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    • 6. 发明公开
    • Multiple resonant tunneling circuits for positive digit multi-valued logic operations
    • 电路中使用,用于与正数多值逻辑操作的多个共振隧道效应。
    • EP0644480A2
    • 1995-03-22
    • EP94303702.8
    • 1994-05-24
    • TEXAS INSTRUMENTS INCORPORATED
    • Taddiken, Albert H.
    • G06F7/49H03K23/00H01L29/73
    • B82Y10/00G06F7/49G06F2207/4828
    • Multiple resonant tunneling devices offer significant advantages for realizing ultra-dense, ultra-high performance multivalued logic arithmetic integrated circuits. A multivalued logic adder is disclosed, wherein two numbers represented by positive digit base-M range-N words are added by two-input summation circuits (40) which sum corresponding digits, then the digit sums are decomposed into a binary representation by range-7 multivalued to binary converter circuits (42) , then three-input summation circuits (44) sum appropriate bits of the binary representations to calculate the digits of a positive digit base-2 range-4 word whose value is the sum of the two numbers. Preferably, the decomposition to binary representation is performed by multi-valued folding circuits (56) which are connected by voltage divider circuitry. Preferably, the multi-valued folding circuits contain multiple-peak resonant tunneling transistors (54) . Ripple carries are eliminated and the speed of the adder is independent of input word width.
    • 多个谐振隧穿器件为实现超高密度,超高性能多值逻辑运算的集成电路显著优点。 多值逻辑加法器盘游离缺失,worin由正数字基-M范围-N字表示两个数字由两输入求和电路40,其总和CORRESPONDING位数,那么数字总和按范围-7多值分解成二进制表示被添加 二进制转换器电路42,然后三输入求和电路的二进制表示的44个适当总和比特来计算正数字基-2-范围-4字,其值是两个数字的总和的数字。 优选地,所述分解到二进制表示通过由分压器电路连接的多值折叠电路56执行的。 优选地,该多值折叠电路包含多峰共振隧穿晶体管54纹波携带被消除并且加法器的速度是独立于输入字的宽度。