Patents Assigned to Symbol Technologies
  • Arrangement for and method of controlling monitor photodiode leakage current in lasers in electro-optical readers
    Patent number: 8167208
    Abstract: In an electro-optical reader, an aiming or a scanning laser has an internal laser chip and a monitor photodiode. A controller deenergizes the chip in a deenergized state, and energizes the chip to emit a laser beam with an output power in an energized state. A positive voltage power supply forward biases and maintains the photodiode at a substantially constant positive voltage below a threshold voltage, to support a substantially constant photodiode leakage current in both states. A signal processor supports a total current comprised of a main photodiode current indicative of the output power of the laser beam in the energized state and of the leakage current which flows opposite to the main current, and removes the leakage current from the total current to output only the main current in the energized state.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Mark Weitzner, James Giebel
  • Increasing imaging quality of a bar code reader
    Patent number: 8167209
    Abstract: The exemplary system requires a 2D barcode be located on an object, a portion of which is to be captured in an image. The module size of the 2D barcode is chosen to match the smallest feature to be preserved on the output image. While the target is moving with respect to the imager the 2D bar code is also moving and the resulting image is degraded. The imager will properly decode the 2D barcode only if the bar code is stationary (or moving very slowly) and hence will provide an acceptable image in the region of the 2D bar code.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Eugene Joseph, Duanfeng He
  • System and method for peer-to-peer staging of a mobile device
    Patent number: 8169934
    Abstract: A system comprising a first mobile device and a second mobile device. The first mobile device includes a memory and an output arrangement. The memory stores a staging profile. The staging profile is used to configure at least a portion of the first mobile device. The second mobile device includes an input arrangement. The input arrangement obtains the staging profile from the output arrangement. At least a portion of the second mobile device is configured using the staging profile.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Allan Herrod
  • Adaptive focusing using liquid crystal zone plates in electro-optical readers
    Patent number: 8169589
    Abstract: Working range and beam cross-section are adjusted in an electro-optical reader for reading indicia by applying voltages to electrodes in one or more liquid crystal zone plates in which the index of refraction is changed in different regions of each zone plate.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: David Tsi-Shi
  • Integrated optical exit window
    Patent number: 8167207
    Abstract: A device including a housing, an imaging engine and a transparent exit window. The imaging engine is located within the housing. The exit window is in the housing allowing light to pass from an exterior of the device to the imaging engine within the housing. The exit window has a plurality of segments. Each of the segments has a corresponding optical property.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: David Tsi Shi, Alan J. Epshteyn, Edward Voli
  • Internal accessory antenna system and method for wireless network
    Patent number: 8170611
    Abstract: Described is a method and system which includes an arrangement including an internal wireless communication antenna and a wireless communication device couplable to one of an external wireless communication antenna and the arrangement. When the arrangement is attached to the device, the device is capable of unitizing either first or second wireless channels. When the arrangement is not attached to the device, the device utilizes only the second channel.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Philip N. Ballai
  • Self-assignment of detectors and workers among access devices in a wireless network environment
    Patent number: 8170050
    Abstract: A self-assignment method for assigning detector and working devices among a plurality of access devices in a wireless network begins by performing wireless data collection with the access devices during an automated calibration period. During this time, each access device receives beacons from one or more other transmitting access devices. The method records radio frequency (RF) data associated with beacons received during the wireless data collection, and thereafter automatically designates at least one of the access devices as a detector device, based upon the recorded RF data.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Aihua Edward Li
  • Interference mitigation in mobile units having location transmitters
    Patent number: 8169991
    Abstract: A mobile device for data communications has a radio circuit for data communications with a wireless network access point and a radio tag for transmitting location-identifying radio signals. The radio circuit and the radio tag are co-located on a circuit board or are commonly powered. The operation of the radio circuit and the radio tag are segregated in time to avoid interference. Standard wireless network interface protocol functions are exploited to identify time intervals in which the radio circuit is inactive for data communications. These time intervals are used to operate the radio tag to transmit the location-identifying radio signals.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Sarosh Vesuna, Chris Zegelin
  • Battery pack with built in communication port
    Patent number: 8169188
    Abstract: A system and method for providing a communication port integral with a battery pack assembly is disclosed. The system provides a pathway between an external unit and a host unit via a printed circuit board of the battery pack. The battery pack can include communication ports mounted on the printed circuit board for interfacing with external units. The printed circuit board further includes a substrate(s) formed with a predetermined wiring pattern electrically and/or mechanically joined to the CPU of the host unit, as well as the battery cell(s).
