GB2177572A - Mobile radiotelephone systems - Google Patents
Mobile radiotelephone systems Download PDFInfo
- Publication number
- GB2177572A GB2177572A GB08615815A GB8615815A GB2177572A GB 2177572 A GB2177572 A GB 2177572A GB 08615815 A GB08615815 A GB 08615815A GB 8615815 A GB8615815 A GB 8615815A GB 2177572 A GB2177572 A GB 2177572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmitter
- data
- tru
- receiver unit
- modem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method of automatically controlling signal reception in a mobile radiophone apparatus for data communication having an automatic receiving function, comprises the steps of: (1) setting the mobile radiophone apparatus to an automatic receiving mode by making use of automatic receiving mode set information inputted through an operating port of a control unit (10); (2) delivering, after detecting a call intended for itself with the aid of a transmitter/receiver unit (8), a receiving indication signal including an indication for the automatic receiving mode to the data modem (3); (3) establishing a link between the modem circuit and the data terminal, and thereafter disconnecting the connection through the audio line between the transmitter/receiver unit (8) and the control unit (10) and connecting the transmitter/receiver unit (8) with the modem circuit, and thereafter delivering an answer tone signal to the transmitter/receiver unit (8); and starting to receive the data from a calling party in the transmitter/receiver unit (8) and delivering the data to the data terminal. The mobile radiophone apparatus can automatically process received data even if an operator is absent, or even in a case where the operator cannot let go his hold of a handle. <IMAGE>
Description
SPECIFICATION
Method of automatically controlling signal reception in mobile radiophone apparatus
The present invention relates to a method of automatically controlling signal reception in a mobile radiophone apparatus ofthe type used in data communication.
A mobile 'phone system has already been put on a commercial base in America, Europe, and Japan, etc., and data communication by mobile radio has also been put into practical use.
Acurrent mobile 'phone system must arrange an operator on both sides of a mobile unit and a land station respectively. Therefore, the system cannot answer any incoming signal when the operator is away from the mobile unit or in operation of a mobile unit in an area where it is dangerous to let go his hold of a handle.
The automatic receiving function itself has already been widely employed in facsimile. Namely, when there is any call in from a calling party, receiving processing is automatically effected for data transmission even if no operator is present on the receiving side.
However, there is no mobile radiophone apparatus having such an automatic receiving function at present. Accordingly, known mobile radiophone apparatus cannot automatically process incoming data when no operator is present.
In view of the drawbacks with the conventional mobile radiophone apparatus, the present invention seeks to provide, in effecting data communication using a mobile radiophone apparatus such as in an automobile, an automatic receiving control method ofthe mobile radiophone apparatus capable of automatically receiving data even underthe condition that no operator is present on the side of the mobile radiophone apparatus orthe operator cannot let go his hold of a handle.
According to the invention there is provided a method of automatically controlling signal reception in a mobile radiophone apparatus, said mobile radiophone apparatus comprising:
(a) a transmitter/receiver unit (TRU) composed of a transmitting part, a receiving part, and a control processor;
(b) a control unit (CU) composed of an operating part, a handset, an audio signal amplifier part, and a control processor; and
(c) a data modem composed of a modem circuit, a control processor, and a changeover switch, said data modem being connected with said transmitter/receiver unit (TRU) and said control unit (CU) via an I/O partthrough a bus linewhile furthermore being connected with said modem circuit, said transmitter/receiver unit (TRU), and said control unit (CU),via said changeover switch through an audio line, said method of automatically controlling signal reception comprising the steps of::
(1) receiving automatic receiving mode set
information inputted through said operating part of said control unit (CU) andtherebysetting the transmitter/receiver unit (TRU) to an automatic receiving mode;
(2) receiving page information transmitted from a cell site through said transmitter/receiver unit for detecting calls intended for itself, and thereafter delivering a receiving indication signal including an indication of the automatic receiving mode to said data modem part;;
(3) receiving said receiving indication signal including the indication of the automatic receiving mode in said data modem part and thereby delivering a hook signal to said transmitter/receiver unit (TRU) to establish a linkbetweensaid modem partandthe data terminal, subject to data termination, and then disconnecting the connection through the audio line between said transmitter/receiver unit (TRU) and said control unit (CU) by means of said changeover switch and connecting said transmitter/receiver unit (TRU) with the modem circuit ofthe data modem, and in succession delivering an answertone signal to said transmitter/receiving unit (TRU); and
(4) starting to receive data from a calling party after receiving said answer tone signal in said transmitter/receiver unit (TRU) and delivering said data to said terminal to which the connection has already been established via the data modem.
