| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 341155000 |
Analog to digital conversion
| 783 |
| 341144000 |
Digital to analog conversion
| 410 |
| 341143000 |
Differential encoder and/or decoder (e.g., delta modulation, differential pulse code modulation)
| 389 |
| 341141000 |
Multiplex
| 52 |
| 341133000 |
With particular solid state devices (e.g., Gunn effect device, Josephson device, drift transistor, using solid state active devices as impedances) with other at longer intervals)
| 47 |
| 341131000 |
Increasing converter resolution (e.g., dithering)
| 46 |
| 341137000 |
Using optical device, (e.g., fiber optics, cathode ray tubes)
| 27 |
| 341138000 |
Nonlinear
| 14 |
| 341142000 |
Converter is part of control loop
| 10 |
| 341132000 |
Detecting analog signal peak | 5 |
| 20100079321 | Analogue-To-Digital Converter (ADC) Dynamic Range And Gain Control - The present invention relates to a method for using the peak-to-average power ratio (PAR) of signals received by a receiver to control the gain of the receiver for an analogue-to-digital converter (ADC) and/or to control the dynamic range of the ADC. | 04-01-2010 |
| 20100164768 | PROVIDING DIGITAL CODES REPRESENTING ANALOG SAMPLES WITH ENHANCED ACCURACY WHILE USING AN ADC OF LOWER RESOLUTION - An aspect of the present invention improves accuracy of output codes generated by a lower resolution ADC. In an embodiment, a gain factor is determined by examining a strength of an input signal in analog form. The gain factor equals one if the strength is more than half of the maximum voltage resolvable by the ADC and is more than one otherwise. An analog sample obtained from the input signal is converted to a digital code using the ADC, with the digital code being scaled up by the gain factor compared to an output code representing the strength of the analog sample in relation to the maximum voltage. The digital code is divided by the gain factor to generate the output code representing the strength of the analog sample in relation to the maximum voltage. The accuracy of the output code is greater for smaller amplitudes of the analog samples. | 07-01-2010 |
| 20100164769 | SIGMA-DELTA MODULATOR ARCHITECTURE CAPABLE OF AUTOMATICALLY IMPROVING DYNAMIC RANGE METHOD FOR THE SAME - The present invention discloses a sigma-delta modulator architecture capable of automatically improving dynamic range and a method for the same. Based on the concept that different dynamic ranges of a sigma-delta modulator can be obtained via adjusting the signal power gain thereof, the present invention provides a novel algorithm to implement an automation program. The present invention finds out several sets of dynamic-range curves to improve the overall dynamic range. Via a high-level sigma-delta modulator architecture, the present invention can calculate the required feedforward coefficients. Further, the present invention install in the sigma-delta modulator architecture with four additional components, including a peak detection unit, a comparator unit, a digital coefficient control unit and a switch unit, to dynamically detect the output of the sigma-delta modulator and dynamically modify the feedforward coefficient of the sigma-delta modulator. Thus is extended the dynamic range of the sigma-delta modulator. | 07-01-2010 |
| 20100188275 | SIGNAL PROCESSING DEVICE - It is an object of the present invention to provide a signal processing device which, even when a steep difference in DC level is included in a signal read from a disc such as a DVD-RAM format, cuts off the DC level and pulls the read signal into an appropriate A/D input level with an attempt to cost reduction. A steep difference in DC level between a data section and a CAPA section is absorbed by a first offset unit | 07-29-2010 |
| 20110291869 | DETECTING DEVICE - A detecting device has: a detecting element to which a first constant voltage is applied; a resistance element connected to the detecting element; a switching element having a first terminal to the resistance element, a second terminal controlled to a second constant voltage lower than the first constant voltage, and a control terminal sets the first terminal and the second terminal in a conducting state; a control unit, according to a conducting/non-conducting state, controls voltage to the control terminal to maintain a potential difference between the detecting element and the resistance element; and an AD converter converting, into a digital value, a potential of a potential difference between the first constant voltage and the first terminal being voltage-divided at the detecting element and the resistance element to the detecting element, a first reference potential is the first constant voltage, and a second reference potential is voltage to the first terminal. | 12-01-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20080238742 | REMOVING MALICIOUS CODE IN MEDIA - A method may include receiving untrusted digital media; converting the untrusted digital media into an analog signal; converting the analog signal into trusted digital media; and storing the trusted digital media. | 10-02-2008 |
| 20080258950 | Switching circuitry and switching system - Switching circuitry comprising a bank of actuatable switches connected in parallel between a supply terminal and a decoding terminal, each switch being connected in series with a component which, when the switch is actuated, applies to the second terminal an analog signal having a value unique to that switch. | 10-23-2008 |
| 20090085783 | Multi-Bit Data Converter Using Data Weight Averaging - A method for converting data includes matching dynamic elements by repeatedly selecting a portion of unit elements among N unit elements according to data and a circulation direction. An existence of a tone generation possibility is determined by comparing a present pointer position with a previous pointer position and by comparing present data with previous data. At least one of the present pointer position and the circulation direction is changed based on the existence of the tone generation possibility. The present pointer position and the present data are stored or the changed pointer position and the present data are stored. Unit elements are sequentially selected by the present data from the stored pointer position in the circulation direction or the changed circulation direction. The present pointer position is moved by the present data in the circulation direction or the changed circulation direction. | 04-02-2009 |
| 20100225516 | Semiconductor device and input selection control method - A semiconductor device includes: input terminals identified by channel numbers and configured to receive analog signals; analog input pads identified by pad numbers and connected with whole or part of the input terminals; a data holding section configured to hold a data of the input terminals; a channel designating section configured to generate a channel designation signal to designate one of the channel numbers; and a channel translating section configured to translate the channel number indicated by the channel designation signal into a specific one of the pad numbers based on the held data. An A/D converting section is configured to convert the analog signal inputted from the analog input pad corresponding to the specific pad number into a digital signal. | 09-09-2010 |
| 20110006935 | CYCLIC ANALOG/DIGITAL CONVERTER - A cyclic A/D converter | 01-13-2011 |
| 20110063152 | COMMUNICATION DEVICE AND NOISE CANCELLATIN METHOD - A communication device and the method thereof are disclosed in embodiments of the present invention. The communication device includes a level determining module, an digital to analog converter and an analog to digital converter. The level determining module determines a plurality of voltage levels and voltage intensity thereof according to an estimating signal to generate a first digital signal. The digital to analog converter converts the first digital signal into a pulse shaped analog signal according to the plurality of voltage levels and voltage intensity thereof. The analog to digital converter converts a first difference signal into a second digital signal wherein the first difference signal equals the result of subtracting the pulse shaped analog signal from a receiving signal. | 03-17-2011 |
| 20120062402 | MULTIPLEXED AMPLIFIER WITH REDUCED GLITCHING - In many applications, which use amplifiers that operate at less than 50% duty cycle, it would be advantageous to reduce the number amplifiers to reduce power consumption. Here, an amplifier is provided which is time multiplexed to accommodate multiple data paths. Additionally, reset circuitry or a reset mechanism is provided at the output terminals of this amplifier to briefly short the output terminals to generally prevent glitching that may result from switching between data paths. | 03-15-2012 |
