IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0323976
(2005-12-30)
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등록번호 |
US-7440488
(2008-10-21)
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발명자
/ 주소 |
|
출원인 / 주소 |
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인용정보 |
피인용 횟수 :
55 인용 특허 :
119 |
초록
▼
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 connect
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.
대표청구항
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What is claimed is: 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
What is claimed is: 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. 2. The system as in claim 1 wherein the filtered baseband signal is a Time Division Multiple Access (TDMA) signal. 3. The system as in claim 1 wherein the transmitter comprises a modulator for modulating the baseband signal to tunable radio frequencies. 4. The system as in claim 1 wherein the spread spectrum signal is a Code Division Multiple Access (CDMA) signal. 5. The system as in claim 1 wherein the spread spectrum signal is a Collision Sense Multiple Access (CSMA) signal. 6. The system as in claim 1 wherein the cross-correlated signals are Gaussian filtered baseband signals. 7. A system comprising: 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. 8. The system as in claim 7 wherein the cross-correlated filtered in-phase and quadrature-phase baseband signal is a Time Division Multiple Access (TDMA) signal. 9. The system as in claim 7 wherein the second bit rate shaped signal is generated by a Time Constrained Signal (TCS) processor processed waveform connected to a Long Response (LR) filter and a signal peak limiting device which limits the peaks of the filtered baseband signal. 10. The system as in claim 7 wherein the first bit rate spread spectrum signal is a Code Division Multiple Access (CDMA) signal. 11. The system as in claim 7 wherein the transmitters for transmission of the processed and modulated signals 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. 12. A system comprising: 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. 13. The system as in claim 12 wherein the third bit rate cross-correlated Gaussian filtered in-phase and quadrature-phase baseband signal is a Time Division Multiple Access (TDMA) signal. 14. The system as in claim 12 wherein the 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. 15. The system as in claim 12 wherein the second bit rate filtered signal is a multilevel baseband signal. 16. The system as in claim 12 wherein the demodulated mis-match filtered cross-correlated in-phase and quadrature-phase baseband signals are Time Division Multiple Access (TDMA) signals. 17. A system comprising: 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. 18. The system as in claim 17 wherein the third bit rate cross-correlated in-phase and quadrature-phase filtered baseband signal is a Time Division Multiple Access (TDMA) signal. 19. A method for comprising the steps of: 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. 20. The method of claim 19, further including shaping or filtering of said cross-correlated in-phase and quadrature-phase signals into Gaussian shaped or Gaussian filtered cross-correlated in-phase and quadrature-phase signals. 21. The method of claim 19, further including processing and filtering said first bit rate spread spectrum signal into processed cross-correlated in-phase and quadrature-phase filtered signals, and processing and filtering said third bit rate cross-correlated in-phase and quadrature-phase signals into Gaussian shaped or Gaussian filtered cross-correlated in-phase and quadrature-phase signals. 22. The method of claim 19, wherein said spread spectrum signal is modulated and linearly amplified and said cross-correlated in-phase and quadrature-phase signals are modulated and non-linearly amplified. 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; and 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). 24. The method of claim 23, further including processing of said first bit rate spread spectrum signal into processed cross-correlated in-phase and quadrature-phase spread spectrum signal and said second bit rate shaped Time Constrained Signal (TCS) into cross-correlated in-phase and quadrature-phase Orthogonal Frequency Division Multiplexed (OFDM) signal. 25. The method of claim 23, wherein said third bit rate cross-correlated in-phase and quadrature-phase filtered processed signal is an in-phase and quadrature-phase Gaussian shaped waveform or an in-phase and quadrature-phase Gaussian filtered signal. 26. The method of claim 23, wherein said third bit rate cross-correlated in-phase and quadrature-phase filtered processed signal is a Gaussian processed waveform. 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. 28. The method of claim 27, further including processing said TDMA signal into cross-correlated in-phase and quadrature-phase Gaussian shaped waveform. 29. The method of claim 27, further including processing of said TDMA and OFDM signal into processed cross-correlated in-phase and quadrature-phase signals. 30. A communication method comprising the steps of: 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. 31. The method of claim 30, further including processing and filtering said TDMA signal into processed cross-correlated in-phase and quadrature-phase Gaussian filtered signals. 32. The method of claim 30, wherein said transmission in two or more distinct radio frequency (RF) bands is by amplification of said first bit rate modulated signal by a non-linearly amplified (NLA) method and is by amplification of said second bit rate modulated signal by a linearly amplified method. 33. The method of claim 30, wherein said first bit rate TDMA signal is processed into cross-correlated in-phase and quadrature-phase signal and said second bit rate filtered signal is processed into cross-correlated in-phase and quadrature-phase Orthogonal Frequency Division Multiplexed (OFDM) signal. 34. A method for transmitting multiple signals in a communication system, comprising the steps of: 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. 35. The method of claim 34, wherein said Gaussian shaped or Gaussian filtered signal is processed into cross-correlated in-phase and quadrature-phase waveforms. 36. The method of claim 34, wherein said second bit rate processed waveform is a cross-correlated in-phase and quadrature-phase waveform used in spread spectrum communication methods.
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