KR100314603B1 - A public telephone having multi-function - Google Patents

Abstract

The present invention relates to a public telephone of a multi-function integrating and embedding a facsimile function, an e-mail transmission / reception function, an internet function, and a print function in a public telephone.

A feature of the present invention includes: a touch screen installed in front of a public telephone and determining an input state selected by various operations of a user; A liquid crystal display panel installed at a rear end of the touch screen to display a current operation state and various display states of a public telephone; A camera installed at a predetermined front surface of the public telephone, for photographing an object in front of the public telephone in order to perform image communication using the public telephone, and outputting photographed image data; A scanner installed at a predetermined position of a public telephone, including a document input port through which a user can input a document, scanning a document input by a user, and outputting image data obtained in a scanning operation; A printer installed inside the public telephone and including a discharge port and a loading unit for loading and printing the printed output and printing various image data according to a user's operation; A card reader which detects various types of information from the card so as to claim the use of the card put into the payphone and the amount of money to be used later, and reads and records the money charged to the card according to the usage of the payphone; A call circuit including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matching unit to perform a call function of a public telephone; It controls the various operations of the card reader and the call circuit and interfaces the input / output states of various data provided from the card reader, and determines whether the card is a usable card according to the information of the card detected by the card reader, An interface unit for controlling whether the communication path is opened by controlling the communication circuit according to the determination result; A memory for storing various program data to be executed by a public telephone and storing data scanned by a scanner and various display information to be displayed on a liquid crystal display panel as necessary; A modem for modulating and demodulating various types of information to be transmitted / received from a public telephone through a communication network, and controlling a transmission / reception state of various kinds of information; A communication network controller for interfacing the modem with the communication network; A telephone network controller for interfacing a public telephone with a telephone network; A central processing unit for overall control of various operations of the public telephone while communicating with the interface unit according to a predetermined protocol; The central processing unit displays at least a telephone function, a facsimile function, an e-mail function, and an internet search function that the user can select according to the program data stored in the memory. One point is to control each component to perform one of the e-mail function and the Internet search function.

The present invention integrates and embeds a facsimile function, an e-mail sending / receiving function, an internet function, and a printing function in a public telephone so that users can perform various complex functions. There is an advantage that can be used conveniently.

Description

Multi-function public telephone {A PUBLIC TELEPHONE HAVING MULTI-FUNCTION}

The present invention relates to a public telephone of a composite function, and more specifically, to a public telephone to perform various complex functions by integrating and embedding a facsimile function, an e-mail sending / receiving function, an internet function, and a printing function. It's about a multifunction pay phone.

In addition, the present invention relates to a public telephone of a multi-function which allows a video communication function to be built in a camera.

The most representative device of the communication means is a telephone. Telephones can be divided into home telephones, corporate key phones, and public telephones that can be used by ordinary users. In recent years, telephones are emerging from the conventional telephone functions as simple telephone equipment, and more efficient and convenient functions using a microprocessor are being added to the telephones. Among these, public telephones are installed for general users by telephone service companies, and have been limited to conventional call functions.

Meanwhile, with the recent development of office automation equipment, facsimile machines, printers, modems, scanners, and the like have been widely distributed to general users, thereby providing work efficiency. These office automation devices are usually used in homes or offices, and are developed and marketed as separate products due to the characteristics of each device.

However, as the scope of work using office automation equipment increases day by day, the purchase of each of these devices individually is an economic burden for the general consumer. Multi Function Peripheral (MFP) is being developed and marketed. Typically, such a multifunction device is used in conjunction with a computer, it is possible to selectively install and use a variety of products depending on its use.

By the way, according to the conventional office automation equipment, when purchasing each device individually or when purchasing a multifunction device in which each device is a systemized, the size of the corresponding product is not available because it is portable. However, in recent office environments, various types of information must be transmitted / received or output from the outside.

Recently, portable computers (laptop computers, palm-top computers, etc.) are commercially available, but these computers only need to carry separate equipment to perform functions such as a pure computer and to perform functions such as communication and output.

As a result, there is a need for users to use various office equipment even in unspecified areas.

Accordingly, the present invention is a step forward from the conventional office automation apparatus, and an object of the present invention is to integrate and embed a facsimile function, an e-mail transmission / reception function, an internet function, and a print function in a public telephone. It is to provide a multi-function public telephone that enables the user to conveniently use the office automation equipment even in an unspecified area.

This multifunction public payphone performs e-mail, Internet search, scan, print, and facsimile functions through public telephone lines.

1 is a perspective view showing the appearance of a multi-function public telephone applied to the present invention,

2 is a schematic internal block diagram of a multi-function public telephone according to the present invention,

3 to 9 is an operation flowchart showing a process of performing various functions of the public telephone of the multi-function according to the present invention,

3 is an operation flowchart of a service selection mode;

4 is a flowchart illustrating the operation of the card insertion mode.

5 is an operation flowchart of a telephone mode;

6 is an operation flowchart of a fax mode,

7 is an operation flowchart of an e-mail mode,

8 is an operation flowchart of the Internet mode,

9 is an operation flowchart of an emergency call mode,

10 to 19 is a format diagram of the protocol of the central processing unit and the interface unit applied to the present invention,

10A is a diagram illustrating a communication procedure between a CPU and an interface unit.

10b is a structural diagram of a request signal block;

10C is a structural diagram of a response signal block;

11A is a structural diagram of a request signal block for checking an abnormality of an interface unit;

FIG. 11B is a structural diagram of a response signal block for FIG. 11A;

FIG. 11C is a structural diagram of a status data block of FIG. 11B;

12A is a structural diagram of a request signal block for reading a credit card,

12B is a structural diagram of a response signal block shown in FIG. 12A;

13A is a structural diagram of a request signal block for requesting the transmission of a credit card number;

FIG. 13B is a structural diagram of a response signal block for FIG. 13A;

FIG. 13C is a structural diagram of a status data block of FIG. 13B.

