초록 ▼

Digital data is encoded using a modulus m converter to produce fractionally encoded words, where m is the nearest integer larger than 2.sup.c and c is a noninteger. The fractionally encoded words are mapped into a symbol constellation having m symbols to produce a two dimensional data signal. The da

Digital data is encoded using a modulus m converter to produce fractionally encoded words, where m is the nearest integer larger than 2.sup.c and c is a noninteger. The fractionally encoded words are mapped into a symbol constellation having m symbols to produce a two dimensional data signal. The data signal is added to a two dimensional analog signal, which was obtained by encoding an input analog signal, to produce a combined two dimensional signal. The combined signal is modulated using QAM and then transmitted over a communication channel.

대표청구항 ▼

[ We claim:] [12.] A system for transmitting data, comprising:a means for mapping a number of data bits a first symbol constellation having a first number of symbols to produce a first data signal;a means for mapping an analog signal into a second symbol constellation having a second number of symbo

[ We claim:] [12.] A system for transmitting data, comprising:a means for mapping a number of data bits a first symbol constellation having a first number of symbols to produce a first data signal;a means for mapping an analog signal into a second symbol constellation having a second number of symbols to produce a second data signal;a means for adding said first data signal to said second data signal to form a combined signal; anda means for transmitting said combined signal.