GB2271914A

GB2271914A - Mobile telephones

Info

Publication number: GB2271914A
Application number: GB9325560A
Authority: GB
Inventors: Takayuki Nonami
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1989-04-03
Filing date: 1993-12-12
Publication date: 1994-04-27
Anticipated expiration: 2009-07-20
Also published as: GB9325560D0; GB9316561D0; GB2271915B; GB2271914B; GB9325561D0; GB2267797A; GB2267797B; GB2271915A

Abstract

A mobile telephone device comprises a separate paging signal channel in addition to the conventional transceiver channels which process voice signals. The paging signal channel has a lower power consumption level than the transceiver channels. A power supply control device shuts off power to the conventional transceiver channels when in a standby mode, i.e. when waiting for an incoming call, and applies power to the paging signal channel instead. Therefore, power consumption is reduced in the standby mode and consequently, the operating time of the battery is extended. Power is applied to the transceiver channels during voice communication periods. A calling party's telephone number received in the paging signal channel is stored and displayed. A control unit has the capability of immediately returning the calling party's call from the telephone number so stored and displayed. <IMAGE>

Description

F ' ' 2271914 j.

Mobille Telephone Device With Llow Power _'--onsunn-Jcn is This invention relates to a mobile telephone device having an incoming call receiving funcz-,on assoc-Jaze-with a paging subsystem thereof.

Fig. 1 is a perspective view show".-L,a the externaappearance of a conventional type of portable telep---ne set. Fig. 2 is a block diagram shc-wing a configuration of a conventional type of telephone seti. In each of the figures, 101 denotes an antenna transmitting or receiving an electromagnetic wave, a CPU (a control part) for analyzing received data controlling each of the blocks, 106, a memory for with CPU 1o5, 107 a display part, 108 an operating such as a keyboard, 109 a buzzer (a ringing element) informing the presence of an incoming call to operator, 152, 153 a receiving filter and a transmitt-na filter, respectively, connected to the antenna 101 for use in blocking a non- required band, 154 a receiving part L is 2 for demodulating a high frequency signal to a base band signal, 155 a frequency synthesizer for applying a reference frequency to the receiving -part 154 and a S.4 transmitting part 156 modulating the base band Jgnal i-o high frequency a data nt a signal, 157 modulation/demodulation part for modulating a control signal of the base band signal demodulated by the receiving part 154 into a digital signal and modulating a digital signal to the base band signal, 158 a voice signal processing part for processing a voice signal for com-municat-Jon, 159 an ear piece (a voice output means) to cause an operator to listen sound, 160 a microphone through which an operator may input voice (voice input means), and 16! a battery (a power supplying means) acting as a power supply f or each of the blocks.

An example of a mobile telephone device is "Personal Portable Cellular Telephone" Model 900, manufactured by Mitsubishi Electric Corporation.

Fig. 3 is a perspective view showing the external appearance of a conventional type of paging receiving device, and Fig. 4 is a block diagram for showing a circuit configuration of Fig. 3. In the figures, 201 denotes an antenna, 203 a receiving part for demodulating a high frequency signal into a bass band signal, 204 a data demodulation part for demodulating a base band signal into a digital signal, 205 a CPU for analyzing the received data of the digital signal, 207 a displaying part, 208 an operating part, 209 a buzzer for informing the presence of a call to an operator, 210 a battery acting as a power supply for each of the blocks, and 211 is a DC/DC converter for converting an output voltage of the batteky 210.

C 9 1 1 c 3 An example of a paging device is an 11RDS FM pager type FR-50E (for Swedish Syst-em)" manufactured by Mitsubishi Electric Corporation.

The operation of each of the circuits of Figs. 2 and 4 will now be described. First, an operation in which a porzahle telephone set is called up fron. a base station and the like will be described. A signal containing a call sgnal trans-mitted from the base station is received by the antenna 101. A required frequency band is fl-Itered out from this signal by the receiving filter 152. Then, the receiving part 154 may use a tuning frequency supplied from the frequency svnthesizer 155 to denod,.; Iaze the filtered signal into a base band signal and ouzzut it to the data modulation/demodulation part 157. The data mcdulation/de.,iodulation par't 157 may demodulate the base band signal into a digital signal and then output it to the CPU 105. The CPU 105 may ring the buzzer 109 to call up the operator upon sensing a call signal in the digital signals.

When the operator acknowledges the sound of buzzer and denresses a transmitting key to the operating part 108, the CPU 105 may acknowledge this depressing action and initiate a return call via the base station. After this operation, the operator may use the microphone 160 and the ear piece 159 to communicate. During this period, the voice signal processing part 158 may process the voice signal, a voice signal inputted from the microphone 160 is outputted as a base band signal and the base band signal input from the receiving part 154 becomes a voice signal and is outputted to the ear piece 159. The transmitting part 156 and the receiving part 154 may perform a modulation and a demodulation between the base band signal and the predetermined frequency signal. The signal modulated at the transmitting part 9 4 is 156 is transmitted from the antenna 101 and the signal recei,.,ed at the antenna 101 is input1ted to the receiving par-'154. Under a waiting (standby) condition for receivIng a call signal, power must be 'supplie-d batterv 161 to the receiving part 154, f--ecuencv 4 svnznesizer 155, data modulat..Lon/demodula-::_cn part 157, CPU 105, memory 106, displaying part 107, operation part. 108 ana buzzer 109.

