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1. 发明公开

EP2985720A3 METHOD AND APPARATUS FOR ONE-DIMENSIONAL SIGNAL EXTRACTION 无效
标题翻译：方法和设备维信号提取
公开(公告)号：EP2985720A3
公开(公告)日：2016-10-05
申请号：EP15183393.6
申请日：2012-12-20
申请人： Cognex Corporation
发明人： SILVER, William M. , BACHELDER, Ivan A.
IPC分类号： G06K9/50 , G06K7/14 , G06T11/20 , G06K9/00 , G06K9/18
CPC分类号： G06K9/18 , G06K7/00 , G06K7/10 , G06K7/10722 , G06K7/1413 , G06K7/1456 , G06K7/146 , G06K7/1478 , G06K9/00503 , G06K9/00973 , G06K9/46 , G06K9/50 , G06K9/62
摘要： Apparatus and system are disclosed for extracting a one-dimensional digital signal from a two-dimensional digital image along a projection line. Disclosed embodiments provide an image memory in which is stored the digital image, a working memory, a direct memory access controller, a table memory that holds a plurality of transfer templates, and a processor. The processor selects a transfer template from the table memory responsive to an orientation of the projection line, computes a customized set of transfer parameters from the selected transfer template and parameters of the projection line, transmits the transfer parameters to the direct memory access controller, commands the direct memory access controller to transfer data from the image memory to the working memory as specified by the transfer parameters, and computes the one-dimensional digital signal using at least a portion of the data transferred by the direct memory access controller into the working memory.

2. 发明授权

EP2767928B1 DEVICE AND METHOD FOR AUTOMATICALLY IDENTIFYING A QR CODE 有权
标题翻译：装置和方法用于自动识别QR码
公开(公告)号：EP2767928B1
公开(公告)日：2016-08-17
申请号：EP12839367.5
申请日：2012-10-09
申请人： Yewon Communication Co., Ltd.
发明人： BAE, So Woon , KIM, Byoung Sun , YANG, Sung Ho
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K9/623 , G06K7/10811 , G06K7/1417 , G06K7/1443 , G06K7/1465 , G06K7/1478

3. 发明授权

EP1864485B1 FOCUSING SYSTEM USING LIGHT SOURCE AND IMAGE SENSOR 有权
标题翻译：对焦系统与光源和图像传感器
公开(公告)号：EP1864485B1
公开(公告)日：2014-01-22
申请号：EP06738666.4
申请日：2006-03-17
申请人： MICROSCAN SYSTEMS INCORPORATED
发明人： BARNES, Danny, S. , MARKS, David, A. , LAM, Gordon, W.
IPC分类号： H04N5/232 , G02B7/08 , G02B7/32 , G03B13/36 , G06K7/14
CPC分类号： H04N5/23212 , G02B7/08 , G02B7/32 , G03B13/36 , G06K7/14 , G06K7/1469 , G06K7/1478 , G06K7/1486

4. 发明授权

EP2385695B1 Calibration process for a focusing system using a light source and an image sensor 有权
标题翻译：校准为具有光源和图像传感器的聚焦系统
公开(公告)号：EP2385695B1
公开(公告)日：2013-08-21
申请号：EP11176602.8
申请日：2006-03-17
申请人： MICROSCAN SYSTEMS INCORPORATED
发明人： Barnes, Danny S. , Marks, David A. , Lam, Gordon W.
IPC分类号： H04N5/232 , H04N5/335 , G06K7/14 , G06K7/10 , G02B7/08 , G02B7/32 , G03B13/36
CPC分类号： H04N5/23212 , G02B7/08 , G02B7/32 , G03B13/36 , G06K7/14 , G06K7/1469 , G06K7/1478 , G06K7/1486

5. 发明授权

EP1797521B1 THRESHOLD SIGNAL GENERATOR AND METHOD FOR DETERMINING A THRESHOLD FOR EDGE DETECTION BASED ON AN UNDIFFERENTIATED EQUALIZED SCAN LINE SIGNAL 有权转让
标题翻译： SCHWELLWERTSIGNALGENERATOR AND METHOD用于基于均衡未分化ABTASTLINIENSIGNALS ON边缘检测一个极限
公开(公告)号：EP1797521B1
公开(公告)日：2013-08-21
申请号：EP05802099.1
申请日：2005-09-29
申请人： Datalogic ADC, Inc.
发明人： OLMSTEAD, Bryan, L.
IPC分类号： G06K7/14 , G06K7/10
CPC分类号： G06K7/10851 , G06K7/1452 , G06K7/1478

