Wireless access to telephone network dial tone

• US 5,896,569 A
• Filed: 05/15/1996
• Issued: 04/20/1999
• Est. Priority Date: 05/15/1996
• Status: Expired due to Fees

• Current Assignee: Communications Manufacturing Company
• Original Assignee: Communications Manufacturing Company
• Inventors: Hilligoss, Lawrence O., Butler, Myron C., Alter, George
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): Woldetatios, Yemane
• Application Number:
  US08/649,772
• Time in Patent Office: 1,070 Days
• Field of Search: 455/425, 455/434, 455/437, 455/515, 455/525, 455/440, 455/572, 455/422, 455/343, 455/423, 455/574, 379/413, 379/93.05, 379/27, 379/21, 379/37, 379/42, 320/DIG. 13, 320/DIG. 36, 340/644, 340/506, 340/870.03, 340/505, 340/827.47, 340/870.11, 340/309.4
• US Class Current: 455/423
• CPC Class Codes: H04M 1/24 Arrangements for testing
• CPC Class Codes: H04M 3/22 Arrangements for supervision, monitoring or testing
• CPC Class Codes: H04M 3/30 for subscriber's lines , for the local loop

Abstract

A system and method for providing wireless access to a telephone line of a telephone network utilize a mobile terminal and a crossconnect base station. The mobile terminal transmits a radio frequency signal carrying a telephone communication. The crossconnect base station connects to a telephone line at a crossconnect box of a telephone network, receives the radio frequency signal carrying a telephone communication, and communicates the telephone communication over a connected telephone line. Other aspects of the system and method of the present invention include: (1) providing a wakeup signal from the mobile terminal to the crossconnect base station so that the base station can be powered down when not in use, thereby conserving energy; (2) receiving both the wakeup signal and the primary communication signal (which can carry data and/or voice) through a single antenna connected to the base station at the respective crossconnect box; and (3) recharging one or more batteries in the base station from an energy source of the telephone network.

Claims

1. A system for providing wireless access to a telephone line of a telephone network, comprising:

a mobile terminal, including means for transmitting a radio frequency signal carrying a data or voice communication; and

a plurality of crossconnect base stations, each disposed at a respective crossconnect box connected by a respective plurality of telephone lines to a central office of a telephone network, and each crossconnect base station including;

means for connecting to at least one of the telephone lines at the respective crossconnect box;

means for receiving the radio frequency signal carrying a data or voice communication; and

means for communicating the data or voice communication over a telephone line connected to said means for connecting.

2. The system defined in claim 1, wherein each said crossconnect base station further includes:

a power supply; and

means for energizing the respective said crossconnect base station with said power supply in response to a control signal propagated by said mobile terminal at a different frequency than the radio frequency signal.

4. The system as defined in claim 2, wherein each said crossconnect base station still further includes means for recharging said power supply from an energy source of the telephone network connected to a telephone line connected to said means for connecting.

3. A system for providing wireless access to a telephone line of a telephone network, comprising:

a mobile terminal, including means for transmitting a radio frequency signal carrying a telephone communication; and

a crossconnect base station, including;

means for connecting to a telephone line at a crossconnect box of a telephone network;

means for receiving the radio frequency signal carrying a telephone communication;

means for communicating the telephone communication over a telephone line connected to said means for connecting;

a power supply; and

means for energizing said crossconnect base station with said power supply in response to a control signal propagated by said mobile terminal;

wherein said means for receiving the radio frequency signal includes;

a single antenna;

a radio frequency modem; and

switch means for selectably connecting said single antenna either to said radio frequency modem or to said means for energizing said crossconnect base station with said power supply.

5. A system for providing wireless access to a telephone line of a telephone network, comprising:

a mobile terminal, including means for transmitting a radio frequency signal carrying a telephone communication; and

a crossconnect base station, including;

means for connecting to a telephone line at a crossconnect box of a telephone network;

means for receiving the radio frequency signal carrying a telephone communication;

means for communicating the telephone communication over a telephone line connected to said means for connecting;

a power supply; and

means for energizing said crossconnect base station with said power supply in response to a control signal propagated by said mobile terminal; and

means for recharging said power supply from an energy source of the telephone network connected to a telephone line connected to said means for connecting;

wherein said means for recharging said power supply includes;

means for connecting to a second telephone line at the crossconnect box of the telephone network;

first recharging circuit means for connecting said first-mentioned means for connecting, and a first telephone line connected thereto, to said power supply; and

second recharging circuit means for connecting said second-mentioned means for connecting, and a second telephone line connected thereto, to said power supply.

6. The system as defined in claim 5, wherein said first and second recharging circuits are connected in electrical parallel to said power supply.

7. A system for providing wireless access to dial tone of a telephone network, comprising:

a mobile terminal for a telephone craft technician, said mobile terminal including;

a wakeup transmitter;

a first radio frequency modem; and

a first controller connected to said wakeup transmitter and said first radio frequency modem; and

a crossconnect base station for connecting to a telephone line at a crossconnect box of a telephone network, said crossconnect base station including;

a wakeup receiver responsive to said wakeup transmitter;

a second radio frequency modem responsive to said first radio frequency modem;

a telephone line modem for the telephone line; and

a second controller connected to said wakeup receiver, said second radio frequency modem, and said telephone line modem.

