Location finder, tracker, communication and remote control system

• US 7,260,369 B2
• Filed: 08/03/2005
• Issued: 08/21/2007
• Est. Priority Date: 08/03/2005
• Status: Active Grant

• Current Assignee: Kamilo Feher
• Original Assignee: Kamilo Feher
• Inventors: Feher, Kamilo
• Primary Examiner(s): AJAYI, JOEL
• Application Number:
  US11/197,610
• Publication Number:
  US 20070032250A1
• Time in Patent Office: 748 Days
• Field of Search: 455/456.1, 455/456.2
• US Class Current: 455/133
• 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 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 5/40 Modulation circuits
• CPC Class Codes: H04N 7/20 Adaptations for transmission via a GHz frequency band, e.g. via satellite
• CPC Class Codes: H04W 84/06 Airborne or Satellite Networks space-based or airborne stations H04B7/185

Abstract

A radio frequency identification (RFID) device, locator, wired and/or wireless communicator system comprising one or more than one antennas for receiving Radio Frequency (RF) signals from one or more RFID and or location determining and/or communication transmitters. The system has one or more receivers and demodulators for reception and demodulation of signals to baseband signals. A processor circuit processes the baseband signals and provides them to a cross-correlator circuit for cross-correlating the processed baseband signals and for generation of cross-correlated baseband signals. One or more modulators modulate the baseband signals and provide them to one or more transmitters. circuitry.

Claims

1. A location finder and modulation-demodulation (modem) format selectable (MFS) and bit rate agile (BRA) communication system comprising:

two or more receive ports for receiving location determining signals from two or more location determining transmitters;

two or more receivers and demodulators for reception and demodulation of said location determining signals to baseband signals;

a selector for selection of one or more of the baseband signals;

a cross-correlator circuit for processing the selected baseband signal and for generation of first bit rate in-phase and quadrature-phase cross-correlated baseband signals;

a shaped Time Constrained Signal (TCS) wavelet processor and Long Response (LR) lifter for processing and filtering the selected baseband signal and for providing second bit rate shaped and filtered signals in in-phase and quadrature-phase baseband channels;

a modulation-demodulation (modem) format selectable or code selectable baseband structure for providing either modem format selectable or code selectable first bit rate cross-correlated signals or second bit rate processed and filtered in-phase and quadrature-phase baseband signals to a modulator;

a modulator for quadrature modulation of the first bit rate and of the second bit rate baseband signals;

two or more amplifiers comprising linear and/or nonlinear circuits for linear and/or non-linear amplification (NLA) of the modulated output signal; and

a switch or level controller for selecting linearly or non-linearly amplified (NLA) modulated signals and for providing selected amplified signals to one or more signal transmitters; and

two or more signal transmitters for signal transmission comprising of a first transmitter using a first radio frequency (RF) band and a second transmitter using a second RF band, wherein first and second RF bands occupy different RF bands.

2. The system of claim 1 wherein said shaped Time Constrained Signal (TCS) wavelet processor and bit rate agile Long Response (LR) filter for providing shaped and filtered signals in in-phase and quadrature-phase baseband channels provide Gaussian shaped and filtered in-phase and quadrature-phase baseband signals.

3. A location finding and communication system comprising:

two or more receive ports for receiving either location finding signals and or other than location finding signals from either one or more location determining transmitters or from one or more other than location finding signal transmitters;

one or more receivers and demodulators for receiving and demodulating said location finding signals to baseband signals;

one or more receivers and demodulators for receiving and demodulating said other than location finding signals to baseband signals;

a selector or combiner device for selection or combining of one or multiple baseband signals;

two or more signal modulators;

connection circuitry for connecting the selected or the combined single or multiple baseband signals to one or more of said signal modulators;

a signal processing network for receiving the baseband signals from the connection circuitry and for providing cross-correlated in-phase and quadrature-phase baseband signals at a first specified bit rate;

a signal processing network for receiving the selected or combined baseband signal and for providing a filtered signal at a second specified bit rate; and

a selector for selecting either the cross-correlated signals, the filtered signal, or both the cross-correlated signals and the filtered signal; and

connection for providing the selected signals to one or more modulators for signal modulation.

