n~1~ Relatin~ to Pa~er 25 1. Set Time 2. Read Time 3. Wake-up Enable/Disable 4. Read Page 5. Delete Page 30 6. Any Unread Page 7. Lock Page 8. Unlock Page WO 97/03534 PCT/S(,r5/ _O_~

In response to the c~ set the AFU reply with a~ro~lid~ response along with its Device T~Pntifi-~ti~n Codes (DIC). Status messages from the AFU
in-lir~t~ certain c~n~iitinns are s~ticfiprl~ hence action can be ~ri~in~tPd by the main unit. For Pager AFU these are:
1. Page Alert : In response to an çxt~rn~l page reception.
2. Out of Range : When the received messages exceeds the m;.~;,.. l number of allowed locations in the Pager.
3. Real Time Clock Tick : Gen~r~t~l once in a minute.
4. Low Battery : When the current battery value goes below the preset LOW value.

EXTENDING STANDBY TIME
The use of a pager in combination with a h~n-lphonP to extend the standby time of the h~n~lrho~ will now be d~scrihe~l in further detail. The pager is preferably, but not nPcPs~rily, provided as an AFU within a battery pack, as ~1PS~ rihed above.
Four modes of operation may be defined for a cellular phone:
20 (A) Full-OFF, battery not ~tt~r.h~-1 In this state t_ere is zero current drain from the battery. The phone cannot originate a call, and cannot (~ lr. a call.
(B) Battery ~tt~.ht-rl, "Pagullar" standby. In this state there is a small current drain and current going to the pager. The phone is in OFF state. Only the wake-up circuits in the phone are powered to detect ON/OFF key press, or wake-up signals from the pager module.
(C) Switched on, cu--v~ 1 standby mode. Here the cellular phone is not in an act of co-~vc;~ ion with the base station but is "registered" and ready to receive a call from the cellular base station. The battery drain is .cignific~nt in the range 20 - 50 mA.
30 (D) Switched on, call in l?rOgl~ss mode. Here the cellular phone is in activecu~ ion with a cellular base station. The battery drain in this mode is very high, typically 500 to 700 mA.

CA 02226~13 1998-01-07 WO 97/03534 PCT/S~ 5.'.

Modes A, C and D are conventinn~l. Mode B is provided by phones embodying the present invention, and provides an z~llr.~ 1iVC standby mode, termed by the illV~llL~ "Pagullar standby" which enables a greatly hl~ ,a~ed standby time.
The battery standby time is the time ~lnr~tion in which the cellular phone can be in S standby mode with a fully charged battery of pre-defined capacity measured in mAHr. As already ~ ed, typically for ETACS type h~nt1rhones~ a standby time of about 24 hours is achievable. In this example of the present invention, the standby time is greatly ext.on~led through the use of a pager incorporated in the handphone. The pager is conn~ctecl to the circuits of the h~n-lphone by an int~rf~re 10 of the type ~1est~rihe-1 above and is independently powered from the batteries via the handphone. When in "Pagullar standby" mode the main circuits of the handphone are switched off. The pager h~w~v~l rt;lllai~ in a standby state in which it has a small current drain of around 0.1 - 0.4 mA. When a call is to be made to the switched-off h~n-lphone, then a paging signal is sent to the pager which in turn15 Ll~nsllliL~ a control signal via the inttorf~ee to the h~nr1rhone to turn the handphone ON. Two scP-n~rios for making or If III;II-I;IIg a call will now be described by way of example.
Scen~rio A: This is a simple solution which can be implementr~l imm.~ tely using e~ ting L~C~LWUll~ and without reqlliring co-operation belw~ the pager and20 mobile phone n~lwolh~. Following this scenario, the call originator uses the pager ulllbel to make a page to the pager options pack in~lic~ting that he wants to make contact with the cellular phone. On receipt of a paging signal, the caller's number is captured by the pager using caller line i~le-ntifir~tion CLI. The pager then Lldl~llliL~ a control signal to wake-up the phone and C~ "~ ir~tPS the CLI
~5 hlrolllldLion to the cellular phone via the i~ . rhre. The caller's number is displayed on the h~n-1rhnnr display autom~tir~lly. Simn1t~nrously, the h~n-lphnne makes registration with the cellular ll~twolh. Should the handphone user choose to return the call, then he or she presses the SEND key, the cellular phone dials the CLI
number, and hence is able to return the calling party's telephone call. This approach 30 has the advantage of not reqlliring any modification to exi~ting network. However it does require the caller to know both the telephone number and the pager number CA 022265l3 l998-0l-07 of the ~1e,ctin~tion. On return of the call, the cellular phone is the inhi~tor of the call and hence has to pay that portion of the cost for the call.
Scenario B: This uses a modified mode of operation for the ~ wolh~ to mahe the process more friendly to the user. It is however more complex to S implement. It requires the co-u~ela~ll of the cellular and pager ~LWCJ1h operators to include intelligçn~ e in the ll~Lw~lh m~n~gem.ont sor~w~. Following this scenario, the call ~ri~in~tor mahes a call to the cellular phone number. The cellular phone ll~Lwolh hnows that the phone is switched off and hence not l~ t~,r~d. Thecellular ll~;Lwolh then looks up in a d~t~h~e the equivalent pager number m~t~h~10 to the cellular phone number. Tldl~al~llLly to the calling party, the cellular phone network i..il;n~s a paging call through the paging lwLwolh to wake-up the cellular phone, awaits registration, and completes the call when the freshly awoken cellular phone is l~ L~ d with the Il~Lwolh.
In this way, the caller does not need to hnow if the cellular phone is ~wiL~l~d 15 on, or if it has a pager option. The caller makes a "normal" call and the method of operation is ~ lL both to the caller and the called party. The cellular phone and the pager n~W~1h do the ~ign~llin~ O~ 11Y. While the operation of the phone appears COll~t;. .1 ion~l to the user, the ability to switch off the main circuits and leave just the pager in standby reduces a greatly increased standby time which may 20 be as long as 3 weeks.
Figure 6 illn~tr~t~s scen~rio A cli~cll~ above, and Figure 7 scenario B.
In the following i.l.pe...lif~e~, Ap~endi~ A describes in further detail the plug-in pager module, A~e~ B describes the plug-in a~w~ g . . .~e~ and A~c~li~
C describes the ~l~,plictary serial data protocol.

WO 97/03534 PCT/SC, 51~C - ~

APPENDIX A

WO 97/03534 PCT/SG9r'~-D-~

1. Introduct;Qn This document attempts to describe the objective features and ergonomics of the optional plug_in pager for the 2nd Generation AMPS/TACS handphone from the end user point o~view.
It is envisioned that the pager will be housed in the battery compartment. Other than incorporating the control into the keypad and display panel of the handphon~, no extra switch and display will be provided by the plug-in pager. This document includes descriptions on the host handphone LCD display, usage of the keys, user selectable options and modes of operations.
However, it will not cover user requirements on mechanical and performance parameters (such as receiver sensitivity, battery life etc).
Listed below is the summary of the features:
. . = .
O Pager on/off (independent of the handphone) O Paging Format: POCSAG
O Alphanumeric 0 Real-Time Clock O Time-Stamped Message O Store 16 message. Each with 20 characters max.
O Audible / Silent Alert Option Cp.s. w/o vibrator) O Unread Message Indication 0 Duplicated Message Indication 0 Out-of-Range Indication 0 Wake-Up Handphone Option SussTlTuTE SHEET (RULE 26) CA 02226~13 1998-01-07 WO 97/03534 PCT/S~

2. Features Review INDEPENDENTPAGER ON/QFF
0 The plug-in pager can be turned on or offvia the handphone's Accessory Menu.
0 While the plug-in pager is powered down, only the built-in real time clock will 0 function.
O Once the pager is turned on, the h~n~lphone can be switched on or off without affecting the state of the pager.
0 If the phone is turned off and the wake-up option is disabled (see description below), the pager will not give alert upon reception of good page. The incoming page will be stored in the receive buffer, which can be accessed by the user once the phone is turned on (notification will be shown).

P~GING FORMA T

REAL-TIME CLOCK
0 The Real-Time Clock is always running, even if the pager is turned off.
0 The clock is used for:
1. Time-~L~lllpil-g all h.co.";ng pages 2. Display the current time on the handphone, even if the pager is turned off.
0 The clock and time stamp will be displayed in 24-hour format.
0 Set the time via sub-menu under the Accessory Menu.

