Abstract

An antenna system includes a dielectric substrate, a first dipole antenna element, a second dipole antenna element, a first additional metal element, a second additional metal element, first conductive via elements, and second conductive via elements. The first dipole antenna element and the first additional metal element are disposed on a first surface of the dielectric substrate. The first dipole antenna element includes a first radiation element and a second radiation element. The second dipole antenna element and the second additional metal element are disposed on a second surface of the dielectric substrate. The second dipole antenna element includes a third radiation element and a fourth radiation element. The first additional metal element is coupled through the first conductive via elements to the third radiation element. The second additional metal element is coupled through the second conductive via elements to the first radiation element.

IPC Classes  ?

• H01Q 9/44 - Resonant antennas with a plurality of elements having mutually inclined substantially straight portions
• H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
• H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Abstract

In combination, an RFID antenna array, an RFID tag reader, and a power supply, the foregoing components being adapted to be worn or otherwise borne by a person and be operatively connected so that the power supply powers the reader and the reader energizes the antenna array and receives RFID tag signals through the antenna array while the person passes through an area as the person' s hands and arms are unencumbered by said components.

IPC Classes  ?

• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
• G06K 17/00 - Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups , e.g. automatic card files incorporating conveying and reading operations
• G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
• H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

A system and method for monitoring retail shelf inventory that combines bar code and RFID technologies permit electronic data entry of retail item shelf assignments and real time reporting of item removal fr display/dispensing shelves.

IPC Classes  ?

• G06K 17/00 - Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups , e.g. automatic card files incorporating conveying and reading operations
• G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation

Abstract

An RFID tag monitoring system with multiple reader units each equipped with processing capacity sufficient to enable the unit to operate autonomously under its own command and control as well as to register in its individual memory the identity of all of the items that potentially could be present at any particular time at a zone or zones to which it is assigned as well as the particular zone at which a specific RFID tagged item is found; data compression at the reader units permits timely reporting of inventory to a main computer.

IPC Classes  ?

• G06K 17/00 - Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups , e.g. automatic card files incorporating conveying and reading operations

Abstract

An RFID antenna comprising an elongated structure existing along an axis that is long compared to the signal wavelength and including twin ribbon-like feed lines of electrically conductive material, the feed lines being in a common plane and being uniformly laterally spaced from one another, and a plurality of radiating perturbations associated with the feed lines at a plurality of locations spaced along the feed lines, at each location each feed line has its own individual perturbation or portion of a perturbation.

IPC Classes  ?

• H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
• H01Q 1/24 - Supports; Mounting means by structural association with other equipment or articles with receiving set