公开(公告)号：US08773203B2

公开(公告)日：2014-07-08

申请号：US13512576

申请日：2010-10-19

申请人： Robert Baumgartner ,  Andreas Kornbichler ,  Joachim Walewski

发明人： Robert Baumgartner ,  Andreas Kornbichler ,  Joachim Walewski

IPC分类号： H03F3/18

CPC分类号： H05B33/0809

摘要： An amplifier circuit for actuating a light diode is provided. The amplifier circuit may have a small output impedance of approximately 3 Ohms, a large bandwidth having a lower threshold frequency of 200 kHz and an upper threshold frequency of 5 MHz, for example, and an amplitude of the output current of several 100 mA, for example. The amplifier circuit may have an entry stage for actuating a driver circuit that actuates the light diode by means of a direct current supply.

摘要翻译： 提供了用于致动光二极管的放大器电路。 放大器电路可以具有大约3欧姆的小的输出阻抗，例如具有较低的阈值频率为200kHz和较高阈值频率为5MHz的大带宽以及几个100mA的输出电流的幅度，用于 例。 放大器电路可以具有用于致动通过直流电源致动光二极管的驱动电路的进入级。

公开(公告)号：US08401394B2

公开(公告)日：2013-03-19

申请号：US12918383

申请日：2009-02-25

申请人： Joachim Walewski

发明人： Joachim Walewski

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1141 ,  H04L27/02

摘要： In a method for transmission of digital data in an optical free-space transmission system in which a binary code sequence produced from the digital data is used to transmit amplitude-modulated light waves across an optical free space between a transmitter and a receiver, according to a first aspect, the binary code sequence is produced such that a modulation frequency of the light waves determined by the binary code sequence has a value of 70 Hertz. According to a second aspect, ‘t’ light waves are modulated with the binary code sequence and binary data are transmitted in blocks during a first time period, and non-modulated light waves are emitted during second time periods, wherein the light intensities of the time periods are selected so that the quantities of light transmitted in two periods correspond to predetermined quantities of light.

摘要翻译： 在一种用于在光学自由空间传输系统中传输数字数据的方法中，其中使用从数字数据产生的二进制码序列在发射机和接收机之间的光学自由空间上发射幅度调制的光波，根据 第一方面，产生二进制码序列，使得由二进制码序列确定的光波的调制频率具有70赫兹的值。 根据第二方面，使用二进制码序列调制t个光波，并且在第一时间段期间以块为单位发送二进制数据，并且在第二时间段期间发射非调制光波，其中时间段的光强度 被选择为使得在两个周期中传输的光量对应于预定量的光。

公开(公告)号：US09319134B2

公开(公告)日：2016-04-19

申请号：US13266405

申请日：2010-04-28

申请人： Joachim Walewski

发明人： Joachim Walewski

IPC分类号： H04B10/116 ,  H04B10/11 ,  H04B10/114

CPC分类号： H04B10/1141

摘要： In a method for optically transmitting data by means of a pulse-width-modulated light source (LED), a pulse duty factor (N) of a pulse width modulation is specified to set the brightness of the light source (LED). A bright time (T) is divided into at least a first and second partial bright time using at least one blanking so that the data (DATA) to be transmitted are encoded by the start and time length of the at least one blanking. The sum of the partial bright times within the pulse width modulation cycle substantially corresponds to the bright time according to the specified pulse duty factor.

摘要翻译： 在通过脉冲宽度调制光源（LED）光学传输数据的方法中，指定脉冲宽度调制的脉冲占空比（N）以设置光源（LED）的亮度。 使用至少一个消隐将明亮时间（T）分成至少第一和第二局部明亮时间，使得要发送的数据（DATA）由至少一个消隐的开始和时间长度进行编码。 脉冲宽度调制周期内部分亮度时间的总和大致对应于根据指定脉冲占空系数的亮时间。

公开(公告)号：US09030508B2

公开(公告)日：2015-05-12

申请号：US14110018

申请日：2012-03-28

申请人： Joachim Walewski ,  Michael Bahr

发明人： Joachim Walewski ,  Michael Bahr

IPC分类号： G09G5/02 ,  G03B21/53 ,  H04N9/31 ,  G09G5/10

摘要： A device for optically focusing a projection image projected by a projector includes a detector for controlled creation of at least one observation shot of the projection image over a time period, a processing unit for defining at least one image section within the projection image generated by the projector, where the image section is modulated over the time period with respect to the optical power and/or the optical spectrum thereof, and the at least one image section of the projection image is essentially synchronous compared with the corresponding respective image section of the observation shot, where the processing unit also calculates a variable derived from the comparison of the respective image sections and a control signal derived from the derived variable, and outputs the control signal to a focusing device of the projector.

