WO2007148905A1

WO2007148905A1 - Mobile phone with a communication module for autoconnection to pstn

Info

Publication number: WO2007148905A1
Application number: PCT/KR2007/002963
Authority: WO
Inventors: Dong-Sik Park
Original assignee: Wooritel
Priority date: 2006-06-22
Filing date: 2007-06-19
Publication date: 2007-12-27
Also published as: KR100701347B1

Abstract

The present invention relates to a mobile phone having a communication module built therein, for making the mobile phone automatically access a PSTN according to the present invention. The communication module is adapted to execute an access algorithm-driving step; a driver algorithm execution step; a call mode algorithm execution step; an input algorithm execution step; and a call algorithm execution step, so that a call is performed.

Description

MOBILE PHONE WITH A COMMUNICATION MODULE FOR

AUTOCONNECTION TO PSTN

Technical Field

[1] The present invention relates to a mobile phone having a communication module built therein, for making the phone automatically access a public switched telephone network(PSTN, or PSTN), and more particularly, to a mobile phone having a program built therein, for making the phone automatically access a PSTN, in which when the cover (the folder) of the mobile phone is opened, a built-in PSTN interlocking program is actuated to make the phone to automatically access the PSTN, so that the mobile phone can be used at a cheaper wired communication charge than a wireless communication charge only through the input of a counterpart telephone number. Background Art

[2] A communication charge of a common wireless communication system is more expensive than that of a wired communication system. For this reason, attempts have been made in which communication service providers employ a wireless communication method, but employ the PSTN that is relatively cheap in association with the PSTN.

[3] In these attempts, an additional external device (ACR) is mounted outside a mobile phone, or a mobile phone is connected to a PSTN by consciously inputting a special number.

[4] Further, as a known prior art, there was disclosed Korean Patent Application No.

10-2004-0013345 entitled "PSTN Access System of Mobile Phone". In this patent, an attempt was made to solve inconvenience of having to separately input an additional device or a special number in employing the PSTN.

[5] The above invention includes a communication controller, memory, an input unit, a display unit, and a transmit/receive unit to communicate with the communication controller. The communication controller or the memory determines whether a PSTN has been selected through an automatic access mode when the folder is opened or a communication mode is selected. If the automatic access mode is selected, an access number for gaining access to a switchboard is read from the memory, and it is then determined whether a key input corresponding to a counterpart telephone number has been completed. If the input of the telephone number is completed, the access number to the switchboard is sent through the transmit/receive unit. If access to the switchboard is completed after the access number is sent, a counterpart telephone number is sent, and it is then determined whether the counterpart mobile phone has been connected. If connection is successful, a call is carried out.

[6] In this known invention, in employing a wired communication network through a mobile phone, there is an advantage in that the mobile phone is naturally employed without consciously recognizing the wired communication network, but a call can be performed at a cheap wired telephone charge. However, there has not been disclosed a special communication module for connecting a mobile phone and a PSTN. Disclosure of Invention Technical Problem

[7] Accordingly, the present invention has been made an in an effort to solve the above problems occurring in the prior art, and an object of the present invention is to provide a communication algorithm, which is built in a mobile phone and makes the mobile phone automatically access a PSTN, and a communication module including the communication algorithm.

[8] Another object of the present invention is to employ a mobile phone at a cheaper wired communication charge than a wireless communication charge through only the input of a counterpart telephone number by using a mobile phone having the communication module built therein. Technical Solution

[9] To achieve the above objects, the present invention provides a mobile phone having a communication module built therein, for making the mobile phone automatically access a PSTN when a folder of the mobile phone is opened or a communication mode is selected through a keypad of the mobile phone, wherein the communication module is adapted to execute an access algorithm-driving step of, if the folder is opened, allowing the communication module to attempt access to the PSTN by repeatedly performing an access algorithm coded in a computer language; a driver algorithm execution step of, if a PSTN mode or a wireless communication mode is selected in the access algorithm-driving step, allowing the communication module to confirm a selected mode and drive a driver algorithm built in the communication module to communicate with the PSTN through the selected mode; a call mode algorithm execution step of allowing the communication module to convert the PSTN mode, which is selected through the driver algorithm performed in the driver algorithm execution step, into a call mode that can be recognized by a PSTN switchboard, and to send the converted mode to the PSTN switchboard; an input algorithm execution step of allowing the communication module to repeatedly determine whether the signal sent in the call mode algorithm execution step has been connected to the PSTN switchboard, and if, as a result of the determination, the signal has been connected to the PSTN switchboard, allowing a counterpart telephone number to be input through the keypad; and a call algorithm execution step of allowing the communication module to determine whether the signal sent in the input algorithm execution step has been connected to the counterpart, so that a call is performed. [10] In the input algorithm execution step, the call mode algorithm and the input algorithm are operated cooperatively, and then perform access to the communication mode by

