WIRELESS TRANSMISSION SYSTEM

• US 20120314813A1
• Filed: 06/07/2012
• Published: 12/13/2012
• Est. Priority Date: 06/08/2011
• Status: Active Grant

• Current Assignee: Stmicroelectronics France (STMicroelectronics NV)
• Original Assignee: STMicroelectronics SA (STMicroelectronics NV), Universite de Lille 1
• Inventors: Pruvost, Sébastien, Loyez, Christophe, Foulon, Samuel, Rolland, Nathalie
• Granted Patent: US 9,762,276 B2
• Time in Patent Office: Days
• US Class Current: 375/322
• CPC Class Codes: H04B 1/24 the receiver comprising at least one semiconductor device having three or more electrodes
• CPC Class Codes: H04B 1/30 for homodyne or synchrodyne receivers demodulator circuits H03D1/22

Abstract

A wireless data transmitter including: a data modulator adapted to modulate a data signal based on a frequency signal; and at least one antenna adapted to wirelessly transmit the modulated data signal and the frequency signal independently.

Claims

1. A wireless data transmitter comprising:

a local oscillator adapted to generate an initial frequency signal;

a signal modulator adapted to generate a frequency signal by modulating said initial frequency signal based on a code signal;

a data modulator adapted to modulate a data signal based on said frequency signal; and

at least one antenna adapted to wirelessly transmit said modulated data signal and said frequency signal independently.

2. The wireless data transmitter of claim 1, wherein said data signal comprises I and Q quadrature components.

3. The wireless data transmitter of claim 1, wherein said at least one antenna is adapted to transmit said modulated signal using a first type of polarization, and said frequency signal using a second type of polarization different to said first polarization.

4. The wireless data transmitter of claim 3, wherein said first type of polarization is one of horizontal and vertical polarization, and said second type of polarization is the other of horizontal and vertical polarization.

5. The wireless data transmitter of claim 3, wherein said first type of polarization is one of clockwise and anti-clockwise circular polarization, and said second type of polarization is the other of clockwise and anti-clockwise circular polarization.

6. The wireless data transmitter of claim 1, wherein said at least one antenna is formed on a single antenna patch.

7. The wireless data transmitter of claim 1, wherein said at least one antenna comprises a first antenna adapted to wirelessly transmit said modulated data signal and a second antenna adapted to wirelessly transmit said frequency signal.

8. A wireless data receiver, comprising:

at least one antenna adapted to receive a modulated data signal and a frequency signal, the frequency signal corresponding to an initial frequency signal modulated based on a code signal; and

a data demodulator adapted to receive said modulated data signal and said frequency signal from said at least one antenna, and to demodulate said data signal based on said frequency signal.

9. A method of wireless data transmission comprising:

generating by a local oscillator an initial frequency signal;

generating by a signal modulator a frequency signal by modulating said initial frequency signal based on a code signal;

modulating by a data modulator a data signal based on said frequency signal; and

wirelessly transmitting said modulated data signal and said frequency signal via at least one antenna.

10. The method of claim 9, wherein said at least one antenna comprises a first antenna adapted to transmit said modulated data signal and a second antenna adapted to transmit said frequency signal.

11. A method of wireless data reception, comprising:

receiving, via at least one antenna, a modulated data signal and a frequency signal, the frequency signal corresponding to an initial frequency signal modulated based on a code signal; and

demodulating said modulated data signal based on said frequency signal.

12. The method of claim 12, wherein said at least one antenna comprises a first antenna adapted to receive said modulated data signal and a second antenna adapted to receive said frequency signal.