In orderthatthe invention may be better understood the method of the invention will be explained by way of example with reference to the accompanying drawings in which:
Figure lisa schematical view illustrating a mobile radio data communication system; Figure2 is a block diagram illustrating a mobile radiophone apparatus on the mobile side; and
Figure 3 is a view illustrating a procedure for automatic data reception in the mobile radiophone apparatus.
Let us describe here an automatic terminating control method of a mobile radiophone apparatus with reference to the accompanying drawings. In the drawings, designated at lisa computer, 2 is a telephone set, 3 is a data modem on the land side, 4 is a Public Switching Telephone Network (PSTU), 5 is a
Mobile Telecommunication Switching Office (MTSO), 6 is a cell site, 7 is a mobile radiophone apparatus, 8 is a mobile phone transmitter/receiver unit (TRU), 9 is a data modem on the mobile side, 10 is a control unit (CU), and 11 is a data terminal for effecting data transmission between the control unit (CU) and the computer 1. Items 1 to 6 are located on the land side, while items 8to 11 are carried on the mobile apparatus 7.An outline of the data communication between the computer 1 on the land side and theterminal on the mobile apparatus 7 is as follows. Any data from the computer 1 is delivered to the data modem 3 in a block unit, and is subjected there to error correction encoding before being delivered to the PSTU 4. The data is furthermore received by the mobile 'phone transmitter/receiver unit (TRU) 8 of the mobile apparatus 7 via the MTSO 5 and the cell site 6through a radio link. The received data is subjected to such processing as decoding etc., through the data modem 9, and transferred to the data terminal 1 1.The mobile radiophone apparatus 7 is adapted to automatically effect such receiving processing, which will now be described with reference to Figure 2.
Figure 2 is a block diagram of an embodiment of a mobile radiophone apparatus with an automatic receiving function according to the present invention.
The mobile 'phonetransmitter/receiver unit (TRU) 8 is a full duplex system, and comprises a receiving part 81, a control processor83, an l/Oport84,and duplexer85 for transmitting/receiving any signal. The receiving part 81 consists ofan RFamplifier8l 1 for amplifying a received signal from the antenna system,a mixer8l2and Iocaloscillator8l3for frequency-converting the amplified signal, an IF (intermediatefrequency) amplifier 814 (including a limiter and a discriminator) for amplifying the output of the mixer 812, an AF (audio frequency) amplifier 815foramplifyingtheoutputofthe IFamplifier814to the required level.In addition, the transmitting part 82 being known, consists of an audio frequency amplifier part, an oscillator part, a modulator part, a multiplying part, and a power amplifier.
The control processor 83, which functions to control the whole ofthe TRU 8, comprises a CPU 831, an address latch 832, a RAM 833, and a ROM 834.
Moreover, the I/O port 84 servesto transmit and receive any data between the control unit(CU) 10 and the data modem 9 via a bus B.
The data modem 9 consists of an I/O port 91, a control processor 92, a switch 93, a modem circuit 94, and a RS-232C interface port 95. The data modem 9 is adapted to demodulate and decode any data from the
TRU 8, and deliver into the data terminal 11, and to modulate any data from the data terminal 11 and deliver itto the TRU 8. The RS-232c interface port 95 connects the data terminal 11 and the data modem 9 with each other. TheTRU8andthe control unit(CU) 10 are connected with each othervia a signal linet1,a switch 93, and a signal line e 2.Any data received by the TRU 8 is transferred to the modern circuit 94 via the signal line e 1 and the switch 93, demodulated, and delivered to a RAM 923, forming partofthe control processor 92. The CPU 921 within the control processor 92, after effecting such processing as decoding, etc., on the stored data, delivers itto the data terminal 11 via the RS-232c-interface port 95.
