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Document Title |
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7627477 |
Robust and invariant audio pattern matching
The present invention provides an innovative technique for rapidly and accurately determining whether two audio samples match, as well as being immune to various kinds of transformations, such as...
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7602320 |
Systems and methods for companding ADC-DSP-DAC combinations
Systems and methods for resizing a signal for use with a fixed-point DSP are provided. More specifically, a process called companding is used in conjunction with fixed-point devices to resize a...
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7579969 |
Systems and methods for creating and using a conditioning signal
Systems and methods for creating and using a conditioning signal are provided. In some embodiments, systems for creating a conditioning signal providing information regarding an input signal are...
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7576665 |
System and method for receiving analog and digital input
A system and a method are provided for receiving analog and digital audio input via a single audio input connector. The method includes receiving an input signal from a single audio input...
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7573956 |
Time encoding and decoding of a signal
Analog signals can be fully encoded as an asynchronous time sequence generated by a time encoding machine (TEM). With knowledge of the parameters of the time encoding machine, the asynchronous time...
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7541966 |
Apparatus and method for demodulating a modulated signal
An apparatus for demodulating a modulated signal comprises an analog to digital converter ( 2, 12 ) for converting an analog modulated input signal to a digital signal. The analog to digital...
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7532671 |
Gain control method and apparatus
An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses...
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7528751 |
Systems, methods, and apparatuses for a long delay generation technique for spectrum-sensing of cognitive radios
Embodiments of the invention may provide for a long delay generator for the spectrum sensing of cognitive radio systems. The long delay generator may include an Analog-to-Digital Converter (ADC),...
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7498964 |
Analog interface for digital instrumentation
Nuclear spectroscopy systems have improved over the course of time especially with the advent of digital pulse processing. One disadvantage of digital processing, however, is that it has eliminated...
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7479907 |
Multichannel time encoding and decoding of a signal
Analog signals can be fully encoded as an asynchronous time sequence generated by a time encoding machine. With knowledge of the parameters of the time encoding machine, the asynchronous time...
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7474237 |
Circuits and methods for using error correction in power amplification and signal conversion
Circuits and methods for using error correction in power amplification and signal conversion are disclosed herein. In some embodiments, methods for using error correction in power amplification and...
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7463172 |
Signal processing device and method, signal processing program, and recording medium where the program is recorded
A signal processing device which outputs a discrete signal composed of a string of the sampling values and parameters m signal. The signal processing device includes a sampling circuit which...
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7420488 |
Apparatus and method for setting filter coefficient, and recording medium having a program recorded thereon
Echo preventing circuit includes first and second FIR filters. The outputs of the first and second FIR filters are converted into first and second analog signals. An input/output terminal outputs...
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7405684 |
Signal selecting circuit and recording medium having program recorded thereon
A signal selecting circuit is disclosed which outputs a first and a second digital signals by converting a first and a second analog signals into digital signals, the first and the second analog...
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7400278 |
Echo prevention circuit, filter coefficient setting method, and recording medium with program recorded
An echo prevention circuit includes a filter that receives a first digital signal and outputs second and third digital signals; first and second DA converter that convert the second and third...
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7391842 |
Direct synthesis clock generation circuits and methods
Clock signal generation circuitry includes input circuitry for receiving a frequency control input signal and a clock signal and generating a memory address therefrom, a memory for storing digital...
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7391347 |
Radio receiver, system on a chip integrated circuit and methods for use therewith
A system on a chip integrated circuit includes a first digital module a second digital module such that the first digital module and the second digital module are operably coupled to generate an...
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7382303 |
Non-perturbing power supply margin controller
A power supply margin controller may alter the voltage of a control signal used to control the output voltage of a power supply. The controller may include a digital-to-analog converter having an...
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7372382 |
Voltage regulation using digital voltage control
For one disclosed embodiment, error is sensed in a voltage at an output node. One or more analog signals are generated based on the sensed error. One or more generated analog signals are converted...
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7369071 |
Analog and digital signal mixer
A mixer receiving a first analog signal and a first digital signal, corresponding to a succession, at a first frequency, of first messages each comprising a first number of bits, and providing a...
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7358875 |
Echo preventing circuit and digital signal processing circuit
An echo preventing circuit comprises a filter that is inputted with a first digital signal and outputs a second and a third digital signals; a first DA converter that converts the second digital...
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7348914 |
Method and systems to align outputs signals of an analog-to-digital converter
Systems and methods are disclosed herein to provide improved alignment of output signals of an analog-to-digital converter (ADC). For example, in accordance with an embodiment of the present...
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7348905 |
Device for treating audio signals, especially for treating audiophonatory disorders
A device for digital treatment of audio signals, especially for treating patients with audiophonatory disorders. The device includes an analog audiofrequency signal input, an analog-digital...
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7342522 |
Digital audio player and playing method thereof
The present invention is directed to an apparatus and method for digital-mixing two sound sources, and performing both audio-outputting and encoding-storing of the digital-mixed sound sources. The...
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7324036 |
Adaptive, intelligent transform-based analog to information converter method and system
The present invention provides an adaptive, intelligent transform based Analog to Information Converter (AIC) for wideband signals by directly converting an analog signal to information (e.g.,...
