Ground-to-air telephone calling system and related method for directing a call to a particular passenger

• US 5,408,515 A
• Filed: 04/12/1994
• Issued: 04/18/1995
• Est. Priority Date: 04/29/1988
• Status: Expired due to Term

• Current Assignee: Skytel Corporation (Bell Industries Incorporated)
• Original Assignee: Mobile Telecommunications Technologies, LLC (Mobitex Technology AB)
• Inventors: Hays, William D., Bhagat, Jai P., Oswalt, Ernest A.
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): CUMMING, WILLIAM D
• Application Number:
  US08/226,394
• Time in Patent Office: 371 Days
• Field of Search: 379/59, 379/92, 379/56, 379/58, 379/440, 342/357, 364/407, 455/33.1, 455/34.1
• US Class Current: 455/431
• CPC Class Codes: H04B 7/18508 with satellite system used as relay, i.e. aeronautical mobile satellite service

Abstract

A ground-to-air telephone calling system is provided including a computer for receiving an airborne telephone number and a call-back number from a calling party and forming the telephone numbers into a data signal comporting with existing protocol filed in the FCC, an uplink unit for uplinking the data signal to a satellite and a plurality of downlink stations for receiving the data signal from the satellite; a plurality of ground stations corresponding to each of the downlink units for receiving the data signals and passing a call signal identifying the airborne telephone and particular ground station to a corresponding transmit/receive unit for subsequent transmission to the aircraft; a call being initiated from the ground station to the calling party over the public switched telephone network if the aircraft responds to the call signal. An alternative embodiment provides for a plurality of telephones on board the aircraft, and is capable of directing a call from a ground based caller to a particular telephone assigned to a passenger on the aircraft.

Claims

1. A system for establishing a communication link between a ground-based caller and a passenger on board an aircraft, the aircraft having a plurality of telephones, the system comprising:

means for assigning a traveler assigned number (TAN) to the passenger, said TAN comprising a code to uniquely identify the passenger;

means for assigning an aircraft identification number (AIN) to the aircraft, said AIN comprising a code to uniquely identify the aircraft;

first correlation means for correlating the passenger'"'"'s TAN to a predetermined seat assignment on the aircraft;

means for generating a data signal in response to a telephone call to the passenger from said caller, said data signal including the passenger'"'"'s seat assignment, the aircraft AIN, and the caller'"'"'s telephone number;

a signal transmitting and receiving network for receiving the data signal and transmitting a call signal over a predetermined geographic area, the call signal including the passenger'"'"'s seat assignment;

means, on board the aircraft, for receiving the call signal;

second correlation means, on board the aircraft and responsive to the seat assignment in the call signal, for correlating the call signal with a predetermined telephone on board the aircraft;

switching means, on board the aircraft and responsive to the second correlation means, for establishing a call connection to the predetermined telephone;

means, on board the aircraft and responsive to the call signal, for transmitting a response signal; and

means, included in the signal transmitting and receiving network and responsive to the response signal, for calling the caller'"'"'s telephone number and completing a communication link to the caller when the caller answers the telephone call.

2. A system according to claim 1, wherein the signal transmitting and receiving network includes a plurality of ground units, each of the plurality of ground units comprising means for receiving the data signal and means for storing the telephone number of the caller.

3. A system according to claim 1, where said TAN comprises at least one of a social security number and a frequent flyer number.

4. A system according to claim 1, wherein said first correlation means is located at an airline ticket counter of an airport.

5. A system according to claim 1, wherein said plurality of telephones on board said aircraft include one telephone located at each seat on said aircraft.

6. A system according to claim 1, wherein said plurality of telephones on board said aircraft include one telephone for a predetermined group of seats on said aircraft;

and the system further comprises seat indication means associated with each of said plurality of telephones for indicating for which seat of the predetermined group of seats associated with the one telephone an incoming call is intended.

7. A system according to claim 1, wherein the receiving means on board the aircraft and transmitting means on board the aircraft comprise an 800 MHz multichannel digital RF transceiver.

8. A system according to claim 1, wherein the means for transmitting the response signal includes means for generating the response signal when the AIN included in the call signal corresponds to the AIN of the aircraft.

9. A system according to claim 1, further comprising means for storing a record of information including the passenger'"'"'s TAN and seat assignment and the aircraft'"'"'s AIN.

10. A system according to claim 9, wherein said record of information further includes the passenger'"'"'s flight times;

and said system further comprises, means for comparing a current time of day with the passenger'"'"'s flight times; and

means responsive to the comparison means for transmitting the call signal only if the call is being made during the passenger'"'"'s flight times.

11. A system for establishing a communication link between a ground-based caller and a passenger on board an aircraft having a plurality of telephones, comprising:

means for correlating the passenger to a predetermined seat assignment on a predetermined aircraft;

means for correlating a predetermined telephone on board the aircraft to the passenger;

means for receiving a call for the passenger;

means for receiving the caller'"'"'s telephone number;

means for transmitting a call signal over a predetermined geographic region;

means for receiving the call signal at the aircraft;

means for establishing a call connection to the predetermined telephone on the aircraft;

means for transmitting a response signal from the aircraft to a ground station in response to receipt of the call signal;

means for calling the caller'"'"'s telephone number from the ground station in response to receipt of the response signal; and

means for establishing the communication link between the predetermined telephone and the caller when the caller answers the call to the caller'"'"'s telephone number.

12. A system according to claim 11 wherein the means for correlating a predetermined telephone on board the aircraft to the passenger includes means for correlating the passenger'"'"'s predetermined seat assignment to the predetermined telephone.

13. A method of establishing a communication link between a ground-based caller and a passenger on board an aircraft having a plurality of telephones, the method comprising the steps of:

correlating the passenger to a predetermined seat assignment on a predetermined aircraft;

correlating a predetermined telephone on board the aircraft to the passenger;

receiving a call for the passenger;

receiving the caller'"'"'s telephone number;

transmitting a call signal over a predetermined geographic region;

receiving the call signal at the aircraft;

establishing a call connection to the predetermined telephone on the aircraft;

transmitting a response signal from the aircraft to a ground station in response to receipt of the call signal;

calling the caller'"'"'s telephone number from the ground station in response to receipt of the response signal; and

establishing the communication link between the predetermined telephone and the caller when the caller answers the call to the caller'"'"'s telephone number.

14. A method according to claim 13 wherein the step of correlating a predetermined telephone on board the aircraft to the passenger includes the step of correlating the passenger'"'"'s predetermined seat assignment to the predetermined telephone.