Telephone terminal device having speech recognition unit

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2 ~ 4 T~LEPHONE TERMINAL D~VIC~ ~ HAVING SPEE~ ~ECOGNITION UNIT - ; -~.

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BACKGR5~EI~Z~ INVENTIO~. S This invention relates to the telephone terminal -~ device wi~h a funct~on ~o per~orm ~he predetermined operation corresponding to spee~h signal~ by recognizing the apeech 3ignal~ from telephone trangmitter5.

AS the telephone termina1 device of th~g typ~ 10 known the telephone having a ~pee~h origlnation function - ~ :

whloh works generally as described below. ~hat is, ~ piece6 o~ speech information are stored in a bullt-in memory by making correspond to the te1ephone numbers in advance.

When an originatins call is made, a speech Bigna1 ls input from the hand~et transmitter microphone~ and it i6 checked against the speech information stored ~ in the memory by ~eans of the built-ln speech recognitlon ~devlce. When, as a result o~ the cheekup, the speeah information agreeing wlth the input ~peech ~ignal i~ ~ound, the telephone number stored iP corre~pondence to th- agreed spe~ch info~mation is read out and çonverted into a dial pu1~9 or mu1ti-Erequency signa1s and then sent out to the telephons network (o~flce line). At the tlme of ~he origination as above-mentioned, the ha~dget ~:

ls made to of~-hook to enable the speech 6ignal lnput ~rom the m~crophone. ~hen the hand~e~ i~ made to of~ hook, the telephone n~twork ~lt~h is automatically ~turned ON, and the telephone netwo~k is acqu~Fed~ Once the n~twork i~ acquired, the dial ~one rom the telephone o~ice 1~ t throu~h the ciecuit into thlg telephone ter~inal deYice and ~ent out to the telephon~ receiver, In the aonventional telephone termlnal dev~ce as explained above, part o~ the dial tone sent out to the receiver enters the microphon~ through an acoust~c ~oupling, and ~ent to the ~peech recognition de~ce in superpo~ition on speech signals to the telephone t~nsmitter, thus making the Apeech ~ignal identlEication ~ ~ .

.

2 ~ ~ 9 ~ 2 20375-654 difficult.

Further, the conventional telephone device is equipped for checking whether or not the speech recognition device functions normally.

In this checkup operation, first ~he speech signal is input from the telephone transmitter, analyzed and verified with the speech recognition device, and when the speech information that agrees with this speech signal is found, the ~speech data preset on the speech memory against this information is read out, reproduced and sent out to the receiver.

At this time, since the dial tones from the telephone network enter the receiver together with the reproduced speech signals, this reproduced speech signals representing the recognition result becomes mixed with the dial tone, thus making it very hard to understand.

Moreover, when in the registration of speech information and operation check of the speech recognition device, the ringing signal sounds by a call incoming while the receiver is receiving speech signals, the ringing signal enters the mlcrophone, thus causing also a disorder of interfering with the registration and verification work.

SUMMARY OF THE INVENTION :

The object of this invention is to protect the various workings related to the speech recognition from the interference by dlal tones or callers. ;~ According to a broad aspect of the invention there is provided a telephone terminal device, comprising:

a transmitter microphone; : ~ a receiver;

mode selector means for selecting between a registration mode and a speech mode;

~ ~ ~ 9 ~ 3 20375-G5 a speech recognition unit for analyzing speech signals received from said transmitter microphone and storing analysis data when the telephone terminal device is in the registration ~ :

mode, and for recogni~ing speech signals received from said transmitter microphone by comparing the speech signals with the analysis data that has been stored beforehand when the telephone terminal device is in the speech mode; :

hook detector means for detecting a hook status;

switch means, connected between a telephone network and said receiver, for disconnecting said receiver from the telephone network when the telephone terminal device is in the registration mode, and for connecting said receiver to the telephone network :

when an off-hook status is detected by said hook detector means : .

and the telephone terminal device is in the speech mode; ~ ;

a controller for generating a control signal when said speech ~:~ recognition unit is receiving said speech signals from said ~ .transmitter microphone, the off-hook status is detected by said hook detector means, and the telephone terminal device is in the speech mode; and ~:

signal level reducing means responsive to said control signal : :

for reducing the level of signals sent from the telephone network to said receiver.

According to another broad aspect of the invention there is provided a telephone terminal device, comprising:! ' '' ' a telephone receiver;

a transmitter microphone;

mode selector means for selecting between a registration mode and a speech mode;

~.

2 ~ ~ 20375-654 a speech recognition unit for analyzing speech signals received frcm said transmitter microphone and storing analysis data when the telephone terminal device is in the registration mode, and for recognizing speech signals received from said transmitter microphone by comparing the speech signals with the analysis data that has been stored beforehand when the telephone terminal device is in the speech mode;

speech reproduction means for reproducing speech information previously stored in a memory in response to recognition results - - : :

from said speech recognition unit, and for sending said speech information to said telephone receiver;

hook detector means for detecting a hook status;

switch means, connected between a telephone network and said telephone receiver, for disconnecting said telephone receiver from the telephone network when the telephone terminal device is in the registration mode, and for connecting said telephone receiver to the telephone network when an off-hook status is detected by said ::

hook detector means and the telephone terminal device is in the speech mode;

a controller for generating a control signal when the speech information from said speech reproduction means is being reproduced during the time that the off-hook status is detected by :~ said hook detector means and when the telephone terminal device is :~ in the speech mode; and .

