公开(公告)号：JPH06187481A

公开(公告)日：1994-07-08

申请号：JP16165393

申请日：1993-06-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： ROSA RALPH ,  GREENROSE JAY ,  BEZALEL MENASHE ,  DVORKIS PAUL ,  BARKAN EDWARD ,  BARKAN CHRISTINE

IPC: G06K7/00 ,  G06K5/00 ,  G06K7/10 ,  G06K7/14 ,  G06K19/06

Abstract: PURPOSE: To provide a method for reading a bar code which is encoded by the relative width of one or both of bars and spaces and by the relative height of the bar by scanning with long laser beams across the bar code which is height-modulated or width-modulated. CONSTITUTION: The bar code is scanned by a light source generating almost oval illumination spot 200. The bar code may be a height modulation code (A) or a width modulation code (B). The intensity of light reflected from the bar code changes when the illumination spot crosses the bar code. When the illumination spot 200 crosses the spaces (205'), reflected light intensity reaches a maximum value and it reduces when it crosses a short bar [205" of (A)] or a fine bar [205" of (B)]. Reflected light intensity reaches a minimum value when it crosses the long bar [205"' of (A)] or the thick bar [205"' of (B)]. Consequently, it is clear that the patterns of (A) and (B) become the patterns of reflected light intensity and they can be decoded.

公开(公告)号：WO2014193594A3

公开(公告)日：2015-02-19

申请号：PCT/US2014036356

申请日：2014-05-01

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： CONNOLLY SEAN ,  DURON MARK W ,  GREENROSE JAY ,  SCARAMOZZINO UMBERTO

IPC: G06Q20/00

CPC classification number: G06F3/147 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2370/16 ,  G09G2380/04 ,  H04L41/0833 ,  H04L69/18 ,  H04W4/008 ,  H04W40/10 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0261 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/326

Abstract: Updating a multi-band reconfigurable electronic shelf label includes waking-up a transceiver and processor of the electronic shelf label, such that the transceiver can be reconfigured to operate on a selected frequency band in order to receive updated information on a data link associated with that selected frequency band. The selected frequency band is chosen based on a power efficiency of the associated data link. The updated information can be received on the associated data link of the selected frequency band, and can be displayed on a display of the electronic shelf label. A supplemental data link using a Radio Frequency Identification circuit can be provided among the other data link selections in the label.

Abstract translation: 更新多频带可重新配置的电子货架标签包括唤醒电子货架标签的收发器和处理器，使得收发器可以被重新配置为在选定的频带上操作，以便接收关于该数据链路的数据链路上的更新的信息 选定频带。 所选择的频带基于相关联的数据链路的功率效率来选择。 可以在所选频带的相关联的数据链路上接收更新的信息，并且可以显示在电子货架标签的显示器上。 可以在标签中的其他数据链路选择中提供使用射频识别电路的补充数据链路。