Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 3 - Gain control in amplifiers or frequency changers
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
12/2003
12/18/2003US20030231127 Signal processing system and method
12/18/2003US20030231059 Variable gain amplifier
12/18/2003CA2488750A1 Method and system for all digital gain control
12/18/2003CA2488740A1 System and method for a direct conversion multi-carrier processor
12/18/2003CA2488689A1 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
12/17/2003EP1372361A1 Method and apparatus for generating a periodic waveform
12/17/2003EP1372261A1 Control loop apparatus, current measuring circuit apparatus and methods therefor
12/17/2003EP0852844B1 Circuit arrangement comprising a power amplifier stage
12/11/2003WO2003103162A1 Transmitter and wireless communication apparatus using the transmitter
12/11/2003WO2003103141A1 Differential amplifier, two-stage amplifier having that differential amplifier, and analog/digital converter having that two-stage amplifier
12/11/2003WO2003103137A1 Amplification device
12/11/2003WO2003103109A2 Power amplifiers
12/11/2003WO2003005564A3 Method for adjusting the amplification of a high frequency signal
12/11/2003WO2002067420A3 Direct conversion receiver architecture
12/11/2003US20030228877 Method for controlling signal power in transmitter of radio system, and transmitter of radio system
12/11/2003US20030228853 Method and system for all digital gain control
12/11/2003US20030228852 Semiconductor integrated circuit device and wireless communication system
12/11/2003US20030228024 Shock sound prevention circuit
12/11/2003US20030227303 LVDS driver in bipolar and MOS technology
12/10/2003EP1369993A1 LVDS-driver in bipolar and MOS technology
12/10/2003EP1369992A2 Amplifier and radio frequency tuner
12/10/2003EP0824794B1 Funkempfänger mit RF Verstärker
12/10/2003CN1461522A Transmitter architectures for communications systems
12/10/2003CN1130819C Apparatus and method of linearizing power amplifier mobile radio communication system
12/09/2003US6662018 Analog power control system for a multi-carrier transmitter
12/09/2003US6661287 Automatic gain control circuit and control method
12/09/2003CA2337605C Sound processing apparatus
12/04/2003WO2003030356A3 Automatic gain control circuit and an rf receiver and method using such a circuit
12/04/2003WO2003005574A3 A communication system and arrangements comprising such a communication system
12/04/2003US20030224749 Semiconductor integrated circuit device for communication
12/04/2003US20030223595 Shock sound prevention circuit
12/04/2003US20030223510 Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method
12/04/2003US20030222716 Operational transconductance amplifier and AGC amplifier using the same
12/03/2003EP1366566A2 Gain linearizer for variable gain amplifiers
12/03/2003EP1366564A2 Device for the noise-dependent adjustment of sound volumes
12/03/2003CN1459926A Power amplifier capable of inhibiting noise power of receiving band and gain switching
12/02/2003US6658243 High frequency power amplifying apparatus having amplifying stages with gain control signals of lower amplitudes applied to earlier preceding stages
12/02/2003US6658122 Method for in-situ measuring and in-situ correcting or adjusting a signal process in a hearing aid with a reference signal processor
12/02/2003US6658120 Polarity-independent transmission system
12/02/2003US6658069 Automatic gain control circuit and control method therefor
12/02/2003US6657498 Variable gain low-noise amplifier for a wireless terminal
12/02/2003US6657491 System and method for activating gain stages in an amplification module
12/02/2003US6657486 MOS differential amplifier circuit having a wide linear input voltage range
12/02/2003US6657485 Linear voltage subtractor/adder circuit and MOS differential amplifier circuit therefor
12/02/2003CA2314555C Signal notching system for limiting signal peaks
11/2003
11/27/2003WO2002089312A3 Frequency conversion by undersampling
11/27/2003WO2002060050A3 Power amplifier system having frequency and amplifier failure compensation