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Eduard Kogan, Vladimir Yakhnich
  • Methods and apparatus for implementing a search tree
    Patent number: 8171539
    Abstract: Apparatus and methods are provided for implementing a firewall in a network infrastructure component. A method comprises generating a search tree for a plurality of rules. The search tree comprises a first node having a first field bounds and a first set of rules of the plurality of rules, and a plurality of child nodes for the first node. Each child node has child field bounds based on an intersection of the first field bounds and the first set of rules, and each child node is assigned a respective subset of the first set of rules based on the respective child field bounds. The method further comprises receiving a first packet, identifying a first child node of the plurality of child nodes based on values for one or more fields of the first packet, and applying the respective subset of rules assigned to the first child node to the first packet.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Trevor Miranda
  • Arrangement For And Method Of Reducing Vertical Parallax Between An Aiming Pattern And An Imaging Field Of View In A Linear Imaging Reader
    Publication number: 20120097744
    Abstract: Vertical parallax between an imaging linear field of view (FOV) and an aiming light pattern is reduced in a reader for electro-optically reading symbols to be read by image capture by an arrangement that includes an imaging assembly having a solid-state imager with a linear array of image sensors, and an imaging lens for capturing return light over the imaging linear FOV from a symbol and for projecting the captured return light onto the linear array, an aiming light assembly spaced vertically away from the imaging assembly for generating the aiming light pattern on the symbol prior to reading, and an optical assembly for intercepting the aiming light pattern and for vertically aligning the aiming light pattern with the imaging linear FOV to reduce the vertical parallax.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Applicant: Symbol Technologies, Inc.
    Inventors: Mark Drzymala, Edward Barkan
  • Geographically agnostic wireless data communication system having wireless devices
    Patent number: 8164441
    Abstract: A wireless data communication system suitable for use as a radio frequency (RF) locationing or presence detection system includes at least one wireless access device and at least one active RF tag corresponding to an item or asset of interest. The wireless access device is configured to transmit a locale message that conveys location-specific data corresponding to a geographic operating region of the wireless access device. The active RF tag receives the locale message, processes the location-specific data conveyed in the locale message, and configures itself in accordance with the location-specific data to support operation using a selected wireless data communication scheme. The selected scheme is compliant with the operating requirements of the geographic operating region in which the active RF tag resides.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: April 24, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Sameer Kanagala, Ajay Malik
  • Method of setting amount of exposure for photodetector array in barcode scanner
    Patent number: 8162224
    Abstract: A method and apparatus for setting the amount of exposure for the photodetector array in a barcode scanner. An image is captured with the photodetector array. The type for each sub-region in the multiple sub-regions in the image captured is determined. Each sub-region in the multiple sub-regions is assigned a weight based on the type of the sub-region. The amount of exposure for the photodetector array in the barcode scanner is set automatically based on the weight for each sub-region in the multiple sub-regions. In some embodiments, the predetermined image area are repartitioned into new multiple sub-regions based on the image captured, and the amount of exposure for the photodetector array in the barcode scanner is set automatically based on the weight for each sub-region in the new multiple sub-regions.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: April 24, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: Dayou Wang, Joseph Cai, Michelle Wang
  • METHOD AND APPARATUS FOR CAPTURING IMAGES WITH VARIABLE SIZES
    Publication number: 20120091206
    Abstract: A method and apparatus for imaging targets with an imaging reader. The method includes: operatively connecting an application specific integrated circuit (ASIC) to the solid-state imager to receive the image data from the solid-state imager and generating a stream of combined data frames by the ASIC. A combined data frame in the stream generated by the ASIC including an image frame from the image data and a header. The method also includes receiving and processing the stream of combined data frames from the ASIC at a controller operatively connected to the ASIC.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Applicant: Symbol Technologies, Inc.