I ie operation of Ithe paging receiving machine shown in Fiqs. 3 and 4 will now be described.,-1'_th respect to the paging receiving machine, an example w"-, be descri-c-ed in which the machine is operated by a voltage havina an outDut voltace of bat--erv 210 ccnverted into 5 V:.-.roua.ri DC/DC conver4-er 211. In a s--milar manner s tn a t of a portab3e telephone set, a signal sent from base station, or the like.. is passed throuah the antenna 201, receiving part 203 and daza demodulation part'404 and then converted into a digital signal. After V 4 S4 receii ng the digital Lgnal, the CPU 205 detects a call signal from a calling party and stcres a message con'ta I S4 ined in the call ignal into the me=ory 206, and at the same 4- 4 L;t at the display part 207. it me, displays further rings the buzzer 209 to call up the operator. The onerator acknowledges the sound of t-he buzzer, looks at a message displayed at the displaying part, and can per'fform a correspondina countermeasure. For example, in case the message is a telephone number of a calling party, the operator can communicate with the party through another totally separate communication means, such as a public telephone system.

able telephone Since the convent:onal type of port set is constructed as above in Fig. 2, a power supply must always be supplied to the frequency synthesizer 155 in such a way that the operator can monitor the calling 8 t- v is signal in a standby mode, resulting in substantial consumption of power during the waiting (standby) time, so the charge on battery 161 is depleted, shortening the operating t4 me thereof.

Although the conventional type of paging receiving machine of Fig. 4 has a lower power consumption level and --4ng I a longer overat- L-ime of the battery 210, as ccmpared with that of the portable telephone set of Fig. 2, Jt has other disadvantages. For example, in the case where communication is required after being called up, a telephone nu.---er of called party displayed at the displaying part 207 of the paging rece 4 ving machine be manually input into a separate telephone system rc perform a cc-=unication, resulting in an inconvenience and so a long time passes before the c-ommunicat'on is started.

SUMMARY OF THE III'VEITTIONT

The present invention eliminates the above-described problems and its object is to provide a mobile telephone device in which operating time for a given battery can be extended, initial communication can be carr 4 ed out with a paging device which receives a call and a call can be transmitted to a calling party at once after the call signal is received by the paging device.

t 4 The objects of the present inven ion are fulfilled by providing a mobile telephone device comprising: an antenna for receiving and transmitting high frequency communicat _4 on signals; operator input/output means for enabling an operator to input data or voice communications into said telephone device or receive data or voice communications from the device, said input/output means including, means for generating a standby signal for initiating a call waiting period (standby time) in 6 1 1.0 i 5 which the telephone device can receive incoming calls, and means for generating a transmit (talk) signal for initi-atting a voice transmission period (talk L-me) in T,.;!-,ich the telephone device can transmit and ice and data communications; receive vc.

c.-nt--ol means connected to said cnerator receiving said standby and input/output means for -her transm'L."t s.JJgnaIs to place said telephone de% ice in eit standby or voice transmission (talk) modes, respec----vely; = i first signal processor means for receiving and transmit4--ing voice and data communication signals Lrom and to the antennae, and transporting sa-Ld voice and data c=--unication signals between the antennae and the conzrol means, said first signal processor means having a first power consumption level when energized by electrical power; second signal processor means for receiving data communication signals of incoming calls from the antennae and transporting the data communication signals ft-om the antennae to tthe control means, said second signal processor means having a second power consumption level when energized by electrical power which is lower than the first power consumption level of the first processor means; power supply means for energizing the telephone device with electrical power; and power supply control means, responsive to the control means placing the telephone device in the standby mode, for selectively supplying said electrical power only to said operator input/output means, control means and second signal processor means, and responsive to the control means placing the telephone device in a voice 1 7 n 5 transmission mode, for also supplying said electrical power to said first signal processor means.

The high frequency communication s.Lgnals received or transmitted by t,Ae antenna include first high frequency s4Lanais and second high frequency signals of ve different respect..equencies.

The fJL_rst processor means is a conventional mobile telephone transceiver and it processes only the first h-gh frequency sJLgnais, i.e. the carrier frequency and in"fcrmat. on modulated thereon of conventional cellular --=-Lone svstems.

The second processor means can be a convenzional receiver po-14 rm paging device and it processes __on of an.

on'y the second high frequency signals (paging signals), i.e. the carrier frequency of the FM pacer.

The syst-em of the present invention prolongs the operating time of a battery used in a mobile telephone device. The operating time includes the su-m of "standby" time and "talk" time. "Standby" time is the time that a mobile telephone device has the power turned on while waiting for an incoming call from a calling party. "Talk" time is the cellular air time, or the tine that voice communications are conducted between the mobile device and the calling or called party's telephone. By removing power from a majority of the components of the mobile telephone device, especially the frequency synthesizer, during "standby" time, the operating time of the battery can be extended. The second signal processor means (the FM pager) subsystem makes this possible, since it consumes far less power than the first signal processor means (the telephone transceiver); and, therefore, the FM pager can be used to receive paging signals, including a calling party's telephone number.

f 1.

1 8 For purposes of the following de-==ription, the mobile telephone device of the present -,.--.-=-ntion may be considered to be in a "standby model' d,.;,-._-ng llstaridbyll time, and in a "talk -,-,icdell during "talk" BRIEF DESCRIPTION OF THE DRA,.,__---SS

Fig. 1 is a perspective view showin= -the external appearance of a conventional type of por,:-=--!e teleephone set.

Fig. 2 is a block diagram sho,,;--::

conf-guration of the conventional C:== of pcrzable telephone set of Fig. 1.

Fig. 3 is a perspective view the appearance of a conventional type of pa=-nz -ece-J-:er.

Fig. 4 is a blcck diagram shcw:.nz a circuit f 4 type of zaging receiver con guration of the conventional of Fig. 3.

Fig. 5A is a block diagram shjjcwng a c-4_-cu-;t configuration of a mobile telephone set ac=ording to the first preferred embodiment of the preser.-: invention.