INCOMING PAGES
O Holds up to 16 alph~mlm~.ric m~ss~pes 0 Each message can be 20 characters long max.
0 The receive buffer is numbered with buffer #1 holding the latest page.
0 If the buffer is full, any new message will replace the oldest un-locked one in the buffer.
0 User may access the receive buffer by scrolling through via the Mailbox Mode.
0 If the currently ac.ce~.~ed message is a phone number, user may use One-Touch Dialing to initiate a callback.
0 Messages stored in the buffer can be deleted either individually or altogether.

SUBSTITUTE SHEET (RULE 26) WO 97/03534 PCT/SCg 5/~ 0 C C

SO~ C~ J~DICATION
O Source identifier. tA], [B], [C] or [D] will be displayed togcther with Ihe incoming message to indicate its source.

J,(~N(~ / lJN~ N~r MF.~i.SA(~;F~S
O Messages in the received buffer can be locked or unlocked individually.
O Locked messages cannot be deleted unless they have been unloclced.

~vlFA~lOR Y R~;~TF.NTI(~N
O Only unread messages and locl;ed messages in tl-e received buf~er are retained when the pager is turned off ,4~E~RT OPT~O~!S
O User may choose either alert tone or silent alert only (blin~: ng LED only, no vibrator option is offered).
O The LED on the top facia of the handphone will also blink when there is an incoming page.
O Regardless of ;he alert tone/silent setting, "NEW PAGE message and the time-stamped received message will be shown for 20 seconds.
O If the phone is powered down, there ~vill not be any alert tor.e or blinl;ing LED indication.
O If a page is received while the phone is on a voice channel, there will bc "soh" beeping tone sounded in the earpiece regardless of the alert tone/silent se..ing.

~RFAr~ ~F'.S.'iA(~F f Nr)l~'A Tro~
O An unread icon will always be turned on until the all the messages are read at least once.
(This icon is dedicated to the plug-in pager and it is not utilised by the handphone) O While the received buffer is being scrolled throucJh, the unread icon will be turned on only if the currently displayed page is unread.

SUBSTITUTE SHEET (RULE 2~) WO 97/03534 PCT/SI._ 5h ~ û ~ ~

I~)llPI~ICAT~D ~S~SAG~
O If a new paging message is identical to a prev;ous one already stored in the, received buffer the time stamp will be updated and the message will be placed in buffer t~l.
O D~? PAGE messa3e will be shown instead of NE~? PAGE for 20 seconds.

O~/T-OF-R~NGr~ INDJ<~A JION
O An inverse video message o~rr will be sllown ~A~hen the pager is out-of-range. (The message will temporarily be suppressed if the phone enters into any display modes, such as Menu mode, Alpha mode etc.) W,4r~F-~JP HA~DPl~OA'F~ OPTrO.N
O The user may choose whether or not ar incoming page ~ ill autornatically turn on the handphone.

SUBSTiTUTE SHEET (RULE 26~

CA 022265l3 l998-0l-07 WO 97/03534 PCT/S(,, ~ ~ _ C -3. M~n-M~chine Interf~cç

Since the plug-in pager is sharing the display (LCD panel and the top LED) and the keypad with the handphone, the ergonomics of the pager are designed to be as consistent as possible to that of the handphone.
Many of the icons and but'ons are shared between the handl~none and the pager. However, there are certain buttons and icons dedicated for the plug-in pager only:
Icon Button ACC MAIL BOX (~31) ~READ

The Mail Box Mode (thru' which the user may access paging messages) will be cancelled when there is an incoming phone call. To make incoming call to have highest priority is consistent to the basic ergonomics of the handphone.

MF.N~f OPF.RATff)N
0 Power on/off and configuratlon of the plug-in pager are accomplished through the Accessory Menu (Menu ~19).
0 The phone detects the presence of the device, and displays it as follows:
MENU TITLE MENOU
~' C)EVICE DETECTED MENU MODE
0 Press STO to get into the sub-menu of the Accessory Menu The structure of the sub-menu is depicted below:

SUBSTITUTE SI~EET (RULE 26) -WO 97t03534 PCT/S(~, 51'~ 6 Acc. Menu (Menu 19) " " !! " "
Sub- Power Wake-Up ~lert Option Set Clock Menu(Menu 19.1) (Menu 19.2) (Menu 19.3) (Menu 19.4) PO WER ON/OFF ~ r F- T~ST
O Enter Menu mode and go to Power Sub-Menu 19.1.
MENU: 19.1 FUNCTIOI~I P AGER ON/OFF
DISPLAY l POWER Press STO
DISPLAY ~: >{current_option}
OPTIONS: ON
OFF ~ default O Use ~ or \~ but-ton view the other option and press STO to select/store the option.
O If the plug-in pager is removed from the handphone's battery compartment, the pager shall be powered do~m automatically O During power up an internal power up self-test of the pager will be done. If the test is passed, a good key chirp will sound and a message will be shown for 5 seconds. The phone will quit Menu mode automatically.
O There is also a short-cut to turn on the plug-in pager when there is any pending unre~d message(s). Please refer to the section on UNRE~Il) ~ESSAGES.

O During power off, the following message will be sllown for 2 seconds before quitting the Menu Mode altogether. The ACC icon disappears indicating the plug-in is off SUBSTITUTE SHEET (RULE 26) WO 97/03534 PCT/S~ 0 0 C 6 I ~ _~
~~ =~
l l ~_ . _~
. __ ~ __ STANDBY
O After a s~lcc~fill power up, the display will show a Real-Time-Clock and the ACC
icon will be turn on.
O The Real-Time-Clock display stays even if the pager is turned o~. However, the RTC
display will be temporarily ~upl)lessed under the following circllm~t~nces:
1. Menu Mode 2. Alpha Mode 3. Retrieving Phone Memory 4. Mailbox Mode 5. Phone is operating on voice channel 6. Displaying a pop-up m~e~ge in line 1 DEVICE STATUS

RECEIT~ING A PAGE
O There are 4 di~e~ L types of audio/visual alert:
1. LCD display 2. LED on the top facia of the phone 3. Paging Tone (user selectable on/of~) 4. Paging Beeps in the Earpiece.
O LCD DISPLA Y

SUBSTITUTE SHEET (RULE 2~) WO 97/03534 PCT/S~' . ~

- Only applicable if thc phone is powered on ~,vhen the page is received or the.Wake-lJp Option has been enabled.
- - The paging message will be displayed for IS seconds unless RCL is pressed. Pressing this button will reset the 15 seconds. However, ~JNREAD icon will always stay ~n.
SOURC~ POP-UP MSG MORE SOURCE NO MORE

~" ~j I t ~'t ''~

........ , UNREA~ ICON UNREAI~ ICON
- Source identifier (prèferably in inverse video) indicates one of the 4 possible RIC.
- Pop-Up message: NEW PAGE or DUP P~GE (if message is identical to a previous one) - More indicator (~)(preferably in inverse video) indicates a long message (more than 10 characters). Press RCL the number of times required to vie~4 the next 10 characters, and so on. When the end of the message is reached, press RCL sho~s the beginning again.indica~es the message has more character to the right ~ indicates the display has reached the end of this message O LED ON THE TOP FACIA OF THE PHONE
- Slow blinl~ing for 15 seconds unless cancelled by user. Usef can easily distinguish it from the case of incoming phone call.
- Cannot be disabled by user option.

- Sounds for 15 seconds or cancelled by user explicitly.
- May be disabled via Alert Option.
- Even if it is enabled, it can be su~.pre.ssed when:
1. The phone is operating in voice channel.
2. The phone is ringing.
O PAGIA'G BEEPS IN THE EARPIECE:
- Only works when the phone is operallng in voice channel.
- Cannot be disabled by user op~ion.

SUBSTITUTE SHE~T (RU' E 26) WO 97/03534 PCT/S~.,5~ C~

CANC~ AN ~;RT
O While the audio/visual alert is on-going, press ~ny key once to stop the alert (exception POWER, END and volume keys).
0 Paging tone and blin~ing LED will be cleared, but the message shown in display will remain till the end of the 15 seconds R~TRrJ~T~ A A~SSAGE;
O Press IVIAIL BOX (i~) key lo enter into Mailbox mode. The most recent message (buffer #l) ~ill be displayed by default. If the received buffer is empty, "NO ~SG" message will be shown.
SOURCE MORE CHAR. MORE MSG
A~
,~..

