公开(公告)号：US20030178552A1

公开(公告)日：2003-09-25

申请号：US10364571

申请日：2003-02-10

Inventor： Rudolf J. Hofmeister ,  Frank H. Levinson ,  Jan Lipson

IPC: H01J040/14

CPC classification number: H04B10/6911

Abstract: An optical signal receiver has an increased dynamic range for detecting optical signals whose intensity varies over a wide range. In one embodiment, the optical signal receiver includes a circuit operable to provide a reverse bias voltage and an avalanche photo-diode (APD) coupled to the circuit to receive the reverse bias voltage. The circuit is operable to lower the reverse bias voltage in response to an increase in power of the received optical signals. Since the current gain of the APD is a function of the reverse bias voltage, the circuit indirectly lowers the current gain of the APD in response to the increase in power of the received optical signals. As a result, the optical signal receiver can be used to detect optical signals whose intensity varies over a broad range.

Abstract translation: 光信号接收机具有增加的动态范围，用于检测强度在宽范围内变化的光信号。 在一个实施例中，光信号接收器包括可操作以提供反向偏置电压的电路和耦合到电路的雪崩光电二极管（APD），以接收反向偏置电压。 该电路可操作以响应于所接收的光信号的功率的增加而降低反偏压。 由于APD的当前增益是反向偏置电压的函数，所以电路响应于接收到的光信号的功率的增加而间接地降低APD的电流增益。 结果，光信号接收机可用于检测其强度在宽范围内变化的光信号。

公开(公告)号：US20030127582A1

公开(公告)日：2003-07-10

申请号：US10041474

申请日：2002-01-10

Inventor： Gareth Jones

IPC: H01J040/14

CPC classification number: H01J43/30 ,  H01J43/04 ,  H01J43/246

Abstract: In a conventional a photomultiplier tube, the present method provides for shorting the last stage or stages of dynodes to the anode, thereby causing photoelectrons therein to impact a smaller number of dynodes effectively reducing the transit time of electrons through the photomultiplier.

Abstract translation: 在常规的光电倍增管中，本方法提供了将阳极的最后阶段或阶段短路到阳极，从而使其中的光电子能够影响较少数量的倍增电极，从而有效地减少电子通过光电倍增管的通过时间。

公开(公告)号：US20030122058A1

公开(公告)日：2003-07-03

申请号：US10327886

申请日：2002-12-26

Inventor： Yaomin Lin ,  Ying-Cheun Spring Yeh ,  Chih-Wei Chi ,  Hau-Wei Wang

IPC: H01J040/14

CPC classification number: G01N21/27 ,  G01N2201/0691

Abstract: An image-sensing method uses a modulated light as the light source. The image sensing method comprises the steps of using the modulated light to a sample to generate a modulated light signal, transmitting the modulated light signal to a light sensing element to convert the modulated light signal to an AC image signal, transmitting the AC image signal to an AC/DC conversion circuit to convert the AC image signal to a DC image signal according to the modulation frequency of the modulated light and forming the DC image signal. The image-sensing method effectively prevents interference of stray light and electronic noise.

Abstract translation: 图像感测方法使用调制光作为光源。 图像感测方法包括以下步骤：使用调制光到样本以产生调制光信号，将调制的光信号传输到光感测元件，以将调制的光信号转换为AC图像信号，将AC图像信号发送到 AC / DC转换电路，根据调制光的调制频率将AC图像信号转换为DC图像信号，形成DC图像信号。 图像感测方法有效防止杂散光和电子噪声的干扰。

公开(公告)号：US20030122057A1

公开(公告)日：2003-07-03

申请号：US10283946

申请日：2002-10-30

Inventor： Jin-Soo Han ,  Moo-Jung Chu ,  Jong-Hyun Lee

IPC: H01J040/14

CPC classification number: H04B10/697

Abstract: Provided are an optical signal receiving apparatus whose optimum receiving performance is maintained regardless of a change in the power of an optical signal, and a method using the same. The apparatus includes an optical coupler for dividing an input optical signal at a predetermined ratio to produce first and second divided signals, a photoelectric converter for converting the first divided signal into an electric signal, an amplifier for amplifying the electric signal within a predetermined range centering on a reference voltage, a reference voltage controlling unit for detecting the power of the second divided signal, predicting the power of the first divided signal, and controlling the amplitude of the reference voltage in accordance with the predicted power, and a clock & data recovery unit for recovering a clock signal and data from a signal output from the amplifier. Even if the power of an optical signal changes, the reference voltage of a limiting amplifier, which is best suitable for optimum performance with respect to the power of an input optical signal, can be detected and adjusted using the method and apparatus, thereby maintaining the optimum receiving performance of the optical signal receiving apparatus.

