Patent · US Expired

Playback apparatus

US6788634B1 · kind B1 · utility

3Cited by
18References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 13, 2000
Grant dateSep 7, 2004
Priority date
Expiry dateSep 1, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N5/85
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A playback apparatus includes a data source (1) that provides a data stream signal (d0), and a device (2) responsive to the data stream signal. The device forms a first data stream (d1) in a first data format (F1), wherein the first data stream (d1) includes a data field (D1) that is encoded in a second data format (F2). A code converter (3) is responsive to the first data stream (d1), and converts selected parts of the first data stream (d1) to a second data stream (d2) that has data encoded in a third data format (F3). An output decoder (5) forms playback signals from the second data stream (d2). The playback signal may be audio and/or video signals that are presented to the appropriate audio transducer or display device for presentation to a playback apparatus user(s).

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