14A is a structural diagram of a request signal block for information indicating a card type,

14B is a structural diagram of a response signal block shown in FIG. 14A;

FIG. 14C is a structural diagram of a card data block of FIG. 14B;

15A is a structural diagram of a request signal block for recording the amount of money of an IC card;

15B is a structural diagram of a response signal block shown in FIG. 15A;

15C is a structural diagram of a card write data block of FIG. 15B.

16A is a structural diagram of a request signal block for requesting to send a single DTMF signal,

16B is a structural diagram of a response signal block shown in FIG. 16A;

17A is a structural diagram of a request signal block for requesting to transmit a plurality of DTMF signals;

FIG. 17B is a structural diagram of the DTMF data block of FIG. 17A;

17C is a structural diagram of a response signal block for FIG. 17A;

FIG. 17D is a structural diagram of the DTMF data block of FIG. 17C;

18A is a structural diagram of a request signal block for turning on / off a loop state of a telephone line;

18B is a structural diagram of a response signal block shown in FIG. 18A;

19A is a structural diagram of a request signal block for performing a mute state in a 'telephone mode' or an 'emergency call mode';

FIG. 19B is a structural diagram of a mute data block shown in FIG. 19A;

19C is a structural diagram of a response signal block shown in FIG. 19A.

<Description of the code | symbol about the principal part of drawing>

100: public telephone 101: touch screen

102: liquid crystal display panel 103: card slot

104: original feeder 105: original output

106: handset 107: hook

108: camera 109: central processing unit

110: scanner 111: printer

112: card reader 113: interface unit

114: memory 115: modem

116: communication network (ISDN or ADSL) 117: communication network control unit

118: call circuit 119: telephone network control unit

120: telephone network (PSTN)

A feature of the present invention for achieving such object (s) includes: a touch screen installed at the front of a public telephone and determining an input state selected by various operations of a user; A liquid crystal display panel installed at a rear end of the touch screen to display a current operation state and various display states of a public telephone; A camera installed at a predetermined front surface of the public telephone, for photographing an object in front of the public telephone in order to perform image communication using the public telephone, and outputting photographed image data; A scanner installed at a predetermined position of a public telephone, including a document input port through which a user can input a document, scanning a document input by a user, and outputting image data obtained in a scanning operation; A printer installed inside the public telephone and including a discharge port and a loading unit for loading and printing the printed output and printing various image data according to a user's operation; A card reader which detects various types of information from the card so as to claim the use of the card put into the payphone and the amount of money to be used later, and reads and records the money charged to the card according to the usage of the payphone; A call circuit including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matching unit to perform a call function of a public telephone; It controls the various operations of the card reader and the call circuit and interfaces the input / output states of various data provided from the card reader, and determines whether the card is a usable card according to the information of the card detected by the card reader, An interface unit for controlling whether the communication path is opened by controlling the communication circuit according to the determination result; A memory for storing various program data to be executed by a public telephone, and storing data scanned by a scanner and various display information to be displayed on a liquid crystal display panel as necessary; A modem for modulating and demodulating various types of information to be transmitted / received from a public telephone through a communication network, and controlling a transmission / reception state of various kinds of information; A communication network controller for interfacing the modem with the communication network; A telephone network controller for interfacing a public telephone with a telephone network; A central processing unit for overall control of various operations of the public telephone while communicating with the interface unit according to a predetermined protocol; The central processing unit displays at least a telephone function, a facsimile function, an e-mail function, and an internet search function that the user can select according to the program data stored in the memory. One point is to control each component to perform one of the e-mail function and the Internet search function.

Here, the telephone function detects information recorded on the card through the card reader; Determine whether the card is a usable card based on the detected information; If the determination result card is a usable card, detecting a dial program among various programs stored in the memory and displaying a dial window on the liquid crystal display panel so that the user can input a telephone number; Detects an input state input by a user through a dial window through a touch screen; Set a call to a telephone number corresponding to the detected input state; Whenever the unit time is exceeded, the unit amount is reduced and settled from the amount recorded on the card by the card reader.

At this time, in the telephone mode, the image information of the user photographed by the camera is displayed on the liquid crystal display panel and the image information is transmitted to the counterpart through the communication network.

In addition, the fax function detects information recorded on the card through the card reader; Determine whether the card is a usable card based on the detected information; If the determination result card is a usable card, displaying a transmission information input window on the liquid crystal display panel so that the user can input transmission information necessary for fax transmission including the other party's telephone number; Detects an input state input by a user through a transmission information input window through a touch screen; Scan the original; When the scan operation is completed, dial the other party's telephone number to the transmission information to connect the call; Transmitting image data obtained through a scan operation; Whenever the unit time is exceeded, the unit amount is reduced and settled from the amount recorded on the card by the card reader.

The electronic mail function also detects information recorded on the card through the card reader; Determine whether the card is a usable card based on the detected information; If the determination result card is a usable card, detecting a keyboard program among various programs stored in the memory and displaying a keyboard window on the liquid crystal display panel so that the user can input transmission information including an e-mail address and a message; Detects transmission information input by the user through the keyboard window through the touch screen; Access a server of an Internet service provider through a communication network; Executes an e-mail program among various programs stored in the memory; Transmitting a message to an email address of the detected transmission information; Whenever the unit time is exceeded, the unit amount is reduced and settled from the amount recorded on the card by the card reader.

The Internet search function detects the information recorded on the card through the card reader; Determine whether the card is a usable card based on the detected information; If the determination result card is a usable card, detecting and executing a web browser program among various programs stored in the memory; Access to a server of an Internet service provider through a communication network; Display an Internet service menu through a web browser program; After starting the service, the unit amount is reduced and settled from the amount recorded on the card through the card reader whenever the unit time is exceeded.

On the other hand, if the function is selected, the dial program and the emergency phone book program among the various programs stored in the memory are detected to display a dial window and an emergency phone book window on the liquid crystal display panel so that the user can input and select a telephone number; Detects an input state entered by the user through one of a dial window and an emergency phone book window through a touch screen; The system may further include an emergency call mode for setting a call to a phone number corresponding to the detected input state.

