Identification card with RF downlink capability

Details Identification card with RF downlink capability Identification card with RF downlink capability

1994-05-31

1996-01-16

Hajec, Donald T.

Registers

Records

Conductive

235384, G06K 1606, G07B 1502

Patent

active

054849977

ABSTRACT:
An Integrated Circuit (IC) card is powered by an array of photovoltaic cells with an Electrically Erasable Programmable Read Only Memory (EEPROM) with associated electronic to read the EEPROM and generate a serial bit stream that modulates a Frequency Shift Keying (FSK) RF system employing a Dielectric Resonant Oscillator (DRO) and a matched dipole antenna. The IC card is totally passive and derives its energy from an external source of radiant energy upon the array of photovoltaic cells resident in the IC card. The IC card is capable of remote interrogation which enables the IC card to be used for traffic and personnel monitoring as well as credit card applications.

REFERENCES:
patent: 3090042 (1962-01-01), Kleist et al.
patent: 4149127 (1979-04-01), Murakami et al.
patent: 4575621 (1986-03-01), Dreifus
patent: 4600829 (1986-07-01), Walton
patent: 4650981 (1987-03-01), Foletta
patent: 4701601 (1987-10-01), Francini et al.
patent: 4707669 (1987-11-01), Mekata et al.
patent: 4791283 (1988-12-01), Burkhardt
patent: 4912471 (1990-03-01), Tyburski et al.
patent: 4916296 (1990-04-01), Streck
patent: 4960983 (1990-10-01), Takesi
patent: 5180996 (1993-01-01), Shiga
patent: 5187451 (1993-02-01), Nakamoto et al.
patent: 5200600 (1993-06-01), Shinagawa
patent: 5212373 (1993-05-01), Fujioka et al.
patent: 5412192 (1995-05-01), Hoss
patent: 5424724 (1995-06-01), Shieh
John W. Boyles, "The Oscillator as a Reflection Amplifier: an Intuitive Approach to Oscillator Design", Microwave Jr. Jun. 1986 pp. 83-98.
Philip G. Wilson, "An Easy to Use FET DRO Design Procedure Suited to Most CAD programs", Jan. 1989 IEEE MTT-S Digest, pp. 1033-1036.
Guillermo Gonzalez, "Microwave Transistor Amplifiers; Analysis and Design", Prentice Hall, Mar. 1984, pp. 194-214.

Affiliated with

Also associated with

Rating

Identification card with RF downlink capability does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-311089