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WO1996031787B1 - Radio frequency identification reader - Google Patents

Radio frequency identification reader

Info

Publication number
WO1996031787B1
WO1996031787B1 PCT/US1996/004032 US9604032W WO9631787B1 WO 1996031787 B1 WO1996031787 B1 WO 1996031787B1 US 9604032 W US9604032 W US 9604032W WO 9631787 B1 WO9631787 B1 WO 9631787B1
Authority
WO
WIPO (PCT)
Prior art keywords
stationary
reader
body portion
antenna
reader unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1996/004032
Other languages
French (fr)
Other versions
WO1996031787A1 (en
Filing date
Publication date
Priority claimed from US08/415,853 external-priority patent/US5621199A/en
Application filed filed Critical
Priority to EP96909857A priority Critical patent/EP0879424B1/en
Priority to DE69614151T priority patent/DE69614151T2/en
Priority to AU59555/96A priority patent/AU5955596A/en
Priority to JP53034496A priority patent/JP3728699B2/en
Publication of WO1996031787A1 publication Critical patent/WO1996031787A1/en
Publication of WO1996031787B1 publication Critical patent/WO1996031787B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

A compact rf reader apparatus (10) integrated into a single compact package structure. In one embodiment, a rotatably adjustable head (18) is mounted on the compact reader body portion (12) containing read/write electronics (60) and an interface controller (68). The rotatably adjustable head contains an antenna (54) and is adapted to direct the antenna in numerous different directions without moving the compact reader body portion (12) of the rf reader. Additionally, in one embodiment, the rf reader unit (10) includes a switching power supply (62) located within the reader body portion (12). The switching power supply (62) is electrically coupled to the read/write electronics (60) and the interface controller (68), and is synchronized with the transmitting frequency of the antenna to prevent interference.

