公开(公告)号：US20060081781A1

公开(公告)日：2006-04-20

申请号：US11240772

申请日：2005-10-03

Applicant: Nathan Bluzer

Inventor： Nathan Bluzer

IPC: G01J5/56

CPC classification number: G01J5/22 ,  G01J5/20 ,  G01J5/24 ,  G01K17/003

Abstract: A thermal radiation sensor is disclosed wherein a semiconductor thermocouple comprised of a pair of silicon diodes is connected in back-to-back relationship, with one of the diodes being located in a detector stage. The other diode is located in a heat bath stage together with a sensed temperature difference amplifier. The detector stage is thermally isolated from the heat bath stage by a low thermal conductivity link that includes electrical wires which connect the back-to-back diodes to the amplifier.

Abstract translation: 公开了一种热辐射传感器，其中由一对硅二极管组成的半导体热电偶以背对背的关系连接，其中一个二极管位于检测器级中。 另一个二极管与感测到的温差放大器一起位于热浴台中。 检测器级通过低导热性链路与热浴级热隔离，该链路包括将背对背二极管连接到放大器的电线。

公开(公告)号：US6016007A

公开(公告)日：2000-01-18

申请号：US206242

申请日：1998-10-16

Applicant: Philip Albert Sanger ,  Frank A. Lindberg ,  Walter Garcen

Inventor： Philip Albert Sanger ,  Frank A. Lindberg ,  Walter Garcen

IPC: H01L23/473 ,  H01L23/34

CPC classification number: H01L23/473 ,  H01L2224/0603 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48139 ,  H01L2224/48227 ,  H01L2224/48472 ,  H01L2224/49111 ,  H01L2224/49113 ,  H01L2224/49175 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/19105

Abstract: A semiconductor cooling arrangement wherein a semiconductor is affixed to a thermally and electrically conducting carrier such as by brazing. The coefficient of thermal expansion of the semiconductor and carrier are closely matched to one another so that during operation they will not be overstressed mechanically due to thermal cycling. Electrical connection is made to the semiconductor and carrier, and a porous metal heat exchanger is thermally connected to the carrier. The heat exchanger is positioned within an electrically insulating cooling assembly having cooling oil flowing therethrough. The arrangement is particularly well adapted for the cooling of high power switching elements in a power bridge.

Abstract translation: 半导体冷却装置，其中半导体例如通过钎焊固定到导热和导电的载体上。 半导体和载体的热膨胀系数彼此紧密地匹配，使得在操作期间，由于热循环，它们不会被机械过度应力。 电连接到半导体和载体上，多孔金属热交换器与载体热连接。 热交换器位于具有流过其中的冷却油的电绝缘冷却组件内。 该装置特别适用于电力桥中的大功率开关元件的冷却。

公开(公告)号：US5982823A

公开(公告)日：1999-11-09

申请号：US044202

申请日：1998-03-17

Applicant: William Edward Jacklin

Inventor： William Edward Jacklin

IPC: H03D3/00 ,  H04B1/30 ,  H04L27/06

CPC classification number: H04B1/30 ,  H03D3/007

Abstract: A method and a coarse tuning circuit for performing direct frequency selection and down-conversion on a received analog bandpass signal for a digital receiver having C channels are disclosed. Each of the C channels has a bandwidth B. The analog bandpass signal in a channel of interest has a center frequency f.sub.c and a two-sided bandwidth not greater than B. The method comprises the following steps: (a) sampling the bandpass signal at a sampling frequency f.sub.s greater than twice the product of B and C, to produce a digital sampled signal which has an intermediate frequency much closer to the baseband frequency of zero kilohertz than the sampling frequency f.sub.s ; (b) computing, from f.sub.c and f.sub.s, a non-negative integer value m to determine the selection of a channel from the C channels of the digital receiver; and (c) forming directly from the digital sampled signal two digital signals I.sub.1 and Q.sub.1 such that they correspond to a digital in-phase component and a quadrature component, respectively, of a complex signal which is approximately centered at a frequency .DELTA.f proximate of the baseband frequency, and which has a frequency spectrum approximately equal to that of the analog bandpass signal.

Abstract translation: 公开了一种用于对具有C通道的数字接收机的接收的模拟带通信号进行直接频率选择和下变频的方法和粗调电路。 每个C通道具有带宽B.感兴趣的通道中的模拟带通信号具有中心频率fc和不大于B的双侧带宽。该方法包括以下步骤：（a）对带通信号进行采样 采样频率fs大于B和C乘积的两倍，以产生一个数字采样信号，其中频频率比采样频率fs更接近于零千赫兹的基带频率; （b）从fc和fs计算非负整数值m以确定从数字接收机的C信道选择一个信道; 并且（c）直接从数字采样信号形成两个数字信号I1和Q1，使得它们分别对应于复数信号的数字同相分量和正交分量，该复信号近似以 基带频率，其频谱近似等于模拟带通信号的频谱。

公开(公告)号：US5590536A

公开(公告)日：1997-01-07

申请号：US420994

申请日：1995-04-13

Applicant: Jiing-Liang Wu

Inventor： Jiing-Liang Wu

IPC: H01F6/06 ,  H02G15/34 ,  F25B19/00

CPC classification number: H02G15/34 ,  H01F6/065 ,  Y02E40/648 ,  Y10S505/706 ,  Y10S505/888

Abstract: A cryogenic bypass current lead to bypass quenched magnets in a string of magnets in a superconducting super collider comprises a HTSC section interposed between a lower conductive body terminal and the conductive of the lead is described.