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7321627 |
Method and system for providing zero detect and auto-mute
Provided is a system and method for muting zero level pulse code modulated (PCM) samples. PCM samples are received as inputs to a digital to analog converter (DAC) including a PCM input module and...
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7319418 |
Sensor with multiplex data output
A method of transmitting data from a sensor ( 1 ) to a receiver ( 4 ) in which each original data word is split in positional fashion into at least two separate short data words (MSN, LSN). The...
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7315267 |
Mixed-mode semiconductor memory
A mixed-mode semiconductor memory includes a memory bank array, an analog/digital converter, a digital/analog converter, a plurality of digital buses and a control unit. The memory bank array...
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7312735 |
Parallel-to-serial converter
Method and system on an aircraft for converting plural data inputs and plural data outputs from a parallel format to a serial format is provided. The system includes an integrated software module...
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7304594 |
Transmitting and receiving device and transmitting device and receiving device
According to one aspect of this invention, there is provided a transmitting and receiving device including a transmitting device having a pulse width modulation encoder which generates a pulse...
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7280058 |
Mixed-signal system-on-a-chip analog signal direct interconnection through programmable logic control
A programmable analog circuit includes a plurality of analog inputs, a differential analog buffer, a digital-to-analog converter, an analog-to-digital converter, and an operational amplifier having...
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7233624 |
Method and system for all digital gain control
An analog/digital gain control device avoid some of the requirements associated with the nature of a closed-loop AGC circuits and which meets the remaining requirements without much difficulty uses...
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7202804 |
Digital signal processing amplifier
A digital signal processing amplifier produces substantially no digital clipping. The amplifier includes an A/D converter provided with an overflow detecting function and a controller for...
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7190292 |
Input level adjust system and method
A method of matching input amplitudes in a system wherein one or more of a plurality of inputs may be selected, with each input capable of having different characteristics, involving selecting an...
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7188196 |
Method and apparatus for playing analog audio to multiple codec outputs
Method and apparatus for playing analog audio in an electronic audio system having multiple audio codecs, only one of which has a direct hardware connection to the analog audio source. First analog...
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7173557 |
Analog/digital converter
An A/D converter for converting an analog input into a binary-encoded word includes a bit-weight memory storing bit weights that include maximum, mimimum, and medium weights. During a conversion...
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7167116 |
Memory devices having single bit bus structure with current mode signaling and methods of operating same
A memory device for storage of digitally formatted data can include a Digital to Analog Converter (DAC) circuit that is configured to convert digitally formatted data received from outside the...
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7161510 |
Switching amplifier comprising a delta-sigma modulation circuit
A switching amplifier is provided with a delta-sigma modulation circuit that performs delta-sigma modulation of an input signal that is either an analog signal or a multi-bit signal and outputs a...
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7151970 |
Multiple audio DACs with PC compatibility
Multiple audio digital to analog converters (DACs) are provided to convert multiple digital audio streams to analog audio signals concurrently in a personal computer. Different digital audio...
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7145488 |
Method and system for converting digital samples to an analog signal
Provided is a system and method for converting digital data audio data audio data that has a predetermined input sample rate, into an analog data signal. A system includes a digital to analog...
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7145492 |
Data management method
A data management method that by encrypting and distributing digital content prevents copyright infringement, and that prevents authorization information for decrypting the encrypted digital...
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7142139 |
Powering down of DAC and ADC for receive/transmit modes of operation in a wireless device
A digital-to-analog converter (DAC) disposed in a data transmission path to convert data from a digital format to an analog format to be transmitted is powered down during a receive mode of...
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7138932 |
Signal converting apparatus for integrating analog-to-digital converter and digital-to-analog converter and integration unit
A signal converting apparatus for integrating an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) and an integration unit thereof are provided. The present invention...
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7079058 |
Powering down of DAC and ADC for receive/transmit modes of operation in a wireless device
A digital-to-analog converter (DAC) disposed in a data transmission path to convert data from a digital format to an analog format to be transmitted is powered down during a receive mode of...
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7068068 |
Re-configurable mixed-mode integrated circuit architecture
An analog portion of a mixed-mode integrated circuit system includes a plurality of analog input cells, a plurality of analog output cells, and an interconnect array. The input cells are configured...
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7061420 |
Gain control for analog-digital converter
A first amplifier circuit samples and amplifies an input analog signal by a gain of 0.8 and outputs the amplified signal to a first subtracter circuit. A first analog-digital converter circuit...
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7031401 |
Digital to analog converter with time dithering to remove audio tones
A Digital-to-Analog-Converter (DAC) includes an interpolation filter, a modulator, and a time dither clock reduction circuit. The interpolation filter receives the digital data and interpolates and...
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7020213 |
Method and apparatus for selectively providing different electric signal paths between circuits
A digital signal path selector is disclosed in its simplest form for selectively connecting two input terminals to two output terminals. Both input terminals and output terminals are laid out on a...
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7009534 |
Isolator for controlled power supply
An isolation circuit for adjustable power system in which the user analog inputs and optional user analog outputs are isolated from the load common potential by discrete value isolators instead of...
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7006025 |
Method for generating a reference current for sense amplifiers and corresponding generator
A method is described for generating a reference current for sense amplifiers connected to cells of a memory matrix comprising the steps of generating a first reference current analog signal...
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