公开(公告)号：US20040202204A1

公开(公告)日：2004-10-14

申请号：US10833772

申请日：2004-04-27

Applicant: ESS Technology, Inc.

Inventor： Ping Dong ,  Jordan C. Cookman

IPC: H04J003/04

CPC classification number: H04L25/0268 ,  H01F2019/085

Abstract: An electrical isolation barrier for use in a Data Access Arrangement uses a high frequency (HF) transformer 24 to provide isolation. An input signal, which may be analog or digital, is connected to a modulator. The analog output of the modulator is connected to the input of the HF transformer. The output of the HF transformer is connected to the input of a demodulator. Simple amplitude modulation can be used in the modulator to modulate the input signal to the frequency range of operation of the HF transformer. A simple low pass filter may be incorporated in the demodulator to remove harmonic distortion caused by the HF transformer. The output signal of the demodulator is substantially the same as input signal.

Abstract translation: 用于数据访问装置的电隔离屏障使用高频（HF）变压器24来提供隔离。 可以是模拟或数字的输入信号连接到调制器。 调制器的模拟输出连接到HF变压器的输入。 HF变压器的输出端连接到解调器的输入端。 可以在调制器中使用简单的幅度调制来将输入信号调制到HF变压器的工作频率范围。 可以在解调器中并入简单的低通滤波器，以消除由HF变压器引起的谐波失真。 解调器的输出信号与输入信号基本相同。

公开(公告)号：US20040103134A1

公开(公告)日：2004-05-27

申请号：US10722728

申请日：2003-11-25

Applicant: ESS Technology, Inc.

Inventor： Jordan C. Cookman ,  Ping Dong

IPC: G06F007/52

CPC classification number: G06F7/72 ,  G06F7/729 ,  H04L27/00

Abstract: A method and device are provided that allow computation of multiple modulus conversion (MMC) outputs using little or no division operations. Instead of division operations, multiplication and logical shift operations are used to produce pseudo-quotients and pseudo-remainders, which may be corrected in a final step to produce correct MMC outputs. This allows for more efficient implementation, since division is typically less efficient than multiplication and logical shift. The method and device operate on MMC inputs that may be partitioned into sub-quotients of varying numbers of digits in any numbering system. The multiplication and logical shift operations are performed on each of the sub-quotients according to a procedure derived from long-division techniques.

公开(公告)号：US20030167291A1

公开(公告)日：2003-09-04

申请号：US10085760

申请日：2002-02-28

Applicant: ESS Technology, Inc.

Inventor： Jordan C. Cookman ,  Ping Dong

IPC: G06F007/00 ,  G06F015/00

CPC classification number: G06F7/72 ,  G06F7/729 ,  H04L27/00

Abstract: A method and device are provided that allow computation of multiple modulus conversion (MMC) outputs using little or no division operations. Instead of division operations, multiplication and logical shift operations are used to produce pseudo-quotients and pseudo-remainders, which may be corrected in a final step to produce correct MMC outputs. This allows for more efficient implementation, since division is typically less efficient than multiplication and logical shift. The method and device operate on MMC inputs that may be partitioned into sub-quotients of varying numbers of digits in any numbering system. The multiplication and logical shift operations are performed on each of the sub-quotients according to a procedure derived from long-division techniques.

Abstract translation: 提供了一种允许使用很少或没有分割操作来计算多模转换（MMC）输出的方法和装置。 代替分割运算，乘法和逻辑移位运算用于产生伪商和伪余数，这可以在最终步骤中进行校正，以产生正确的MMC输出。 这允许更有效的实现，因为除法通常比乘法和逻辑移位效率低。 该方法和装置在可以划分成任何编号系统中具有不同数字位数的子商品的MMC输入上操作。 根据从长分割技术导出的过程，对每个子商进行乘法和逻辑移位操作。