Digital-analog converter circuit for speech-synthesizing electro

Details Digital-analog converter circuit for speech-synthesizing electro Digital-analog converter circuit for speech-synthesizing electro

1981-02-24

1983-08-09

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

Phonetic

G04B 2108

Patent

active

043975623

ABSTRACT:
A novel type of digital-to-analog converter circuit is disclosed for an electronic timepiece having a speech synthesizing capability. The converter circuit utilizes pulse width modulation to form a train of pulses in response to successive digital signals which specify amplitude and polarity values for synthesizing speech, with the pulse widths being determined in accordance with the digital signal values. By filtering out the unwanted high frequency components of this pulse train, speech signals can be synthesized through an audio transducer. Such a digital-to-analog converter is capable of operating in a satisfactory manner at low levels of supply voltage, and has a very low power consumption.

REFERENCES:
patent: 4279030 (1981-07-01), Masuzawa et al.
patent: 4357489 (1982-11-01), Henderson et al.

Affiliated with

Also associated with

Rating

Digital-analog converter circuit for speech-synthesizing electro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital-analog converter circuit for speech-synthesizing electro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital-analog converter circuit for speech-synthesizing electro will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-585310