~- means, responslve to said control signal, for connecting said speech reproduction means to said telephone receiver so that said .- ~ .

speech information from said speech reproduction means is sent to said telephone receiver, and for preventing transmission of speech : `:

4a 20375-654 signals from said telephone network into said telephone receiver.

Accordlng to another broad aspect of the lnvention there is provided a telephone terminal device, comprising~ a transmitter microphone;

a bell signal generating circuit for detecting an incoming `~ call from a telephone network and for genera~ing bell signals; an electroacoustic transducer for receiving said bell signals and for generating ringing tones;

selector means for selecting between a registration mode and a speech mode;

a speech recognition unit for analyzing speech signals received from said transmitter microphone and storing analysis data when the telephone terminal device is in the registration mode, and for recognizing speech signals received from said transmltter microphone by comparing the speech signals with the ~analysis data that has been stored beforehand when the telephone terminal device is in the speech mode;

hook detector means for detecting a hook status;

switching means for opening and closing a direct current loop ~ : :

for the telephone network, said switching means maintaining the -, .: ~ - :

direct current loop in an open state when the telephone terminal ::

device is in the registration mode, and closing the direct current :~ loop when an off-hook status is detected by said hook detector :~ means and the telephone terminal device is in the speech mode;

: a controller for generating a control signal when the incoming call is detected while said speech recognition unit is receiving speech signals from said transmitter microphone while : :.: .

the telephone terminal device is in the registration mode; .. . ......... . . .

2 ~ 4b 20375-654 preventing means, responsive to said control signal, for preventing transmission of said bell signals from said bell signal generating circuit to said electroacoustic transducer when the telephone terminal device is in the registration mode; and display means, responsive to said control signal, for effecting a visible display indicating the reception of the incoming call.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall circuit configuration diagram of the telephone terminal device according to an execution example of this invention.

FIG. 2 is a circuit configuration diagram of the speech network for FIG. 1, telephone device. ~ ;;

FIG. 3 is a function block diagram of the controller for FIG. 1, telephone device. FIG. 4 is a timing chart showing the operation at the time of call incoming in the registration mode of FIG. 1, ;~;telephone device. ~;

DESCRIPTION OF THE PREFERRED EMBODIMENT ; 20 Hereunder a preferred embodiment of this invention will - ;

be illustrated according to diagrams.

FIG. 1 is an overall circuit configuration diagram of the telephone terminal device according to a preferred embodiment of this invention.

Referring to FIG. 1, the AC terminals of the rectifier bridge 2 are connected to the office line (telephone network) L~ L2, and to the DC terminals of the rectifier bridge are connected;

; the plus side to L3 and the minuss side to L4.

In the speech line -~ , . ,-;~.

;~B ~ 2 ~ 4 4c 20375-654 ~ ;~ L3, a transistor switeh 5 to acquire the office line is inserted. ;~ Further, between the speech line L3, L4 are connected the power feeding circuit 30 which feeds power to the controller 10 and the speech network (hereinafter called "SPN") 7. To the SPN 7 are connected the handset transmitter 8 and receiver 9 respectively. The SPN 7, as is evident from FIG. 1, is equipped with terminals denoted by signs a, b, c, d, e, f, g, etc.

The terminal ~ ~ a, which is a received speech incoming terminal, is connected to ` ~ ;

the speech line L3 via the side-tone eliminating circuit 31. -~ Furthermore, between the terminal a and the minus-side speech line ;

4, is connected a transistor 6 which makes up a muting circuit " ' ' .'', " ' .:~:

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' ~ ~-.' '` ' , ~ . , , ~::

.~. .' , ' ~, ;~ ;,, '~ ,, ~'; "' '' .~ , 20~9~4 to have the received ~peech bypass the receiver 9~ ~he :~ terminal b, which is the received speech ou~put ~erminal, i~ connected to the handset recelver 9. ~he term1nal c, whlch i5 the transmitted speech input ~erminal, 1B :~ connected to the handset trans~itter microphone ~. ~he transmittee microphone 8 i~ also connected ~o the opeech input ter~inal h o~ the 6peech recognition un~t 11 and ~he speech input terminal i oE the recorded ~es~g~ sender unit 12. The terminal d, which i9 the rep~oduced speech input terminal, i~ connected to the ~peech output terminal j of the recorded me~sage eender un~t lZ via the :~ low-pa~ filter 15. ~he teeminal e, whlch ls the o r i g i n a t i o n / s p e e c h 5 e l e o t o r t e ~ ~ i n a l ~hereafter ~i/speech ~elector ter~inal"), is connected lS to the ~i/speech control output terminal k. The terminal , which i9 the ~F si~nal ~ul~ re~uency slgnal) input terminal, is conne~ted to the ~ signal output terminal e of the controller 10. Further, the terminal g, whlch is the transmitted speech output terminal, i~ connec~ed to 20 the 6peech line ~3. .

