System for simultaneously transmitting multiple RF signals using a composite waveform

• US 20060063490A1
• Filed: 09/09/2005
• Published: 03/23/2006
• Est. Priority Date: 03/12/2003
• Status: Abandoned Application

• Current Assignee: Benjamin L. Goodman, David M. Bader, John E. Rylander, Rickie A. Sprague, Steven F. Starcke
• Original Assignee: Benjamin L. Goodman, David M. Bader, John E. Rylander, Rickie A. Sprague, Steven F. Starcke
• Inventors: Starcke, Steven F., Rylander, John E., Goodman, Benjamin L., Bader, David M., Sprague, Rickie A.
• Application Number:
  US11/223,668
• Publication Number:
  US 20060063490A1
• Time in Patent Office: Days
• US Class Current: 455/45
• CPC Class Codes: H04B 1/0483 Transmitters with multiple parallel paths
• CPC Class Codes: H04B 7/0697 using spatial multiplexing
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/46 specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
• CPC Class Codes: H04H 20/63 to plural spots in a confined site, e.g. MATV [Master Antenna Television]
• CPC Class Codes: H04H 20/72 of terrestrial networks

Abstract

A digitally controlled media multicasting system containing a signal processing system accepting and optionally modifying one or more independent single- or multi-channel baseband signals (typically, but by no means necessarily, audio or video signals); amplitude-, frequency-, or phase-modulating specified RF, IF, or LF carrier wave(s) in accord with said baseband signal(s); and then compositing the modulated carrier waves into a smaller quantity of waveform(s), said waveform(s) being (as necessary) frequency-multiplied or -shifted, and amplified for wireless transmission.

Claims

1. A local multi-casting system comprising:

means to receive media input;

means to simultaneously wirelessly broadcast a plurality of media signals without interleaving the media signals in transmission; and

means to digitally control receipt and broadcast of media via software.

2. The system of claim 1 further comprising:

wireless broadcast a plurality of media signals using legacy radio frequencies and encoded in legacy modulation formats.

3. The system of claim 1 further comprising:

wireless broadcast of a plurality of media signals using 900-MHz-range radio frequencies.

4. The system of claim 1 further comprising:

wireless broadcast of a plurality of media signals using 2400-MHz-range radio frequencies.

5. The system of claim 1 further comprising:

wireless broadcast of a plurality of media signals using 5700-MHz-range radio frequencies.

6. The system of claim 1 further comprising:

wireless broadcast of a plurality of media signals using 24000-MHz-range radio frequencies.

7. The system of claim 1 further comprising:

means to store received media;

means to digitally control playback of stored media via software.

8. The system of claim 7 further comprising:

means to arrange timing, destination, and specific content of media broadcast via software.

9. The system of claim 1 further comprising:

at least one receiver'"'"'s using a high-gain receiving antenna oriented to receive the system'"'"'s wireless broadcast.

10. A digitally controlled signal processing system including:

at least two independent baseband input signals;

at least one digital processor substantially controlling the signal processing;

at least one algorithm, each used by at least one digital processor (“

processor”

), controlling in conjunction with associated hardware at least one modulated carrier wave in accord with at least one selected modulation format as applied to at least one baseband input signal;

means for processing a plurality of modulation formats;

means for simultaneously processing at least two simple modulated carrier waves of different frequencies; and

means to sum at least two of the modulated carrier waves of different frequencies to create at least one composite supercarrier modulated carrier wave.

11. The system of claim 12, also including a means of amplifying the composite supercarrier prior to transmission.

12. The system of claim 10, also including a means of wireless transmission.

13. The system of claim 10, wherein the means of wireless transmission is via electromagnetic radiation.

14. The system of claim 10 with at least one analog-to-digital converter translating analog input into digital for at least one processor'"'"'s input.

15. The system of claim 10, also including at least one digital-to-analog converter intervening between at least one processor and the summer.

16. The system of claim 10 in which the summer comprises software programming.

17. The system of claim 10 in which the summer comprises hardware.

18. The system of claim 10, also including at least one algorithm, each used by at least one processor, to digitally create via output sampling at least one modulated carrier wave.

19. The system of claim 10, also including at least one algorithm used by at least one processor, to create the parameters needed by a DS/NCO.

20. The system of claim 10 also including at least one algorithm used by at least one processor to create the parameters needed by a VCO.