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61. 发明授权

US5914478A Scanning system and method of operation with intelligent automatic gain control 失效
标题翻译：具有智能自动增益控制的扫描系统和操作方法
公开(公告)号：US5914478A
公开(公告)日：1999-06-22
申请号：US787727
申请日：1997-01-24
申请人： Raj Bridgelall
发明人： Raj Bridgelall
IPC分类号： G06K7/10 , G06K7/12
CPC分类号： G06K7/10851
摘要： A bar code scanner and method of operation includes intelligent AGC to maintain a constant signal level while not delaying a decoder in identifying indicia when noise or specular reflection occurs during a scan period. A light detector receives light and generates an analog signal representative of the scanned indicia. The analog signal is provided to a pre-amplifier which provides a first output to a digital voltage controlled amplifier and a second output to an intelligent AGC circuit which controls the amplifier. The amplifier output is provided through filters to a decoder for detecting the indicia scanned by the light source. The intelligent AGC circuit includes a first path for determining the occurrence of a specular or glitch noise in the analog signal. A second path derives the overall signal strength using first derivative of the analog signal which is immune to low frequency noise and ambient light. By taking the mean and variance of the signal strength, a programmable processor is able to set the gain for the digital voltage control amplifier in the next scan. A short, predetermined time before a Start-Of-Scan signal, the processor calculates the signal strength. Since the signal strength does not change rapidly between scans, the gain of the next scan will be based on the signal scan. A fixed signal gain throughout the entire scan prevents gain modulation at frequencies lower than the time constant of the signal strength indicator, and is more tolerant to noise from ambient light and other low frequency noise sources.
摘要翻译：条形码扫描器和操作方法包括智能AGC以在扫描周期期间发生噪声或镜面反射时保持恒定的信号电平，同时不延迟解码器识别标记。光检测器接收光并产生表示扫描标记的模拟信号。模拟信号被提供给前置放大器，其向数字压控放大器提供第一输出，并将第二输出提供给控制放大器的智能AGC电路。放大器输出通过滤波器提供给解码器，用于检测由光源扫描的标记。智能AGC电路包括用于确定模拟信号中的镜面或毛刺噪声的出现的第一路径。第二路径使用免受低频噪声和环境光的模拟信号的一阶导数来导出整体信号强度。通过获取信号强度的均值和方差，可编程处理器能够在下一次扫描中设置数字电压控制放大器的增益。在扫描起始信号之前短暂的预定时间，处理器计算信号强度。由于信号强度在扫描之间不会快速变化，所以下一次扫描的增益将基于信号扫描。在整个扫描过程中固定的信号增益可以防止在低于信号强度指示器的时间常数的频率处的增益调制，并且更能承受来自环境光和其他低频噪声源的噪声。