Abstract translation: 提供了一种光信号接收装置及其使用方法的光接收装置，其优良的接收性能被保持，而与光信号的功率的变化无关。 该装置包括用于以预定比例分割输入光信号以产生第一和第二分频信号的光耦合器，用于将第一划分信号转换为电信号的光电转换器，用于在预定范围内放大电信号的放大器对中 在参考电压上，参考电压控制单元，用于检测第二分频信号的功率，预测第一分频信号的功率，并根据预测功率控制参考电压的振幅;以及时钟和数据恢复 用于从放大器输出的信号中恢复时钟信号和数据的单元。 即使光信号的功率发生变化，也可以使用该方法和装置来检测和调整限制放大器的参考电压，该极限放大器最适合于对于输入光信号的功率的最佳性能，从而保持 光信号接收装置的最佳接收性能。

公开(公告)号：US20030098412A1

公开(公告)日：2003-05-29

申请号：US10298645

申请日：2002-11-19

Applicant: SPX Corporation

Inventor： Robert A. Gentala

IPC: H01J007/24 ,  H01J040/14

CPC classification number: G01N21/534 ,  G01N1/2252 ,  G01N21/33 ,  G01N21/3504 ,  G01N2001/2264 ,  G01N2021/3155 ,  G01N2021/3174 ,  G01N2021/3513

Abstract: A new type of mounting mechanism for a light detector that cools the mounting for a light detector such that the maximum efficiency of the light detector's internal cooler can be achieved despite an elevated enclosure temperature, leading to more stable measurements of light from the detector. This same mounting provides thermal isolation from a baseplate, to which other optical path components are attached.

Abstract translation: 一种用于光检测器的新型安装机构，其用于冷却用于光检测器的安装件，使得尽管升高的外壳温度可以实现光检测器的内部冷却器的最大效率，从而导致来自检测器的光的更稳定的测量。 这种相同的安装提供了与底板的热隔离，其它光路部件连接到基板。

公开(公告)号：US20030094567A1

公开(公告)日：2003-05-22

申请号：US10199811

申请日：2002-09-30

Inventor： Gene Ottes Ennes

IPC: H01J040/14

CPC classification number: G10H3/06 ,  G01H9/00 ,  G10H3/18 ,  G10H2220/165 ,  G10H2220/411

Abstract: An optoelectronic pickup that generates a fluctuating voltage that is analogous to the vibrations of a vibrating body. When utilized with the vibrating body of a musical instrument and amplified and fed to a speaker the musical tones are reproduced at an amplified level. When the signal is fed to an FM transmitter the musical tones can be reproduced in any FM radio receiver. The device makes possible portable electric instruments and nullwirelessnull-electrical instruments, i.e. a guitar that does not require a connecting cord or amplifier. The device anticipates new and unique musical instruments.

Abstract translation: 产生类似于振动体的振动的波动电压的光电拾取器。 当与乐器的振动体一起使用并放大并馈送到扬声器时，乐音以放大的水平被再现。 当信号馈送到FM发射机时，可以在任何FM无线电接收机中再现乐音。 该装置使得便携式电子仪器和“无线”电器乐器成为可能，即不需要连接线或放大器的吉他，该装置预期新的和独特的乐器。

公开(公告)号：US20030089841A1

公开(公告)日：2003-05-15

申请号：US10265442

申请日：2002-10-07

Inventor： Li Zheng-Yi

IPC: H01J040/14

CPC classification number: H03H11/14

Abstract: The present invention relates to a wave-filtering device with an adjustable frequency bandwidth installed in an output unit of an integrated system. The wave-filtering device is used for receiving a first output signal comprising an alternating current signal and a direct current bias voltage, and comprises a direct current bias voltage detector for receiving the first output signal and obtaining a control voltage according to the direct current bias voltage. A low-pass wave filter is electrically connected to the direct current bias voltage detector and receives the control voltage so as to adjust the frequency bandwidth. The low-pass wave filter is used for receiving the first output signal and obtaining a second output signal to be the output of the wave-filtering device with adjustable frequency bandwidth. The low-pass wave filter comprises a variable resistance the value of which varies in accordance with the value of the control voltage.

