公开(公告)号：WO1994014136A1

公开(公告)日：1994-06-23

申请号：PCT/US1993010852

申请日：1993-11-09

Applicant: PSC, INC.

Inventor： PSC, INC. ,  EASTMAN, Jay, M. ,  ZAVISLAN, James, M.

IPC: G06K07/10

CPC classification number: G06K7/10881 ,  G02B26/10 ,  G02B27/4227 ,  G06K7/10653 ,  G06K7/1098 ,  G06K2007/10524 ,  G06K2207/1013 ,  G06K2207/1016

Abstract: A miniature scan engine module for bar code reading and data collection systems utilizes a light source (44) and a light collector (42), which in one embodiment, are flexurally supported on a platform (62) which reciprocates (88) on pivots defined by flexures (96). The optical collector faces the bar code and pivots with the scanning beam source (a laser diode). A diffraction grating or Fresnel lens on the surface of the optical collector which faces the code directs the incoming light so that it propagates internally in a substrate within the body of the collector, i.e. in the optic itself and without air paths which require addition volume in the module, to a photodetector (68). The scan engine can be configured so that it occupies a volume of less than 1 cubic inch. A data collection system, in the form of a portable terminal, has a housing which provides a handle (12) and a receptacle (18) for a terminal unit (14) which is separable from the housing.

Abstract translation: 用于条形码读取和数据收集系统的微型扫描引擎模块使用光源（44）和光收集器（42），其在一个实施例中被弯曲地支撑在平台（62）上，所述平台在枢轴上往复运动（88） 通过弯曲（96）。 光收发器面对条形码并与扫描光束源（激光二极管）枢转。 面向代码的光收发器表面上的衍射光栅或菲涅尔透镜引导入射光，使得其在集电体的主体内的衬底内部传播，即在光学器件本身中，并且没有需要相加体积的空气路径 该模块连接到光电检测器（68）。 扫描引擎可以被配置为使其占据小于1立方英寸的体积。 便携式终端形式的数据采集系统具有壳体，其提供用于可与壳体分离的终端单元（14）的手柄（12）和插座（18）。

公开(公告)号：WO1995020798A1

公开(公告)日：1995-08-03

申请号：PCT/US1995000971

申请日：1995-01-31

Applicant: PSC, INC.

Inventor： PSC, INC. ,  WALTS, Robert, H. ,  MURPHY, Joseph, F.

IPC: G06K07/10

CPC classification number: G06K7/10881

Abstract: A handheld bar code scanning device (200) includes scanning circuitry (20) to conduct bar code scanning and a manually actuated trigger switch (D, Q1), connected to the scanning circuitry (20), to initiate bar code scanning.

Abstract translation: 手持式条形码扫描装置（200）包括连接到扫描电路（20）的扫描电路（20）以进行条形码扫描和手动触发开关（D，Q1），以启动条形码扫描。

公开(公告)号：WO1995011490A1

公开(公告)日：1995-04-27

申请号：PCT/US1994011738

申请日：1994-10-14

Applicant: PSC, INC.

Inventor： PSC, INC. ,  ZAVISLAN, James, M. ,  EASTMAN, Jay, M. ,  QUINN, Anna, M.

IPC: G06K07/10

CPC classification number: G06K7/10881 ,  G02B26/10 ,  G02B27/4227 ,  G06K7/10653 ,  G06K7/1098 ,  G06K2007/10524 ,  G06K2207/1013 ,  G06K2207/1016

Abstract: A miniature scan engine module (28) for bar code reading and data collection systems utilizes a light source (40) and a light collector (42) flexurally supported on a platform (54) which reciprocates on pivots defined by flexures (46 and 48). The light received from the code, as it is scanned, is collected along an optical collector (42) having surface area approximately equal to the surface area of one side of the scan engine. The optical collector (42) faces the bar code and pivots with the scanning beam source (40), a laser diode. A pair of diffraction gratings (66 and 67) along a surface of the optical collector (42) which faces away from the code directs the incoming light so that it propagates internally in a substrate (65) within the body of the collector in which the gratings (66 and 67) are embedded, i.e. in the optic itself to photodetectors (68 and 73) via reflective and light concentrating surfaces over the photodetector (68 and 73). Efficient light collection capability, without the need for special optics such as lenses and collection mirrors, enables the scan engine to be configured so that it occupies a miniature volume. A data collection system, in the form of a portable terminal, has a housing (12) which provides the handle for a scanning accessory which is the scan engine module.