Fig. 5B is a block diagram shc-.,:_-:.-.=_ details of control part 162 of Fig. 5A.

Fig. 6 is a flow chart illus-t-rat--n7 the opera-L4 on of the mobile telephone set shown in Figs. 5A and 5B.

Fig. 7 is a block diagram for s&-,c:-..--ng a circuit configuration of a mobile telephone se-: according to second and third preferred embodiments off the present invention.

Fig. 8 is a flow chart illustrating t-he operation of a mobile telephone set according to z.he second and third preferred embodiments of the presen-: invention of Fig. 7.

Fig. 9 is a diagrammatic view illus"trating one example of the contents of a ROM shown in Fig. 7.

X 9 Fig. 10 is a configuration of a mobile telephone set according to a fourth preferred embodiment of the present invention.

Fig. 11 is a flow chart for illust--ating an operatIon of the mobile telephone set shown in Fig. 10 Fig. 12 is a block diagram for showing a circuit configuration of the mobile telephone set according to the fifth preferred embodiment of the present invention.

Fig. 13 is a block diagram showing a circuit configuration of the mobile telephone set according to a sixth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBOIDI"MiTS

One preferred embodiment of the present inventlon will be described in reference to the drawings. in Fia. 5, 102 denotes a receiving filter for a paging function for use in pasting signals in the frequency range of a paging signal, 103 a paging receiving part for demodulating a high frequency signal of the paging signal into a base band signal, 104 a paging data demodulat4cn part for remodulating the base band signal of the paging signal to a digital signal, 111 an antenna for receiving either a high frequency (a second high frequency wave, associated with a paging function or a voice communication (a first high frequency wave), 115 CPU (a controlling part) including an instantaneous calling means, 116 a memory associated with the CPU 115 and 162 a control part for the power supply 161. Other component elements are designated by the same numerals as those of Fig. 2.

Fig. 5B is a detailed circuit diagram of the power control part 162 in Fig. 5A. Reference numeral 401 depicts a main power switch which is directly controlled by means of a power supply key on the key pad of the operating part 108 and turns an and off the power of the block diaaram showina a circuit is " 0 is battery 161. The output of the main power switch 401 is connected to an automatic voltage regulator (AVR) of 5V and a power switch 402 for the automobile telephone transceiver portions of Fig. 5A including parts 154, 155, 1556, 157. The AVR 403 generates an output of 5V D.C. and applies power to paging portions 103, 104 and control " by a part 115, 116. Switch 402 is turned an and o.- power supply control line from CPU 115. The output of switc.-. 402 is directly transmitted and supplies the power k-o the radio transceiver portions 154, 155, 156, 157 of the automobile telephone, and to the voice signal processing part 158 via AVR 404. Switches 401 and 402 may be any suitable type of semiconductor switches known in the art.

The operation of the mobile telephone set of Fias. 5A and 5B will now be described in reference to t-he flow chart shown in Fig. 6. After a power supply switch on keyboard 108 is turned on, that is, during a wait--ncl (st-andby) period, power is supplied from the battery 161 via switch 401 and AVR 403 to portions 103, 104, 115, 116 but not to the portions 154, 155, 156, 157 enc1osed by the doted line in Fig. 5 (step ST 100). The high frequency signal received at the antenna 111 passes through the paging filter 102 and then is inputted into the paging receiving part 103. The CPU 115 detects a call signal in the digital signal demodulated by the paging receiving part 103 and the paging data demodulation part 104, and stores a message (received data) contained in the call signal in the memory 116. In case that the received data is not a telephone number of a party to be called up, the received data is displayed at the display part 107 (step ST104), rings the buzzer 109 for a specified period of time to inform t 1-he operator (step ST105).

C_..

11 In case that the data is a telephone number of a party to be called up in step ST103, the received data is transferred to and registered in a region speci-fied for telephone numbers to be called from the memory 116 (step ST106). When a telephone number is inputted independently of a received call from the operating part 108 (the keyboard) of the mobile telephone set, it is displayed on the display part 107. Likewise, when the telephone number of a party to be called up, received through the paging portions of Fig. SA is received, it is displayed in the displaying part 107 in a similar f a s11 -, J1 truct4 ion (step ST107). In addition, an ins -on is arnl--e,-J to the power supply control part- 162 and switch 402 ihere-in in such a way that the buzzer 109 may be rung via part 158 (step ST108) and both the 'I- ransmitting and receiving of voice communications can be performed. Also, the power supply control part 162 via swiL--ch 402 connects each of the non-energized blocks 154, 155, 156, 157 with the battery 161 (step ST109).

Under this condition, if the transmitting key (11SEND11 key on keyboard 108) is depressed, the CPU i15 will acknowledge this depressing operat. on and stop the ringing of the buzzer 109. The CPU 115 may then execute an instantaneous calling program, retrieve a tele-,.19,cne number of a party to be called from memory 116 as a digital control signal from the telephone number rea-on thereof and then output it as a digital control signal to the data modulation/demodulation part 157. 'TAhe telephone number of the party to be called up bec-cmes a base band signal at the data modulation/demodulaticn part 157. Further, the telephone number of the party to be called up is modulated at the transmitting part 156 as Jon a control signal and then transmitted to the base stat.

of a cellular system from the antenna 111 through a 1 12 --er, a trans-.:."1--ting filter 153 (step ST112). Thereaft conversation may be carried out in the same manner as would be done with a convent-Lonal type of- mobile telep.-.cne set (step ST113), and, there aft er, an 'lend of conversatlonll signal is received from the base station, or 'Lor=.-i depression of an end of conversation 'J'-.ey on kel,bc-=rd 108, and the conversazlon is terminated (step ST1141. Then the CPU 115 mav execute an instructlon prog---== and give an instructlon to the power supply contr-cl. part 162 and once again shut off the battery 161 from each of the blocks enclosed by the dotted 1-4ne in Fig. That is, the systern. returns -W its wait-ing (standby) condition (step ST116). In case '-hat '-'e % - I_ L- depressed at the st trans=::.L--ing (SEND) key is not- 1-ep ST-110 'within a specified period of ti-ne, CPU 1:.5 may execute the program of storing th.a telephone =mber of a part-y to be called up, display the fact that the call was received at the display part 107, Srcp the r4naing of the buzzer 109, and return to the wa-J4k--.4i-ng (st-andby) condit-on (step ST111).

