Computing techniques

Claim 1

AN APPARATUS FOR CONVERTING AN APPLIED KEY TO AN ADDRESS COMPRISING, IN COMBINATION: A KEY REGISTER FOR STORING THE KEY; A PLURALITY OF LEFT MASK REGISTERS, EACH CONTAINING A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A PLURALITY OF RIGHT MASK REGISTERS, EACH CONTAINING A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A PLURALITY OF LEFT MASK SELECT CIRCUITS, EACH CORRESPONDING TO A LEFT MASK REGISTER AND EACH RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE DATA IN THE CORRESPONDING LEFT MASK REGISTER, FOR SELECTING THE DATA IN THE KEY REGISTER AT THE POSITIONS INDICATED BY THE DATA IN THE CORRESPONDING LEFT MASK REGISTER AS A LEFT MASK SELECT INDICATION; A PLURALITY OF RIGHT MASK SELECT CIRCUITS, EACH CORRESPONDING TO A RIGHT MASK REGISTER AND EACH RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE DATA IN THE CORRESPONDING RIGHT MASK REGISTER, FOR SELECTING THE DATA IN KEY REGISTER AT THE POSITIONS INDICATED BY THE DATA IN THE CORRESPONDING RIGHT MASK REGISTER AS A RIGHT MASK SELECT INDICATION; A LEFT SELECT MASK REGISTER RESPONSIVE TO THE LEFT MASK SELECT INDICATION FOR STORING THIS INDICATION; A RIGHT SELECT MASK REGISTER RESPONSIVE TO THE RIGHT MASK SELECT INDICATION FOR STORING THIS INDICATION; A CYCLE CONTROL CIRCUIT FOR SEQUENTIALLY PRODUCING A LEFT SIGNAL AND A RIGHT SIGNAL; A MASK GATING CIRCUIT, RESPONSIVE TO THE LEFT AND RIGHT SIGNALS FROM THE CYCLE CONTROL CIRCUIT AND TO THE LEFT AND RIGHT MASK SELECT INDICATIONS FROM THE LEFT AND RIGHT MASK SELECT REGISTERS, FOR SELECTING THE LEFT MASK SELECT INDICATION AS A RESULTANT MASK SELECT INDICATION WHEN THE LEFT SIGNAL IS PRESENT AND FOR SELECTING THE RIGHT MASKS SELECT INDICATION AS THE RESULTANT MASK INDICATION WHEN THE RIGHT SIGNAL IS PRESENT; A PLURALITY OF MASK CIRCUITS, EACH CORRESPONDING TO A DIFFERENT RESULTANT MASK SELECT INDICATION AND EACH COMPRISING A PLURALITY OF MASK REGISTERS, WHERE EACH MASK REGISTER CONTAINS A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A RESULTANT MASK SELECT CIRCUIT, RESPONSIVE TO THE RESULTANT MASK SELECT INDICATION AND TO THE DATA IN THE MASK REGISTERS, FOR SELECTING THE DATA IN THE MASK REGISTERS THAT CORRESPONDS TO THE SELECT MASK INDICATION AS A RESULTANT MASK INDICATION; AN ADDRESS DATA SELECT CIRCUIT RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE RESULTANT MASK INDICATION, FOR SELECTING THE DATA IN THE KEY REGISTER AT THE POSITIONS INDICATED BY THE RESULTANT MASK INDICATION AS ADDRESS DATA FOR A PORTION OF THE ADDRESS; AN ADDRESS REGISTER COMPRISING A LEFT PORTION AND A RIGHT PORTION; AND ADDRESS GATING MEANS, RESPONSIVE TO THE ADDRESS DATA FROM THE ADDRESS DATA SELECT CIRCUIT AND RESPONSIVE TO THE LEFT AND RIGHT SIGNALS IN THE CYCLE CONTROL CIRCUIT, FOR PLACING THE ADDRESS DATA INTO THE LEFT PORTION OF THE ADDRESS REGISTER WHEN THE LEFT SIGNAL IS PRESENT AND FOR PLACING THE ADDRESS DATA IN THE RIGHT PORTION OF THE ADDRESS REGISTER WHEN THE RIGHT SIGNAL IS PRESENT.

