Spread spectrum communication apparatus

A spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, said apparatus comprising:

• determining means for determining a number of communication channels in accordance with a quantity of communication data which is transmitted to a communication partner, wherein the number of communication channels are used for the direct sequence method of the spread spectrum communication;
• selecting means for selecting, from among the plurality of communication channels, the communication channel for use as communication, based on the number of communication channels determined by said determining means;
• and
• communicating means for transmitting the communication data through the communication channels selected by said selecting means.

A control method of a spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communicated partner by using at least one communication channel, comprising the steps of:

• determining a number of communication channels in accordance with a characteristic of the communication partner which receives data from said communication apparatus, wherein the number of communication channels are used for the direct sequence method of spread spectrum communication;
• selecting, from among the plurality of communication channels, the communication channel for use as communication, based on the number of communication channels determined in said determining step;
• and
• transmitting the communication data through the communication channels selected in said selecting step.

A control method of a spread spectrum communication apparatus which has a plurality of a communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, comprising the steps of:

• determining a number of communication channels in accordance with a quantity of communication data which is transmitted to a communication partner, wherein the number of communication channel are used for the direct sequence method of the spread spectrum communication;
• selecting, from among the plurality of communication channels, the communication channel for use as communication, based on the number of communication channels determined in said determining step;
• and
• transmitting the communication data through the communication channels selected in said selecting step.

A spread spectrum communication apparatus comprising:

• judging means for judging a characteristic of the communication partner, on the basis of at least an identification information for identifying the communication partner and a data table for storing the characteristic of the communication partner corresponding to said identification information;
• selecting means for selecting, from among a plurality of spread codes, the spread codes the number of which corresponds to the characteristic of the communication partner judged by said judging means;
• and
• communicating means for communicating with the communication partner by using the spreading code selected by said selecting means.

A spread spectrum communication method comprising:

• a judging step of judging a characteristic of the communication partner, on the basis of at least an identification information for identifying the communication partner and a data table for storing the characteristic of the communication partner corresponding to said identification information;
• a selecting step for selecting, from among a plurality of spreading codes, the spreading codes the number of which corresponds to the characteristic of the communication partner judged in said judging step;
• and
• a communicating steps of communicating with the communication partner by using the spreading code selected in said selecting step.

A spread spectrum communication method comprising:

• a determining step of determining a characteristic of communication data;
• a judging step of judging the number of free spreading codes;
• a selecting step of selecting, from among the plurality of spreading codes, the spreading code for use as communication, based on the characteristic of communication data determined in said determining step and the number of the free spreading codes judged in said judging step;
• and
• a communicating step of communicating by using the spreading codes selected in said selecting step.

A spreading spectrum communication apparatus comprising:

• spreading means for spreading each of color data divided based on a color factor data having a plurality of color factors by using a different spreading code for the each of color data;
• multiplexing means for multiplexing the data being spread respectively by using different spread codes by said spreading means;
• and
• transmitting means for transmitting the data multiplexed by said multiplexing means.

A spreading spectrum communication method comprising the steps of:

• a spreading step of spreading each of color data divided based on a color factor, by using a different spreading code;
• a multiplexing step of multiplexing the data being spread respectively by using different spread codes in spreading step;
• and
• a transmitting step of transmitting the data multiplexed in said multiplexing step.

A spread spectrum communication apparatus comprising:

• receiving means for receiving spread data which was divided based on the color factor and was spread respectively by using different spread codes;
• de-spreading means for de-spreading the received data respectively by using different spreading codes;
• and
• composing means for composing color image data by using the data de-spread by said de-spreading means as a color factor.

A spread spectrum communication method comprising the steps of:

• a receiving step of receiving spread data which was divided based on the color factor and was spread respectively by using different spread codes;
• a de-spreading step of de-spreading the received data respectively by using different spreading codes;
• and
• a composing step of composing color image data by using the data de-spread in said de-spreading step as a color factor.

A spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, said apparatus comprising:

• determining means for determining the number of the communication channels for communicating the spread data in accordance with whether the communication partner is a terminal processing color data or a terminal processing black and white data;
• selecting means for selecting, from among a plurality of communication channels, the communication channels the number of which is determined by said determining means;
• and
• communicating means for communicating with the communication partner through the communication channels selected by said selecting means.

A spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, said apparatus comprising:

• determining means for determining the number of the communication channels for communicating the spread data in accordance with whether the communication partner processes binary image data or multivalue image data;
• selecting means for selecting, from among the plurality of communication channels, the communication channels the number of which is determined by said determining means;
• and
• communicating means for communicating with the communication partner through the communication channels selected by said selecting means.

A control method of a spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, said method comprising:

• a determining step of determining the number of the communication channels for communicating the spread data in accordance with whether the communication partner is a terminal processing color data or a terminal processing black and white data;
• a selecting step of selecting, from among the plurality of communication channels, the communication channels the number of which is determined in said determining step;
• and
• a communicating step of communicating with the communication partner through the communication channels selected in said selecting step.

A control method of a spread spectrum communication apparatus which has a plurality of communication channels for performing a spread spectrum communication by using a wide-band frequency, and performs a data communication with one communication partner by using at least one communication channel, said method comprising:

• a determining step of determining the number of the communication channels for communicating the spread data in accordance with whether the communication partner processes binary image data or multivalue image data;
• a selecting step of selecting, from among the plurality of communication channels, the communication channels the number of which is determined in said determining step;
• and
• a communicating step of communicating with the communication partner through the communication channels selected in said selecting step.