Claims

AMENDED CLAIMS[received by the International Bureau on 25 October 1996 (25.10.96); original claims 1-24 replaced by amended claims 1-20 (3 pages)]
1. A stationary rf reader unit comprising: an rf reader including an rf antenna, a stationary compact reader body portion, said compact reader body portion containing read/write electronics and an interface controller therein, wherein said stationary compact reader body portion is adapted to be mounted on standard identification reader wall mounts, and a rotatably adjustable head mounted to said stationary compact reader body portion such that an rf reader unit is comprised of a single integrated structure, said rotatably adjustable head containing said rf antenna therein and adapted to direct said rf antenna towards a plurality of different directions without moving said stationary compact reader body portion._wherein said rotatably adjustable head is further adapted to being fixed in a selected position such that said rf antenna remains focused in a desired direction.
2. The stationary rf reader unit of Claim 1 wherein said stationary rf reader further includes a switching power supply disposed within said compact reader body portion and electrically coupled to said read/write electronics and said interface controller.
3. The stationary rf reader unit of Claim 2 wherein said switching power supply is synchronized with the transmitting frequency of said rf antenna.
4. The stationary rf reader unit of Claim 1 wherein said rf antenna is further comprised of wire-wrapped ferrite.
5. The stationary rf reader unit of Claim 4 wherein said wire- wrapped ferrite rf antenna is securely potted within said rotatably adjustable head assembly.
6. The stationary rf reader unit of Claim 1 wherein said stationary rf reader unit is liquid-tight.
7. The stationary rf reader unit of Claim 1 wherein said rf reader further includes an O-ring seal between said rotatably adjustable head and said stationary compact reader body portion such the connection between said rotatably adjustable head and said compact reader body portion is liquid-tight. 15
8. The stationary rf reader unit of Claim 1 wherein said compact reader body portion further includes an opening for receiving an interfacing cable into said stationary compact reader body portion.
9. The stationary rf reader unit of Claim 8 wherein said stationary rf reader further includes a gland nut surrounding said opening for receiving said interfacing cable such the connection between said compact reader body portion and said interfacing cable is liquid-tight.
10. The stationary rf reader unit of Claim 8 wherein said compact reader body portion further contains screw terminals therein ' for electrically connecting said interfacing cable to said read/write electronics and said interface controller.
11. The stationary rf reader unit of Claim 1 wherein said interface controller further includes a built-in menu system for selecting product features of said rf reader unit.
12. The stationary rf reader unit of Claim 1 wherein said rf reader is adapted to being connected to a multi-drop bus such that a plurality of said rf reader units can be controlled using a single controlling system.
13. The stationary rf reader unit of Claim 1 wherein said interface controller further includes non-volatile memory for storing configuration parameters of said rf reader unit.
14. A stationary compact rf reader unit integrated into a single package structure comprising: an rf reader including an rf antenna, a stationary reader body portion, said stationary reader body portion containing read/write electronics and an interface controller therein, said stationary reader body portion further including an opening for receiving an interfacing cable into said stationary reader body portion, said stationary reader body portion further containing screw terminals therein for electrically connecting said interfacing cable to said read/write electronics and said interface controller, wherein said stationary reader body portion is adapted to be mounted on standard identification reader wall mounts, a gland nut surrounding said opening for receiving said interfacing cable such the connection between said stationary reader body portion and said interfacing cable is liquid-tight, 16
a rotatably adjustable head mounted to said stationary reader body portion, said rotatably adjustable head containing said rf antenna therein and adapted to direct said rf antenna towards a plurality of different directions without moving said stationary reader body portion, wherein said rotatably adjustable head is further adapted to being fixed in a selected position such that said rf antenna remains focused in a desired direction, an O-ring seal disposed between said rotatably adjustable head and said stationary reader body portion such that the connection between said rotatably adjustable head and said stationary reader body portion is liquid-tight, and a switching power supply electrically disposed within said stationary reader body portion and coupled to said read/write electronics and said interface controller.
15. The stationary rf reader unit of Claim 14 wherein said switching power supply is synchronized with the transmitting frequency of said rf antenna.
16. The stationary rf reader unit of Claim 14 wherein said rf antenna is further comprised of wire-wrapped ferrite.
17. The stationary rf reader unit of Claim 16 wherein said wire- wrapped ferrite rf antenna is securely potted within said rotatably adjustable head assembly.
18. The stationary reader unit of Claim 14 wherein said interface controller further includes a built-in menu system for selecting product features of said rf reader unit.
19. The stationary rf reader unit of Claim 14 wherein said stationary rf reader is adapted to being connected to a multi-drop bus such that a plurality of said rf reader units can be controlled using a single controlling system.
20. The stationary rf reader unit of Claim 14 wherein said interface controller further includes non-volatile memory for storing configuration parameters of said rf reader unit.
PCT/US1996/004032 1995-04-03 1996-03-22 Radio frequency identification reader Ceased WO1996031787A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP96909857A EP0879424B1 (en) 1995-04-03 1996-03-22 Radio frequency identification reader
DE69614151T DE69614151T2 (en) 1995-04-03 1996-03-22 RADIO FREQUENCY IDENTIFICATION READER
AU59555/96A AU5955596A (en) 1995-04-03 1996-03-22 Radio frequency identification reader
JP53034496A JP3728699B2 (en) 1995-04-03 1996-03-22 Radio frequency identification reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/415,853 US5621199A (en) 1995-04-03 1995-04-03 RFID reader
US08/415,853 1995-04-03

Publications (2)

Publication Number Publication Date
WO1996031787A1 WO1996031787A1 (en) 1996-10-10
WO1996031787B1 true WO1996031787B1 (en) 1996-11-28

Family

ID=23647480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/004032 Ceased WO1996031787A1 (en) 1995-04-03 1996-03-22 Radio frequency identification reader

Country Status (7)

Country Link
US (1) US5621199A (en)
EP (1) EP0879424B1 (en)
JP (1) JP3728699B2 (en)
AU (1) AU5955596A (en)
CA (1) CA2217158A1 (en)
DE (1) DE69614151T2 (en)
WO (1) WO1996031787A1 (en)

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