Symbol Technologies, LLC

Other

Velox Semiconductor Corporation

Daniel R McGlynn

Jerome Swartz

Edward D Barkan

Joseph M Katz

Paul Dvorkis

Ynjiun P Wang

David P Goren

Yajun Li

Joseph Campanelli

Robert E Beach

Fred P Heiman

Stephen Jay Shellhammer

Boris Metlitsky

Raj Bridgelall

Simon Bard

Joel Kahn

Joseph Cai

Richard Isaac

William D Snyder

Joseph DeVita

Robert Durst

Reuven Shapira

Mark J Krichever

Miklos Stern

Glenn S Spitz

Bryan S Shelton

Boris Peres

Gregg A Marwin

Varl Gurevich

A wireless local area network for digital radio communication between remote devices and a PBX telephone system, wherein the remote devices can access and use the voice message features in the PBX and the data bases on a host computer and servers. A wireless phone is provided for voice and data communication through the PBX or a CO telephone line with remote locations or the Internet using digital data packets and standard Internet Protocol. In a preferred embodiment of the invention, the remote device is a cash register comprising a bar code scanner and a phone. Radio communication between the register and a host computer is carried out over two channels, a first channel for data communication and a second channel for voice communication.

System for digital radio communication between a wireless LAN and a PBX

A converter is provided having an AC input and a DC output. The converter includes a rectifier that receives the AC input and that provides a rectifier output, a series connected current to magnetic field energy storage device and current interrupter connected across the rectifier output and a series connected gallium nitride diode and output charge storage device connected between a midpoint of the series connected magnetic field energy storage device and current interrupter and a terminal of the rectifier output and wherein the converter is characterized in not needing a transient voltage suppression circuit.

GaN semiconductor based voltage conversion device

A portable terminal carried by a user and in wireless communication with a local area network for displaying data based on the physical location of the user. A plurality of network nodes is distributed throughout a venue, such as a shopping mall or a store, in which products are offered for sale. The location of the user is determined by the location of the access node in communication with the terminal. The data may include a recommendation to purchase the product.

Arrangement for and method of expediting transactions based on a customer's proximity to the transactions

System for digital radio communication between a wireless lan and a PBX

An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (,). The system includes an optical scanner (,) for scanning beam of light over the spatial distribution of indicia (,) and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer (,), responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer (,) converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit (,) for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter (,) is also disclosed. The enhancement filter (,) modifies pulses produced by a differentiator circuit (,) used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit (,).

Optical scanners

An optical scanner with plural scan beam generation. Scan angle stress is configured in the beam generation.

An optical scanner for reading indicia of variable light reflectivity, such as bar code symbols, having a light source for producing a light beam for scanning a target; a sensor for collecting the reflected light from the target; and various light collection systems, including a louver formed from an array of thin slats positioned adjacent to the sensor so that light directed along substantially only one angle reaches the sensor, as well as imaging/diffusing optical systems.

Light collection systems in electro-optical readers

A range finder for use with a bar code scanner. An image of a scan line is detected by a sensor array. Distance from the scanner to the bar code symbol is determined from the length of the detected scan line image.

Apparatus and method for determining a distance to a target

A scanning device incorporates a vertical cavity surface emitting laser (VCSEL). The laser diode may be mounted directly on an Si substrate which is adapted for movement to produce a scan pattern. A collimating lens may be directly mounted on the emitting surface of the laser. A plurality of lasers may be mounted on the substrate and operated in sequence without movement of the substrate to produce the effect of a scan. The scanning device emits visible or invisible light towards a target such as a bar code and a detector (mounted on the same or an adjacent substrate) senses the light reflected by the target to produce data which is decoded for further processing. A VCSEL uses low current and emits light from a relatively large area so that a relatively large amount of light is emitted for relatively small heat generation.

Bar code readers using surface emitting laser diode

A bar code reader for reading a symbol located at a distance from the laser comprises an array of groups of reading elements and an array of selectable liquid crystal elements. Each of the groups of reading elements have an associated predetermined operating focal distance. At least one liquid crystal element corresponds to each group of reading elements. In the bar code reader, a device activates a selected liquid crystal element to transmit light to a selected group of reading elements. In this way, the reading elements can operate at a predetermined, fixed operating focal distance.

Bar code readers having selectable optical elements

A reader generates a scanning beam for reading a bar code symbol on a selected item. The reader includes a motion sensor or software program for discriminating between the selected item and other items also having bar code symbols thereon. The motion sensor or software program for discriminating between the items may discriminate between an item swept past the reader and stationary items, or an item moved into the field of view of the reader, held stationary and moved out of the field of view and stationary or moving items or between an item placed within a predetermined distance range and other items.

Bar code reader with means for discriminating between a moving indicia

A record carrier (e.g., an identification card) of the type containing machine-readable representations of data, wherein the record carrier comprises a substrate, a first pattern of machine-readable indicia applied to one surface of the substrate, and a hologram containing machine-readable data disposed on one surface of the substrate. The information represented by the machine-readable indicia and the machine-readable data are related to one another so as to enable a user to verify the authenticity of the record carrier by comparison of the indicia and the data.

Machine readable record carrier with hologram

A bar code reader system includes a record, a bar code reader, a decoder, a processor, a transferring element, and a printer. The record includes a substrate with an information area containing first data removably encoded on the substrate in an error-correctable machine readable format and text. The bar code reader converts the first encoded data from the record into electrical signals which are decoded by the decoder. The processor encodes second data entered through a keyboard, and generates transfer drive signals for controlling the transfer of the second encoded data onto the record. The transferring element detects the presence of the first encoded data on the record, and in response to the drive signals when the first encoded data is present on the record, subjects the record to an erasing operation to remove the first encoded data. The printer then prints the second encoded data on the record.

Growing community of inventors

Brooklyn, NY, United States of America

Daniel R McGlynn