公开(公告)号：US5703528A

公开(公告)日：1997-12-30

申请号：US337108

申请日：1994-11-10

Applicant: Daniela Nebuloni ,  Andrea Fassina

Inventor： Daniela Nebuloni ,  Andrea Fassina

IPC: H03F1/00 ,  H03F1/30 ,  H03G3/34 ,  H03F1/14 ,  H03B21/00 ,  H04B15/00

CPC classification number: H03F1/305 ,  H03G3/348

Abstract: A circuit comprising a transistor which, when supply is turned off, locks the output of the audio amplifier to the supply line, the potential of which is reduced gradually by a filter capacitor, so that the output voltage follows the supply voltage with the same slope, and is so controlled by the filter capacitor, thus eliminating undesired noise ("popping") at the output caused by electric transients in the audio amplifier.

Abstract translation: 一种电路，包括晶体管，当电源关闭时，将音频放大器的输出锁定到电源线，其电位由滤波电容逐渐减小，使得输出电压以相同的斜率跟随电源电压 ，并被滤波电容器控制，从而消除由音频放大器中的电瞬变引起的输出处的不期望的噪声（“弹出”）。

公开(公告)号：US5703476A

公开(公告)日：1997-12-30

申请号：US674321

申请日：1996-07-01

Applicant: Mauro Merlo ,  Franco Cocetta ,  Fabio Marchio ,  Massimo Grasso ,  Bruno Murari

Inventor： Mauro Merlo ,  Franco Cocetta ,  Fabio Marchio ,  Massimo Grasso ,  Bruno Murari

IPC: G05F1/46 ,  G05F3/22 ,  H02J7/14 ,  G05F3/16

CPC classification number: G05F1/463 ,  G05F3/225 ,  H02J7/1453 ,  Y10S323/907

Abstract: A reference voltage generator having a dual slope temperature characteristic, for use in an automotive alternator voltage regulator, comprises a bandgap circuit (R1,R2,R3,R4) which generates a voltage (A) having a thermal drift coefficient of zero and a voltage (B) having a non-zero thermal drift coefficient. These voltages are applied to a voltage divider (R5,R6) and a voltage-follower type of circuit (OPA1). A unidirectional conduction amplifier circuit (OPA2) has an input terminal connected to an intermediate point (C) on the voltage divider. A second voltage divider (R7,R8) is connected between the output terminals of the voltage-follower circuit (D) and the amplifier circuit (E) . An intermediate node (F) of the second voltage divider is coupled to an output terminal (VREF) of the generator.

Abstract translation: 具有用于汽车交流发电机电压调节器的双斜率温度特性的参考电压发生器包括产生具有热漂移系数为零的电压（A）的带隙电路（R1，R2，R3，R4）和电压 （B）具有非零热漂移系数。 这些电压被施加到分压器（R5，R6）和电压跟随器类型的电路（OPA1）。 单向导通放大器电路（OPA2）具有连接到分压器上的中间点（C）的输入端子。 第二分压器（R7，R8）连接在电压跟随器电路（D）的输出端子和放大器电路（E）之间。 第二分压器的中间节点（F）耦合到发生器的输出端子（VREF）。

公开(公告)号：US5701265A

公开(公告)日：1997-12-23

申请号：US593650

申请日：1996-01-29

Applicant: Cristiano Calligaro ,  Vincenzo Daniele ,  Roberto Gastaldi ,  Alessandro Manstretta ,  Guido Torelli

Inventor： Cristiano Calligaro ,  Vincenzo Daniele ,  Roberto Gastaldi ,  Alessandro Manstretta ,  Guido Torelli

IPC: G11C17/00 ,  G11C11/56 ,  G11C16/02 ,  G11C11/34

CPC classification number: G11C11/5642 ,  G11C11/5621 ,  G11C2211/5632

Abstract: A serial dichotomic method for sensing multiple-level non-volatile memory cells which can take one of m=2.sup.n (n>=2) different programming levels, provides for biasing a memory cell to be sensed in a predetermined condition, so that the memory cell sinks a cell current with a value belonging to a plurality of m distinct cell current values, and for: a) comparing the cell current with a reference current which has a value comprised between a minimum value and a maximum value of said plurality of m cell current values, thus dividing said plurality of cell current values into two sub-pluralities of cell current values, and determining the sub-plurality of cell current values to which the cell current belongs; b) repeating the step a) until the sub-plurality of cell current values to which the cell current belongs comprises only one cell current value, which is the value for the current of the memory cell to be sensed.