62. 发明授权

US5907146A Scanning system and method of operation using wide band scanning elements for generating arbitrary rotatable multi-dimensional scanning patterns in portable or fixed scanning modes 失效
标题翻译：使用宽带扫描元件的扫描系统和操作方法，用于在便携式或固定扫描模式中产生任意可旋转的多维扫描图案
公开(公告)号：US5907146A
公开(公告)日：1999-05-25
申请号：US761686
申请日：1996-12-06
申请人： Raj Bridgelall , David Goren
发明人： Raj Bridgelall , David Goren
IPC分类号： G06K7/10
CPC分类号： G06K7/10851
摘要： A scanning system is capable of open or closed loop operation for generating arbitrary rotatable multi-dimension with frequency compensation of scanning element. The system includes at least two scan elements positioned substantially orthogonally to each other for generating the arbitrary rotatable multi-dimensional scanning patterns. A power supply is responsive to respective control signals from a set of drive waveforms as inputs to the at least two scan elements. A controller includes an information processing system to store in digital form the desired set of arbitrary rotatable multi-dimensional scan patterns. In a closed loop mode, the controller stores feedback parameters for each scan element with a particular rotational angle and a feedback value at a particular frequency. The controller uses a feedback signal from the scan elements to compute an error signal indicative of the difference in frequency response between the desired frequency response and the actual frequency response and the difference in phase between the scanning elements. The error signal adjusts the control signal provided to the power supply to conform the actual and desired frequency response of the scanning elements thereby substantially eliminating distortion in pattern generation. In an open loop mode, the scanning system is operated without a feedback signal, but the drive waveforms are regularly fine tuned in amplitude and phase to compensate for changes in frequency response due to temperature variations and aging of the scanning elements.
摘要翻译：扫描系统能够进行打开或闭环操作，以产生具有扫描元件的频率补偿的任意可旋转多维度。该系统包括至少两个基本上彼此垂直定位的扫描元件，用于产生任意可旋转的多维扫描图案。电源响应于来自一组驱动波形的各个控制信号作为至少两个扫描元件的输入。控制器包括以数字形式存储所需的任意可旋转多维扫描图案集合的信息处理系统。在闭环模式中，控制器存储具有特定旋转角度的每个扫描元件的反馈参数和特定频率的反馈值。控制器使用来自扫描元件的反馈信号来计算指示期望频率响应和实际频率响应之间的频率响应差异以及扫描元件之间的相位差的误差信号。误差信号调节提供给电源的控制信号，以符合扫描元件的实际和期望的频率响应，从而基本上消除了图案生成中的失真。在开环模式下，扫描系统在没有反馈信号的情况下运行，但是驱动波形在幅度和相位上定期微调，以补偿由于扫描元件的温度变化和老化引起的频率响应的变化。

63. 发明授权

US5861615A Palm scanner 失效
公开(公告)号：US5861615A
公开(公告)日：1999-01-19
申请号：US595162
申请日：1996-02-01
申请人： Raj Bridgelall , Joseph Katz , David P. Goren , Paul Dvorkis , Yajun Li
发明人： Raj Bridgelall , Joseph Katz , David P. Goren , Paul Dvorkis , Yajun Li
IPC分类号： G06K7/10
CPC分类号： G06K7/10871 , G06K7/10564 , G06K7/10584 , G06K7/10633 , G06K7/10643 , G06K7/10653 , G06K7/10673 , G06K7/10693 , G06K7/10811 , G06K7/10851 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/1098 , G06K7/1478 , G06K2007/10534 , G06K2207/1011 , G06K2207/1013 , G06K2207/1016 , G06K2207/1018
摘要： A hand-held optical reader for reading printed indicia on a remote target includes a light source for generating a scanning light beam and a detector for detecting the light reflected from the printed indicia. The light source and detector are housed within a housing having a window through which the light beam passes from the source to the target for reflection from the target to the detector. The housing includes parallel front and rear faces, each being generally rectangular in shape and having a lower portion and upper portion. The front and rear faces are joined by a substantially planar base face at their lower edges. The window is disposed in the front face with the reader being ergonomically configured so as be comfortably held in the hand of a user, with the user's palm adjacent the rear face to enable the user to direct the scanning light beam at a remote target.

