Device and method for the acquisition and automatic processing of data obtained from optical codes

• US 8,058,600 B2
• Filed: 12/22/2008
• Issued: 11/15/2011
• Est. Priority Date: 11/02/1998
• Status: Expired due to Term

• Current Assignee: Datalogic IP Tech S.r.l. (Datalogic S.p.A.)
• Original Assignee: Datalogic S.p.A.
• Inventors: Zocca, Rinaldo, Piva, Marco, Canini, Federico
• Primary Examiner(s): Pyo; Kevin
• Application Number:
  US12/341,460
• Publication Number:
  US 20090166569A1
• Time in Patent Office: 1,058 Days
• Field of Search: 250/208.1, 250/214.1, 235/454, 235/455, 235/462.11, 235/462.41, 348/294, 348/302, 348/307, 348/308
• US Class Current: 250/208.1
• CPC Class Codes: G06K 7/10722 Photodetector array or CCD scanning
• CPC Class Codes: G06K 7/10841 Particularities of the light-sensitive elements semiconductor devices H01L
• CPC Class Codes: G06K 7/10851 Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device basic electronic circuitry H03
• CPC Class Codes: G06V 10/22 by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
• CPC Class Codes: H04N 25/00 Circuitry of solid-state image sensors [SSIS]; Control thereof

Abstract

The device for the acquisition and automatic processing of data obtained from optical codes comprises a CMOS optical sensor; an analog processing unit connected to the optical sensor; an analog/digital conversion unit connected to the analog processing unit; a logic control unit connected to the CMOS optical sensor, the analog processing unit and the analog/digital conversion unit; and a data-processing unit connected to the logic control unit and the analog/digital conversion unit. The CMOS optical sensor and at least one of the analog processing, analog/digital conversion, logic control and data processing units are integrated in a single chip. The data processing unit processes the digital signals corresponding to the image acquired by the CMOS sensor and extracts the optically coded data.

Claims

1. A device for the acquisition of data obtained from reading at least one type of optical code having data coded therein by a combination of elements in accordance with pre-defined rules, comprising:

means for generating an electric signal correlated to the brightness of an image including a CMOS optical sensor comprising a plurality of pixels arranged in a plurality of lines and columns; and

acquisition means for acquiring an electric signal from at least one window of pixels of said CMOS optical sensor, said window comprising a sub-portion of said plurality of pixels,

processing means for processing the electrical signal acquired from said window to extract optical coded data therefrom;

reading means for attempting a reading of the extracted optical coded data,

wherein said acquisition means is configured for acquiring an electric signal from at least one further window of pixels of said CMOS optical sensor when the reading attempt of the extracted optical coded data is not successful, said further window being different from said window in at least one of size and shape.

2. The device according to claim 1 wherein said window includes at least a portion of at least two lines or two columns of said CMOS optical sensor.

3. The device according to claim 1 wherein said at least two lines or two columns are respectively adjacent lines or adjacent columns.

4. The device according to claim 1 wherein said at least two lines or two columns are respectively non adjacent lines or non adjacent columns.