~: ~he SPN 7 is driven by the power fed from the o~flce line when it i5 acquired, and by the power ~ed from the DC ~ourc- Vco vla th~ aol~ctor ~ltch 4-2 whsn the o~iae ' ~ line ia not acqulred.

.`: 25In the operatlon ~ode of this telephone terminal devlce, there are ~ modes; the ~eri~ication mode, speech mode and regi~tration mode.

The selector 6witoh 4-2 has ' i the contact A~ a~ oelected ~ n the recognition mode, the ;~ contact i2 a~ selected in the speech ~ode ~nd the contact ; 30 C~ a~ selected In the rsg1stration mode, the contact~ Aa and ~2 be~ng connected to the power ~ource Vco. In the speech recogn~t~on unit 11, the spe~ch input terminal h i5 connect~d wlth the tran~mitter m~crophone `~ 8, the control data input/output terminal m is connected ..

: 35 with the control unit 10 and the analysis data .`~ input/output terminal n i~ connected with the memory 13.

Th~ ~peech recognitlon unit 11 is provided w~th a . - - " ~ reg~tratlon ~unctlon wher2by the ~peech ~ign~1 a~ r~oeived from the telephone t~an~mitte~ B under the control of the control unit lO 1~ analyzad in~o it~ oha~acter~stics and the analy~ls da~a io written lnto ~he g memory 13, and the ~peech ~ecognition functlon where the analy~ls data of th~ ~peech s~gnal ~eceiveB 1~ collated with the analyslo data pre~et ln ~he memory 1~, and the re~ulting checku~ data i~ given to ~he ~ontroll8~ .

~ n ~h~ reco~ded me~age ~ender 12, t~e ~peech input terminal ~ ~ oonnected with the telephone transmitter ~, the epeech output terminal j 1B connected wlth the regeneratlve ~peech input terminal d of the SPN 7 vla ~PF lS, the control data terminal o i~ ~on~ected with tne control unit lO and the ~peech data termlnal connected w~th the memory 14.

~ he recorded me~age ~ender 12 ia provided with th~ ~eco~d~ng ~unstion whereby the analog epeech ~ignal input Into the te~minal 4 ~ under the control o~ the control unlt lO, i~ oonverted lnto a d~gltal data an~ w~ltt~n 20 ~ nto the speci~led addre9s o the ~emory 14 and the reprodu~lon unotion ~he~e the 4peech da~a a~ re~d out from the speclr~ed addre~ o~ t~i memory 14 1~ converted lnto an analo~ nal and out~u~ from th0 term~na~ ~.

~h~ reco~dea ~e~age ~ender 12 and memory 14 may be replaceB by a ~ape ~ecorder.

The k~yboard 16, whlch i~ ¢onn~ted wlth ths controller 10~ 1~ eguipp~d with a dlal key and a ~unc~lon key llke the o~dina~y telephone keyboard, and an or~gination method selector key 16A. ~he origlna~ion me~hod selec~or key 16A 1~ used to ~ake a cho~ Ge b~tween the ordin~ry dlal o~lgination method by the dlal key manual operatlon ant speech dlal orlgin~tion method ~n~ead of the manual ~electio~ u~ing such a ~leotor key 16, may be adopted an ~utomati¢ ~eleotion ~y~tem whe~eln presslng the ~al key aft~ off-hook ~ele~t~ the manual tial origina~ion and inputtin~ a ~peech ~isnal af~e~ ofhook ~el~t~ She ~peech d~al origlnation.

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20~a~ The LE~ indica~or 20, which i~ connected wlth the controller 10 is made to flicker under the control of the controller 10. The li~uid-crystal indicator 21, which is connected with the controller 10 is made to dis~lay the origlnating dial number Eor the manusl dial origin~tlon under the control of the controller 10, the verification ee~ult ~rom the speech recognltion unit 11 in the speech dial origination and so fo~th.

The bell signal generating cirouit 17, ~hich ls conne~ted with the office line ~1~ L2r output~ the bell qignal to generate the ringing tone on recelpt of the call elgn From the office line ~ 2~ ~ the output terminal of the circuit 17 i9 connected the bell detect~on circuit 18 and the speaker 19 via the ~elector s~itch 4-4, ~he bell detection circuit lB i8 made to ; de~ect the bell ~ignal from the bell s~gnal generatlng circu~t 17 and output the detected signal to the terminal of the controlle~ 10.

Here, the ~elector switch 4-4 which ha~ the oontac~ A4 ~elected in the recognitlon mode, the contact a4 selected 1n the speech mode and the aontact C~ selected ln the resistration ~oae, and to the contact B4 corre~ponding to the speech mode i5 connected the ~peaker 19.

The switch S has a transi6tor 5A ~neerted ln the plu~-side ~peech llne L3 and a transistor 5~ ~or driving the tran~istor 5A.