6. 发明公开

EP2590108A1 DECODING METHOD AND DECODING PROCESSING DEVICE 失效
标题翻译：解码方法及解码处理装置
公开(公告)号：EP2590108A1
公开(公告)日：2013-05-08
申请号：EP11800799.6
申请日：2011-06-27
申请人： Optoelectronics Co., Ltd.
发明人： KIMURA Kazuto , TANAKA You
IPC分类号： G06K7/00 , G06K7/10
CPC分类号： G06K7/1478 , G06F17/10 , G06K7/10851 , G06K7/1486 , G06K9/52
摘要： In the decoding method, the photoelectric conversion is performed on the light reflected by a code image, a read signal indicating intensity of the reflected light is produced, and the produced read signal is differentiated to produce a derivative signal. On the assumption of this, the inflection points of intensity of the reflected light in the read signal are detected from the produced derivative signal and peak levels as shown in FIG. 9 , each of which is an extreme value of the intensity of the reflected light, the peak level corresponding to a width length between the detected inflection points, are detected. A difference between the detected peak levels is then obtained and threshold values ThB2, ThS2 for decoding the read signal are set from the obtained difference between the peak levels. This enables the read signal of the code image to be decoded even when the code image is spotted with a stain or its printing quality is inferior or even when the read signal is read in its defocus state.

7. 发明公开

EP1445725A2 Optical scanner 失效
标题翻译： Optischer Abtaster
公开(公告)号：EP1445725A2
公开(公告)日：2004-08-11
申请号：EP04075636.3
申请日：1996-05-31
申请人： SYMBOL TECHNOLOGIES, INC.
发明人： Goren, David , Bridgelall, Raj , Kuchenbrood, Harry , Serbin, Gary , Barkan, Edward , Shellhamer, Stephen , Pandolfo, Donna , Cipriani, Guy , Li, Yajun , Campanelli, Joseph , Katz, Joseph , McGlynn, Daniel
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K7/10544 , G06K7/14 , G06K7/1452 , G06K7/1478
摘要： An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (14).
The invention further relates to a method of reading an indicia where the electrical signal representative of the indicia is selectively sampled, the samples being analyzed to establish whether they will represent true data or noise, and signal collection, processing and sampling is then adjusted allowing more aggressive decoding techniques to be used. In another aspect, a non-linear edge strength digitizer is employed capable of decoding both poorly printed and high density bar codes. A matched filter for bar code symbol signals is also proposed; as there is no inherent synchronisation in the bar code signals, a peak or edge detector is used to trigger the system. An automatic deblurring signal processor also proposed wherein a first derivative of an input bar code signal is compared against a threshold range and, if no match is found, then parameters of the processor system are varied to increase the likelihood of a comparison being successful.
摘要翻译：提供了一种光学扫描系统，用于产生表示具有不同光反射度的标记的空间分布的信号，例如条形码（14）。本发明还涉及一种读取标记的方法，其中代表标记的电信号被选择性地采样，分析样本以确定它们是否将代表真实数据或噪声，信号采集，处理和采样是然后进行调整，允许使用更积极的解码技术。在另一方面，采用非线性边缘强度数字化仪能够解码打印不良和高密度条形码。还提出了用于条码符号信号的匹配滤波器; 由于条形码信号中没有固有的同步，所以使用峰值或边缘检测器来触发系统。还提出了一种自动去模糊信号处理器，其中将输入条形码信号的一阶导数与阈值范围进行比较，并且如果找不到匹配，则改变处理器系统的参数以增加比较成功的可能性。

