Information device system

Details Information device system Information device system

2005-05-24

2005-05-24

Hua, Ly V. (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

C713S166000, C709S230000, C709S204000, C709S227000, C709S220000, C709S218000, C709S201000, C709S246000, C725S009000

Reexamination Certificate

active

06898716

ABSTRACT:
An information device system includes a terminal device and a personal computer. The terminal device has a USB interface and a wireless transceiver circuit. The personal computer has a USB controller which can communicate with the USB interface of the terminal device when they are connected with each other, and also a transceiver circuit adapted to wirelessly communicate with the wireless transceiver circuit of the terminal device. A record medium, which can be read by the personal computer, contains a program for judging what communication state the system is in, a cable communication state, a wireless communication state, or a non-communication state, and restricting processing the personal computer can perform in accordance with the result of the judgment. The degree of restriction is lowest when the system is in the cable communication state, intermediate when the system is in the wireless communication state, and highest when the system is in the non-communication state.

REFERENCES:
patent: 6377805 (2002-04-01), Anvekar et al.
patent: 6691150 (2004-02-01), Yoshino et al.
patent: 6728765 (2004-04-01), Yoshino et al.

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