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US 5,668,872 AGranted
Information processing method and system
AssigneeCanon Kabushiki Kaisha
InventorsHideki Morishima, Kiyonobu Endo, Susumu Matsumura, Hiroaki Hoshi, Koyo Hasegawa, Masakuni Yamamoto, Eiji Yamaguchi, Ichiro Iida
Life of this patent
Estimating the term…
Abstract
An information processing method and system in which coded or incomplete information is transmitted through a space or through a predetermined transmission line and is received by a user. A program or data needed to demodulate the information is read out from a recording medium, and the received information is demodulated using the read out program or data.
Claims19
An information processing system comprising:
- receiving means for receiving transmitted information, the information being coded or incomplete and in a non-usable form;
- a self-contained recording medium, decoding information needed to demodulate the received information being pre-recorded on said self-contained recording medium, said self-contained recording medium having a first area in which the received information is to be written and a second area in which the decoding information is pre-recorded;
- writing means for writing the information received by said receiving means in the first area of said recording medium, the received information remaining coded or incomplete and in a non-usable form;
- reading means for reading out the pre-recorded decoding information from said recording medium;
- and
- demodulating means for converting the information received by said receiving means to a usable form using the pre-recorded decoding information read out by said reading means.
3 more elements
An information processing method comprising the steps of:
- providing a self-contained recording medium having pre-recorded decoding information needed to demodulate coded or incomplete information, which is in a non-usable form, the decoding information being pre-recorded in a first area of the recording medium;
- receiving transmitted information, the received information being coded or incomplete and in a non-usable form;
- reading out the pre-recorded decoding information from the first area of the self-contained recording medium;
- writing the received information still being coded or incomplete and in a non-usable form onto a second area of the self-contained recording medium;
- and
- demodulating the received information by using the read out pre-recorded decoding information to convert the received information to a usable form.
3 more elements
A method of distributing information, said method comprising the steps of:
- transmitting a plurality of groups of information to a plurality of users, the groups of information being respectively coded in different code systems and being in a non-usable form;
- distributing a plurality of kinds of disks respectively corresponding to the plurality of groups of information, decoding information needed to demodulate the respective groups of information being respectively pre-recorded in the plurality of kinds of disks;
- writing the plurality of groups of transmitted information in the non-usable form on respective disks of the plurality of kinds of disks;
- reading out the pre-recorded decoding information recorded in one of the disks;
- and
- demodulating the group of information corresponding to the one disk by using the read out pre-recorded decoding information to convert the group of information to a usable form.
3 more elements
An information processing system comprising:
- a host computer, said host computer providing coded or incomplete software in a non-usable form;
- a first modem for transmitting the coded or incomplete software provided by said host computer through a telephone line;
- a second modem for receiving the coded or incomplete software transmitted through the telephone line;
- a self-contained recording medium, decoding information needed to demodulate the coded or incomplete software being pre-recorded on said self-contained recording medium, said recording medium having a first area in which the software is to be written and a second area in which the decoding information is pre-recorded;
- a driving unit for reading out the pre-recorded decoding information from said self-contained recording medium, said driving unit writing the software received by said second modem in the first area of said self-contained recording medium, the received software still being coded or incomplete and in a non-usable form;
- and
- a personal computer for demodulating the software received by said second modem by using the pre-recorded decoding information read out by said driving unit to convert the software to a usable form.
4 more elements
An information processing method comprising the steps of:
- receiving coded or incomplete software transmitted in a non-usable form from a host computer through a telephone line;
- reading out pre-recorded decoding information needed to demodulate the coded or incomplete software from a first area of a self-contained recording medium;
- writing the received software still being coded or incomplete and in the non-usable form in a second area of the self-contained recording medium;
- and
- demodulating the received software by using the read out pre-recorded decoding information to convert the received software to a usable form.
2 more elements
A system for receiving a coded or incomplete broadcast signal, said system comprising:
- a receiving circuit for receiving a coded or incomplete broadcast signal in a non-usable form;
- a self-contained recording medium, software needed to demodulate the coded or incomplete broadcast signal being pre-recorded in said self-contained recording medium, said recording medium having a first area in which the broadcast signal is to be written and a second area in which the software is pre-recorded;
- a driving unit for reading out the pre-recorded software from said self-contained recording medium, said driving unit writing the broadcast signal received by said receiving circuit in the first area of said self-contained recording medium, the broadcast signal still being coded or incomplete and in a non-usable form;
- and
- a processing circuit for demodulating the broadcast signal received by said receiving circuit by using the pre-recorded software read out by said driving unit to transform the coded or incomplete broadcast signal to a usable form.
2 more elements
A method for receiving a coded or incomplete broadcast signal, said method comprising the steps of:
- receiving a coded or incomplete broadcast signal in a non-usable form;
- reading out pre-recorded software needed to demodulate the coded or incomplete broadcast signal from a first area of a self-contained recording medium;
- writing the received broadcast signal still being coded or incomplete and in the non-usable form in a second area of the self-contained recording medium;
- and
- demodulating the received broadcast signal by using the read out pre-recorded software to convert the coded broadcast signal to a usable form.
2 more elements
An information processing system comprising:
- receiving means for receiving transmitted information, the information being coded or incomplete and in a non-usable form;
- a disk, decoding information needed to demodulate the received information being pre-recorded on said disk;
- writing means for writing the received information in the non-usable form on said disk;
- reading means for reading out the pre-recorded decoding information from said disk;
- and
- demodulating means for converting the pre-recorded information received by said receiving means to a usable form using the pre-recorded decoding information read out by said reading means.
3 more elements
An information processing system comprising:
- a host computer, said host computer providing coded or incomplete software in a non-usable form;
- a first modem for transmitting the software provided by said host computer through a telephone line;
- a second modem for receiving the coded or incomplete software transmitted through the telephone line in the non-usable form;
- a disk, decoding information needed to demodulate the coded or incomplete software being pre-recorded on said disk in the non-usable form;
- writing means for writing the received software on said disk in the non-usable form;
- a driving unit for reading out the pre-recorded decoding information from said disk;
- and
- a personal computer for demodulating the software received by said second modem by using the pre-recorded decoding information read out by said driving unit to convert the software to a usable form.
5 more elements
A system for receiving a coded or incomplete broadcast signal in a non-usable form, said system comprising:
- a receiving circuit for receiving a coded or incomplete broadcast signal in a non-usable form;
- a disk, software needed to demodulate the coded or incomplete broadcast signal being pre-recorded in said disk;
- writing means for writing the received broadcast signal on said disk, in the non-usable form;
- a driving unit for reading out the pre-recorded software from said disk;
- and
- a processing circuit for demodulating the broadcast signal received by said receiving circuit by using the pre-recorded software read out by said driving unit to transform the coded broadcast signal to a usable form.
3 more elements
Dependencies are inferred from the claim text.