公开(公告)号：US20160342174A1

公开(公告)日：2016-11-24

申请号：US15230484

申请日：2016-08-08

Applicant: SHENZHEN HUIDING TECHNOLOGY CO., LTD.

Inventor： Guangyao Wang

IPC: G06F1/03 ,  H03K3/012

CPC classification number: G06F1/0321 ,  G06F1/022 ,  G06F1/03 ,  G06F1/0328 ,  G06F1/035 ,  H03K3/012

Abstract: A sine wave generating apparatus comprises: a phase accumulating module, configured to acquire configuration information of a sine wave, and generate address information comprising integer address information and decimal address information; a value searching module, configured to search for first data information and second data information of the sine wave according to the integer address information; an interpolation module, configured to conduct interpolation between the first data information and the second data information, and acquire interpolation original data information of the sine wave according to the decimal address information; a random truncating module, configured to conduct truncation processing on the interpolation original data according to the bit width of the decimal address information and a pseudorandom sequence output value to acquire final interpolation data information of the sine wave; and a sine wave generating module, configured to generate image information of the sine wave according to the final interpolation data information of the sine wave.

Abstract translation: 正弦波发生装置包括：相位累积模块，被配置为获取正弦波的配置信息，并生成包括整数地址信息和十进制地址信息的地址信息; 值搜索模块，被配置为根据整数地址信息搜索正弦波的第一数据信息和第二数据信息; 插值模块，被配置为在所述第一数据信息和所述第二数据信息之间进行插值，并且根据所述十进制地址信息获取所述正弦波的插值原始数据信息; 一个随机截断模块，被配置为根据十进制地址信息的位宽和伪随机序列输出值对插值原始数据进行截断处理，以获取正弦波的最终内插数据信息; 以及正弦波产生模块，被配置为根据正弦波的最终内插数据信息生成正弦波的图像信息。