64. 发明授权

US5821521A Optical scanning assembly with flexible diaphragm 失效
标题翻译：具有柔性隔膜的光学扫描装置
公开(公告)号：US5821521A
公开(公告)日：1998-10-13
申请号：US933872
申请日：1997-09-19
申请人： Raj Bridgelall , Joseph Katz , David P. Goren , Paul Dvorkis , Yajun Li
发明人： Raj Bridgelall , Joseph Katz , David P. Goren , Paul Dvorkis , Yajun Li
IPC分类号： G06K7/10
CPC分类号： G06K7/10564 , G06K7/10584 , G06K7/10633 , G06K7/10643 , G06K7/10653 , G06K7/10673 , G06K7/10693 , G06K7/10811 , G06K7/10851 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/1098 , G06K7/1478 , G06K2007/10534 , G06K2207/1011 , G06K2207/1013 , G06K2207/1016 , G06K2207/1018
摘要： Optical scanning is established by superimposing the alternating magnetic field of a coil magnet with the permanent field set up by a permanent magnet which surrounds the coil magnet. Both magnets are fixedly secured to a support at one axial end of the magnets and a flexible diaphragm is secured to the other axial end of the permanent magnet. A scanning mirror is effectively attached between the support and the diaphragm. When the coil magnet is activated, the diaphragm is rapidly flexed which causes the movement of the scanning mirror.
摘要翻译：通过将线圈磁体的交变磁场与由围绕线圈磁体的永久磁铁构成的永久场重叠来建立光学扫描。两个磁体都牢固地固定在磁体的一个轴向端部处的支撑件上，并且柔性隔膜被固定到永磁体的另一轴向端。扫描镜被有效地安装在支架和隔膜之间。当线圈磁体被激活时，膜片快速弯曲，这导致扫描镜的移动。

65. 发明授权

US07873386B2 Dual mode wireless data communications 有权
标题翻译：双模无线数据通信
公开(公告)号：US07873386B2
公开(公告)日：2011-01-18
申请号：US12054041
申请日：2008-03-24
申请人： Raj Bridgelall
发明人： Raj Bridgelall
IPC分类号： H04M1/00
CPC分类号： H04W72/02 , H04L29/06 , H04L69/18 , H04M1/7253 , H04W16/00 , H04W84/12 , H04W84/18 , H04W88/04 , H04W88/06
摘要： A dual mode mobile unit is arranged to communicate in either a first or second data communications standard, such as combined Bluetooth and 802.11 operation. An interface unit converts received Bluetooth or 802.11 format signals into 802.11 frame format data signals to be provided to a digital signal processor which is programmed to process signals in either standard. The dual mode mobile unit can operate in the 802.11 standard to reserve a time interval for Bluetooth activity during which other 802.11 units will avoid transmissions to avoid interference.
摘要翻译：双模式移动单元布置成以第一或第二数据通信标准进行通信，例如组合的蓝牙和802.11操作。接口单元将接收到的蓝牙或802.11格式信号转换成802.11帧格式数据信号，以提供给数字信号处理器，该数字信号处理器被编程以处理任一标准中的信号。双模式移动单元可以在802.11标准中运行以保留蓝牙活动的时间间隔，在此期间，其他802.11单元将避免传输以避免干扰。

66. 发明授权

US07385476B2 Method and system for communicating data to a wireless access point 有权
标题翻译：用于将数据传送到无线接入点的方法和系统
公开(公告)号：US07385476B2
公开(公告)日：2008-06-10
申请号：US10799064
申请日：2004-03-11
申请人： Raj Bridgelall
发明人： Raj Bridgelall
IPC分类号： H04Q7/24 , H04L12/28
CPC分类号： H04W48/18 , H04W88/10
摘要： A system for communicating data through a network is disclosed. The system includes at least one access point and at least one mobile unit. The access point includes an access point processor, a wireless transceiver and an RFID transceiver. The wireless transceiver is coupled to the access point processor and the wireless transceiver is configured to receive and transmit data to a wireless device in the wireless local area network. The RFID transceiver is coupled to the access point processor and the RFID transceiver is configured to receive data from at least one mobile unit in the wireless local area network when the wireless transceiver is unavailable. The mobile unit includes a mobile unit processor, a mobile unit wireless transceiver and a mobile unit RFID transceiver. The mobile unit wireless transceiver is coupled to the mobile unit processor and the mobile unit wireless transceiver is configured to receive and transmit data to the access point. The mobile RFID transceiver is coupled to the mobile unit processor and the mobile unit processor is configured to send data to the RFID transceiver of the access point when the wireless transceiver of the access point is unavailable.
摘要翻译：公开了一种通过网络传送数据的系统。该系统包括至少一个接入点和至少一个移动单元。接入点包括接入点处理器，无线收发器和RFID收发器。无线收发器耦合到接入点处理器，并且无线收发器被配置为接收和发送数据到无线局域网中的无线设备。 RFID收发器耦合到接入点处理器，并且RFID收发器被配置为当无线收发器不可用时从无线局域网中的至少一个移动单元接收数据。移动单元包括移动单元处理器，移动单元无线收发器和移动单元RFID收发器。移动单元无线收发器耦合到移动单元处理器，并且移动单元无线收发器被配置为接收和发送数据到接入点。移动RFID收发器耦合到移动单元处理器，并且移动单元处理器被配置为当接入点的无线收发器不可用时，向接入点的RFID收发器发送数据。