8. The system as defined in claim 7, wherein said crossconnect base station further includes a single antenna and means for connecting said single antenna to at least one of said wakeup receiver and said second radio frequency modem.

9. The system as defined in claim 8, wherein said crossconnect base station further includes:

a rechargeable battery; and

a recharging circuit connected to said second controller and said battery, said recharging circuit having inputs for connecting to two telephone lines at the crossconnect box of the telephone network so that said recharging circuit conducts recharging current to said battery from the telephone network.

10. The system as defined in claim 9, wherein said second controller includes a first universal asynchronous receiver transmitter and a second universal asynchronous receiver transmitter connected serially between said first universal asynchronous receiver transmitter and said telephone line modem.

11. The system as defined in claim 7, wherein said crossconnect base station further includes:

a rechargeable battery; and

a recharging circuit connected to said second controller and said battery, said recharging circuit having inputs for connecting to two telephone lines at the crossconnect box of the telephone network so that said recharging circuit conducts recharging current to said battery from the telephone network.

12. The system as defined in claim 11, wherein said crossconnect base station further includes means for controlling the energization of said wakeup receiver, said second radio frequency modem, said telephone line modem, and said second controller.

13. The system as defined in claim 7, wherein said second controller includes a first universal asynchronous receiver transmitter and a second universal asynchronous receiver transmitter connected serially between said first universal asynchronous receiver transmitter and said telephone line modem.

14. A method for a telephone craft technician to remotely communicate data or voice communications over a telephone line connected to a central office of a telephone network, comprising:

propagating, from a telephone craft technician'"'"'s mobile computer device when the computer device is within a communication range of a selected crossconnect box connected to a plurality of telephone lines of a telephone network, a radio frequency communication signal including modem commands;

receiving, at the selected crossconnect box, the propagated radio frequency communication signal, and in response thereto transferring the modem commands of the communication signal to a modem connected to at least one telephone line of the plurality of telephone lines at the crossconnect box so that the modem executes the modem commands to go off-hook, dial, and transmit and receive data or voice communications over the connected telephone line; and

propagating further radio frequency communication signals between the computer device and the crossconnect box for communicating between the computer device and the telephone line.

15. The method as defined in claim 14, further comprising conducting on-going bi-directional communications between the computer device and the called telephone number until either the computer device is moved out of the communication range of the selected crossconnect box or the communication from the computer device ceases for a predetermined time period.

16. The method as defined in claim 14, further comprising:

propagating, from the telephone craft technician'"'"'s mobile computer device, a radio frequency wakeup signal when the computer device is within the communication range of the selected crossconnect box; and

receiving, at the selected crossconnect box, the propagated radio frequency wakeup signal and energizing the crossconnect base station in response thereto.

17. The method as defined in claim 16, wherein the radio frequency wakeup signal and the radio frequency communication signal are transmitted at different frequencies but are received at the selected crossconnect box through the same antenna connected to the crossconnect base station.

18. The method as defined in claim 14, wherein the crossconnect base station includes a rechargeable battery and said method further comprises recharging the battery from an energy source of the telephone network through two separate telephone lines of the plurality of telephone lines at the crossconnect box.

19. A method for a telephone craft technician to remotely communicate over a telephone line, comprising:

propagating, from a telephone craft technician'"'"'s service vehicle when the service vehicle is within a communication range of a selected crossconnect box of a telephone network, a radio frequency communication signal including modem commands;

receiving, at the selected crossconnect box, the propagated radio frequency communication signal, and in response thereto transferring the modem commands of the communication signal to a modem connected to a telephone line at the crossconnect box so that the modem executes the modem commands to go off-hook, dial, and transmit and receive over the connected telephone line;

propagating further radio frequency communication signals between the service vehicle and the crossconnect box for communicating between the service vehicle and the telephone line; and

recharging a rechargeable battery in the crossconnect base station from an energy source of the telephone network, including;

from the crossconnect base station, placing the telephone line in an off-hook condition and sending a predetermined telephone number over the telephone line to connect the telephone line to a second telephone line connected to the crossconnect base station at the selected crossconnect box; and

conducting electrical current received from the two connected telephone lines to the battery.

20. A method for a telephone craft technician to remotely communicate over a telephone line, comprising:

propagating, from a telephone craft technician'"'"'s service vehicle when the service vehicle is within a communication range of a selected crossconnect box of a telephone network, a radio frequency communication signal including modem commands;

receiving, at the selected crossconnect box, the propagated radio frequency communication signal, and in response thereto transferring the modem commands of the communication signal to a modem connected to a telephone line at the crossconnect box so that the modem executes the modem commands to go off-hook, dial, and transmit and receive over the connected telephone line;

propagating further radio frequency communication signals between the service vehicle and the crossconnect box for communicating between the service vehicle and the telephone line; and

recharging a rechargeable battery in the crossconnect base station from an energy source of the telephone network, including;

from the crossconnect base station, placing the telephone line in an off-hook condition and sending a predetermined telephone number over the telephone line to connect the telephone line to a second telephone line connected to the crossconnect base station at the selected crossconnect box so that an alternating current electrical ringing signal is generated; and

providing at the crossconnect base station an electrical charging current to the battery in response to the alternating current electrical ringing signal.