High density communications system

Claim 1

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from the first of said received composite waveforms corresponding to said first sinusoidal waveform, establishing a second clock pulse signal from said fifth sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said received composite waveforms, establishing the first data message by detecting the polarity of the first of said received composite waveforms at the occurrence of the clock pulses in said second clock pulse signal, shifting the phase of said fifth sinusoidal waveform by an amount and in the direction of the phase shift of said third and fourth sinusoidal waveforms from said first and second sinusoidal waveforms to establish a sixth sinusoidal waveform, establishing a third clock pulse signal from said sixth sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said receiVed composite waveforms, and establishing the second data message by detecting the polarity of the second of said received composite waveforms at the occurrence of the clock pulses in said third clock pulse signal.

Claim 2

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from the first of said received composite waveforms corresponding to said first sinusoidal waveform, establishing a second clock pulse signal from said fifth sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said received composite waveforms, establishing the first data message by detecting the polarity of the first of said received composite waveforms at the occurrence of the clock pulses in said second clock pulse signal, shifting the phase of said fifth sinusoidal waveform by an amount and in the direction of the phase shift of said third and fourth sinusoidal waveforms from said first and second sinusoidal waveforms to establish a sixth sinusoidal waveform, establishing a third clock pulse signal from said sixth sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said receiVed composite waveforms, and establishing the second data message by detecting the polarity of the second of said received composite waveforms at the occurrence of the clock pulses in said third clock pulse signal.

Claim 3

The method of preparing for transmission two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, and selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform and said fourth sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message.

Claim 4

The method of preparing for transmission two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, and selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform and said fourth sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message.

Claim 5

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveform has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising creating a first sinusoidal waveform from the first of said data message composite waveforms, establishing a first clock pulse signal from said first sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said data message composite waveforms, establishing the first two-voltage state message by detecting the polarity of the first of said data message composite waveforms at the occurrence of the clock pulses in said first clock pulse signal, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said data message composite waveform, and establishing the second two-voltage state message by detecting the polarity of the second of said data message composite waveforms at the occuRrence of the clock pulses in said second clock pulse signal.

Claim 6

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveform has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising creating a first sinusoidal waveform from the first of said data message composite waveforms, establishing a first clock pulse signal from said first sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said data message composite waveforms, establishing the first two-voltage state message by detecting the polarity of the first of said data message composite waveforms at the occurrence of the clock pulses in said first clock pulse signal, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said data message composite waveform, and establishing the second two-voltage state message by detecting the polarity of the second of said data message composite waveforms at the occuRrence of the clock pulses in said second clock pulse signal.

Claim 7

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising paraphasing the first of said data message composite waveforms to derive a first signal and a second signal complementary thereto, both of said derived signals being similarly shaped to said first data message composite waveform, selecting similarly progressing cycles from between said first and second signals to establish a first substantially sinusoidal waveform, establishing a first clock pulse signal from said first sinusoidal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, establishing a first two-voltage state message having a first voltage state when a clock pulse in said first clock pulse signal and a first type sinusoidally-shaped cycle of said first derived signal occur simultaneously and a second voltage state when a clock pulse in said first clock pulse signal and a second type sinusoidally-shaped cycle of said second derived signal occur simultaneously, a voltage state in said first two-voltage state message persisting until a new state is established, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform, the clock pulse therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, paraphasing the second of said data message composite waveforms to derive a third signal and a fourth signal complementary thereto, both of said derived signals being similarly shaped to said second data message composite waveform, establishing a second two-voltage state message having a first voltage state when a clock pulse in said second clock pulse signal and a first type sinusoidally-shaped cycle of said third derived signal occur simultaneously and a second voltage state when a clock pulse in said second clock pulse signal and a second type sinusoidally-shaped cycle of said fourth derived signal occur simultaneously, a voltage state in said second two-voltage state message persisting until a new state is established.

