会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明专利
    • Multiplication processor
    • 多媒体处理器
    • JPS59194243A
    • 1984-11-05
    • JP6890183
    • 1983-04-18
    • Nippon Telegr & Teleph Corp
    • TAKAHASHI YUKIOHAGIWARA NOBORU
    • G06F7/533G06F7/508G06F7/52G06F7/53
    • G06F7/5324
    • PURPOSE:To speed up 2N-bit multiplication only by adding slight hardware by providing a detecting means for all-1 and all-0 states of high-order N-bits of a multiplier and a multiplicand, and controlling the frequency of the N-bit multiplication according to its detection result. CONSTITUTION:Lines 2a and 2b, and 3a and 3b are both input data lines with N- bit width and a high-order and a low-order N-bit line of 2N bits. Detecting circuits 22a and 22b detect N-bit parts of the input data lines 3a and 2a are in the all-1 or all-0 state. A selecting circuit 29 selects the input data line 2a or 2b to supply its data to an input A of a multiplying circuit 5, and a selecting circuit 30 selects the input data line 3a or 3b to supply its data to an input B of the multiplying circuit. A control signal 31 has four states, and the selecting circuits 29 and 30 select input data XL or XH, and YL or YH according to the state of the control signal and the bit pattern of YL.
    • 目的:通过为乘法器和被乘数的高阶N位的全1和全0状态提供检测装置,通过增加轻微的硬件来加速2N位乘法,并且控制N- 根据其检测结果进行位乘法。 构成:线2a和2b以及3a和3b都是具有N位宽的输入数据线和2N位的高阶和低位N位线。 检测电路22a和22b检测输入数据线3a和2a的N位部分处于全1或全0状态。 选择电路29选择输入数据线2a或2b将其数据提供给乘法电路5的输入端A,并且选择电路30选择输入数据线3a或3b以将其数据提供给乘法器B的输入 电路。 控制信号31具有四种状态,选择电路29和30根据控制信号的状态和YL的位模式来选择输入数据XL或XH,YL或YH。
    • 6. 发明专利
    • Division type multiplier
    • 分类型乘法器
    • JPS59149540A
    • 1984-08-27
    • JP2214683
    • 1983-02-15
    • Toshiba Corp
    • NISHIHARA EITAROU
    • G06F7/53G06F7/508G06F7/52
    • G06F7/5324G06F2207/3828
    • PURPOSE:To vary the processing accuracy in response to the effective accuracy of input data by dividing electrically plural adders into plural blocks and making independent operations possible among these divided blocks. CONSTITUTION:An input signal of b bits is supplied to X and Y inputs when a control input terminal 6 is set at a high level. Then the partial integrations produced from banks 7-10 are added as they are, and an arithmetic result of 46 bits is delivered to an output P. When the terminal 6 is set at a low level, the outputs of gates 11-1-11-4 are set at 0. Therefore, the output of the bank 8 is set at 0, and at the same time the outputs of gates 12-1-12-4 are simultaneously set at 0. Therefore the output of the bank 7 is not transmitted to the bank 9. As a result, partial integrations [XlXYh] and [XhXYl] are set at 0, and [XlXYh] are delivered independently to the output although said partial integrations are added as they are. In other words, two systems of parallel multipliers which deliver 8 bits with an input of (4X4) bits are actuated independently of each other.
    • 目的:通过将多个加法器分割成多个块并使这些分割块之间独立运行,可以响应于输入数据的有效精度来改变处理精度。 构成:当控制输入端子6设置在高电平时,b位的输入信号被提供给X和Y输入。 然后,将从存储体7-10产生的部分积分原样相加,并将46位的算术结果传送到输出端P.当端子6设定为低电平时,门11-1-11的输出 -4被设置为0.因此,存储体8的输出被设置为0,并且同时将门12-1-12-4的输出同时设置为0.因此,存储体7的输出为 结果,部分积分[X1XYh]和[XhXY1]被设置为0,并且[XlXYh]被独立地输出到输出,尽管所述部分积分被原样地相加。 换句话说,具有(4X4)位输入的8位并行乘法器的两个系统彼此独立地被致动。