O Source identifler (preferably in inverse video) indicates one of the 4 possible ~IC.
O Pop-Up message shows the time stamp.
O More character indicator (~) (preferably in inverse video) indicates a long message. Press RCL to view the rest.
O More message indicator (~) (preferably in inverse video) indicates that there are more, messages (both read or unread) in the received buffer. The indicator will not light when displaying the last message. Press ~ key to scroll down the buffer. "NO ~ORE" message will be displayed when end of the buffer is reached.
O If the message is a duplicated one, a blinlcing block cursor ( . ) wlll appear in the left most position of line 2.

~N/TIATF~A ~A~ A~
O If the currently retrieved message is a telephone number, the user may just press SEND to initiate a callbac~ Upon completion of the call (successful or not), the phone will clui~
Mailbox mode.

SUBSTITUTE SHEET (RULE 20 O The unit assumes that Ihe displayed messa~e must be a numeric string It is up to the user to determine if the numeric message is a valid ~clephone number.
-O~;K / ~n~rl ~ ' A MF,S.SA~;F
0 Each message in the received buffer can be locked or unlocked individually.
O Only locl~ed messages and unread messages will be retained when the pager is tumed off.
0 Press STO as a toggle switch to lock and unlock the currently displayed message.
0 Locked messages Will appear in inverse video.

~Er.~TF: M~SS~GE~S) O Press and hold CLR for I second to clear the currently displayed messaoe (which must not be locked). A good key chirp will sound as a confirm tone. Lf the message is locked~ a bad key chirp sounds.
O While sta~,~ing at tlle end of the received buffer, press and hold CLR for I second to clear all read and unlocked messages. A confinmation message C~EAR ALL? Will be sb.owll for 10 seconds. Press C~LR once to confirm. Press an~ other l;ey or wait for message to disappear to abort the operation.
O After the dele~e o?eration, the phone will quit Mailbo~; n.~de.

~/NRF,~ ~rF,S.SA~F:(.S) O If the handphone is turned off while there is any unr-ad paging message(s), a reminder message "NE~ PAGE" will be sho~n upon the po~:er up of the handphone.
O In order to allow the user to retrieve the unread paging message(s) quickly if the pager ha~
not been tumed on yet, MAIL BOX (1~1) button can be used.
O Pressing MAIL BOX (1~3) once will:
1. Turn o~rl the plug-in pager.
2. Enter into mailbox mode.

BATTFRY r ~VF.I .~ I f)W PsATTF:RY A~ F~RT
0 Share with the handpholle.

SUBSTITUTE SHEET (RULE 26'~

WO 97/03534 PCT/S(,~

4. Customiz~tion . ==

All the senings described in this chapter are stored in the non-vol2tile memory oF the pager The data ~ill be retained when the plug-in~pager is tumed of~. -S~JTING ~A~l~P QPTION
O Enter Menu mode and go to Sub-Menu 19.2 of the Accessory l~Ienu.
M:~NU: 19.2 FUNCTION: WAKE UP OPTION
DISPLAY 1: WAICE-UP Press STO
DISPLAY 2: >{current_option}
OPTIONS: E~IABLE
DISABLE ~ de.~ ult O Use ~ or ~ button view the other option and press STO to selsct/sto~re the option.

.S~77~ , A~ ~RT OPT~ )N
O Enter Menu mode and go to Sub-Menu 19.3 of the Accessor~ Ienu.
2~ENU: l 9 . 3 FUNCTION: PAGING ALERT OPTION
DISPLAY 1: ALERT OPT Press STO .
DISPLAY 2: >{current_option} J
OPTIONS: PAGE TONE ~ derault S~LENT
O Use ~ or ~ button view the other option and press STO to select/store the option.

SF7TlJ~r TH~ C'~.O('IC
O Enter Menu mode and go to Sub-Menu 19.4 of the Accessor~ ~enu.
~ENU: 1 9.4 FUNCTION: SET REAL TIME CLOCK

SUBSTITUTE SHEET (RULE ~6 WO 97/03534 PCT/S~5.'~C~C6 DISPLAY 1: . SET CLOCK Press STO
DISPLAY 2: HH: MM J
CURSOR: ~
O A blinking curs~r appears on the 10's hour digit. Press any digi- key and the cursor will move to the right.
O May use A or v button to rnove the cursor position. Press STO to store the setting or CLR to abort and quit.

~ETTING T~ P,4GING TON~: VOI,~JME
O The volume of the paging tone is identical to that of the ha~dphone's ringing tone, which can be selected via Menu 10.

~ TO OF D O CUI~NT ---SUBSTITUTE S~!EET (RULE 2~1 WO 97/03534 PCT/SG,.~/~COC~

APPENDIX B

WO 97/03534 PCT/SG96/OO(U)6 1. Introduction This document attempts to describe the objective feab~res and ergonomics of the optional plug-in answering machine for the 2nd Generation AMPS/TACS handphone from the end user point of ulew.
It is envisioned that the solid-state plug-ir answering machine will be house~ in the ban-ry compartment: Other than incorporating the control into the keypad and display panel of the handphone, no extra switch and display will be provided by the plug-in device. This document includes descriptions on the host handphone ~CD display, usage of the keys, user selectable options and mode of operations. However, it will not cover user requirements on mechanical and perfo~nance parameters (such as audio levels, battery life etc.).
Listed below is the summary of the features:
O Menu-Driven Power On/Off O 90 Seconds Playback/Record Capacity O Personalized Outgoing Message (OGM~ Recording (15 seconds max) O Factory Pre-recorded OGM (non-recoverable) O Security Code for Personalized OGM Recording O OGM Playback O Incoming Message (~CI~) Recording for S Messages (each 15 seconds max) O Automatic Disable When Memory Full O Unread Message Indication 0 Allow User To Pick-Up Call While Recording ICM
O CLI-Tagged Recorded Voice Message Allows One-Touch Callback (Only for TACS systems supporting CLI functions) SUBSTITUTE SHEET (RULE 26 WO 97/03534 PCT/S~,, 5.~. ~ ~ ~

2. Fezltures :Review POWF.R ON/OFF
O The plug-in answering maehine ean be turned on or of~ via the handphone's Aeeessory Menu.
O When the handphone is himed off, the answering maehine will also be turned off automatieally (only unrçad and loGked voice messages are retained).
0 When the handphone is tumed on, the answering machine will still remain power of~ by default. This feature avoids the aeeidental use of the maehine when it is not inten~led to.
O Onee tumed on, the answering fi~netion of the machine is not affeeted by neither imposing aeeess eontrol nor aetivating keyguard features of he handphone O A shorteut is also available. When there is any unread messages and the answering maehine is turned of~, the user may use MAIL BOX (1~1) key to tum on the machine and retrieve the message.

Pl A YB~C~/RECORD C~PAC17Y
O 90 seconds in total (Recording chip may be cascaded if required in the future) PFR.Sf~NA~ n (7~1r(~0~N(-,~,.~.'A(-F:
0 All units are shipped with a non-recoverabie factory pre-recorded OGM; which the user may override with his personalized OGM later.
0 15 seconds max O User aceess to OGM reeording is eontrolled by the lock eode of the phone.
(The loek code is the same as th- one used for aceess eontrol of the handphone.)O The reco~ded OGM ean be previewed.

IN~>A/IIN~ S.~AGF~'; .
O The remaining 75 seconds of the built-in voice recording capacity is hard-partitioned into 5 slots with 15 seconds duration eaeh.
O Each of the voice messages is also tagged with CL I which will also be displayed when the voice message buffer is being scrolled through (TACS system with CLI support is required) SUBSTITUTE SHEET (RlJLE 26) WO 97/03534 PCT/SC,~

O When the voice message slots is fi~ll, the answering machine will not answer any inComjng calls at all.

MON7T~R rN(,' ~MTN(7r MF,~.~A~;F,~;
O The user may choose (option accessed via menu mode) to monitor all the incoming calls even if the answering m~chin~ is enabled.
0 This feature makes the plug-in device functionally compatible to the majority of the conventional desktop answering machines, where the user can monitor calls from the speaker.