The ba~e of the dri~e trans16tor 5 ' i9 connected to the dial pul~e ~DP) outpu~ terminal r oF the controller 10, and also to the epeech line L3 v~a the hook swltch 3-1 and selector switch 4-1. The hook ~witch ~; ~ 3-1 iB turned ON by the o~f-hoo~ o~ the hand~et B, 9 ~he ~elector s~itch 4-1 has the ccntacts Al, al, C~ corresponding to the veri~ic~tion mode, speech mode and : regls~ration mode respectively, and to the contact B corresponding to the speech mode is oonnected the base of the dri~e transi~tor 5B.

,~ -....

- ,':.i :.:....

~ ~; "~ " , ~ "~ 8 ;

2aogs5~ ~ o the mode set termlnal~ g, t o the controlle~ 10, i~ connected ~he DC power source Vcc ~ia ~he ~elector switch 4-3. ~he ~el w tor ~w~tch 4 3 has the contact~ A3, ~ .

~3, C3 corresponding to the veri~ioation mode, qpeech ~ :

mode and regi~tration mode ~e~pectlvely, ~nd the recognltlon mode contact A3 ls ~onnected to the t~minal ~, and the regl~tration mode oontac~ C3 ie oonnected So the termlnal t. ~he selec~or ~witohes 4-1, 4-2, 4-3, 4-4 are made capable o~ manusl ~el~ation indlvidually, and -:

10 are fo~med to perm~t interlocking operatlon of the whole ~ ~:

~eleotor owltches. -~ Fur~her, to the hook lnformat~on input termlnal u o~ the controller 10, i5 connected the D~ po~er source VcC via the hook ~wltch 3-2, ~h~e hook ewltçh 3-2 turne to ON wlth the hand~et o~-hook. ~he dial mode eet term~n~l v, w oE the controller 10 1B connected to the output of . .

the d~al ~ignal eelector ~witch 32.

By the ~han~eover o~ thi~ ~witch 32, 8el w tion o~ elther DP (~lal Pul~e) o~ ~F ~l~nal can be mate.

The mute control te~ml~al x o~ the :

ZO oontrolle~ 10 i~ connected to the ba~e o~ the t~anBistor 6 to pe~mit its oo~trol o the mut~ng o~rcuit.

The ~ED ~ dr~ve term~nal y of th~ control un~t 10 i~ connect~d to : ~E~ 20 ~o that th~ ~D 20 ~lioker~ when a bell deteotlon - :~ :~ ~lgnal i4 r~celved a~ the ter~lnal q.

~hl~ control unlt 10 ~ncorporate~ the dlal memory lOA. ~h~o dial memory lOA ha~ plural memory areae whleh are eelected by the oheakup re~lt data output to the controller 10 from the ~peech reoognltion unlt 11, and in e~ch memory area, the dial number data are 6tored in advan~e. ~t the time of ~peeoh dial o~gin~S~on, : acoording to the collation ~eBult~ data ~rom the ~pee~h :~ re¢ognitiOn uni~ 11, a epeoi~ic addre~ within the dial ~ ~memory lOA 15 selected, and the dial number dat~ ntored :ln thi~ memory a~ea of ~hl~ ~elected addre~ read out, 35 and thi~ read out dial number data i~ converted lnto a ~:

: .dial pul~e and o~tput from the terminal r, or elBe from - :~ the termln~l e ~h~n it is convertP~ lnto a M~ slanal, ~ ~. ;,. ~-.~-; - ~ -;.: . i- ; . ..

2 ~ ~ ~3 ~ ~IG. 2 is a circuit configura.tion di~gram oÇ the 5PN ;

7 shown in ~IG. l. :

In ~IG. 2, the received speech lnput terminal a ~or receiv1ng the speech signal ~rom the of~ice line ~1~ L2, 5 i5 connected to the input of th~ pre-amplifier 71, who~e output is connected to the inpus terminal 72A, one of the i.nput ~erminals of the selecto~ 6wltch 72, ~he :~ reproduced ~peech lnput term~nal d is connected to the lnput of the pre-amplifier 73, who~e output is connected to the lnput terminal 72~, the other Lnput termina~ o~ the selecto~ switch 7~. The selector ~witch 72 sele~s one of the speech signals from the te~minal a or d and ~ends it out to the re~eived speech a~plifier 74 by means oE the ~ontrol ~ignal given ~o the Di/3peech ~electo~ terminal e from the control unit. The output of ~he receiYed speech amplifier 74 is connected to the hand~et ~eceiver 9 via the received 6peech out2ut termlnal b. ;~ The ~F 6ignal input terminal F i~ conne~ted to the :: input Oe the pre-amplifier 75, whose output i~ connected ZO to one of the input ter~inal~, 77A, of the selector s~ltch 77.

