公开(公告)号：EP1138013A1

公开(公告)日：2001-10-04

申请号：EP99951493.8

申请日：1999-09-16

申请人： Metrologic Instruments, Inc.

发明人： AU, Ka, Man ,  ZHU, Xiaoxun

IPC分类号： G06K9/36

CPC分类号： G06K7/1456 ,  G06K7/14

摘要： Run length encoded data derived from a raster scanner (30) at an arbitrary angle to the horizontal direction of a rectilinear symbol (25) such as a two-dimensional PDF code is examined to detect the skew angle between the horizontal direction (Xs) of the symbol (25) and horizontal direction (Xr1) of the raster (36). Using the detected skew angle, a computer (70) generates a set of virtual scan lines overlaid on the real scan lines. The computer (70) partitions the virtual scan lines and the real scan lines into associated real and virtual line segments having common intersection points. The locations of mark to space or space to mark transitions are mapped from the real line segments onto the virtual line segments. The system can handle run length encoded data with low computational overhead.

摘要翻译： 检查从诸如二维PDF码的直线符号（25）的水平方向以任意角度从光栅扫描器（30）导出的游程编码数据，以检测水平方向（Xs）与 栅格（36）的符号（25）和水平方向（Xr1）。 使用检测到的偏斜角度，计算机（70）产生覆盖在实际扫描线上的一组虚拟扫描线。 计算机（70）将虚拟扫描线和实际扫描线划分为具有共同交点的相关实线和虚线线段。 标记到空间或标记转换的空间的位置从实线段映射到虚拟线段上。 该系统可以处理运行长度编码数据，并具有低计算开销。

公开(公告)号：EP1066587A1

公开(公告)日：2001-01-10

申请号：EP99914134.4

申请日：1999-03-24

申请人： Metrologic Instruments, Inc.

发明人： GOOD, Timothy, A. ,  ZHU, Xiaoxun ,  WILZ, David, M. ,  ROCKSTEIN, George, B. ,  COLAVITO, Stephen, J. ,  BLAKE, Robert, E. ,  AU, Ka, Man ,  GHOSH, Sankar ,  KOLIS, George ,  SCOTT, Ian, A. ,  AMUNDSEN, Thomas ,  GERMAINE, Gennady ,  DEHENNIS, Andrew, D. ,  DICKSON, Leroy ,  KNOWLES, Carl, Harry

IPC分类号： G06K7/10

CPC分类号： B82Y15/00

摘要： A fully automated package identification and measuring system, in which omni-directional laser scanning systems (10, 101, 107) are used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem (600) is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.

公开(公告)号：EP0950226A1

公开(公告)日：1999-10-20

申请号：EP97949559.0

申请日：1997-11-24

申请人： METROLOGIC INSTRUMENTS, INC.

发明人： RUSSELL, Garrett ,  WILZ, David, M., Sr. ,  KNOWLES, C. Harry

IPC分类号： G06F ,  G06K ,  G06K7 ,  G06F13 ,  G06F15 ,  G06F17 ,  G06K15 ,  G06K19 ,  G07F17

CPC分类号： G06F17/30879

摘要： A novel transaction method and system, wherein a transaction Java-Applet is embedded within an HTML-encoded document stored in an HTTP server at predetermined URL. When a code symbol (8) encoded with the URL is read using a code symbol reader (7, 7A) interfaced with a Java-enabled Internet terminal, the corresponding HTML document is automatically accessed and displayed at the terminal, and the transaction Java-Applet initiated for execution so that the customer, consumer or client desiring the transaction can simply and conveniently conduct the information-related transaction over the Internet. The transaction-enabling Internet terminal (3) can be in the form of an Internet kiosk installed in a public location, in the manner as conventional ATMs.

公开(公告)号：EP0871138A2

公开(公告)日：1998-10-14

申请号：EP98201375.7

申请日：1992-09-17

申请人： METROLOGIC INSTRUMENTS, INC.

发明人： Rockstein, George B. ,  Wilz, David M. Sr. ,  Blake, Robert E. ,  Knowles, Carl H.

IPC分类号： G06K7/10

CPC分类号： G06K7/10891 ,  G02B26/106 ,  G06K7/10 ,  G06K7/10564 ,  G06K7/10584 ,  G06K7/10594 ,  G06K7/10603 ,  G06K7/10663 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10702 ,  G06K7/10792 ,  G06K7/10801 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10861 ,  G06K7/10871 ,  G06K7/10881 ,  G06K7/109 ,  G06K7/14 ,  G06K7/1443 ,  G06K17/0022 ,  G06K2207/1012 ,  G06K2207/1016 ,  G06K2207/1017 ,  G06K2207/1018

摘要： Method and apparatus for automatically reading bar code symbols is disclosed. One aspect of the present invention concerns a method of reading bar code symbols using an automatic hand-holdable bar code symbol reading device. In general, the automatic bar code symbol reading device comprises a hand-holdable housing containing operative elements which provide an object detection field and a scan field each defined external to the housing. The method involves automatically detecting the presence of an object within the object detection field by sensing energy reflected off the object. In a preferred embodiment, the energy reflected off the object is IR radiation produced from an object sensing energy source disposed within the housing. In automatic response to the detection of the object within the object detection field, the hand-holdable device detects the presence of a bar code aligned by the user within the scan field using a laser beam produced within the housing. Then, in automatic response to the detection of a bar code in the scan field, the automatic hand-holdable bar code symbol reading device reads the detected bar code in the scan field by producing scan data signals from the detected bar code and thereafter collecting and analyzing the same. Another aspect of the present invention concerns a hand-holdable data collection device adapted for use with the automatic bar code symbol reading device to form a portable symbol reading system which is versatile and simple to use.