F C7. 7 illustrates a mcbile tellephone device 1 - accorc--J-,-.a to a second preferred embodinent in which in addit--cn to the circuit configuration shown in Fi.g. SA and 5B, a voice responding part 120 is added and voice means is added to thie CPU 12- The voice respond 5.

responding part 120 is compr-,sed of R01.1 in which a predetermined message is coded and a decoding circuit for use in converting the coded data within the ROM into a voice signal. For example, a coding system can be realized through ADPCM (Adaptive Differential Pulse Code Modulation) and a decoding circuit can be realized with a ADPC:11 decoding LSI, such as a type MSM 6258, ADPCM IC manufactured by Oki Elect r i c product.

Industry Cc., Ltd. With this arrangement, a more is ef f ective processing can be realized in the event that the transmitting (SEND) key is not depressed within a specified period of time at step ST110 in'-Fig. 6.

Referring now to the flow charts of Figs.6 and 8 (A), the operation of the circuit of Fig. 7 will be described. CPU 125 may detect a telephone number of a party to be called and perform each of the functions in steps ST106 to ST109. Thereafter, if the transmitting (SEND) key is not depressed within a specified period of time (step ST110), the circuit of Fig. 7 may perform the processing of Fig. 8A subsequent to the step ST200. At f irst, CPU 125 may execute the instantaneous call program, retrieve the telephone number of a party to be called out of the region of the telephone numbers in memory 126 to be used for calling, and then output the telephone number of the party to be called up to the t 156 through the data %.ransmitting part modulation/demodulation part 137 so as to call the number (step ST200). If the party to be called up responds to the call, CPU 125 may execute the voice responding program therein and output a coded message indicating the absence of a party at the mobile telephone, said message being stored in the ROM of the voice responding part 126 including the ADPCM decoding LSI. The ADPCM decoding LS! converts the coded message into a synthetic voice message and then outputs it to the voice signal processing part 158. In this way, a synthetic voice message indicating the absence of a party at the mobile telephone is sent out to the calling party (step ST201). Upon completion of the sending of the synthetic voice message, it causes the communication to be automatically terminated (step ST203) and the mobile telephone is returned back to its waiting (standby) condition (step ST204). At this time, 1 C.---.

14 is the fact that the call was received may be displayed on display 107.

In the above-descrribed preferred embodiment, a syszem having a voice responding means added within CPU 125 has been described. However, a means for transferring a message to a renot-e location may also be added to CPU 125 (a third preferred embodiment). That is, as shown in Fig. 9, a ROM at the voice responding parz has s-"ored voice messages corresponding to 11111 to 11011 (.1that ls, llichill to "zero" in Japanese phonetics) and voices of proper messages (11... ni denwa o shite kudasaill in japanese phonetics in Fig. 9) which are coded as data in ad-. anca. Further, a transfer telephone number (the number of a remote telephone device to which the message shaill be forwarded) inputted from 'the keyboard 108 is sto._red in advance in a transfer telephone number region in the memory 126 (step ST210). Under this condition, in the event that a depression of the transmitting (SEND) key could not be detected in st-ep ST110 in Fig. 6 within a specif 'Led period of time, CPU 125 may perf orm operations subsequent to step ST211 indicated in Fig. 8B. At first, CPU 125 may execute the transferring p-rogram and output a telephone number to which the message is to be forwarded stored in the transfer telephone number region to the data modulation/demodulation part 157. Then a call is placed in the same manner as that of the first preferred embodiment (step ST211). Then CPU 125 executes the voice responding program and outputs the coded data corresponding to each of the digits of the calling telephone number stored in the calling party's telephone number region in the memory 126 in sequence to the LSI for the decoding ADPCM. Then, it may output a message within the ROM upon completion of the output of the coded is data corresponding to all digits (step ST212). As described above, in this way, it is possible to deliver a voice message of (..ni denwa a shitg kudasai,4in Japanese phonetics)) in addition to the calling party's telephone number to be called up to an operator who is present at the remote location to which the message is fonjarded. operations after completlon of delivering of the voice message (steps ST213 and ST214) are similar to that of the above-described preferred embodiments.

Fig. 10 is a block diagram showing a circuit configuration of a mobile telephone device according to a fourth preferred embodiment of the present inventlon. Thi.s, preferred embodiment is an example in which the mobile telephone device is comprised of a main body 39o of a wireless device and a handset 391 and in particular, it is an example af a mobile telephone device to be installed in a vehicle. In the figure, 301 denotes a common antenna for use both in paging and mobile telephone functions, 302 a receiving filter for the paging function, 30-3 a receiving part for the paging function, 304 a data demodulation part for the paging function, 305a a CPU (a control part) at a main body for controlling the main body 390 of a wireless device, 306 a memory which CPU 305a at the main body uses, 352 and 353 a receiving filter and a transmitting filter, respectively, 354 a receiving part, 355 a frequency synthesizer, 356 a transmitting part, modulation/demodulation part, 358a a voice signal processing part at the main body 390 of the wireless device, 362 a power supply control part (similar to part 162 of Fig. SB) at the main body 390 of the wireless device and 320 a voice responding part. 305b, denotes a CPU at the handset for controlling the handset 391 (a control part at the handset), 307 a display part, 308 an 357 a data k 16 is operation part, 358b a voice signal processing part at the handset 391, 359 an ear piece, 360 a mic-rophone, 363 a speaker, and 362b a power supply contr,-%l part -at--the handset. The operation of each of the bl- ccxs described above is similar to that corresponding:o each of the blocks shown in Fig. 7. In Fig. 10, a sneaker 363 is arranged as a ringing element in place of 7:.-.e buzzer 109.