[11] call.connect (DirectCallNumber + callMode + phone_number + "s");

[12] removeFirstRecord( );

[13] //end call ( ).

[14] Further, the call mode of the mobile phone is any one selected from "P", "p", "T", and "t". [15] Further, the above "s" includes application of one of "*" and "#" of keypads of a display unit.

Advantageous Effects

[16] The present invention provides a communication algorithm built in a mobile phone and configured to make the mobile phone automatically access a PSTN, and a communication module including the communication algorithm. Accordingly, there is an advantage in that a mobile phone can be employed at a cheaper wired communication charge than a wireless communication charge through only the input of a counterpart telephone number by using a mobile phone having the communication module built therein. Brief Description of the Drawings

[17] Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which:

[18] FIG. 1 is a schematic construction of a mobile phone in accordance with the present invention;

[19] FIG. 2 is a block diagram conceptually illustrating a process of automatically accessing a PSTN through a mobile phone having a communication module according to the present invention built therein;

[20] FIG. 3 shows an operating flowchart sequentially illustrating a process of automatically accessing a PSTN through a mobile phone having a communication module according to the present invention built therein; and

[21] FIG. 4 is a block diagram of FIG. 2.

[22] *Description on reference numerals*

[23] 10: transmit/receive system 20: control unit

[24] 30: memory 40: input unit [25] 50: display unit

[26] 60: calling party mobile phone

[27] 70: wireless base station

[28] 80: public switched telephone network(PSTN)

[29] 90: PSTN access switchboard

[30] 95: called party mobile phone

Mode for the Invention

[31] The present invention will now be described in detail in connection with specific embodiments with reference to the accompanying drawings. The same reference numerals were provided to the parts having same or similar function.

[32] FIG. 1 is a schematic construction of a mobile phone in accordance with the present invention. Referring to FIG. 1, the present invention includes a transmit/receive system 10, a control unit 20, memory 30, an input unit 40, a display unit 50 and so on.

[33] According to the present invention, a switchboard access number of a PSTN is automatically sent through a communication module built in the control unit 20 and the memory 30 of the mobile phone. A user can employ a PSTN by only inputting a counterpart telephone number. A conceptual invention thereof is disclosed and claimed in Korean Patent No. 0473909 assigned to the applicant of the present invention.

[34] The transmit/receive system 10 applicable to the present invention can employ a method that has been adopted and proposed by 3GPP, NTT DOCOMO, that is, a highspeed cell search algorithm applied to CDMA(code division multiple access) and W- CDMA(wideband-code division multiple access), or can employ a jump code highspeed cell search algorithm or a high-speed cell search algorithm using position modulation proposed by Shinsegi Communication Co.

[35] In the above algorithm, the transmit/receive system 10 includes an IF board including a filter, an intermediate frequency amplifier, a local oscillator, a mixer, etc. to detect a secondary intermediate frequency and a voice signal, a common circuit board including a transmit/receive hybrid circuit, a compressor, an extender and so on to separate and control a transmit/receive voice signal, an output amplifier to multiply and transform a frequency and amplify a voltage, a transmit/receive separator including a hybrid and a filter and configured to separate transmit and receive paths by a single antenna, and a frequency combiner including a transmission modulator, a receive VCO board, and a digital mixer to integrally control some functions, such as transmission modulation and reception demodulation.

