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| Number | Title | Issue Date |
| 7973599 | Amplification control device, test signal generation module, test device, amplification control method, program, and recording medium An amplification control device for controlling a variable-gain amplifier the amplification factor of which is controlled based on an analog control signal, and which amplifies an analog input signal and outputs an analog output signal, includes component acquisitio... | 07/05/2011 |
| 7342445 | Radio frequency power amplifier circuit and method A method (200) and radio frequency amplifier circuit (100) for adjusting a gain setting of a power amplifier (102) and a gain setting of a power amplifier driver (106) that form part of the radio frequency amplifier circuit (100). ... | 03/11/2008 |
| 7245890 | High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device A high frequency variable gain amplification device 100 includes: a feedback circuit 103 capable of changing a feedback impedance to adjust the gain of an amplifier 101 in accordance with a control signal from a control device 200; and a ... | 07/17/2007 |
| 7079818 | Programmable mutlistage amplifier and radio applications thereof A programmable multi-stage amplifier includes a 1st programmable amplifier, a 2nd programmable amplifier, and a control module. The 1st and 2nd programmable amplifiers are coupled in series to amplify an input signal. Each... | 07/18/2006 |
| 6970152 | Stacked amplifier arrangement for graphics displays A column driver for a graphics display has reduced power consumption by sharing power between upper and lower column amplifiers. The upper column amplifier operates over an upper supply range, while the lower column amplifier operates over a lower supply range. The ... | 11/29/2005 |
| 6968163 | Method and transmission circuit for generating a transmission signal A method and transmission circuit are provided for generating a transmission signal, wherein the feedback component of the transmission signal is attenuated in accordance with the required mean transmission power and used for regulation, i.e., the mean transmission ... | 11/22/2005 |
| 6917245 | Absolute power detector A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a ... | 07/12/2005 |
| 6756849 | Absolute power detector A method and apparatus is provided for detecting the output power of a power amplifier. The output power is detected by detecting the absolute values of the voltage and current at the output of the amplifier and mixing the detected voltage and current to generate a ... | 06/29/2004 |
| 6130582 | Amplifier circuit including compensation circuitry for canceling variations in an amplifier feedback signal An amplifier circuit (14') for canceling variations in an amplifier feedback signal includes compensation circuitry (50) defining a replica of the feedback current therethrough. The replicated feedback current is drawn from a circuit node (N1) which direc... | 10/10/2000 |
| 6121823 | Electrical circuit for sensors requiring a variety of bias voltages An electrical circuit provides a variety of stable and reliable bias voltages to accommodate the bias requirements of various sensor types. The electrical circuit comprises a programmable analog circuit capable of maintaining a plurality of programmable t... | 09/19/2000 |
| 4588959 | Hum neutralization circuit A method and hum neutralization circuit for a grounded grid triode radio frequency amplifier in which the hum signal is detected and a portion thereof related to the amplification of the amplifier applied to the cathode to oppose, when amplified, in ampli... | 05/13/1986 |
| 4399460 | Video signal peaking control system with provision for automatic and manual control A DC coupled system for automatically controlling the high frequency peaking content of a video signal is disclosed. The system includes a DC coupled control path comprising a peak detector for developing a control voltage representative of the high frequ... | 08/16/1983 |