In this case, it is preferable that the emergency call mode is an emergency mode that can be switched at any time according to a user's request regardless of the mode in which the public telephone is currently in progress.

In the emergency call mode, the image information of the user photographed by the camera is displayed on the liquid crystal display panel, and the image information is transmitted to the counterpart via the communication network.

On the other hand, before performing each mode, the interface unit checks whether the card reader has failed; The central processing unit may further include a card reader failure diagnosis mode in communication with the interface unit to indicate an item that service cannot be provided if the card reader is in a fault state.

Further, the method further includes a function of changing and selecting a language of a display state displayed on the liquid crystal display panel during each mode; When the language selection function is selected, the language selected by the user among the at least two national languages previously stored in the memory is also displayed.

At this time, it is preferable that the language selection function is an emergency mode which can be switched at any time according to the user's request regardless of the mode in which the public telephone is currently in progress.

In addition, the method further includes a function of displaying help for various functions of the public telephone during the execution of each mode; When the help function is selected, executing a help program among various programs previously stored in the memory to display a help window; Help information corresponding to the help item selected by the user is displayed on the liquid crystal display panel.

In this case, the help function is preferably an emergency mode which can be switched at any time according to a user's request regardless of the mode in which the public telephone is currently in progress.

In addition, when the card is forcibly ejected during each mode, the central processing unit stops the corresponding mode of the public telephone, switches to the initial mode for selecting a service, and displays a list of services that the public telephone can provide. Display on the panel.

If there is no user input for a predetermined time, the CPU detects advertisement information previously stored in the memory and displays the advertisement information on the liquid crystal display panel.

At this time, when the user's manipulation is detected through the touch screen in the advertisement information display state, it is preferable to switch the public telephone to the initial mode so that the public telephone can display a list of services that the public telephone can provide on the liquid crystal display panel.

The card reader also determines whether the inserted card is a credit card; If the inserted card is a credit card, the card is displayed on the liquid crystal display panel to eject the card and the use of the credit card is determined; Determining whether the inserted card is an IC card or not; If the inserted card is an IC card, the card information recorded on the IC card is detected, and the amount of money available is displayed on the liquid crystal display panel.

Hereinafter, exemplary embodiment (s) of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description there are shown a number of specific details, such as components of the specific circuit, which are provided only to help a more general understanding of the present invention that the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view showing the appearance of a multi-function public telephone applied to the present invention, FIG. 2 is a schematic internal block diagram of a multi-function public telephone according to the present invention, and FIGS. 3 to 9 are shown in FIG. An operation flowchart showing a process of performing the various functions of the public telephone by the complex function according to the present invention is shown, and FIGS. 10 to 19 show the format diagrams of protocols of the central processing unit and the interface unit applied to the present invention.

First, referring to FIG. 1 and FIG. 2, the configuration of the present invention will be described. A touch screen 101 and a liquid crystal display panel capable of simultaneously performing an input function and a display function on the front surface of a public telephone 100 may be described. The 102 is integrated and installed, and a card inlet 103 through which a card for a public telephone is inserted is provided below.

In addition, the lower end of the card input port 103 is formed with a document input port 104 for inputting the document to be scanned, the lower document input port 104 is formed with a document discharge port 105 to discharge and load the loaded document.

In addition, the side of the public telephone 100 is installed so that the handset 106 is locked by the hook 107.

In addition, a camera 108 is installed at a predetermined position in front of the public telephone 100 so as to photograph the front of the public telephone 100 and transmit image data to the other party's telephone when performing image communication.

Meanwhile, referring to FIG. 2, the internal structure of the public telephone 100 will be described. The central processing unit 109 generally controls each component of the public telephone 100 according to a predetermined program.

The touch screen 101 determines the input state selected by various operations of the user, and transmits the result to the central processing unit 109.

The liquid crystal display panel 102 displays a state in which the public telephone 100 is currently operating and various display states, and various guide phrases and advertisement phrases may be displayed as necessary.

The camera 108 photographs an object (user) located in front of the public telephone 100 in order to perform image communication using the public telephone 100, and transmits the photographed image data to the central processing unit 109.

The scanner 110 scans a document input by a user, and transmits the image data obtained in the scanning operation to the central processing unit 109.

The printer 111 prints document data or image data according to a user's operation. In particular, the printer 111 prints the contents of a mail received through a search result on the Internet connected through the public telephone 100 or an e-mail function, fax data received from a remote place, and the like. Also, a function of copying an original is performed at the request of the user.

The card reader 112 checks whether or not the card inserted into the public telephone 100 is usable, and calculates the amount of money charged to the card according to the usage of the public telephone 100 or transmits the corresponding amount information to the financial server. Detect information to claim the amount of money used.

The interface unit 113 communicates with the central processing unit 109 according to a predetermined protocol, and interfaces the control of various operations of the card reader 112 and the communication circuit 118 and the input / output states of various data. That is, the interface unit 113 determines whether the card is a usable card according to the information of the card detected by the card reader 112, and if it is determined that the card is available, transmits the determination result to the central processing unit 109. To form a currency path. In addition, the interface unit 113 controls the balance information stored in the card inserted into the card reader 112 as much as the use amount, and performs various operations related to the card such as recording a new amount. The interface unit 113 controls the loop on / off state of the telephone network 120 through the call circuit 118 and controls the DTMF generator in the call circuit 118 to generate a DTMF signal corresponding to the telephone number. .

The memory 114 stores various program data to be executed by the central processing unit 109, and temporarily stores data scanned by the scanner 110 or fax data to be transmitted through the modem 115 as necessary. In addition, the memory 114 stores various display states to be displayed on the liquid crystal display panel 102, in particular, advertisement information and display information corresponding to various service modes in the present invention.

