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公开(公告)号：US20080042722A1
公开(公告)日：2008-02-21
申请号：US11504441
申请日：2006-08-15
申请人： Andrew W. Dornbusch
发明人： Andrew W. Dornbusch
IPC分类号： H03L5/00
CPC分类号： H03L7/0891 , H03K19/018514 , H03L7/0802 , H03L7/18
摘要： A level shifter (320) includes a first capacitor (510/612/712), a first resistor (524/626/734), a first switch (526/630/728), and a first current source (528/632/730). The first capacitor has a first terminal for receiving an input signal, and a second terminal coupled to a first output terminal. The first resistor has a first terminal coupled to a first reference voltage terminal, and a second terminal coupled to the first output terminal. The first switch has a first current conducting electrode coupled to the second terminal of the first resistor, a control electrode for receiving a complement of the input signal, and a second current conducting electrode. The current source has a first terminal coupled to the second current conducting electrode of the first switch, and a second terminal coupled to a second reference voltage terminal. The level shifter (320) may be coupled between a phase detector (310) and a charge pump (330) of a phase locked loop (300).
摘要翻译： 电平移位器（320）包括第一电容器（510/612/712），第一电阻器（524/626/734），第一开关（526/630/728）和第一电流源（528/632 / 730）。 第一电容器具有用于接收输入信号的第一端子和耦合到第一输出端子的第二端子。 第一电阻器具有耦合到第一参考电压端子的第一端子和耦合到第一输出端子的第二端子。 第一开关具有耦合到第一电阻器的第二端子的第一电流导电电极，用于接收输入信号的补码的控制电极和第二电流传导电极。 电流源具有耦合到第一开关的第二电流传导电极的第一端子和耦合到第二参考电压端子的第二端子。 电平移位器（320）可以耦合在锁相环（300）的相位检测器（310）和电荷泵（330）之间。
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公开(公告)号：US5110202A
公开(公告)日：1992-05-05
申请号：US636459
申请日：1990-12-31
CPC分类号： G01C15/002 , G01S1/70 , G01S5/16
摘要： A spatial positioning and measurement system provides three-dimensional position and/or measurement information of an object using one or more fixed referent station systems, and one or more portable position sensor systems. Each fixed station produces at least one primary laser beam which is rotated at a constant angular velocity about a vertical axis. The primary laser beam has a predetermined angle of divergence or angle of spread which is inclined at a predetermined angle from the vertical axis. Each fixed station also preferably includes at least one reflective surface for generating a secondary laser beam.The portable position sensor includes a light sensitive detector, computer, and a display. The light sensitive detector can be formed of at least one "axicon" which directs incoming light to a photosensitive detector. The photosensitive detector generates an electrical pulse when struck by crossing laser beam and sends this pulse to the computer. The computer time labels each received pulse, which corresponds to the time of a laser beam crossing the axicon.For any point which is crossed by the two laser beams, a horizontal angle can be determined from the time difference between the time of crossing of the primary and reflected laser beam. Once these horizontal angles are known for three fixed referent stations, the point of intersection of three planes, and thus the three dimensional position of the point, is determined. Q A C
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公开(公告)号：US07538596B2
公开(公告)日：2009-05-26
申请号：US10853473
申请日：2004-05-25
申请人： Andrew W. Dornbusch
发明人： Andrew W. Dornbusch
IPC分类号： G06F7/44
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D7/165 , H03D2200/0033 , H03D2200/0043
摘要： A mixer (114) includes an input amplifier (620) and a barrel shifter (640). The input amplifier (620) has an input for receiving an input signal, and first through fourth output terminals respectively providing first through fourth current signals. The barrel shifter (640) has first through fourth input terminals for respectively receiving the first through fourth current signals, first through fourth control terminals for respectively receiving first through fourth clock signals, and first through fourth output terminals for respectively providing positive and negative in-phase output signals and positive and negative quadrature output signals.
摘要翻译： 混频器（114）包括输入放大器（620）和桶形移位器（640）。 输入放大器（620）具有用于接收输入信号的输入端和分别提供第一至第四电流信号的第一至第四输出端子。 桶形移位器（640）具有用于分别接收第一至第四电流信号的第一至第四输入端，分别接收第一至第四时钟信号的第一至第四控制端以及分别提供正，负四通道信号的第一至第四输出端， 相位输出信号和正负正交输出信号。
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公开(公告)号：US07200373B2
公开(公告)日：2007-04-03
申请号：US10681604
申请日：2003-10-08
申请人： Andrew W. Dornbusch
发明人： Andrew W. Dornbusch
IPC分类号： H04B1/16
摘要： An antenna detection and diagnostic system and associated method, including current and voltage detection circuits, are disclosed for detecting antenna failure mechanisms for integrated radio receivers. Integrated current limit detection circuitry is disclosed that determines current levels drawn by a remotely mounted antenna and generates a drive signal that controls a current limiting pass transistor such that current flow through the transistor is reduced when the detected current level drawn antenna rises above a current limit level. Integrated current and voltage detection circuitry is disclosed that detects current and voltage levels drawn by a remotely mounted antenna and determines under-current, over-current, and over-voltage antenna error conditions. At least one antenna error output pin for the integrated radio receiver is then used provide an output signal indicative of antenna error conditions.
