System and method for individualized broadcasts on a general use broadcast frequency

• US 7,020,104 B2
• Filed: 07/16/2001
• Issued: 03/28/2006
• Est. Priority Date: 07/16/2001
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Bay, Fm
• Primary Examiner(s): Patel, Ajit
• Application Number:
  US09/904,911
• Publication Number:
  US 20030012153A1
• Time in Patent Office: 1,716 Days
• Field of Search: 370/316, 370/320, 370/326, 370/335, 370/342, 370/315, 370/390, 370/441, 370/432, 370/343, 370/310, 455/12.1, 725/63, 725/71
• US Class Current: 370/316
• CPC Class Codes: G01S 19/02 Details of the space or ground control segments
• CPC Class Codes: H04H 2201/70 characterised in that receivers can be addressed
• CPC Class Codes: H04H 60/15 on receiving information
• CPC Class Codes: H04H 60/71 using meteorological information
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A system and method of individualizing a general broadcast by combining a user identifier with a message and encoding the combination with a user specific code. Also, source identifiers can be added to the encoded combination, and the result again encoded and broadcast via a general broadcast system.

Claims

1. A method of individualizing a general broadcast signal, comprising:

combining a user identifier and a message to form a first message layer signal;

encoding the first message layer signal;

combining a first source identifier with the encoded first message layer signal to form a second message layer signal; and

encoding the second message layer signal.

2. A method of individualizing a general broadcast signal according to claim 1, further comprising:

combining a second source identifier with the encoded second message layer signal to form a third message layer signal;

encoding the third message layer signal.

3. A method of individualizing a general broadcast signal according to claim 1, wherein the encoding of at least one of the first and second message layer signals includes code division multiples access encoding.

4. A method of individualizing a general broadcast signal according to claim 2, wherein the encoding of the third message layer signals includes code division multiples access encoding.

5. A method of individualizing a general broadcast signal according to claim 1, further comprising:

receiving the encoded second message layer signal;

decoding the encoded second message layer signal; and

decoding the encoded first message layer signal.

6. A method of individualizing a general broadcast signal according to claim 2, further comprising:

receiving the encoded third message layer signal;

decoding the encoded third message layer signal; and

decoding the encoded second message layer signal;

decoding the encoded first message layer.

7. A method of individualizing a general broadcast signal according to claim 5, wherein the decoding of at least one of the first and second message layers signals includes code division multiples access decoding.

8. A method of individualizing a general broadcast signal according to claim 6, wherein the decoding of at least one of the first, second, third message layer signals includes code division multiples access decoding.

9. A system for individualizing a general broadcast signal, comprising:

first logic apparatus, operatively connected to receive and to concatenate a user identifier and a message to form a first message layer signal;

first encoder, operatively connected to first logic apparatus to encode the first message layer signal;

second logic apparatus, operatively connected to receive and concatenate a first source identifier with the encoded first message layer signal to form a second message layer signal; and

second encoder, operatively connected to the second logic apparatus to encode the second message layer signal.

10. A system for individualizing a general broadcast signal according to claim 9, further comprising:

third logic apparatus, operatively connected to receive and concatenate a second source identifier with the encoded second message layer signal to form a third message layer signal; and

third encoder, operatively connected to the third logic apparatus to encode the third message layer signal.

11. A system for individualizing a general broadcast signal according to claim 9, wherein the first and second encoders comprise code division multiplex access encoders.

12. A system for individualizing a general broadcast signal according to claim 10, wherein the third encoder comprises a code division multiplex access encoder.

13. A system for individualizing a general broadcast signal according to claim 9, further comprising:

a general broadcast receiver operatively connected to receive the encoded second message layer signal;

a first decoder operatively connected to decode the encoded second message layer signal; and

a second decoder operatively connected to decode the encoded first message layer signal.

14. A system for individualizing a general broadcast signal according to claim 10, further comprising:

a general broadcast receiver operatively connected to receive the encoded third message layer signal;

a first decoder operatively connected to decode the encoded third message layer signal;

a second decoder operatively connected to decode the encoded second message layer signal; and

a third decoder operatively connected to decode the encoded first message layer.

15. A system for individualizing a general broadcast signal according to claim 13, wherein at least one of the first and second decoders includes a code division multiples access decoder.

16. A system for individualizing a general broadcast signal according to claim 14, wherein at least one of the first, second, third decoders include a code division multiples access decoder.