专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4433348A Apparatus and method for requiring proper synchronization of a digital data flow 失效
标题翻译：要求数字数据流的正确同步的装置和方法
公开(公告)号：US4433348A
公开(公告)日：1984-02-21
申请号：US299829
申请日：1981-09-08
申请人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
发明人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
IPC分类号： G11B20/18 , G11B27/30 , G11B5/09
CPC分类号： G11B27/3027 , G11B20/1803
摘要： The synchronization circuitry can be described as operating in essentially four states and is particularly useful at startup, to locate synchronization codes and spacing there between in the data flows. In operation, the synchronization circuitry looks in a data flow at startup for any sync code and, when such sync code is found, counts ahead to where the next sync code should be. If a proper sync code is found, again the circuitry counts ahead to where the next sync code should be, continuing looking at points along the data flow until a certain number (n) of properly located sync codes are discovered whereat synchronization is declared and normal playback is ordered. However, if sync codes are not located where they should be in the data flow, then such failures are subtracted from success until either (n) successes are found or a total of successes less failures reaches zero whereat the circuitry returns to the first state of looking for any sync code.
摘要翻译：同步电路可以被描述为在基本上四个状态下操作，并且在启动时特别有用，以便在数据流中定位同步码和间隔。在操作中，同步电路在启动时查看任何同步码的数据流，并且当找到这样的同步码时，提前计数下一个同步码应该在何处。如果找到适当的同步代码，则再次将电路提前到下一个同步代码应该在哪里，继续查看沿着数据流的点，直到发现正确定位的同步码的数量（n），同时声明正常播放已订购。然而，如果同步码不在数据流中，那么从成功中减去这样的故障，直到找到成功（n）成功，否则总共成功的故障数达到零，电路返回到第一个状态寻找任何同步代码。

2. 发明授权

US4446494A Uniform speed control for a multi-channel digital recorder 失效
标题翻译：多通道数字录像机的均匀速度控制
公开(公告)号：US4446494A
公开(公告)日：1984-05-01
申请号：US299838
申请日：1981-09-08
申请人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
发明人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
IPC分类号： G11B20/18 , G11B27/30 , G11B15/46
CPC分类号： G11B20/1803 , G11B27/3027
摘要： The present invention includes an arrangement for averaging the content of first-in-first-out buffers of each track of a multi-channel digital tape recorder for controlling tape speed to enable a smooth over-dubbing of information recorded at different times on separate tracks.
摘要翻译：本发明包括一种用于对多声道数字磁带录音机的每个音轨的先进先出缓冲器的内容进行平均的装置，用于控制磁带速度，以便能够在分开的轨道上在不同时间记录的信息的平滑过度配音。

3. 发明授权

US4328580A Apparatus and an improved method for processing of digital information 失效
标题翻译：装置和改进的数字信息处理方法
公开(公告)号：US4328580A
公开(公告)日：1982-05-04
申请号：US55689
申请日：1979-07-06
申请人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
发明人： Thomas G. Stockham, Jr. , Bruce C. Rothaar
IPC分类号： G06F11/08 , G11B5/09 , G11B20/18 , G11B27/30 , H04L1/22 , G06F11/20
CPC分类号： G11B27/3027 , G11B20/1803
摘要： The present invention involves an apparatus and method for processing of digital information that includes duplication of information from each channel of a multi-channel recorder on main and backup tracks and provides a combination of error detection apparatus and procedures where data groupings or words on each track are individually subject to four separate tests for detecting errors and provides, from that analysis, for a selection of most likely correct data for further processing. Additionally, further system reliability is obtained by providing circuitry whereby a detected error activates a selection of data groupings coming before and after the detected error, providing where appropriate, for switching from main to backup track data over a certain number of data groupings. The present invention further provides a unique synchronization coding format with circuitry and a procedure for its use for rapidly acquiring synchronization coding in a data flow and includes an arrangement for averaging the content of first-in-first-out buffers of each track for controlling tape speed to enable a smooth over-dubbing of information recorded at different times on separate tracks.
摘要翻译：本发明涉及一种用于处理数字信息的装置和方法，其包括在主和备用磁道上的多通道记录器的每个通道的信息复制，并提供错误检测装置和程序的组合，其中每个轨道上的数据分组或单词分别经过四个单独的测试，用于检测错误，并从该分析中提供了用于进一步处理的最可能的正确数据的选择。此外，通过提供电路可以获得进一步的系统可靠性，由此检测到的错误激活在检测到的错误之前和之后的数据分组的选择，在适当的情况下，通过一定数量的数据分组从主要备份轨迹数据切换。本发明还提供了一种独特的同步编码格式，其具有电路和程序，用于在数据流中快速获取同步编码，并且包括用于平均每个轨道的先进先出缓冲器的内容以便控制磁带的装置以便在不同的轨道上平滑地重写在不同时间记录的信息。

