子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Electronic sampling circuit | EP98202715.3 | 1998-08-13 | EP0898375A2 | 1999-02-24 | Fuggle, Graham Anthony; Law, Derek; Edwards, Stephen John |
An electronic sampling circuit for determining redox potentials, and consequently specie concentration, in a photographic solution, applies a linear ramp of a square wave voltage to a first electrode (6) immersed in the solution. The current drawn by an adjacent electrode (12) is converted to a voltage for sampling. A pair of sample-and-hold circuits (40,42) store signals sampled at the peak and adjacent trough respectively of a square wave pulse, and a subsequent analogue difference circuit (44) subtracts the two signals. The resulting signal is converted to a digital code by a low cost, low bit count analogue-to-digital converter (46), which is stored on a microprocessor (48). The sampling process is repeated for successive square waves along the ramp. This circuit configuration enables the difference between analogue signals to be measured where the signals differ in amplitude by small amounts but have a wide dynamic range, without the need for an expensive, high bit count analogue-to-digital converter. |
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| 102 | DIFFERENTIAL CODING AND DECODING METHOD AND RELATED CIRCUITS | EP94915143.5 | 1994-04-29 | EP0696404B1 | 1997-11-19 | CUCCHI, Silvio; LAZZER, Maurizio |
| A method for the differential coding and decoding and related circuits are disclosed here. The differential coding is a special type of coding which, instead of coding directly an input signal, carries out the difference between this signal and a predicted signal of it. This allows the reduction of the information to be transmitted. The invented method is capable of further reducing the signal redundancy and therefore the information to be transmitted. | ||||||
| 103 | Dispositif de faible coût et intégrable pour l'acquisition de signaux électriques selon la norme ARINC 429 | EP96400563.1 | 1996-03-18 | EP0735694A1 | 1996-10-02 | Pitot, Christian; Vriz, Louis |
Dans le but de convertir un signal analogique de transmission de données numériques en un signal numérique, le dispositif selon l'invention comprend un circuit analogique passif (CA) comportant un condensateur (C) chargé par le signal analogique au travers d'une première résistance (R1), la tension aux bornes du condensateur (C) étant appliquée au travers d'une seconde résistance (R2), à l'entrée (B) d'un circuit numérique comprenant un comparateur (11) à seuil appliquant à une bascule (13) un signal logique fonction du résultat de la comparaison à un seuil de la tension en entrée (B), des moyens (12,14) pour appliquer périodiquement en entrée (B), une impulsion de charge ou de décharge de manière à ramener la tension en entrée (B) vers la tension de seuil, un circuit de comptage pour déterminer périodiquement un nombre représentatif du signal analogique, obtenu en retranchant le nombre de décharges au nombre de charges. |
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| 104 | DIFFERENTIAL CODING AND DECODING METHOD AND RELATED CIRCUITS | EP94915143.0 | 1994-04-29 | EP0696404A1 | 1996-02-14 | CUCCHI, Silvio; LAZZER, Maurizio |
| A method for the differential coding and decoding and related circuits are disclosed here. The differential coding is a special type of coding which, instead of coding directly an input signal, carries out the difference between this signal and a predicted signal of it. This allows the reduction of the information to be transmitted. The invented method is capable of further reducing the signal redundancy and therefore the information to be transmitted. | ||||||
| 105 | WAVEFORM A/D CONVERTER AND D/A CONVERTER | EP93913522.4 | 1993-06-15 | EP0601201A1 | 1994-06-15 | KAWABATA, Masayuki Emu Wai Hausu 202 gou |
