Magnetic radio frequency tag reader for use with a hand-held terminal

• US 5,280,159 A
• Filed: 05/07/1992
• Issued: 01/18/1994
• Est. Priority Date: 03/09/1989
• Status: Expired due to Term

• Current Assignee: Intermec IP Corporation (Honeywell International Inc.)
• Original Assignee: Norand Corporation (Baker Hughes Company)
• Inventors: Warner, Lloyd D., Schultz, Darald R.
• Primary Examiner(s): PITTS, HAROLD I
• Application Number:
  US07/880,114
• Time in Patent Office: 621 Days
• Field of Search: 235/380, 235/382, 235/472
• US Class Current: 235/382
• CPC Class Codes: G06K 17/0022 arrangements or provisious for transferring data to distant stations, e.g. from a sensing device "transfer between computer elements G06F13/00 "; data-transmission H04L
• CPC Class Codes: G06K 2207/1011 Aiming
• CPC Class Codes: G06K 7/10346 the antenna being of the far field type, e.g. HF types or dipoles
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners

Abstract

A magnetic RF tag reader is shown for reading RF tags which transmit information to the receiver when the RF tag is disposed in a low frequency magnetic field. The reader is of a size which can be hand-held and is operatively attached to a separate hand-held terminal for receiving, processing and storing information. The hand-held terminal can be used independently for other purposes when it is not operably connected to the RF tag reader. A regular bar code reader can also be attached to the hand-held terminal means if desired.

Claims

1. Apparatus comprising:

hand held terminal means for receiving, processing and storing information;

radio frequency receiver means for receiving information;

transponder means for transmitting information in a radio frequency form to said receiver means when said transponder means is disposed in a low frequency magnetic field;

magnetic means for selectively emitting a low frequency magnetic field when it is desired to activate said transponder means;

means for operatively attaching said receiver means to said hand held terminal means; and

hand held pistol shaped housing means for holding said magnetic means and said radio frequency receiver means whereby said hand held pistol shaped housing means can be pointed at said transponder means, said magnetic means can be activated and said radio frequency receiver means can receive a signal from said transponder means.

2. The apparatus of claim 1 including hand held bar code reader means operatively attached to said hand held terminal means for reading bar code information and transmitting said bar code information to said hand held terminal means.

3. The apparatus of claim 2 wherein said radio frequency receiver means includes a second antenna means disposed within said hand held pistol shaped housing means for receiving radio frequency information from said transponder means.

4. The apparatus of claim 1 wherein said attaching means comprises a tethered connection member connected at one end to said hand held terminal means and at the other end to said hand held pistol shaped housing means.

5. The apparatus of claim 1 including trigger means operatively attached to said hand held pistol shaped housing means for permitting said magnetic means to be activated with one finger of a hand grasping said hand held pistol shaped housing means.

6. The apparatus of claim 5 including laser sight means operatively attached to said hand held pistol shaped housing means for emitting a laser beam of light toward said transponder means to inform the user thereof whether said hand held pistol shaped housing is in a proper orientation with respect to said transponder means for activation of said magnetic means to activate said transponder means and for said radio frequency receiver means to receive a signal from said transponder means.

7. The apparatus of claim 6 wherein said trigger means includes means for selectively activating and deactivating said laser sight means.

8. The apparatus of claim 7 including battery means disposed within said hand held pistol shaped housing means for providing power to said magnetic means and to said radio frequency receiver means.

9. The apparatus of claim 1 including a radio frequency transceiver means for receiving and transmitting information to and from said hand held terminal means.

10. The apparatus of claim 9 including key means for manually entering information into said hand held terminal means.

11. The apparatus of claim 1 wherein said transponder means is of a passive type.

12. A hand-held RF label reader for receiving RF transponder label data from an RF label reader, comprising:

(a) a generally pistol shaped housing having,

(1) a barrel,

(2) a grip depending from said barrel, and

(3) activating trigger associated with said grip;

(b) receiver means for receiving RF label data transponder from RF labels, said receiver means associated with the barrel of said housing; and

(c) means for indicating at least one of two conditions indicative of the quality of the reception of the transponder label data.

13. The reader of claim 12, further comprising means for aiming said receiving means at an RF label.

14. The reader of claim 12, wherein said activating trigger includes means for activating said sight means and means for activating said receiver means.