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1. 发明授权

US4569062A Interface circuit for interfacing between asynchronous data in start/stop format and synchronous data 失效
标题翻译：接口电路，用于以起始/停止格式和同步数据接口异步数据
公开(公告)号：US4569062A
公开(公告)日：1986-02-04
申请号：US625870
申请日：1984-06-28
申请人： Brian W. Dellande , Henry Wurzburg
发明人： Brian W. Dellande , Henry Wurzburg
IPC分类号： H04L5/24 , H04L25/38 , H04L7/04
CPC分类号： H04L5/24
摘要： A data interface circuit for interfacing between an asynchronous data source providing data in start/stop format and a synchronous data communication channel is provided. The data interface circuit has a transmit portion and a receive portion which function independently. Upon receipt of asynchronous data, the transmit portion strips start and stop bits from the data and transmits the data in data frames of variable length characterized by beginning and ending with synchronizing idle codes. The synchronizing idle codes are transmitted in the absence of data to maintain synchronization. A code circuit insures that a data word is never the same as the idle code. Similarly, upon receipt of synchronous data and idle codes, the receive portion stores the data and controllably adds start and stop bits. Data in start/stop format is asynchronously provided at an output of the receive portion.
摘要翻译：提供了一种数据接口电路，用于在提供起始/停止格式的数据的异步数据源与同步数据通信信道之间进行接口。数据接口电路具有独立地起作用的发送部分和接收部分。在接收到异步数据时，发送部分从数据中开始和停止比特，并且以同步空闲码的特征为开始和结束的可变长度的数据帧发送数据。在没有数据的情况下发送同步空闲代码以保持同步。代码电路确保数据字永远不会与空闲代码相同。类似地，在接收到同步数据和空闲代码时，接收部分存储数据并可控地添加开始和停止位。以接收部分的输出异步地提供起始/停止格式的数据。

2. 发明授权

US4458206A Circuit for synchronizing the demodulation of phase modulated transmission bursts 失效
标题翻译：用于同步相位调制传输脉冲串的解调的电路
公开(公告)号：US4458206A
公开(公告)日：1984-07-03
申请号：US332408
申请日：1981-12-21
申请人： Brian W. Dellande , Henry Wurzburg
发明人： Brian W. Dellande , Henry Wurzburg
IPC分类号： H04L27/22 , H04L1/20 , H04L7/10
CPC分类号： H04L7/10 , H04L1/20
摘要： An energy synchronized demodulator circuit is disclosed having a differential input to single ended converter coupled to a sync detect circuit which provides a detection signal in response to the modulated input signal. The detection signal is integrated over time, and a threshold detector provides an output when the detection signal exceeds a predetermined threshold level. A filter provides a constant level output signal indicative of the presence of valid data. Synchronized demodulation is provided by a correlation between phase or frequency in predetermined bit intervals of the detection signal. Synchronization is initiated by the initial burst of input signal energy received by the differential input.
摘要翻译：公开了一种能量同步解调器电路，其具有耦合到同步检测电路的单端转换器的差分输入，该同步检测电路响应于调制的输入信号提供检测信号。检测信号随时间积分，并且当检测信号超过预定阈值电平时，阈值检测器提供输出。滤波器提供表示存在有效数据的恒定电平输出信号。通过检测信号的预定位间隔中的相位或频率之间的相关性来提供同步解调。由差分输入接收的输入信号能量的初始脉冲串启动同步。

3. 发明授权

US4435824A Communication system having improved differential phase shift keying modulation 失效
标题翻译：具有改进的差分相移键控调制的通信系统
公开(公告)号：US4435824A
公开(公告)日：1984-03-06
申请号：US380322
申请日：1982-05-20
申请人： Brian W. Dellande , Henry Wurzburg
发明人： Brian W. Dellande , Henry Wurzburg
IPC分类号： H04L27/20 , H04L27/10 , H04L27/18
CPC分类号： H04L27/2014
摘要： A communication system which generates an output signal of a selected primary frequency having digital data bits serially modulated thereon by utilizing a hybrid differential phase shift keyed (DPSK) modulation is provided. The improved DPSK modulation is frequency modulation of a phase encoded signal. A controller controls frequency generator means which frequency shift the output signal between primary and secondary frequencies. The controller and frequency generator means provide a modulated output signal which is D.C. balanced bit by bit and has substantially reduced harmonic energy.
摘要翻译：提供了一种通过利用混合差分相移键控（DPSK）调制来产生其上串行调制的数字数据位的所选主频输出信号的通信系统。改进的DPSK调制是相位编码信号的频率调制。控制器控制频率发生器装置，其频率移动主频率和次频之间的输出信号。控制器和频率发生器装置提供一个调制的输出信号，该调制输出信号是逐点平衡的并且具有显着减少的谐波能量。