The modem 115 modulates various types of information such as fax data or e-mail to be transmitted from a public telephone 100 through a communication network (Integrated Service Digital Network (ISDN) or Asymmetric Digital Subscriber Line (ADSL) 116) into a digital signal. In addition, demodulation of various types of information such as fax data received through the communication network 116, an e-mail, and an Internet search result is performed in analog form.

The communication network controller 117 interfaces the modem 115 and the communication network 116.

The call circuit 118 includes a call control unit, a dual tone multi frequency (DTMF) signal generator, a modulation / demodulation unit, a line matching unit, etc. to perform a call function of a general public telephone 100.

The telephone network controller 119 interfaces communication between the public telephone 100 and the public switched telephone network (PSTN) 120.

The handset 106 collects a user's voice into a microphone and provides it to the call circuit 118 and outputs the voice signal of the other party received through the telephone network 120 to the speaker so that the user can identify the voice signal.

Referring to Figures 3 to 19 with respect to the operation of the present invention having such a configuration as follows.

The operation of the present invention can be divided into various modes.

First, as shown in FIG. 10, the central processing unit 109 and the interface unit 113 communicate various information and control signals by the following procedure. That is, as illustrated in FIG. 10A, when the central processing unit 109 sends a request signal (Request Block) related to various types of information, the interface unit 113 transmits a response signal corresponding to the request signal.

In this case, as shown in FIG. 10B, the block structure of the request signal includes one byte of STX (Start of Text), several bytes of Request Command, several bytes of Data, and one byte of ETX (End). of text), 1 byte of Longitudinal Redundancy Check (LRC), and 1 byte of CR (Carriage Return) indicating the end of the request signal block.

In addition, the block structure of the response signal is composed of several bytes of data and one byte of FS (File Separator) connected to the respective data, as shown in FIG. 10C. The structure of such a protocol block is equally applied throughout the protocol, and since it is the same as that of a general public telephone, a general description thereof will be omitted.

Through such a protocol, the interface unit 113 is first checked for abnormality. This process is as shown in Figures 11a to 11c.

<Service selection mode>

This mode is an initial screen which displays on the liquid crystal display panel 102 so that a user can select a service provided by the public telephone 100. In addition, when the user does not select an input for a predetermined time, the user switches to the advertisement display mode for displaying a previously stored advertisement.

In addition, the display state of the service provided by the public telephone 100 is' telephone ',' fax ',' e-mail ',' internet ',' urgent call ( Emergency Call ”,“ Language ”,“ Help ”, and various prompts are displayed, and the user can select one of the respective display states according to the displayed prompt. In step 101, the controller 120 detects this to determine the function selected by the user, and according to the result, the CPU 109 switches to the corresponding mode.

That is, as shown in FIG. 3, the central processing unit 109 exchanges protocols with the interface unit 113 to diagnose whether a failure occurs in the card reader 112 (S101). Here, if it is determined that a failure has occurred (S102), the central processing unit 109 displays a guide phrase indicating that service provision is impossible (S103), and ends all the proceedings.

If it is determined in step S101 that no failure has occurred, the central processing unit 109 detects the preset initial screen data from the memory 114 and converts the image into image data, and then converts the image into the image data. (S104).

Subsequently, it is determined whether the 'language selection' function is selected (S105), and when the 'language selection' function is selected, the user can select a convertible language on the liquid crystal display panel 102 so that the user can select a language in the language selected by the user. Various display states of the telephone 100 are switched (S106).

In addition, when it is determined that the 'help' function is selected (S107), when it is determined that the 'help' function is selected, the CPU 109 detects the 'help' text information stored in the memory 114 and displays the liquid crystal display panel ( In step 102, a help window is displayed.

Then, when the 'help' function is terminated (S109), it is determined whether the 'telephone' function is selected (S110), when the 'telephone' function is selected, the central processing unit 109 switches to the 'card input mode' ( (S111) After displaying a prompt to insert a card and searching for the inserted card to determine whether it is a usable card, and if the determination result is normal, it switches to the 'telephone call mode' (see FIG. 5). (S112).

If the user selects the 'fax' function (S113), the central processing unit 109 switches to the 'card input mode' as mentioned above (see FIG. 4) (S114) and prompts the user to insert a card. After the card is displayed and the inserted card is searched to determine whether it is a usable card, and if the determination result is normal, the process switches to the 'fax mode' (see FIG. 6) (S115).

On the other hand, when the user selects the 'e-mail' function (S116), the central processing unit 109 switches to the 'card input mode' as mentioned above (see Fig. 4) (S117) a guide to insert the card. After displaying the card and searching the inserted card to determine whether it is a usable card, and if the determination result is normal, it is switched to the 'e-mail mode' (see Fig. 7) (S118).

When the user selects the 'Internet Search' function (S119), the central processing unit 109 switches to the 'card input mode' as mentioned above (see FIG. 4) (S120) and displays a prompt to insert a card. At the same time, it is determined whether the card can be used by searching for the inserted card, and if the determination result is normal, the process switches to the 'Internet search mode' (see FIG. 8) (S121).

When the user selects the 'emergency call' function (S122), the central processing unit 109 switches to the 'emergency call mode' (see FIG. 9) regardless of card insertion (S123).

If it is detected that the card is inserted into the card reader 112 without a user's separate operation (S124), the central processing unit 109 controls the card control unit 113 to detect various types of information recorded on the card and then does this. It is displayed on the liquid crystal display panel 102 (S125). Therefore, the user can visually check the details (charge amount, use status determination result, etc.) of the card.

If there is no user's operation for a predetermined time, the CPU 109 detects the advertisement information stored in the memory 114 and displays it on the liquid crystal display panel 102 (S126). Then, when the user touches the liquid crystal display panel 102 where the advertisement is displayed and an arbitrary position of the touch screen 101, the touch screen 101 detects this, releases the advertisement display state, and starts the 'service selection mode'. Display screen data.

