Patents by Inventor James Giebel
James Giebel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9524410Abstract: A scanning device includes a laser source emitting a laser scanning beam, a movable scanning mirror reflecting the laser scanning beam towards an on object to be scanned, a mirror moving element moving the movable scanning mirror and a controller receiving an input corresponding to a range estimate from the scanning device to the object and adjusting a setting of the scanning device based on the range estimate.Type: GrantFiled: July 28, 2014Date of Patent: December 20, 2016Assignee: Symbol Technologies, LLCInventors: James Giebel, Vladimir Gurevich, Peter Fazekas, Dariusz Madej
-
Publication number: 20140332592Abstract: A scanning device includes a laser source emitting a laser scanning beam, a movable scanning mirror reflecting the laser scanning beam towards an on object to be scanned, a mirror moving element moving the movable scanning mirror and a controller receiving an input corresponding to a range estimate from the scanning device to the object and adjusting a setting of the scanning device based on the range estimate.Type: ApplicationFiled: July 28, 2014Publication date: November 13, 2014Inventors: JAMES GIEBEL, VLADIMIR GUREVICH, PETER FAZEKAS, DARIUSZ MADEJ
-
Patent number: 8861059Abstract: 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: GrantFiled: March 13, 2012Date of Patent: October 14, 2014Assignee: Symbol Technologies, Inc.Inventors: James Giebel, Peter Fazekas
-
Patent number: 8820645Abstract: A scanning device includes a laser source emitting a laser scanning beam, a movable scanning mirror reflecting the laser scanning beam towards an on object to be scanned, a mirror moving element moving the movable scanning mirror and a controller receiving an input corresponding to a range estimate from the scanning device to the object and adjusting a setting of the scanning device based on the range estimate.Type: GrantFiled: September 28, 2007Date of Patent: September 2, 2014Assignee: Symbol Technologies, Inc.Inventors: James Giebel, Vladimir Gurevich, Peter Fazekas, Dariusz Madej
-
Patent number: 8733659Abstract: In an electro-optical reader, an aiming or a scanning laser has a laser chip and a monitor photodiode. Output power of a laser beam emitted by the laser is regulated by a feedback circuit for maintaining substantially constant the laser beam output power during normal operation, a disabling circuit for disabling the feedback circuit, a drive circuit for driving the chip with a drive current when the feedback circuit is disabled, and for concomitantly generating a photodiode output voltage, a current modification circuit for modifying the drive current by a predetermined current with a concomitant change in the photodiode output voltage when the feedback circuit is disabled, and a control circuit for monitoring the change in the photodiode output voltage, for determining whether the change in the photodiode output voltage is sufficient to indicate an over-power condition, and for interrupting power to the chip when the over-power condition is indicated.Type: GrantFiled: August 27, 2010Date of Patent: May 27, 2014Assignee: Symbol Technologies, Inc.Inventors: James Giebel, Matthew Blasczak, Peter Fazekas, Mark Weitzner
-
Patent number: 8686338Abstract: A method and apparatus for imaging targets with an imaging reader. The method includes: (1) capturing return light from a target over a field of view of the solid-state imager and generating image data corresponding to the target; (2) transmitting the image data from the solid-state imager to the host when the gate circuit is set to the transmitting mode; and (3) preventing the image data from transmitting to the host when the gate circuit is set to the blocking mode.Type: GrantFiled: August 3, 2011Date of Patent: April 1, 2014Assignee: Symbol Technologies, Inc.Inventors: William C. Sackett, Christopher W. Brock, Daniel F. Brown, Bradley S. Carlson, James Giebel, David P. Goren, Michael M. Slutsky
-
Patent number: 8411177Abstract: A method and apparatus for providing current pulses to the illumination source in an imaging scanner. The method includes: (1) sensing a current supplied from a current port to obtain a current-monitoring signal; (2) controlling a charge current provided to a storage capacitor based on the current-monitoring signal; (3) measuring a parameter related to a voltage across the storage capacitor; and (4) generating a driving current for the illumination source by the illumination driver circuit, if the parameter is above a predetermined threshold value, to provide a driving current for a illumination source in an imaging scanner.Type: GrantFiled: June 24, 2009Date of Patent: April 2, 2013Assignee: Symbol Technologies, Inc.Inventor: James Giebel
