Transpositional modulation communications

• US 10,425,271 B2
• Filed: 01/26/2018
• Issued: 09/24/2019
• Est. Priority Date: 04/26/2016
• Status: Active Grant

• Current Assignee: TM IP Holdings LLC
• Original Assignee: TM IP Holdings LLC
• Inventors: Gerdes, Richard C., Hodges, Daniel L., McIntosh, Quinn Colin
• Primary Examiner(s): Guarino, Rahel
• Application Number:
  US15/880,732
• Publication Number:
  US 20180152332A1
• Time in Patent Office: 606 Days
• CPC Class Codes: H04L 2027/0051 Harmonic tracking
• CPC Class Codes: H04L 27/0008 arrangements for allowing a transmitter or receiver to use more than one type of modulation negotiating modulation type for two-way transmission paths H04L5/1453
• CPC Class Codes: H04L 27/10 Frequency-modulated carrier systems, i.e. using frequency-shift keying H04L27/32 takes precedence
• CPC Class Codes: H04L 27/122 using digital generation of carrier signals digital function generators G06F1/02, H04L17/10; generating pulses having stepped portions using digital techniques H03K4/026
• CPC Class Codes: H04L 27/18 Phase-modulated carrier systems, i.e. using phase-shift keying H04L27/32 takes precedence
• CPC Class Codes: H04L 27/32 Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
• CPC Class Codes: H04L 27/345 Modifications of the signal space to allow the transmission of additional information
• CPC Class Codes: H04L 27/36 Modulator circuits; Transmitter circuits

Abstract

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for receiving, by a first device, a first signal from a second device, the first signal including a carrier signal modulated with a first modulation signal. Detecting a frequency of the carrier signal by performing a carrier extraction (CAREX) process on the first signal. Adding a second modulation signal to the carrier signal of the first signal to produce a combined signal, wherein the second modulation signal is a transpositional modulation (TM) signal and the first modulation signal is a non-TM signal. Transmitting the combined signal.

Claims

1. An electronic communication device comprising:

a radio coupled to a computer system of a vehicle, the radio comprising;

a signal receiver, and

a signal transmitter,

wherein the radio is configured to perform operations comprising;

receiving a first signal from a second device, the first signal including a carrier signal modulated with a first modulation signal;

adding a second modulation signal to the carrier signal of the first signal to produce a combined signal, wherein the second modulation signal is a transpositional modulation (TM) signal and the first modulation signal is a non-TM signal, the second modulation signal including information associated with the vehicle; and

transmitting the combined signal.

2. The electronic communication device of claim 1, wherein the information associated with the vehicle comprises at least one of engine data, tire pressure, location information, or speed.

3. The electronic communication device of claim 1, wherein vehicle is a shipping vehicle.

4. The electronic communication device of claim 3, wherein the information associated with the vehicle comprises at least one of location information, vehicle identification, course, speed, cargo information, shipping origin, shipping destination.

5. The electronic communication device of claim 1, wherein the operations further comprise detecting a frequency of the carrier signal by performing a carrier extraction (CAREX) process on the first signal.

6. The electronic communication device of claim 1, wherein adding the second modulation signal to the carrier signal comprises:

modulating a third harmonic signal of the carrier signal of the first signal with data to produce the second modulation signal; and

combining the second modulation signal with the first signal.

7. The electronic communication device of claim 1, wherein adding the second modulation signal to the carrier signal comprises:

generating a second harmonic signal of the carrier signal and a third harmonic signal of the carrier signal;

modulating the third harmonic signal with a data signal;

mixing the modulated third harmonic signal with the second harmonic signal to produce the second modulation signal; and

combining the second modulation signal with the first signal.

8. The electronic communication device of claim 7, wherein the operations further comprise synchronizing a phase of the second modulation signal with a phase of the first signal.

9. The electronic communication device of claim 1, wherein the first modulation signal is one of phase modulation, frequency modulation, binary phase shift keying, quadrature phase-shift keying, amplitude modulation, or quadrature amplitude modulation.

10. The electronic communication device of claim 5, wherein detecting the frequency of the carrier signal comprises:

detecting a center frequency of the first signal;

detecting a frequency of a third signal;

determining a difference signal between the center frequency of the first signal and the frequency of the third signal;

modifying the frequency of the third signal based on the difference signal to provide the carrier signal.

11. A method comprising:

receiving, by a radio system of a vehicle, a first signal from a broadcast signal source, the first signal including a carrier signal modulated with a first modulation signal;

receiving, by the radio system, information associated with the vehicle;

encoding, by the radio system, the information in a second modulation signal;

adding, by the radio system, the second modulation signal to the carrier signal of the first signal to produce a combined signal, wherein the second modulation signal is a transpositional modulation (TM) signal and the first modulation signal is a non-TM signal; and

transmitting, by the radio system, the combined signal.

12. The method of claim 11, wherein the information associated with the vehicle comprises at least one of engine data, tire pressure, location information, or speed.

13. The method of claim 11, wherein vehicle is a shipping vehicle.

14. The method of claim 13, wherein the information associated with the vehicle comprises at least one of location information, vehicle identification, course, speed, cargo information, shipping origin, shipping destination.

15. The method of claim 11, further comprising detecting a frequency of the carrier signal by performing a carrier extraction (CAREX) process on the first signal.

16. The method of claim 11, wherein adding the second modulation signal to the carrier signal comprises:

modulating a third harmonic signal of the carrier signal of the first signal with data to produce the second modulation signal; and

combining the second modulation signal with the first signal.

17. The method of claim 11, wherein adding the second modulation signal to the carrier signal comprises:

generating a second harmonic signal of the carrier signal and a third harmonic signal of the carrier signal;

modulating the third harmonic signal with a data signal;

mixing the modulated third harmonic signal with the second harmonic signal to produce the second modulation signal; and

combining the second modulation signal with the first signal.

18. The method of claim 17, further comprising synchronizing a phase of the second modulation signal with a phase of the first signal.

19. The method of claim 11, wherein the first modulation signal is one of phase modulation, frequency modulation, binary phase shift keying, quadrature phase-shift keying, amplitude modulation, or quadrature amplitude modulation.

20. The method of claim 15, wherein detecting the frequency of the carrier signal comprises:

detecting a center frequency of the first signal;

detecting a frequency of a third signal;

determining a difference signal between the center frequency of the first signal and the frequency of the third signal;

modifying the frequency of the third signal based on the difference signal to provide the carrier signal.