公开(公告)号：US4862170A

公开(公告)日：1989-08-29

申请号：US171812

申请日：1988-03-22

Applicant: Youichi Hashimoto ,  Takashi Tokuyama ,  Kazuya Nishiga ,  Yoshihiro Arai ,  Nobuhide Ueki ,  Naoki Adachi

Inventor： Youichi Hashimoto ,  Takashi Tokuyama ,  Kazuya Nishiga ,  Yoshihiro Arai ,  Nobuhide Ueki ,  Naoki Adachi

IPC: G11B20/10 ,  H03M1/00 ,  H03M1/66

CPC classification number: H03M1/00 ,  H03M2201/03 ,  H03M2201/196 ,  H03M2201/30 ,  H03M2201/4212 ,  H03M2201/4225 ,  H03M2201/4233 ,  H03M2201/4262 ,  H03M2201/526 ,  H03M2201/6121 ,  H03M2201/721

Abstract: A digital analog converter which is especially suitable for use in converting a digital audio signal into an analog audio signal includes a unit pulse response signal generator for successively generating unit pulse response signals at a predetermined time interval, a digital data generator for generating digital data at the predetermined time interval, a multiplier for multiplying a unit pulse response signal generated at a certain time by a predetermined item of the digital data, and a mixer for producing an analog signal output by combining the unit pulse response signals that have been multiplied by the digital data.

Abstract translation: 特别适用于将数字音频信号转换为模拟音频信号的数字模拟转换器包括用于以预定的时间间隔连续产生单位脉冲响应信号的单位脉冲响应信号发生器，用于产生数字数据的数字数据发生器 所述预定时间间隔，用于将在某一时间产生的单位脉冲响应信号乘以数字数据的预定项目的乘法器和用于产生模拟信号的混频器，所述混频器通过将已经乘以所述单位脉冲响应信号 数字数据。