Claim 2

AN APPARATUS FOR CONVERTING AN APPLIED KEY TO AN ADDRESS COMPRISING, IN COMBINATION: A KEY REGISTER FOR STORING THE KEY; A PLURALITY OF LEFT MASK REGISTERS, EACH CONTAINING A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A PLURALITY OF RIGHT MASK REGISTERS, EACH CONTAINING A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A PLURALITY OF LEFT MASK SELECT CIRCUITS, EACH CORRESPONDING TO A LEFT MASK REGISTER AND EACH RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE DATA IN THE CORRESPONDING LEFT MASK REGISTER, FOR SELECTING THE DATA IN THE KEY REGISTER AT THE POSITIONS INDICATED BY THE DATA IN THE CORRESPONDING LEFT MASK REGISTER AS A LEFT MASK SELECT INDICATION; A PLURALITY OF RIGHT MASK SELECT CIRCUITS, EACH CORRESPONDING TO A RIGHT MASK REGISTER AND EACH RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE DATA IN THE CORRESPONDING RIGHT MASK REGISTER, FOR SELECTING THE DATA IN KEY REGISTER AT THE POSITIONS INDICATED BY THE DATA IN THE CORRESPONDING RIGHT MASK REGISTER AS A RIGHT MASK SELECT INDICATION; A LEFT SELECT MASK REGISTER RESPONSIVE TO THE LEFT MASK SELECT INDICATION FOR STORING THIS INDICATION; A RIGHT SELECT MASK REGISTER RESPONSIVE TO THE RIGHT MASK SELECT INDICATION FOR STORING THIS INDICATION; A CYCLE CONTROL CIRCUIT FOR SEQUENTIALLY PRODUCING A LEFT SIGNAL AND A RIGHT SIGNAL; A MASK GATING CIRCUIT, RESPONSIVE TO THE LEFT AND RIGHT SIGNALS FROM THE CYCLE CONTROL CIRCUIT AND TO THE LEFT AND RIGHT MASK SELECT INDICATIONS FROM THE LEFT AND RIGHT MASK SELECT REGISTERS, FOR SELECTING THE LEFT MASK SELECT INDICATION AS A RESULTANT MASK SELECT INDICATION WHEN THE LEFT SIGNAL IS PRESENT AND FOR SELECTING THE RIGHT MASKS SELECT INDICATION AS THE RESULTANT MASK INDICATION WHEN THE RIGHT SIGNAL IS PRESENT; A PLURALITY OF MASK CIRCUITS, EACH CORRESPONDING TO A DIFFERENT RESULTANT MASK SELECT INDICATION AND EACH COMPRISING A PLURALITY OF MASK REGISTERS, WHERE EACH MASK REGISTER CONTAINS A PREDETERMINED INDICATION CORRESPONDING TO A DATA POSITION WITHIN THE KEY REGISTER; A RESULTANT MASK SELECT CIRCUIT, RESPONSIVE TO THE RESULTANT MASK SELECT INDICATION AND TO THE DATA IN THE MASK REGISTERS, FOR SELECTING THE DATA IN THE MASK REGISTERS THAT CORRESPONDS TO THE SELECT MASK INDICATION AS A RESULTANT MASK INDICATION; AN ADDRESS DATA SELECT CIRCUIT RESPONSIVE TO THE DATA IN THE KEY REGISTER AND TO THE RESULTANT MASK INDICATION, FOR SELECTING THE DATA IN THE KEY REGISTER AT THE POSITIONS INDICATED BY THE RESULTANT MASK INDICATION AS ADDRESS DATA FOR A PORTION OF THE ADDRESS; AN ADDRESS REGISTER COMPRISING A LEFT PORTION AND A RIGHT PORTION; AND ADDRESS GATING MEANS, RESPONSIVE TO THE ADDRESS DATA FROM THE ADDRESS DATA SELECT CIRCUIT AND RESPONSIVE TO THE LEFT AND RIGHT SIGNALS IN THE CYCLE CONTROL CIRCUIT, FOR PLACING THE ADDRESS DATA INTO THE LEFT PORTION OF THE ADDRESS REGISTER WHEN THE LEFT SIGNAL IS PRESENT AND FOR PLACING THE ADDRESS DATA IN THE RIGHT PORTION OF THE ADDRESS REGISTER WHEN THE RIGHT SIGNAL IS PRESENT.