~l.SrR rNTr,RRT~PTAAÇ~WF,R~N~J PR~(~F.SS
0 The user may interrupt the machine's automatic answering process at any time after the phone is ringing.
0 It does not matter whether or not the answering machine has already picked up the call, playing back the OGM or recording the caller's ICM.
0 Once the user presses SEND, any of the above on-going activities will be aborted. If there is any incomplete recorded message, it will be discarded.

~~NRr,AnA~ A~'rF INnl(',AT~t~N
O An unread icon will always be turned on until the all the voice messages are read at least once. (This icon is dedicated to the plug-in-answering machine and it is not utilised by the handphone) O While the received voice message slots are being scrolled through, the ~READ icon will be tumed on only if the currently playback message is unread.

~,O(',KrN~r / ~fiN~,~(',KrN(r MF,~.';;A--;F~
O Messages in the voice message slots can be locked or unlocked individually.
O Locked messages cannot be deleted unless they have been unlocked.

vfORY RFTF,NTI )N
O Only unrcad messages and locked messages in the received buffer are retained when the answering machine (or handphone) is turned off. This helps to avoid out-dated/unnecessary SUBSTITUTE SHEET (RULE 26) WO 97103534 PCT/S~ I C _ 6 messages of occupying valuable voice memory, which may prevent the machine from answering new calls. - -SU8STITUTE SHEET (RULE 26) CA 022265l3 l998-0l-07 3. M~n-M~clline Interr~cc Since the plug-in pager is sharing the display (LCD panel and the top LED) and the }ceypad with the handphone, the ergonomics of the paoer are designed to be as consistent as possible to that of the handphone.
Many of the icons and buttons are shared between the handphone and the pager. However, there are certain buttons and icons dedicated for the plug-in pager only:
Icon Button ACC MAIL BOX (1~31) UNREAD

(P.S. Refer to the M~JID document of the handphone for more details) The Mail Box Mode (thru' which the user may access paging messages) will be cancelled when there is an incoming phone call. To make incoming call to have highest priority is consistent to the basic ergonomics of the handphone.

MF.NTJ (~PF.R~T~t~Ar O Power on/off and configuration of the plug-in pager are accomplished through the Accessory Menu (Menu ~l9). (Please refer Handphone MUID doc for details on Menu mode) O The phone detects the presence of the device, and displays it as follows:
~ MENU TITLE MEN 'IU

DEVICE DETECTED MENU MODE
O Press STO to get into the sub-menu of the Accessory Menu. The structure of the sub-menu is depicted below:

SUBSTITUTE S~EET (RULE 26 WO 97/03534 PCT/SG~

O Press STO to get into the sub-menu of the Accessory Menu. The structure of the sub-menu is depicted below: -Acc. Menu (Menu 19) !!
" 1, ~1 .
Sub- Power Record OGMPlayback OGMMonitor Menu:(Menu 19 1) (Menu 19.2)~Menu 19 3)(Menu 19.4) POY~;~ ~N/OFF<~ S~rF-T~ST
0 Enter Menu mode and go to Power Sub-Menu 19,1.
~ENIJ: 19.1 FUNCTION: AI'ISWERING MACE~NE ON/OFF
DISPLAY 1: POWER Press STO
DISPLAY 2: >{current_option) J
OPTIONS: ON
OFF ~ default O Use ~ or ~ button view the other option and press STO to select/store the option.
0 If the plug-in answering machine is removed from the handphone's battery compartment, the device should be powered down automatically O During power up, an internal self-test of the answering machine will be done. If the test is passed, a good key cbirp will sound and a message will be shown for 5 seconds. The phone will quit Menu mode automatically.
O There is also a short cut to turn on the answenng machine when there is any pending unread message(s), Please refer to the section on ~mrR~ 4L) A~ A(~

O During power off, the following message will be shown for 2 seconds beforc quitling tlle..
Menu Mode altogether. The ACC icon disappears indicating the plug-in is off.

SUBSTITUTE SHEET (RULE 26) WO 97/03534 PCT/S~, 5 '~ ~ ~ ~ 6 STA~IDBY
O After a successful power up, the ACC icon will be turned on.
(P.S. Since there is no time stamping of voice messages, there will not be an~ built-in Real-Time-Clock.) A~WF.R~N(~; A ~'A~ ~
O With the plug-in device in place, the audio/visual indications of receiving incoming cails are identical to those of the basic handphone.
0 GOING Orr-~OOK
- If the voice message slots are not full, the answering machine will answer the call ~.ithin a pre-defined (factory/dealer programmable) number of rings.
- If the. voice message slots are full, the machine will not answer the call. After the elapsed of the pre-defined number of rings, a message will be displayed as follows.
POP-UP MSG POP-UP MSG

CLI DISPLAY CU DISPLAY
Voice Mecsage .Slotc Not Full Voice Mlo.c~ag~ ~SIot~ Full O PI AYING B~C~' 7HE OGM
- Monitoring of the on-going OGM playback is not ailowed - ~ message will be displayed as follows:

SUBSTITlJTE SHEET (RULE 26 WO 97/03534 PCT/SC, 5.'. ~ ~ C

POP-UP MSG

CLI DISPLAY

- One second after the completion of the OGM playback, the caller will be given a l-second long start tone.
- Recording of ICM will commenee immediately after the end of the start tone.
- Monitoring of the ICM is allowed as an option. The audio out will be c~ nnecte~l to the earpiece or to the speaker (if the hands-free car kit is used).
- At the 12th second, a short (say, 800msec) warning tone sounds to alert the caller to finish his/her message.
- At the 15th second, the recording stops and a continuous warning tone sounds to inform the caller of the end of the recording session. The UNREAD icon will then be turned on.
- The answering m~ehine will initiate an on-hook after 1 second.
- While the message is being recorded, the rem~ining number of voice message slots (including the current message) will be shown.
- If there is no voice message slot available, the h~n-lphl-ne will display a remintler message "ANS FULL" upon the power up of the h~n~lph~me. It serves remind the user that the answering m~e.lline Will not answer any further calls unless old message(s) are removed.

RECORDING 12th sec 15th sec ON-HOOK
, ~
Is Is Is OG~ START START P~ ND
ENDS TONE REC WARN'G REC
TONE TONE

POP-UP MSG NO. OF SLOTS LEFT

_I

CLI DISPLAY

SU3STITUTE SHEET (RULE 26) R~,'ORl~NG OF O<'A~
O A~ccessed via the sub-menu under the Accessory Menu to record personalized OGM.
0 The recording is controlled by the lock code.
O The recording is guided by start tone and end tone sounded from the buzzer.

RF:TRIF~ A A~ A(~
O Press MAIL BOX (~1) key to enter into Mailbox mode. The most recent message (slot #l) will be played back by default. If the message slots are empty, ' NO ~ISG" message will be shown.
POP-UP MSG. MSG NO. MORE MSC't UNREAD MSG MAILBOX ICON
O Pop-Up message shows a standard message.
O More message indicator (~) (preferably in inverse video) indicates that there are more messages (both read or unread) in the message slots. The indicator will not light when displaying the last message. Press ~ key to "skip" to other messages (i.e. scrolling down the buffer). "NO MORE" message will be displayed when end of the slots is reached.
O CLI display depends on the support of the TACS system.
O The ~READ message icon will disappear when the voice message has been played back.
O After the message number ~and CLI) has been displayed for 2 seconds, a short confirmation tone will sound. This will be followed by the playback of the message.
O When the playback of the current message is completed, the audio output will be muted. The machine will display the next available message (read or unread).
O The playback sequence will continue in a similiar manner until the end of the message slots is reached. "NO ~IORE ~fSG ' message will be displayed.
O During the playback of any message, the user may use ~ or 1~ key to skip to the next message or re-start the current message respectively.

