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    • 5. 发明授权
    • Digital peak and valley detector
    • 数字峰谷检测器
    • US4896104A
    • 1990-01-23
    • US311161
    • 1989-02-15
    • Chandravadan N. PatelRichard Wm. BlascoAtsushi KiuchiHiromitsu Inada
    • Chandravadan N. PatelRichard Wm. BlascoAtsushi KiuchiHiromitsu Inada
    • G06F7/02G01R19/04
    • G01R19/04
    • A digital peak and valley detector including a peak value address register, a valley value address register, a peak value data register, a valley value data register, a peak comparator for comparing the value stored in the peak value data register with value data contained in the digital signal applied to the digital peak and valley detector and for causing the greater of the two to be stored in the peak value data register while simultaneously storing the address in the peak value address register and a valley comparator for comparing the valley value contained in the valley value data register with the value data contained in the digital signal applied to the digital peak and valley detector for determining which is less and for causing the value and the address of the smaller of the two to be stored respectively in the valley value data and the valley value address registers.
    • 数字峰谷检测器,包括峰值地址寄存器,谷值地址寄存器,峰值数据寄存器,谷值数据寄存器,用于将存储在峰值数据寄存器中的值与包含在其中的值数据进行比较的峰值比较器 数字信号施加到数字峰谷检测器,并使两个中的较大值存储在峰值数据寄存器中,同时将地址存储在峰值地址寄存器和谷比较器中,用于比较包含在 谷数值数据寄存器,其中包含在数字信号中的数值数据被加到数字峰谷检测器,用于确定哪一个较小,并且使两个中较小的值的值和地址分别存储在谷值数据中 和谷值地址寄存器。
    • 6. 发明授权
    • Information processing apparatus
    • 信息处理装置
    • US4809206A
    • 1989-02-28
    • US87346
    • 1987-08-20
    • Atsushi KiuchiKenji KanekoJun IshidaTetsuya NakagawaYoshimune HagiwaraHirotada Ueda
    • Atsushi KiuchiKenji KanekoJun IshidaTetsuya NakagawaYoshimune HagiwaraHirotada Ueda
    • G06F9/34G06F7/544G06F12/02G06F17/10H03H17/02G06F7/38
    • G06F7/5443
    • This invention relates to an information processing apparatus such as a digital signal processor and is applied particularly suitably to a digital filter.A plurality of data from initial value data till final value data relating to filtering coefficients of a digital filter are stored in a data memory, and are sequentially read out by an increment operation of an address arithmetic unit.A data arithmetic unit executes sequentially product and/or sum operations of a plurality of data that are sequentially read out and digital input signals that are sequentially inputted, to perform digital signal processing.The information processing apparatus is equipped particularly with means, which when an access address starts from an initial value, exceeds a final value and reaches a return address due to the increment operation, returns automatically the access address to the initial value. Therefore, a plurality of data stored in the data memory can be utilized repeatedly.Contrivances are made in order to set the number of a plurality of data that are stored in the data memory for repetition of use, to an arbitrary value.
    • 本发明涉及诸如数字信号处理器的信息处理设备,并且特别适用于数字滤波器。 从初始值数据到与数字滤波器的滤波系数相关的最终值数据的多个数据被存储在数据存储器中,并且通过地址运算单元的增量操作被依次读出。 数据运算单元依次执行依次读出的多个数据和顺序输入的数字输入信号的乘积和/或和运算,进行数字信号处理。 该信息处理装置特别地具有如下装置:当访问地址从初始值开始时,由于增量操作而超过最终值并达到返回地址,自动将访问地址返回到初始值。 因此,可以重复使用存储在数据存储器中的多个数据。 为了将存储在用于重复使用的数据存储器中的多个数据的数量设置为任意值,进行了操作。