Variable data compression announcement circuit

There is disclosed a call announcement circuit (40) integrated into the switching network of a PBX switching system such that the announcement board resides in one of the port slots and has direct access to the internal system buses (1,3). The circuit can handle many separate announcements each stor...

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Bibliographische Detailangaben
Hauptverfasser:	SMITH, THOMAS LOYD, OYE, KEVIN JYO, PATERNO, ENZO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY MUSICAL INSTRUMENTS PHYSICS SELECTING SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TELEPHONIC COMMUNICATION TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	There is disclosed a call announcement circuit (40) integrated into the switching network of a PBX switching system such that the announcement board resides in one of the port slots and has direct access to the internal system buses (1,3). The circuit can handle many separate announcements each stored (106) at a selectable compression ratio. Each such announcement can be recorded (112,101,109) or played (108,101,111) in any of the time slots under processor control. This configuration allows tradeoffs between storage capacity and compression ratio (i.e., speech clarity) and also allows messages to be played on any line or to any station via the communication bus and the selected time slot.