Abstract translation: 用于条形码读取和数据收集系统的微型扫描引擎模块（28）利用弯曲地支撑在平台（54）上的光源（40）和光收集器（42），所述平台（54）在由挠曲件（46和48）限定的枢轴上往复运动， 。 从扫描的代码接收的光沿着具有大致等于扫描引擎的一侧的表面积的表面积的光学收集器（42）收集。 光收发器（42）面向条形码并与扫描光束源（40），激光二极管枢转。 沿着光学收集器（42）的远离码的表面的一对衍射光栅（66和67）引导入射光，使得其在集电体的主体内的衬底（65）内部传播，其中 通过光电检测器（68和73）上的反射和光聚集表面，嵌入光栅（66和67），即在光学器件本身到光电探测器（68和73）。 高效的光采集能力，不需要诸如镜头和收集镜的特殊光学元件，使得扫描引擎能够被配置成使其占据微小的体积。 以便携式终端的形式的数据收集系统具有壳体（12），其提供作为扫描引擎模块的扫描附件的手柄。

公开(公告)号：WO1997008647A1

公开(公告)日：1997-03-06

申请号：PCT/US1996013659

申请日：1996-08-23

Applicant: PSC, INC.

Inventor： PSC, INC. ,  OLMSTEAD, Bryan, L. ,  COLLEY, James, E.

IPC: G06K07/10

CPC classification number: G06K7/1093 ,  G06K7/10752 ,  H04N5/341 ,  H04N5/3745

Abstract: A CMOS optical or symbol reader chip (100) comprises a CMOS imaging array (102) having a plurality of pixels each with a dedicated pixel-site circuit. Charge is accumulated at each pixel location transferred upon demand to a common bus. The exposure time of the imaging array is controlled using a feedback loop. One or more exposure control pixels are positioned adjacent to or within the imaging array and receive light along with the imaging array. CMOS signal processing circuitry is employed which, in combination with the exposure control circuitry (450), minimizes time-to-read over a large range of light levels, while performing spatially optimal filtering. Clocking cycles (122) and control signals are time-adjusted in accordance with the varying output frequency of the imaging array so as to provide invariant frequency response by the signal processing circuitry (109).

Abstract translation: CMOS光学或符号读取器芯片（100）包括具有多个像素的CMOS成像阵列（102），每个像素具有专用像素位置电路。 在按要求传送的每个像素位置处累积电荷到公共总线。 使用反馈回路来控制成像阵列的曝光时间。 一个或多个曝光控制像素位于成像阵列附近或内部，并与成像阵列一起接收光。 采用CMOS信号处理电路，其结合曝光控制电路（450），在执行空间最佳滤波的同时，在大范围的光照水平上最小化读取时间。 时钟周期（122）和控制信号根据成像阵列的变化的输出频率进行时间调整，以便由信号处理电路（109）提供不变的频率响应。

公开(公告)号：WO1994019738A1

公开(公告)日：1994-09-01

申请号：PCT/US1994001903

申请日：1994-02-14

Applicant: PSC, INC.

Inventor： PSC, INC. ,  LA MANNA, Vincent, T. ,  EASTMAN, Jay, M.

IPC: G06F07/06

CPC classification number: G06K7/10881 ,  G06Q10/087

Abstract: A data entry terminal (10) which can be worn on a lapel (1) of one's clothing, and which is used to enter data into a remote data center. The data entry terminal (10) provides for acquisition of data derived from verbal pronouncement of code data into a microphone (19) which is coupled to a transmitter (66) through a speech recognition (62) and an analog-to-digital convertor (64). The lapel terminal (10) provides for acquisition of data derived from optical bar code patterns. Optical codes are read by an optical reader (50) whose signal output is also coupled to the transmitter (66). The lapel data entry terminal (10) may be removed from the lapel, activating the optical code reader. The wearer of the lapel terminal (10) can receive instructions from the remote data center through a radio receiver (76) which is coupled to a loudspeaker (21) through a digital-to-analog convertor (74) and a voice synthesizer (72). All components, including a rechargeable battery (36), are contained within a housing (11).

