Communication system

Details Communication system Communication system

2004-02-27

2008-10-28

Crosland, Donnie L (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S552000, C340S561000, C340S572100, C340S572700

Reexamination Certificate

active

07443290

ABSTRACT:
The apparatus enhances the degree of freedom in communication using a quasi-electrostatic field. A card device3(a ticket checking and collecting machine2) side in a communication system1, a quasi-electrostatic field according to an identification signal S5(a notification signal S9) modulated according to identification information S4(notification information S8) is generated from an internal electrode8(a side-surface electrode7) to electrify a human body. At the ticket checking and collecting machine2(the card device3), displacement of the strength of a information-transmission quasi-electrostatic field DTD which is isotropically formed in the neighborhood of the human body is detected via the side-surface electrode7(the internal electrode8) and a FET28(a FET37) sequentially, and based on the detection result, the identification information S4(the notification information S8) is demodulated. Sending and receiving of information without directional restrictions in the neighborhood of the human body, freedom in communication can be enhanced.

REFERENCES:
patent: 5914701 (1999-06-01), Gersheneld et al.
patent: 6147605 (2000-11-01), Vega et al.
patent: 6223018 (2001-04-01), Fukumoto et al.
patent: 6275681 (2001-08-01), Vega et al.
patent: 6336031 (2002-01-01), Schyndel
patent: 6611199 (2003-08-01), Geiszler et al.
patent: 6992565 (2006-01-01), Giesler
patent: 2002/0153882 (2002-10-01), Grimes et al.
patent: 9608465-0 (1998-12-01), None
patent: 696 23 115 (1996-11-01), None
patent: 2 180 767 (1998-02-01), None
patent: 7-170215 (1995-07-01), None
patent: 10-229357 (1998-08-01), None
patent: 11 225119 (1999-08-01), None
patent: 11-509380 (1999-08-01), None
patent: 2002 111602 (2002-04-01), None
patent: 2002 525702 (2002-08-01), None
patent: WO 96/36134 (1996-11-01), None

Affiliated with

Also associated with

Rating

Communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3998253