| 摘要 |
1,264,033. Magnetic storage arrangements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 April, 1969 [10 April, 1968], No. 17893/69. Heading H3B. In a word ordered matrix storage device, information is stored in a word row H 1 -H 3 either direct or inverted dependent on the state of a random noise driven bi-stable trigger FF 1 connected to input gates B 1 -B 4 , and at least one auxiliary core K 1ta , K 1tb ... is provided in each row to record the form of storage. The matrix uses two cores K 11a , K 11b ... per bit, the cores of each pair being arranged in opposite magnetic senses with respect to the information conductors V 1-4 , so that coincident word and information pulses produce a higher partially switched magnetization in one core than in the other. As trigger FF 1 is, on average in time, as many times in one state as the other, each core of a pair is, on average, in the higher magnetization state as often as the other core and hence temperature differences between the pair due to repetitive response to the same digit are eliminated. Trigger FF 1 is connected to the auxiliary cores by a conductor V t , and during read-out the signal from the auxiliary cores is fed through read amplifier RA t to drive a trigger FF 2 into a state corresponding to that of FF 1 when the information was recorded. Output gates D 1-4 are connected to trigger FF 2 so that information through read amplifiers RA 1 -RA 4 invariably appears non-inverted at output conductors E 1-4 . The cores are only partially switched to enhance working speed. |
