System and method for transmitting plural information waveforms over a single communications channel using lincompex techniques
AssigneeLinkPlus Corporation
InventorJ. Howard Leveque
Life of this patent
Estimating the term…
Abstract
At least two information waveforms are transmitted over the same communications channel using Lincompex techniques. Each of the information waveforms are modulated using Lincompex techniques to generate compressed information waveforms and associated control tones. The compressed information waveforms have the same frequency band. The compressed information waveforms and associated control tones are arithmetically combined, and transmitted over a transmission medium. These signals are then received from the transmission medium. A plurality of Lincompex expanders demodulate the received signals using Lincompex techniques and one of the associated control tones.
Claims28
A method for transmitting and receiving information waveforms over a communication medium, comprising the steps of:
- (a) modulating a first information waveform according to Lincompex techniques to generate a first compressed information waveform having an information waveform frequency band and a first control tone having a first control tone frequency band;
- (b) modulating at least a second information waveform according to Lincompex techniques to generate at least a second compressed information waveform having said information waveform frequency band and a second control tone having a second control tone frequency band;
- (c) combining said first compressed information waveform and said first control tone with said second compressed information waveform and said second control tone;
- (d) transmitting output of said step (c) on a transmission medium;
- (e) receiving output of said step (d) from said transmission medium;
- and
- (f) demodulating output of said step (e) according to Lincompex techniques, without preprocessing to establish frame synchronization, using one of said first control tone and said second control tone to recover a respective one of said first information waveform and said second information waveform.
An apparatus for transmitting and receiving information waveforms over a communication medium, comprising:
- a first Lincompex compressor modulating a first information waveform according to Lincompex techniques to generate a first compressed information waveform having an information waveform frequency band and a first control tone having a first control tone frequency band;
- at least a second Lincompex compressor modulating at least a second information waveform according to Lincompex techniques to generate at least a second compressed information waveform having said information waveform frequency band and a second control tone having a second control tone frequency band;
- an arithmetic unit for arithmetically combining said first compressed information waveform and said first control tone with said second compressed information waveform and said second control tone;
- a transmitter transmitting output of said arithmetic unit on a transmission medium;
- a receiver receiving output of said transmitter from said transmission medium;
- and
- at least one Lincompex expander demodulating output of said receiver according to Lincompex techniques, without preprocessing to establish frame synchronization, using one of said first control tone and said second control tone to recover a respective one of said first information waveform and said second information waveform.
A method for transmitting and receiving information waveforms over a communication medium, consisting essentially of:
- (a) modulating a first information waveform according to Lincompex techniques to generate a first compressed information waveform having an information waveform frequency band and a first control tone having a first control tone frequency band;
- (b) modulating at least a second information waveform according to Lincompex techniques to generate at least a second compressed information waveform having said information waveform frequency band and a second control tone having a second control tone frequency band;
- (c) combining said first compressed information waveform and said first control tone with said second information waveform and said second control tone;
- (d) transmitting output of said step (c) on a transmission medium;
- (e) receiving output of said step (d) from said transmission medium;
- and
- (f) demodulating output of said step (e) according to Lincompex techniques, without preprocessing to establish frame synchronization, using one of said first control tone and said second control tone to recover a respective one of said first information waveform and said second information waveform.
An apparatus for transmitting and receiving information waveforms over a communication medium, consisting essentially of:
- a first Lincompex compressor modulating a first information waveform according to Lincompex techniques to generate a first compressed information waveform having an information waveform frequency band and a first control tone having a first control tone frequency band;
- at least a second Lincompex compressor modulating at least a second information waveform according to Lincompex techniques to generate at least a second compressed information waveform having said information waveform frequency band and a second control tone having a second control tone frequency band;
- an arithmetic unit for arithmetically combining said first compressed information waveform and said first control tone with said second information waveform and said second control tone;
- a transmitter transmitting output of said arithmetic unit on a transmission medium;
- a receiver receiving output of said transmitter from said transmission medium;
- and
- at least one Lincompex expander demodulating output of said receiver according to Lincompex techniques, without preprocessing to establish frame synchronization, using one of said first control tone and said second control tone to recover a respective one of said first information waveform and said second information waveform.
Dependencies are inferred from the claim text.