Patent ID: 6281827
Filing Date: 2001-08-28
Classification: H03M

Abstract:
A method of converting a digital signal to an analog signal, comprising the steps of:providing a digital code having a plurality of bits including a starting bit and an ending bit;outputting the digital code to a digital output port bit-by-bit, starting with the starting bit and ending with the ending bit, to produce a signal level at the output port that varies according to the value of the ongoing bit;multiplying a unit of time by a weight of coding that represents the ongoing bit, so as to obtain an output time segment for the respective bit, said step of outputting the digital code includingholding the signal level at the output port for said output time segment, andthen shifting to a next ongoing bit; andrepeating said multiplying and holding successively for each successive bit of the digital code until the ending bit of the digital code has been processed, thereby to provide the analog signal converted from the digital signal at the output port.