WO1995002949A1 - Dispositivo tarificador y cobrador para telefonia movil, con comunicacion electronica de la cuantia - Google Patents
Dispositivo tarificador y cobrador para telefonia movil, con comunicacion electronica de la cuantia Download PDFInfo
- Publication number
- WO1995002949A1 WO1995002949A1 PCT/ES1994/000071 ES9400071W WO9502949A1 WO 1995002949 A1 WO1995002949 A1 WO 1995002949A1 ES 9400071 W ES9400071 W ES 9400071W WO 9502949 A1 WO9502949 A1 WO 9502949A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amount
- communication
- calls
- charging
- mode
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18567—Arrangements for providing additional services to the basic mobile satellite telephony service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
Definitions
- Charging and charging device for mobile telephony with electronic communication of the amount.
- the present invention refers to a charging and charging device for mobile telephony, with electronic communication of the amount, in which the payment is made once the communication is completed, for mobile telephony, adaptable to any mobile device.
- mobile phone which uses current cellular technology (TACS, GSM, etc.), or any other that may be used in the future (for example satellite telephony; and capable of automatic charging, said charging being susceptible to changes in the amounts to be charged, either the initial one, or the amount per step.
- the system provides an electronic means of communication with other external electronic devices, which allows the amount of the call or calls made to be transmitted to them. communication to control smart chip card readers / recorders, so that charging can be done automatically.
- the mobile phone charging device has been devised, with electronic communication of the amount, object of the invention, which can be adapted to any mobile phone in the current market and to other mobile phone services that may be created in the future, through slight modifications.
- this charging device has small size, since it does not require coin or card mechanisms, which allows it to be installed at any point. It also allows the user to make calls without needing to be in possession of the corresponding card, or of enough coins to make the communication. In addition, this device makes an exact charge, unlike what happens with coin charging systems, in which once a coin has been charged, it is not possible to recover the value by the user. On the other hand, by electronically supplying, through a serial port, the amount of the calls made, it is allowed to read that amount by centralizing payment devices, such as taximeters, which could accept the value generated by the feeder object of the invention as a new supplement.
- centralizing payment devices such as taximeters
- This system can also be used as a totalizer, in applications in which it is required to provide a telephone service in areas where conventional telephony cannot, making a decentralized charging, the amount of which can be subsequently communicated to another device, for its subsequent treatment and collection .
- the device is versatile enough to be able to be connected to a smart chip card reader / writer device, by slight changes in its structure, so that it can be controlled to convert the device into a smart card charging system .
- the system has two payment options: by constant step (for example every 1/14 of a minute, which is a period similar to that used by telephone in its collections) or by variable step, based on the detection of the charging signal that the operating company sends to mobile phone.
- charging begins when communication with the called party is established, thanks to the detection made on the audio signal from the mobile phone.
- the payment is made according to the rate marked by the charging signal sent by the operating company and read from the transceiver by the payment system presented.
- the rate per step and the initial are easily modifiable, without requiring the intervention of specialized personnel.
- the system also offers the possibility of monitoring the amount of money accumulated, the total number of telephone passes charged by the device in communication, the total number of calls and the total time in communication (in minutes), these values being initializable.
- the feeder is a purely electronic system, based on a microcontroller with the capacity to respond to the system's operating needs.
- This microcontroller exercises control over a display device, communication elements with the maintenance manager and a mobile phone system. It is also provided with a data protection system in case of loss of power. It also incorporates a serial communication output, which can be used to transmit abroad the value of the current amount accumulated, displayed on the display, which will generally correspond to the total value of the successive calls made by a user.
- This serial door along with other signals digitally supplied by the system, it can be used to control a smart chip card reader / writer device, such as the Hydrmberg Technologies SCA / OEM.
- the mobile phone system in turn, consists of the mobile phone itself, an interface for audio signals, a connection dating circuit, a keypad activation and lockout circuit and an interface for receiving the charging signal.
- Figure 1 shows the global block diagram of the collection system object of the invention.
- Figure 2 shows a schematic diagram in which the main components of the system stand out.
- Figure 3 is a flowchart that corresponds to the RATE mode of the system.