11/27/2003US20030220085 Method for maintaining automatic gain control settings for a multi-frequency communication device
11/27/2003US20030219085 Self-initializing decision feedback equalizer with automatic gain control
11/27/2003US20030218507 Amplification device
11/27/2003US20030218506 Bias control circuit for power amplifier
11/27/2003US20030218505 Low noise gain-controlled amplifier
11/27/2003US20030218504 Collective automatic gain control
11/27/2003US20030218501 Gain-control method and device for cascaded amplifiers
11/27/2003US20030218500 Power amplifier capable of switching gain while suppressing noise power in reception band
11/26/2003EP1365506A1 Up-converter for radio systems
11/26/2003EP1365505A1 Low noise RF receiver with high channel separation
11/26/2003EP1365504A2 Low noise gain-controlled amplifier
11/26/2003EP1365503A2 Power amplifier capable of adjusting operating point
11/26/2003EP1364464A2 Adjustment of bias current in a first integrated circuit based on a signal gain of a second integrated circuit
11/26/2003EP1364458A2 Protection circuit for extending headroom with off-chip inductors
11/26/2003EP1364456A2 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control
11/26/2003EP1275205B1 Dual-mode communications transmitter
11/26/2003CN1459149A 传输功率控制电路 Transmission power control circuit
11/26/2003CN1129284C Signal multiplexer
11/25/2003US6654594 Digitized automatic gain control system and methods for a controlled gain receiver
11/25/2003US6654593 Combined discrete automatic gain control (AGC) and DC estimation
11/25/2003US6654427 Signal notching system for limiting signal peaks
11/25/2003US6653898 High efficiency stage-switching CDMA power amplifier
11/25/2003US6653892 Squelch circuit to create a squelch waveform for USB 2.0
11/25/2003US6651501 Adaptive equalizer for variable length sound tubes utilizing an electrical impedance measurement
11/20/2003WO2003096557A1 Radio transmission device and radio transmission method
11/20/2003WO2003096530A1 Agc circuit
11/20/2003WO2003096528A2 Wide-dynamic-range, variable-gain, low-noise amplifier circuit
11/20/2003WO2002084897A3 High-quality power ramping in a communications transmitter
11/20/2003US20030216908 Automatic gain control
11/20/2003US20030215034 Wireless terminal device
11/20/2003US20030215033 Digitally programmable gain control circuit
11/20/2003US20030215032 Two-stage non-linear filter for analog signal gain control in an OFDM receiver
11/20/2003US20030214356 Amplifier and radio frequency tuner
11/20/2003US20030214352 Power amplifier capable of adjusting operating point
11/19/2003EP1362429A1 Cartesian loop systems with digital processing
11/19/2003EP1362418A2 Power controller for a mobile terminal
11/19/2003EP0935847B1 Method and apparatus for controlling signal amplitude level
11/19/2003CN1457204A Method and device for controlling power of emission unit
11/19/2003CN1128505C Method and apparatus for linear transmitter
11/18/2003US6650878 Automatic gain control circuit and receiver having the same
11/13/2003WO2003094345A2 Digital automatic gain control for transceiver devices
11/13/2003WO2003094344A1 Improved variable gain amplifier
11/13/2003US20030210751 Radio frequency transmitter and methods thereof
11/13/2003US20030210095 Automatic gain control device and automatic gain control method
11/13/2003DE10229459C1 Transponder for contactless data transmission system has regulation circuit for preventing variation in voltage level of input signal fed from antenna to demodulator
11/12/2003EP1361674A1 Method and apparatus for controlling power associated with a transmitting unit
11/12/2003EP1361666A1 Time division multiplexing connection transceiver and its receiving automatic gain control method
11/12/2003EP1361656A1 Method and device to prevent power-on audio output noise in a wireless telephone handset
11/12/2003EP1360766A1 High -speed output driver
11/12/2003EP1360760A2 Amplitude limitation
11/12/2003EP1360759A1 Automatic gain control
11/12/2003EP0681375B1 Communication apparatus
11/12/2003CN1127826C Mobile radio wave receiver with adaptive automatic gain control
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