Furthermore, the control unit (CU) 10 corresponds to a handset port and a handset housing part, and includes an AF amplifier 101 for amplifying an audio frequency signal, an I/O port 103, a control processor 102, a dial key and key switches 104forfunction keys, and a handset, etc. The CU 10 is connected by the I/O port 103totheTRU 8 and the data modem 9viathe bus B, and further connected with the data modem 9 via audio signal line t2 and also with the TRU 8 via the switch 93 and audio signal line t1. Voice communication with this arrangement can be effected bydelivering an audio signal received by the TRU 8tothe CU 10viathesignal lines and C2 and doing the same through the opposite route.Data communication can be effected by changing overthe switch 93 ofthe data modem 9, connecting the signal line t1 with the modem circuit 94, and disconnecting the signal lines t1 and t2 from each other.
Let us now describe the automatic receiving function ofthe mobile radio 'phone apparatus with reference to operation flow charts of Figures 2 and 3.
First, afterturning on the power source of the mobile radio 'phone apparatus, a predetermined automatic receiving mode set information is inputted from the key switch 104 of the CU 10 (dial key or function key) (Figure 3 S1). The automatic receiving set information informed by combining figures, characters, and symbols with each other. The automatic receiving set information so inputted is, after being recognised bythecontrol processor 102 and encoded, delivered to the TRU 8 via the I/O port 103 and the bus B. The TRU 8 recognisesthe automatic receiving mode set information sentfrom the central processor 83 and thereby sets itselfto the automatic receiving mode (Figure 3 S2).The mode setting is effected by setting specification data to a specific address within the RAM 833. The TRU 8 waits for any answer in this automatic receiving mode.
The TRU 8 successively selects and monitors a page channel, and receives page information transmitted from the cell site 6 in succession to extractthe identification number of the mobile unit concerned in order to investigate whether or notthe call is for itself. Recognising the page information as being intended for itself, the TRU 8 delivers the received signal to the CU 10 via the signal line t1, switch 93, and signal linet2 (Figure 3 S3).The CU 10 thereby activates a ringer (not shown) to provide a ringing tone (Figure 3 S4). Simultaneously, the TRU 8 transfers a receiving indication signal for informing the operator ofthe presence of reception (including also an indication ofthe automatic receiving mode) to the data modem 9 via the bus B (Figure 3 S5).The data modem, normally in an idle state, enters into a data communication mode by recognising the receiving indication signal to startthe automatic receiving operation. Namely, when the control processor 92 of the data modem 9 recognisesthe receiving indication signal, it sets itself to the automatic receiving mode (set specific data to a specified address within the
RAM 923) (Figure3 S6),andthen delivers a hook signal to the TRU 8 (this being a signal corresponding to a handset off-hook signal in voice communication) (Figure 3S7).In succession,the control processor 92 establishes a linkforthe data terminal 11 with a prescribed procedure via the RS-232c interface port part (Figure 3S8), and thereafter changes over the switch 93, disconnects the connection between the signal lines t1 and t2, and connects the signal line 41 to the modem circuit 94 (Figure 3S9). Hereby, the ringer of the CU 10 is interrupted (Figure3 S10).The numberoftimesof ringing ofthe ringeristwo inthe present embodiment, but it can freely be set in the control processor 92 of the data modem 9.
Having completed a number of these sequences, an answertone signal is transmitted from the data modem 9totheTRU 8 (Figure 3 S11). The signal is an audio signal and is transmitted to the transmitting part 82 via the signal line t1. Waiting the answertone signal, the TRU 8 starts to receive data from the calling party, and delivers the received data from the receiving part 81 to the modem circuit of the data modem 9 via the signal line t1 (Figure 3 S12).The data modem 9 demodulates the received data in the modem circuit, and the control processor 92 subjects itto such processing as decoding and delivers it to the data terminal 11 (Figure3S13).
Although the automatic receiving function ofthe mobile radiophone according to the present invention is as described above, it goes without saying that the present mobile radiophone apparatus not only has an aautomatic receiving function but also functions of receiving and originating respectively in voice communication and data communication. Moreover, forthe data terminal 11, computers, data terminals, printers, and facsimiles, etc., can be employed.
According to the present invention, as described above, the present mobile radiophone apparatus with an automatic receiving function can receive any information from a distant side even if an operator is temporarily away from the mobile telephone set or even in a case where it is difficultforthe operatorto operate the mobile telephone set.
Furthermore, the method of automatically controlling receiving according to the present invention can be applied not only to public mobile 'phones bu to multichannel access (MCA) radio and personal radio, etc.