4. The system of claim 3 wherein said signal processing network for receiving the selected or combined baseband signal and for providing a filtered signal at a second specified bit rate comprises an Orthogonal Frequency Division Multiplexed (OFDM) signal.

5. The system of claim 3 wherein said signal processing network for receiving the selected or combined baseband signal and for providing a filtered signal at a second specified bit rate comprises a spread spectrum signal.

6. A location finder and communication system comprising:

two or more antennas for receiving modulated Radio Frequency (RF) location finder signals and communication signals from three or more location finder and communication system transmitters;

two or more receivers and demodulators for reception and demodulation of said modulated RF signals to baseband signals;

a signal processing network for receiving said baseband signals and for providing cross-correlated in-phase and quadrature-phase baseband signals at a first specified bit rate;

a signal processing network for receiving said baseband signals and for providing a filtered signal at a second specified bit rate;

a selector for selecting either the cross-correlated signals or the filtered signal or both the cross-correlated signals and the filtered signal;

a connection circuit for providing the selected signals to one or more than one modulators for signal modulation; and

a connection circuit for providing the modulated signals to two or more than two amplifiers and two or more than two antennas for amplification and transmission of the amplified modulated signals.

7. A location finder and communication system comprising:

one or more receive ports for receiving modulated location finder signals from one or more location finder and communication system transmitters;

one or more receivers and demodulators for reception and demodulation of said modulated signals to baseband signals;

a signal processing network for receiving said baseband signals and for providing cross-correlated in-phase and quadrature-phase baseband signals at a first specified bit rate;

a first quadrature modulator for quadrature modulating the cross-correlated signal;

a filter for filtering a second bit rate signal, said second bit rate signal having a different bit rate than the first bit rate signal, and providing a filtered baseband signal;

a second modulator for modulating the filtered baseband signal; and

switch circuitry for selecting and connecting either the cross-correlated first bit rate modulated signal or the filtered second bit rate modulated signal to a transmitter.

8. A location finder and bit rate selectable communication system comprising:

two or more than two receivers and two or more than two demodulators for reception and demodulation of a modulated Global Positioning System (GPS) signal, of a modulated first bit rate Orthogonal Frequency Division Multiplexed (OFDM) signal and of a modulated second bit rate filtered signal to baseband signal, wherein said first and second bit rate signals have different bit rates from each other;

a baseband processor for receiving and processing the demodulated GPS baseband signal with the first bit rate OFDM baseband signal or the demodulated GPS baseband signal with the second bit rate filtered baseband signal;

a baseband selector for selecting and providing the processed GPS with the first bit rate OFDM baseband signal or the GPS with the second bit rate filtered baseband signal to a signal modulator for modulating the selected signal and for providing the selected modulated signal to a signal transmitter for signal transmission and;

a receiver and demodulator system for receiving and demodulating the selected processed GPS with the first bit rate OFDM modulated signal and for receiving and demodulating the selected GPS with the second bit rate filtered modulated signal, wherein said demodulator system for demodulating the selected GPS with the second bit rate filtered modulated signal is a quadrature demodulator and said quadrature demodulator provides demodulated baseband cross-correlated filtered in-phase and quadrature-phase signals comprising filters which are mis-matched to second bit rate filters for filtering second bit rate baseband signal to signal modulator.

9. The system of claim 8 wherein said second bit rate filtered baseband signal is a cross-correlated in-phase and quadrature-phase filtered baseband signal.