摘要翻译： 公开了一种用于检测集成无线电接收机的天线故障机制的天线检测和诊断系统及其相关方法，包括电流和电压检测电路。 公开了集成电流限制检测电路，其确定由远程安装的天线绘制的电流水平，并产生控制电流限制传递晶体管的驱动信号，使得当检测到的电平电平绘制天线升高到电流极限以上时，流过晶体管的电流减小 水平。 公开了集成的电流和电压检测电路，其检测由远程安装的天线绘制的电流和电压电平，并确定欠电流，过电流和过电压天线误差条件。 然后使用集成无线电接收机的至少一个天线错误输出引脚提供表示天线误差条件的输出信号。
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5.发明授权
公开(公告)号：US5461473A
公开(公告)日：1995-10-24
申请号：US123891
申请日：1993-09-20
CPC分类号： G01S17/89 , G01C15/002 , G01S1/70 , G01S5/16 , G01S7/4813
摘要： Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically, the laser transmitter includes a laser emitter, a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft, a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams, and reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams. The receiver unit preferably includes at least one optical receiver coupled to an extension member, a processing unit coupled to the optical receiver, and a receiver interface coupled to the processing unit.
摘要翻译： 公开了用于空间测量系统的改进的发射机和接收机单元，其在提供高可靠性的同时制造容易且便宜。 具体地，激光发射器包括激光发射器，耦合到激光发射器的轴承/马达组件，所述轴承/马达组件包括可旋转的中空心轴，由激光发射器产生的激光束穿过激光发射器通过，以及用于驱动主轴的马达 轴，连接到主轴的棱镜组件，其中棱镜组件将由激光发射器产生的激光束分成一对扇形激光束，以及用于将由棱镜组件产生的扇形激光束反射作为反向旋转的反射装置 扇形激光束。 接收器单元优选地包括耦合到扩展构件的至少一个光学接收器，耦合到光学接收器的处理单元以及耦合到处理单元的接收器接口。
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公开(公告)号：US08222721B2
公开(公告)日：2012-07-17
申请号：US10691212
申请日：2003-10-21
IPC分类号： H01L23/02
CPC分类号： H01L23/66 , H01L23/50 , H01L2924/0002 , H01L2924/00
摘要： An integrated circuit (500) includes a semiconductor substrate (400) and an integrated circuit package (530). The semiconductor substrate (400) has a first pair of bonding pads (442, 444) conducting a differential output signal thereon and adapted to be coupled to an input of a first external filter, and a second pair of bonding pads (452, 454) conducting a differential input signal thereon and adapted to be coupled to an output of said first external filter. The integrated circuit package (530) encapsulates the semiconductor substrate (400) and has first (452, 454) and second (552, 554) terminal pairs corresponding and coupled to the first (442, 444) and second (452, 454) pairs of bonding pads, respectively. The first (452, 454) and second (552, 554) terminal pairs are separated by a first predetermined distance is sufficient to maintain an input-to-output isolation therebetween of at least a first predetermined amount.
摘要翻译： 集成电路（500）包括半导体衬底（400）和集成电路封装（530）。 半导体衬底（400）具有在其上传导差分输出信号并适于耦合到第一外部滤波器的输入的第一对接合焊盘（442,444）和第二对接合焊盘（452,454） 在其上传导差分输入信号并适于耦合到所述第一外部滤波器的输出。 集成电路封装（530）封装半导体衬底（400）并且具有对应于第一（442,444）和第二（452,454）对的第一（452,454）和第二（552,554）端子对 的焊盘。 第一（452,454）和第二（552,554）端子对被隔开第一预定距离足以在其间保持至少第一预定量的输入到输出隔离。
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公开(公告)号：US07471134B2
公开(公告)日：2008-12-30
申请号：US10853444
申请日：2004-05-25
申请人： Andrew W. Dornbusch
发明人： Andrew W. Dornbusch
IPC分类号： H04B1/26
CPC分类号： H03K5/15013 , H03K5/135
摘要： A mixer (114) includes a phase clock generator (404), a latch (420), and a multiplier (118). The phase clock generator (404) provides a plurality of phase clock signals. The latch (420) is coupled to the phase clock generator (404) via a first plurality of conductors (410) and provides a plurality of resynchronized phase clock signals. The multiplier (118) is coupled to the latch (420) via a second plurality of conductors (430) and mixes an input signal using the plurality of resynchronized phase clock signals to provide a mixed output signal. The second plurality of conductors (430) is characterized as having a lower end-to-end impedance than an end-to-end impedance of the first plurality of conductors (410).
