Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A logical circuit having a plurality of cascade-connected flip-flops, each flip-flop having connected to an input part thereof a logical gate group, characterised in that the logical gate group of each flip-flop comprises gates arranged to be opened and closed by a shift signal and by a count signal, and in that the logical gate groups are arranged so that the flip-flops serve alternatively to provide a shift register and a counter, in response to the shift signal and the count signal respectively.
Claim 2
Dependent Claim
83 words
A logical circuit having a plurality of cascade-connected flip-flops, each flip-flop having connected to an input part thereof a logical gate group, characterised in that the logical gate group of each flip-flop comprises gates arranged to be opened and closed by a shift signal and by a count signal, and in that the logical gate groups are arranged so that the flip-flops serve alternatively to provide a shift register and a counter, in response to the shift signal and the count signal respectively.
Claim 3
Dependent Claim
149 words
A logical circuit according to claim 1, wherein the logical gate group connected to an nth (n = 1, 2, 3, ...) flip-flop has a construction which embodies the following expression, or the inverse of the following expression, or logical equivalents thereof, where D is data to be input to the nth flip-flop and is the data output from the logical gate group connected to the nth flip-flop; SHT is the shift signal; CNT is the count signal and bears a relationship to the shift signal such that CNT = SHT; Q is the Q output from the nth flip-flop; Q is the Q output from the nth flip-flop; Q (n-1) is the Q output from the (n-1)th flip -flop, which is serial input data Sin in the case of the logical gate group connected to the first flip-flop; and CRY = Q 1 ·Q 2 ····Q (n-1) Ú
Claim 4
Dependent Claim
40 words
A logical circuit according to claim 2, wherein the logical gate group connected to the nth flip-flop has a construction which embodies the simplified expression as follows, or the inverse of the simplified expression as followsü or logical equivalents thereof,
Claim 7
Dependent Claim
16 words
A logical circuit according to any preceding claim, wherein the flip-flops are D-type or delay flip-flops.
Claim 8
Dependent Claim
16 words
A logical circuit according to claim 1, 2 or 3, wherein the flip-flops are J-K flip-flops.
Claim 9
Dependent Claim
18 words
A logical circuit according to any preceding claim, wherein the gate groups employ AND gates and OR gates.
Claim 10
Dependent Claim
22 words
A logical circuit according to claim 1, 2, 3, 4 or 5, wherein the gate groups employ NAND gates and AND gates.
Claim 11
Dependent Claim
21 words
A logical circuit according to claim 1, 2, 3,4 or 5, wherein the gate groups employ AND gates and NOR gates.