Abstract translation: 本发明涉及安装在集成系统的输出单元中的具有可调频带宽度的波滤波装置。 波滤波装置用于接收包括交流信号和直流偏置电压的第一输出信号，并且包括用于接收第一输出信号并根据直流偏置获得控制电压的直流偏置电压检测器 电压。 低通滤波器电连接到直流偏置电压检测器并接收控制电压以便调整频率带宽。 低通滤波器用于接收第一输出信号，并获得第二输出信号作为具有可调频率带宽的波滤波装置的输出。 低通滤波器包括可变电阻，其值根据控制电压的值而变化。

公开(公告)号：US20030047669A1

公开(公告)日：2003-03-13

申请号：US09951878

申请日：2001-09-13

Applicant: Toshiba Tac Kabushiki Kaisha

Inventor： Takahisa Hirano

IPC: H01J040/14

CPC classification number: B65H7/14 ,  B65H2511/51 ,  B65H2511/515 ,  B65H2513/50 ,  B65H2515/60 ,  B65H2553/414 ,  B65H2557/61 ,  B65H2220/03 ,  B65H2220/01

Abstract: The light sensor apparatus uses a light-emitting element which irradiates light on a detection area and a light-receiving element which receives light from the detection area. The light-receiving element sets the threshold level to an intermediate level between an output level when a detection target object exists within the detection area and an output level when the detection target object does not exist within the detection area. As a result of this, the threshold level is constantly set to a level in compliance with the detection target object such as a paper, a mark, or the like.

Abstract translation: 光传感器装置使用将光照射在检测区域上的发光元件和从检测区域接收光的受光元件。 受光元件将检测对象对象存在于检测区域内的输出水平和检测对象物不存在于检测区域内的输出水平之间的阈值水平设定为中间水平。 作为其结果，阈值水平恒定地设定为与检测目标对象（例如纸张，标记等）一致的水平。

公开(公告)号：US20030034440A1

公开(公告)日：2003-02-20

申请号：US09933416

申请日：2001-08-20

Inventor： Brian Darrell Hollis ,  Robert Albert Lammlein JR. ,  Thomas Alan Murray ,  Raymond Patrick Eckman ,  William George Burton

IPC: G06M007/00 ,  H01J040/14

CPC classification number: G01B5/043

Abstract: The disclosed roller switch has a roller, a flag arm, and a photoelectric detector. The roller is connected to the flag arm and vertical movement of the roller causes the flag arm to move. The movement of the flag arm causes the photoelectric detector to send a signal. The signal may be used to measure the length of a material passing under the roller. The inventive roller switch has a pair of flag arms, and the roller is mounted on a shaft extending between the pair of flag arms. By providing a pair of flag arms connected by the roller, the roller switch is more robust and durable. The roller switch is also capable of pivoting across a conveyor belt.

Abstract translation: 所公开的辊开关具有辊，标志臂和光电检测器。 辊子连接到标志臂，辊子的垂直运动使旗臂移动。 标志臂的移动使光电检测器发出信号。 该信号可用于测量在辊下方通过的材料的长度。 本发明的滚子开关具有一对标志臂，并且滚子安装在延伸在一对标志臂之间的轴上。 通过提供由辊连接的一对标志臂，滚子开关更坚固耐用。 滚轮开关还能够跨越输送带枢转。

公开(公告)号：US20030029991A1

公开(公告)日：2003-02-13

申请号：US10180996

申请日：2002-06-27

Inventor： Akihiro Hayami ,  Tadaaki Fujii ,  Tomonao Kikuchi ,  Tadashi Hatano ,  Yasuhiro Yamada ,  Takayuki Nakao ,  Tomoaki Shimotsu ,  Toshiaki Murai ,  Tohru Oyama ,  Hidehiro Ikeuchi ,  Masayuki Miyoshi

IPC: H01J040/14

CPC classification number: H03F1/30 ,  H04B10/69

Abstract: A temperature compensating circuit includes a first circuit network 1 between an inverting input terminal of an operational amplifier 13 and an output terminal of the operational amplifier 13, and a second circuit network 2 between the inverting input terminal of the operational amplifier 13 and a reference potential. At least one of the first circuit network and the second circuit network is made of an arrangement containing a plurality of series-connected thermistor/resistor pairs in which the thermistors are connected parallel to the resistors, and the temperature compensating circuit compensates a temperature-dependent signal which is inputted into a positive phase input terminal of the operational amplifier 13, and outputs the temperature-compensated signal.