- Figure 4 is a flow chart that corresponds to the ARCH mode of the system.
- Figure 5a is a partial flow chart corresponding to the NORMAL mode of the system.
- Figures 5b, 5c and 5c bis are partial flow diagrams interrelated with each other and with the diagram of Figure 5a.
- Figures 5a, 5b and 5c show the operation in NORMAL mode in constant rate charging.
- Figures 5a, 5b and 5c bis show the operation in NORMAL mode, when the charging signal of the operating company is used.
- the mobile phones used as a complement to the charging system are composed of two distinct elements: the transceiver and the handset. Between the two devices an exchange of information is established through a cable, which consists of several conductors, among which in general we can distinguish: the transmission data conductor (CDT), which carries the information corresponding to the keys pressed on the handset; the receiving data conductor, which carries the data signals emitted from the transceiver (CDR); and the data control driver (CCD), used by the transmitter to synchronize the signals transmitted both through the CDT, and through the CDR.
- CDT transmission data conductor
- CDR data signals emitted from the transceiver
- CCD data control driver
- the charging system object of the invention, consists of a control subsystem (1), a display subsystem (2) and a power subsystem (3).
- the power subsystem contains the circuitry necessary to filter and convert the voltage coming from the power batteries, to the system operating voltage. It also contains an auxiliary battery and circuitry to detect voltage drops of power supply and, if necessary, allow the supply of energy from said battery for the protection of data in memory, it also contains a general switch (i1), which, when deactivated, interrupts the power supply to the entire system.
- the MAN / U5U block incorporates the different controls that the user uses to change rates and display totals.
- This block is connected to SEN / USU, which contains the appropriate interfaces for the signals coming from that subsystem, and that allow the detection of user actions by the control subsystem.
- the MC block incorporates the microcontroller, its auxiliary circuitry and the interfaces for the different logic input / output gates.
- HW / TM contains the interface for audio signals, which includes an analog switch for the audio signal transmitted by the handset (IAA, optional) and a quadrature amplifier circuit (AMO, optionally connected with a high order band pass filter).
- F for the received audio signal
- DEC connection detection circuit
- CABT keypad activation and blocking circuit
- TM CCD or CDR signals of the mobile phone
- the display subsystem (2) contains the circuitry to control two backlit alphanumeric displays, used to show the cost figures of the calls, the rates, the accumulated quantities, and the help messages to the user and the person in charge of the maintenance, connecting directly to the control subsystem.
- the system offers three modes of operation, called NORMAL, TARIFA and ARCH.
- NORMAL mode allows the device to function as a feeder.
- s1 three position switch (see figure 2).
- This switch together with the rest of the controls, are located on the outside of the housing of the feeder.
- the system includes a power switch to the mobile phone (i1), which allows it to be deactivated in the periods in which it is not used, provided that (i1) remains activated, the system can receive free calls.
- the RATE mode allows, depending on the position of the switch (s2), to change either the initial rate, and the amount per step.
- the variation of rates is done using two pushbuttons, one to increase them (p1) and the other to decrease them (p2). Both are in the block
- the ARCH mode is used to display the amount collected since the last initialization, the total time in communication (in minutes), the total number of telephone passes charged by the device, if charging is used according to the steps charged by the operating company, and the total number of calls. It also allows the zeroing of these accumulated.
- the selection of display of the amount collected or of the total time in communication is made with the selector (s2).
- the selection of the total number of telephone steps and the total number of calls is made with the same selector (s3), while the button (p2) is activated.
- the zeroing of the total accumulated amount or of the accumulated ones related to time and number of calls it is carried out with the same two buttons used to vary the rates.
- calls can be made free of charge, using the mobile phone in a conventional manner.
- the switch (s1) is in NORMAL mode or in ARCH mode, it is moved to RATE mode, and the switch (s2) is in the initial quantity position
- the initial quantity configured above will appear on the screen, and this can be modified using the push buttons (p1) and (p2).
- the switch (s1) is in NORMAL mode or in RATE mode, it is moved to ARCH mode, the amount shown on the screen will be the amount accumulated since the last reset, if the switch (s2) is found in the accumulated quantity position, or the total time in communication, if (s2) is in the other position.
