Data communication card, program and computer readable recording media

• US 20080020799A1
• Filed: 03/30/2007
• Published: 01/24/2008
• Est. Priority Date: 05/29/2006
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Sudou, Shigeyuki, Itamiya, Takashi
• Application Number:
  US11/729,973
• Publication Number:
  US 20080020799A1
• Time in Patent Office: Days
• US Class Current: 455/558
• CPC Class Codes: G06F 1/10 Distribution of clock signals , e.g. skew
• CPC Class Codes: G06F 1/1698 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone details of antennas disposed inside a computer H01Q1/2266
• CPC Class Codes: H04B 1/3816 Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 9/14 using a plurality of keys or algorithms

Abstract

A notebook computer transmits a distribution. confirmation request including a content attribute. A data communication card performs a matching test for the attribute and notifies of a matching result. When a reservation receiving application requests to start reservation receiving, the data communication card synchronizes with a channel for broadcast to start transferring received data to the notebook computer, and switches a state display to STAND-BY state 2. The reservation receiving application sends a receiving end request upon detection of end of the content. The data communication card stops receiving the broadcast channel and returns the state display to STAND-BY state 1.

Claims

1. A data communication card connected to a computer to connect the computer to a base station of a mobile communication system, said data communication card comprising a display for differentially displaying:

a first STAND-BY state of waiting for a call from said base station;

a second STAND-BY state of receiving content by a downlink for broadcast from said base station; and

a connection state of activating a communication channel exclusively assigned to communicate with said base station.

2. The data communication card according to claim 1,

wherein said display displays that said data communication card is outside a service area as a further different state.

3. A program for causing a computer to which a data communication card for connection with a base station of a mobile communication system is connected, to function as:

a card control section for obtaining time from said base station via said data communication card; and

an internal clock correction section for correcting an internal clock of said computer to said time.

4. A computer readable recording medium on which a program is recorded to cause a computer to which a data communication card for connection with a base station of a mobile communication system is connected, to function as:

a card control section for obtaining time from said base station via said data communication card; and

an internal clock correction section for correcting an internal clock of said computer to said time.

5. A program for causing a computer to which a data communication card for connection with a base station of a mobile communication system is connected, to function as:

a card control section for receiving encrypted management information from said data communication card;

a management information decoding section for decoding said encrypted management information received by said data communication card; and

a content decoding section for decoding encrypted content by a key included in the management information decoded by said management information decoding section.

6. A computer readable recording medium on which a program is recorded to cause a computer to which a data communication card for connection with a base station of a mobile communication system is connected, to function as:

a card control section for receiving encrypted management information from said data communication card;

a management information decoding section for decoding said encrypted management information received by said card control section; and

a content decoding section for decoding encrypted content by a key included in the user management information decoded by said management information decoding section.