Claims (5)
1. A method of automatically controlling signal reception in a mobile radiophone apparatus, said mobile radiophone apparatus comprising:
(a) a transmitter/receiver unit (TRU) (8) composed of a transmitting part (82), a receiving part (81), and a control processor (83);
(b) a control unit (CU) (10) composed of an operating part, a handset (2), an audio signal amplifier part, and a control processor; and
(c) a data modem (3) composed of a modem circuit, a control processor, and a changeover switch (93), said data modem (3) being connected with said transmitter/receiver unit (TRU) (8) and said control
unit (CU) (10) via an I/O part (84) through a bus line while furthermore being connected with said modem circuit (94), said transmitter/receiver unit (TRU) (8), and said control unit (CU) (10), via said changeover switch (9) through an audio line, said method of
automatically controlling signal reception
comprising the steps of::
(1) receiving automatic receiving mode set
information inputted through said operating part of
said control unit (CU) (10) and therebysettingthe transmitter/receiver unit (TRU) (8) to an automatic
receiving mode;
(2) receiving page information transmitted from a
cell site (6) through said transmitter/receiver unit (8)
for detecting calls intended for itself, and thereafter
delivering a receiving indication signal including an
indication of the automatic receiving mode to said
data modem part(9);;
(3) receiving said receiving indication signal
including the indication ofthe automatic receiving
mode in said data modem part(9) and thereby
delivering a hook signal to said transmitter/receiver
unit(TRU) (8) to establish a link between said modem
part (9) and the data terminal (11), subject to data
termination, and then disconnecting the connection
through the audio line between said transmitter/receiver unit (TRU) (8) and said control unit (CU) (10) by means of said changeoverswitch (9) and connecting said transmitter/receiver unit (TRU) (8) with the modem circuit (94) of the data modem (3), and in succession delivering an answertone signal to said transmitter/receiving unit (TRU) (8); and
(4) starting to receive data from a ca 11 i ng party after receiving said answertone signal in said transmitter/receiver unit (TRU) (8) and delivering said data to said terminal (11 to which the connection has already been established via the data modem (3).
2. A method according to claim 1 wherein automatic receiving mode set information is prepared by combining figures, characters, and symbols with each other, said figures, characters and symbols being inputted through a dial key orfunction key of the operating part of the control unit (CU) (10).
3. Amethod according to claim 1 wherein the automatic receiving mode set information from the control unit (CU) (10) is received, and specific information is stored at a specific address of a memory part of the control processor of the transmitter/receiver unit (TRU) (8), and therebythe mobile radiophone apparatus is set to the automatic receiving mode.
4. A method according to claim 1 wherein a ringer is activated in the control unit upon reception of a signal, and is stopped by disconnecting the connection through the audio line between the transmitter/receiver unit (TRU) (8) and the control unit (CU) (10) by means of the changeover switch (9) ofthe data modem part (3).
5. A method of automatically controlling signal reception in a mobile radiophone apparatus, as claimed in claim 1, substantially as hereinbefore described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60141539A JPS623532A (en) | 1985-06-29 | 1985-06-29 | Automatic incoming system of mobile radiotelephony |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8615815D0 GB8615815D0 (en) | 1986-08-06 |
GB2177572A true GB2177572A (en) | 1987-01-21 |
GB2177572B GB2177572B (en) | 1989-08-09 |
Family
ID=15294320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8615815A Expired GB2177572B (en) | 1985-06-29 | 1986-06-27 | Method of automatically controlling signal reception in mobil radiophone apparatus |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS623532A (en) |