- the button (p2) is activated when moving (s2), the total number of calls or the total number of telephone steps will be displayed.
- the microcontroller (MC) will have read a logical 0 in the s1 terminal, a logical 0 in the p1 terminal and a logical 0 in the p2 terminal, being placed in RATE mode and showing the rate per step and its indicative message .
- the microcontroller (MC) will take from the memory the value of the rate per step, convert it to BCD code and send it figure by number, through the display bus, connected to the display circuit (IP). For each digit to be displayed, the microcontroller will send a series of control signals, so that the number present on the bus is memorized and displayed on the screen.
- the microcontroller will continuously check the buttons (p1) and (p2). an activated button will make the The microcontroller detects a logical zero in the corresponding input, while the value read when deactivated will be 1 logical.
- the microcontroller detects its activation, internally increases the amount per step and displays it on the screen. continued enters a delay loop of 0.12 seconds, which serves to allow the rate of increase to adapt to human perception, after which it will check the state of the button again. The same process is done by pressing (p2), only that the amount per step will be decremented.
- the increase / decrease process can be carried out as many times as desired, as long as p1 or p2 is not pressed to change quantity or mode.
- the ARCH mode is analyzed below.
- the ARCH terminal By moving (s1) as an ARCH, the ARCH terminal acquires a logical zero value and the RATE terminal has a logical value of 1, if (s2) is in the accumulated quantity position, said quantity is shown on the display in the same way as described above.
- the microprocessor will then wait to receive the initialization sequence. If the pulse of (p1) is received and the pulse of (p2) is delayed more than three seconds, or the expected sequence is not received (p1-p2), the amount is not initialized, since after pressing (p1) , the microncontroller enters a three-second delay loop, during which it will accept only the pulse of (p2). Any other operation returns the system to the initial state.
- the switch (s1) must remain in NORMAL mode. In this mode, the display will show the accumulated current quantity at all times.
- the mobile phone will remain powered, so the handset will remain on, unless the switch (i1) prevents its activation. While (i1) remains activated, receiving calls without charge will be possible.
- the communication monitoring process can be seen in Figures 5b and following.
- the mobile phone will remain activated and ready to begin communication.
- the system will detect the figures marked by the user, so that when making free calls (in Spain prefix 900), these are not charged by the team. This operation is performed by monitoring the CDT, CDR and CCD terminals, through the interface with the mobile phone, to determine what figures have been dialed before the number is sent to the transceiver.
- the figures dialed by the user are detected by the transceiver shown on the handset screen.
- the The handset generates a different code for each number dialed on the keypad, so that the feeder can read those codes and determine which number is being called. If the dialed number is a toll free number, the system will not charge the call (see figure 5b). It will also determine when the number is sent, which occurs when the code of the send key is detected by the feeder.
- the microcontroller (MC) will be carrying out another activity to establish the moment in which the communication with the called subscriber materializes.
- the connection detection circuit (DEC) which is based on the fact that the intensity of the supply current consumed by the transceiver when it is transmitting, is greater than said intensity in the idle state, allows to determine the moment at which The user sends the dialed number and the connection is initiated.
- the circuit consists of a comparator, which generates a logical value 1 when said supply current exceeds a predetermined limit, remaining low in another case. The output of this circuit is read by the microcontroller (MC), which determines the connection status.
- a communication start monitoring state is entered, different depending on whether the charging is carried out by constant step or by variable step.
- the interface for the audio signals is used to determine the moment in which communication begins.
- the audio signals sent to the handset after dialing and sending the desired number, and prior to the connection between subscribers, are formed by a periodic sequence of tones and silences, similar to the signals generated in conventional telephony.
- the duration of the periods may vary, but that of the periods of silence in no case exceeds 5 seconds.
- the tone is generated by a combination of sine waves, whose main frequency component is around 500 Hz. Once the communication has begun, these signals give way to others, of totally aperiodic essence.
