Patents Assigned to Symbol
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Patent number: 7435508Abstract: Described is a portable electronic device which may include a body accommodating electrical components of the device. The body defines a battery chamber and a battery receiving element movably mounted within the battery chamber. The battery receiving element includes a first set of contacts configured for a first battery type and a second contact configured for a second battery type and is movable between a first position in which the first set of contacts is exposed in the battery chamber and a second position in which the second contact is exposed in the battery chamber.Type: GrantFiled: September 30, 2004Date of Patent: October 14, 2008Assignee: Symbol Technologies, Inc.Inventors: Roland Lee, Quintin Morris, Terry Lee, Osman Yin
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Patent number: 7437127Abstract: A wireless coverage map of a wireless network is generated as a function of a location of at least one access point and a first signal data collected at a plurality of locations within the network. The first signal data includes a first signal strength of a wireless signal communicated between the at least one access point and a wireless device. A second signal data is received. The second signal data includes a second signal strength of a further wireless signal communicated between one of the at least one access point and a further wireless device. The existence of the predetermined wireless network coverage condition is determined as a function of the second signal data and the wireless coverage map.Type: GrantFiled: July 28, 2005Date of Patent: October 14, 2008Assignee: Symbol Technologies, Inc.Inventors: David P. Goren, Vinh-Phuong Tra Le, Benjamin Bekritsky, Guang Zeng
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Publication number: 20080246615Abstract: Methods, systems, and apparatuses for radio frequency identification (RFID) reader antennas are described. In as aspect, a reader antenna includes a reflecting element and a radiating element. The reflecting element has a body that defines a cavity. The radiating element is positioned in the cavity. The radiating element transmits a RF signal for the reader antenna. The reflecting element reflects the RF signal to alter a characteristic of the RF signal transmitted by the reader antenna.Type: ApplicationFiled: April 4, 2007Publication date: October 9, 2008Applicant: Symbol Technologies, Inc.Inventors: Mark Duron, Richard T. Knadle
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Patent number: 7433648Abstract: A system is provided for communication and sensory monitoring. The system comprises a plurality of nodes installed as a network in a structure. Each of the plurality of nodes comprises an internode transceiver for wireless communication between nodes, a wireless network transceiver for wireless communication with one or more wireless devices, one or more sensors for monitoring the environment of the structure and a processor coupled to the internode transceiver, the wireless network transceiver and the one or more sensors to exchange data with the internode transceiver, the wireless network transceiver and the one or more sensors devices coupled to the processor and process the data. The system also includes a wide area network bridge coupled to the plurality of network nodes. The network bridge receives data from the plurality of network nodes and passes the information to a computer network for processing.Type: GrantFiled: December 31, 2003Date of Patent: October 7, 2008Assignee: Symbol Technologies, Inc.Inventor: Raj Bridgelall
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Patent number: 7432446Abstract: An electrical cable bulk which can be coiled includes a jacket; a first wire assembly and a second wire assembly. The first wire assembly includes a shield conductor member at least partially shielding a first wire set. The first wire set includes a pair of insulated conductors disposed contiguously within the shield conductor member; and a ground conductor disposed within the shield conductor member. The second wire assembly includes a first shield conductor member at least partially shielding a second wire set. The second wire set includes a first pair of insulated conductors disposed contiguously within the first shield conductor member and a second pair of insulated conductors disposed contiguously within the first shield conductor member. The second wire assembly includes a second shield conductor member around a drain conductor and the first shield conductor member. The first and second wire assemblies are disposed within the jacket.Type: GrantFiled: September 28, 2005Date of Patent: October 7, 2008Assignee: Symbol Technologies, Inc.Inventors: Paul Orfin, Christopher P. Klicpera, Michael Savona, Timothy Kehoe
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Patent number: 7433108Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The brightness of the illuminated pixels is enhanced by combining constituent laser beams of the same wavelength. The contrast of the illuminated pixels is improved by sweeping a composite beam across a polarized screen, and by making the polarizations of all the constituent laser beams of the composite beam the same.Type: GrantFiled: April 25, 2007Date of Patent: October 7, 2008Assignee: Symbol Technologies, Inc.Inventors: Chinh Tan, Miklos Stern
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Publication number: 20080238676Abstract: Systems and methods for securely provisioning and managing security data based on location are provided. In an installation having one or more secure locations, a physically secure container having a security data tag is provided in a secure location. Security data required to establish a secure application (e.g., secure communications with a network element or with one or more peripheral devices in the secure location), such as a digital certificate and/or cryptographic keys, is written into the security data tag. Each secure location within an installation may have different security needs and therefore the security data tags in different locations may store different sets of security data. When a reader or device requiring access to an application enters a secure location, the security data is read from the tag and used to establish a secure application.Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: Symbol Technologies, Inc.Inventors: Parmjit S. Dhillon, Thomas K. Roslak
