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    • 1. 发明授权
    • Multi-channel transponder with channel amplification at a common lower
frequency
    • 多通道转发器,通道放大频率较低
    • US5613197A
    • 1997-03-18
    • US334491
    • 1994-11-03
    • Wilbert B. CopelandErik SoderburgJohn DunwoodyRobert BrunnerKeith Williams
    • Wilbert B. CopelandErik SoderburgJohn DunwoodyRobert BrunnerKeith Williams
    • H03D7/16H03J5/02H03L7/185H04B1/40H04B7/14
    • H03D7/163H03J5/0281H03L7/185H04B1/40
    • Input RF signals to a transponder, such as a communications satellite, are down converted to a lower intermediate frequency (IF) that is common for each different channel. The channel signals are all processed at the common IF, and then up converted to different respective transmission frequencies. This allows for a down conversion/signal processing/up conversion unit design that is the same for each channel (except for frequency and gain values), and facilitates the use of inexpensive available standard components as well as low bandwidth channel filters. An improved phase noise cancellation phase lock loop (PLL) is preferably used to generate tuning signals used in the up and down conversion processes. The PLL includes two loop mixers, with the down and up conversion mixing signals taken respectively from the inputs to the first and second loop mixers. The first and second loop mixers receive mixing signals at frequencies (T-R) and (T-IF-N.multidot.CLK) respectively, where T is the channel's transmission frequency, R is its reception frequency, N is the PLL's .div.N factor, and CLK is a clock frequency; the PLL's voltage controlled oscillator provides the down conversion tuning signal and the input to the first loop mixer at a frequency (R-IF), while a (T-IF) tuning signal for the up converter is taken from a filtered output of the first loop mixer.
    • 向诸如通信卫星的应答器输入RF信号被下变频到每个不同信道共同的较低中频(IF)。 通道信号全部在公共IF处理,然后上变频到不同的各自的传输频率。 这允许对于每个通道(频率和增益值除外)相同的下变频/信号处理/上变频单元设计,并且便于使用便宜的可用标准组件以及低带宽通道滤波器。 改进的相位噪声消除锁相环(PLL)优选地用于产生在上下转换过程中使用的调谐信号。 PLL包括两个环路混频器,其中分别从输入到第一和第二回路混频器的下变频和上变频混频信号。 第一和第二回路混频器分别以频率(TR)和(T-IF-NxCLK)接收混频信号,其中T是信道的传输频率,R是其接收频率,N是PLL的DIVIDED N因子,CLK是 时钟频率; PLL的压控振荡器以频率(R-IF)提供下变频调谐信号和第一回路混频器的输入,而用于上转换器的(T-IF)调谐信号从第一 回路混合器。
    • 2. 发明授权
    • Radiation scribed waveguide coupling for photonic circuits
    • 用于光子电路的辐射划线波导耦合
    • US09329341B2
    • 2016-05-03
    • US13591359
    • 2012-08-22
    • Robert BrunnerQing XuStephane Lessard
    • Robert BrunnerQing XuStephane Lessard
    • G02B6/13G02B6/122
    • G02B6/13G02B6/1221G02B6/125G02B6/29331
    • Optical waveguide coupling ratios can be modified for a package by providing a substrate with a photonic circuit disposed on a first section of the substrate and a plurality of optical waveguides formed in glass disposed on a second section of the substrate, the waveguides being connected to the photonic circuit, adjacent ones of the waveguides having a fixed coupling ratio. A three-dimensional region of the glass abutting an end of one or more of the waveguides is lased to change a refractive index of the glass in each three-dimensional region, and thereby extend a length of each waveguide abutting one of the three-dimensional regions so that the coupling ratio between that waveguide and an adjacent waveguide is changed as a function of the extended length. The lasing is controlled based on feedback so that each coupling ratio changed by the lasing varies by less than a target amount.
    • 光波导耦合比可以通过提供衬底上设置在衬底的第一部分上的光子电路和在衬底的第二部分上形成的多个形成在玻璃上的光波导来修改封装,波导连接到 光子电路,相邻的波导具有固定的耦合比。 靠近一个或多个波导的端部的玻璃的三维区域被改变以改变每个三维区域中的玻璃的折射率,从而使每个波导的长度相对于三维 区域,使得该波导和相邻波导之间的耦合比作为延长长度的函数而改变。 基于反馈来控制激光,使得由激光改变的每个耦合比率变化小于目标量。
    • 3. 发明授权
    • Audio listening system
    • 音响系统
    • US09084055B2
    • 2015-07-14
    • US13517035
    • 2011-12-22
    • Robert BrunnerGregoire VandenbusscheChris Fruhauf
    • Robert BrunnerGregoire VandenbusscheChris Fruhauf
    • H04R25/00H04R1/10H04R5/033
    • H04R1/1091H04R1/1066H04R1/1075H04R5/0335
    • A headphone assembly is provided and includes a headband assembly comprising at least one end; an ear-cup assembly pivotably engaged to the headband assembly by an engagement structure positioned proximate to the at least one end of the headband assembly, the ear-cup assembly comprising a cap and a housing, wherein the cap and the housing are connected to form an enclosed space inside the ear-cup assembly; a transducer configured to produce sound and positioned within the enclosed space of the ear-cup assembly; and a damper rim positioned between the ear-cup assembly and the at least one end of the headband assembly, the damper rim covering the engagement structure and being engaged to the ear-cup assembly and the at least one end of the headband assembly.
    • 耳机组件被提供并且包括头带组件,其包括至少一个端部; 耳杯组件,其可通过靠近头带组件的至少一个端部定位的接合结构枢转地接合到头带组件,所述耳杯组件包括帽和壳体,其中帽和壳体连接形成 耳杯组件内的封闭空间; 被配置为产生声音并定位在耳杯组件的封闭空间内的换能器; 以及位于耳杯组件和头带组件的至少一个端部之间的阻尼器边缘,阻尼器边缘覆盖接合结构并且接合到耳杯组件和头带组件的至少一个端部。
    • 4. 发明授权
    • Optical physical interface module
    • 光学物理接口模块
    • US08781267B2
    • 2014-07-15
    • US13360236
    • 2012-01-27
    • Martin JulienRobert Brunner
    • Martin JulienRobert Brunner
    • G02B6/36
    • G02B6/4231G02B6/3885G02B6/3897G02B6/4293G02B6/43H04B10/25H04B10/40H04B10/801H04B10/808
    • An optical physical interface module is provided which includes a first optical physical interface, a second optical physical interface and one or more optical components. The first optical physical interface is configured to plug into a first connector and communicate optical signals toward the first connector. The second optical physical interface is configured to receive a second connector and communicate optical signals toward the second connector. The one or more optical components are operable to process optical signals between the first and second optical physical interfaces. The optical physical interface module may be provided at the edge of a circuit board so that the circuit board has an optical interface for external communication. The optical physical interface module may be a stand-alone module or integrated into a connector of an optical cable, among other configurations.
    • 提供了一种光学物理接口模块,其包括第一光学物理接口,第二光学物理接口和一个或多个光学部件。 第一光学物理接口被配置成插入第一连接器并将光信号传送到第一连接器。 第二光学物理接口被配置为接收第二连接器并且向第二连接器传送光信号。 一个或多个光学部件可操作以处理第一和第二光学物理接口之间的光信号。 光学物理接口模块可以设置在电路板的边缘处,使得电路板具有用于外部通信的光学接口。 光学物理接口模块可以是独立模块或集成到光缆的连接器中,以及其他配置。