- the microcontroller In order to detect the moment in which the connection occurs, the microcontroller (MC) will continuously check if the received signals are periodic and with a main frequency component close to the
- the interface for the audio signals ensures that the signal received by the microcontroller (MC) can be read and processed by it.
- the analog switch (IAA) for the audio signal transmitted by the handset is used to cancel the effect that this signal produces on the received audio signal, while periods of detection are being detected. tone, interrupting it during these periods.
- the microcontroller (MC) activates the control signal of that circuit, so that the signal does not appear at its output, which prevents it from interfering with the received signal.
- the quadrature amplifier (AMO generates a square wave of a period similar to that of the major main harmonic of the received audio signal. This audio signal is optionally treated by a band pass filter (F), to obtain a sinusoidal signal with a frequency similar to that of that harmonic, which serves as an input to the quadrature amplifier (AMO.
- the action performed by the microcontroller will be to determine at all times if the received audio signal corresponds to a tone period, or a silence or communication period.
- the microcontroller will start a timing each time a tone period ends, either due to a period of silence, or the definitive establishment of the communication. If the microcontroller detects a prolonged lack of tone (approximately 1/14 of a minute), it will estimate that the communication has begun, acting accordingly.
- the error in the estimation of the moment of commencement of the communication will be less than 1/14 of a minute.
- the sampling frequency (7000 Hz.) Allows components with frequencies greater than 600 Hz to be detected with minimal error.
- the system must periodically activate (approximately every 1/14 of a minute) the transmission of the number of steps accumulated by the transceiver from the beginning of the communication, or make said information sent automatically with that periodicity by the transceiver.
- This information is sent by the transceiver through the CDR terminal to the handset, and is controlled by said transceiver by means of the OOD terminal.
- the transmission is activated by sending a certain activation code through the ODT terminal, which depends on the brands and models of mobile phones.
- the keyboard activation and blocking circuit CABT
- this code should be sent via the keyboard, but the CABT allows the microcontroller to perform this function automatically.
- the reception of the code by the transceiver originates the sending of the accumulated number of steps to the handset screen, number that is read and decoded by the microcontroller (MO), to determine the start of the communication and calculate the amount to be charged in each moment.
- the keyboard activation and blocking circuit can be external or interiot to the microcontroller.
- CABT keyboard activation and blocking circuit
- the circuit In the first case it consists of a voltage follower for digital signal and an associated control logic. This logic allows the circuit, depending on the binary value of its control inputs, to remain in three possible output states: either logical, logical 1 or acting as a follower.
- the circuit is interwoven as an interface for the signal sent by the handset to the transceiver (ODT), so that the signal that the transceiver receives can be, depending on the status of the CABT control inputs: 1) that sent by the handset; 2) logical zero or 3) 1 logical.
- the CDT signal from the handset is taken directly to one of the inputs of the microcontroller, another circuit of the ports of the microcontroller functioning as output of the circuit.
- the output of that port will be the CDT signal that is sent to the transceiver.
- the output port may, therefore, follow the input port, send codes other than those received there, or remain deactivated.
- CABT keyboard activation and blocking circuit
- the method used to avoid free calls is to keep the keypad unlocked during periods of ringtone, and locked (or by sending non-effective codes at each keypress) until you make sure that the communication has not started at the end of the end of the last tone period. In this way, the end of the connection can only occur in controlled periods of time, or once the beginning of the communication has been detected and the corresponding amount has been charged.
- the keypad lock is achieved by keeping the output of the CABT at 1 logic, so that the signals generated by the keyboard are not transmitted to the transceiver, or, in the case of the internal CABT, generating ineffective codes at each key press.
- the keyboard lock circuit can also be used in other cases where it is necessary to prevent the use of the keyboard by the user, or it is required to send information to the transceiver without using the keyboard.
- the microcontroller After detecting the commencement of the communication, in any of the two forms of charging, the microcontroller (MO) will increase the corresponding amount to be charged to the amount already accumulated, and begin a new timing period of 1/14 of a minute, period in which is based on the charging in the constant step charging and the reception of the information of accumulated steps in the variable step charging; or it will be waiting, in this second case, to receive new information on telephone passages, if this is periodically supplied by the transceiver (figures 5b, 5c and 5c bis)
- the process performed after the end of the current timing period for constant rate charging or if the information on telephone steps is not automatically received is described below.