[36] The control unit 20 includes the memory 30 having the communication module of the present invention built therein, the input unit 40, the control switch, the display unit 50, and interfaces with other transmit/receive systems 10. [37] FIG. 2 is a block diagram conceptually illustrating a process of automatically accessing a PSTN through a mobile phone having a communication module according to the present invention built therein.

[38] Referring to the block diagram of FIG. 2, the present invention includes, as basic constructions, a calling party mobile phone 60, a wireless base station 70, a PSTN 80, a PSTN access switchboard 90 and a called party mobile phone 95.

[39] The mobile phone 60 includes the above-described basic constructions. The wireless base station 70 (or a cell site or a base station) has a matching function of connecting the PSTN 80 or a wireless network for connecting the PSTN access switchboard 90 and the wireless base station 70 in order to connect the PSTN access switchboard 90 and the mobile phone (or a mobile unit) 60, 95.

[40] The PSTN access switchboard 90 has a switching function through reception and interconnection of communication lines, and has special functions of managing necessary information through consistent data exchange with the base station 70 while controlling wireless channel allocation and a call channel switch function, monitoring and analyzing call traffic per line period, and distributing and processing the call traffic according to the result.

[41] FIG. 3 shows an operating flowchart sequentially illustrating a process of automatically accessing a PSTN through a mobile phone having a communication module according to the present invention built therein.

[42] Referring to FIGS. 3 and 4, according to the present invention, wireless communication is performed through the calling party mobile phone 60, wherein communication is performed by using a PSTN 80 whose charge is relatively cheaper than that of a wireless network in association with the PSTN 80. If the folder is opened, the communication module repeatedly performs the access algorithm, which is coded in a computer language, in order to attempt access to the PSTN 80.

[43] For the above purpose, a program for executing the operation of FIG. 3 is built in the memory 30. The program is driven in association with the transmit/receive system 10 and the control unit 20 as the folder of the mobile phone is opened or shut or power of the mobile phone is turned on/off.

[44] The above process can be applied to all mobile phones having the communication module built therein, for making the mobile phones automatically access the PSTN 80 when the folder of the calling party mobile phone 60 is opened or the communication mode is selected through a keypad.

[45] The above process includes:

[46] an access algorithm-driving step (SlOO) of, if the folder of the mobile phone is open ed, allowing the communication module to attempt access to the PSTN by repeatedly performing the access algorithm coded in a computer language; [47] a driver algorithm execution step (S200) of, if the PSTN mode or the wireless communication mode is selected in the access algorithm-driving step (SlOO), allowing the communication module to confirm a selected mode, and drive the driver algorithm built therein to communicate with the PSTN through the selected mode;

[48] a call mode algorithm execution step (S300) of allowing the communication module to convert the PSTN mode, which is selected through the driver algorithm performed in the driver algorithm execution step (S200), into a call mode that can be recognized by the PSTN switchboard 90, and to send the converted mode to the PSTN switchboard;

[49] an input algorithm execution step (S400) of allowing the communication module to repeatedly determine whether the signal sent in the call mode algorithm execution step (S300) has been connected to the PSTN switchboard 90, and if it is determined that the signal has been connected to the PSTN switchboard 90, allowing a counterpart telephone number to be input through the keypad; and

[50] a call algorithm execution step (S500) of allowing the communication module to determine whether the signal sent in the input algorithm execution step (S400) has been connected to the counterpart, so that a call is performed.

[51] The access algorithm-driving step (SlOO) for performing the present invention is driven by a signal of a magnetic sensor installed the calling party mobile phone 60. Preferably, the magnetic sensor can consist of an optical sensor, a sensor employing an electric field or the like.

[52] In the above access algorithm-driving step (SlOO), as a method employing common event holing, the access algorithm is converted into the PSTN mode or the wireless telephone communication mode through the step consisting

[53] EVENT_HOOK_BEGIN

[54] EVENT_HOOK(ECLASS_KEY, EVT_KEY_SEND)

[55] EVENT_HOOK_END,

[56] and gains access to the PSTN 80, or can employ a standby screen or a phone theme comprising an algorithm as in the following embodiment driven by the sensor.