Abstract translation: 数据输入终端（10），可以穿在衣服的翻领（1）上，用于将数据输入到远程数据中心。 数据输入终端（10）提供从代码数据的口头声明获得的数据到通过语音识别（62）和模拟 - 数字转换器（62）耦合到发射器（66）的麦克风（19） 64）。 翻领终端（10）提供从光学条形码图案获得的数据的获取。 光学代码由光学读取器（50）读取，光学读取器（50）的信号输出也耦合到发射器（66）。 翻领数据输入终端（10）可以从翻领中移除，激活光学代码阅读器。 翻领终端（10）的佩戴者可以通过无线电接收器（76）接收来自远程数据中心的指令，该无线电接收器通过数模转换器（74）和语音合成器（72）耦合到扬声器（21） ）。 包括可充电电池（36）的所有组件都包含在壳体（11）内。

公开(公告)号：WO1997046856A1

公开(公告)日：1997-12-11

申请号：PCT/US1997009435

申请日：1997-06-03

Applicant: PSC, INC.

Inventor： PSC, INC. ,  CHERRY, Craig, D. ,  RANDO, Joseph, F. ,  McQUEEN, Alexander, M. ,  SCHLER, Matt, D. ,  LATIMER, David, L. ,  McMAHON, Steven, A. ,  TURKAL, Randy, J. ,  REDDERSEN, Brad, R.

IPC: G01J03/46

CPC classification number: G06K9/20 ,  G01G19/4144 ,  G01J3/50 ,  G01J3/501 ,  G01J3/502 ,  G01J3/51 ,  G06K9/00 ,  G06K9/00496 ,  G06K2209/17

Abstract: An object recognition system and method capable of identifying products (29) such as produce in a supermarket. A preferred object recognition system comprises a sensing apparatus for collecting light reflected from objects presented at a point of sale machine. The sensing apparatus includes a mechanism for separating the color components of the light reflected (32) from the unknown object (29) and directing the color components onto an optical detector (34). The color separator may incorporate a diffraction grating (72) or a holographic element (82). Alternatively it may incorporate a plurality of narrowband illumination sources (92-94) operating in a time sequential manner, each illuminating with a different wavelength band of light.

Abstract translation: 一种能够在超市中识别产品（29）如产品的对象识别系统和方法。 优选的对象识别系统包括用于收集从出售机器处出现的物体反射的光的感测装置。 感测装置包括用于将反射光（32）的颜色分量与未知物体（29）分离并将颜色分量引导到光学检测器（34）上的机构。 颜色分离器可以包括衍射光栅（72）或全息元件（82）。 或者，它可以包括以时间顺序方式操作的多个窄带照明源（92-94），每个以不同的波长带光照射。

公开(公告)号：WO1995022198A1

公开(公告)日：1995-08-17

申请号：PCT/US1995001390

申请日：1995-02-08

Applicant: PSC, INC.

Inventor： PSC, INC. ,  COLEMAN, Edward, P.

IPC: H03F01/36

CPC classification number: H03F1/48 ,  H03F1/083 ,  H03F3/195 ,  H03F2200/372 ,  H03H11/1217 ,  H03H11/126

Abstract: An amplifier circuit provides wide bandwidth low noise performance by minimizing the effect of a pole created by the feedback resistor (424) and the capacitance of the input device, such as a photodiode (10). This is accomplished by shifting the dominant pole to higher frequencies in the amplifier. A first amplifier stage (402) receives a signal from an input device (10) and feedback from a second amplifier stage (403). The first stage (402) is connected to the second stage (403) such that a lower gain stage is employed to eliminate the phase shift that would occur if the amplifier alone were used in open loop form. The output of the lower gain stage is provided to the second gain stage (403) with associated gain setting components (422, 424, 426) such that the dominant pole of the overall amplifier is shifted higher, typically by two decades.