- constant rate charging the amount currently accumulated in the value of a step, the amount defined by the user in the RATE mode, will be increased.
- variable rate charging the transmitter will be activated to send information on the accumulated number of steps, that information will be read and the number of steps elapsed since the last reading will be determined, increasing the amount currently accumulated in the display, in the corresponding value. If the reception of the step information is automatic, the transnceptor should not be activated, the information being read at the time it occurs, continuing the process in the same way as in the previous case.
- the steps detected and charged by the system will be accumulated to the total of constant steps or telephone steps, depending on the method of payment. Any successful call process is signaled by the operating company by sending the accumulated steps up to that moment. In the case of free calls and calls to service phones, this accumulated is null. This fact is used by the system to determine when service or free calls are initiated, charging a fixed amount in the first case, and not charging any in the second.
- the device will not allow dialing numbers (using the CABT) until it is detected, through the corresponding logical input, that a smart card has been inserted into the reader , and that it has enough money in memory to start a call, once the presence is detected, it will read through the serial communication channel is the amount present on the card, which will be shown on the screen, and then a communication can be initiated. The amount present in the display will be decremented each time a step is detected or a collection period ends. In addition, the system will send the reader / writer the order to record the amount remaining on the card, through the serial line
- connection detection circuit sets its logic output to zero, which is detected by the microcontroller and causes the cessation of the collection process
- the system will make one last activation for the transceiver to send the step information, in case this quantity would have changed after the end of the connection and will add it, if applicable, to the accumulated amount.
- the cumulative amount will be displayed on the screen.
- Figures 5c and 5c bis' show the flow diagram of the communication termination process.
- the beneficiary of the service may initialize the amount marked on the screen, by pressing in sequence, the push-buttons p1 and p2, in this order, in a period of less than 3 seconds between both presses, in the same way as explained for the initialization of the accumulated.
- the initialization of the previous amount causes adding it to the accumulated amount, which can be displayed in the ARCH mode.
- the device will display the rotating greeting message and instructions for use, being ready to be used again.
- the end of the communication can also occur when the amount contained in the card is consumed, which will be notified to the user with a sharp tone of 1 second duration. If the communication concludes for other reasons than the completion of the money on the card, the team performs the last activation to receive information on the steps taken, and if necessary, charges the missing ones and orders to record the remaining amount on the card.
- the person in charge of the service may charge the user according to the amount displayed on the display of the feeder, or transmit said information to a general feeder, which It could be a meter, through a serial door designed for that purpose, so that it can accumulate all the amounts to be charged for this and other services or supplements.
- One of the threads carries the information sent, following a standard protocol.
- the other thread performs control functions. It is the external system that initiates the transmission, at the time it is required by the person in charge, by changing the state in the control terminal, which will indicate to the feeder that a byte must be sent. The same procedure will be followed in sending the rest of the bytes to be transmitted, once the external system is ready to receive them.
- the inversion of the state of the corresponding thread generates an interruption in the microcontroller, which starts the transmission of the next byte.
- the sending of each byte is done bit by bit through the carrier thread, until the last bit has been sent. At that time the feeder will return to the initial state, until the external system generates another byte transmission start interruption. Once the amount has been transmitted or initialized, it will increase the total amount accumulated, displayed in ARCH mode, initializing the value accumulated on the screen to zero, see figures 1 and 2.
- the charging device allows the reception of calls without charge, whatever the mode of current operation
- a call is received, it is detected through the connection detection circuit (DEC), as the number send key has not been pressed, it is concluded that the increase in consumption is due to an incoming call, so enters non-charge mode, a message regarding this fact is displayed on the display screen.
- the system remains in this state until that communication is completed, at which time it will again allow outgoing calls.