Here, selecting the 'Help' function and the 'Language selection' function and the 'Cancel' function and the 'Service selection mode' restoration function for each mode, which will be described later, and ejecting the card during use, are all called 'Emergency Mode'. The user can select at any time regardless of the current state, and the CPU 109 controls to switch to the corresponding mode according to the user's selection. Therefore, in various modes to be described later, the process of performing the above-mentioned 'emergency mode' will be briefly mentioned or omitted.

<Card insertion mode>

When the user selects the appropriate function to receive phone, fax, e-mail and internet services, the card is inserted, the balance is checked, the amount used is settled, and the new amount is recorded. If the unit fee is more than one, the user switches to the service mode to be provided.

That is, as shown in FIG. 4, when it is determined that the card input state is not detected by the card detection signal from the card reader 112 in the state where the user selects an arbitrary function (S201), the central processing unit 109. Detects the phrase to insert the card of the guide phrase information stored in the memory 114, converts it to image data and displays it on the liquid crystal display panel 102 (S202).

Thereafter, if there is no user's operation for a predetermined time, the CPU 109 detects the advertisement information stored in the memory 114 and displays it on the liquid crystal display panel 102 (S203). Then, when the user touches an arbitrary position of the liquid crystal display panel 102 and the touch screen 101 where the advertisement is displayed, the touch screen 101 detects this, releases the advertisement display state, and enters the service selection mode. Display initial screen data.

If it is determined that the card is inserted in the above step (S201), the central processing unit 109 is the credit card inserted using the interface unit 113 and the protocol as shown in Figs. 12A to 14C. It is determined (S204). If it is determined in step S209 that the card inserted is a credit card, the central processing unit 109 detects the card information recorded in the magnetic area of the card and then prompts the user to eject the card to the liquid crystal display panel 102. (S205). Thereafter, when the card is discharged (S206), the central processing unit 109 opens the communication path and performs communication with the financial server to inquire whether the card is available and at the same time, the card is inquiring in the liquid crystal display panel 102. A card inquiry screen is displayed (S207). Subsequently, when it is determined that the corresponding card is an unusable card as a result of the communication with the financial server (S208), the central processing unit 109 detects a guide phrase indicating that the bad card is from the memory 114 and transmits it to the LCD panel 102. If it is determined in operation S209 that the card is an available card in step S208, the CPU 109 switches to the mode selected by the user in operation S210.

If the card inserted in step S204 is not a credit card, the central processing unit 109 determines whether the inserted card is an IC card (S211). If it is determined in step S211 that the card inserted is not an IC card, the CPU 109 determines that the card is a bad card, and detects a message from the memory 114 indicating that the card is ejected from the memory 114 to display the card. It is displayed on (S212). After discharging the card (S213), initial screen data of the service selection mode described in FIG. 3 is displayed (S214). Here, in the above-mentioned steps of determining whether the card can be used, whether or not to use the card is determined according to which card the public telephone 100 supports. That is, if the public telephone 100 is authorized to use the public telephone dedicated card, the step of determining whether the public telephone dedicated card in the above determination steps (S204, S211) should be added, the inserted card is a credit card, If it is determined that the card is not an IC card or a public phone dedicated card, the program may be determined as a bad card. Therefore, it is apparent that such similarity can be easily modified and implemented without requiring any further detailed explanation.

If it is determined that the card inserted in the above step (S211) is the IC card, the CPU 109 retrieves the card information recorded on the IC card (S215), and uses the corresponding IC card according to the found result. After displaying the amount that can be displayed on the liquid crystal display panel 102 (S216), if the amount is more than the unit amount (for example, '50 won 'required for one call), the user switches to the corresponding service mode selected by the user. (S210). Then, the central processing unit 109 exchanges the protocol as shown in Figs. 14A to 15C with the interface unit 113, controls the amount of use after the service is used, and then records the new amount on the IC card.

<Telephone mode>

When the user wants to make a phone call and selects the 'telephone' function in the 'service selection mode' and inserts the card into the card reader 112, the central processing unit 109 communicates with the interface unit 113. After performing the public telephone 100 is switched to 'telephone mode'.

That is, as shown in FIG. 5, the central processing unit 109 communicates with the interface unit 113 to determine whether the hook-off state, that is, the handset 106 is lifted (S301), and the hook-on If the state is determined, a message to lift the handset 106 is displayed on the liquid crystal display panel 102 (S302).

Then, when the public telephone 100 is determined to be in the hook-off state, the CPU 109 requests the connection and disconnection state of the line while communicating with the interface unit 113 by the protocols shown in FIGS. 18A and 18B. In response to the protocol, the interface unit 113 controls the call circuit 118 to connect lines (Tip, Ring) of the telephone network 120 (S303). At the same time, the interface unit 113 transmits a control signal indicating that a line is connected to the central processing unit 109, and the central processing unit 109 responds to the control signal from the interface unit 113 to the memory 114. Among the various display information stored in the display, dial-related image data in which a user can input a phone number is detected and displayed on the liquid crystal display device 102 (S304).

Thereafter, the central processing unit 109 checks whether a telephone number is input through the touch screen 101 (S305), and when the telephone number is input, the interface unit 113 and the protocol as shown in FIGS. 16A to 17B. While transmitting the dialing information corresponding to the telephone number to the interface unit 113, the dialing state is displayed on the liquid crystal display panel 102 (S306).

If the user selects the 'recall' function (S307), the central processing unit 109 outputs a control signal to the interface unit 113, and the interface unit 113 receiving the control signal receives the call circuit 118. Control to release the current line is connected (S308), and returns to the above step (S303) to repeat the steps after the step (S303).

In addition, when the user selects the 'call mode cancel' function (S309) or ejects the card (S310), the central processing unit 109 outputs a control signal to the interface unit 113, the interface unit receiving the control signal 113 controls the call circuit 118 to release the corresponding line currently being connected (S311), and displays initial screen data of the 'service selection mode' (S312).

