公开(公告)号：US20050271129A1

公开(公告)日：2005-12-08

申请号：US11014452

申请日：2004-12-15

Applicant: Guy Reina

Inventor： Guy Reina

IPC: H04L27/26 ,  H04B1/38

CPC classification number: H04L5/0091 ,  H04L1/0025 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0048

Abstract: A method for coordinating and synchronizing a mode transition in a Discrete Multi-Tone (DMT) communication system operating over a range of tones. The method includes allocating a set of one or more of the tones in the range to serve as monitor tones for signaling the mode transition. The mode transition is signaled by transmitting a known transition sequence on the monitor tones over two or more successive symbol intervals while simultaneously transmitting data on at least some of the tones in the range other than the monitor tones.

Abstract translation: 一种用于协调和同步在一系列音调上操作的离散多音（DMT）通信系统中的模式转换的方法。 该方法包括在该范围内分配一组或多个音调以用作用于发信号通知模式转换的监听音。 通过在两个或更多个连续的符号间隔上的监视音上发送已知的转换序列，同时在除监视音之外的范围内的至少一些音调上发送数据来发信号通知模式转换。

公开(公告)号：US20050253043A1

公开(公告)日：2005-11-17

申请号：US11104749

申请日：2005-04-13

Applicant: Matthew Purcell ,  Robert Henderson

Inventor： Matthew Purcell ,  Robert Henderson

IPC: H01L27/00 ,  H04N5/335

CPC classification number: H04N5/335

Abstract: An image sensor includes an array of pixels arranged in rows and columns. A reference current source provides the reference current to a transistor forming one half of a current mirror. Each column has a current source, which forms the other half of a current mirror. A switch is provided to selectively connect a resistance between ground and the transistor. When the resistance is connected, the transistor is starved of gate-source voltage, which reduces the current supplied by each current source.

Abstract translation: 图像传感器包括排列成行和列的像素阵列。 参考电流源为形成电流镜的一半的晶体管提供参考电流。 每列都有一个电流源，它形成当前镜像的另一半。 提供开关以选择性地连接接地和晶体管之间的电阻。 当电阻连接时，晶体管缺乏栅极 - 源极电压，这降低了每个电流源提供的电流。

公开(公告)号：US06961741B2

公开(公告)日：2005-11-01

申请号：US10076116

申请日：2002-02-14

Applicant: Parvesh Swami

Inventor： Parvesh Swami

IPC: G06F1/035 ,  G06F7/50 ,  G06F7/501 ,  H03K19/177 ,  G06F7/38

CPC classification number: G06F7/501 ,  G06F1/0356 ,  H03K19/17728

Abstract: A look-up table apparatus is provided for performing two-bit arithmetic operation including carry generation. The look-up table is modified to perform two concurrent combinatorial functions, or one function for an increased number of inputs. The look-up table can implement two full adders or subtractors, or two-bit counters, for example. One portion of the modified look-up table provides two bits of a sum output, and another portion of the modified table provides a fast carry out signal for application to a next stage of an adder/subtractor/counter.

Abstract translation: 提供了一种用于执行包括进位产生的两比特算术运算的查找表装置。 查找表被修改为执行两个并发组合函数，或者一个增加数量的输入的函数。 查找表可以实现两个完整的加法器或减法器，例如两位计数器。 经修改的查找表的一部分提供了和输出的两个比特，并且修改的表的另一部分提供了一个快速进位信号，用于应用于加法器/减法器/计数器的下一个级。

公开(公告)号：US20050213718A1

公开(公告)日：2005-09-29

申请号：US10969442

申请日：2004-10-20

Applicant: Guy Reina

Inventor： Guy Reina

IPC: H04L27/26 ,  H04M11/00

CPC classification number: H04L27/2608

Abstract: A method for data communication includes providing an order for assigning bits of an input data stream to tones in a multi-tone modulation scheme, and allocating respective bit-loading values to the tones, such that some of the tones are allocated a first bit-loading value and other tones are allocated at least one second bit-loading value. The order is modified so as to form pairs of the tones that are allocated the first bit-loading value, with one or more of the other tones intervening between at least some of the pairs. The input data stream is modulated by assigning the bits to the tones in accordance with the modified order and the respective bit-loading values, and encoding the bits that are assigned to each of the pairs of the tones as a constellation point.