10. A location finder and communication system comprising:

a first receiver for reception and demodulation of a modulated Global Positioning System (GPS) signal to a baseband signal;

a second receiver for reception and demodulation of a modulated Orthogonal Frequency Division Multiplexed (OFDM) signal to a baseband signal;

a third receiver for reception and demodulation of a modulated Time Division Multiple Access (TDMA) signal to a baseband signal;

a baseband processor for receiving, processing and providing the received and processed OFDM baseband signal with the GPS baseband signal or for processing and providing the received and processed TDMA baseband signal with the GPS baseband signal to a baseband signal selector; and

a baseband signal selector for selecting and providing the selected processed OFDM baseband signal with the GPS baseband signal, or the selected processed TDMA baseband signal with the GPS baseband signal to a signal modulator for modulation of the selected baseband signal, wherein said processed TDMA baseband signal with the GPS baseband signal comprises cross-correlated in-phase and quadrature-phase baseband signals.

11. The system of claim 10 wherein said third receiver for reception and demodulation of a modulated Time Division Multiple Access (TDMA) signal to a baseband signal comprises cross-correlated h-phase and quadrature-phase filtered baseband signals.

12. A position finder and communication system comprising:

a first receiver and a first processor for receiving and processing signals received on a wire or on a cable connection and for providing processed baseband signals;

a second processor for receiving said processed baseband signals for processing and providing Orthogonal Frequency Division Multiplexed (OFDM) baseband signals to a first signal modulator and transmitter for modulation and transmission of the OFDM signals;

a second receiver for receiving and demodulating the modulated and transmitted OFDM signal to OFDM baseband signals or for providing OFDM demodulated signals to a third processor for processing the said OFDM demodulated signals with baseband signals generated by a fourth and a fifth processor;

a third receiver and fourth baseband processor for receiving and demodulating Gaussian Minimum Shill Keying (GMSK) modulated signals and for providing demodulated GMSK signals to said third processor;

a fourth receiver and fifth baseband processor for receiving and demodulating modulated position finder signals to position finder baseband signals and for providing said position finder baseband signals to said third processor;

a selector for selection of the third processor processed signals with the fourth and fifth processor signals and for providing the selected signals to a second signal modulator for signal modulation and connection to a signal transmitter system; and

a signal transmitter system, comprising of two or more signal transmitters operated at different radio frequency (RF) bands, for signal transmission.

13. The system of claim 12 wherein said third receiver and fourth baseband processor for receiving and demodulating Gaussian Minimum Shift Keying (GMSK) modulated signals and for providing demodulated GMSK signals to said third processor provides cross-correlated in-phase and quadrature-phase filtered baseband signals.

14. A system comprising:

two or more than two receivers and two or more than two demodulators for reception and demodulation of a modulated Global Positioning System (GPS) signal, of a modulated first bit rate Orthogonal Frequency Division Multiplexed (OFDM) signal and of a modulated second bit rate Gaussian Minimum Shift Keying (GMSK) modulated signal and of a modulated third bit rate spread spectrum signal to baseband signals;

a baseband processor for receiving and processing the demodulated GPS baseband signal with the OFDM or with the GMSK or with the spread baseband signal and providing the processed signals to a baseband signal selector for signal selection and connection to two or more modulators for signal modulation of the selected processed signal;

a first modulator for receiving and baseband processing the selected GPS baseband signal with the GMSK baseband signal and for providing baseband processed cross-correlated h-phase and quadrature-phase baseband signals for quadrature modulation to said first modulator;

a second modulator for receiving and baseband processing the selected GPS baseband signal with the spread spectrum baseband signal or with the OFDM baseband signal and for providing baseband processed cross-correlated in-phase and quadrature-phase spread spectrum baseband signals or OFDM baseband signal for quadrature modulation to said second modulator; and

a connection circuit for providing either the first modulated signal or the second modulated signal or both modulated signals to a transmitter.

15. The system of claim 14 wherein said baseband processed cross-correlated h-phase and quadrature-phase spread spectrum baseband signals are cross-correlated CDMA in-phase and quadrature-phase spread spectrum baseband signals.