If a call is connected by performing a normal dialing process (S313), the interface unit 113 sends a control signal indicating a call connection state to the central processing unit 109, and the central processing unit 109 transmits the control signal. In response to the indication that the call is connected, the indication that the call is currently in use and the current balance of the card and at the same time through the interface unit 113 to reduce the unit charge from the current balance of the card (S314). In addition, the interface unit 113 checks whether the unit time has elapsed (S315), and performs a settlement operation of subtracting the unit amount by performing the above step (S314) whenever the unit time elapses.

After that, when the call is terminated (S316), the connection of the corresponding line is released (S317), and after storing the call information (S318), it switches to the 'service selection mode' (S319).

At this time, the central processing unit 109 drives the camera 108 to photograph the user in front of the camera 108, and then displays the obtained image information on the liquid crystal display panel 102, and at the same time, the modem 115 and It transmits to the other party's telephone terminal through the communication network 116. Therefore, video communication is possible.

<Fax mode>

When a user wants to send a fax and selects a 'fax' function in the 'service selection mode' and inserts a usable card into the card reader 112, the central processing unit 109 communicates with the interface unit 113. After performing the public telephone 100 is switched to the 'fax mode'.

That is, as shown in FIG. 6, the central processing unit 109 indicates that the currently selected mode is the 'fax mode' on the liquid crystal display panel 102 (S401), and transmits transmission information such as a remote telephone number to be transmitted. A prompt for input is displayed (S402). Thereafter, the central processing unit 109 checks whether the input of the transmission information has been completed (S403), and if the input is completed, displays a guide phrase indicating that the document is in a waiting state for scanning an original (S404). Subsequently, when an original is input, the central processing unit 109 controls the scanner 110 to scan the original (S405), and displays a guide phrase indicating that the scanning operation has started on the liquid crystal display panel 102 (S406). ).

If a scan job stop command is input from the user during this process (S407), the central processing unit 109 controls the scanner 110 to stop the scan job and then switches to the 'fax mode' (S408).

If the scanning process is normally completed (S409), the central processing unit 109 displays the image data obtained by the scanning operation on the liquid crystal display panel 102, and performs the user's confirmation operation (S410). Here, when the user selects the 'confirmation' function through the touch screen 101 (S411), a guide phrase for confirming the total number of sheets to be transmitted is displayed on the liquid crystal display device 102 (S412), and scans the total number of sheets. The scan operation is repeatedly performed by returning to the above step S405 until the operation is completed.

When all the originals to be scanned are scanned by this process, the CPU 109 determines whether the 'send' function is selected (S413), and when the 'cancel transmission' function is selected, returns to the 'service selection mode'. When the 'transmit' function is selected, the communication network 116 is connected to the line and at the same time detects and dials the other party's telephone number among the transmission information input in the above step (S402) (S415). Thereafter, when the other party's facsimile and call are set, transmission of temporarily stored fax data is started (S416). At this time, if an error occurs in the transmission state (S417), the central processing unit 109 guides that an error has occurred. After the message is displayed on the liquid crystal display panel 102 (S418), it is determined whether the retransmission function is selected (S419), and if the retransmission function is selected, the process returns to the above step (S416) and resumes the fax transmission. . In addition, if the retransmission function is not selected, the process returns to the above step (S414) and switches to the 'service selection mode'.

If the error does not occur in the fax transmission operation, the central processing unit 109 displays a guide phrase indicating that the fax data is being transmitted on the liquid crystal display panel 102 (S420), and the card is displayed every time the unit time elapses. Subtracting and displaying the present amount of money recorded at the same time, and controlling the interface unit 113 to subtract the unit amount from the present amount recorded on the card to settle and record (S421).

Subsequently, when the transmission of the fax data is completed (S422), the central processing unit 109 displays a notice text indicating that the transmission is completed and at the same time requests the final balance information of the card from the interface unit 113 to display the balance information. After that (S423), switch to the 'service selection mode' to display the initial screen data (S424).

On the other hand, if you want to print the fax data received from a remote location, the central processing unit 109 temporarily stores the received fax data in the memory 114 and at the same time controls the printer 111 to output the received fax data in real time can do.

<E-mail mode>

When the user selects the 'e-mail' function in the 'service selection mode' in order to transmit the e-mail, and inserts the card into the card reader 112, the central processing unit 109 is connected to the interface unit 113. After performing the communication, the public telephone 100 is switched to the 'e-mail mode'.

That is, as shown in FIG. 7, the central processing unit 109 indicates that the currently selected mode is the 'e-mail mode' on the liquid crystal display panel 102 (S501), and the user contacts the liquid crystal display panel 102. A keyboard program is executed to input an e-mail address and a message (S502), and a guide phrase for inputting a keyboard input state and an e-mail address and a message to be transmitted is displayed (S503). Thereafter, the central processing unit 109 checks whether the input of the transmission information is completed (S504), and if the input is completed, displays the contents of the transmission (e-mail address and message) input in the transmission information input step (S503). By displaying on the panel 102, the user's confirmation is performed (S505). Here, when the user selects the 're-input' function (S506), the process returns to the above step (S503) to re-enter the transmission information.

If the user selects the 'transfer' function through the touch screen 101 (S507), the central processing unit 109 controls the modem 115 to connect to the server of the Internet Service Provider (ISP). (S508). Accordingly, the modem 115 controls the communication network controller 117 to connect to the server through the communication network 116.

When the public telephone 100 is connected to the server, the central processing unit 109 executes an e-mail program among various programs stored in the memory 114 (S509), and transmits a message to the other party's e-mail address (S510). .

Thereafter, when the transmission operation is completed (S511), the central processing unit 109 communicates with the interface unit 113 to settle the card fee as much as the usage fee, and then control to record a new amount (S512), and the communication network 116 After transmitting the transmission end signal through the (S513), the message indicating that the transmission is completed and the balance of the card is displayed on the liquid crystal display panel (102) (S514), and the initial screen data by switching to the 'service selection mode' It is displayed (S515).

If the transmission is not completed in step S511, the central processing unit 109 checks whether an error has occurred in the 'e-mail' function (S516), and if the error occurs, the corresponding error content is displayed in the liquid crystal display panel. After displaying (102) (S517), the display prompts to end the 'e-mail mode' (S518), and switch to the 'service selection mode' to display the initial screen data (S519).

