N: 1 Transcoder
AssigneeDSC Communications Corporation
InventorsHarbhajan S. Virdee, Mike M. Tatachar, Michael H. Jette
Life of this patent
Estimating the term…
Abstract
An N:1 transcoder (12, 40) with a compression data path that includes uncompressed digroup circuits (92, 94, 96, 98, and 100) each receiving N incoming uncompressed signal and extracting a plurality of control, signaling, and voice/data traffic channels therefrom, a compressor (120) coupled to the uncompressed digroup circuits (92, 94, 96, 98, and 100) and compressing data in selected ones of the extracted voice/data channels, and a compressed data circuit (126) coupled to the compressor (120) for packing the compressed data into predetermined channels of one compressed signal, and further providing control, signaling, and performance monitoring information embedded therein.
Claims39
An N:1 E1 transcoder comprising:
- a compression data path including:
- an uncompressed digroup circuit receiving N incoming uncompressed E1 signals and extracting a plurality of control, signaling, and speech, voice-band data and digital data traffic channels therefrom;
- a compressor coupled to said uncompressed digroup circuit and compressing data in selected ones of said extracted speech, voice-band data and digital data channels;
- a compressed data circuit coupled to said compressor packing said compressed data into predetermined time slots of one compressed E1 signal, and further providing control, signaling, and performance monitoring information embedded therein;
- said compressed data circuit including:
- a packer for dynamically packing said compressed data into available time slots in the compressed E1 signal;
- and
- a proprietary communications link generator coupled to said packer generating control and overhead data for the compressed E1 signal including a proprietary data link having signaling information, software download control and status, operational control, alarm and status of the transcoder, said control and overhead data further including channel bandwidth information, idle noise parameters, data link bits, and remote alarm indicator, said packer embedding said control and overhead data into a proprietary communications link occupying at least one predetermined time slot of said compressed E1 signal.
Dependencies are inferred from the claim text.