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Publication number: 20080239509Abstract: An imaging lens assembly (30) for a camera assembly (20) of an imaging-based bar code reader (10) for focusing an image (100?) of a target object (100) within a field of view (FV) of the camera assembly (20) onto a sensor array (28) of the camera assembly (20). The imaging lens assembly includes a front aperture stop (31) facing the field of view (FV), the aperture stop (31) including an aperture (31a) through which light from the field of view (FV) passes. The imaging lens assembly (30) further including a three lens system (36) disposed rearward of the front aperture stop (31) and a meniscus lens (35) disposed rearward of the three lens system (36). The three lens system (36) and the meniscus lens (35) receiving light passing through the aperture (31a) and focusing the light onto the sensor array (28).Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: Symbol Technologies, Inc.Inventor: Igor Vinogradov
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Publication number: 20080239140Abstract: An apparatus and method is provided for focusing an image of a target object. The apparatus comprises imaging circuitry for analyzing an image reflected from a target object that is projected onto an imaging sensor coupled to the imaging circuitry. A fixed imaging lens having an optical axis in alignment with the imaging sensor focuses the reflected image onto the imaging sensor. One of a plurality of apertures located within a selectable aperture of varying sizes is selected for optically enhancing the fixed imaging lens. An actuator is coupled to the selectable aperture for selectively selecting the one of the plurality of apertures in a direction transverse to optical axis for optically enhancing the fixed imaging lens.Type: ApplicationFiled: March 30, 2007Publication date: October 2, 2008Applicant: SYMBOL TECHNOLOGIES, INC.Inventor: Igor Vinogradov
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Publication number: 20080238745Abstract: A multiplexing circuit uses parallel-configured pairs of resistors and signal sources in a voltage divider network in such a way that a single analog-to-digital input can be used to specify the state of more than one signal source. One circuit includes a microprocessor having an analog-to-digital (ADC) input; a memory communicatively coupled to the microprocessor; and a voltage divider network having an output coupled to the ADC input, wherein the network includes a plurality of resistors paired with a plurality of respective signal sources, and wherein the output is unique for each combination of states of the signal sources in accordance with a known relation that is stored in the memory. The signal sources are selected from two categories of sources: continuous sources and discrete sources, where discrete sources may be binary discrete or random discrete. In one embodiment, the first signal source is either a continuous source or a random discrete source, and the second signal is a binary discrete source.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: SYMBOL TECHNOLOGIES, INC.Inventor: Christopher PAUL
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Patent number: 7430682Abstract: Interleaving multiple logical data streams into one physical data stream reduces overhead required to process the multiple logical data streams. Multiple arrays of data values are interleaved into a combined array of data that simulates a frame of data for input to a data port such as a video port. Revised timing and synchronization signals are provided to permit transmission of the combined array according to video data port protocol. The processor includes instructions for locating the various arrays of data values within the combined array.Type: GrantFiled: September 30, 2005Date of Patent: September 30, 2008Assignee: Symbol Technologies, Inc.Inventors: Bradley Carlson, William Sackett, Eugene Joseph, Duanfeng He
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Patent number: 7428999Abstract: A MEMS-based reader has an extended range of working distances for reading bar code symbols. A digitizer resolves the edges of bar code symbols when located at far-away distances from the reader within the working range. The digitizer includes a differentiator for differentiating the analog signal to generate a first derivative signal, a peak detector for detecting voltage peaks in the first derivative signal, and a comparator for comparing voltage drops after the voltage peaks with a predetermined voltage value, and for determining the presence of each edge when each voltage drop at least equals, and preferably exceeds, the predetermined voltage value.Type: GrantFiled: September 29, 2006Date of Patent: September 30, 2008Assignee: Symbol Technologies, Inc.Inventor: Edward Barkan
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Patent number: 7430198Abstract: A radio frequency exchange utilization calculation method in wireless medium that comprises identifying a plurality of packet counters pertaining to each of a plurality of transmission speeds and to each of a plurality of components of the wireless medium, identifying a plurality of octet counters pertaining to each of a plurality of transmission speeds and to each of a plurality of components of the wireless medium, incrementing each packet counter by one in accordance to the speed a data packet is transmitted, incrementing each plurality of octet counters by a number of octets in the data packet, calculating a packet weighted effective bit rate, calculating an octet weighted effective bit rate, calculating a total data exchanged, and calculating a percentage for the radio frequency exchange performance.Type: GrantFiled: May 26, 2005Date of Patent: September 30, 2008Assignee: Symbol Technologies, Inc.Inventors: Carl Mower, Jason Hatashita, Tina Wu