On the other hand, if you want to print the e-mail message received from a remote location, the central processing unit 109 temporarily stores the received message in the memory 114 and at the same time control the printer 111 to output the received message in real time. Can be.

<Internet mode>

In this mode, users can search for various information and use e-commerce by using the list provided by the server.The user selects the 'Internet' function in 'Service selection mode' in order to use the Internet. When a possible card is inserted into the card reader 112, the central processing unit 109 performs communication with the interface unit 113, and then switches the public telephone 100 to the 'Internet mode'.

That is, as shown in FIG. 8, the central processing unit 109 indicates that the currently selected mode is the 'Internet mode' on the liquid crystal display panel 102 (S601), and displays a web browser among various programs stored in the memory 114. The program is executed and displayed on the liquid crystal display panel 102 (S602). Thereafter, the central processing unit 109 controls the modem 115 to connect to the server of the Internet Service Provider (ISP) (S603). Accordingly, the modem 115 controls the communication network controller 117 to connect to the server through the communication network 116.

Accordingly, the Internet service menu is displayed on the liquid crystal display panel 102 (S604), and as the user selects an arbitrary service (S605), the central processing unit 109 communicates with the interface unit 113 to unit the card. At the same time as outputting a control signal for reducing the charge, the corresponding liquid crystal unit displays that the unit price is reduced (S606).

If the service is terminated (S607) or the card is ejected (S608), the central processing unit 109 releases the connection state of the server (S609), and switches to the 'service selection mode' to display initial screen data. (S610).

If the service is not terminated, the central processing unit 109 continuously checks whether the unit time has elapsed (S611), and returns to the above step S606 whenever the unit time has elapsed, and after the step S606. Repeat the process.

Meanwhile, the Internet search result may be output to the printer 111 at the request of the user. That is, the central processing unit 109 detects whether the output function for the search result is selected by the user, and when the output function is selected, transmits the image information of the corresponding frame to the printer 111 to print, thereby searching the Internet. Output of results is possible.

<Emergency call mode>

This mode is a mode in which the user can make an urgent call without a means of payment, i.e., a card not inserted.

That is, as shown in FIG. 9, when the user selects the 'emergency call' function in the 'service selection mode', the central processing unit 109 selects the 'emergency call mode' as the mode currently selected on the liquid crystal display panel 102. In step S701, it is checked whether the handset 106 is in the hook-off state (the handset is lifted) (S702).

If it is determined in this step S702 that the handset 106 is not in the hook-off state, the central processing unit 109 selects a guide phrase for lifting the handset from among the various guide phrases stored in the memory 114. (S703).

If, in step S702, the handset 106 is determined to be in the hook-off state, the CPU 109 executes a dialing program among various programs stored in the memory 114 to the liquid crystal display panel 102. While displaying a dial window (S704), an emergency phone book window is displayed so that the user can easily identify the emergency phone number (S705).

Thereafter, the central processing unit 109 communicates with the interface unit 113 to request a line connection, and the interface unit 113 controls the call circuit 118 to connect the telephone network 120 (S706).

At this time, when the user enters a phone number (S707) or selects an emergency phone number in the emergency phone book window (S708), the central processing unit 109 transmits a control signal corresponding to the phone number to the interface unit 113. At the same time as the transmission, a guide phrase indicating that the dial is being sent is displayed on the liquid crystal display panel 102. In addition, the interface unit 113 controls the call circuit 118 to generate a DTMF signal corresponding to the telephone number transmitted from the central processing unit 109 to dial the telephone number (S709).

After that, when the handset 106 is hooked on by the user (the handset is placed on the hook switch) (S710), the interface unit 113 controls the call circuit 118 to release the connection state of the corresponding line. At the same time (S711), the central processing unit 109 notifies that the connection state of the line is released. The central processing unit 109 switches the current mode to the service selection mode in response to the notification from the interface unit 113 (S712).

On the other hand, when the user selects the mute function in the above 'telephone mode' or 'emergency call mode', the central processing unit 109 using the protocol as shown in Figs. 19a to 19c The interface unit 113 temporarily mutes the call circuit 118 while communicating.

As described above, although the specific embodiment (s) have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiment (s) but should be defined by the claims below and equivalents thereof.

As a result, according to the multi-function public telephone according to the present invention, the following advantage (s) occurs.

In other words, by integrating and embedding the facsimile function, E-mail sending / receiving function, Internet function and printing function in the public telephone, the user can perform the office automation equipment even in unspecified area. It is convenient to use.

In addition, since the user can use any time and place as needed, there is no need to purchase a separate office automation equipment, thereby eliminating the economic burden on the user.

Claims (18)