摘要翻译： 混频器（114）包括相位时钟发生器（404），锁存器（420）和乘法器（118）。 相位时钟发生器（404）提供多个相位时钟信号。 锁存器（420）经由第一多个导体（410）耦合到相位时钟发生器（404），并且提供多个重新同步的相位时钟信号。 乘法器（118）经由第二多个导体（430）耦合到锁存器（420），并且使用多个重新同步的相位时钟信号混合输入信号以提供混合输出信号。 第二多个导体（430）的特征在于具有比第一多个导体（410）的端对端阻抗更低的端对端阻抗。
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8.发明授权Integrated PM/FM modulator using direct digital frequency synthesis and method therefor 失效使用直接数字频率合成的集成PM / FM调制器及其方法公开(公告)号：US07224302B2
公开(公告)日：2007-05-29
申请号：US11209948
申请日：2005-08-23
申请人： Andrew W. Dornbusch
发明人： Andrew W. Dornbusch
IPC分类号： H03M3/00
CPC分类号： H04L27/12
摘要： A PM/FM modulator (100) includes an analog-to-digital converter (110) having an input terminal for receiving an analog input signal, and an output terminal, and a direct digital frequency synthesizer (120) having an input terminal coupled to the output terminal of the analog-to-digital converter, and an output terminal for providing a modulated output signal. In one form, an FM stereo modulator (200) includes a digital stereo modulator (210) and a direct digital frequency synthesizer (250). The digital stereo modulator (210) has a first input terminal for receiving a right analog input signal, a second input terminal for receiving a left analog input signal, and an output terminal for providing a digital signal having a stereo spectrum. The direct digital frequency synthesizer (250) has an input terminal coupled to the output terminal of the digital stereo modulator (210), and an output terminal for providing a modulated output signal.
摘要翻译： PM / FM调制器（100）包括具有用于接收模拟输入信号的输入端的模拟 - 数字转换器（110）和输出端，以及直接数字频率合成器（120），其具有耦合到 模拟 - 数字转换器的输出端子以及用于提供调制输出信号的输出端子。 在一种形式中，FM立体声调制器（200）包括数字立体声调制器（210）和直接数字频率合成器（250）。 数字立体声调制器（210）具有用于接收右模拟输入信号的第一输入端，用于接收左模拟输入信号的第二输入端和用于提供具有立体声频谱的数字信号的输出端。 直接数字频率合成器（250）具有耦合到数字立体声调制器（210）的输出端的输入端和用于提供调制输出信号的输出端。
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公开(公告)号：US5579102A
公开(公告)日：1996-11-26
申请号：US539379
申请日：1995-10-05
CPC分类号： G01C15/002 , G01S17/89 , G01S7/4813
摘要： Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically, the laser transmitter includes a laser emitter, a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft, a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams, and reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams. The receiver unit preferably includes at least one optical receiver coupled to an extension member, a processing unit coupled to the optical receiver, and a receiver interface coupled to the processing unit.
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10.发明授权公开(公告)号：US07675996B2
公开(公告)日：2010-03-09
申请号：US11194034
申请日：2005-07-29
CPC分类号： H03J1/0008 , H03D7/00 , H04B1/0007 , H04B1/28 , H04B15/04 , H04B2215/064 , H04B2215/065 , H04N5/4446 , H04N5/46 , H04N21/4263 , H04N21/4305
摘要： A receiver (1100) includes a direct digital frequency synthesizer (130), a mixer (105), and a clock source (1110, 1130). The direct digital frequency synthesizer has an input terminal for receiving a first clock signal at a first frequency, and an output terminal for providing a digital local oscillator signal synchronously with the first clock signal. The mixer (105) has a first input terminal for receiving a radio frequency (RF) signal, a second input terminal coupled to the output terminal of the direct digital frequency synthesizer (130), and an output terminal for providing an IF signal having a spectrum centered about a selectable one of a plurality of center frequencies. The clock source (1110, 1130) has an output terminal for providing the first clock signal without using a harmonic frequency that overlaps the spectrum for the plurality of center frequencies.
摘要翻译： 接收器（1100）包括直接数字频率合成器（130），混频器（105）和时钟源（1110,1130）。 直接数字频率合成器具有用于以第一频率接收第一时钟信号的输入端子和用于与第一时钟信号同步地提供数字本地振荡器信号的输出端子。 混频器（105）具有用于接收射频（RF）信号的第一输入端，耦合到直接数字频率合成器（130）的输出端的第二输入端，以及用于提供IF信号的输出端， 频谱以多个中心频率中的可选择的一个为中心。 时钟源（1110,1130）具有用于提供第一时钟信号的输出端，而不使用与多个中心频率的频谱重叠的谐波频率。
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