Digital mp3 audio device

• US 20020173866A1
• Filed: 05/14/2002
• Published: 11/21/2002
• Est. Priority Date: 09/14/2000
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Muller, Wolfgang, Dangberg, Andreas
• Application Number:
  US10/130,399
• Publication Number:
  US 20020173866A1
• Time in Patent Office: Days
• US Class Current: 700/94
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2020/10546 specifically adapted for audio data
• CPC Class Codes: G11B 2220/60 Solid state media
• CPC Class Codes: G11C 2207/16 Solid state audio
• CPC Class Codes: G11C 7/16 Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters

Abstract

An appliance for recording and playing back audio signals, having a semiconductor memory which stores digital audio signals coded and compressed in a first format, a broadcast radio receiver for digital audio signals coded and compressed in a second format, a controller which is used to store audio signals received by the broadcast radio receiver in the semiconductor memory without recoding, and a playback part which can be used to render the audio signals stored in the semiconductor memory audible.

Claims

1. An appliance for recording and playing back audio signals, having:

a semiconductor memory which stores a plurality of streams of coded and compressed digital audio signals independently of one another,

a broadcast radio receiver for coded and compressed audio signals,

a controller which is used to store coded and compressed digital audio signals received by the broadcast radio receiver without recording into a stream in the semiconductor memory,

a playback part with [lacuna] a stream of coded and compressed digital audio signals which is stored in the semiconductor memory or is received by the broadcast radio receiver is rendered audible.

2. The appliance as claimed in claim 1, where the playback part reproduces streams even if their storage of these streams is not yet complete.

3. The appliance as claimed in claim 1 or 2, where the broadcast radio receiver provides a plurality of streams of coded and compressed audio signals, and the controller stores more than one of these streams in the semiconductor memory at the same time.

4. The appliance as claimed in one of the preceding claims, where the semiconductor memory provided is replaceable modules.

5. The appliance as claimed in claim 4, where, for each stream, an indicator for the compression format is stored, and the playback part uses this indicator to select one of a plurality of decompressors when the stream in question is rendered audible.