67. 发明申请

US20070263109A1 Imager integrated CMOS circuit chip and associated optical code reading systems 审中-公开
标题翻译： Imager集成了CMOS电路芯片和相关的光学代码读取系统
公开(公告)号：US20070263109A1
公开(公告)日：2007-11-15
申请号：US11879051
申请日：2007-07-16
申请人： Bradley Carlson , Raj Bridgelall
发明人： Bradley Carlson , Raj Bridgelall
IPC分类号： H04N5/30
CPC分类号： G06K19/0723 , G06K7/10722
摘要： Monolithic circuit chips are disclosed which are particularly adapted for use with barcode reading, video and photographic systems. The monolithic circuit chip can include a sensor array, digitizer and decoder. The monolithic circuit chip can alternatively include an imager circuit, radio frequency circuit and memory. The memory can be one of ferroelectric random access memory (FRAM), E2PROM, or Flash memory. The monolithic circuit chip can be formed using complementary metal oxide semiconductor (CMOS) techniques.
摘要翻译：公开了特别适用于条形码读取，视频和照相系统的单片电路芯片。单片电路芯片可以包括传感器阵列，数字转换器和解码器。单片电路芯片可以替代地包括成像器电路，射频电路和存储器。该存储器可以是铁电随机存取存储器（FRAM），E＆lt; 2＆gt; PROM或闪存存储器之一。单片电路芯片可以使用互补金属氧化物半导体（CMOS）技术形成。

68. 发明申请

US20070192315A1 Database search with RFID 审中-公开
标题翻译：使用RFID进行数据库搜索
公开(公告)号：US20070192315A1
公开(公告)日：2007-08-16
申请号：US11706046
申请日：2007-02-12
申请人： Paul S. Drzaic , Curtis L. Carrender , Raj Bridgelall , John Price
发明人： Paul S. Drzaic , Curtis L. Carrender , Raj Bridgelall , John Price
IPC分类号： G06F17/30
CPC分类号： G06F16/242 , G06F16/24575
摘要： Methods and apparatuses for extracting information from a database based on tag data are provided. One method includes interrogating a plurality of RFID tags coupled with objects within in an area to obtain tag data. The contextual environment of the area is determined based on the tag data. A search of a database relating to an item in the area is conducted. Relevance rankings of search results are adjusted based upon the determined contextual environment. Search results can be displayed in order of relevance rankings.
摘要翻译：提供了基于标签数据从数据库提取信息的方法和装置。一种方法包括询问与区域内的对象耦合的多个RFID标签以获得标签数据。该区域的上下文环境基于标签数据确定。进行与该区域中的项目有关的数据库的搜索。搜索结果的相关性排名根据确定的情境环境进行调整。搜索结果可以按照相关性排名的顺序显示。