4. 发明申请

US20100073748A1 Scanning Mirror Control 有权
标题翻译：扫描镜像控制
公开(公告)号：US20100073748A1
公开(公告)日：2010-03-25
申请号：US12235500
申请日：2008-09-22
申请人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
发明人： Steve Holmes , Clint Charles Rollins , Margaret K. Brown , Michael L. Schaaf , Bruce C. Rothaar , Robert J. Jackson , Lifford McLauchlan , Mehrube Mehrubeoglu , Gregory Schneider
IPC分类号： G02B26/10
CPC分类号： G02B26/121 , G05B13/024 , H02K41/0354 , H02P29/50
摘要： A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the slow-scan axis is controlled by a slow-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. An outer loop of the control system operates in the frequency domain and determines harmonic drive coefficients for a scanning mirror drive signal. An inner loop of the control system operates in the time domain and compensates for a scanning mirror resonant vibration mode at a frequency within the frequency band occupied by the harmonic drive coefficients.
摘要翻译：扫描光束投影系统包括具有快速扫描轴和慢扫描轴的扫描镜。慢扫描轴上的移动由慢扫描扫描镜控制系统控制。控制系统接收描述镜的角位移的位置信息。控制系统的外环在频域中工作，并确定扫描镜驱动信号的谐波驱动系数。控制系统的内部环路在时域中工作，并且以谐波驱动系数占据的频带内的频率补偿扫描镜共振振动模式。

5. 发明授权

US08605764B1 Laser diode junction temperature compensation 有权
标题翻译：激光二极管结温补偿
公开(公告)号：US08605764B1
公开(公告)日：2013-12-10
申请号：US13544556
申请日：2012-07-09
申请人： Bruce C. Rothaar , Dale Eugene Zimmerman , Joel Sandgathe
发明人： Bruce C. Rothaar , Dale Eugene Zimmerman , Joel Sandgathe
IPC分类号： H01S3/00
CPC分类号： G03B21/2033 , G02B26/10 , G02B27/01 , G03B21/2053 , H01S5/0014 , H01S5/0021 , H01S5/0427 , H01S5/0617 , H01S5/06213 , H01S5/06804 , H01S5/06812 , H01S5/4093 , H04N9/3129 , H04N9/3194
摘要： A projection apparatus includes at least one laser diode and a laser diode junction temperature estimator to estimate the junction temperature of the at least one laser diode. Laser diode current drive values are modified in response to the estimated laser junction temperature. The modification of laser diode current drive values may occur as frequently as once per pixel.
摘要翻译：投影装置包括至少一个激光二极管和激光二极管结温度估计器，以估计至少一个激光二极管的结温。激光二极管电流驱动值根据估计的激光器结温度进行修改。激光二极管电流驱动值的修改可能像每个像素一样频繁出现。

6. 发明申请

US20130050156A1 Sinusoidal Laser Scanner with Optical Filter 有权
标题翻译：带光学滤波器的正弦激光扫描仪
公开(公告)号：US20130050156A1
公开(公告)日：2013-02-28
申请号：US13222199
申请日：2011-08-31
申请人： Bruce C. Rothaar
发明人： Bruce C. Rothaar
IPC分类号： G09G5/00 , G02B26/10
CPC分类号： G02B26/101 , G02B27/0101 , G02B27/0172 , G09G3/025 , G09G2320/0233
摘要： A scanning projector includes an optical filter. The optical filter exhibits a variable attenuation as a function of position. The scanning projector may scan sinusoidally in at least one dimension. The variable attenuation of the optical filter compensates for brightness variations due to sinusoidal scanning.
摘要翻译：扫描投影仪包括滤光器。滤光器表现出作为位置的函数的可变衰减。扫描投影仪可以至少在一个维度上正弦扫描。光学滤波器的可变衰减补偿了正弦扫描引起的亮度变化。

7. 发明授权

US08173947B2 Scanning mirror position determination 有权
标题翻译：扫描镜位置确定
公开(公告)号：US08173947B2
公开(公告)日：2012-05-08
申请号：US12556419
申请日：2009-09-09
申请人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
发明人： Mark Champion , Steve Holmes , Lakhbir Singh Gandhi , Harpal Singh Sira , Bruce C. Rothaar
IPC分类号： H01J40/14
CPC分类号： H04N3/08 , G02B26/108 , H04N9/3129
摘要： A scanning projector includes a mirror that scans in two dimensions, at least one of which is sinusoidal. A position sensor provides a position signal that represents an angular displacement of the mirror. The position signal is amplified by an amplifier with time variant characteristics. A beam position determination component compensates for the time variant characteristics of the amplifier.
摘要翻译：扫描投影仪包括以二维扫描的反射镜，其中至少一个是正弦曲线。位置传感器提供表示反射镜的角位移的位置信号。位置信号由具有时变特性的放大器放大。波束位置确定部件补偿放大器的时变特性。