The telephone transmitter ~ i~ connected to the input Oe the pre~ampl~eier 76 via the transm~ tted speech input terminal e, and the outpu~ of thls pre~ ~:: ampli~ier 76 is connected to the other input terminal 77 of th~ ~elector ewitch 77. The selector sw~tch 77, is re~pon~ive to the control signal given through the b:

terminal e from the controller lO to selec~ eithe~ one o~ the 61gnals rom the ter~inal6 f, e, and send lt out to the trans~itted speech ampl~fier 78. ~he output of the tran~m~tted speech ~mp~lfier 7~ i8 connected wlth th~ ~- ~p~ech l~ne L3 vla the transmitted speech output terminal ~:: FI~. 3 ls a block diagram showing the fun~tional ~ configuration of the controller ln FIG. l. ~ :

: 35 In FIG. 3, the key ~nput identifying unit lOl ident~ies the pressed key on the keyboard 16, and output5 the corresponding dial data to the read/wri~e : ~ , .. .

Uni~ (here1n~fte~ W Unitl~ ) 102 . ~he R/W Un~t 102 1~a ar~angea, ln the req~3trat~0n mo~e, tO W~1te tn~ ~1A~ data lnput Sr~m the KeY 1nPUt 1dOnt~Y1~9 ~ 101 l~to the dial memo~y l~A. 5~he R/~ unlt lOa, ln th~ up~ch mode, upon recelpt of ths addre~s data output rom the recognltio" control unit 109 d~ ribad later, read~ out the dial d~ta ~rom a ~emory area o the dial m~mory lOA a~ ~peG~fied by Sh1s address data and outpute lt to the dial send-out unit 104.

~he dial ~end-out unit 104 recelve~ ~e dial ~ata ~rom the R/W unit 102 and creates the corre~ponding d~al pul~e or M~ ~ignal to send it out rom the dlal pul~e send-out te~minal ~ or MF-~lgnal output terminal e~ The dlal mode ~et unit 107 rece~ves input ~ignal~ from the lS dial mode ~elector swltch 32 at it~ terminal~ r, w and i8 made to ~peoify either the dial pul~e ~ode o~ the ~F ~lgnal mode agaln~t the dlal ~end-out unlt 104.

~ he recognit~on unit controller lO~ control~ the drlve o~ the ~peech ~e¢ognition uniS ll, and 1~ arranget to output the checkup re~ult data glven rom the ter~inal m of the ~peech recognitlon unit ll to the ~/W unlt 102, dl~play ~ontroller loa and ~ecorded me~age ~nder controller llO. The re¢orded meosage sender controller llO, in the registration mode, con~rol~ the ~peech Z5 recorded me~sage sender 12 to perform the eecordlng operation o~ the ~peech 3~gnAl8 ~rom th~ Selephone tran6~1tter 8. In the qpeech mode and veri~lcation mode, upon receipt of ~he collation reqult data ~rom the recoqnitlon unit controller lO9, the controller l~0 command~ the speech recorded me~age sende~ 12 to reproduce ~he spee~h data corrosponding ~o the collation re~ult data. ~urther, in the ~peech mode, upon recelpt o the lnforma~lon 6how~ng the completlo~ of regeneration from the speeoh ~eoorded message ~ende~ 12, the c~ntroller 110 trlggers the r~trle~able tlmer 111 When the timer 111 i3 t~iggered, the tl~e ~ount ~or the predetermlned time (for ex~ple, 3 ~ec.~ lg ~t~rt0d, . - :

and when this ~e count ~lnl~he~, a time out ~i~nal 1 outpu~ to the ~/W unit 102.

The R/W unit 102 1 trlggered by thi~ time-out ~ignal and performe th~ ~en~ out operatlon o~ the dlal data a~ abo~e mentioned.

The display controller lO~i on reoeipt o~ the che¢kup re~ult data from the re~ogn4tlon unit controller 109, di~plays the collation re3ult on the llquld-cry~tal: :~ i~dicator 21.

~he hook-atate mode setting snd ~all inco~ing detecto~ unit 106 are arranged to ~eoel~e tho output o~ the hook swltch 3-2, ~elector switch 4-3 and bell ~gnal deteotor ci~ouit 18. ~he hook-~tate mode ~etting and call incoming aetection unit 106 are arranged to cont~ol the operation of the R/W unit 102, recognition coAtroller -:~ lOg and recorded mesaage sender oontrollBr 110 on the ba~is o the hook ~nformation fro~ the hook ~witch 3-2, the mode settlng in$ormation from t~e ~elec~or ~wlt¢h 4-3 and the call incoming ln~ormat~on from the bell detectlon circu~t 18.

~he hook-state mode setting and oall incom~ng : :~ detection unlt 106 are made to peror~ the oall lncomlng ~ ~ :

di~play by the flick~rlng dr~ve of the ~ED ind~cator ao, to give al~o the ~peech selectlon Bignal to th~ ~N 7 and ~ al~o to perForm the drive ¢ontrol of the mut~ng c~rcuit tran~stor 6.

Next, the operation o the telephone de~loe wlth the abo~e-mentioned ¢onEiguratlon will be explained. ~hen using this ~elephone devioe, firfit the ~etting of the regi~tratlon mode 15 made, ~ollowed next by the ~etting ~:30 o~ each of the verif1eation mode and speech mQde ~n ~~uc~e~ion, and ~o explanation will be m~de i~ the order : o~ the regi~tration ~ode, verl~i~ation mode ~nd ~peech .

mode.

l ~ ) Regi3'cration ~5ode . -. :~.