Claim 8

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising paraphasing the first of said data message composite waveforms to derive a first signal and a second signal complementary thereto, both of said derived signals being similarly shaped to said first data message composite waveform, selecting similarly progressing cycles from between said first and second signals to establish a first substantially sinusoidal waveform, establishing a first clock pulse signal from said first sinusoidal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, establishing a first two-voltage state message having a first voltage state when a clock pulse in said first clock pulse signal and a first type sinusoidally-shaped cycle of said first derived signal occur simultaneously and a second voltage state when a clock pulse in said first clock pulse signal and a second type sinusoidally-shaped cycle of said second derived signal occur simultaneously, a voltage state in said first two-voltage state message persisting until a new state is established, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform, the clock pulse therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, paraphasing the second of said data message composite waveforms to derive a third signal and a fourth signal complementary thereto, both of said derived signals being similarly shaped to said second data message composite waveform, establishing a second two-voltage state message having a first voltage state when a clock pulse in said second clock pulse signal and a first type sinusoidally-shaped cycle of said third derived signal occur simultaneously and a second voltage state when a clock pulse in said second clock pulse signal and a second type sinusoidally-shaped cycle of said fourth derived signal occur simultaneously, a voltage state in said second two-voltage state message persisting until a new state is established.

Claim 9

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveform has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising inverting the first of said data message composite waveforms to establish a complementary signal thereto, selecting similarly progressing cycles from between said first data message composite and inverted waveforms to establish a first substantially sinusoidal waveform, establishing a first clock pulse signal from said first sinusoIdal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, establishing a first two-voltage state message having a first voltage state when a clock pulse in said first clock pulse signal and a first type sinusoidally-shaped cycle of said first data message composite waveform occur simultaneously and a second voltage state when a clock pulse in said first clock pulse signal and a second type sinusoidally-shaped cycle of said inverted waveform occur simultaneously, a voltage state in said first two-voltage state message persisting until a new state is established, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, inverting the second of said data message composite waveforms to establish a complementary signal thereto, establishing a second two-voltage state message having a first voltage state when a clock pulse in said second clock pulse signal and a first type sinusoidally-shaped cycle of said second data message derived composite waveform occur simultaneously and a second voltage state when a clock pulse in said second clock pulse signal and a second type sinusoidally-shaped cycle of said inverted waveform occur simultaneously, a voltage state in said second two-voltage state message persisting until a new state is established.

Claim 10

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveform has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being phase separated by a slight amount, comprising inverting the first of said data message composite waveforms to establish a complementary signal thereto, selecting similarly progressing cycles from between said first data message composite and inverted waveforms to establish a first substantially sinusoidal waveform, establishing a first clock pulse signal from said first sinusoIdal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, establishing a first two-voltage state message having a first voltage state when a clock pulse in said first clock pulse signal and a first type sinusoidally-shaped cycle of said first data message composite waveform occur simultaneously and a second voltage state when a clock pulse in said first clock pulse signal and a second type sinusoidally-shaped cycle of said inverted waveform occur simultaneously, a voltage state in said first two-voltage state message persisting until a new state is established, shifting the phase of said first sinusoidal waveform by an amount and in the direction of the phase separation between said first and second data message composite waveforms to establish a second sinusoidal waveform, establishing a second clock pulse signal from said second sinusoidal waveform, the clock pulses therein coinciding with the same polarity peak amplitude of said sinusoidal signal on successive cycles thereof, inverting the second of said data message composite waveforms to establish a complementary signal thereto, establishing a second two-voltage state message having a first voltage state when a clock pulse in said second clock pulse signal and a first type sinusoidally-shaped cycle of said second data message derived composite waveform occur simultaneously and a second voltage state when a clock pulse in said second clock pulse signal and a second type sinusoidally-shaped cycle of said inverted waveform occur simultaneously, a voltage state in said second two-voltage state message persisting until a new state is established.

Claim 11

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from the first of said received composite waveforms corresponding to said first sinusoidal waveform, establisHing a second clock pulse signal from said fifth sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said received composite waveforms, establishing the first data message by detecting the polarity of the first of said received composite waveforms at the occurrence of the clock pulses in said second clock pulse signal, shifting the phase of said fifth sinusoidal waveform by an amount and in the direction of the phase shift of said third and fourth sinusoidal waveforms from said first and second sinusoidal waveforms until the cycles thereof coincide with the cycles of the second of said received composite waveform to establish a sixth sinusoidal waveform, establishing a third clock pulse signal from said sixth sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said received composite waveforms, and establishing the second data message by detecting the polarity of the second of said received composite waveforms at the occurrence of the clock pulses in said third clock pulse signal.

