Spread-spectrum communication apparatus

Claim 2

A spread-spectrum communication apparatus comprising: memory means for storing a value specific to the apparatus; code generating means, which is capable of generating a plurality of codes, for generating one of the plurality of codes selected by the specific value; and spreading means for spreading input data using the code generated by said code generating means.

Claim 3

The apparatus according to claim 1, wherein said memory means is a ROM.

Claim 4

The apparatus according to claim 1, wherein said memory means is a switch representing the specific value.

Claim 5

The apparatus according to claim 1, wherein said code generating means has a ROM and a parallel/serial converter and outputs a code selected by a set address.

Claim 6

The apparatus according to claim 1, wherein said code generating means has a code generator for generating the plurality of codes and a selector, wherein a select signal is generated based upon the specific value and a desired code is selected and outputted from the plurality of codes by the select signal.

Claim 7

A spread-spectrum communication apparatus comprising: receiving means for receiving a signal; memory means for storing a value specific to the apparatus; code generating means, which is capable of a plurality of codes, for generating one of the plurality of code selected by the specific value; and reverse spreading means for reverse-spreading the signal, which has been received by said receiving means, using the code generated by said code generating means.

Claim 8

A spread-spectrum communication apparatus comprising: receiving means for receiving a signal; memory means for storing a value specific to the apparatus; code generating means, which is capable of a plurality of codes, for generating one of the plurality of code selected by the specific value; and reverse spreading means for reverse-spreading the signal, which has been received by said receiving means, using the code generated by said code generating means.

Claim 9

The apparatus according to claim 6, wherein said memory means is a ROM.

Claim 10

The apparatus according to claim 6, wherein said memory means is a switch representing the specific value.

Claim 11

The apparatus according to claim 6, wherein said code generating means has a ROM and a parallel/serial converter and outputs a code selected by the specific value.

Claim 12

The apparatus according to claim 6, wherein said code generating means has a code generator for generating the plurality of codes and a selector, wherein a select signal is generated based upon the specific value and a desired code is selected and outputted from the plurality of codes by the select signal.

Claim 13

A spread-spectrum communication apparatus comprising: generating means for generating codes of a plurality of types; selecting means for selecting a specific code from among the plurality of codes generated by said generating means; and spreading means for spreading a communication signal in dependence upon the specific code selected by said selecting means.

Claim 14

A spread-spectrum communication apparatus comprising: generating means for generating codes of a plurality of types; selecting means for selecting a specific code from among the plurality of codes generated by said generating means; and spreading means for spreading a communication signal in dependence upon the specific code selected by said selecting means.

Claim 15

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: generating means for generating a first code common to each of the terminals and a second code, wherein the second code is selected from among the plurality of codes in accordance with a terminal of a communication party; and spreading means for spreading data, which is transmitted to the terminal of the communication party by the first code and the second code.

Claim 16

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: generating means for generating a first code common to each of the terminals and a second code, wherein the second code is selected from among the plurality of codes in accordance with a terminal of a communication party; and spreading means for spreading data, which is transmitted to the terminal of the communication party by the first code and the second code.

Claim 17

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: receiving means for receiving a signal; generating means for generating a desired code, in accordance with a terminal of a communication party, from among a plurality of codes; and reverse spreading means for reverse spreading the signal, which has been received by said receiving means, by the code generated by said generating means.

Claim 18

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: receiving means for receiving a signal; generating means for generating a desired code, in accordance with a terminal of a communication party, from among a plurality of codes; and reverse spreading means for reverse spreading the signal, which has been received by said receiving means, by the code generated by said generating means.

Claim 19

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: generating means for generating a first code common to each of the terminals and second and third codes, wherein the second and third codes are selected, from among the plurality of codes in accordance with the terminal of a communication partner; spreading means for spreading data, which is transmitted to the terminal of the communication partner, by the first code and the second code; receiving means for receiving a signal; reverse-spreading means for reverse-spreading the signal, which has been received by said receiving means, by the third code.

Claim 20

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: generating means for generating a first code common to each of the terminals and second and third codes, wherein the second and third codes are selected, from among the plurality of codes in accordance with the terminal of a communication partner; spreading means for spreading data, which is transmitted to the terminal of the communication partner, by the first code and the second code; receiving means for receiving a signal; reverse-spreading means for reverse-spreading the signal, which has been received by said receiving means, by the third code.

Claim 21

A spread-spectrum communication apparatus comprising: generating means for generating desired first and second codes in accordance with input data and a fixed code: spreading means for spreading transmission data by the first code generated by said generating means; receiving means for receiving a signal; synchronizing means for synchronizing the fixed code generated by said generating means and the signal received by said receiving means; and reverse-spreading means for reverse-spreading the received signal by the first and second codes generated by said generating means.

Claim 22

A spread-spectrum communication apparatus comprising: generating means for generating desired first and second codes in accordance with input data and a fixed code: spreading means for spreading transmission data by the first code generated by said generating means; receiving means for receiving a signal; synchronizing means for synchronizing the fixed code generated by said generating means and the signal received by said receiving means; and reverse-spreading means for reverse-spreading the received signal by the first and second codes generated by said generating means.

Claim 23

The apparatus according to claim 15, wherein said synchronizing means synchronizes the first code generated by said generating means and the signal received by said receiving means.

Claim 24

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: a terminal interface unit which includes: first generating a means for generating first code common to each of the terminals and desired second and third codes respectively, wherein the second and third codes are selected in accordance with a terminal of a communicating party, from among the plurality of codes, first spreading means for spreading data, which is transmitted to the plurality of terminals, by the first code and the second code, receiving means for receiving a signal, reverse-spreading means for reverse-spreading the signal, which has been received by said receiving means, by the third code; and a terminal unit which includes second generating means for generating fourth, fifth and sixth codes identical with the third, first and second codes respectively in accordance with the input data, second spreading means for spreading transmission data by the fourth code generated by said second generating means, receiving means for receiving a signal, synchronizing means for synchronizing the fifth code generated by said second generating means and the signal received by said receiving means, second reverse-spreading means for reverse-spreading the received signal by the fifth and sixth codes generated by said second generating means.

Claim 25

A spread-spectrum communication apparatus capable of communicating with a plurality of terminals, comprising: a terminal interface unit which includes: first generating a means for generating first code common to each of the terminals and desired second and third codes respectively, wherein the second and third codes are selected in accordance with a terminal of a communicating party, from among the plurality of codes, first spreading means for spreading data, which is transmitted to the plurality of terminals, by the first code and the second code, receiving means for receiving a signal, reverse-spreading means for reverse-spreading the signal, which has been received by said receiving means, by the third code; and a terminal unit which includes second generating means for generating fourth, fifth and sixth codes identical with the third, first and second codes respectively in accordance with the input data, second spreading means for spreading transmission data by the fourth code generated by said second generating means, receiving means for receiving a signal, synchronizing means for synchronizing the fifth code generated by said second generating means and the signal received by said receiving means, second reverse-spreading means for reverse-spreading the received signal by the fifth and sixth codes generated by said second generating means.