8. 发明授权

US07369484B1 System and method for mitigating data flow control problems in the presence of certain interference parameters 有权
标题翻译：在存在某些干扰参数的情况下减轻数据流控制问题的系统和方法
公开(公告)号：US07369484B1
公开(公告)日：2008-05-06
申请号：US09843621
申请日：2001-04-26
申请人： Jerry Prismantas , Randy Karr , Bruce C. Rothaar , Jean-Francois Grenon , Heinz Lycklama a'Nyeholt
发明人： Jerry Prismantas , Randy Karr , Bruce C. Rothaar , Jean-Francois Grenon , Heinz Lycklama a'Nyeholt
IPC分类号： H04J1/12
CPC分类号： H04L1/0006 , H04B1/1027 , H04K3/822 , H04K2203/18
摘要： A radar, or other repetitive interference, detection and data flow control system and method for RF data transmissions uses an RF detector and an omni directional antenna to detect radar or similar signals. The information from the RF detector is communicated to a hub data transmission unit which processes the data about the signal provided by the detector. This information is used by the hub to schedule communications between the hub and subscriber units so that none of the communications between the hub and subscriber fall within the time period of the interfering pulses. Although there are no communications during the time periods of the pulses, the efficiency of communications is improved because collisions and retransmission of data are avoided.
摘要翻译：用于RF数据传输的雷达或其他重复干扰，检测和数据流控制系统和方法使用RF检测器和全向天线来检测雷达或类似信号。来自RF检测器的信息被传送到集线器数据传输单元，其处理关于由检测器提供的信号的数据。集线器使用该信息来调度集线器和用户单元之间的通信，使得集线器和订户之间的任何通信都不会落入干扰脉冲的时间段内。虽然在脉冲的时间段内没有通信，但是通过避免数据的冲突和重发，提高通信效率。

9. 发明授权

US08861058B2 Scanning projector with non-rectangular display 有权
标题翻译：用非矩形显示器扫描投影机
公开(公告)号：US08861058B2
公开(公告)日：2014-10-14
申请号：US13295841
申请日：2011-11-14
申请人： Bruce C. Rothaar , Joel Sandgathe
发明人： Bruce C. Rothaar , Joel Sandgathe
IPC分类号： G02B26/10 , H04N9/31 , G02B26/08 , G02B27/01
CPC分类号： H04N9/3135 , G02B26/085 , G02B27/017 , H04N9/3185
摘要： A scanning beam projection system includes a scanning mirror having a fast-scan axis and a slow-scan axis. Movement on the fast-scan axis is controlled by a fast-scan scanning mirror control system. The control system receives position information describing angular displacement of the mirror. A fast-scan drive signal is generated that causes the scanning mirror to oscillate at a resonant frequency with a varying amplitude.
摘要翻译：扫描光束投影系统包括具有快速扫描轴和慢扫描轴的扫描镜。快速扫描轴上的移动由快速扫描扫描镜控制系统控制。控制系统接收描述镜的角位移的位置信息。产生快扫描驱动信号，使得扫描镜以振幅变化的谐振频率振荡。

10. 发明授权

US08755395B2 Wireless communication subsystem with a digital interface 有权
标题翻译：无线通信子系统具有数字接口
公开(公告)号：US08755395B2
公开(公告)日：2014-06-17
申请号：US12830815
申请日：2010-07-06
申请人： David Prager , Bruce C. Rothaar , Heinz Lycklama A'nyeholt , Dave Randall
发明人： David Prager , Bruce C. Rothaar , Heinz Lycklama A'nyeholt , Dave Randall
IPC分类号： H04L12/56
CPC分类号： H04J14/0227 , F24F11/30 , F24F11/54 , H04B1/38 , H04L49/351
摘要： Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.
摘要翻译：公开了提供实现适于灵活部署配置的子系统并且抵抗引入干扰的无线通信系统的系统和方法。本发明的优选实施例提供一种无线通信系统配置，其中ODU子系统使用光纤链路耦合到IDU子系统。根据本发明的优选实施例，ODU子系统适于提供数字和模拟之间的转换，从而有助于使用ODU子系统和对应的IDU子系统之间的数字链路。本发明的实施例利用根据本发明配置的多个ODU子系统来提供服务区域的无线通信覆盖，例如提供无线应用终端系统（WATS）集线器，用于提供无线通信链路相对于多个用户单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式