-
Publication number: 20130032692Abstract: A method and apparatus for imaging targets with an imaging reader. The method includes: (1) capturing return light from a target over a field of view of the solid-state imager and generating image data corresponding to the target; (2) transmitting the image data from the solid-state imager to the host when the gate circuit is set to the transmitting mode; and (3) preventing the image data from transmitting to the host when the gate circuit is set to the blocking mode.Type: ApplicationFiled: August 3, 2011Publication date: February 7, 2013Applicant: Symbol Technologies, Inc.Inventors: William C. Sackett, Christopher W. Brock, Daniel F. Browm, Bradley S. Carlson, James Giebel, David P. Goren, Michael S. Slutsky
-
Patent number: 8220713Abstract: Illumination driver circuit for using in an imaging-based barcode reader is configured to provide the driving current for the illumination source with a Buck regulator when the driving current is above a threshold current value and to provide the driving current for the illumination source with a linear regulator when the driving current is not above the threshold current value. The threshold current value is substantially close to the smallest current the Buck regulator operative to provide when operating in a continuous mode.Type: GrantFiled: December 21, 2010Date of Patent: July 17, 2012Assignee: Symbol Technologies, Inc.Inventors: Peter Fazekas, James Giebel
-
Publication number: 20120170093Abstract: 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: ApplicationFiled: March 13, 2012Publication date: July 5, 2012Applicant: Symbol Technologies, Inc.Inventors: James Giebel, Peter Fazekas
-
Publication number: 20120153024Abstract: Illumination driver circuit for using in an imaging-based barcode reader is configured to provide the driving current for the illumination source with a Buck regulator when the driving current is above a threshold current value and to provide the driving current for the illumination source with a linear regulator when the driving current is not above the threshold current value. The threshold current value is substantially close to the smallest current the Buck regulator operative to provide when operating in a continuous mode.Type: ApplicationFiled: December 21, 2010Publication date: June 21, 2012Applicant: Symbol Technologies, Inc.Inventors: Peter Fazekas, James Giebel
-
Patent number: 8167208Abstract: 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: GrantFiled: June 23, 2010Date of Patent: May 1, 2012Assignee: Symbol Technologies, Inc.Inventors: Mark Weitzner, James Giebel
-
Patent number: 8154783Abstract: 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: GrantFiled: September 16, 2008Date of Patent: April 10, 2012Assignee: Symbol Technologies, Inc.Inventors: James Giebel, Peter Fazekas
-
Publication number: 20120048942Abstract: In an electro-optical reader, an aiming or a scanning laser has a laser chip and a monitor photodiode. Output power of a laser beam emitted by the laser is regulated by a feedback circuit for maintaining substantially constant the laser beam output power during normal operation, a disabling circuit for disabling the feedback circuit, a drive circuit for driving the chip with a drive current when the feedback circuit is disabled, and for concomitantly generating a photodiode output voltage, a current modification circuit for modifying the drive current by a predetermined current with a concomitant change in the photodiode output voltage when the feedback circuit is disabled, and a control circuit for monitoring the change in the photodiode output voltage, for determining whether the change in the photodiode output voltage is sufficient to indicate an over-power condition, and for interrupting power to the chip when the over-power condition is indicated.Type: ApplicationFiled: August 27, 2010Publication date: March 1, 2012Applicant: Symbol Technologies, Inc.Inventors: James GIEBEL, Matthew BLASCZAK, Peter FAZEKAS, Mark WEITZNER
-
Publication number: 20110315771Abstract: 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: ApplicationFiled: June 23, 2010Publication date: December 29, 2011Applicant: SYMBOL TECHNOLOGIES, INC.Inventors: Mark WEITZNER, James GIEBEL
-
