| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 327350000 | Logarithmic | 6 |
| 20090206907 | Thermaltronic Analog Device - A method is provided for the electronic processing of analog signals in thermaltronic device. The method accepts an analog input signal, e.g., an AC signal, at a thermaltronic device input and generates a thermal electric (TE) temperature having a first transfer function responsive to the input signal. As opposed to having a digital response, the transfer function is either linear or logarithmic. An analog output signal, e.g., an AC signal, is generated having a second transfer function responsive to the TE, which is likewise either linear or logarithmic. | 08-20-2009 |
| 20090322404 | Arrangement, Use of an Arrangement, Reference Voltage Source and Method for Generating a Voltage Value Linearly Proportional to the Temperature - The invention relates to an arrangement comprising a logarithmizing unit and a subtracting unit, wherein the subtracting unit has an output at which a voltage value linearly proportional to the temperature can be tapped off. | 12-31-2009 |
| 20120119813 | DIGITAL FAST DB TO GAIN MULTIPLIER FOR ENVELOPE TRACKING SYSTEMS - A digital log gain to digital linear gain multiplier is disclosed. The digital log gain to digital linear gain multiplier includes a log gain splitter adapted to split a log gain input into an integer log part and a remainder log part. A log scale-to-linear scale converter is adapted to output a linear gain value in response to the integer log part and the remainder log part. A gain multiply circuit is adapted to multiply a digital signal by the linear gain value to output a gain-enhanced digital signal. | 05-17-2012 |
| 20120218021 | Threshold Computation Apparatus and Threshold Computation Program - A threshold computation apparatus obtains estimated interference power for an uplink from a terminal to a base station; a predetermined communication quality value necessary for the uplink; a maximum value of transmission power of the terminal; and transmission power of the base station for a downlink from the base station to the terminal. The apparatus subtracts a logarithmic value of the maximum value of the transmission power of the terminal from a logarithmic value of the transmission power of the base station for the downlink; adds a logarithmic value of the communication quality value and a logarithmic value of the estimated interference power to a result of the subtraction; and determines a result of the addition to be a logarithmic value of received power at the terminal; and computes a threshold based on the logarithmic value of the received power at the terminal and predetermined conditions. | 08-30-2012 |
| 20150137868 | CMOS LOGARITHMIC CURRENT GENERATOR AND METHOD FOR GENERATING A LOGARITHMIC CURRENT - A CMOS logarithmic current generator includes current mode circuitry having a design principle based on a Taylor's series expansion that approximates an exponential function. A MOSFET circuit provides a function generator core cell having a biasing current I | 05-21-2015 |
| 327351000 | With cascade network | 1 |
| 20080297225 | LOGARITHMIC AMPLIFIER - A logarithmic amplifier is configured to produce a logarithmic output signal that is an logarithmic function of an input signal. The amplifier comprises a reference signal, first and second function generators, and a low-pass filter. The first function generator is configured to produce a periodic exponential waveform from the reference signal based upon a resistor-capacitor time constant, wherein the exponential waveform exponentially increases from a minimum value to a maximum value in each period. The second function generator is configured to produce a pulsed waveform from the exponential waveform, wherein the pulsed waveform has a signal period, and wherein the pulsed waveform comprises a first portion having a first amplitude for a first time period and a second portion having a different amplitude for the remainder of the signal period, and wherein the duration of the first time period is determined in response to the exponential waveform. The low pass filter is configured to produce the logarithmic output signal as a function of the pulsed waveform. | 12-04-2008 |