Abstract translation: 描述了一种低温旁路电流，导致在超导超对撞机中绕过一串磁体中的骤冷磁体，包括插入在下导电体端子和引线导体之间的HTSC部分。

公开(公告)号：US2474162A

公开(公告)日：1949-06-21

申请号：US39636041

申请日：1941-06-02

Applicant: GARRETT CORP AIRES MFG COMPANY

Inventor： RAMSAUR WALTER R

IPC: F01P11/08

CPC classification number: F01P11/08

公开(公告)号：US2218720A

公开(公告)日：1940-10-22

申请号：US26261539

申请日：1939-03-18

Applicant: RCA CORP

Inventor： HERRE RINIA

IPC: H04N5/68 ,  H04Q3/00

CPC classification number: H04N5/68 ,  H04Q3/00 ,  Y10T279/17821

公开(公告)号：US1950984A

公开(公告)日：1934-03-13

申请号：US68134533

申请日：1933-07-19

Applicant: GEN MOTORS CORP

Inventor： HOUSTON JUNIUS W

IPC: B60J1/00

CPC classification number: E05F5/025 ,  E05Y2900/531 ,  Y10S292/39 ,  Y10S292/58 ,  Y10T16/629 ,  Y10T70/8919

公开(公告)号：US07450626B1

公开(公告)日：2008-11-11

申请号：US11655495

申请日：2007-01-19

Applicant: Michael Bass ,  Alexandra Rapaport ,  Stephan Fahr ,  John Koroschetz ,  Brian Brickeen

Inventor： Michael Bass ,  Alexandra Rapaport ,  Stephan Fahr ,  John Koroschetz ,  Brian Brickeen

IPC: H01S5/00 ,  H01S3/08

CPC classification number: H01S3/08009 ,  H01S3/113 ,  H01S3/115 ,  H01S3/1608 ,  H01S3/17

Abstract: Apparatus, methods, systems and devices for providing a temperature independent laser by determining a temperature dependence of a lasing wavelength, selecting the lasing wavelength having minimal temperature dependence and constraining the lasing wavelength of the laser device to the selected lasing wavelength. In an embodiment, a volumetric Bragg grating in photo-thermal refractive glass is used as a laser cavity mirror for constraining the laser emission at the selected wavelength. The laser device may be a broad spectrum laser such as an Er3+ doped glass broad spectrum laser. In an embodiment, the lasers are operated where the temperature dependence of the stimulated emission cross section is used to compensate for temperature dependent changes of other laser components.

Abstract translation: 用于通过确定激光波长的温度依赖性来提供不依赖于温度的激光器的设备，方法，系统和装置，选择具有最小温度依赖性的激光波长并将激光器件的激光波长约束到选定的激光波长。 在一个实施例中，光热折射玻璃中的体积布拉格光栅用作激光腔镜，用于限制所选波长处的激光发射。 激光装置可以是宽光谱激光器，例如掺杂铒3 +的玻璃宽谱激光器。 在一个实施例中，激光器被操作，其中受激发射横截面的温度依赖性用于补偿其他激光器部件的温度依赖性变化。

公开(公告)号：US07190288B2

公开(公告)日：2007-03-13

申请号：US10608932

申请日：2003-06-27

Applicant: Ian Stuart Robinson ,  Jeffrey Mark Hinrichs ,  Jasmine Upendra Patel ,  Paul Charles MacFalda ,  Reza Dehmohseni ,  Frederic J. Harris ,  Kenneth Weber

Inventor： Ian Stuart Robinson ,  Jeffrey Mark Hinrichs ,  Jasmine Upendra Patel ,  Paul Charles MacFalda ,  Reza Dehmohseni ,  Frederic J. Harris ,  Kenneth Weber

IPC: H03M7/00

CPC classification number: H03M7/3015

Abstract: Signal conversion is implemented employing a memory system operating as a look-up table that stores a plurality of sets of output samples associated with each of a plurality of respective input samples. The look-up table thus can generate a corresponding set of output samples in response to a given input sample, thereby emulating desired digital upsampling and delta-sigma modulation. The output samples can be aggregated, such as by multiplexing, to provide an output data stream at a desired sample rate.

Abstract translation: 使用作为查找表操作的存储器系统来实现信号转换，所述查找表存储与多个相应输入样本中的每一个相关联的多组输出采样。 因此，查找表可以响应于给定的输入采样产生相应的一组输出样本，从而仿真期望的数字上采样和Δ-Σ调制。 输出样本可以聚合，例如通过多路复用，以提供期望采样率的输出数据流。

公开(公告)号：US07039126B2

公开(公告)日：2006-05-02

申请号：US09883651

申请日：2001-06-18

Applicant: Joseph E. Galins

Inventor： Joseph E. Galins

IPC: H04L27/36

CPC classification number: H04L27/3488 ,  H04L27/183 ,  H04L27/367

Abstract: A communications system (10) which utilizes an M-ary QAM signal constellation suitable for non-linear applications. The communications system includes a modulator (18) for utilizing the M-ary constellation to implement the modulation. The M-ary constellation is a circular constellation which provides a simplified amplitude predistortion by utilizing the subject M-ary constellations, enabling more efficient communications can then be achieved through a peak-power-limited non-linear channel (16). Such non-linear channels (16) are more power efficient at creating RF energy from DC energy.

Abstract translation: 一种通信系统（10），其利用适用于非线性应用的M元QAM信号星座。 通信系统包括一个用于利用M-ary星座实现调制的调制器（18）。 M-ary星座是一个循环星座，它通过利用目标M-ary星座提供简化的幅度预失真，从而能够通过峰值功率限制非线性信道（16）实现更有效的通信。 这种非线性通道（16）在从DC能量产生RF能量方面更有效率。