1976-11-26
1978-11-07
Claffy, Kathleen H.
179 2DP, H04M 1100
Patent
active
041247736
ABSTRACT:
This invention relates to an electronic system and a method for storing and distributing audio signals over existing communication lines. The system comprises a compressor for compressing in a predetermined manner the waveform amplitude of an input analog signal, thereby forming a compressed analog signal. The compressed analog signal is then converted into a digital signal by an analog to digital converter. A digital interface subsystem stores and retrieves selected ones of the digital signals for transmission over a communications line. At a remote end of the communications line the digital signal is converted back to its analog compressed signal representation by a digital to analog converter. The compressed analog signal is then expanded in a manner complimentary to the compressor operation, thus reconstructing the analog signal. A selector generator is provided at the remote end of the communications line for generating a command signal over the communications line to command the digital interface subsystem to select the desired one of the stored digital signals.
REFERENCES:
patent: 3347988 (1967-10-01), Marill
patent: 3444324 (1969-05-01), Dougan
patent: 3444550 (1969-05-01), Paulus
patent: 3448216 (1969-06-01), Kelly
patent: 3471648 (1969-10-01), Miller
patent: 3590381 (1971-06-01), Ragsdale
patent: 3969680 (1976-07-01), Wermuth
Claffy Kathleen H.
Popek Joseph A.
LandOfFree
Audio storage and distribution system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Audio storage and distribution system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Audio storage and distribution system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2234560