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Patent number: 7428995Abstract: A bar code scanning device, system and method that utilizes one or more vertical cavity surface emitting laser diodes for producing at least one laser beam, where the vertical cavity surface emitting laser diodes are disposed on a substrate, and wherein the produced laser beam is substantially an essential single spatial mode laser beam. The bar code scanning device, system and method of present invention also comprise a photodiode attached to the substrate and arranged to receive at least a portion of the beam of light reflected off the scanned bar code or symbol.Type: GrantFiled: February 5, 2001Date of Patent: September 30, 2008Assignee: Symbol Technologies, Inc.Inventors: Miklos Stern, Chinh Tan, Yajun Li, Howard Shepard, Thomas Mazz, Eric Barkan, Vikram Bhargava, Andrew Fusco, Mark Weitzner
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Patent number: 7428991Abstract: A scanner with a two dimensional array of sensors generates an aiming pattern that is concurrently used as illumination for a segment of the array. In this manner, one-dimensional and simple two-dimensional barcodes can be quickly processed by loading and decoding only the segment of the array.Type: GrantFiled: October 31, 2005Date of Patent: September 30, 2008Assignee: Symbol Technologies, Inc.Inventors: Eugene Joseph, Bradley Carlson, Duanfeng He
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Patent number: 7426383Abstract: A intrusion detection method is disclosed for use in a wireless local area data communications system, wherein mobile units communicate with access points, and wherein the system is arranged to locate transmitters using signals transmitted by the transmitters. A database relating authorized transmitters to location is maintained. Selected signals are detected at the access points and location data corresponding to the selected signals for use in locating a source of the signals is recorded. The source location is determined using the location data, and the source location is compared to a corresponding location in the database. An alarm is signaled if the source location is inconsistent with the corresponding database location.Type: GrantFiled: December 22, 2003Date of Patent: September 16, 2008Assignee: Symbol Technologies, Inc.Inventors: Huayan Amy Wang, Dave Goren, Jacob Sharony, Bruce Willins
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Patent number: 7425073Abstract: A method and apparatus are provided to controllably reduce power of a laser projection display (LPD). Light is scanned from a laser onto a viewing surface to produce an image thereon, and power used by the laser is reduced used while scanning at least a portion of the viewing surface.Type: GrantFiled: May 31, 2004Date of Patent: September 16, 2008Assignee: Symbol Technologies, Inc.Inventors: Frederick F. Wood, Paul Dvorkis, Ron Goldman, Narayan Nambudiri, Miklos Stern, Chinh Tan, Carl Wittenberg, Dmitriy Yavid
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Patent number: 7425888Abstract: System and methods for optimizing communications between an RFID reader and a population of tags are described. To minimize the amount of data exchanges, the reader and tags use non-sequential bit string or byte masking. In non-sequential bit string masking, the reader transmits an interrogation mask having a plurality of non-sequential sub-masks to the tags. During subsequent collection of the identification sequence, the reader and tags only exchange the non-masked bit positions. The interrogation mask can be determined using superposition processing, historical tendencies, or known identification and/or subset of identification ranges. During superposition processing, the reader determines whether a bit position contains a single value or multiple values for tags in the tag population. If the bit position contains a single value, the bit position is designated as masked. If the bit position contains multiple values, the bit position is designated as non-masked.Type: GrantFiled: July 29, 2005Date of Patent: September 16, 2008Assignee: Symbol Technologies, Inc.Inventor: Kevin J. Powell
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Patent number: 7424000Abstract: A communication system comprises a wireless switch, a plurality of wired access ports and a plurality of wireless access ports. The plurality of wired access ports are coupled to the wireless switch via a wired connection and are configured to receive data over the wired connection and over a wireless connection. The plurality of wireless access ports are configured to receive data over the wireless connection from the wireless access port and to send data over the wireless connection to the wired access port. The wireless access ports are further configured to receive and encapsulate first wireless data packets in to first wired data packets based on a wired transmission protocol and encapsulate the first wired data packets into second wireless data packets based on a wireless transmission protocol.Type: GrantFiled: May 26, 2005Date of Patent: September 9, 2008Assignee: Symbol Technologies, Inc.Inventor: Ramesh Sekhar
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Patent number: 7423525Abstract: Methods, systems, and apparatuses to improve an interface between customers and products in warehouse, shopping, and additional environments, including an improved interface with items associated with RFID tags, are described. In an aspect, a product database associated with a merchant is downloaded from a computer system into a mobile device. The downloaded product database is stored. A user interacts with data of the downloaded product database on the mobile device. In a further aspect, a radio frequency identification (RFID) tag is read by the mobile device to determine an identification number corresponding to the RFID tag. The identification number of the RFID tag is transmitted to the computer system. A response from the computer system is received that includes information regarding an item associated with the RFID tag.Type: GrantFiled: July 28, 2005Date of Patent: September 9, 2008Assignee: Symbol Technologies, Inc.Inventor: William R. Bandy