Antenna device and communication device using antenna device

Details Antenna device and communication device using antenna device Antenna device and communication device using antenna device

2007-04-03

2007-04-03

Chen, Shih-Chao (Department: 2821)

Registers

Records

Conductive

C343S746000

Reexamination Certificate

active

10496636

ABSTRACT:
An antenna device (60) is provided that is used in a recorder and/or writer destined for writing and reading data to and from a contactless IC card (1). The antenna device (60) includes a loop coil (61) that radiates a magnetic field, magnetically couples with a loop coil (4) provided in the IC card (1), and sends and receives data to and from the IC card (1). The loop coil (61) is formed asymmetric for the winding sections thereof opposite to each other across the center of the loop coil (61) to be different in interval from each other.

REFERENCES:
patent: 5424527 (1995-06-01), Takahira
patent: 5821525 (1998-10-01), Takebayashi
patent: 6373708 (2002-04-01), Ando et al.
patent: 6591494 (2003-07-01), Okamura et al.
patent: 6593167 (2003-07-01), Dobashi et al.
patent: 6597323 (2003-07-01), Teshirogi et al.
patent: 6879297 (2005-04-01), Brown et al.
patent: 6879298 (2005-04-01), Zarro et al.
patent: 7000837 (2006-02-01), Akiho et al.
patent: 2001/0000659 (2001-05-01), Hayashi et al.
patent: 2003/0016506 (2003-01-01), Fujii
patent: 19542900 (1995-11-01), None
patent: 09139698 (1995-11-01), None
patent: 10-157353 (1998-06-01), None
patent: 10-157353 (1998-06-01), None
patent: 2000-162314 (2000-06-01), None
patent: 2000-162314 (2000-06-01), None

Affiliated with

Also associated with

Rating

Antenna device and communication device using antenna device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna device and communication device using antenna device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna device and communication device using antenna device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3773200