公开(公告)号：US20140028742A1

公开(公告)日：2014-01-30

申请号：US14110018

申请日：2012-03-28

申请人： Joachim Walewski ,  Michael Bahr

发明人： Joachim Walewski ,  Michael Bahr

IPC分类号： G03B21/53 ,  G09G5/10

CPC分类号： G03B21/53 ,  G09G5/10 ,  H04N9/317 ,  H04N9/3194

摘要： A device for optically focusing a projection image projected by a projector includes a detector for controlled creation of at least one observation shot of the projection image over a time period, a processing unit for defining at least one image section within the projection image generated by the projector, where the image section is modulated over the time period with respect to the optical power and/or the optical spectrum thereof, and the at least one image section of the projection image is essentially synchronous compared with the corresponding respective image section of the observation shot, where the processing unit also calculates a variable derived from the comparison of the respective image sections and a control signal derived from the derived variable, and outputs the control signal to a focusing device of the projector.

摘要翻译： 用于光学聚焦由投影仪投射的投影图像的装置包括：用于在一段时间内控制创建投影图像的观察镜头的检测器;处理单元，用于定义由所述投影图像生成的投影图像内的至少一个图像部分 投影仪，其中图像部分在相对于光功率和/或其光谱的时间段内被调制，并且投影图​​像的至少一个图像部分与观察的对应的相应图像部分基本上是同步的 拍摄，其中处理单元还计算从各个图像部分的比较导出的变量和从导出的变量导出的控制信号，并将控制信号输出到投影仪的聚焦装置。

公开(公告)号：US20110088440A1

公开(公告)日：2011-04-21

申请号：US12999568

申请日：2009-05-29

申请人： Henry Feil ,  Thomas Schaefer ,  Joachim Walewski

发明人： Henry Feil ,  Thomas Schaefer ,  Joachim Walewski

IPC分类号： E05B19/00 ,  F21V33/00

CPC分类号： E05B17/103 ,  G07C9/00182 ,  G07C2009/00785 ,  Y10T70/7791

摘要： A key with a key light function comprising at least one light source (5), a storage circuit (20) for storing at least one code sequence, and a driver unit (10), which converts the stored form of the code sequence into a driving output for the light source (5), wherein the code sequence can be emitted by the light source (5) at a wavelength visible to humans by means of a temporal or color variation of the luminous flux, and the light source (5) can also be used as an orientation light.

摘要翻译： 具有键光功能的键，包括至少一个光源（5），用于存储至少一个代码序列的存储电路（20），以及驱动单元（10），其将所述代码序列的存储形式转换为 驱动光源（5）的输出，其中可以通过光通量的时间或颜色变化以人类可见的波长由光源（5）发射代码序列，并且光源（5） 也可以用作定向灯。

公开(公告)号：US20100316389A1

公开(公告)日：2010-12-16

申请号：US12918383

申请日：2009-02-25

申请人： Joachim Walewski

发明人： Joachim Walewski

IPC分类号： H04B10/00

CPC分类号： H04B10/116 ,  H04B10/1141 ,  H04L27/02

摘要： In a method for transmission of digital data in an optical free-space transmission system in which a binary code sequence produced from the digital data is used to transmit amplitude-modulated light waves across an optical free space between a transmitter and a receiver, according to a first aspect, the binary code sequence is produced such that a modulation frequency of the light waves determined by the binary code sequence has a value of 70 Hertz. According to a second aspect, ‘t’ light waves are modulated with the binary code sequence and binary data are transmitted in blocks during a first time period, and non-modulated light waves are emitted during second time periods, wherein the light intensities of the time periods are selected so that the quantities of light transmitted in two periods correspond to predetermined quantities of light.

摘要翻译： 在一种用于在光学自由空间传输系统中传输数字数据的方法中，其中使用从数字数据产生的二进制码序列在发射机和接收机之间的光学自由空间上发射幅度调制的光波，根据 第一方面，产生二进制码序列，使得由二进制码序列确定的光波的调制频率具有70赫兹的值。 根据第二方面，使用二进制码序列对't'光波进行调制，并且在第一时间段期间以块为单位发送二进制数据，并且在第二时间段期间发射非调制光波，其中， 选择时间段，使得在两个周期中传输的光量对应于预定量的光。