Abstract translation: 用于感测可以采用m = 2n（n> = 2）个不同编程级中的一个的多级非易失性存储器单元的串行二分法方法提供在预定条件下偏置待感测的存储器单元，使得存储器 电池以具有多个m个不同电池电流值的值吸收电池电流，并且用于：a）将电池电流与参考电流进行比较，所述参考电流具有包含在所述多个m的最小值和最大值之间的值 电池电流值，从而将所述多个电池电流值分成两个多个电池电流值，并确定电池电流所属的电池电流值的子数量; b）重复步骤a），直到单元电流所属的单元电流值的子多个仅包含一个单元电流值，该单元电流值是要感测的存储单元的电流的值。

公开(公告)号：US5699237A

公开(公告)日：1997-12-16

申请号：US658278

申请日：1996-06-05

Applicant: Giordano Seragnoli

Inventor： Giordano Seragnoli

IPC: H02M3/338 ,  H02M3/335

CPC classification number: H02M3/3385

Abstract: Regulation of the output voltage of a power supply employing a flyback-type self-oscillating DC-DC converter employing a transformer. The primary winding circuit of the transformer senses a current recirculation loop for discharging the energy cyclically stored in an auxiliary winding of the self-oscillation loop of the converter such as to represent a replica of the circuit of the secondary winding of the transformer and by summing a signal representative of the level of the energy stored in the auxiliary winding with a drive signal on a control node of a driver of the power switch of the converter.

Abstract translation: 使用采用变压器的回扫型自激振荡DC-DC转换器的电源的输出电压的调节。 变压器的初级绕组电路感应电流循环回路，用于对循环地存储在转换器的自振荡环路的辅助绕组中的能量进行放电，以表示变压器次级绕组的电路的副本， 代表存储在辅助绕组中的能量的电平的信号，其具有在转换器的电源开关的驱动器的控制节点上的驱动信号。

公开(公告)号：US5696716A

公开(公告)日：1997-12-09

申请号：US794965

申请日：1997-02-04

Applicant: Paolo Rolandi

Inventor： Paolo Rolandi

IPC: G11C29/00 ,  G11C14/00 ,  G11C16/04 ,  G11C16/26 ,  G11C29/04 ,  G11C11/34

CPC classification number: G11C16/0441 ,  G11C14/00 ,  G11C16/26 ,  G11C29/78

Abstract: A non-volatile memory element with dual programmable cells and associated read circuit, which comprises a circuit of the bistable type connected between the two memory cells, to which it is coupled through first and second switching circuit elements. Such switching elements enable a single initial write step by one of the two memory cells only, and thereafter, enable connection of the clear cell and the programmed cell to the bistable circuit.

Abstract translation: 具有双重可编程单元和相关联的读取电路的非易失性存储元件，其包括连接在两个存储器单元之间的双稳态电路，其通过第一和第二开关电路元件耦合到该存储器单元。 这样的开关元件仅能够由两个存储器单元中的一个进行单个初始写入步骤，此后，使透明单元和编程单元能够连接到双稳态电路。

公开(公告)号：US5694363A

公开(公告)日：1997-12-02

申请号：US638976

申请日：1996-04-25

Applicant: Cristiano Calligaro ,  Roberto Gastaldi ,  Nicola Telecco ,  Guido Torelli

Inventor： Cristiano Calligaro ,  Roberto Gastaldi ,  Nicola Telecco ,  Guido Torelli

IPC: G11C11/419 ,  G11C7/06 ,  G11C7/00 ,  G11C7/02

CPC classification number: G11C7/065

Abstract: A device for reading memory cells, wherein the device contains two branches, wherein each branch comprises, connected in cascade, an electronic switch, an active element reactively connected to the active element of the other branch, so as to form a voltage amplifier. Each active element is controlled by means of a high impedance circuit element. A microswitch connects the two branches together is inserted between the two active elements.

Abstract translation: 一种用于读取存储器单元的装置，其中该装置包含两个分支，其中每个分支包括级联连接的电子开关，与另一分支的有源元件反应地连接的有源元件，以形成电压放大器。 每个有源元件通过高阻抗电路元件来控制。 将两个分支连接在一起的微动开关插入两个活动元件之间。

公开(公告)号：US5692041A

公开(公告)日：1997-11-25

申请号：US330540

申请日：1994-10-27

Applicant: Aldo Torazzina

Inventor： Aldo Torazzina

IPC: H04M1/00 ,  H04M1/654 ,  H04M1/738 ,  H04M11/00

CPC classification number: H04M1/654 ,  H04M1/738

Abstract: A telephone subscriber circuit is coupled via a single galvanic isolation element to provide, from a subscriber apparatus unconnected to the telephone line, on- and off-hook signals to the telephone line and to control transfer of telephonic signals between the subscriber apparatus and the telephone line. The galvanic isolation element is a photocoupler. The subscriber circuit includes a speech circuit coupled to the line through a diode bridge circuit and an electronic switch is connected between the speech circuit and the diode bridge circuit. An input terminal of the speech circuit and a control terminal of the electronic switch are each connected through a voltage-generating circuit and level-translating circuit to an output terminal of the galvanic isolation element.