The operation of the device will ncw be described in reference to the flow chart shown in F_"q. 11. After turning on the power supply switch (not s-.own) only the portion outside of the dotted line in Fig. _-O is supplied with electrical power from an external baz:tery (power supply means) through power supply contrc- portions 362a and 362b (step ST300). Then the CPU 30-:-= at the main body detects a calling signal in a digital signal decoded 303 and the paging data by the paging receiving part decoding part 304 (step ST301) and stores the message data (received data) contained in the calling signal in In case tha- the received the memory 306 (step ST302). A data is not a calling party's telephone number (step ST303), the received data is transferred ':o the handset side CPU 305b. The CPU 305b at the handse-- displays the received data to the display part 307 (Step ST304), rings the speaker 363 for a specified period of time and informs an operator of the calling (ster -5-305).

In case that at the step ST303, the number is a calling party's telephone number, the received data is transferred to the region specified as a calling -ep ST306). telephone number area within the memory 306 ls"L Then, the received data is transferred to the CPU 305b at the handset side. In addition, an irstruction is applied to the power supply control part 362a and then a power is supplied to each of the blocks within the dotted line -of Fig. 10 not yet energized (step ST309).

1 C' 17 CPU 305b at the handset may display an part 307 a calling party's telephone number under the same condition as if it was inputted from the keyboard 308,.-(step- -STn&7). Then, the speaker 363 is rung (step ST308).

Under this condition, as the transmitting key at the operation part 308 is depressed, CPU 305b at the handset acknowledges the depressed condition and stops the ringing of the speaker 363. In addition, an instruction is given to the power supply control part 363b to cause the non-energized blocks within the dotted line at the handset 391 to be connected to the external battery so as to supply power thereto (step ST309). In this way, preparation for calling operation ils completed for the calling party's telephone number. Thereafter, in the same manner as that of the firstpreferred embodiment of rig. 5A, the calling party's telephone number is used to place a call to that party (steps ST310 and ST312), and the operator conducts a conversation (step ST313). After completion of conversation (step ST314), CPU 305a at the main body and CPU 305b at the handset give an instruction to each of the power supply control parts 362a and 362b, respectively, so as to shut off power to the portion of the telephone enclosed by the dotted line in Fig. 10 from the external battery (step ST316).

With the constitution shown in Fig. 10, one having a voice responding part 320 similar to part 120 in Fig. 7 is illustrated. Even if this is not present, it may provide a similar effect.

If the configuration shown in Fig. 10 is used, in the same manner as those of the second and third preferred embodiments, if the transmitting (SEND) key is not depressed at the step ST3 10 within a specified period of time, more effective processing can be attained. That 1 C_ 1 is is is to say, in the same manner as that of the second preferred embodiment, CPU 305a at the main body may execute the ins-iCantaneous calling program, af ter ansl-apse of the specified period of time, the calling party's telenhone number is used to call it and then the voice responding prcgram is executed to output a -,:iessage within the ROM of the voice responding party 320 to the voice Jng part 358. In addit--cn, in the same signal process. manner as thaz of the third preferred embodiment, transferring means may also be applied:c the CPU 305 at the handset and CPU 305a at the main bcd,-.,. In this case, C:',j 305b at the handset takes the transferring telephone number from the operation part 308 _n advance and trans.fers it to CPU 305a at the main bc-dy. Then, CPU 305:a at the main body stores the transferring telephone he memory 306. At nurnber in a predetermined region in It: the step ST310 in Fig. 11, after a specif ied period of tim.e elapses, CP_U 305a at the main body may execute the transferring program to call up the transferring party and execute a voice responding program, resulting in the calling party's telephone number being sent as a voice message.

Since the mobile telephone device to be installed in a vehicle is operated as described abcve, even if a perlod during which the battery is not charged with electrical power is extended for a long period of time, it is possible to minimize consumption of the battery mounted in the vehicle. If either the instantaneous calling means or transferring means is provided, transmitting and receiving of a message can be performed even if an operator is not present.

Fig. 12 illustrates a fifth preferred embodiment in which the main body 392 of the wireless device of the mobile telephone device to be installed in the vehicle 19 shown in Fig. 11 and the handset 393 are connected by a wireless communication link. In this figure, 315a denotes a CPU at the main body, 316 a memory which CP---U 315a at the main body uses, 315b a CPU at the handset, 380a and 380b cordless transmitting and receiving devices (simplified wireless means) for receiving a voice signal 1 between each of the voice signal processing portions 358a and 358b and a control signal between CPU 315a and 315b by using a frequency signal (a third high frequency wave of the cordless telephone set between CPU 380a. and 380b at the handset, 381a an antenna (a simplified wireless antenna) for a cordless telephone frequency (the third high frequency wave) arranged in the main body 392 of the wireless machine, 381b an antenna for receiving a paging frequency signal (a second high frequency wave) arranged In the handset and a cordless telephone frequency (antenna at the handset), and 361 a battery for the handset 393 (a power supplying means at the handset). Other elements are the same as those indicated in Fig.