SUBSTITUTE SHEET (RULE 26 . = = .--WO 97/03534 PCT/SG95.'~ C ~

INITJ~I TF~ ~f cALr ~ ~ (FOR ~r~r o~r Y~
O If the currently retrieved message contains a CLI, the user may just press SEND to initiate a callback.
O When SEND is.pressed, it does not matter whether the playback of the message has begun or not. The playback will be aborted before the call is initiated.
O Upon completion of the call (successful or not), the phone will quit Mailbox mode r,(~(~ / ONr,(~(~K A MF,S.SA(-F
O Each message in the receiYed message slots can be locked or unlocked individually.
O Only locked messages and unread messages will be retained when the answering machine (or the handphone) is bumed o~.
O Press STO as a toggle switch to lock and unlock the currently displayed message O Locked messages will appear in inverse video as follo~vs.
MSG#~ HAS BEEN LOCKED

.~ ~ ~ I

# ~ ~~
MAILBOX ICON

Df~r.~;TE A/fF.~SACrE(~S) O Only unlocked or read voice messages can be deleted.
O Press and hold CLR for I second to clear the currently displayed (and/or played back) message. A good key chirp will sound as a confirrnation tone.
O While staying at the end of the message slots (where ''NO MORE MSG message is being displayed), press and hold CLR for I second to clear all the voice messages. A confirmation messa8e "CLEAR ALL?-' will be shown for IO seconds. Press CLR once to confirm. Press any other key or waie for message to disappear to abort the operation.
O After the delete operation has been completed, tbe phone quits Mailbox mode ~rNRFAn ~IF.S.SA(~F:f.S~) SUBSTITUTE SHEET ~RULE 26) -WO 97/03534 PCT/S~,,.~.'.~-~~

O If the handphone (together with the answering machine) is turned off whil~ there is ahy unread message(s), a reminder message NEW VOICE ~ISG Will be shown upon the power up of the h~n~rhone (P.S. The answering machine is still powered off.) O In order to allow the user to retrieve the unread message(s) quickly, MAIL BOX (1~31) button can be used.
O Pressing MAIL BOX (1~3) oncewill:
1. Turn on the answering machine.
2. Enter into mailbox mode.

r~ATTF:RY r,F,YF.r~ ~ r,(~w r~ATTFsRY Ar,F,RT
O Share with the han~phone.

SUBSTITUTE S~EE i ~RULE 26) PCT/S~,~ 5~1! D ~ 6 4. Cllstomization All the settings described in this chapter are stored in the non-volatile memory of the answering machine The data w~ll be retained when the device is tumed off.

RE;C'ORDI~G Q~ I~(JMESSA~rE fO(rAa7 0 Enter Menu mode and go to Sub-Menu 19.2 of the Accessory Menu O ~he access of Menu 19 2 is controlled by the lock code MENU: 19.2 FUNCTION: RECORD OUTGOING MESSAGE
DISPLAy 1: RECORD OGM Press STO
DISPLAY 2: ENTEE~ CODE _l DISPLAY 3: * ~ * * Press {;ock_code} STO
DISPLAY 4: START AFTER
BEEP
(Récording ) - -- Press STO when completed DISPLAY 5: REC DONE ~
Exit back to Menu 19 after 3 seconds O The buzzer will sound briefly after the correct lock code has been entered The recording will commence immediately after the end of the tone O The recording of OGM ends when either the user presses STO again, or the lS s~conds interval has elapsed In the l;~ter case, the End Recordmg Tone will sound for 3 seconds P~AYIN~-B~K QUTGOIN~; ~vf~55,4~E ~OGrAf~ ~ -O Enter Menu mode and go to Sub-Menu 19 3 of the Accessory Menu, ~vlENU: l9-3 F~CTION PLAYBACK O~TGO~G MESSAGE
D~SPLAY l P'BACK OGM Press STO
DISPLAY 2 PLAY~G, ~ - -SU~STITUTE SHEET (RUL~ 26) (Playing back ...) [Press STO to abort any time]
~Exit back to Menu 19) O When STO is pressed, a beep wil.l sound in the e rpiece (assuming there is no car kit) briefly after a 2-second delay. The playback will commence immediately af'ter the end of the tone (P.S. The delay is to allow the user to position the handphone onto ~is e~r.) ;TT~'rI A~ ONJTO~ OPTI~
0 Enter Menu mode and go to Sub-Menu 19.4 of the Accessory Menu.
~U: 19.4 FUNCT~ON: MONl~OR OPTION
DrSPLAY 1: MONrrOR Press STO
DISPLAY 2: ~current_option} J
OPTIONS: ENABLE ~ default DISABLE
O Use A or ~ button view the other option and press STO to select/store the option.

--LND OF DOCUME~T--SUBSTITUTE SHEET (RULE 261 WO 97/03~34 PCT/SI,,.~/~,O~C6 APPENDIX C

CA 02226~l3 l998-0l-07 WO 97tO3534 PCTlSG96/00006 1. INT~ODUCTrON

~ Elite bus provides a b:-sic means of point-to-point communications between the followings:
I. Handset ' > Lab Tester O
Il. Handset < -- Factory Tester ~1 111. Handset < > Radio Servicing Soffivare/ Field Programme- ~3 IV. Handset '~ -- Plug-in Pager O
V. Handset < ~ Plug-in Answering l~lachine ~
Each of the above device is assigned an device identifcation code (see Section 2 for details), which needs to be sent in every commands and responses.
~ There are 3 categories of messages dcfined:
- Command Message - Response Message - Status Message Each of the abovc device O to ~3 may issue and respond 2 set of commands. Section 5, 6 and 7 indicates wllicll messaoes are applicable to each device. The Lab Tester is an exception where all defined messages are applicable.
~ All messages are binary-based (~ith the exception of monitor status message which its data is ASCII-based for eas~ monitoring). Each message ~ord comprises of one or more bytes. All messages are single~ ord SU3STITUTE SHEET (RULE 26) PCT/SG~5.'~ X ~ 6 2. I~l~VICE IDENTIC~TTON COl)E

The parameters field in the table refers to any additional data other than Device Idenrication Code that needs to be sent in the message The Device Identicotion Code is used by the handset to deterrnine if the response is applicable.

~ Handset - No code is required Lab Tester - 0xB0 (derived from 0~A I XOR 0X I I ) Factory Tester - 0xA3 (derived from 0xB2 XOR 0X I I ) Radio Servicing Software - 0~;D2 (deriv-d from 0xC3 XOR 0XI 1) Plug-ln Pager - 0xC5 (derived from 0xD4 XOR 0xl 1) Plug-ln Ans~ering - 0xF4 (derived from OxES XOR 0xl l ) I\~acl, ine WO 97/03534 PCT/SC~5/1 3. PHYSICAI, LAY~ R SPECIFICATIONS

Type: Ful I Duple~c Asynchronous Point-to-Point linlc Speed: 9600 bit per sec Data Bits: 8 Parity: None Stop bits:

CA 02226~13 1998-01-07 WO 97/03534 PCT/SG~G,li --~

4. I~IESSAGE STRUCT~ & FLQW CONTROL

~ General Message Word Structure:
Message From Handset:

li STX jj TYPE jj DATAl j~ DATA2 jj jj ETX j¦ LRC j¦
Il 11 11 11 11 . . ._ . Il 11 ll Message To Handset:

Il 11 . " " " - - - - " " . Il ¦¦ STX ¦¦ TYPE ¦¦ DIC ¦¦ DATAl ¦¦ ¦¦ ETX ¦¦ LRC ll Il llll ll 1l ..... Il 11 ll STX - Start of Transmission (0x02).
TYPE - Message type ~leld.
L)IC - Device Identification Code as defmed in Section 2.
DATA - (See description of individual messages).
ETX - End of Transmission (0-x03).
LRC - Longitudinal Redundancy Checl;. LRC is computed by XOR all the characters from TYPE field up to ETX character inclusively. See the following paragraphs: Sentinel(s) is not included in the calculation.
Original special characters (not - quoted" characters) are used in the calculation.

Flow Control: ACK (0x06) / NACK (0x l S) protocol:
SENDER.
- Should not continue to send additional message word until the its last cent message has been acknowledged ~ie ACK received). TIMEOUT= I second - Sender should retry UP TO 3 T~MES when there is no response (ACK or NACK) or NACK'd. The time interval between retries should be I to 2 second .
RECEIVER:
- Message word with r.un-zero calaculated LRC should be NACK'd; otherwise, the incoming message should be ACK'd ASAP.