- Call reception can be done by handset, or using the hands-free equipment of the mobile phone.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Meter Arrangements (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU72295/94A AU7229594A (en) | 1993-07-13 | 1994-07-13 | Tariffing and charging device for mobile telephony with electronic communication of the amount |
EP94921667A EP0660629A1 (en) | 1993-07-13 | 1994-07-13 | Tariffing and charging device for mobile telephony with electronic communication of the amount |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP9301564 | 1993-07-13 | ||
ES9301564A ES2076094B1 (es) | 1993-07-13 | 1993-07-13 | Dispositivo tarificador para telefonia movil con comunicacion electronica de la cuantia. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995002949A1 true WO1995002949A1 (es) | 1995-01-26 |
Family
ID=8282530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1994/000071 WO1995002949A1 (es) | 1993-07-13 | 1994-07-13 | Dispositivo tarificador y cobrador para telefonia movil, con comunicacion electronica de la cuantia |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0660629A1 (es) |
AU (1) | AU7229594A (es) |
ES (1) | ES2076094B1 (es) |
WO (1) | WO1995002949A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997005729A1 (en) * | 1995-07-27 | 1997-02-13 | Telecom Italia Mobile S.P.A. | Radio mobile terminal provided with an additional reader of chip cards |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1128653A1 (en) * | 2000-02-22 | 2001-08-29 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Method for handling communications, a communication system, a processing means, a logical node, a communication station, a computer program and a computer program product |
EP1202546A1 (en) * | 2000-10-27 | 2002-05-02 | BRITISH TELECOMMUNICATIONS public limited company | Communication terminal accomodating SIM cards |
ES2185469B1 (es) * | 2000-12-29 | 2004-06-16 | Intelligent Data, S.L. | Sistema integral de control de taxis. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264023A2 (en) * | 1986-10-01 | 1988-04-20 | Arlene J. Harris | A cellular mobile radio credit card system |
WO1990003077A1 (en) * | 1988-09-09 | 1990-03-22 | Stephen Barrie Meads | Improvements in mobile pay telephone system |
US5046085A (en) * | 1990-05-15 | 1991-09-03 | Godsey Randall D | Interfacing system for an international-type pay-telephone |
GB2261572A (en) * | 1991-09-23 | 1993-05-19 | Ardfield Limited | A telephone controller |
WO1993021740A1 (es) * | 1992-04-13 | 1993-10-28 | Adt España, S.L. | Sistema de cobro por monedas para telefonia movil |
-
1993
- 1993-07-13 ES ES9301564A patent/ES2076094B1/es not_active Expired - Fee Related
-
1994
- 1994-07-13 EP EP94921667A patent/EP0660629A1/en not_active Withdrawn
- 1994-07-13 WO PCT/ES1994/000071 patent/WO1995002949A1/es not_active Application Discontinuation
- 1994-07-13 AU AU72295/94A patent/AU7229594A/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0264023A2 (en) * | 1986-10-01 | 1988-04-20 | Arlene J. Harris | A cellular mobile radio credit card system |
WO1990003077A1 (en) * | 1988-09-09 | 1990-03-22 | Stephen Barrie Meads | Improvements in mobile pay telephone system |
US5046085A (en) * | 1990-05-15 | 1991-09-03 | Godsey Randall D | Interfacing system for an international-type pay-telephone |
GB2261572A (en) * | 1991-09-23 | 1993-05-19 | Ardfield Limited | A telephone controller |
WO1993021740A1 (es) * | 1992-04-13 | 1993-10-28 | Adt España, S.L. | Sistema de cobro por monedas para telefonia movil |
EP0596055A1 (en) * | 1992-04-13 | 1994-05-11 | Adt Espana, S.L. | Coin cashing system for mobile telefony |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997005729A1 (en) * | 1995-07-27 | 1997-02-13 | Telecom Italia Mobile S.P.A. | Radio mobile terminal provided with an additional reader of chip cards |
US6205327B1 (en) | 1995-07-27 | 2001-03-20 | Telecom Italia Mobile S.P.A. | Radio mobile terminal provided with an additional reader of chip cards |
Also Published As
Publication number | Publication date |
---|---|
AU7229594A (en) | 1995-02-13 |
EP0660629A1 (en) | 1995-06-28 |
ES2076094B1 (es) | 1996-06-01 |
ES2076094A1 (es) | 1995-10-16 |
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