James Daniel Wagner
Engineers at Lk Crk Dr, Tangent, OR

2006018, Aug 24, 2006

Feb 11, 2005

11/055886

James Wagner - Tangent OR, US

PSC Scanning, Inc. - Eugene OR

G08B 13/14

340572700

There is a data reader includes a housing, a radio frequency identification (RFID interrogator for detecting various amounts of data and processing circuitry connected to an output of the RFID interrogator. The data reader further includes a communications unit connected to the output with a loop antenna connected to the communications unit. The loop directional antenna provides gain and directionality when transmitting and receiving an electromagnetic signal. There is a multiple technology data reader includes an optical data reader having a housing, a photosensitive detector within the housing, and an optical collector for directing light onto the photosensitive detector. Processing circuitry is connected to an output of the photosensitive detector. In addition, the multiple technology data reader has radio frequency identification (RFID) interrogator for detecting data. There is a computer but connected to a communications unit, wherein the communications unit is connected to the optical data reader and the RFID interrogator. A loop directional antenna means is connected to the communication unit providing gain and directionality when transmitting and receiving a communications signal.

2006017, Aug 10, 2006

Feb 10, 2005

11/055960

James Wagner - Tangent OR, US
Kurt Steinke - Springfield OR, US
Alan Bradley - Eugene OR, US
Patrick Watkins - Eugene OR, US

PSC Scanning, Inc. - Eugene OR

H04Q 5/22

340010200, 340010300, 340572100

A preferred embodiment is directed to a method of RFID power ramping for tag singulation that includes activating the trigger control of an RFID reader for engaging power to begin reading RFID tags. A user may take a first reading at a low power level of a volume around the RFID reader establishing a first read volume. If the user does not detect a particular RFID tag, the user may then increase the transmitting power from the RFID reader to a second higher power level obtaining a second reading of RFID tags in a second read volume. The user may once again increase the transmitting power from the RFID reader to a third higher power level obtaining a third reading of RFID tags in a third reading volume. Increasing the RFID transmitting power is repeated until there is a final read volume where the operator reads and recognizes the detected RFID tag. The final step includes deactivating the trigger control of the RFID reader after reading the desired RFID tag.

7515051, Apr 7, 2009

Feb 17, 2006

11/356887

James D. Wagner - Tangent OR, US
Mark R. Cohen - Elmira OR, US
Clarke W. McAllister - Eugene OR, US

Datalogic Mobile, Inc. - Eugene OR

G08B 13/14

3405727, 3405724, 3405721

Radio Frequency Identification (RFID) antennas systems and methods that are less sensitive to orientation. One example includes an interrogator having a radio frequency transceiver, a first linearly polarized antenna in electrical communication with the transceiver, and a second linearly polarized antenna in electrical communication with the transceiver, the second antenna having a polarization in a direction substantially perpendicular to the first antenna; a control circuit is in electrical communication with the transceiver and with the first and second antennas, the control circuit operable to switch between interrogating with the first antenna and interrogating with the second antenna, and an RFID decoder is coupled to an output of the transceiver to decode an interrogated electromagnetic signal from a tag.

7405662, Jul 29, 2008

Jun 14, 2006

11/453266

Kurt E. Steinke - Seattle WA, US
James D. Wagner - Tangent OR, US

Datalogic Mobile, Inc. - Eugene OR

G08B 13/14

3405724, 3405721, 342118

Disclosed are embodiments of methods, systems, and apparatus for ranging or determining a distance between a reader and a wireless tag. In one embodiment, a query signal is transmitted from the reader to the wireless tag. The carrier signal from the reader may then be modulated and the modulated signal transmitted from the reader during at least a portion of a response period for the wireless tag. A modulated backscatter response from the wireless tag is received at the reader and is used to calculate a distance between the reader and the wireless tag.

2006021, Sep 28, 2006

Feb 10, 2006

11/351405

James Wagner - Tangent OR, US
Kurt Steinke - Seattle WA, US

PSC Scanning, Inc. - Eugene OR

H04Q 5/22

340010200, 340010340

Disclosed are embodiments of methods, systems, and apparatus for singulating wireless tags. In one embodiment, a power ramping method is provided for tag singulation. This embodiment involves activating a control of an RFID reader for engaging power to begin reading RFID tags. The first reading is taken at a relatively low transmitting power level. If an RFID tag is not detected at the first power level, the power from the RFID reader is increased to a second higher power level. Increasing the transmitting power may be repeated until there is a final read volume where a single RFID tag, or a select number of such tags, is detected. Certain embodiments may provide for ramping the power down as well as up, so that if multiple tags are detected and only the closest tag is desired to be detected, tags can be excluded systematically from the read volume until only a single tag remains.