    Inventor: David P. Goren
  • OBJECT PROXIMITY SENSOR RECESSED INTO IMAGING READER
    Publication number: 20120085824
    Abstract: An electro-optical imaging reader includes a chassis mounted in a housing, a window spaced from a rear wall of the chassis, an imaging module for capturing return light from a target through the window over an imaging field of view, a controller for operating the reader in a standby state in which no target is read, and for processing the captured return light to read the target during a reading state, and an object sensing assembly supported by the rear chassis wall and spaced from the window. The object sensing assembly senses the presence of an object bearing the target in front of the window by detecting return sensing light from the object through the window over a sensing field of view that at least partially overlaps the imaging field of view, and triggers the controller to change from the standby state to the reading state upon such detection.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 12, 2012
    Applicant: Symbol Technologies, Inc.
    Inventors: Darran HANDSHAW, Yuly Mitelman, Eric Trongone, Igor Vinogradov, Wancheng Zhao
  • System and method for a WPAN firewall
    Patent number: 8156544
    Abstract: Systems and methodologies for implementing Wireless Personal Area Network (WPAN) security are provided herein. As disclosed herein, firewall functionality can be implemented for a WPAN-capable device to control access to resources of the device over a WPAN. In one example, a WPAN protocol can be extended to include low-level access control measures that enable analysis of communication requests to and/or from a device prior to acting on the requests. As described herein, a WPAN firewall associated with a device can be configured to block, monitor, and/or log respective resource accesses to and/or from a WPAN. WPAN firewall functionality as described herein can be configured using mechanisms such as an Application Programming Interface (API) and/or a user control interface. Additionally, lateral regulation of security policies for a WPAN and one or more other networks utilized by a device can be provided.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: April 10, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: James R. Fuccello
  • Method and apparatus for controlling mirror motion in light scanning arrangements
    Patent number: 8154783
    Abstract: A method and apparatus of driving a motor in a light scanning arrangement. The method includes the following steps: (1) driving a drive coil with a drive signal to oscillate a scan mirror and a light beam reflected from the scan mirror; (2) generating a feedback signal having zero crossings during oscillation of the scan mirror by a feedback coil in proximity to the drive coil; (3) integrating the feedback signal to generate an integrated feedback signal; and (4) processing the integrated feedback signal to generate a periodic drive signal that has the same time period as the feedback signal.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: April 10, 2012
    Assignee: Symbol Technologies, Inc.
    Inventors: James Giebel, Peter Fazekas
  • Analysis leading to automatic action
    Patent number: 8156388
    Abstract: A system and methods for detecting an operational problem on a mobile device and automatically resolving the problem with a coordinated execution of repair tasks on the mobile device and on the plurality of servers communicatively connected to the mobile device providing for a complex solution to an operational problem. The system can archive a history of corrective actions and their outcome for later analysis and reporting.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 10, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Allan Herrod
  • Graphical battery management system
    Patent number: D658524
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: Mark Palmer
  • Programmable mobile device with thumb wheel
    Patent number: RE43344
    Abstract: A programmable mobile terminal which includes a thumb wheel for selecting among a plurality of functions executable by the mobile terminal. The programmable mobile terminal allows a user to employ the same hand that is holding the mobile terminal to scroll through and select a function among a plurality of functions via the thumb wheel. The wheel portion of thumb wheel is rotated either clockwise or counter clockwise by the user's thumb or other finger to scroll a screen cursor through the functions and once the screen cursor of the mobile terminal is positioned at a desired function, the user can depress the wheel portion in a transaxial direction with the same thumb or finger to select the desired function. Also, the programmable mobile terminal allows a user to scan bar code information and use the thumb wheel for selecting among a plurality of functions relating to the scanned bar code information.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: May 1, 2012
    Assignee: Symbol Technologies, Inc.
    Inventor: James M. Cisar