Keying notches for side contacts on a thin form factor computer

Details Keying notches for side contacts on a thin form factor computer Keying notches for side contacts on a thin form factor computer

1994-04-28

1997-04-08

Shah, Alpesh M.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

395800, 361737, G06F 1300

Patent

active

056196601

ABSTRACT:
An integrated circuit (IC) card and corresponding computer IC card receptacle apparatus is described which provides for enhanced electrical isolation of the IC card's side contacts during insertion, and which provides for enhanced IC card security features. The apparatus includes an IC card containing a side contact located within a recessed keyed notch along a side edge. The apparatus also includes an IC card receptacle containing the corresponding side electrical contact on a keyed control arm. The keyed control arm is keyed for the recessed keyed notch of the IC card, such that the electrical contact on the keyed control arm remains electrically isolated until the IC card is completely inserted into the receptacle. The control arm may be coupled to a locking mechanism so that the IC card is forcibly retained in the IC card receptacle until released. Additional electrical isolation of the IC card receptacle's side contact may provided for by an IC card insertion detector and switch, which keeps the IC card receptacle side contact electrically isolated from the remainder of the computer system until the IC card is detected as being fully inserted.

REFERENCES:
patent: Re34369 (1993-09-01), Darden et al.
patent: 4530069 (1985-07-01), Desrochers
patent: 4695925 (1987-09-01), Kodai et al.
patent: 4811165 (1989-03-01), Currier et al.
patent: 4951280 (1990-08-01), McCool et al.
patent: 5183404 (1993-02-01), Aldous et al.
patent: 5184282 (1993-02-01), Kaneda et al.
patent: 5207586 (1993-05-01), MacGregor et al.
patent: 5272477 (1993-12-01), Tashima et al.
patent: 5285057 (1994-02-01), Murohara
patent: 5296692 (1994-03-01), Shino
patent: 5296850 (1994-03-01), King
patent: 5303121 (1994-04-01), Thornberg
patent: 5313364 (1994-05-01), Omori et al.
No author, PCMCIA, Personal Computer Memory Card International Association PC Card Standard, Release 2.0, 3-13 through 3-26 (Sep. 1991).
No author, PCMCIA Recommended Extensions, Release 1.00, 1-3 through 1-8 (1992).

Affiliated with

Also associated with

Rating

Keying notches for side contacts on a thin form factor computer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keying notches for side contacts on a thin form factor computer , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keying notches for side contacts on a thin form factor computer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2402722