In order to implement high resolution A/D (or D/A) conversion, the differentiated waveform of an analogue (or digital) waveform signal is generated by a differentiated waveform generating unit (10). The differentiated waveform is cyclically distributed at the timings of clock signals (CK0) to integrators (14₁ to 14N) (N is an integer of 2 or more). These integrated outputs are converted into digital (or analogue) signals by converters (15₁ to 15N). These converted outputs are added by an adder (16). The added result is output as a digital (or analogue) waveform signal. |
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| 106 | 모뎀 칩, 이를 포함하는 어플리케이션 프로세서 및 모뎀 칩의 동작방법 | KR20160109551 | 2016-08-26 | KR20180023741A | 2018-03-07 | |
| 모뎀칩, 이를포함하는어플리케이션프로세서및 모뎀칩의동작방법이개시된다. 본개시의기술적사상의일측면에따른모뎀칩은알 에프(RF) 칩과통신하고, 디지털통신에기반하여상기알 에프칩으로부터다수의샘플들을포함하는데이터를수신하는디지털인터페이스및 상기모뎀칩 내부의클록신호에기반하여프레임동기신호를생성하고, 상기생성된프레임동기신호를상기디지털인터페이스로제공하며, 상기샘플들을상기프레임동기신호에동기하여수신하는로직블록을구비하는것을특징으로한다. | ||||||
| 107 | 임계-기반 신호 코딩을 위한 비동기식 펄스 변조 | KR1020167036046 | 2015-05-19 | KR1020170021258A | 2017-02-27 | 윤영철 |
| 신호처리방법은, 입력신호를하나이상의포지티브임계값들및 하나이상의네거티브임계값들과비교하는것을포함한다. 이방법은또한, 입력신호의포지티브임계치(들) 및네거티브임계치(들)와의비교에기초하여출력신호를생성하는것을포함한다. 이방법은, 출력신호를감쇠재구성필터내로피드백하여재구성된신호를형성하는것 및그 재구성된신호를입력신호와결합하는것을더 포함한다. | ||||||
| 108 | 가변 양자화기를 구비한 변조기 | KR1020130094594 | 2013-08-09 | KR101649989B1 | 2016-08-23 | 토마소빅스,아틸라; 라벤스테인,아르노 |
| 장치들과기술들의대표적인구현예들은변조기용가변양자화기를제공한다. 양자화기의비교값은변조기의각 클록주기와함께변화한다. 가변비교값은결과적으로변조기의확산스펙트럼출력이된다. | ||||||
| 109 | 가변 양자화기를 구비한 변조기 | KR1020130094594 | 2013-08-09 | KR1020140020799A | 2014-02-19 | 토마소빅스,아틸라; 라벤스테인,아르노 |
| The present invention relates to a modulator with variable quantizer. According to one embodiment of the present invention, the modulator with variable quantizer a state device arranged to output a comparison value during a clock period and a comparator arranged to output a non-periodic bit steam. [Reference numerals] (304) State device; (306) Multiplexer; (AA,CC) Integrated value; (BB,EE) Bit stream; (DD) Variable comparison value | ||||||
| 110 | 주파수 특성을 보정하는 아날로그 디지털 변환기 및 이를 포함하는 반도체 장치 | KR1020170026903 | 2017-03-02 | KR1020180100746A | 2018-09-12 | |
| 본기술에의한아날로그디지털변환기는입력신호를오버샘플링하여출력하는변조기; 및변조기의출력에대해서데시메이션동작과주파수특성보정동작을함께수행하는필터를포함한다. | ||||||
| 111 | 전류 버퍼의 출력 전류를 디지털 코드로 변환하는 장치 및 방법 | KR1020170010984 | 2017-01-24 | KR1020180086922A | 2018-08-01 | 채영철; 황현석 |
| 본발명은전류버퍼의출력전류를디지털코드로변환하는장치및 방법을개시한다. 본발명의일실시예에따르면전류버퍼의출력전류를디지털코드로변환하는장치는입력신호를전류신호로변환하고, 상기변환된전류신호를출력하는전류버퍼부, 및상기출력된전류신호를디지털전류신호로변환하여상기변환된디지털전류신호를피드백하고, 상기출력된전류신호및 상기피드백된디지털전류신호의비율에기초하여상기출력된전류신호를디지털코드로변환하는신호변환부를포함할수 있다. | ||||||
| 112 | 폴딩－인터폴레이팅 아날로그-디지털 변환기 | KR1020020058541 | 2002-09-26 | KR1020040026907A | 2004-04-01 | 박홍준; 허승찬 |
| PURPOSE: A folding-interpolating analog-digital converter is provided to reduce the area and power required for the preamplifier by using an averaging method and reducing the number of preamplifier to a half in comparison with that of a conventional converter. CONSTITUTION: A folding-interpolating analog-digital converter includes a preamplifier stage(20'), a first folding circuit(30), a second folding circuit(50) and a comparator/digital circuit block(70'). The preamplifier stage(20') is composed of a plurality of amplifiers. The first folding circuit(30) which is composed of a plurality of folders folds the signals outputted from the preamplifier stage(20'). The second folding circuit(50) which is composed of a plurality of folders folds the signal outputted from the first folding circuit(30) again. And, the output of the adjacent preamplifiers(1-18) are serially connected to two resistors(21) having same resistance and it outputs average value. | ||||||
| 113 | 입력방식 절환을 이용한 다채널 아날로그 입력 변환회로 | KR1020000011759 | 2000-03-09 | KR1020010087902A | 2001-09-26 | 오연식 |