First o~ all, the selector ~wit~h 4-1 to 4-4 ~ turned to the contact~ C~ to C4 coprre~ponding to the re~i~trat~on mode.

The ~PN 7 o~r~t~ bv the ~ower ~d ... . . .

:

12 2~9~ from the power source V~c. Since the circuit switch 5 ls disconnected From the hook is~itch 3-1 by the sel~ctor ewitch 4-1, it is ln the condition oF no-tur~ing-ON ~namely, She condition not a~quiring ~he of~iae llne) even with the hand~et off-hook.

Since the ~peaker 19 is di6connected f rom the bell signal generatlng ~ircuit 17 by the selector ~wl~ch 4-~4, ~ the bell ~namely, ringing tone) does not sound even i~ there is a call incoming. The controller 10 3elect~ the regi~ration mode in re~ponse to the signal from the selector ~witch ~-3, and ~hen, in thl~ mode, the handset ~ :~ is in the of~-hook position, by controlling the speech recognition unit 11, analyzes the 6peech ~ignal ~rom the telephone transmitter B, ha its oh~r~oterlstlc data 15 written in the speciied area of the memo~y 13, and ;~ .moreove~, by controlling the re~orded mes3age sender 12, . :~ and by analog/digital conversion o~ the speech slgnal rom the tel~phone transmitter 8, and have it wrltten in I;

the me~ory 14. ~urther, the controller 10, by det~cting ~1 20 the key pre3~ed ~n the keyboard, recei~es the d~al data I :corresponding to that key, and ~r~te lt ln the dia~ ~Imemory 10A. I~ there i~ a call incoming from the oEfice :

Iline, the ~ell signal, as ~hown in FIG. 4, is generated in the bell generatlng circuit 17, thereby from the bell 25 detection ~ircult ~, the bell detection signal ~hown in `~FIG. 41b) is output.

Upon receipt ~f this bell de~ectlon . ~:

signal, the ~ontroller 10 lights the ~ED indicator 20 bit by bit as 6hown in ~IG. 4~c). 8Lnce th~ bell ~ignal ~generating circuit 17 i5 di aonn~cted from the ~peakee 19 n~30 by the seleotor ~witch 4-4, a ringing tone doe~ not occur.

In this mode, the user firet ~kes the handset of- .

hook, next lnputs rom the keyboard 16 the addeess specifying each memory area (~o~ example, "1"~, then inp~ts the registe~ed dial number and then inputs audibly ~rom the transm~tter B the sub6crib~r's name for that dial number. $he input dial number i~ registered on the 13 .

2 ~ memory area ~f the dial memory lOA corresponding to the lnput ad~ress. Further, the 6peech slgnal repre~entlng the subscriber'E: name input from the tr~n~itter 8 i8 sent into the sp~ech recognition unit 11, and th~ S characteristic data as analyzed therein 16 written lnto the memory area within the memory 13 which corresponds to the input addre~a. Further, the speech inpu~ ~rom the trangmitter 8 i9 also input lnto the recorded message sender 1~, and ~fter an analog/digit~l conversion, it 1 10 written into the memory area withln the memory 14 ~-~ r~ corresponding to the input address. ~ext, when the user desires to register another subscriber'~ na~e and dial number, he should input by operating the keyboard 16 the other address (for exa~ple "2") and the dial number followed by the subscriber'3 na~e from the transmitter 8.

~hen, through the process ~milar to the foregoing, the :~ name and dial number of the next subscriber will be reglstered. Furthermore, during thi~ registration prooe~6, a~ though the hand~et 19 in ~he of~-hook .i~ 20 po~ition, as the offlce line acquisition i5 not made i ~ through the circuit switch 5, there wlll be no ;~` registration trouble due to the intruRion of the dial tone into the receiveF 9.

~2) Veriflcation Mod~ ~5Thi6 mode is used to check whether or not the ~npu~ subccriber' 8 name and dial nu~ber are duly reglstered in the re~istratlon mode. ~irst, th~ ~eleotor swltoh 4-1 to .. , 4-4 ls switched over to contact6 Al to A4 corresponding ~; ; to the veriflcatlon mode. ~he SPN 7 is drlven by the power ~ed vla ~he ~elector switch 4-2 from the po~er source Vcc. Since the circult Cwitch 5 i~ disconnected from the hook switch 3-1 by the selector switch 4~1, the ~;

;: :circuit will not be made even ~f the handset i5 in She . . . .. :

ofE-hook position ~that is, the cond~tion where the 35 offi~e line are not acquired). ;.

:~:Since the speaker 19 is disconnected from the bell -~ signal generating c3rcui~ 17 by the selector Switcn 4-4, -~ ' ' ' ~ . 1',: .

- . ..

,, . ~ ~ . ," .,; ~ 2 0 ~ 9 ~ the einging signal will not come even if there is a call incoming :

The controlle~ 10 ~elects the verification ~ode wlth ~ .

the signal f~om the selector sw~tch 4-3, and in thi~ 5 mode, controls the speech recogn~tion unit 11 to analyze the speech slgn~l ~rom the transmitter ~, to coilate the charaoteri~tic data with the characteri6tic d~ta memorized within the memory 13, and to output the :

characteristic data agreed to the controller 10.