Eerred 10 with the same reference numerals. In this pref embodiment, the paging signal is received at the handset 393.

The operation of the mobile telephone device is the same as that of the mobile telephone device shown in Frig. 10 except that the paging signal is received at the handset 393 and that receiving of the signal between the main body 392 of the wireless device and the handset 393 is carried out in a wireless manner. That is to say, a control can be performed through either the instantaneous calling means or the transferring means in the same manner as that of the fourth preferred embodiment. With such an arrangement described above, it is possible not only to prevent a consumption of the "external battery" of the car and the battery 361, but also to take the I-.

1k is handset 393 out of the vehicle within a range where an electromagnetic wave of the cordless telephone can reach in order to communicate with the main bqjdy portioni-- Power supply control part 362a is similar to part 162 of Fig. 5B and selectively applies power to parts 354, 355, 356, 357, 320, 358a during calling (talk) time, but not during standby time. Likewise, part 362b is similar to part 162 of Fig. 5B and selectively applies power to parts 380b, 358b, 359, 360, 363 during calling (talk) time, but not during standby time.

A sixth embodiment of the present invent-Lon illustrated in Fig. 13.

is The embodiments in Figs. 5-12 show integrated-type st-ruct-U-res, but Fig. 13 shows a separate-type structure. In Fig. 13, reference numeral 100 depicts a portable telephone device and 200 denotes a paging receiver. The main structure of Fig. 13 is similar to that of Figs. 2 and 4, like parts being Indicated by like reference numerals, except 162, 170 and 270 are additional parts. Reference numeral 162 illustrates the power control part as shown in Fig. 5B and 170, 270 depic"C serial data input/output parts, respectively. Further, reference numeral 171 denotes a cable for connecting the serial data input/output parts 170 and 270.

The operation of the device in Fig. 13 will now be described.

The portable telephone device 100 is connected with the paging device 200 via the serial data input/output parts 270, 170 by means of the connecting cable 171 and thereby the power supply turns on and is supplied only to the paging device. The following data communication and control can be performed between the portable telephone device 100 and paging receiver 200 via the serial data input/output parts.

k.

21 PAGI11G RECEIVER is PORTABLE TELEPHONE DEVICE RECEPTION OF PAGI:'G SIGNAL DISPLAY OF RECEI7ED SIGITAL ASCERTAINMENT OF CONNECTION RESPONSE TO CONNECTION TRANSFER OF RECEIVED SIGNAL RESPONSE FOR ASCERTAINMENT OF RECEPTION IF TELEPHONE NUMBER, POWER SUPPLY OF RADIO PART TURN ON BELL RING, WAITING FOP, KEY INPUT REPETITION It should be understood that the system of Fig. 13 may also include a voice responding part (synthetic voice generator) within housing 100 connected in the sane manner as part 320 of Fig. 12.

The CPUs in all embodiments of the present invention may be one chip 8 bit CPUs, model no. M50747, manufactured by Mitsubishi Electric Corp.

The "voice signal processing" parts of eac.ft embodiment may be a digital and analog composite IC-MOS, model no. RKS-5PG6029-001, manufactured by Mitsubisn;. Electric Corp.

It should be understood that the system of vh.e present invention may be modified as would occur to one of ordinary skill in the art without departing from #,,.e spirit and scope of the present invention.

22

Claims

A mobile telephone device comprising: antenna means for receiving and transmitting high frequency communication signals:

appritor Inputloutput mogns ror enablinci an operator to input data or voice communications into said telephone device or receive data or voice communications from the device, said input/output means including, means for generating a standby signal for initiating a call waiting period in which the telephone device can receive incoming calls, and means for generating a transmit signal for initiating a voice transmission period in which the talephone device can transmit and receive voice and data communications; control means connected to said operztor input/output means for receiving said standby and transmit signals to place said telephone device in either standby or voice transmission =odes, respectively; first signal processor means for receiving and transmitting voice and data communication signals from and to the antenna means, and transporr-ing said voice and data communication signals between the antenna means -and the control means, said first signal processor means having a first power consumption level when energized by electrical power; second signal processor means for receiving data communication signals of incoming calls from the antennae and transporting the data communication signals from the antennae to the control- means, said second signal processor means having a second power consumption level when energized by electrical power which is lower than the first power consumption level of the first processor means; and power supply means for energizing the telephone device with electrical power.

23 2. The mobile telephone device of claim 1 wherein said control means includes: phone number identification means for analyzing the data communication signals of incoming calls processed by said second signal processor means and identifying a telephone number of a calling party that made the incoming call; memory means for storing the telephone number of the calling party; and readout means for retrieving the telephone number of the calling party from the memory means, and applying the number to said first signal processor means during the voice transmission made responsive to the generation of a transmit signal from said operator input/output means in order --a initiate a return call to the calling party.

3. The mobile telephone device of claim 2 wherein said operator input/output means includes: display means for displaying the identification of the calling party identified by the control means and stored in the memory means.

4. The mobile telephone device of claim 1 wherein said operator input/output means includes: display means for displaying message data contained in incoming calls processed by said second signal processor means.

24 5. The mobile telephone device of claim 1 further comprising:

5yntnttiC VOiM generator means for generating selected voice messages and applying said messages to said first signal processor means; and means within the control means for detecting the receipt of an incoming call and automatically outputting a transmit signal from said control means if a transmit signal has not been generated by said operator input/output means within a predetermined time of receipt of an incoming call, said transmit signal output from said control means placing the telephone device in a voice transmission mode and causing the transmission of a selected voice message from the synthetic voice generator means via the first signal processor means to the calling party.