4. 发明授权

US07478191B2 Method for automatically switching USB peripherals between USB hosts 有权
标题翻译：在USB主机之间自动切换USB外设的方法
公开(公告)号：US07478191B2
公开(公告)日：2009-01-13
申请号：US11457389
申请日：2006-07-13
申请人： Henry Wurzburg , Steve Nelson , Mark Y. Fu , Hans Magnusson
发明人： Henry Wurzburg , Steve Nelson , Mark Y. Fu , Hans Magnusson
IPC分类号： G06F13/00
CPC分类号： G06F13/4022
摘要： A system for automatically switching peripheral connectivity between two host devices based on respective connectivity of the hosts. The method may be used where peripherals are usually attached to one host and are automatically switched to a second host when the second host is attached to the system. A USB switching hub may be operable to automatically switch connectivity of the peripheral device(s) from the first host device to the second host device when the second host device is connected to the USB device. This automates the process for the end user when normally all peripherals are attached to one host, and some or all peripherals are shared with a second host when the second host is attached.
摘要翻译：一种用于基于主机的相应连接自动切换两台主机设备之间的外围连接的系统。当外围设备通常连接到一个主机时，该方法可以被使用，并且当第二主机连接到系统时，该方法被自动切换到第二主机。当第二主机设备连接到USB设备时，USB交换集线器可操作以自动地将外围设备的连接从第一主机设备切换到第二主机设备。当通常所有外围设备连接到一个主机时，这将自动完成最终用户的过程，并且当连接第二个主机时，一些或所有外围设备与第二个主机共享。

5. 发明授权

US07114019B2 System and method for data transmission 有权
公开(公告)号：US07114019B2
公开(公告)日：2006-09-26
申请号：US09949288
申请日：2001-09-07
申请人： Trenton B. Henry , Henry Wurzburg , Richard C. Counts , Christopher D. Sawran
发明人： Trenton B. Henry , Henry Wurzburg , Richard C. Counts , Christopher D. Sawran
IPC分类号： G06F13/00
CPC分类号： G06F13/385
摘要： An interface chip is disclosed. In one embodiment, an interface chip includes a processor coupled to an internal data bus and an internal address bus. A plurality of interfaces, including at least on serial interface and at least one parallel interface are also coupled to the processor via the internal address bus and the internal data bus. The interface chip also includes data movement circuitry, wherein the data movement circuitry is configured for transmitting data between a first of the plurality of interfaces and a second of the plurality of interfaces using time division multiplexing.

6. 发明申请

US20050156041A1 Systems and methods for power reduction in systems having removable media devices 有权
标题翻译：具有可移动介质设备的系统中功率降低的系统和方法
公开(公告)号：US20050156041A1
公开(公告)日：2005-07-21
申请号：US10762684
申请日：2004-01-20
申请人： Henry Wurzburg
发明人： Henry Wurzburg
IPC分类号： G06F1/32 , G06K7/00 , G06K17/00 , G06K7/06
CPC分类号： G06K19/07732 , G06K7/0013 , G06K7/0086 , G06K19/0701
摘要： In some embodiments, if a card in a card reader has not been accessed in a first specified amount of time, the card may be powered down. The card may be powered back up if an attempt is made to access the card. In some embodiments, if a memory card is in the memory card slot of the card reader, but has not been accessed in a second specified amount of time, the card reader may be electrically disconnected from the host controller if a sideband signal is available to signal the card reader when to electrically reconnect.
摘要翻译：在一些实施例中，如果读卡器中的卡在第一指定的时间量内未被访问，则该卡可以断电。如果尝试访问该卡，该卡可能会重新启动。在一些实施例中，如果存储卡位于读卡器的存储卡插槽中，但是在第二规定时间内未被访问，则如果边带信号可用于读卡器，则读卡器可能与主机控制器电断开在读卡器电连接时发出信号。