GB (1) | GB2177572B (en) |
SE (1) | SE8602863L (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2616023A1 (en) * | 1987-05-27 | 1988-12-02 | Imerval Sa | DATA TRANSMISSION ASSEMBLIES BETWEEN VEHICLES AND FIXED STATIONS |
US4823373A (en) * | 1986-10-16 | 1989-04-18 | Oki Electric Industry Co., Ltd. | Line switching control system for mobile communication |
EP0331610A2 (en) * | 1988-03-01 | 1989-09-06 | AEG MOBILE COMMUNICATION GmbH | Mobile radio-telephone |
GB2214755A (en) * | 1988-01-29 | 1989-09-06 | Walmore Electronics Limited | Distributed antenna system |
EP0362196A1 (en) * | 1987-05-05 | 1990-04-11 | POLANSKY, Ken | Interface device |
EP0399520A2 (en) * | 1989-05-24 | 1990-11-28 | Hitachi, Ltd. | A radio communication system |
US5251257A (en) * | 1990-09-12 | 1993-10-05 | Sharp Kabushiki Kaisha | 2-wire/3-wire converting apparatus |
WO1994014268A1 (en) * | 1992-12-04 | 1994-06-23 | Intercel Pty. Limited | Computer and modem interface |
GB2278753B (en) * | 1992-12-21 | 1997-06-04 | Motorola Inc | Facsimile transmission in an RF digital communication system |
US5657371A (en) * | 1993-02-01 | 1997-08-12 | Nokia Mobile Phones Limited | Connector assembly for a radio telephone and a computer |
USRE35736E (en) * | 1988-01-29 | 1998-02-24 | Allen Telecom Group, Inc. | Distributed antenna system |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63209330A (en) * | 1987-02-26 | 1988-08-30 | Oki Electric Ind Co Ltd | Automatic incoming system for automobile telephone set |
KR100266995B1 (en) * | 1998-04-24 | 2000-09-15 | 장수영 | Cap for protecting ultraviolet ray |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562747A (en) * | 1979-06-22 | 1981-01-13 | Nippon Telegr & Teleph Corp <Ntt> | Mobile radio unit |
JPS60128763A (en) * | 1983-12-16 | 1985-07-09 | Nippon Telegr & Teleph Corp <Ntt> | Automatic incoming system |
-
1985
- 1985-06-29 JP JP60141539A patent/JPS623532A/en active Granted
-
1986
- 1986-06-27 SE SE8602863A patent/SE8602863L/en not_active Application Discontinuation
- 1986-06-27 GB GB8615815A patent/GB2177572B/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4823373A (en) * | 1986-10-16 | 1989-04-18 | Oki Electric Industry Co., Ltd. | Line switching control system for mobile communication |
EP0362196A1 (en) * | 1987-05-05 | 1990-04-11 | POLANSKY, Ken | Interface device |
EP0362196A4 (en) * | 1987-05-05 | 1991-12-18 | Ken Polansky | Interface device |
EP0296905A1 (en) * | 1987-05-27 | 1988-12-28 | G7, Société Anonyme dite | Equipment for data transmission between vehicles and fixed stations |
FR2616023A1 (en) * | 1987-05-27 | 1988-12-02 | Imerval Sa | DATA TRANSMISSION ASSEMBLIES BETWEEN VEHICLES AND FIXED STATIONS |
GB2214755A (en) * | 1988-01-29 | 1989-09-06 | Walmore Electronics Limited | Distributed antenna system |
GB2214755B (en) * | 1988-01-29 | 1992-06-24 | Walmore Electronics Limited | Distributed antenna system |
USRE35736E (en) * | 1988-01-29 | 1998-02-24 | Allen Telecom Group, Inc. | Distributed antenna system |
EP0331610A3 (en) * | 1988-03-01 | 1991-06-12 | AEG MOBILE COMMUNICATION GmbH | Mobile radio-telephone |
EP0331610A2 (en) * | 1988-03-01 | 1989-09-06 | AEG MOBILE COMMUNICATION GmbH | Mobile radio-telephone |
EP0399520A2 (en) * | 1989-05-24 | 1990-11-28 | Hitachi, Ltd. | A radio communication system |
EP0399520A3 (en) * | 1989-05-24 | 1992-10-21 | Hitachi, Ltd. | A radio communication system |
US5251257A (en) * | 1990-09-12 | 1993-10-05 | Sharp Kabushiki Kaisha | 2-wire/3-wire converting apparatus |
WO1994014268A1 (en) * | 1992-12-04 | 1994-06-23 | Intercel Pty. Limited | Computer and modem interface |
GB2278753B (en) * | 1992-12-21 | 1997-06-04 | Motorola Inc | Facsimile transmission in an RF digital communication system |
US5657371A (en) * | 1993-02-01 | 1997-08-12 | Nokia Mobile Phones Limited | Connector assembly for a radio telephone and a computer |
Also Published As
Publication number | Publication date |
---|---|
GB8615815D0 (en) | 1986-08-06 |
SE8602863D0 (en) | 1986-06-27 |
GB2177572B (en) | 1989-08-09 |
JPS623532A (en) | 1987-01-09 |
SE8602863L (en) | 1986-12-30 |
JPH0414891B2 (en) | 1992-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030627 |