Abstract translation: 一种用于数据通信的方法包括：提供用于将输入数据流的位分配给多音调制方案中的音调的顺序，以及将各个位加载值分配给音调，使得一些音调被分配第一位 - 负载值和其他音调被分配至少一个第二位负载值。 顺序被修改以便形成分配有第一比特加载值的音调对，其中介于至少一些对之间的一个或多个其他音调。 通过根据修改的顺序和相应的位加载值将比特分配给音调，并且将分配给每对音调的比特的编码作为星座点进行编码来调制输入数据流。

公开(公告)号：US20050134567A1

公开(公告)日：2005-06-23

申请号：US10978925

申请日：2004-11-01

Applicant: Jeffrey Raynor

Inventor： Jeffrey Raynor

IPC: G06F3/03 ,  G06F3/0354 ,  G09G5/00 ,  G09G5/08

CPC classification number: G06F3/0317 ,  G06F3/03543

Abstract: An optical pointing device includes a variable frame rate controller to reduce power consumption. Frame rate can be varied through analog devices by varying the reference current, or through digital devices by varying the length of time between successive frames. The variable frame rate controller can accept input from various measurements such as velocity of the device, or a spatial frequency of the surface on which the device is situated.

Abstract translation: 光学指向装置包括可变帧速率控制器以降低功耗。 通过改变参考电流，或通过改变连续帧之间的时间长度，通过数字设备，可以通过模拟设备改变帧速率。 可变帧速率控制器可以接受来自各种测量的输入，例如设备的速度或设备所在的表面的空间频率。

公开(公告)号：US06885699B2

公开(公告)日：2005-04-26

申请号：US10206156

申请日：2002-07-25

Applicant: Rami Verbin

Inventor： Rami Verbin

IPC: H04L25/02 ,  H04L27/00 ,  H04L27/26 ,  H04B1/38

CPC classification number: H04L25/0286 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2657 ,  H04L27/3411 ,  H04L27/3455

Abstract: A method for transmission of high-speed digital signals includes transmitting a data signal over a communication line responsive to input data, the data signal having a data frequency spectrum. During an idle interval in the input data, two idle signals are transmitted in alternation: a first idle signal, having a first frequency spectrum that is substantially stationary relative to the data frequency spectrum, and a second idle signal, having a second frequency spectrum that is substantially non-stationary relative to the data frequency spectrum.

Abstract translation: 用于传输高速数字信号的方法包括响应于输入数据通过通信线路发送数据信号，数据信号具有数据频谱。 在输入数据的空闲间隔期间，交替地发送两个空闲信号：具有相对于数据频谱基本静止的第一频谱的第一空闲信号和具有第二频谱的第二空闲信号， 相对于数据频谱基本上是非固定的。

公开(公告)号：US20050008197A1

公开(公告)日：2005-01-13

申请号：US10412645

申请日：2003-04-11

Applicant: Carl Dennis

Inventor： Carl Dennis

IPC: G06K9/00

CPC classification number: G06K9/00013 ,  G06K9/00114

Abstract: The optical biometric sensor apparatus and methods for analyzing images of biometric features such as fingerprints are adapted to distinguish between live body members and inanimate objects, and to detect spoofing devices applied to live body members. Live body members are detected by transmitting IR light from a first IR light source through an object to an image sensor. The IR transmission characteristics of a live body member vary with the human heartbeat, and multiple images are analyzed to verify whether the object is a genuine live body member. A visible light source illuminates the object for obtaining a detailed image from the sensor for conventional biometric analysis. Transmitted IR images and reflected visible light images are also processed to detect the presence of spoofing devices applied to live body members. Multiple IR and visible light sources of different wavelengths may be used for this purpose.