Abstract translation: 放大器电路通过最小化由反馈电阻器（424）产生的极点和诸如光电二极管（10）的输入设备的电容的影响来提供宽带宽的低噪声性能。 这是通过将主极转移到放大器中的较高频率来实现的。 第一放大器级（402）从输入装置（10）接收信号并从第二放大级（403）接收反馈信号。 第一级（402）连接到第二级（403），使得采用较低增益级以消除仅在放大器单独使用开环形式时将发生的相移。 较低增益级的输出通过相关联的增益设置组件（422,424,426）提供给第二增益级（403），使得整个放大器的主极通常更高，通常为二十年。

公开(公告)号：WO1994029815A1

公开(公告)日：1994-12-22

申请号：PCT/US1994006330

申请日：1994-06-03

Applicant: PSC, INC.

Inventor： PSC, INC. ,  QUINN, Anna, M. ,  EASTMAN, Jay, M.

IPC: G06K07/10

CPC classification number: G06K7/10811 ,  G06K2207/1013

Abstract: In order to control laser beam propagation, working range and beam cross section in a bar code scanner, diffractive optics are used to modify the amplitude and/or phase distribution of the beam in the scanner. The beam is diffracted by a mask which has a plurality of apertures in the form of segments which are arranged across the beam cross section in the vicinity of a converging lens. The segments are sized (A, a) and their transmission functions selected (one segment having for example 100 % transmission (A) and the other having 50 % transmission (a)) such that bar codes close in (dwa1) and far out (dwa2) from the scanner are in regions of far field diffraction of different segments, or where such regions overlap, thereby extending the working range (w) of the scanner where bar codes of high density can be resolved.

Abstract translation: 为了控制条形码扫描器中的激光束传播，工作范围和光束横截面，使用衍射光学器件来修改扫描仪中光束的幅度和/或相位分布。 光束被掩模衍射，该掩模具有多个以会聚透镜附近横跨横截面布置的节段形式的孔。 这些段的大小（A，a）及其传输功能被选择（一个段具有例如100％传输（A），另一个具有50％传输（a）），使得条形码在（dwa1）和远 dwa2）在不同段的远场衍射区域中，或者这些区域重叠，从而延长扫描器的工作范围（w），其中高密度条形码可以被解析。

公开(公告)号：WO1994027246A1

公开(公告)日：1994-11-24

申请号：PCT/US1994005000

申请日：1994-05-06

Applicant: PSC, INC.

Inventor： PSC, INC. ,  CLARK, Timothy, J. ,  ANSARI, Shoeb

IPC: G06K07/10

CPC classification number: G06K7/10851 ,  G06K7/10881

Abstract: The system includes a bar code scanner (24), digitizer (28), security circuit (26), general purpose computer (20), and a screen (22). The scanner (24) communicates with the computer (20) over a serial communications link utilizing the serial I/O port of the computer (20). The security circuit (26) prevents unauthorized transfer of data into and out of the microcomputer (20). Both signals representing the data which is scanned and signals representing commands to the scanner (24) and commands from the scanner (24) indicative of the status thereof are communicated over a plurality of lines in the communications link. Appropriate interrupts are generated to actuate the scanner (24) and to respond to the data. The microcomputer (20) translates the data which represents the width of each bar and the number of bars and the detection of the end of a bar code symbol into digital values which are stored in memory and presented for decoding in accordance with programming of the microcomputer (20) which decodes the symbol.

Abstract translation: 该系统包括条形码扫描器（24），数字转换器（28），安全电路（26），通用计算机（20）和屏幕（22）。 扫描器（24）利用计算机（20）的串行I / O端口通过串行通信链路与计算机（20）通信。 安全电路（26）防止数据进出微计算机（20）的未经授权的传输。 表示扫描的数据的两个信号和表示对扫描器（24）的命令的信号和来自扫描器（24）的指示其状态的命令通过通信链路中的多条线路传送。 产生适当的中断来致动扫描仪（24）并响应数据。 微型计算机20将代表每个条的宽度的数据和条的数量以及条形码符号的结尾的检测转换成存储在存储器中并根据微计算机的编程提供的解码的数字值 （20），其解码符号。