6. The mobile telephone device of claim 2 further comprising:

synthetic voice generator meant for generating selected voice messages and applying said messages to said first signal processor means; and means within the control means for detecting the receipt of an incoming call and automatically outputting a transmit signal from said control means if a transmit signal has not been generated by said operator input/output means within a predetermined time of receipt of an incoming call, said transmit signal output from said control means placing the telephone device in a voice transmission mode and causing the transmission of a selected voice message from the synthetic voice generator means via the first signal processor means to the calling party.

7. The mobile telephone device of claim 1 further comprising:

synthetic voice generator meanq. for -gerwrating selected voice messages and applying said messages to said first signal processor means; said control means including, phone number identification means for analyzing the data communication signals of incoming calls processed by said second signal processor means and identifying a telephone number of a calling party that made the incoming call; said operator input/output means including means er telephone number to which -or inputting a transf incoming call data can be transferred; memory means for storing the calling party's telephone number and the transfer telephone number to which said incoming call data can be transferred; and readout means for retrieving both the calling party and transfer telephone numbers from the memory means; said control means applying signals retrieved by the readout means related to the calling party's telephone number to said synthetic voice generating means in order to apply synthetic voice signals, capable of enunciating the calling party's telephone number, to said first signal processor means; said control means also applying signals retrieved by said readout means related to said transfer telephone number to said first signal processor means in order to initiate voice communication to a remote telephone device having said transfer telephone number, said communication including synthetic voice enunciation at the remote t L-elephone device of the calling party's telephone number.

26 8. The mobile telephone device of claim 7, wherein said control means also causes said synthetic voice generator means to apply selected valce mess-ages in addition to the calling party's telephcne number to said first signal processor means.

9. A mobile telephone device according to claim I wherein said second signal processor means commrises a filter for extracting the high frequency signals received by said antenna means, means JLor z:onverting -zhe output signal of the filter to a base band signal and demodulator means for converting said base band signal into a digital signal and outputting said digital signal to said control means.

10. A mobile telephone device according to claim 1 in which a ringing element connected to said control means is provided and the control means includes ringing means for driving said ringing element either until said transmit signal is inputted or for a smecified period of time.

27 11. A mobile telephone device according to claim 5 in which the synthetic voice generating means includes ROM having data coded with a voice message and a demodulation LSI for demodulating the coded data within the ROM into a voice signal.

12. A mobile telephone device according to claim 1 in which the control means is a microprocesso containing a central processing device and a memory fo storing said calling party's telephone number.

A communication system comprising:

A mobile telephone device included in a housing containing, a first transmitting signals; operator input/output means for enabling an operator to input data or voice communications into said telephone device or receive data or voice communications from the device, said input/output means including; means for generating a standby signal for initiating a call waiting period in which the telephone device can receive incoming calls; means for generating a transmit signal for initiating a voice transmission period in which the telephone device can transmit and receive voice and data communications; first control means connected to said operator input/output means for receiving said antenna for receiving and high frequency communication 28 standby and transmit signals to place said telephone device in either sitandby or voice transmission modes, respectively; first signal processor means for receiving and transmitting voice and data communication signals from and to the firsit antenna, and transporting said voice and data communication signals between the first antenna and the first control means, said first signal processor means having a first power consumption level when energized by electrical mower; first data input/output means for feeding data into and out of said common housing to and from said -first control means; and power supply means for energizing the telephone device with electrical power; a separate receiver device housing containing, a second antenna for receiving high frequency communication signals; second signal processor means for receiving data communication signals of incoming calls from the second antenna and transporting the data communication signals fron, '%he antenna to a second control means in the receiver device housing, said second signal processor means 1 29 having a second power consumption level when energized by electrical power which is lower than the first power consumption level Zf the first processor means; second power supply means for supplying electrical power to said second signal processor means; and second data input/output means connected to said first input/output data means and said second control means.

14. The communication system of claim 13 wherein said first and second control means includes: phone number identification means for analyzing the data communication signals of incoring calls processed by second signal processor means and identifying a telephone number of a calling party that made the incoming call; memory means for storing the telephone number of the calling party; and readout means for retrieving the telephone number of the calling party from the memory means, and applying the number to said first signal processor means during the voice transmission mode responsive to the generation of a transmit signal from said operator input/output means in order to initiate a return call to the calling party.

15. The communication system of claim 14 wherein said operator input/output means includes: display means for displaying the identification of the calling party identified by the first control means and stored in the memory means associated therewith- 16. The communication system of claim 13 wherein said operator input/output means includes: - v.

display means for displaying message data contained in incoming calls processed by said second signal processor means.

17. The communication system of claim 13 further comprising: synthetic voice generator means for generating selected voice messages and applying said messages to said first signal processor means; and means within the first control means for detecting the receipt of an incoming call and automatically outputting a transmit signal to said control means if a transmit signal has not been generated by said operator input/output means within a predetermined time of receipt of an incoming call, said transmit signal -output from said control means placing the telephone device in a voice transmission mode and causing the transmission of a selected voice message from the synthetic voice generator means via the first signal processor means to the calling party.

18. The--communication system of claim comprising: synthetic voice generator means for generating selected voice messages and applying said messages to said first signal processor means; and means within the first control means for detecting the receipt of an incoming call and automatically outputting a transmit signal to said control means if a transmit signal has not been generated by said operator input/output means within a predetermined time of receipt 14 fur-..'.-&er 1 of an incoming call, said transmit signal output from f irst control means placing the telephone device in a voice transmission mode and causing thd7'transmission of a selected voice message from the synthetic voice generator means via said first signal processor means to the calling party.

