Conversion to a digital code which is self-clocking and absolute phasing

Claim 3

The method of claim 1 wherein said providing steps comprise the steps of generating a train of timing pulses, each pulse of which occurs during a corresponding interval of said encoded signal, converting each of said timing pulses into one of said first pulses, and converting said timing pulses into said second pulses.

Claim 4

The method of claim 2, wherein said timing pulses and said first pulses are substantially the same.

Claim 7

The process according to claim 11 wherein said selective coupling step includes gating said first and second pulses to said terminal in response to a binary signal manifesting data to be encoded.

Claim 8

A code generator for generating at an output terminal thereof a binary encoded signal of the type representative of a series of bits each occurring during a separate one of contiguous intervals of equal duration in response to timing pulses of a binary control signal applied thereto, each of said bits manifesting one of two given binary values, said generator comprising: means responsive to one value of said binary control signal and to said timing pulses applied thereto for generating at said output terminal a first pulse manifesting said one binary value, said first pulse having sharply rising and falling transient variations occurring between first and second levels, each of the first pulses of all said intervals having the same given one of either said rising or falling transient variations occurring substantially in coincidence with an interval boundary corresponding to the interval for which that pulse is provided, each of said first pulses further having the other of said transient variations occurring intermediate the boundaries of the same corresponding interval, each first pulse corresponding solely to a separate, different interval, and means responsIve to the other value of said binary signal and said timing pulses applied thereto for generating at said output terminal a second pulse manifesting the other of said given values, said second pulse having sharply rising and falling transient variations occurring between first and second levels, each of said second pulses for all said intervals having their respective rising and falling transient variations occurring substantially in coincidence with the interval boundaries corresponding to the interval for which that second pulse is provided, each second pulse corresponding solely to a separate, different interval, whereby all transitions having the polarity of said given one transient variation occur in coincidence with only the bit cell boundaries.

Claim 9

A code generator for generating at an output terminal thereof a binary encoded signal of the type representative of a series of bits each occurring during a separate one of contiguous intervals of equal duration in response to timing pulses of a binary control signal applied thereto, each of said bits manifesting one of two given binary values, said generator comprising: means responsive to one value of said binary control signal and to said timing pulses applied thereto for generating at said output terminal a first pulse manifesting said one binary value, said first pulse having sharply rising and falling transient variations occurring between first and second levels, each of the first pulses of all said intervals having the same given one of either said rising or falling transient variations occurring substantially in coincidence with an interval boundary corresponding to the interval for which that pulse is provided, each of said first pulses further having the other of said transient variations occurring intermediate the boundaries of the same corresponding interval, each first pulse corresponding solely to a separate, different interval, and means responsIve to the other value of said binary signal and said timing pulses applied thereto for generating at said output terminal a second pulse manifesting the other of said given values, said second pulse having sharply rising and falling transient variations occurring between first and second levels, each of said second pulses for all said intervals having their respective rising and falling transient variations occurring substantially in coincidence with the interval boundaries corresponding to the interval for which that second pulse is provided, each second pulse corresponding solely to a separate, different interval, whereby all transitions having the polarity of said given one transient variation occur in coincidence with only the bit cell boundaries.

Claim 10

The generator of claim 6 wherein said other transient variations of said first pulse occur in substantially equal time spaced relationship with each of the respective boundaries of that corresponding interval, said second pulse generating means including means for dividing said applied timing bits by two.

Claim 11

A code generator for generating a self clocking binary encoded signal of the type representative of a series of bits each occurring during a separate one of contiguous intervals of equal duration utilizing an applied binary information input signal and an accompanying stream of timing pulses of the type having sharply rising and falling transient variations occurring between first and second levels, and the same given one of either said rising or falling transient variations occurring substantially in coincidence with an interval boundary corresponding to the interval in which only that pulse occurs, each of said timing pulses further having the other of said transient variations occurring intermediate the boundaries of the same corresponding interval, comprising: a bistable multivibrator responsive to either of said rising or falling transient variations of each of said applied timing pulses occurring at said boundary for generating solely for each interval a substantially rectangular waveform having both its rising and falling transient variations occurring substantially in coincidence with the respective boundaries of the interval corresponding to that applied timing pulse, first gate means responsive to said input signal and said rectangular waveform applied thereto, said gate means passing said rectangular waveform to an output thereof when said input signal manifests one given value, second gate means responsive to said applied input signal and timing pulses for passing said timing pulses to an output thereof when said input signal manifests a second given value, and means for coupling said first and second gate outputs to a common terminal, each said rectangular waveform corresponding to one given binary value of said input signal and each said timing pulses corresponding to the other binary value, whereby all transient variations having the polarity of said given one transient variation occur in coincidence with only the bit cell boundaries.

Claim 12

A code generator for generating a self clocking binary encoded signal of the type representative of a series of bits each occurring during a separate one of contiguous intervals of equal duration utilizing an applied binary information input signal and an accompanying stream of timing pulses of the type having sharply rising and falling transient variations occurring between first and second levels, and the same given one of either said rising or falling transient variations occurring substantially in coincidence with an interval boundary corresponding to the interval in which only that pulse occurs, each of said timing pulses further having the other of said transient variations occurring intermediate the boundaries of the same corresponding interval, comprising: a bistable multivibrator responsive to either of said rising or falling transient variations of each of said applied timing pulses occurring at said boundary for generating solely for each interval a substantially rectangular waveform having both its rising and falling transient variations occurring substantially in coincidence with the respective boundaries of the interval corresponding to that applied timing pulse, first gate means responsive to said input signal and said rectangular waveform applied thereto, said gate means passing said rectangular waveform to an output thereof when said input signal manifests one given value, second gate means responsive to said applied input signal and timing pulses for passing said timing pulses to an output thereof when said input signal manifests a second given value, and means for coupling said first and second gate outputs to a common terminal, each said rectangular waveform corresponding to one given binary value of said input signal and each said timing pulses corresponding to the other binary value, whereby all transient variations having the polarity of said given one transient variation occur in coincidence with only the bit cell boundaries.