Abstract translation: 用于分析诸如指纹的生物特征的图像的光学生物特征传感器装置和方法适于区分活体成员和无生命物体，并且检测应用于活体成员的欺骗装置。 通过将来自第一IR光源的IR光通过物体传输到图像传感器来检测活体成员。 活体成员的红外透射特性随着人体心跳而变化，分析多个图像以验证物体是否是真正的活体成员。 可见光源照亮对象以从传感器获得用于常规生物测定分析的详细图像。 传输的IR图像和反射的可见光图像也被处理以检测应用于活体成员的欺骗装置的存在。 为此，可以使用不同波长的多个IR和可见光源。

公开(公告)号：US20040114542A1

公开(公告)日：2004-06-17

申请号：US10318423

申请日：2002-12-13

Applicant: TIOGA TECHNOLOGIES LTD ,  STMicroelectronics Ltd.

Inventor： Danny Stopler

IPC: H04B003/20

CPC classification number: H04B3/23 ,  H04M9/082

Abstract: A receiver for receiving an incoming signal over a communication medium includes an echo canceller, which is adapted to receive an outgoing signal transmitted over the communication medium, and to process the outgoing signal using a set of variable processing coefficients in order to generate an echo cancellation signal. A summer combines the incoming signal with the echo cancellation signal so as to generate an echo-cancelled signal. An equalizer applies an equalization operation to the echo-cancelled signal so as to generate an equalized signal. A residual echo cancellation circuit processes the equalized signal so as to adaptively update the variable processing coefficients of the echo canceller.

Abstract translation: 用于通过通信介质接收输入信号的接收机包括回波消除器，其适于接收通过通信介质发送的输出信号，并且使用一组可变处理系数来处理输出信号，以便产生回声消除 信号。 夏天将输入信号与回波消除信号相结合，以产生回声消除信号。 均衡器对回波消除信号施加均衡操作，以产生均衡的信号。 残余回波消除电路处理均衡信号，以自适应地更新回波消除器的可变处理系数。

公开(公告)号：US20030218195A1

公开(公告)日：2003-11-27

申请号：US10401276

申请日：2003-03-27

Applicant: STMicroelectronics Ltd.

Inventor： Jeff Raynor

IPC: H01L031/062 ,  H01L031/113

CPC classification number: H01L27/14609

Abstract: A solid state image sensor has an array of pixels formed on an epitaxial layer on a substrate. Each pixel is relatively large so that it has a high light collecting ability, such as 40-60 nullm, but the pixel photodiode is relatively small so that it has a low capacitance, such as 4-6 nullm. Active elements of the pixel photodiode are formed in wells that are spaced away from the pixel photodiode so that the latter is surrounded by epitaxial material.

Abstract translation: 固态图像传感器具有形成在衬底上的外延层上的像素阵列。 每个像素相对较大，因此其具有高的聚光能力，例如40-60μm，但像素光电二极管相对较小，因此其具有低电容，例如4-6μm。 像素光电二极管的有源元件形成在与像素光电二极管间隔开的阱中，使得其被外延材料包围。

公开(公告)号：US20030164443A1

公开(公告)日：2003-09-04

申请号：US10350166

申请日：2003-01-23

Applicant: STMicroelectronics Ltd

Inventor： Robert Henderson

IPC: H01L027/00

CPC classification number: H04N5/3653 ,  H04N5/3745

Abstract: An image sensor includes pixels which are of the four-transistor, PIN photodiode type. In each pixel, the charge on a photodiode is transferred by a transfer gate to a sensing node. Readout of reset and read voltages is via an amplifier. A gain capacitor is connected in feedback across the amplifier. Read and reset gates are controlled so that the pixel is reset to a virtual ground voltage controlled by the gain capacitor. This is independent of the pixel parasitic capacitance.

Abstract translation: 图像传感器包括四晶体管PIN光电二极管类型的像素。 在每个像素中，光电二极管上的电荷通过传输门传输到感测节点。 通过放大器读出复位和读取电压。 增益电容器连接在放大器的反馈中。 读取和复位门被控制，使得像素被复位到由增益电容器控制的虚拟接地电压。 这与像素寄生电容无关。