Transmitting a broadcast via the internet within a limited distribution base of listeners

• US 20030088768A1
• Filed: 11/02/2001
• Published: 05/08/2003
• Est. Priority Date: 11/02/2001
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Challener, David Carroll
• Application Number:
  US10/016,792
• Publication Number:
  US 20030088768A1
• Time in Patent Office: Days
• US Class Current: 713/163
• CPC Class Codes: H04H 20/24 Arrangements for distribution of identical information via broadcast system and non-broadcast system
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04H 20/82 using signals not modulated onto a carrier
• CPC Class Codes: H04H 60/23 using cryptography, e.g. encryption, authentication, key distribution
• CPC Class Codes: H04H 60/42 for identifying broadcast areas
• CPC Class Codes: H04H 60/51 of receiving stations
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04N 21/2347 involving video stream encryption
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/631 Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
• CPC Class Codes: H04N 21/8106 involving special audio data, e.g. different tracks for different languages
• CPC Class Codes: H04N 7/165 Centralised control of user terminal subsequent to an upstream request signal H04N7/17345; Registering at central by two-way working H04N7/17309
• CPC Class Codes: H04N 7/17345 Control of the passage of the selected programme

Abstract

A method, system and computer program product for transmitting a broadcast over the Internet by a broadcaster where users located approximately within a defined distribution area of the broadcaster can receive or interpret the broadcast. A broadcaster may transmit an encrypted broadcast over the Internet while transmitting a decryption key to users of computer systems over the air within its defined distribution area. Only users that are located approximately within the defined distribution area of the broadcaster may receive the decryption key and hence be able to decrypt the encrypted broadcast. Furthermore, a broadcaster may receive a request from a user of a computer system to transmit a broadcast over the Internet to that user. Upon determining the approximate location of the user, the broadcaster may transmit the broadcast over the Internet to that user if that user is located approximately within the defined distribution area of the broadcaster.

Claims

1. A method for transmitting a broadcast over the Internet by a broadcaster where the broadcast is interpreted by users located approximately within a defined distribution area of the broadcaster, comprising the steps of:

encoding a radio broadcast into digital packets of information;

encrypting said digital packets of information;

transmitting said encrypted digital packets of information over the Internet; and

providing a decryption key to a transmitter to be broadcasted within said defined distribution area of said broadcaster.

2. The method as recited in claim 1 further comprising the step of:

receiving said decryption key by one or more users of computer systems located approximately within said defined distribution area of said broadcaster.

3. The method as recited in claim 2 further comprising the step of:

decrypting said encrypted digital packets of information using said decryption key.

4. The method as recited in claim 3 further comprising the step of:

reproducing said decrypted digital broadcast by an audio transducer.

5. The method as recited in claim 1, wherein said decryption key is transmitted via electromagnetic waves within said defined distribution area of said broadcaster.

6. A computer program product embodied in a machine readable medium for transmitting a broadcast over the Internet by a broadcaster where the broadcast is interpreted by users located approximately within a defined distribution area of the broadcaster comprising the programming steps of:

encoding a radio broadcast into digital packets of information;

encrypting said digital packets of information;

transmitting said encrypted digital packets of information over the Internet; and

providing a decryption key to a transmitter to be broadcasted within said defined distribution area of said broadcaster.

7. The computer program product as recited in claim 6 further comprises the programming step of:

receiving said decryption key by one or more users of computer systems located approximately within said defined distribution area of said broadcaster.

8. The computer program product as recited in claim 7 further comprises the programming step of:

decrypting said encrypted digital packets of information using said decryption key.

9. The computer program product as recited in claim 8 further comprises the programming step of:

reproducing said decrypted digital broadcast by an audio transducer.

10. The computer program product as recited in claim 6, wherein said decryption key is transmitted via electromagnetic waves within said defined distribution area of said broadcaster.

11. A system, comprising:

a server broadcaster configured to transmit a broadcast over the Internet, wherein said server broadcaster comprises;

a processor; and

a memory unit coupled to said processor, wherein said memory unit is operable for storing a computer program operable for transmitting a broadcast over the Internet, wherein said broadcast is interpreted by users located approximately within a defined distribution area of said server broadcaster, wherein the computer program is operable for performing the following programming steps;

encoding a radio broadcast into digital packets of information;

encrypting said digital packets of information; and

transmitting said encrypted digital packets of information over the Internet; and

providing a decryption key to a transmitter to be broadcasted via radio frequencies within said defined distribution area of said server broadcaster.

12. The system as recited in claim 11 further comprising:

one or more computer systems coupled to said server broadcaster, wherein one or more of said one or more computer systems are located approximately within said defined distribution area of said server broadcaster, wherein each of said one or more computer systems located approximately within said defined distribution area of said server broadcaster comprises;

a processor; and

a memory unit coupled to said processor, wherein said memory unit is operable for storing a computer program, wherein the computer program is operable for performing the following programming step;

receiving said decryption key.

13. The system as recited in claim 12, wherein the computer program in each of said one or more computer systems located approximately within said defined distribution area of said server broadcaster is further operable for performing the following programming step:

decrypting said encrypted digital packets of information using said decryption key.

14. The system as recited in claim 13, wherein the computer program in each of said one or more computer systems located approximately within said defined distribution area of said server broadcaster is further operable for performing the following programming step:

reproducing said decrypted digital broadcast by an audio transducer.

15. The system as recited in claim 11, wherein said decryption key is transmitted via electromagnetic waves within said defined distribution area of said server broadcaster.

16. A method for transmitting a broadcast over the Internet within a defined distribution area, comprising the steps of:

receiving a request to transmit said broadcast from a requester;

determining an approximate physical location of said requester; and

transmitting said broadcast over the Internet to said requester if said requester is physically located approximately within said defined distribution area.

17. The method as recited in claim 16, wherein said step of determining said approximate physical location of said requester comprises the steps of:

capturing an Internet Protocol of said requester;

converting said captured Internet Protocol of said requester into a computer name; and

performing a trace of said request.

18. The method as recited in claim 16, wherein said broadcast is not transmitted over the Internet to said requester if said requester is physically located approximately outside said defined distribution area.

19. A computer program product embodied in a machine readable medium for transmitting a broadcast over the Internet within a defined distribution area comprising the programming steps of:

receiving a request to transmit said broadcast from a requester;

determining an approximate physical location of said requester; and

transmitting said broadcast over the Internet to said requester if said requester is physically located approximately within said defined distribution area.

20. The computer program product as recited in claim 19, wherein said programming step of determining said approximate physical location of said requester comprises the programming steps of:

capturing an Internet Protocol of said requester;

converting said captured Internet Protocol of said requester into a computer name; and

performing a trace of said request.

21. The computer program product as recited in claim 19, wherein said broadcast is not transmitted over the Internet to said requester if said requester is physically located approximately outside said defined distribution area.

22. A system, comprising:

a processor; and

a memory unit coupled to said processor, wherein said memory unit is operable for storing a computer program operable for transmitting a broadcast over the Internet within a defined distribution area, wherein the computer program is operable for performing the following programming steps;

receiving a request to transmit said broadcast from a requester;

determining an approximate physical location of said requester; and

transmitting said broadcast over the Internet to said requester if said requester is physically located approximately within said defined distribution area.

23. The system as recited in claim 22, wherein said programming step of determining said approximate physical location of said requester comprises the programming steps of:

capturing an Internet Protocol of said requester;

converting said captured Internet Protocol of said requester into a computer name; and

performing a trace of said request.

24. The system as recited in claim 22, wherein said broadcast is not transmitted over the Internet to said requester if said requester is physically located approximately outside said defined distribution area.