Patent · US Expired

Program selection for a digital audio disk

US4817075A · kind A · utility

34Cited by
4References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 4, 1987
Grant dateMar 28, 1989
Priority date
Expiry dateMar 4, 2007

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2220/90
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A digital audio player in which the pieces of music are played according to a program. The program is selected so that the total playing time does not exceed a set period of time. The selection is performed by reading playing times from a disk on which are recorded both the pieces of music and their separate playing times.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.