A touch screen installed in front of the public telephone and determining an input state selected by various operations of a user; A liquid crystal display panel installed at a rear end of the touch screen to display a current operation state and various display states of the public telephone; A camera installed at a predetermined front surface of the public telephone, for photographing an object in front of the public telephone in order to perform image communication using the public telephone, and outputting photographed image data; A scanner installed at a predetermined position of the public telephone, including a document input port through which a user can input an original, and scanning the original input by the user, and outputting image data obtained in a scanning operation; A printer installed inside the payphone, including a discharge port and a loading unit for loading and outputting printed outputs, and printing various image data according to a user's operation; A card reader which detects various types of information from the card so as to charge the use of the card put into the payphone and the amount of money to be used later, and reads and records the money charged to the card according to the usage of the payphone; A call circuit including at least a call controller, a DTMF signal generator, a modulator / demodulator, and a line matcher to perform a call function of the public telephone; It controls the various operations of the card reader and the communication circuit and simultaneously interfaces input / output states of various data provided from the card reader, and enables the card to be used according to the information of the card detected by the card reader. An interface unit for determining whether a card is applied and controlling whether to open a communication path by controlling the communication circuit according to the determination result; A memory storing various program data to be executed by the public telephone, and storing data scanned by the scanner and various display information to be displayed on the liquid crystal display panel as necessary; A modem for modulating and demodulating various types of information to be transmitted / received from the public telephone through a communication network and controlling a transmission / reception state of various kinds of information; A communication network controller for interfacing the modem with the communication network; A telephone network controller for interfacing the public telephone with a telephone network; And A central processing unit which communicates with the interface unit according to a predetermined protocol and controls various operations of the public telephone in general; The central processing unit displays at least a telephone function, a facsimile function, an e-mail function, and an internet search function selectable by the user according to the program data stored in the memory, and the telephone function according to the user's selection among various displayed functions. And controlling each of the components to perform one of the facsimile function, the e-mail function, and the Internet search function. The method of claim 1, wherein the telephone function, Detect information recorded on the card through the card reader; Determine whether the card is an available card based on the detected information; If the card is a usable card, detecting a dial program among various programs stored in the memory and displaying a dial window on the liquid crystal display panel so that a user can input a telephone number; Detects an input state input by the user through the dial window through the touch screen; Set a call to a telephone number corresponding to the detected input state; The public telephone of claim 1, wherein the unit price is reduced and settled from the amount recorded on the card whenever the unit time is exceeded. The method of claim 2, wherein the telephone mode, And displaying the image information of the user photographed by the camera on the liquid crystal display panel and transmitting the image information to the counterpart through the communication network. The method of claim 1, wherein the fax function, Detect information recorded on the card through the card reader; Determine whether the card is an available card based on the detected information; If the card is a usable card as a result of the determination, displaying a transmission information input window on the liquid crystal display panel so that a user can input transmission information necessary for fax transmission including a counterpart phone number; Detecting an input state input by the user through the transmission information input window through the touch screen; Scan the original; When the scan operation is completed, dial another party's telephone number to connect the call to the transmission information; Transmitting image data obtained through the scanning operation; The public telephone of claim 1, wherein the unit price is reduced and settled from the amount recorded on the card whenever the unit time is exceeded. The method of claim 1, wherein the email function, Detect information recorded on the card through the card reader; Determine whether the card is an available card based on the detected information; If the card is a card that can be used as a result of the determination, a keyboard window is detected among various programs stored in the memory to display a keyboard window on the liquid crystal display panel so that a user can input transmission information including an e-mail address and a message. ; Detecting transmission information input by the user through the keyboard window through the touch screen; Access a server of an internet service provider through the communication network; Executing an e-mail program among various programs stored in the memory; Send the message to the email address of the detected transmission information; The public telephone of claim 1, wherein the unit price is reduced and settled from the amount recorded on the card whenever the unit time is exceeded. The method of claim 1, wherein the Internet search function, Detect information recorded on the card through the card reader; Determine whether the card is an available card based on the detected information; If it is determined that the card is a usable card, detecting and executing a web browser program among various programs stored in the memory; Access the server of the Internet service provider through the communication network; Displaying an internet service menu through the web browser program; The public telephone according to claim 1, wherein after the service is started, the unit amount is reduced and settled from the amount recorded on the card through the card reader whenever the unit time is exceeded. The method of claim 1, Selecting a function, detecting a dial program and an emergency phone book program among various programs stored in the memory and displaying a dial window and an emergency phone book window on the liquid crystal display panel so that a user can input and select a telephone number; Detects an input state input by the user through one of the dial window and the emergency call directory window through the touch screen; And an emergency call mode for setting a call to a telephone number corresponding to the detected input state. The method of claim 7, wherein the emergency call mode, The public telephone of claim 1, wherein the public telephone is an emergency mode which can be switched at any time according to a user's request irrespective of the current mode. The method of claim 7, wherein the emergency call mode, And displaying the image information of the user photographed by the camera on the liquid crystal display panel and transmitting the image information to the counterpart through the communication network. The method of claim 1, wherein before performing each of the modes, The interface unit checks whether there is a failure of the card reader; The central processing unit further comprises a card reader malfunction diagnosis mode in communication with the interface unit for displaying an item that the service is not provided if the card reader is in a fault state. The method of claim 1, wherein during each of the modes, Changing and selecting a language of a display state displayed on the liquid crystal display panel; If the language selection function is selected, the public telephone of the multi-function, characterized in that to change the display of the language selected by the user among the at least two languages for each country previously stored in the memory. The method of claim 11, wherein the language selection function, The public telephone of claim 1, wherein the public telephone is an emergency mode which can be switched at any time according to a user's request irrespective of the current mode. The method of claim 1, wherein during each of the modes, A function of displaying a help for various functions of the public telephone; When the help function is selected, executing a help program among various programs previously stored in the memory to display a help window; The public telephone according to claim 1, wherein the help information corresponding to the help item selected by the user is displayed on the liquid crystal display panel. The method of claim 13, wherein the help function, The public telephone of claim 1, wherein the public telephone is an emergency mode which can be switched at any time according to a user's request irrespective of the current mode. The method of claim 1, wherein during each of the modes, When the card is forcibly ejected, the central processing unit stops the corresponding mode of the payphone and switches to an initial mode for selecting a service so that the payphone displays a list of services that the payphone can provide on the liquid crystal display panel. Multiple function public telephone. The method of claim 1, The public processor of claim 1, wherein if there is no user input for a predetermined time, the central processing unit detects advertisement information previously stored in the memory and displays the advertisement information on the liquid crystal display panel. The method of claim 16, wherein in the advertisement information display state, When the user's operation is detected through the touch screen, the public telephone is switched to the initial mode so that the list of services provided by the public telephone can be displayed on the liquid crystal display panel. The method of claim 1, wherein the card reader, Determine whether the inserted card is a credit card; If the inserted card is a credit card, the card is displayed on the liquid crystal display panel to eject the card and the use of the credit card is determined; Determining whether the inserted card is an IC card or not; And if the inserted card is an IC card, detecting card information recorded on the IC card and displaying the amount of money available on the liquid crystal display panel.