| PURPOSE: A multichannel analog input converting circuit using input mode switching is provided, which easily copes with the output mode of an external analog signal converter and varies the number of analog input channels at the request of a user. CONSTITUTION: A multichannel analog input converting circuit using input mode switching includes an input connection part(101) for connecting external analog input signals of channels to an input converting circuit, a differential input signal selector(102) for selecting a differential input signal according to a differential select signal among the external analog input signals, and a single-ended input signal selector(106) for selecting a single-ended input signal according to a single-ended select signal among the external analog input signals. The circuit further has an input switch(107) for switching the output of the differential and single-ended input signal selectors based on an input processing mode, an input amplifier(103) for amplifying a switched analog input signal, and an A/D converter(104) for converting the amplified analog signal into a digital data value. The circuit also has an input mode setting part(109) for selecting the input processing mode of the external analog input signals, a microprocessor(105) for outputting an input selection control signal for handling the selected input processing mode and processing the digital value provided by the converter, and a control signal generator(108) for generating the differential input select signal, single-ended input select signal and input switching control signal. | ||||||
| 114 | MEDICAL DEVICE IDENTIFIER | PCT/US2013050604 | 2013-07-16 | WO2014014864A3 | 2014-04-17 | HORTON RODNEY P; PEARCE JOHN ANTHONY; VALVANO JONATHAN WALKER |
| A medical device identifier can identify an implanted medical device. In one example arrangement, the medical device identifier sends electromagnetic signals to the implanted device according to one or more stored digitized waveforms. The device then senses any returned electromagnetic signals, and identifies the implanted device based on the returned electromagnetic signals. The medical device identifier may generate the electromagnetic signals from the stored digitized waveforms using an analog-to-digital converter, and may compare the returned electromagnetic signals with one or more stored digital templates corresponding to different device manufacturers. The comparison may be performed using cross correlation. In another aspect, a portal device includes an identification subsystem for identifying the provider of a medical device, and a communication subsystem for establishing two-way communication a call center servicing medical devices from an identified provider. The portal device may relay information between the medical device and the identified provider. | ||||||
| 115 | GLOBAL LOOP INTEGRATING MODULATOR | PCT/DK2004000317 | 2004-05-06 | WO2004100356A3 | 2005-03-31 | POULSEN SOEREN |
| A switch-mode modulator operating at a two-level voltage and including an alternating output stage (3), an optional output filter (5) and a feedback including a function block (14) with a transfer function (MFB). The modulator furthermore includes a forward block (12) provided with means for calculating the difference between the signal (14a) originating from the function block (14) and a reference signal (REF) as well as with a transfer function (MFW). The output (13) of the forward block (12) is the input of a Schmitt-trigger (9), which generates switch on signals (2) for changing the output stage. The output voltage (VOUT) of the modulator applying either after the optional output filter (5) or the output stage (3) is fed back through the function block (14) so as to generate the signal (14a) fed back. The transfer function of the function block (14) and of the forward block (12) is chosen both in response to the transfer function of the output filter (5) and in response to the desired total open-loop-transfer function of the modulator. | ||||||