公开(公告)号：US20090279899A1

公开(公告)日：2009-11-12

申请号：US12434980

申请日：2009-05-04

申请人： Joachim Walewski

发明人： Joachim Walewski

IPC分类号： H04B10/12

CPC分类号： G08C23/06 ,  H01S3/06791 ,  H01S3/10092 ,  H01S3/1022

摘要： The present embodiments relate to non-contact transmission of optical signals by an optical waveguide which is provided with a material of which the electron arrangement is able to be put into population inversion. In a first variant, energy is fed to the optical waveguide so that the electron arrangement is held in a state above its thermal equilibrium and below the population inversion, with optical signals being beamed into the optical waveguide with a wavelength exciting the electrons of the inversion material such that a local population inversion is created in a section of the optical waveguide, and subsequently light which is created by spontaneous emission is detected. In a second variant, a local population inversion is created by pump light, with simultaneously optical signals being beamed into the population-inverted section with the emission wavelength and by light created by stimulated emission being detected. In a third variant, light with emission wavelength is beamed into the optical waveguide, the optical signals beamed in with excitation wavelength and the light created by stimulated emission detected.

摘要翻译： 本实施例涉及通过光波导的光信号的非接触传输，光波导具有电子排列能够进行群反转的材料。 在第一变型中，能量被馈送到光波导，使得电子排列保持在高于其热平衡并且低于群体反转的状态，其中光信号被波导到具有激发反转的电子的波长的光波导中 材料，使得在光波导的一部分中产生局部群体反转，并且随后检测由自发发射产生的光。 在第二变型中，通过泵浦光产生局部群体反转，同时光信号被发射到具有发射波长的群体倒置区域中，并且由受激发射产生的光被检测。 在第三种变型中，具有发射波长的光被射入光波导中，光信号被激发为激发波长，并且由受激发射产生的光被检测到。

公开(公告)号：US20140010550A1

公开(公告)日：2014-01-09

申请号：US14004874

申请日：2012-03-16

申请人： Michael Bahr ,  Joachim Walewski

发明人： Michael Bahr ,  Joachim Walewski

IPC分类号： H04B10/116

CPC分类号： H04B10/116

摘要： A method for providing visible notification by a device in a visible-light-communication system based on Institute of Electrical and Electronic Engineers (IEEE) standard 802.15.7, wherein higher levels are allowed to invoke through one standardized interface a medium-access-control sub-layer to provide color-function support and enables invocation of a transmission of color, visibility, and dimming frames by a higher layer, which creates a unified interface between the MAC sub-layer and the higher layers, while providing a primitive for requesting, by the at least one upper layer to the at least one interface of the medium-access-control entity layer, a transmission of at least one visibility frame.

摘要翻译： 一种在基于电气和电子工程师协会（IEEE）标准802.15.7的可见光通信系统中通过设备提供可见通知的方法，其中允许较高级别通过一个标准化接口调用媒体访问控制 子层以提供色彩功能支持，并且能够通过较高层调用颜色，可见性和调光帧的传输，其在MAC子层和较高层之间创建统一的接口，同时提供用于请求的原语 由至少一个上层到介质访问控制实体层的至少一个接口，传输至少一个可见性帧。

公开(公告)号：US20130064541A1

公开(公告)日：2013-03-14

申请号：US13697848

申请日：2011-05-17

申请人： Joachim Walewski

发明人： Joachim Walewski

IPC分类号： H04B10/08

CPC分类号： H04B10/116 ,  H04B10/114

摘要： A method for optically transmitting data between a transmitter and a receiver is disclosed, in which a colour coding method based on a plurality of elemental colours is provided for the coding and transmission of the data, which colour coding method involves a respective elemental colour being sent by a respective transmitter-end optical radiation source and being received at the receiver end by a respective optical radiation receiver. The method provides for a control loop to be formed between the transmitter and the receiver, wherein the transmitter sends calibration messages to the receiver, and wherein a piece of compensation information is ascertained by comparing at least one channel property of at least one received calibration message with a corresponding channel property of at least one previously sent calibration message, and wherein the transmitter takes the compensation information as a basis for adjusting at least one transmission parameter.

摘要翻译： 公开了一种在发射机和接收机之间光学传输数据的方法，其中提供了一种基于多种颜色的颜色编码方法用于数据的编码和传输，该颜色编码方法涉及发送的各种基本颜色 通过相应的发射机端光辐射源，并在相应的光辐射接收器处在接收端接收。 该方法提供在发射机和接收机之间形成的控制环路，其中发射机向接收机发送校准消息，并且其中通过比较至少一个接收到的校准消息的至少一个信道属性来确定一条补偿信息 具有至少一个先前发送的校准消息的对应的信道属性，并且其中，所述发射机将所述补偿信息作为用于调整至少一个传输参数的基础。