Patent number: 8033472Abstract: A bioptical workstation includes plural image capture modules for capturing images of indicia along different fields of view. Each module includes an illuminator for illuminating the indicia with illumination light, a megapixel imager with a rolling shutter for sequentially capturing the return light, and a shutter element for passing the return light to its imager in an open state, and for blocking the return light from other modules from reaching its imager in an closed state. A controller prevents interference among the modules by controlling the shutter element to assume the open state only during a respective exposure time period during which its imager produces an electrical signal indicative of the indicia, and by controlling the shutter element to assume the closed state at all times other than the respective exposure time period to prevent capture of the return light from the other modules.Type: GrantFiled: December 1, 2008Date of Patent: October 11, 2011Assignee: Symbol Technologies, Inc.Inventors: James Giebel, Edward Barkan, Christopher Warren Brock, Mark Drzymala, Igor Vinogradov
-
Patent number: 8028917Abstract: An imaging reader includes an illuminating light assembly, an illuminating control operative to control either the intensity or the duration of the illumination light projected by the illuminating light assembly, and a solid-state imager. The solid-state imager includes a matrix of optical-sensors and a signal processing circuit coupled to the matrix of optical-sensors. The controller is operative to determine the optimized exposure level of the illuminating control and the optimized gain of the signal processing circuit based on a measured voltage of a voltage power source for the solid-state imager.Type: GrantFiled: December 18, 2008Date of Patent: October 4, 2011Assignee: Symbol Technologies, Inc.Inventor: James Giebel
-
Patent number: 7905414Abstract: An imaging assembly in an imaging reader for electro-optically reading indicia includes a solid-state imager having an array of image sensors, and a focus control element, such as a liquid imaging lens, having a variable transfer function characteristics for capturing, optically modifying and directing return light from the indicia over a field of view onto the imager for processing into an electrical signal indicative of the indicia during a reading mode of operation; and a controller for controlling the imaging assembly to optically modify the return light in accordance with a known transfer function stored in a memory accessible to the controller during a calibration mode of operation prior to the reading mode.Type: GrantFiled: December 27, 2007Date of Patent: March 15, 2011Assignee: Symbol Technologies, Inc.Inventors: James Giebel, David P. Goren, Bradley Carlson, Christopher Warren Brock, William Sackett, Edward Barkan, Vladimir Gurevich
-
Patent number: 7902984Abstract: Methods, systems, and apparatuses for a reader transceiver circuit are described. The reader transceiver circuit incorporates a frequency generator, such as a surface acoustic wave (SAW) oscillator. A reader incorporating the reader transceiver circuit is configured to read a tag at very close range, including while being in contact with the tag. The transceiver can be coupled to various host devices in a variety of ways, including being located in a RFID reader (e.g., mobile or fixed position), a computing device, a barcode reader, etc. The transceiver can be located in an RFID module that is attachable to a host device, can be configured in the host device, or can be configured to communicate with the host device over a distance. The RFID module may include one or more antennas, such as a first antenna configured to receive a magnetic field component of an electromagnetic wave and a second antenna configured to receive an electric field component of an electromagnetic wave.Type: GrantFiled: July 7, 2009Date of Patent: March 8, 2011Assignee: Symbol Technologies, Inc.Inventors: Mark Duron, James Giebel, David Goren, Thomas Wulff, Richard T. Knadle, Jr., Christopher Brock
-
Publication number: 20100328506Abstract: A method and apparatus for providing current pulses to the illumination source in an imaging scanner. The method includes: (1) sensing a current supplied from a current port to obtain a current-monitoring signal; (2) controlling a charge current provided to a storage capacitor based on the current-monitoring signal; (3) measuring a parameter related to a voltage across the storage capacitor; and (4) generating a driving current for the illumination source by the illumination driver circuit, if the parameter is above a predetermined threshold value, to provide a driving current for a illumination source in an imaging scanner.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Applicant: SYMBOL TECHNOLOGIES, INC.Inventor: James GIEBEL