Claim 12

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having the same fixed data bit interval, which comprises generating a first clock pulse signal having the interval of an information data bit, establishing a first sinusoidal waveform from said clock pulse signal having a period equalling the interval between successive clock pulses, such that the same polarity peak occurrence on successive cycles coincides with a clock pulse in said clock pulse signal, and biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the switching points between information data bits of said first data message between said first sinusoidal waveform and said second sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between said switching points corresponds to a state of said first data message, shifting the phase of said first and second sinusoidal waveforms by the same amount to establish third and fourth sinusoidal waveforms, the amount of phase shift being sufficient to provide distinction between said first composite waveform formed from said first and second sinusoidal waveforms and a similar second composite waveform formed from said third and fourth sinusoidal waveforms during transmission and reception thereof, selecting at the time of the switching points between information data bits of said second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between said switching points corresponds to a state of said second data message, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from the first of said received composite waveforms corresponding to said first sinusoidal waveform, establisHing a second clock pulse signal from said fifth sinusoidal waveform such that the clock pulses therein occur at the peaks of the first of said received composite waveforms, establishing the first data message by detecting the polarity of the first of said received composite waveforms at the occurrence of the clock pulses in said second clock pulse signal, shifting the phase of said fifth sinusoidal waveform by an amount and in the direction of the phase shift of said third and fourth sinusoidal waveforms from said first and second sinusoidal waveforms until the cycles thereof coincide with the cycles of the second of said received composite waveform to establish a sixth sinusoidal waveform, establishing a third clock pulse signal from said sixth sinusoidal waveform such that the clock pulses therein occur at the peaks of the second of said received composite waveforms, and establishing the second data message by detecting the polarity of the second of said received composite waveforms at the occurrence of the clock pulses in said third clock pulse signal.

Claim 13

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having a fixed data bit interval, which comprises establishing a first sinusoidal waveform biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the first data message between said first sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the first data message, said waveform being at a first angular velocity, establishing a third sinusoidal waveform having a second angular velocity different from said first angular velocity biased positively with respect to a fixed d-c potential, establishing a fourth sinusoidal waveform substantially equal in amplitude to the amplitude of said third sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the second data message, said waveform being at said second angular velocity, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from said received first composite waveform of said first data message at said first angular velocity, establishing the first data message by detecting the polarity of said received first composite waveform during the occurrence of each cycle of said fifth sinusoidal waveform, creating a sixth sinusoidal waveform from said received composite waveform from said received second composite waveform of said second data message at said second angular velocity, establishing the second data message by detecting the polarity of said received second composite waveform during the occurrence of each cycle of said sixth sinusoidal waveform.

Claim 14

The method of transmitting and receiving two-state data information comprising at least a first and second data message, each of said data messages having a fixed data bit interval, which comprises establishing a first sinusoidal waveform biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the first data message between said first sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the first data message, said waveform being at a first angular velocity, establishing a third sinusoidal waveform having a second angular velocity different from said first angular velocity biased positively with respect to a fixed d-c potential, establishing a fourth sinusoidal waveform substantially equal in amplitude to the amplitude of said third sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the second data message, said waveform being at said second angular velocity, transmitting said first and second composite waveforms, receiving said first and second composite waveforms, creating a fifth sinusoidal waveform from said received first composite waveform of said first data message at said first angular velocity, establishing the first data message by detecting the polarity of said received first composite waveform during the occurrence of each cycle of said fifth sinusoidal waveform, creating a sixth sinusoidal waveform from said received composite waveform from said received second composite waveform of said second data message at said second angular velocity, establishing the second data message by detecting the polarity of said received second composite waveform during the occurrence of each cycle of said sixth sinusoidal waveform.

Claim 16

The methOd of preparing for transmission of two-state data information comprising at least a first and second data message, each of said data messages having a fixed data bit interval, which comprises establishing a first sinusoidal waveform biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the first data message between said first sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the first data message, said waveform being at a first angular velocity, establishing a third sinusoidal waveform having a second angular velocity different from said first angular velocity biased positively with respect to a fixed d-c potential, establishing a fourth sinusoidal waveform substantially equal in amplitude to the amplitude of said third sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, and selecting at the time of the transition points between information data bits of the second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the second data message, said waveform being at said second angular velocity.

