05557541 is referenced by 565 patents and cites 8 patents.

A distribution system for audio program materials includes a portable audio storage and retrieval device that is programmable from a high speed data transfer system, and that includes a high-capacity data storage medium, a base control interface for identifying and accepting program material, a mobile control interface for displaying the identity of recorded material for playback selection, a recording mechanism for accepting very high speed digital data from an external source at rates faster than real time, and a playback mechanism for retrieving the stored data from the storage medium and for converting the data into audio signals for playback.

Title
Apparatus for distributing subscription and on-demand audio programming
Application Number
8/279244
Publication Number
5557541
Application Date
July 21, 1994
Publication Date
September 17, 1996
Inventor
James M Janky
Los Altos
CA, US
Nathan Schulhof
Los Gatos
CA, US
Agent
Michael A Glenn
Assignee
Information Highway Media Corporation
CA, US
IPC
G11B 20/10
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