7. 发明授权

US5197147A Keycode translation system for producing translated keycode signals responsive to keyboard signals which act as a pointer to keycode translation table 失效
标题翻译：用于产生响应于键盘信号的转换的键码信号的键码翻译系统，其作为指向键码转换表的指针
公开(公告)号：US5197147A
公开(公告)日：1993-03-23
申请号：US474917
申请日：1990-02-05
申请人： Marty L. Long , Henry Wurzburg
发明人： Marty L. Long , Henry Wurzburg
IPC分类号： G06F15/02
CPC分类号： G06F15/02
摘要： A keycode translation system is disclosed in the form of a hardware system for providing translation between the keycode sent to the keyboard controller of a computer, such as a personal computer, and the code sent from the keyboard controller to the CPU of the computer for processing. A control ROM is used to select translated keycode signals from a keycode look-up table under the control of a program counter and keycode signals from the keyboard. These translated signals then are supplied through an accumulator to the CPU of the computer.
摘要翻译：一种键盘翻译系统以硬件系统的形式被公开，用于提供发送到诸如个人计算机的计算机的键盘控制器的键码与从计算机发送到计算机CPU的代码之间的转换。控制ROM用于在程序计数器的控制下从键盘查找表中选择转换的键码信号，并从键盘选择键码信号。这些转换的信号然后通过累加器提供给计算机的CPU。

8. 发明授权

US4585951A Precision triangle waveform generator 失效
标题翻译：精密三角波形发生器
公开(公告)号：US4585951A
公开(公告)日：1986-04-29
申请号：US544670
申请日：1983-10-24
申请人： Henry Wurzburg
发明人： Henry Wurzburg
IPC分类号： H03K4/06 , H03K4/48
CPC分类号： H03K4/066
摘要： A triangle waveform generator having precise edges is provided. A switched voltage controlled current source portion is coupled to an integrator circuit for providing the triangular output waveform. A switched capacitor integrator portion accurately controls the switched current source portion in response to both a reference voltage and the output voltage.
摘要翻译：提供具有精确边缘的三角波形发生器。开关电压控制电流源部分耦合到积分器电路以提供三角形输出波形。开关电容积分器部分响应于参考电压和输出电压精确地控制开关电流源部分。

9. 发明授权

US4403195A Parasitic insensitive switched capacitor operational amplifier circuit 失效
标题翻译：寄生不敏感开关电容运算放大器电路
公开(公告)号：US4403195A
公开(公告)日：1983-09-06
申请号：US314818
申请日：1981-10-26
申请人： Henry Wurzburg
发明人： Henry Wurzburg
IPC分类号： H03F3/00 , H03F1/02
CPC分类号： H03F3/005
摘要： A switched capacitor operational amplifier circuit which has both AC and DC precision and which substantially eliminates parasitic capacitance effects is provided. The operational amplifier circuit utilizes compensated CMOS transmission gates and a structure which switches a parasitic diffusion capacitance between two points of equal voltage potential thereby preventing a charge transfer which would create an offset voltage error.
摘要翻译：提供了具有交流和直流精度并且基本上消除寄生电容效应的开关电容器运算放大器电路。运算放大器电路利用经补偿的CMOS传输门和在两个电压相等的电位之间切换寄生扩散电容的结构，从而防止产生偏移电压误差的电荷转移。

10. 发明授权

US07986962B2 Providing a high-speed connection between a memory medium of a mobile device and an external device 有权
标题翻译：在移动设备的存储介质和外部设备之间提供高速连接
公开(公告)号：US07986962B2
公开(公告)日：2011-07-26
申请号：US11941115
申请日：2007-11-16
申请人： Wayne Liang , Henry Wurzburg , Morgan H. Monks
发明人： Wayne Liang , Henry Wurzburg , Morgan H. Monks
IPC分类号： H04W88/02
CPC分类号： H04M1/72527
摘要： System and method for providing a high speed connection to a memory medium of a mobile device. The mobile device may be a mobile phone or other type of portable electronic device. The memory medium may be removable and/or may be flash memory, as desired. The mobile device may include a USB hub that provides a direct high speed connection between an external device and a memory medium of the mobile device. The USB hub may also provide a connection (possibly high speed) between the external device and the processor of the mobile device. The mobile device may also include a high speed connection between the processor of the mobile device and the memory medium.
摘要翻译：用于提供与移动设备的存储介质的高速连接的系统和方法。移动设备可以是移动电话或其他类型的便携式电子设备。根据需要，存储介质可以是可移除的和/或可以是闪存。移动设备可以包括提供移动设备的外部设备和存储介质之间的直接高速连接的USB集线器。 USB集线器还可以在外部设备和移动设备的处理器之间提供连接（可能是高速）。移动设备还可以包括移动设备的处理器与存储介质之间的高速连接。

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