Abstract translation: 电话用户电路经由单独的电隔离元件耦合，以从未连接到电话线路的用户设备提供到电话线的拨号和摘机信号并且控制用户设备和电话之间的电话信号的传送 线。 电隔离元件是光电耦合器。 用户电路包括通过二极管桥接电路耦合到线路的语音电路，并且电子开关连接在语音电路和二极管桥接电路之间。 语音电路的输入端和电子开关的控制端分别通过电压产生电路和电平转换电路连接到电隔离元件的输出端。

公开(公告)号：USRE35642E

公开(公告)日：1997-10-28

申请号：US447184

申请日：1995-05-22

Applicant: Ferruccio Frisina ,  Giuseppe Ferla

Inventor： Ferruccio Frisina ,  Giuseppe Ferla

IPC: H01L27/07 ,  H01L29/76

CPC classification number: H01L27/0716

Abstract: A description is given of two versions of an integrated structure in the emitter switching configuration comprising a high-voltage bipolar power transistor on a low-voltage MOS power transistor. In the vertical MOS version, the emitter region of the bipolar transistor is completely buried, partly in a first N-epitaxial layer and partly in a second N epitaxial layer; the MOS is located above the emitter region. The bipolar is thus completely buried active sturcture. In the horizontal MOS version, in a N-epitaxial layer there are two P+regions, the tint, which constitutes the base of the bipolar transistor, receives the N+emitter region of the same transistor; the second receives two N+regions which constitute the MOS source and drain regions, respectively; the front of the chip is provided with metal plating to ensure the connection between the MOS drain and the bipolar emitter contacts.

Abstract translation: 给出了发射极开关配置中的两个版本的集成结构的描述，其包括在低压MOS功率晶体管上的高压双极型功率晶体管。 在垂直MOS版本中，双极晶体管的发射极区域完全被掩埋，部分地在第一N外延层中，部分地在第二N外延层中; MOS位于发射极区域的上方。 因此，双极型是完全埋藏的主动结构。 在水平MOS版本中，在N外延层中有两个P +区，构成双极晶体管基极的色调接收同一晶体管的N +发射极区; 第二个分别接收构成MOS源极和漏极区域的两个N +区域; 芯片的前部设有金属电镀，以确保MOS漏极和双极发射极触点之间的连接。

公开(公告)号：US5680179A

公开(公告)日：1997-10-21

申请号：US534000

申请日：1995-09-27

Applicant: Viviana D'Alto ,  Massimo Mancuso ,  Rinaldo Poluzzi ,  Gianguido Rizzotto

Inventor： Viviana D'Alto ,  Massimo Mancuso ,  Rinaldo Poluzzi ,  Gianguido Rizzotto

IPC: H03H17/00 ,  H04N5/21 ,  H04N9/64 ,  H04N5/57

CPC classification number: H04N9/646 ,  H04N5/21 ,  H03H2222/02

Abstract: A device for filtering video images, of the type which includes first and second circuit portions, each having first and second input terminals respectively adapted to receive digitalized luminance and chrominance components of a television signal, and an output terminal coinciding with an output terminal of the device. The first and second circuit portions further include first, second and third filters, cascade coupled to one another, and a fourth filter, respectively. The first, second and third filters incorporate a computational circuit which uses a logic of the fuzzy type to process the digitalized luminance component. The fourth filter includes a computational circuit which processes the digitalized chrominance components based upon a parameter supplied from the second filter.

Abstract translation: 一种用于对包括第一和第二电路部分的类型的视频图像进行滤波的装置，每个具有分别适于接收电视信号的数字化亮度和色度分量的第一和第二输入端子，以及与输出端子重合的输出端子 设备。 第一和第二电路部分还包括分别彼此耦合的级联和第四滤波器的第一，第二和第三滤波器。 第一，第二和第三滤波器包括使用模糊类型的逻辑来处理数字化亮度分量的计算电路。 第四滤波器包括基于从第二滤波器提供的参数来处理数字化色度分量的计算电路。

公开(公告)号：US5668494A

公开(公告)日：1997-09-16

申请号：US451030

申请日：1995-05-31

Applicant: Germano Nicollini ,  Sergio Pernici

Inventor： Germano Nicollini ,  Sergio Pernici

IPC: H03F3/68 ,  H03F3/72 ,  H03K17/693 ,  H03F3/18

CPC classification number: H03F3/68 ,  H03F3/72 ,  Y10T307/461

Abstract: An electronic driver circuit for low-impedance loads, being of a type which comprises an input terminal (IN) to which a voltage signal (Vin) is applied for alternate transfer to an output, and a plurality of output terminals (OUTi), each connected to a corresponding electric load (2), further comprises, between the input terminal and the output terminals, a single operational amplifier (3) having multiple output stages (7), one for each output terminal (OUTi). The operational amplifier (3) is of the single-ended or fully differential multistage type and allows each load to be driven alternately by activation of the corresponding output stage (7i).

Abstract translation: 一种用于低阻抗负载的电子驱动电路，它是一种类型，它包括一个输入端（IN），一个电压信号（Vin）被施加到输出的交替传输，以及多个输出端（OUTi） 连接到相应的电负载（2），在输入端和输出端之间还包括具有多个输出级（7）的单个运算放大器（3），每个输出端（OUTi）一个。 运算放大器（3）是单端或全差分多级型，通过激活相应的输出级（7i）可以交替地驱动每个负载。