Reader/writer device and automatic ticket gate including the...

Details Reader/writer device and automatic ticket gate including the... Reader/writer device and automatic ticket gate including the...

2006-02-28

2006-02-28

Stcyr, Daniel (Department: 2876)

Registers

Records

C235S384000

Reexamination Certificate

active

07004399

ABSTRACT:
An antenna unit prevents a communication error by suppressing side lobes formed by an antenna coil segment of a reader/writer device. The antenna unit (200) is used for a reader/writer device (20) whose signal processing circuits (210) and (220) communicate with an IC card (10) via electromagnetic waves, wherein an antenna coil (100) of the IC card (10) relatively gets close to the antenna unit (200). The antenna unit (200) includes the antenna coil segment which forms a loop antenna (202) on a substrate (201) and conductor segments (203) at the periphery of the antenna coil on substantially the same plane of the antenna coil.

REFERENCES:
patent: 4583099 (1986-04-01), Reilly et al.
patent: 6194993 (2001-02-01), Hayashi et al.
patent: 6353420 (2002-03-01), Chung
patent: 6452806 (2002-09-01), Ikeda et al.
patent: 6922173 (2005-07-01), Anderson
patent: 07-093491 (1995-04-01), None
patent: 10-209737 (1998-08-01), None
patent: 11-213108 (1999-08-01), None
patent: 2001-238883 (2001-09-01), None
Internationali Search Report Jan. 13, 2004.
Supplemental EPO Search Report Oct. 27, 2005.

Affiliated with

Also associated with

Rating

Reader/writer device and automatic ticket gate including the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reader/writer device and automatic ticket gate including the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reader/writer device and automatic ticket gate including the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3658214