Electronic transmitter having a digital combiner circuit for transmitting multiple digital input signals simultaneously

An electronic transmitter for transmitting multiple digital input signals simultaneously;

• comprising:
• an encoding circuit, which encodes each of said digital input signals and thereby generates a respective sequence of "1" and "0" chips for each input signal, with all of said chip sequences being synchronized in parallel;
• a digital combiner circuit, coupled to said encoding circuit, that generates a signed multi-bit digital signal which indicates the number of "1" chips minus the number of "0" chips that concurrently occur in said synchronized chip sequences;
• said digital combiner circuit including a digital adder circuit which sums concurrent "1" chips in said synchronized chip sequences, a first digital subtracter circuit which subtracts the sum formed by said adder circuit from the total number of said input signals, and a second digital subtracter circuit which subtracts the difference formed by said first binary subtracter circuit from the sum formed by said adder circuit and,
• a modulator circuit, coupled to said digital combiner circuit, which generates a sinusoidal analog signal with a phase and a peak amplitude that respectively indicate the sign and magnitude of said signed multi-bit digital signal.

An electronic transmitter for transmitting multiple digital input signals simultaneously;

• comprising:
• an encoding circuit, which encodes each of said digital input signals and thereby generates a respective sequence of "1" and "0" chips for each input signal, with all of said chip sequences being synchronized in parallel;
• a digital combiner circuit, coupled to said encoding circuit, that generates a signed multi-bit digital signal which indicates the number of "1" chips minus the number of "0" chips that concurrently occur in said synchronized chip sequences;
• said digital combiner circuit including a digital adder circuit which sums concurrent "1" chips in said synchronized chip sequences, and a digital subtracter circuit which subtracts the total number of said input signals from twice the sum formed by said adder circuit and,
• a modulator circuit, coupled to said digital combiner circuit, which generates a sinusoidal analog signal with a phase and a peak amplitude that respectively indicate the sign and magnitude of said signed multi-bit digital signal.

An electronic transmitter for transmitting multiple digital input signals simultaneously;

• comprising:
• an encoding circuit, which encodes each of said digital input signals and thereby generates a respective sequence of "1" and "0" chips for each input signal, with all of said chip sequences being synchronized in parallel;
• a digital combiner circuit, coupled to said encoding circuit, that generates a signed multi-bit digital signal which indicates the number of "1" chips minus the number of "0" chips that concurrently occur in said synchronized chip sequences;
• said digital combiner circuit including a digital adder circuit which sums concurrent "1" chips in said synchronized chip sequences, and a memory circuit coupled to said adder circuit which stores linearly scaled products said number of "1" chips minus said number of "0" chips that concurrently occur in said synchronized chip sequences, and which is addressed by said sum concatenated with a digital control signal which indicates the total number of said input signals;
• and
• a modulator circuit, coupled to said digital combiner circuit, which generates a sinusoidal analog signal with a phase and a peak amplitude that respectively indicate the sign and magnitude of said signed multi-bit digital signal.