Recording and reproducing system

Claim 1

A RECORDING AND REPRODUCING SYSTEM COMPRISING: MEANS FOR RECORDING AN INFORMATION SIGNAL ON A STORAGE MEDIUM, SAID RECORDING MEANS BEING SUBJECT TO TIME ERROR VARIATIONS WHEREBY SAID INFORMATION SIGNAL IS ANGLE MODULATED; MEANS FOR GENERATING A REFERENCE PILOT SIGNAL FOR APPLICATION TO SAID RECORDING MEANS; MEANS FOR APPLYING SAID REFERENCE PILOT SIGNAL TO SAID RECORDING MEANS TO BE SIMULTANEOUSLY RECORDED ON SAID STORAGE MEDIUM WITH SAID INFORMATION SIGNAL, AND SUBJECT TO SUCH ANGLE MODULATION; MEANS FOR REPRODUCING SAID RECORDED SIGNALS; MEANS FOR SEPARATING SAID REPRODUCED MODULATED PILOT AND INFORMATION SIGNALS; AN ELECTRONIC TIMING CONTROL DEVICE HAVING A STORAGE TARGET DISPOSED BETWEEN A WRITING PORTION AND A READOUT PORTION, SAID WRITING PORTION PROVIDING A WRITING ELECTRON BEAM FOR CONTINUOUSLY DEPOSITING A CHARGE PATTERN ON SAID TARGET REPRESENTATIVE OF SAID SIGNAL INFORMATION, SAID READOUT PORTION PROVIDING A READING ELECTRON BEAM FOR READING AND ERASING SAID CHARGE PATTERN; MEANS FOR APPLYING SAID SEPARATED INFORMATION SIGNAL TO SAID WRITING PORTION FOR INTENSITY MODULATING SAID WRITING BEAM; MEANS FOR DEFLECTING SAID WRITING BEAM IN A CIRCULAR TRACE ON SAID TARGET; MEANS COUPLED TO SAID WRITING BEAM DEFLECTION MEANS FOR APPLYING SAID SEPARATED PILOT SIGNAL HAVING ANGLE MODULATION TO SAID DEFLECTING MEANS TO VARY THE SPEED OF SAID WRITING BEAM IN ITS DEFLECTED CIRCULAR PATH IN OCCORDANCE WITH SAID ANGLE MODULATION; MEANS FOR DEFLECTING SAID READING BEAM IN A CIRCULAR TRACE CONGRUENT WITH SAID WRITING BEAM TRACE ON SAID TARGET; AND MEANS FOR APPLYING SAID GENERATED REFERENCE PILOT SIGNAL TO SAID READING BEAM TO MAINTAIN SAID READING BEAM IN ITS CIRCULAR PATH AT A SUBSTANTIALLY CONSTANT SPEED.