Abstract In a pulse reiterating system including a delay line storage device, a system is provided for accommodating changes in delay line characteristics resulting from temperature variation or variations in clock frequency, or other system considerations. A synchronizing signal is stored in the delay line and used to control a start/stop oscillator which in turn is used to synchronize the read-in of data to the delay line. When all the data has been read from the delay line, a control pulse from a counter stops the oscillator until it is restarted for the next recirculation loop by the synchronizing signal. Since the oscillator is used to reclock the information during each recirculation loop, any variation in the length of the delay line or frequency of the oscillator is automatically compensated for.
A self synchronizing delay line recirculation system comprising in combination a magnetostrictive delay line storing data and control signals, said control signals including a synchronizing signal pattern, a source of clock pulses counting said data signals read out from said delay line, counter means responsive to said clock pulses for identifying the end of data readout during each circulation of said delay line, means responsive to said identification means for terminating the generation of said clock pulses each circulation of said delay line, and means responsive to detection of said synchronizing signal pattern for initiating the operation of said source of clock pulses for successive delay line circulation.
Claim 2
Dependent Claim
108 words
A self synchronizing delay line recirculation system comprising in combination a magnetostrictive delay line storing data and control signals, said control signals including a synchronizing signal pattern, a source of clock pulses counting said data signals read out from said delay line, counter means responsive to said clock pulses for identifying the end of data readout during each circulation of said delay line, means responsive to said identification means for terminating the generation of said clock pulses each circulation of said delay line, and means responsive to detection of said synchronizing signal pattern for initiating the operation of said source of clock pulses for successive delay line circulation.
Claim 3
Dependent Claim
18 words
Apparatus of the type claimed in claim 1 wherein said source of clock pulses comprises a start-stop oscillator.
Claim 4
Dependent Claim
23 words
Apparatus of the type claimed in claim 1 wherein said delay line recirculation system includes a shift register for data entry or readout.