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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...
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...
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...
7391814 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...
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...
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...
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...
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...
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...
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...
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...
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...
7336210 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...
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.,...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
7180437 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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
6995701 Multichannel high resolution segmented resistor string digital-to-analog converters  
Multi-channel high resolution segmented resistor string digital-to-analog converters (DACs) suitable for realization in a single integrated circuit. The DACs incorporate a primary resistor string...
6976042 Low cost white noise generator  
A low cost white noise generator. An oscillator provides a signal to an analog-to-digital (AID) converter for digitizing. A bit-order reversal circuit reverses the order of the received bits,...
6954163 Hybrid digital/analog processing circuit  
A circuit comprising a digital processor, analogue processing means, a digital to analogue converter for converting digital values output from the digital processor into analogue values which are...
6940432 Subliminal recording device  
An apparatus for recording and replaying a message comprising a plurality of control buttons for controlling the apparatus; a processor connected to the record control button for communicating...
6922160 Scalable bus system and method for communicating digital data using analog modulation and demodulation  
A method and apparatus for communicating digital data on a bus arrangement is provided. The bus arrangement includes one or more encoding circuits, decoding circuits, and transmission mediums. Each...
6917318 Analog to digital converter that services voice communications  
An Analog-to-Digital-Converter (ADC) converts an analog signal to digital data. The ADC includes a modulator, a decimation filter, and a time dither clock reduction circuit. The modulator receives...
6900752 Stepwise zero-data-detection mute circuit  
A variable resistance device is disclosed, which comprises a first variable resistance circuit and analog switches, a second variable resistance circuit including series-connected first and second...
6879273 Oversampling in analog/digital and digital/analog converters  
The invention creates a method and a device for digitally transmitting analog signals, in which oversampling is performed in analog/digital and digital/analog converters. In this arrangement, a...
6873271 Power supply  
A power supply particularly suitable for high-speed optical data transmission employs readily available components to achieve desired voltage tolerances. More specifically, a voltage signal...
6812874 Method and apparatus for processing analog signal  
An apparatus for processing an analog signal includes a programmable signal converter in which a mapping between input voltages and output voltages is loaded into an input-to-output mapping device,...
Matches 1 - 50 out of 293 1 2 3 4 5 6 >