8. 发明公开

EP1150240A2 Methods and apparatus for digitizing and processing of analog barcode signals 审中-公开
标题翻译：方法和处理装置和数字化的条形码的模拟信号
公开(公告)号：EP1150240A2
公开(公告)日：2001-10-31
申请号：EP01303171.1
申请日：2001-04-03
申请人： NCR INTERNATIONAL INC.
发明人： Tang, Hong , Mergenthaler, Barry Myron , Collins, Donald Alexander, Jr. , Fabian, Kenneth Joseph
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K7/14 , G06K7/1478
摘要： A system for digital barcode processing. A light reflected from a barcode is captured by a photodetector to produce a photocurrent. The photocurrent is converted to a voltage, amplified and filtered to produce a photovoltage. The photovoltage is differentiated to form a first derivative signal and the first derivative signal is converted to a digital first derivative signal and processed to identify logic transitions represented by the barcode. The processing system subjects the photosignal to Gaussian filtering and differentiates the digital first derivative signal to form a second derivative signal. The digital first derivative signal is compared against a positive and a negative threshold and the second derivative signal is examined to detect zero crossings. When a positive peak of the first derivative exceeds the positive threshold and the second derivative undergoes a negative zero crossing within a predetermined time before or after the positive peak exceeds the positive threshold, a negative logic transition is identified. When a negative peak of the first derivative exceeds the negative threshold and the second derivative undergoes a positive zero crossing within a predetermined time before or after the first derivative exceeds the negative threshold, a positive logic transition is identified.
摘要翻译：一种数字条形码处理系统。从条形码反射的光被光电检测器捕获，以产生光电流。的光电流转换为电压，放大和滤波，以产生光电压。光电压进行微分以形成第一导数信号和第一导数信号被转换成数字第一导数信号和处理以识别由条形码表示的逻辑转换。该处理系统的受试者的照片信号高斯滤波和区分数字第一导数信号以形成第二导数信号。数字一阶导数信号被针对正的和负阈值和第二导数信号进行检查以检测过零点进行比较。当第一衍生物的正峰值超过正阈值和第二导数变为下一个预定时间内的负过零之前或之后的正峰值超过正阈值，负逻辑转换被识别。当第一衍生物的负峰值超过负阈值和第二衍生下变为在预定时间内正的过零点之前或之后，在第一导数超过负阈值，正逻辑过渡被识别。

9. 发明公开

EP0615207A3 Stand-along fixture and converting operation of hand-held laser. 失效
标题翻译： Vorrichtung zumselbststätigenFesthalten und zur Betreibung eines tragbaren Laserersers。
公开(公告)号：EP0615207A3
公开(公告)日：1998-07-01
申请号：EP93119030
申请日：1993-11-25
申请人： SYMBOL TECHNOLOGIES INC
发明人： METLITSKY BORIS , DVORKIS PAUL , BARKAN EDWARD
IPC分类号： G06K7/00 , 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 , G06K7/1478 , G06K2207/1011 , G06K2207/1016 , G06K2207/1018
摘要： A trigger-operated or triggerless scanner reads symbols with a first scan pattern in a first intended position of hand-held use. Either scanner may be mounted on a stand-alone fixture wherein the first scan pattern is converted to a second, different scan pattern, again for reading indicia in a second intended position of workstation use. Various signal processing digitizing circuits for faithful digital reconstruction of the symbols are disclosed.
摘要翻译：触发操作或无触发扫描器以手持使用的第一预期位置中的第一扫描模式读取符号。扫描器可以安装在独立的固定装置上，其中第一扫描图案被转换成第二不同的扫描图案，再次用于在工作站使用的第二预期位置读取标记。公开了用于符号的忠实数字重建的各种信号处理数字化电路。

10. 发明公开

EP0402952A2 Scan pattern generators for bar code symbol readers 失效
标题翻译： Abtastmuster-GeneratorfürStrichkodesymbol-Abtaster。
公开(公告)号：EP0402952A2
公开(公告)日：1990-12-19
申请号：EP90111368.8
申请日：1990-06-15
申请人： SYMBOL TECHNOLOGIES, INC.
发明人： Krichever, Mark J. , Metlitsky, Boris
IPC分类号： G06K7/10
CPC分类号： G06K7/10881 , G06K7/10643 , G06K7/10693 , G06K7/109 , G06K7/1478
摘要： The scan pattern, scan direction of at least one scan line, the intensity of a light beam, and the scan rate are individually or collectively changeable in a scanner for reading bar code symbols.
摘要翻译：扫描图案，至少一条扫描线的扫描方向，光束的强度和扫描速率可以在用于读取条形码符号的扫描仪中单独或共同地改变。

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