Claim 17

The methOd of preparing for transmission of two-state data information comprising at least a first and second data message, each of said data messages having a fixed data bit interval, which comprises establishing a first sinusoidal waveform biased positively with respect to a fixed d-c potential, establishing a second sinusoidal waveform substantially equal in amplitude to the amplitude of said first sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, selecting at the time of the transition points between information data bits of the first data message between said first sinusoidal waveform as determined by the state of the two-state data information, thereby forming a first composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the first data message, said waveform being at a first angular velocity, establishing a third sinusoidal waveform having a second angular velocity different from said first angular velocity biased positively with respect to a fixed d-c potential, establishing a fourth sinusoidal waveform substantially equal in amplitude to the amplitude of said third sinusoidal waveform and complementary thereto, and biased negatively with respect to a fixed d-c potential, and selecting at the time of the transition points between information data bits of the second data message between said third sinusoidal waveform as determined by the state of the two-state data information, thereby forming a second composite waveform the polarity of which between transition points corresponds to a state of the two-state data information of the second data message, said waveform being at said second angular velocity.

Claim 18

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being at slightly different angular velocities, comprising creating a first sinusoidal waveform from said received first data message composite waveform at a first angular velocity, establishing the first data message in two-voltage state message form by detecting the polarity of said received first data message composite waveform during the occurrence of each cycle of said first sinusoidal waveform, creating a second sinusoidal waveform from said received second data message composite waveform at a second angular velocity, and establishing the second data message in two-voltage state message form by detecting the polarity of said received second data message composite waveform during the occurrence of each cycle of said second sinusoidal waveform.

Claim 19

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being at slightly different angular velocities, comprising creating a first sinusoidal waveform from said received first data message composite waveform at a first angular velocity, establishing the first data message in two-voltage state message form by detecting the polarity of said received first data message composite waveform during the occurrence of each cycle of said first sinusoidal waveform, creating a second sinusoidal waveform from said received second data message composite waveform at a second angular velocity, and establishing the second data message in two-voltage state message form by detecting the polarity of said received second data message composite waveform during the occurrence of each cycle of said second sinusoidal waveform.

Claim 20

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being at slightly different angular velocities, comprising creating a first sinusoidal waveform from said received first data message composite waveform at a first angular velocity, establishing a first cLock pulse signal from said first sinusoidal waveform such that the clock pulses therein occur at the peaks of said received first data message composite waveform, establishing the first data message in two-voltage state message form by detecting the polarity of said received first data message composite waveform at the occurrence of each of the clock pulses in said first clock pulse signal, creating a second sinusoidal waveform from said received second data message composite waveform at a second angular velocity, establishing a second clock pulse signal from said second sinusoidal waveform such that the clock pulses therein occur at the peaks of said received second data message composite waveform, and establishing the second data message in two-voltage state message form by detecting the polarity of said received second data message composite waveform at the occurrence of each of the clock pulses in said second clock pulse signal.

Claim 21

The method of converting to two-voltage state message form a composite received signal coded with two-state data information comprising at least first and second data message composite waveforms, wherein each of said data message composite waveforms has substantially equal cycle periods such that a first type sinusoidally-shaped cycle progressing from a zero peak to a positive peak to a zero peak represents a first data state and a second type sinusoidally-shaped cycle progressing from a zero peak to a negative peak to a zero peak represents the second data state, said first and second data message composite waveforms being at slightly different angular velocities, comprising creating a first sinusoidal waveform from said received first data message composite waveform at a first angular velocity, establishing a first cLock pulse signal from said first sinusoidal waveform such that the clock pulses therein occur at the peaks of said received first data message composite waveform, establishing the first data message in two-voltage state message form by detecting the polarity of said received first data message composite waveform at the occurrence of each of the clock pulses in said first clock pulse signal, creating a second sinusoidal waveform from said received second data message composite waveform at a second angular velocity, establishing a second clock pulse signal from said second sinusoidal waveform such that the clock pulses therein occur at the peaks of said received second data message composite waveform, and establishing the second data message in two-voltage state message form by detecting the polarity of said received second data message composite waveform at the occurrence of each of the clock pulses in said second clock pulse signal.