公开(公告)号：EP0715273A3

公开(公告)日：1996-07-24

申请号：EP95305748.6

申请日：1995-08-17

申请人： METROLOGIC INSTRUMENTS, INC.

发明人： Rockstein, George B. ,  Wilz, David M. ,  Colavito, Stephen J. ,  German, Gene ,  Knowles, Carl H.

IPC分类号： G06K7/10

CPC分类号： G06K7/10871 ,  G02B26/106 ,  G06K7/10 ,  G06K7/10564 ,  G06K7/10584 ,  G06K7/10594 ,  G06K7/10603 ,  G06K7/10663 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10702 ,  G06K7/10792 ,  G06K7/10801 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10861 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/109 ,  G06K7/14 ,  G06K7/1443 ,  G06K17/0022 ,  G06K2007/10534 ,  G06K2207/1012 ,  G06K2207/1016 ,  G06K2207/1017 ,  G06K2207/1018

摘要： Disclosed is a fully automatic bar code symbol reading system having at least one automatic (i.e., triggerless) portable bar code symbol reading device, and an associated base unit positioned within the data transmission range thereof without a physical wiring connection thereto. After each successful reading of a bar code symbol, the bar code symbol reading device automatically produces symbol character data representative of the decoded bar code symbol, synthesizes a group of data packets each containing the symbol character data, and then transmits the synthesized group of data packets to the base unit. Upon the successful receipt of one of the transmitted data packets and the recovery of symbol character data therefrom, the base unit generates an acoustical acknowledgement signal that is perceptible to the user of the bar code symbol reading device and indicates the transmitted symbol character data has been successfully received. In typical applications, a plurality of such bar code systems are used in physical proximity with each other, such as in conventional retail point-of-purchase (POS) environments. In accordance with the present invention, radio frequency(RF) carrier signals of the same frequency are used by each hand-supportable bar code symbol reading device to transmit groups of data packets to respective base units.

摘要翻译： 公开了一种全自动条形码符号读取系统，其具有至少一个自动（即，无触发）便携式条形码符号读取装置和位于其数据传输范围内的相关联的基本单元，而无需物理布线连接。 在每次成功读取条形码符号之后，条形码符号读取装置自动产生代表解码条形码符号的符号字符数据，合成一组包含符号字符数据的数据包，然后发送合成的数据组 数据包到基本单元。 在成功收到其中一个发送的数据包并从中恢复出符号字符数据后，基本单元产生一个声音确认信号，该信号对于条形码符号读取装置的用户是可感知的并且指示发送的符号字符数据已经被 成功收到。 在典型的应用中，例如在传统的零售点（POS）环境中，多个这样的条形码系统在物理上彼此接近使用。 根据本发明，每个手持式条形码符号读取装置使用相同频率的射频（RF）载波信号将数据分组传送到各个基本单元。

公开(公告)号：EP0456704B1

公开(公告)日：1994-06-08

申请号：EP90902732.8

申请日：1990-01-18

申请人： METROLOGIC INSTRUMENTS, INC.

发明人： KNOWLES, Carl, H.

IPC分类号： G06K7/10

CPC分类号： G06K7/10871 ,  A47F9/048 ,  G06K7/10693

摘要： A laser scanner system (20) for producing and projecting a multi-line scanning pattern (32) into a space (30) in which a bar code is to be brought. The system (20) includes plural modular laser scanners (100), each producing a line scan pattern, but mounted with respect to one another so that the pattern of each scanner is projected into the space (30) to conjoin to form the multi-line pattern (32). Each module (100) is arranged to receive light reflected off the object to convert that light into electrical output signals indicative of the bars and spaces of the code. The system also includes means (126) for decoding the output signals and for providing the decoded signals to some peripheral device, e.g., an electronic cash register or computer. In one embodiment the scanner is located adjacent a conveyor (24) carrying bar coded items (26) to form an automated check-out counter.

公开(公告)号：EP0319164A2

公开(公告)日：1989-06-07

申请号：EP88310804.5

申请日：1988-11-16

申请人： METROLOGIC INSTRUMENTS, INC.

发明人： Knowles, Carl Harry

IPC分类号： G06K7/10 ,  G06F15/21

CPC分类号： G06K7/10881 ,  G06K7/1098

摘要： A hand held laser scanner, for use in reading e.g U.P.C bar codes, comprises a housing (22) including a body portion (36) and a handle portion (38). A laser beam generator (62) together with its power supply form a replaceable unit (24) which is releasably mounted within the handle portion (38), so that the unit (24) may be easily replaced by unskilled personnel without damaging the optical components which are located within the body portion (38).

摘要翻译： 用于阅读例如U.P.C条形码的手持激光扫描器包括包括主体部分（36）和手柄部分（38）的壳体（22）。 激光束发生器（62）与其电源一起形成可释放地安装在手柄部分（38）内的可更换单元（24），使得单元（24）可以容易地被不熟练的人员替换，而不损坏光学部件 它们位于主体部分（38）内。