19. The "communication system of claim 13 further comprising: synthetic voice generator means for generating selected voice messages and applying said messages to said first signal processor means; said first control means including, phone nurnber identification means for analyzIng the data communication signals of incoming calls processed by said second signal processor means and identifying a telephcne number of a calling party that made t he incoming call; said operator input/output means including means for inputting a telephone number into which incoming call data can be transferred; memory means for storing the calling party's telephone number and the number to which said incoming call data can be transferred; and readout means for retrieving both the call -ng party and transfer telephone numbers from tne memory means; said first control means applying signals retrieved f rom the readout means related to t!-ie calling party's telephone number to said synthetic voice generating means in order I.-o apply synthetic voice signals, capable of 32 enunciating the callina Party,g telep6one number, to said first signal processor means; said first control means,. also-app-lying signals retrieved by said readout means related to said transfer telephone number to said first signal processor means in order to initiate voice communication to a remote telephone device having said transfer telephone number, said communication including synthetic voice enunciation at the remote telephone device of the calling party's telephone number.

20. The communication system of claim 19 wherein said,first control means also causes said synthetic voice generator means to apply selected voice messages in addition to the calling party' s telephone number to said first sJ1.anal processor means.

21. A communication system according to claim 13 wherein said second signal processing means comprises a filter for extrac-k-ing the high frequency signals received by said antenna means, means for converting the output I L- signal of the -Eilter to a base band signal and demodulator means for converting said base band signal 33 into a digital signal and outputting said digital signal to said control means.

22. A communication system according to claim lJ in which a ringing element connected to said control means is provided and the control means includes ringing means for driving said ringing element either until said transmit signal is inputted or for a specified period of time.

23. A nobile telephone device according to claim 177 in which the synthetic voice generating means includes ROM -a coded with a voice message and a demodulation having dall. L51 for demodulating the coded data within the ROM into a voice signal.

24. A communication system according to claim I' in which the control means is a microprocessor containing a central processing device and a memory for storing said calling party's telephone number.

25. A mobile telephone device comprising:

antenna means for receiving and transmitting high frequency communication signals; control means for processing signals related to the communication signals; 34 first signal processor means for receiving and transmitting voice and data communication signals from and to the antenna means, and transporting satd voice- and,data communication signals between the antenna and the control means, said f irst signal processor means having a f irst power consumption level when energized by electrical power; receiver means f or receiving incoming call data signals from the antenna means from a calling party and transporting the data communication signals from the antenna means to the control means, said recei,--r means havincg a second power consumption level when energized by electrical mower which is lower than the first power consumption level of the first signal Processor means; and power supply means for energizing the telephone device with electrical power.

26. The mobile telephone device of claim 25 wherein said control means includes: phone number identification means for analyzing the data communication signals of incoming calls processed by said receiver means and identifying a telephone number of a calling party that made the incoming call; memory means for staring the telephone number of the calling party; and readout means for retrieving the telephone number of the calling party from the memory means, and applying the number to said first, signal receiver means in order to initiate a return call to the calling party.

4 27. The mobile telephone device of claim 26 wherein said control means includes:

display means for displaying the identifica-zion of the calling party identified by the and stored in the memory means.

2. The mobile Itelephone device of claim 25 wherein said control means includes: display means for displaying message data contained in incoming calls processed by said receiver means.

2 91. A mobile telePhone device according to claim 25 wherein said receiver means comprises a filter for extracting the high frequency -signals received by said antenna iTecans, for converting the output signal t "er 4 4 he f ilt I-o a base band signal and demodulator means tal for converting said base band signal into a digit signal and outputting said digital signal to said conzrol means.

"i,o. A mobile telephone device according to claim 2-E in which a ringing element connected to said con=rol means is mrovided and the control means includes ringing means for driving said ringing element for a speci-2.--d Dericd of time.

36 1-- 31. A mobile telephone device comprising: antenna means for receiving and transmitting high frequency communication signals; control means for processing signals related to the communications signals; first signal processor means for --ece-ivJng and transmitting voice and data communication signals from and to the antenna T,,.eans, and. transporting said.,oice and da-la communication signals between the ant enna means and the cor.r-ro means, said first signa.31. processormeans having a first power consumption level when energized by elect-rical power; paging signal channel means for receiving paging signals within incoming calls lErci-. the antenna means and t rom the 1.ransporting the data communication signals f.

antenna means to the conrrol means, said paging signal channel means having a second power consumption level when energized by electrical Dower which is lower than the f power consumption level of the first signal processor Lirst means; and Dower supply means for energizing the telephone CeVICe W.4Lth electrical Dower 37 32. The mobile telephone device of claim 31 wherein said control means includes:

phone number identification means for anal.yzipg the z. paging signals of incoming calls received by said paging signal channel means and identifying a telephone number of a calling par-ty that made the incoming call; memory means for storing the telephone number of the callina party; and re-adou.IL-- means for retrieving the telephone number of the callina party from the memory means and applying the nt,,:7,be-r to said first signal o,-ceessor means in order to -in-'----ate a return call to the calling party.

f claim 32 wherein said The mobile telerhcne device of cont-roll -,,-ieans includes:

display means for displaying the identi--:ication 4 of the calling party identified by the control means and stored in the memory means.

The mobile telephone device of claim 31 where-ln said control means includes:

tained disp-lay means for displaying message data cont in incoming calls processed by said paging signal channel means.

38 35. A mobile telephone device according to claim 31 wherein said paging signal channel means comprises a filter for extracting the high frequency signals received by said antenna means, means for converting the output signal of the filter to a base band signal and demodulator means for converting said base band signal into a digital signal and outputting said digital signal to said control means.

36. A mobile telephone device according 1 claim 31 V-0 in which a ringing element connected tc said control means is provided and the control means includes ringing means for driving said ringing element for a specified period of time.