I'rovisious ~or Full Duple:c Operation:
- Special Characters:
STX - 0x02 ETX - 0x03 SENT~NEL - 0x88 ACK - 0x06 NACK - 0:;15 CA 02226~13 1998-01-07 - In full duplex operation, it is possible that any of the above special characters may be embedded into an on-going incoming message word (as well as the LRC). These flow control characters is meant for a previously sent message in the opposite direction.
r - When a party needs to respond with a ACK or NACK while it is also sending its own message, it should send ACK or NACK immediately (the ACK/NACK character shall not affect the LRC calculation of the message b_ing sent). The other partyshould recognize 0x06 or 0x l 5 as flow control characters (not part of the message).
- A SENTINEL (0x88) is defined to notice the receiving party that the byte that follows immediately has been be "quoted" (XOR with 0xl 1) before sending out. For example, Original ~,Vord:
I
02 ll 20 ll 31 ll 06 ¦¦ 03 ¦¦ LRC

LRC = 0:;00 XOR 0x20 XOR 0:;31 XOR 0x06 XCR 0x03 0~14 Word To Be Sent:

jj 02 jj 20 jj 31 jj 88 jj 17 jj G3 jj LRC jj Il 11 1111 ~1 11 11 !1 Sentinel 0x05 XOR
Oxll LRC = 0xl 4 - The transmitted LRC field is calculated with the "pre-quoted" character (i.e. 0x06 in tlle above example). Similiarly, the received LRC should be calculated with "recovered" character.

5. COMlVlAND MESSAGE
At link level, each c~a.. ~ l message will be ACK or NACK by the l~Ct;iVillg party. For some ~ ",.~.. 1.c, the req.. e.st~-d op~r~tir~n of the co.... ~ will be l~ n~ d by a separate response mP~
~ Listed below is the ~Ulllllldl~/ all the defined c.. ..~n.1~. The p~ , field in the table refers to any ~ 1iti~n~1 data other than Device Identicaffon Code that needs to be sent in the m~c~ The Device Idenffcation Code is used by the handset to ~ r~ ~--;--~ if the co~ 1 is applicable.
.

TYPE ~ r." ~ (if anv) ResPonse Direction ACCESSOPIES - PLUG-INANSWERING MACHINE (Available dilring Normal Mode Only) 0x00t Turn offPlug-in Device NONE Ans Mach Status O ~9 >>6 (for Ans Mach or Pager) (w/ Ready indication) In order to turn on the cul~WCl il~g machine, a I Oms low pulse needs to be gPr Prf~tPfl 0x50 Play Back Slot No (0 to 5) Ans Mach Status Hset o,~9~>la (w/ Slot no. indication) Ans Mach Status (w/ EOM indication) 0x5 I Play Back Current NONE Ans Mach Status Hset O,~9>>O
Slot (w/ Slot no. indication) Ans Mach Status (w/ EOM indication) 0x52 Record Slot No (O to 5) Ans Mach Status Hset,O,~>>o (w/ Slot no. indication) Ans Mach Status (w/ Overflow indication) 0xS3 Record Current NONE Ans Mach Status Hset,O,~>>O
Slot (w/ Slot no. indication) Ans Mach Status (w/ Overflow indication) 0xS4 Stop PlayBack/Record NONE AnsMach Status Hset,0,~9>>0 (w/ Ready indication) t During recording, Stop PlayBack/Record Cnmm:~n~l should be issued to the device before the 15 second time slot elapsed. Otherwise, the ~1 ~. g machine will issue an Overfiow Response and the recording will be stopped ' 'y.

SUBSTITUTE SHEET (RULE 26) -ACCESSORIES - PLUC-IN PACEI~ (Availabl~ dunng Normal Mo~l~ OnlyJ
OxOO Tum Off Plug-ln Device NONE Pager Slatus Hse~,O,0>>
(for Ans Maeh or Pager) (w/ Ready indication) t In order lo turn on the pager, a low pulse (SOO usee minimum) needs lo be generated.
r Ox60 Program Decoder EEPROM Array-No. Pager Status O0~3>~0 AddresslData (5 bytes)(~v/ Ready indicalion~
Ox61 Read Time NONECurrent Time (hh:mm:ss) HsetO0~3~>~
Ox62 Set Time Time (hh:mm:ss)Pager Status HsetO00~>~
(~vt Ready indication) Ox63 Handset Power Handset PWR ONIOFF Pager Status HsetO0~3>>0 Wake-up Enable/Disable(w/ Ready indication) Ox64 Any Unread Page NONE Pager Stalus 11se~000>>0 (returns no. of unread msg) ox65 Read Page [Latest I Current I Prevl Page Reeord HsetO0~>>~
Ox66 Delete Page lPrev ! All ]Pager Status 11setO0~3>>0 (~/ Ready h~dlcatio!~) Ox67 Lock Prevlous Pagc NONE l'ager Status llsetO0~>>~
(~l Ready indlcation) Ox68 Unlock Page NO1~iEPager Status llsetO0~>~0 (~/ Ready indlcatlon) Ox69 Load Decoder EEPROM Array NoEEPROM Array No. ~>>00~3 AddresslData (5 byles) WO 97/03534 PCT/S~._5.

6. RESPONSE MESSAGE
Listed below is the ~UIllllldly all the defined ~ . The 1~ field in the table refers to any a~l-litit n~l data other than Device Identication Code that needs to be sent in the message.
The Device Identication Code is used by the handset to .~ if the ~ ull~e is applicable.
lYPE Res~onse r:lr ~ (if anv) Corr. C I Direction GENERAL - Avail~k in aU Modcs 0x80 Cnmm~n~l Status OK or INVALID Any ~.. ,.. 1~ Hset>>O O 0 O

MONITORING - Availoblc during Monitor Mode Only 0x81 ChannelStatus SeeBelow MonitorMode Hset>>OO
(Not T , ~ ' ~ Yet. Until further notice) AIR-lNTERFACE State, Channel Number, SAT, Transmit Power Level and total number of BCH errors since last r~ mm ~n~l Response sent whenever any of the above p~ changes.
TESTINC - LOAD (Availabk during Tcst Mode Only) 0x82 PSIM Data See Section 8 Load PSIM Hset >>O l9 0x83 NAM Data See Section 8 Load NAM Hset >>O O O
0x84 UPO Data See Section 8 Load UPO Hset >>O O O
0x85 E~ ,y Numbers See Section 8 Load L ~ ~ Numbers Hset >>O O O
0x86 Tuning Values See below Load All Tuning Hset >>O O O
Values All attenuator values (Al-A7) in APROC
PWM values c~ v...L..g to AMPS/TACS PL0-7 0x87 EEPROM Data Data Bytes Read EEPROM Hset >>O O
TESTING - DPROC & Others ~Available di~ring Test Mode Only) 0x89 DPROC Status Status Reg Read DPROC Hset >>O 1910 Status Reg ACCESSORlES - PLUG-INANSWERING MACHINE (Available drlring Normal Modc Only) 0x8A Ans Mach Status t Status Byte See Below ~a >>Hset O O
t T...1;, ~1;....~
Power OFF Plug-In Power (OFF) Ready Plug-~ Power (ON) OR
Stop PlayBack/Record OR
Device Internal Reset Slot No. Play Back OR
Play Back Current Slot OR
Record OR

SUBSTiTUTE SHEET (RULE 26) WO 97/03S34 PCT/S~_ 5.'6 - _ 3 Reeord Current Slot EOM Play Back & Voiee Msg Ended.
Overflo~ Reeord & Time Slol Exeeeded ACCESSOR~ES - P~UG-I~ PAGER (Ava;/able during /Vornua/ Modc OnlyJ
0x8B Pager Status t- Status Byte See Below O>~HsetO0~3 " Indieations POWER OFF Plug-ln Power (OFP) READY Plug-ln Power (ON) OR
Program Deeoder OR
Set Time Deviee Inlernal Reset U~READ MSG Any Unread Message 0,x8C Unread Pages i~:o. of Unread Pages Any Unread Pages emd l~>>HsetOe~O
0x8D Page Reeord Data & Ctrl Bits Read Page ~>>HsetO0~
0.x8E .Currcnt Time hh:mm Read Time cornmand O>>HsetO00 ox8r: Dccoder Data EEPROI~,f Array No Load Decoder command ~>>O0 Address/Dala (5 bylcs) WO 97/03534 PCT/S~,.. 'i/~ _ _ ~

7. STA~US MESSAGE
Status messages are sent spontaneously when a detenninant condition occurs.

~ Listed below is the ~ullllll~y all the defined le~ul-ses. The parameters field in the table refers to any lition~l data other than Device Identication Code that needs to be sent in the message. The Device Identication Code is used by the handset to dete}mine if the status is applicable.

