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    • 1. 发明申请
    • Programmable digital filter
    • 可编程数字滤波器
    • US20070050438A1
    • 2007-03-01
    • US11215856
    • 2005-08-31
    • Roshan SamuelJames Bartling
    • Roshan SamuelJames Bartling
    • G06F17/10
    • G06F9/3001H03H17/0294H03H2017/0298
    • A method of filtering one or more input signals, includes receiving one or more input signals, each having an input signal value. The method includes storing at least two instructions in a program memory to filter one or more of the input signals. Each instruction includes an opcode and identifies at least two input locations and at least one output location. The method includes, for one or more of the one or more input signals, and then for each instruction, fetching input values from the at least two input locations. The method further includes performing an operation on the input values to produce an output value, based on the opcode of the instruction and outputting the output value to at least one output location.
    • 一种对一个或多个输入信号进行滤波的方法包括接收一个或多个输入信号,每个输入信号具有输入信号值。 该方法包括在程序存储器中存储至少两个指令以过滤一个或多个输入信号。 每个指令包括操作码,并标识至少两个输入位置和至少一个输出位置。 该方法包括对于一个或多个输入信号中的一个或多个,然后对于每个指令,从至少两个输入位置获取输入值。 该方法还包括基于指令的操作码对输入值执行操作以产生输出值,并将输出值输出到至少一个输出位置。
    • 5. 发明申请
    • Method and apparatus for configuring a cyclic redundancy check (CRC) generation circuit to perform CRC on a data stream
    • 用于配置循环冗余校验(CRC)生成电路以对数据流执行CRC的方法和装置
    • US20070016842A1
    • 2007-01-18
    • US11180821
    • 2005-07-13
    • Roshan SamuelRawin Rojvanit
    • Roshan SamuelRawin Rojvanit
    • H03M13/00
    • H03M13/6516H03M13/09
    • A method and apparatus for configuring a cyclic redundancy check (CRC) generation circuit to perform CRC on a data stream are disclosed. The method includes storing a generator polynomial associated with a CRC equation in a register, where the generator polynomial has a length capable of varying such that the length has any value less than or equal to a number of bits associated with a CRC generation circuit. A bit position of the CRC generation circuit that corresponds to the length of the generator polynomial is selected by using a first multiplexer to generate a feedback value. The CRC generation circuit is programmed to calculate a CRC checksum based on the generator polynomial stored in the register and the feedback value from the selected bit position.
    • 公开了一种用于配置循环冗余校验(CRC)产生电路以对数据流执行CRC的方法和装置。 该方法包括将与CRC方程相关联的生成多项式存储在寄存器中,其中生成多项式具有能够变化的长度,使得长度具有小于或等于与CRC生成电路相关联的位数的任何值。 通过使用第一多路复用器来选择对应于生成多项式的长度的CRC生成电路的比特位置,以产生反馈值。 CRC生成电路被编程为基于存储在寄存器中的生成多项式和来自所选位位置的反馈值来计算CRC校验和。