| 116 | SYSTEMS AND METHODS FOR GENERATING A DIGITAL OUTPUT SIGNAL IN A DIGITAL MICROPHONE SYSTEM | PCT/US2014033302 | 2014-04-08 | WO2014168934A4 | 2015-03-12 | MELANSON JOHN L; TUCKER JOHN C |
| In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having three or more quantization levels, and in the digital domain, process the first digital signal to convert the first digital signal into a second digital signal having two quantization levels. | ||||||
| 117 | SYSTEMS AND METHODS FOR COMPRESSING A DIGITAL SIGNAL IN A DIGITAL MICROPHONE SYSTEM | PCT/US2014033314 | 2014-04-08 | WO2014168939A3 | 2015-01-29 | MELANSON JOHN L; TUCKER JOHN C |
| In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having a plurality (e.g., more than 3) of quantization levels, and in the digital domain, process the first digital signal to compress the first digital signal into a second digital signal having fewer quantization levels (e.g., +1, 0, -1) than that of the first digital signal. | ||||||
| 118 | A METHOD AND SYSTEM FOR ANALOG TO DIGITAL CONVERSION USING DIGITAL PULSE WIDTH MODULATION (PWM) | PCT/US2005007848 | 2005-03-10 | WO2005104377A3 | 2006-05-18 | MIDYA PALLAB; MILLER MATTHEW R; RAKERS PATRICK L |
| A system and method for analog-to-digital conversion (118) using digital pulse width modulation (PWM) is disclosed. The method and system according to the disclosed invention converts an analog input signal (104) to a digital signal in pulse code modulated (PCM) form (106). The disclosed invention uses a feedback circuit (114) to perform PWM of the analog input signal. The PWM signal is then decimated to obtain the digital signal in PCM form. The system according to the disclosed invention requires lower operating frequency and dissipates lesser power than prior art systems providing the same sampling frequency and resolution. The operation at a lower frequency is achieved by obtaining two samples from every pulse of the PWM signal; the first sample being obtained from the right duty ratio. Further the disclosed invention has lesser implementation complexity and higher signal-to-noise ratio than prior art. | ||||||
| 119 | SYSTEMS AND METHODS FOR GENERATING A DIGITAL OUTPUT SIGNAL IN A DIGITAL MICROPHONE SYSTEM | PCT/US2014033302 | 2014-04-08 | WO2014168934A3 | 2014-12-31 | MELANSON JOHN L; TUCKER JOHN C |
| In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having three or more quantization levels, and in the digital domain, process the first digital signal to convert the first digital signal into a second digital signal having two quantization levels. | ||||||
| 120 | SYSTEMS AND METHODS FOR COMPRESSING A DIGITAL SIGNAL IN A DIGITAL MICROPHONE SYSTEM | PCT/US2014033314 | 2014-04-08 | WO2014168939A2 | 2014-10-16 | MELANSON JOHN L; TUCKER JOHN C |
| In accordance with embodiments of the present disclosure, a digital microphone system may include a microphone transducer and a digital processing system. The microphone transducer may be configured to generate an analog input signal indicative of audio sounds incident upon the microphone transducer. The digital processing system may be configured to convert the analog input signal into a first digital signal having a plurality (e.g., more than 3) of quantization levels, and in the digital domain, process the first digital signal to compress the first digital signal into a second digital signal having fewer quantization levels (e.g., +1, 0, -1) than that of the first digital signal. | ||||||
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