10The controller 10 control~ the liquld-cry~t~ indicator 21 to display the oo~lation result above~ :~ mentioned, and controls the ~peech ~corded me~s~ge sender 12, by giving the foregoing address to read out the 6peech data within the memory 14 that corresponds to 15 this address, to make a digitalfanalog conversion o the : :

speech data and to output the converted data ~rom the ::

term~nal ~ Further, when a bell detecting signal i~ output from :the bell detect~on c~rcu~t 18, the controller 1~ controls Z0 the ~ED 20 to flicker.

Fur~her, the aontroller 10 c~ntrols the ~ele~tor : 6witches 72, 77 in the SPN 7 50 that a speech signal le ~ent out ~rom the regenerated speeoh input te~minal d to the recelver 9.

That is, the selector ~wltoh 72, 77 are -~ set to the pos~tion shown in FIG. 2.

In thls mode, the user places the handset in the ~ :

o~f-hook position, and inputs aud~bly ~he subqorlber'~ name alre4dy registered from the receiver 0. ~he spee~h signal input from the telephone transmitter ~ is input to :

the speech recognition unit 11, whero Lt ~s analy~ed to extract the characteristlc da~a. ~hen, this characterlst~c da~a 15 collated with the data withln the memory 13, and the addres~ of the data that has agreed with the input characteristic data is output ~rom the speech recsgnitlon unit 11 to the controlle~ 10. The controller 10, by controlling the speech recorded me~age ~ender 12, read~ out the speech data from the memory area .

2~g~S~ ~ ~.

o~ the memory 14 correspond~ng to the foregoing address and have it regenerated. The regenerated ~peech slgnal as output from the termin~l j o~ the recor~ed mes~age sender 12 i input to terminal d of the SPN 7. ~he SPN 7 sends out the peech signal from t~e terminal ~ to the recelver 9. The user, by hearing the regenerated speech from the receiver 9, determines whether or not the speech recognition has been duly ~de. Since at ~his time, the cirauit ~w~tch 5 does not acquire the o~fice llne, there 0 S g no trouble in recogn1tion due to the intru~ion o~ the dlal tone into the receiver 9. : .

~3) Speech Mode The selector switoh 4-1 to 4-4 is changed over to the contacts al to B4 to ~elect the speech mode. Since the circuit switch 5 ~s connected to the hook ~witoh 3 1 by the selector ~witch 4-1, it becomes turned ON when the handset i~ made off-hook ~that i~, acquired ~tate of the maln line). The SPN 7 operates by receiving power from the acquired office line. The ~peaker 19 i9 connected to 20 the bell signal generating circuit 17 vla the selector ;.~ ::

switch 4-4, and emlts a r~nging tone at ~a~h call . .

incoming. ;~ The ~ontroller 10 controls the speech recogn~t~on unit 11 and speech regenerating unlt 12 to perform the ``. :;~ 25 same their operations as in the case o~ the veri~ication :.. -.. ; mode. Further, the oontroller 10 receives the address data as the collation result From the speech recognitlon ~nit 11 to read out the dial data ~rom the me~ory area /.

within the dial memory lOA corresponding to thi~ addre 30 and generates the corre~pondlng dial pul~e or M~ sig~al. ~. .

~he cholce between the dial pulse and MF signal i5 made based on the ~ignal Erom the ~elector s~itch 32.

When .

the controller 10 outputs a dial pulse, the dial pulse ls output to the circuit switch 5 to open/clo~e it. When the controller 10 outputs a MF signal, the MF slgnal ls output to the MF oignal input terminal oF the SPN 7, .

' ~ . ' , '~.

--~ 2~09~5~ ... . ..

The controller 10, from the time when the ~eech -~ lnput from the transmitter is started to the time when the collatlon result is input to the controller 10, keep~ the eelector Switcnes 72, 77 of the SPN 7 at the position ~ 5 opposite to that shown in ~I~. 2, Next ~ during the tlme ~ ~from the output of the checkup result to the finieh of the origlnation, the selector ~wit~h 72, 77 a~e kept in the position ~hown in FI~. 2, and ~fter complet~on o the origination, they are again ewitched over to the po~ition opposite to that shown ~n FIG~ 2. The controller 10 turns ON the muting circuit transistor 6, aftex the lap6e of a few seconds (~or example, 2-3 9ec. ) from the time the handset i~ ~ade off-hook, to form a mute ~tate. ~` $n this mode, the user Fir-~t take up the hand~et ~oEf-hook) and next presses the k~y 16A to ~et up the . speech originating mode.

Then, the switch ~ ls turned ON to acqu~re the office llne and the selector sw~tch 72, 77 of the SPN 7 1~ turned to the terminal a side t~ tran~Eer ~ ;

the ~peeoh signal from the office line to the receiver ~.

Therèfore, the dial tone from the o$$ice line i~ inp~t to - the recelver 9, and the ussr, by hearing thi~ dial tone, ~ recogn~zes, ~hat the office line have been acqulred.

