Information transmission system and method, transmitting apparatus, receiving apparatus, data processing device and data processing method, and recording medium

A method of processing received data for delivery to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• reading an address from a portion of said received data;
• and
• decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices
• wherein a table is searched to determine whether said read address indicates that said portion of said received data is intended for said group or is intended solely for said respective one of said plurality of processing devices, and when said portion of said received data is encrypted, said table is again searched to locate said stored address that coincides with said read address and then a decryption key corresponding to said stored address is retrieved, said decryption key being retrieved only when a stored value associated with said decryption key indicates that said decryption key is in a valid state.

An apparatus for processing received data for delivery to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said apparatus comprising:

• a decoder for reading an address from a portion of said received data, and for decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said decoder determining whether said portion of said received data includes encrypted data, and when said portion of said received data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, said decoder carrying out a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key based on an indicator read from said portion of said received data;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices.

An apparatus for processing received data for delivery to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said apparatus comprising:

• a decoder for reading an address from a portion of said received data, and for decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices
• wherein said decoder searches a table to determine whether said read address indicates that said portion of said received data is intended for said group or is intended solely for said respective one of said plurality of processing devices, and when said portion of said received data is encrypted, said decoder again searches said table to locate said stored address that coincides with said read address and then retrieves a decryption key corresponding to said stored address, and said decoder retrieves said decryption key only when a stored value associated with said decryption key indicates that said decryption key is in a valid state.

A readable medium recorded with instructions for processing received data for delivery to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said instructions comprising:

• reading an address from a portion of said received data;
• and
• decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said decoding step including determining whether said portion of said received data includes encrypted data, and when said portion of said received data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key being carried out based on an indicator read from said portion of said received data;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices.

A method of delivering data to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• receiving transmitted data;
• reading an address from a portion of said received data;
• decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said decoding step including determining whether said portion of said received data includes encrypted data, and when said portion of said received data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key being carried out based on an indicator read from said portion of said received data;
• delivering said decoded data to said respective one of said plurality of processing devices;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices.

An apparatus for delivering data to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said apparatus comprising:

• a receiver for receiving transmitted data;
• a decoder for reading an address from a portion of said received data, decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices, and delivering said decoded data to said respective one of said plurality of processing devices;
• said decoder determining whether said portion of said received data includes encrypted data, and when said portion of said received data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, said decoder carrying out a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key based on an indicator read from said portion of said received data;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices.

A readable medium recorded with instructions for delivering data to a respective one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said instructions comprising:

• receiving transmitted data;
• reading an address from a portion of said received data;
• decoding said portion of said received data to form decoded data when said portion of said received data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said received data is intended solely for said respective one of said plurality of processing devices;
• said decoding step including determining whether said portion of said received data includes encrypted data, and when said portion of said received data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key being carried out based on an indicator read from said portion of said received data;
• delivering said decoded data to said respective one of said plurality of processing devices;
• said portion of said received data being determined to be intended for said group by comparing at least a segment of said read address to a corresponding segment of a stored address that is associated with said group, said segment of said read address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said received data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said read address to said corresponding address of said respective one of said plurality of processing devices.

A method of processing data for transmission to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• encoding at least a portion of said data;
• and
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key.

A method of processing data for transmission to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• encoding at least a portion of said data;
• and
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group
• wherein said encoding step includes encrypting part of said portion of said data using an encryption key associated with said control address and determining whether said encryption key is to be changed from an odd period encryption key to an even period encryption key or from an even period encryption key to an odd period encryption key.

A readable medium recorded with instructions for processing data for transmission to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said instructions comprising:

• encoding at least a portion of said data;
• and
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key.

A method of transmitting data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• encoding at least a portion of said data;
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• and
• transmitting said portion of said data.

An apparatus for transmitting data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said apparatus comprising:

• an encoder for encoding at least a portion of said data and for attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoder encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• and
• a transmitter for transmitting said portion of said data.

A readable medium recorded with instructions for transmitting data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said instructions comprising:

• encoding at least a portion of said data;
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices and being identifiable by a mask sequence associated with said group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• and
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• transmitting said portion of the data.

A method of sending data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said method comprising:

• encoding at least a portion of said data;
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• transmitting said portion of said data;
• receiving said portion of said data;
• reading said control address from said portion of said data;
• decoding said portion of the data to form decoded data when said portion of said data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said data is intended solely for said respective one of said plurality of processing devices;
• and
• said decoding step including determining whether said portion of said data includes encrypted data, and when said portion of said data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key being carried out based on an indicator read from said portion of said data;
• delivering said decoded data to said respective one of said plurality of processing devices;
• said portion of said data being determined to be intended for said group by comparing at least a segment of said control address to a corresponding segment of a stored address that is associated with said group, said segment of said control address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said control address to said corresponding address of said respective one of said plurality of processing devices.

A system for sending data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said system comprising:

• an apparatus for transmitting data, said apparatus comprising:
• an encoder for encoding at least a portion of said data and for attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoder encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• and
• a transmitter for transmitting said portion of the data;
• and
• an apparatus for receiving data, said apparatus comprising:
• a receiver for receiving said portion of said data;
• and
• a decoder for reading said control address from said portion of said data, decoding said portion of the data to form decoded data when said portion of the data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said data is intended solely for said respective one of said plurality of processing devices, and delivering said decoded data to said respective one of said plurality of processing devices;
• said decoder determining whether said portion of said data includes encrypted data, and when said portion of said data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, said decoder carrying out a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key based on an indicator read from said portion of said data;
• said portion of said data being determined to be intended for said group by comparing at least a segment of said control address to a corresponding segment of a stored address that is associated with said group, said segment of said control address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said control address to said corresponding address of said respective one of said plurality of processing devices.

At least one readable medium recorded with instructions for sending data to at least one of a plurality of processing devices, each of said plurality of processing devices having a corresponding address, said instructions comprising:

• encoding at least a portion of said data;
• attaching a control address to said portion of said data, said control address being associated with said corresponding address of a respective one of said plurality of processing devices when said portion of said data is intended solely for said respective one of said plurality of processing devices, at least a segment of said control address being associated with a group of said processing devices when said portion of said data is intended for each of said processing devices in said group;
• said encoding step including encrypting part of said portion of said data using an encryption key associated with said control address, and attaching a flag indicating whether said part of said portion of said data is encrypted using an even period encryption key or is encrypted using an odd period encryption key;
• transmitting said portion of said data;
• receiving said portion of said data;
• reading said control address from said portion of said data;
• decoding said portion of the data to form decoded data when said portion of said data is intended for a group of said processing devices that includes said respective one of said plurality of processing devices or when said portion of said data is intended solely for said respective one of said plurality of processing devices;
• and
• said decoding step including determining whether said portion of said data includes encrypted data, and when said portion of said data includes encrypted data, decrypting said encrypted data using a decryption key that is either a private key or a public key, a determination of whether to decrypt said encrypted data using either an even period decryption key or an odd period decryption key being carried out based on an indicator read from said portion of said data;
• delivering said decoded data to said respective one of said plurality of processing devices;
• said portion of said data being determined to be intended for said group by comparing at least a segment of said control address to a corresponding segment of a stored address that is associated with said group, said segment of said control address and said corresponding segment of said stored address being identified by a stored mask sequence;
• and
• said portion of said data being determined to be intended solely for said respective one of said plurality of processing devices by comparing said control address to said corresponding address of said respective one of said plurality of processing devices.