69. 发明申请

US20050200456A1 Method and system for communicating data to a wireless access point 有权
标题翻译：用于将数据传送到无线接入点的方法和系统
公开(公告)号：US20050200456A1
公开(公告)日：2005-09-15
申请号：US10799064
申请日：2004-03-11
申请人： Raj Bridgelall
发明人： Raj Bridgelall
IPC分类号： H04L12/28 , H04M1/725 , H04W76/04 , H04W84/12 , H04W88/10 , H04Q7/24
CPC分类号： H04W48/18 , H04W88/10
摘要： A system for communicating data through a network is disclosed. The system includes at least one access point and at least one mobile unit. The access point includes an access point processor, a wireless transceiver and an RFID transceiver. The wireless transceiver is coupled to the access point processor and the wireless transceiver is configured to receive and transmit data to a wireless device in the wireless local area network. The RFID transceiver is coupled to the access point processor and the RFID transceiver is configured to receive data from at least one mobile unit in the wireless local area network when the wireless transceiver is unavailable. The mobile unit includes a mobile unit processor, a mobile unit wireless transceiver and a mobile unit RFID transceiver. The mobile unit wireless transceiver is coupled to the mobile unit processor and the mobile unit wireless transceiver is configured to receive and transmit data to the access point. The mobile RFID transceiver is coupled to the mobile unit processor and the mobile unit processor is configured to send data to the RFID transceiver of the access point when the wireless transceiver of the access point is unavailable.
摘要翻译：公开了一种通过网络传送数据的系统。该系统包括至少一个接入点和至少一个移动单元。接入点包括接入点处理器，无线收发器和RFID收发器。无线收发器耦合到接入点处理器，并且无线收发器被配置为接收和发送数据到无线局域网中的无线设备。 RFID收发器耦合到接入点处理器，并且RFID收发器被配置为当无线收发器不可用时从无线局域网中的至少一个移动单元接收数据。移动单元包括移动单元处理器，移动单元无线收发器和移动单元RFID收发器。移动单元无线收发器耦合到移动单元处理器，并且移动单元无线收发器被配置为接收和发送数据到接入点。移动RFID收发器耦合到移动单元处理器，并且移动单元处理器被配置为当接入点的无线收发器不可用时，向接入点的RFID收发器发送数据。

70. 发明申请

US20050190098A1 Object location system and method using RFID 有权
标题翻译：使用RFID的对象定位系统和方法
公开(公告)号：US20050190098A1
公开(公告)日：2005-09-01
申请号：US10791329
申请日：2004-03-01
申请人： Raj Bridgelall , Mark Duron , Martin Strzelczyk
发明人： Raj Bridgelall , Mark Duron , Martin Strzelczyk
IPC分类号： G01S13/32 , G01S13/34 , G01S13/87 , G01S13/08
CPC分类号： G01S13/32 , G01S13/346 , G01S13/46 , G01S13/878 , G01S2013/466
摘要： A system and method is provided for locating objects using RFID tags. The system and method uses an RFID reader and a distance calculator to efficiently and accurately determine the location of objects that include an RFID tag. The RFID reader transmits a plurality of signals to the RFID tag, with the plurality of signals having different fundamental frequencies. In response, the RFID tag backscatter modulates the plurality of transmitted signals to create a plurality of backscatter modulated signals. The RFID reader receives and demodulates the plurality of backscatter modulated signals. The distance calculator determines the phase of the plurality of backscatter modulated signals and determines a rate of change of the phase in the backscatter modulated signals with respect to the rate of change in the fundamental frequency of the transmitted signals and uses this information to calculate the distance to the RFID tag.
摘要翻译：提供了一种使用RFID标签定位物体的系统和方法。该系统和方法使用RFID读取器和距离计算器来有效和准确地确定包括RFID标签的对象的位置。 RFID读取器将多个信号发送到RFID标签，多个信号具有不同的基本频率。作为响应，RFID标签反向散射调制多个发射信号以产生多个反向散射调制信号。 RFID读取器接收并解调多个反向散射调制信号。距离计算器确定多个反向散射调制信号的相位，并且确定背向散射调制信号中的相位相对于发射信号的基频的变化率的变化率，并使用该信息来计算距离到RFID标签。

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