After 2-3 sec, the tran~istor 6 a~ the muting c~rcuit i9 turned ON, and the dial tone from the o$$ice llne is 25 drawn out.

Thue, the detour of the dial tone from the -~ receiver 9 to the transmitter 8 can b~ blo~ked. In thie condition, when the user lnput audibly the subsc~iber'~ name from ~the tran~mitter 8, th~s speech signal is input to the speech recogn~tion unit 11. In the speech ~ rocognition unit 11, the input speech signal ie analyzed `~ to create ~t3 characteri~tics and thie characte~istic data iR collated with the data stored in each me~ory area within ~e memory 13, and the addre~ of the me~ory data th~t has agreed on the collation i~ output to the ~ 3S ~ontroller 10. The controller }0, on receipt of the addreee ~rom the epeech recognition unit, controls the received message sender 12 to reproduce ~he sp~ech s~gnal ~ 17 2 0 ~ 9 ~ 5 4 stored ln the memory area wiShin the memory 14 tha~ corresponds to the address, and changes over the ~elector swit~h 72, 77 o the SPN 7 90 th~ t~,e reproduce~ ~peech ` ~s~gnal ~rom thc recorded mes~ge sen~er lZ ls tran~erred to the receiver 9. As the re~ult, f rom the aforemention~?d memory ~ e ~he mem~y 1~t th~ speeoh d~t~ ;a re~d ~ul,, u~lv~rt~d lnto an ~nalO~ ~peQah q~gnal and input into the SPN 7. This reproduced ~peech ~ignal i9 sent out to the receiver 9 fro~ the SPN 7. ~he user, ~upon hearing the reproduced speech si~nal, ve~ifie~ whether or not the 3peech recognit~on ha6 been duly ; per~ormed. The controlle~ 10, upon rec2ipt o~ the info~mation sho~ing the completion o~ the reproduction ~rom the reoorded mes~age sender 12, start3 a t~me count Eor a predete~mined tlme tfor example, 3 aec.). In c~se the speech recognition ha not been duly made, the u~er returns the handset to the on-hook statu~ while the tlme count is going on, thereby forestalling the ~endout o ~ ~ wrong dial numbers. ~hen the predete~mined time ;;- ;

20 mentloned above elap~es without the handset being `~ : :

returned to on-hook, the controller 10 reads out the dlal data corre~ponding to the foregoing addres~ from the d~al ;~ memory 10A and outputs it in dial pulse or MF signal ~a~hlon.

For example, when a MF ~ignal 19 output ~rom ;~ 2S the controller 10, ~his MF slgnal i~ sent ~o the gPN 7.

At this ~lme, since th~ SPN 7 i~ ~et to the statu~ shown in FIG. 2, the MP signal is output from ~he tran6mitted speech output ~e~minal g ~o the plus s~de speech line ~3, thereby the originatlon i8 made. On the other hand, when the dial pul3e is output from the controller 10, the ON/OFF of the ~w~tch 5 ~s repeated by this dial pulee, thereby the dlal pulse is ~nt out to the of~ce line.

Incidentally, after completion o~ ~he reproduction, when the user inputs the word "Yes" or "No" ~rom the transmitter, the wo~d is spee~h recognized, and ~uch a conEigurat~on as to dete~ine whethe~ or not to perorm -~ the orlgination according to that recognitlon re ult ls 18 2'~ -f~ ~ .

al~o available. In thi~ ca~e, into the memory 13, the charaeteristic data for recognition of "Ye~" or "No" a~e stored in advance, and ~he controller lo, ater comple~on of the reproduction, ~ontrols the speech S recognition unit ll to collate the input speeoh signal wlth the characteri~ti~ data - the abovementioned "Yes" or "No" -.

on co~pletion of the or~gination, the con~roller ~0 chan~e~ over the sel~ctor switche3 72, 77 of the SPN 7 to t~e position opposite to the ~tatuæ shown in FIG. 2, Namely, thereby both the transmi~ter ~ and receive~ 9 are connected to the speech line L3, L4, thu~ the conversation is se~ up. ~t the ~ame time, the ~ontroller lO turns oEf the transistor 6 as the mutlng circuit, thus 15 making it po ~ible to trans~it duly the ~peech signal6 from the office line to the reeelver 9.

When the handset ls made off-hook, unless t~e speech origlnatlon key 16A ~s pre~oed, the speech orlglnation mode as aforenoted is not set up, but the ordinary 20 manual-key dial-origination mode ~s ~et up.

~ he scope o~ thl~ invention shall not be limited to th~ preferred embodlment as abovementioned. ~hls invention ~g appllcabl~ not merely ~o the telephone equipment like the pre~erred embodiment but also to the wlde use ~n var~ou9 kinde o~ telephone terminal devlces.

Further~ore, lt i~ applicable not only to the ~erminal device that perfo~s dlal origination in ans~er ~o the ~peech reccgnitlon re~ult8 but also to the term~nal device that perform~ ot~er functions (~or example, 30 message reproductlon in an automatic answering telephone 4et ) in answer to the re3~1ts of speech recognit~on.

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