Method of and system for recording and reproducing information data

• US 6,690,527 B1
• Filed: 11/13/2000
• Issued: 02/10/2004
• Est. Priority Date: 11/30/1999
• Status: Expired due to Fees

• Current Assignee: Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: Shibasaki, Hiroaki, Nonaka, Yoshiya
• Primary Examiner(s): HOLDER, REGINA NEAL
• Application Number:
  US09/709,584
• Time in Patent Office: 1,184 Days
• Field of Search: 360/60, 360/15, 369/47.12, 710/33
• US Class Current: 360/60
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00586 said format change concerning the physical format of the recording medium

Abstract

An information reading/recording method and system are provided for effecting data transmission among a plurality of information processing apparatuses. The method and the system include reading and transmitting information data recorded on a recording medium of one information processing apparatus, in accordance with a transmission request from another information processing apparatus. The method and system also includes rendering ineffective a predetermined unit amount of information data recorded on the recording medium of the one information processing apparatus, at a time a predetermined unit amount of information data has already been transmitted therefrom, and recording the predetermined unit amount of information data that has already been transmitted therefrom. In addition, the method and system include recording the predetermined unit amount of transmitted information data in the another information processing apparatus which has received the transmitted information data.

Claims

1. An information reading and recording method for effecting data transmission among a plurality of information processing apparatuses, said method comprising the steps of:

reading and outwardly transmitting information data recorded on a recording medium of one information processing apparatus, in accordance with a transmission request from another information processing apparatus;

rendering ineffective a predetermined unit amount of information data recorded on the recording medium of said one information processing apparatus, at a time the predetermined unit amount of information data has been transmitted therefrom; and

recording the predetermined unit amount of transmitted information data in said another information processing apparatus which has received the transmitted information data from said one information processing apparatus,

wherein each predetermined unit amount of information data is provided with a transmitted code indicating that said unit amount of information has already been transmitted therefrom, and

wherein when another transmission request is received, the information data is checked for the transmitted code so that it can be determined whether the information to be transmitted should be reproduced, wherein if the check shows that the transmitted code has been provided, it is determined that the information data has already been transmitted so that the data transmission to said plurality of information processing apparatuses, including said another information processing apparatus, is forbidden.

2. A method according to claim 1, wherein said another information processing apparatus is adapted to record the transmitted information data while at the same time reproducing the transmitted information.

3. An information reading system for reading information data from a recording medium of one information processing apparatus and transmitting the information data in accordance with a transmission request from another information processing apparatus, said system comprising:

reading means for reading-out information data from the recording medium in accordance with a control signal;

transmitting means for outwardly transmitting the read-out information data;

storing means for storing transmitted code indicating that the information data has been transmitted, corresponding to each unit amount of information to be transmitted;

detector means for checking for and detecting a transmitted code in the information data when another transmission request is received; and

control means for producing a control signal for controlling the reading of said information data, and for producing another control signal for forbidding the reading of the information data when a corresponding transmitted code has been detected, wherein if the checking shows that the transmitted code has been provided it is determined that the information data has already been transmitted so that the data transmission to all information processing apparatuses, including said another information processing apparatus, is forbidden.

4. An information reading system according to claim 3, wherein the transmitting means for transmitting the read-out information comprises:

confirmation means for confirming whether or not a plurality of different information processing apparatus are allowed to be connected with one another;

an allowance issuing means for issuing an allowance for transmitting information data when it has been confirmed by the confirmation means that the plurality of different information processing apparatus are all legally connected with one another.

5. An information reading system according to claim 4, wherein said confirmation means is provided for confirming whether or not a plurality of different information processing apparatus are allowed to be connected with one another for exchanging predetermined data in accordance with a predetermined protocol.

6. An information reading system according to claim 4, wherein said allowance issuing means is provided for issuing an allowance for transmitting information data when it has been confirmed by the confirmation means that the plurality of different information processing apparatus are all legally connected with one another for exchanging predetermined data in accordance with a predetermined protocol.

7. An information recording system adapted to record information containing transmitted code corresponding to information data to be transmitted, said system comprising:

determining means for determining whether or not there is existing transmitted code corresponding to transmitted information data;

recording means for recording the transmitted information data when it is determined by the determining means that there is not existing said transmitted code, and for erasing the transmitted code when it is determined that there is existing said transmitted code.

8. An information recording system according to claim 7, wherein said recording means includes:

confirmation means for confirming whether or not a plurality of different information processing apparatus are allowed to be connected with one another;

an allowance issuing means for issuing an allowance for transmitting information data when it has been confirmed by the confirmation means that the plurality of different information processing apparatus are all legally connected with one another.

9. An information reading system according to claim 8, wherein said confirmation means is provided for confirming whether or not a plurality of different information processing apparatus are allowed to be connected with one another for exchanging predetermined data in accordance with a predetermined protocol.

10. An information reading system according to claim 8, wherein said allowance issuing means is provided for issuing an allowance for transmitting information data when it has been confirmed by the confirmation means that the plurality of different information processing apparatus are all legally connected with one another for exchanging predetermined data in accordance with a predetermined protocol.