:~Y~ Status M~ r ~ if any) Condition Direction MONITORINC - Available during Monitor Mode Only 0xA0 Channel Status See Below Any Parameter Hset >> O ~9 Changes Value (Not T ~ ' ' Yet. Until further notice) Same as Type 0x80. r~ include AIR-INTERFACE State, Channel Number, SAT, Transmit Power Level and total number of BCH errors since last r~mmq~

ACCESSORIES- PLUC-INPACER (Available duringNormal Mode Only) 0xAI Pager Alert Repeated Call indication Page Received O >>Hset O O
0xA2 Out Of Range NONE See Decoder 0 >>Hset O 0 Specs OxA4 RTC Tick Current Time (hh:mm) Every Minute O >>Hset O O
(unless Wake-Up-Handset command has been rcvd) Ox8B Pager Status Buffer l~ull All available msg slots O >>Hset O
are occupied.

SUBSTITUTE SHE~T (RULE 26~

WO 97103534 PCT/SG~

TURN OFF PLUG-IN 0x00 DEVICE
MESSAGE TYPE: COMMAND
DESCRIPTION: Turn off the plug-in devices (including the AnsweringMachine and the Pager). Note that the power control of the plug-in vibrator has not been defined yet.
MESSAGE FORMAT:

¦¦ STX ¦¦ O O ¦¦ ETX ¦¦ LRC
I' " " " '~

PARAMETERS: None EXPECTED RESPONSE: PAGER/ANS MACHrNE STATUS MESSAGE (0x8A) PLAYBACK 0x50 MESSAGE TYPE: COMMAND
DESCRIPTION: Direct the plug-in answering machine to playback at the selected slot once. The playback continues until either "Stop Playback/Record '~command is sent or the voice mail ends.
After the playback, the answering machine will advance to next slot (but it wil~ not wrap-around back to slot 0 if slot 5 is selected).
MESSAGE FORMAT:

¦¦ STX ¦¦ 5 0 ¦¦ SLOT ¦¦ ETX ¦¦ LRC
Il . " " " "

l'Al~AML'r~.R~
SLOT Select the slot number (0 to 5) of the voice message to playback .
EXPEC rED RESPONSE ANSWERING MACHINE STATUS MESSAGE (0Y8A) WO 97/03534 PCT/SG,~ 1~ J 6 PLAYBACK 0x51 CURRENT SLOT
MESSAGE TYPE: COMMAND
DESCR~PTION: Direct the plug-in answering machine to playback at the currently selected slot once. The playback continues until either "Stop Playback/Record "c- mm~n-l is sent or the voice mail ends. After the playback, the answering machine will advance to next slot (but it will not wrap-a}ound back to slot 0 if slot 5 is selected).
MESSAGE FORMAT:

li STX jj 51 jj ETX jj LRC i ~' . " "
PARAME~TERS: NONE
EXPECTED RESPONSE: ANSWERING MACE~NE STATUS MESSAGE (0x8A) ~ -.. ~ .. : .. , ............... , , - ;
RECORD 0x52 MESSAGE TYPE: COMMAND
DESCR~PTION: Direct the plug-in answering machine to record at the selected slot. The recording shall commence shortly (say, within 100ms) after the Ans-vering Machine sends a positive status message. The recording continues until either "Stop Playback/Record "command is sent or the voice mail time slot expires. After the recording, the answering machine will advance to next slot (but it will not wrap-around back to slot 0 if slot 5 is selected).
MESSAGE FORMAT:
, ~.,=
¦¦ STX ll 5 2 ¦¦ SLOT ¦¦ ETX ¦¦ LRC
I' " '' " ll _ 11 PARAMETERS: -SLOT ~ Select the slot number (0 to 5) of the voice message to record.
EXPECTED RESPONSE: ANSWERING MACHINE STATUS MESSAGE (0x8A) WO 97/03534 PCT/S~

RECORD 0xS3 CURRENT SLOT
MESSAGE TYPE: COMMAND
DESCRIPTION: Direct the plug-in answering machine to record at the ~;u~ / selected slot. The recording shall commenee shortly (say, within 100ms) after the Answering Machine sends a positive status message. The recording continues until either "Stop Playback/Record "cnmm~n-l is sent or the voice mail time slot expires. After the recording, the answering m~ ine will advance to next slot (but it will not wrap-around back to slot 0 if slot 5 is selected?.
MESSAGE FORMAT:

Il STX ¦¦ 5 3 ¦¦ ETX ¦¦
Il " " " ~1 PARAMETERS: NONE

EXPECTED RESPONSE: ANSWERING MACHINE STATUS MESSAGE (0x8A) STOP PLAYBACK/ 0x54 RECORD
MESSAGE TYPE: COMMAND
DESCRIPTION: Direct the plug-in answering machine to stop playing back or recording. The answering machine ~ ill advance to next slot (but it will not wrap-around back to slot 0 if slot 5 is selected) .
MESSAGE FORMAT:

¦¦ STX ¦¦ 5 4 ¦¦ ETX ¦¦ LRC ll PARAMETERS:NONE

EXPECTED RESPONSE: ANSWERING MACHINE STATUS MESSAGE (0x8A) WO 97/03534 PCT/S~.,5'~ -~6 PROGRAl\~l DECODER 0x60 MESSAGE TYPE: COMMAND
DESCRIPTION: Prograrn the eeprom a~ay that resided in the plug-in pager's POCSAG decoder PCFSOOlT. ('Ihere are 3 eeprom arrays of 38 bits each in the decoder, please refer to its specs for definition. Certainly bits in the comm~n(i may be ignored by the pager which will be defined later.) MESSAGE FORMAT:

i STX jj 60 jjARRAY # li Byte 1 jj jj Byte 5 jj ETX jj LRC j¦
bit39 bitO
PARAMETERS:
ARRAY~ Select one of the 3 eeprom arrays in the decoder.
0x00 - Array I, 0x0 1 - Array 2, 0x02 - Array 3 Bit 39, 38 Not used Bit 37 - 0 As per PCFSOOIT specs EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) READ TIME 0x61 MESSAGE TYPE: COMMAND
DESCRIPTION: Read the current time m~in~ined by the built-in real time clock in the plug-in pager.
MESSAGE FORMAT:

Il 11 " " ~1 ¦¦ STX ll 61 ¦¦ ETX ¦¦ LRC

PARAMETERS: NONE

EXPECTED RESPONSE: CURRENT TIME MESSAGE (0~;8E) WO 97/03534 PCT/S~G/I; D ~ C
5~

SET TIME Ox62 MESSAGE TYPE:COMMAND
DESCRIPTION: Set the current time of the built-in real time clock in the plug-in pager. Second will be set to zero.
MESSAGE FORMAT:

li STX jj 62 jj HOUR jj MINUTE jj ETX jj LRC i ~, 11 11 " . " " ,~
PARAMETERS:
HOUR 24-hour format (0 to 23). Ten's and one's digits are BCD-coded.
MINUTE 0 to 59. Ten's and one's digits are BCD-coded. For example, 11:32 pm will be represented as:

EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) WO 97/03~;34 PCT/S~.,5'J~C

HANDSET POVVER Ox63 MESSAGE TYPE: COMMA~
DESCRIPTION: Inform the pager of power status of the handset.
MESSAGE FORMAT:

¦j STX jj 6 3 jj PWR jj WAKBUP ii ETX li LRC i PARAMETERS:
PWR O - Handset is going to po~er down. Pager to suspend RTC Tick message (0~A4).
- Handset has been po~-ered up. Pager to resume RTC Tick message (0.~A4). Reset any WAICEUP
option in the previous 0x63 command.
WAKEUP Ignore this byte if PT;YR = I
0 - Do not wake up the h~ndset even if a valid page has been received.
- Wake up the handset ~ ia the serial bus if a valid page has been recei~ e~.

EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) ANY UNREAD PAGE Ox64 MESSAGE TYPE: COMMAND
DESCRIPTION: Interrogate the number of unread pages in it's page memory.
MESSAGE ~ORMAT:

¦j STX jj 6 ~ jj ETX ii LRC jj ~1 ., li " I ~

PARAMETERS: NONE
EXPECTED RESPONSE: PAGER STATUS MESSAGE (0:;8B) PCT/S~,g 5.'~ 6 READ PAGE Ox65 MESSAGE TYPE: COMMAND
DESCRIPTION: Request for a page record as in~ tecl (P.S. After sending ~e record, ~e pager should al~t~ ti~ y advance its internal pointer to ~e next record or null (if it's the last one)).
MESSAGE FORMAT:

Il " " " " ~1 ¦¦ STX ll 6 5 ¦¦ LOC ¦¦ ETX ¦¦ LRC
p 1l n n n PARAMETERS:
LOC 0x00 - Send the LATEST page OxOl - Send the CU~RENT page 0x04 - Send the PREVIOUS page EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) (indicating BUFFER IS EMPTY or END OF BUFFER), OR
PAGE RECORD MESSAGE (0x8C) DELETE PAGE Ox66 MESSAGE TYPE: COMMAND
DESCRIPTION: Request for a page record or all of them to be deleted from the pager's memory.
MESSAGE FORMAT:

Il " " " " ~1 ¦¦ STX ll 6 6 ¦¦ OPT 1¦ ETX ¦¦ LRC

PARAMETERS:
OPT 0x00 - Delete the PREVIOUS page onl~
0x0 1 - Delete all pages except those that are marked as unread or locked.
EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) LOCK PRE~7IOUS PAGE 0x67 MESSAGE TYPE: COMMAND
DESCRIPTION: Lock the previous page record. Locked page will not be deleted by the pager when it goes power down. Unlike "Read Page" c--mm:-n~1, the pager should not advance its internal page record pointer.
MESSAGE FORMAT:

li STX jj 6 7 jj ETX jj LRC i Il 1~ 11 11 11 PARAMETERS: NONE
EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) (with READY, EMPTY or END OF BUFFER indication) UNLOCK PAGE 0x68 MESSAGE TYPE: COMMAND
DESCRIPTION: Unlock the previous page record.
MESSAGE FORMAT:

Il " ., " ~1 ¦¦ STX ll 6 8 ¦¦ ETX ¦¦ LRC ll ll ll ll ll ll PARAMETERS: NONE
EXPECTED RESPONSE: PAGER STATUS MESSAGE (0x8B) (with READY, EMPTY or END OF BUFFER indication) WO 97/03534 PCT/SG35'~

PAGE ~T,~,~T 0~Al MESSAGE TYPE: SPONTANEOUS STATUS
DESCRIPTION: Sent when there is a valid page has been received.
MESSAGE FORMAT:

Il " 11 " 11 11 ~1 ¦¦ . STX ll Al ¦¦ DIC ¦¦ DUP ¦¦ BTX ¦¦ LRC ll Il 11 11 11 11 ~r ~1 PARAMETERS:
DUP 0x00 The latest page is not a Duplicated one 0x0 I The latest page is a Duplicated one.
(P.S. The pager shall replace the timer stamp of the old page with the new one, and place the page to the top of its buffer.) OUT OF RANGE 0xA2 MESSAGE TYPE: SPONTANEOUS STATUS
DESCRIPTION: Sent the paging receiver goes out of range or bacl; in range.
MESSAGE FORMAT:

i STX jj A2 jj DIC jj STATUS jj ETX jj LRC jj 11 " " " 11 PARAMETERS:
STATUS 0x0 1 Out-Of-Range OxOO In Ranve WO 97/03534 PCT/SG~5'W~~C

RTC TICK OxA4 MESSAGE TYPE: SPONTANEOUS STATUS
DESCRIPTION: Same as message 0x8E every minute unless "Handset Power" message with powe~ down indication has been ~eceived.

---END OF DOCUMENT--

Claims (26)

1. A battery-powered portable electronic device (1) including an interchangeable battery pack (2) fitted to a main unit of the device, characterised by an auxiliary functional unit (AFU) (10) contained within the battery pack and arranged to communicate data bidirectionally with circuits within the main unit of the device, the auxiliary functional unit (10) thereby performing the auxiliary function in conjunction with the said circuits within the main unit (1) of the device.

2. A device according to claim 1 in which the physical interface (3) between the battery pack (2) and the main unit (1) comprises a multiplicity of contact pins arranged in a linear array with a battery ground contact pin at one end of the array, a battery +ve contact pin at the other end of the array, and at least one data pin between the said battery contact pins and connected to the auxiliary functional unit.

3. A device according to claim 2 in which the interface (3) includes 2 data pins, one carrying data unidirectionally from the AFU to the main unit, and the other carrying data unidirectionally from the main unit to the AFU.

4. A device according to claim 1, 2 or 3 in which the main unit of the device includes a user input device (7) and is arranged to communicate control signals to the auxiliary functional unit (10) in response to a user input.

5. A device according to any one of the preceding claims in which the interface (3) for the battery pack includes a connection for the transmission of power from the main unit to the auxiliary functional unit (10).

6. A device according to any one of the preceding claims, in which in a standby mode of the device only the auxiliary functional unit (10) is powered, and the auxiliary functional unit is arranged subsequently to switch ON power to the main unit.

7. A device according to claim 6, in which the auxiliary functional unit (10) switches ON the main unit in response to a signal received from a source external to the device.

8. A device according to any one of the preceding claims, in which the device (1) is a cellular telephone.

9. A device according to claim 8, in which the auxiliary functional unit (10) isa pager.

10. A device according to claim 8, in which the auxiliary functional unit (10) is an answering machine.

11. A device according to claim 8, in which the auxiliary functional unit (10) is a vibrating silent alarm.

12. A device according to claim 8, in which the auxiliary functional unit (10) is a cordless phone.

13. An interchangeable battery pack (2) arranged to be fitted to the main unit of a portable electronic device, characterised by an auxiliary functional unit (10) contained within the battery pack and arranged to communicate data bidirectionally with circuits within the main unit of the device, the auxiliary functional unit thereby performing the auxiliary function in conjunction with the said circuits within the main unit of the device

14. A cellular telephone, characterised by a pager module powered independently of the primary telephony circuits of the telephone and arranged to wake-up the said telephony circuits when a paging signal is received.

15. A cellular telephone according to claim 14, in which the pager module is arranged to communicate caller line identification (CLI) data to the primary telephony circuits.

16. A cellular telephone according to claim 15, in which the primary telephony circuits are arranged to display to the user the CLI data received from the pager module.

17. A cellular telephone according to any one of claims 14 to 16 in which the primary telephony circuits are arranged to make a registration with the cellularnetwork automatically after powering-up in response to a paging signal.

18. A cellular telephone according to any one of the preceding claims, in which the pager is contained in an interchangeable battery pack fitted to the phone.

19. A cellular telephone according to any one of the preceding claims, in which the pager is arranged to communicate data bidirectionally with the primary telephonycircuits via the connection between the battery pack and the main unit of the telephone.

20. A method of operating a cellular telephone including placing the telephone in a standby mode to reduce power consumption, characterised in that in standby mode power to the primary telephony circuits is turned OFF and power to a pager module remains ON, and in that the pager module, on subsequently receiving a pager signal, switches ON power to the primary telephony circuits.

21. A method according to claim 20, in which the pager module receives caller line identification (CLI) data and communicates the said CLI data to the primarytelephony circuits.

22. A method according to claim 21, in which the primary telephony circuits display the CLI data received from the pager module.

23. A method according to any one of claims 20 to 22, in which the telephony circuits make a registration with the cellular network automatically after waking-up in response to a paging signal.

24. A method of operating a cellular telecommunications network characterised by transmitting a pager signal from the network to a cellular telephone, receiving the pager signal in a pager module in the cellular telephone while the primary telephony circuits of the cellular telephone are powered-down, switching ON power to the primary telephony circuits in response to the pager signal, and subsequently establishing a connection between the said primary telephony circuits and the network.

25. A method according to claim 24, further comprising:
receiving at the cellular network exchange a destination cellular telephone number from a call originator; and only when the destination cellular telephone is determined not to be registered with the cellular network then outputting from the network exchange a pager signal, and otherwise establishing a connection directly with the primary telephony circuits of the destination cellular telephone.

26. A method according to claim 25, in which the network exchange stores a record of destination numbers and corresponding pager numbers, and when the destination cellular telephone is determined to be not registered powered-down then retrieves the corresponding pager number for use in signalling the pager module.