TDMA, spread spectrum RF agile filtered signal transmission
First Claim
1. A system comprising:
- a first baseband circuit for receiving a baseband signal and for providing a spread spectrum baseband signal;
a second baseband circuit for receiving a baseband signal and for providing a filtered baseband signal;
a third baseband circuit for receiving a baseband signal and for providing cross-correlated in-phase and quadrature-phase baseband signals;
baseband selector and connection device for selecting and connecting one or more of the spread spectrum, filtered or cross-correlated baseband signals to a transmitter; and
a transmitter for transmitting the baseband signal connected to the transmitter wherein said transmitter comprises a linearized amplifier for transmission of the spread spectrum signal and a non-linear amplifier for transmission of the cross-correlated in-phase and quadrature-phase signals.
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Abstract
Communication and broadcast system for Time Division Multiple Access (TDMA), spread spectrum, filtered signal and cross-correlated in-phase and quadrature-phase baseband signals for Radio Frequency (RF) tunable or RF agile transmitters. A selector and connection device provides selection and connection of one or more of the TDMA, spread spectrum, filtered or cross-correlated baseband signals and or modulated signals to a transmitter. A first baseband and or modulation circuit provides spread spectrum signal, a second baseband and or modulation circuit provides TDMA signal, a third circuit provides filtered and or cross-correlated baseband and or modulation signals to a selector for selecting either one or more modulated signals and providing the selected signals to the transmitter.
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Citations
36 Claims
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1. A system comprising:
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a first baseband circuit for receiving a baseband signal and for providing a spread spectrum baseband signal; a second baseband circuit for receiving a baseband signal and for providing a filtered baseband signal; a third baseband circuit for receiving a baseband signal and for providing cross-correlated in-phase and quadrature-phase baseband signals; baseband selector and connection device for selecting and connecting one or more of the spread spectrum, filtered or cross-correlated baseband signals to a transmitter; and a transmitter for transmitting the baseband signal connected to the transmitter wherein said transmitter comprises a linearized amplifier for transmission of the spread spectrum signal and a non-linear amplifier for transmission of the cross-correlated in-phase and quadrature-phase signals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system comprising:
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a baseband circuit for receiving a baseband signal and for providing a first bit rate spread spectrum, a second bit rate shaped and a third bit rate cross-correlated filtered in-phase and quadrature-phase baseband signal, wherein said first, second and third bit rate signals have distinct bit rates; and a baseband circuit and modulation device for processing, modulating and providing the first, second and third bit rate baseband signals to two or more distinct radio frequency (RF) transmitters for transmission of the processed and modulated signals. - View Dependent Claims (8, 9, 10, 11)
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12. A system comprising:
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a circuit and transmit filter for processing and filtering a baseband signal and for providing a first bit rate shaped spread spectrum, a second bit rate filtered and a third bit rate cross-correlated Gaussian filtered in-phase and quadrature-phase baseband signal; a circuit and modulation device for processing, modulating and providing the first, second and third bit rate baseband signals to a transmitter for transmission of the processed and modulated signals; and a receiver and demodulator for reception and demodulation of the first bit rate spread spectrum, second bit rate filtered and a third bit rate cross-correlated Gaussian filtered modulated and transmitted signal, said demodulator comprising a demodulator filter which is mis-matched to the transmit filter provides demodulated mis-match filtered cross-correlated in-phase and quadrature-phase baseband signals to an output circuit. - View Dependent Claims (13, 14, 15, 16)
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17. A system comprising:
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a baseband circuit for receiving a baseband signal and for providing a first bit rate spread spectrum cross-correlated in-phase and quadrature-phase filtered, a second bit rate filtered and a third bit rate cross-correlated in-phase and quadrature-phase filtered baseband signal to a modulator, wherein said first, second and third bit rate signals have distinct bit rates; and a modulator for receiving, modulating and providing the first, second and third bit rate baseband signals to one or more signal transmitters for transmission of one or more of the first, second or third bit rate modulated signals wherein said transmitters comprise a linearized amplifier for transmission of the spread spectrum signal and a non-linear amplifier for transmission of the cross-correlated in-phase and quadrature-phase signal. - View Dependent Claims (18)
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19. A method for comprising the steps of:
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receiving an input signal for providing a first bit rate spread spectrum signal; receiving and filtering an input signal for providing a second bit rate filtered signal; receiving an input signal for providing a third bit rate cross-correlated in-phase and quadrature-phase signals; and providing one or more of the spread spectrum, filtered or cross-correlated signals for amplification and transmission, wherein said first, second and third bit rates are distinct rates and linear amplification for transmission of the spread spectrum signal and non-linear amplification for transmission of the cross-correlated in-phase and quadrature-phase signals is used. - View Dependent Claims (20, 21, 22)
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23. A method comprising the steps of receiving and processing an input signal and providing a first bit rate spread spectrum, a second bit rate shaped Time Constrained Signal (TCS) and a third bit rate cross-correlated in-phase and quadrature-phase filtered processed signal;
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modulation and amplification of the first, second and third bit rate processed signal for transmission, wherein said modulated first and second bit rate signal is linearly amplified and third bit rate signal is non-linearly amplified (NLA). - View Dependent Claims (24, 25, 26)
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27. A method comprising the steps of:
- Receiving and processing an input signal and providing a processed first bit rate Time Division Multiple Access (TDMA), a second bit rate Orthogonal Frequency Division Multiplexed (OFDM) and a third bit rate filtered signal, wherein said first, second and third bit rates are distinct rates; and
modulation and amplification of the first, second and third bit rate processed signal for transmission, wherein said modulated first and third bit rate signal is amplified by a non-linearly amplified (NLA) method and said modulated second bit rate signal is amplified by a linearly amplified method. - View Dependent Claims (28, 29)
- Receiving and processing an input signal and providing a processed first bit rate Time Division Multiple Access (TDMA), a second bit rate Orthogonal Frequency Division Multiplexed (OFDM) and a third bit rate filtered signal, wherein said first, second and third bit rates are distinct rates; and
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30. A communication method comprising the steps of:
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receiving an input signal for providing a first bit rate Time Division Multiple Access (TDMA) signal; receiving an input signal for providing a second bit rate filtered signal; receiving an input signal for providing a third bit rate shaped Time Constrained Signal (TCS), wherein said first, second and third bit rates are distinct rates; and processing, modulating and providing the first, second and third bit rate processed and modulated signal for transmission in two or more distinct radio frequency (RF) bands. - View Dependent Claims (31, 32, 33)
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34. A method for transmitting multiple signals in a communication system, comprising the steps of:
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receiving an input signal for providing a first bit rate Gaussian shaped or Gaussian filtered signal used in Gaussian shaped or Gaussian filtered modulated systems; receiving an input signal for providing a second bit rate processed waveform used in Phase Shift Keying (PSK) modulated systems; receiving an input signal for providing a third bit rate Orthogonal Frequency Division Multiplexed (OFDM) signal, wherein said first, second and third bit rates are distinct rates; and modulation and amplification of the first, second and third bit rate processed signal, wherein said modulated first bit rate signal is amplified by a non-linearly amplified (NLA) method and modulated second and third bit rate signals are amplified by a linearly amplified method. - View Dependent Claims (35, 36)
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Specification