[57] public class S_WRT estends MIDlet implements CommandListener

[58] private Display display;

[59] private Command backCommand;

[60] private Command okCommand;

[61]

[62] private string DirectCallNember = "telephone number (a telephone number employing a PSTN)";

[63] private Canvas DcMainFrm_canvas; // main screen

[64] private List DcMainMenufrm_list; // main menu [65]

[66] public void commandAction(Command c, Displayable d)

[67] Device.setBacklinghtEnabled(false);

[68] BackLinght.on();

[69]

[70] The above algorithm can be written in various computer languages, and includes a variety of the following typical menus. At this time, a user can select any one service, preferably, a command to access the PSTN 80.

[71] In the driver algorithm execution step (S200), if the PSTN mode or the wireless communication mode is selected in the access algorithm-driving step (SlOO), the communication module drives the driver algorithm built therein and repeatedly request wired or wireless communication.

[72] This driver algorithm execution step (S200) is inseparably associated with the input algorithm execution step (S400), so that the communication module is accessed to the PSTN access switchboard 90 and uses the PSTN 80.

[73] In the call mode algorithm execution step (S300), the PSTN mode, which is selected through the driver algorithm performed in the driver algorithm execution step (S200), is converted into the call mode that can be recognized by the PSTN access switchboard 90.

[74] The call mode of the present invention is any one selected from parameters to specify an access characteristic of the mobile phone 60, such as "P", "p", "T", and "t". In the call mode algorithm execution step (S300), the parameters "P", "p", "T", and "t" of the mobile phone 60 are searched, and the driver algorithm is changed to an access mode that can be recognized by the PSTN access switchboard 90.

[75] At this time, "P", "p", "T", and "t", that is, the call mode of the present invention are abbreviations of "Pause" or "Time", and are set to be selected in the menu of mobile phone 60 that is typically fabricated and sold. For example, "P" and "p" are used in Samsung Electronic Co., "T" and "t" are generally used in LG Electronic Co., Motorola Inc., and Skyphone. Further, in the call mode, a call of a counterpart is called every 0.75 seconds.

[76]

[77] In the input algorithm execution step (S400), it is repeatedly determined whether the signal sent in the call mode algorithm execution step (S300) has been accessed to the PSTN switchboard 90. If, as a result of the determination, the signal has been accessed to the PSTN switchboard 90, a counterpart telephone number from the keypad of the input unit 40 is searched and inputted.

[78] At this time, the call mode algorithm execution step (S300) and the input algorithm execution step (S400) are performed by the following algorithm in which the call mode algorithm and the input algorithm are associated with each other: [79] call.connect (DirectCallNumber + callMode + phone_number + "s");

[80] removeFirstRecord();

[81] //end call ()

[82] [83] In the above algorithm, "DirectCallNumber" is a unique number, which is provided by a base communication company and can employ the PSTN 80. "callMode" is any one selected from the above parameters "P", "p", "T", and "t". "s" is used to specify the call mode algorithm or the input algorithm by using a special button such as "*" or "#", and to finish an input.

[84] This operation is performed in order of,

[85] List dcCallConfigModeList;

[86] Command dcCallConfigModeBackCommand = new Command("back"

Command.EXIT, 0); [87] Command dcCallConfigModeOkCommand = new Command("confirm"

CommandOK, 0); [88] String callMode="T"; //access mode is a parameter specified, and there are three access modes T, P, and p. [89]

[90] public void dcCallConfigChangeModeFrm()

[91] dcCallConfigModeList=new Listfchange access mode" List.EXCLUSIVE);;

[92]

[93] dcCallConfigModeList. append(" T mode" null);

[94] dcCallConfigModeList.append("P mode" null);

[95] dcCallConfigModeList.append("P mode" null);

[96]

[97] if( callMode.equals("T") )dcCallConfigModeList.setSelectedIndex( 0, true );

[98] else if( callMode.equals("P") )dcCallConfigModeList.setSelectedIndes( 1, true );

[99] else if( callMode.equals("p") )dcCallConfigModeList.setSelectedIndes( 2, true );

[100]

[101] dcCallConfigModeList. addCommand(dcCallConf igModeB ackCommand) ;

[ 102] dcCallConfigModeList. addCommand(dcCallConf igModeOkCommand) ;

