Modulation and demodulation format selectable system
Patent 7133456 Issued on November 7, 2006. Estimated Expiration Date: July 24, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
375/259, SYSTEMS USING ALTERNATING OR PULSATING CURRENT375/296, Antinoise or distortion (includes predistortion)375/261, Quadrature amplitude modulation375/308, Phase shift keying348/478, During vertical blanking375/267, Diversity332/103, PHASE SHIFT KEYING MODULATOR OR QUADRATURE AMPLITUDE MODULATOR370/208, Particular set of orthogonal functions375/368, Synchronizer pattern recognizers455/126, With feedback of modulated output signal370/335, Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)375/130, SPREAD SPECTRUM370/207, Having a signaling constellation370/342, Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA)455/127.1, Power control, power supply, or bias voltage supply375/269, With phase or frequency shift keying455/553.1, Radiotelephone having plural transceivers (e.g., for analog and digital, trunking and cellular, etc.)375/260, Plural channels for transmission of a single pulse train375/295TRANSMITTERS
Modulation Demodulation (Modem) Format Selectable (MFS) and Code Selectable (CS) systems for new generations of wireless systems, including third generation “3G”, spread spectrum systems, CDMA,W-CDMA and GSM, OFDM systems having different bit rates, that is having bit rate selection or bit rate agile( BRA) operation. MFS and Code Selectable (CS) systems connected to one or more modulators, one or more transmit amplifiers and one or more antennas. The transmitted signals are received by single or multiple receivers and demodulators.Shaped Time Constrained Signal(TCS) wavelet processors and bit rate agile Long Response (LR) filters provide shaped Time Constrained Signal (TCS) waveforms/filtered signals in in-phase(I) and quadrature-phase(Q) baseband channels to one or more Quadrature Modulators(QM) connected to the baseband signal processing network. A control processor and signal selection device selects one or more of the baseband signals and provides these signals through one or more quadrature modulators(QM) having the same or different radio frequency(RF) signals for amplification by one or more amplifiers. A selection device for selecting a Linearly and/or a Non-Linearly Amplified (NLA) modulated signal is provided and the selected amplified signal is provided to one or more transmit antenna systems or to one or more transmission media.
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July 24, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