[103] dcCallConfigModeList.setCommandListener()

[104] new CommandListenerO

[105] public void commandAction(Command c, Displayable d)

[106] if( c==dcCallConfigModeB ackCommand )//go to main nenu

[107] DcMainMenuFrmO;

[108] else if( c==dcCallConfigModeOkCommand )//check list and execute [ 109] int callMenuIndex=dcCallConfigModeList.getSelectedIndex() ;

[110] if( callMenuIndes==O ) // set access mode as T mode

[111] callMode="T";

[112] else if( callMenuIndex==l ) // set access mode as P mode

[113] callMode="P"

[114] else if( callMenuIndes==2 ) // set access mode as p mode

[115] callMode="p"

[116] try{

[117] setCallMode( callMode );

[118] Alert modeConfirmAlert = new Alert(" confirm access mode changed", "defined access mode"

[119] display . setCurrent(modeConfirmAlert) ;

[120] //DcMainMenuFrmO;

[121] } catch(Exception e) {

[122] //

[123] Alert modeErrAlert = new Alert("access mode error occurred", "erroneous access mode storage

[124] }

[125] }else{

[126] Alert_alert = new Alert("access mode change error occurred", "command not defined", null

[127] Display. setCurrent(_alert);

[128] }//end if

[129] }//end commandaction

[130] }

[131] }

[132] Further, if the above program is not being performed, access for typical wireless communication is performed again.

[133] It is determined whether the signal sent through the call mode algorithm execution step (S300) and the input algorithm execution step (S400) has been connected to a counterpart. The algorithm execution step (S500) of performing a call is then performed.

[134] That is, as clear from the above description, according to the present invention, cheap communication can be performed by employing a PSTN with only any one selected from PSTN association numbers "t","T","p", and "P"-a counterpart telephone number+"*", "#", and only a counterpart telephone number is simply displayed on a display window. Accordingly, there is an advantage in that user privacy can be increased. [135] Although the specific embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Industrial Applicability

[136] As described above, in accordance with a mobile phone having the communication module built therein, for making the mobile phone automatically access a PSTN according to the present invention, at the time of wireless communication employing the mobile phone, the mobile phone is automatically accessed to the PSTN. Thus, the mobile phone can be employed at a cheap wired communication charge by only inputting a counterpart telephone number. Accordingly, mobile phones can be used more economically.

Claims

[1] A mobile phone having a communication module built therein, for making the mobile phone automatically access a PSTN when a folder of the mobile phone is opened or a communication mode is selected through a keypad of the mobile phone, wherein the communication module is adapted to execute: an access algorithm-driving step of, if the folder is opened, allowing the communication module to attempt access to the PSTN by repeatedly performing an access algorithm coded in a computer language; a driver algorithm execution step of, if a PSTN mode or a wireless communication mode is selected in the access algorithm-driving step, allowing the communication module to confirm a selected mode and drive a driver algorithm built in the communication module to communicate with the PSTN through the selected mode; a call mode algorithm execution step of allowing the communication module to convert the PSTN mode, which is selected through the driver algorithm performed in the driver algorithm execution step, into a call mode that can be recognized by a PSTN switchboard, and to send the converted mode to the PSTN switchboard; an input algorithm execution step of allowing the communication module to repeatedly determine whether the signal sent in the call mode algorithm execution step has been connected to the PSTN switchboard, and if, as a result of the determination, the signal has been connected to the PSTN switchboard, allowing a counterpart telephone number to be input through the keypad; and a call algorithm execution step of allowing the communication module to determine whether the signal sent in the input algorithm execution step has been connected to the counterpart, so that a call is performed.

[2] The mobile phone of claim 1, wherein in the input algorithm execution step, the call mode algorithm and the input algorithm are operated cooperatively, and then perform access to the communication mode by call.connect (DirectCallNumber + callMode + phone_number + "s"); removeFirstRecord( ); //end call ( ).

[3] The mobile phone of claim 2, wherein the call mode of the mobile phone is any one selected from "P", "p", "T", and "t".

[4] The mobile phone of claim 2, wherein "s" includes application of one of "*" and

"#" of keypads of a display unit.