Title:
差動符号化法を実行する伝送システム
Document Type and Number:
Japanese Patent JP3898218
Kind Code:
B2
Abstract:
A transmission system for encoded transmission of audio signals with frequency band compression. An input signal to be transmitted is divided into two spectral portions in a coder. One spectral portion is digitally encoded by a time-domain coder, and the other spectral portion is coded by a transform domain coder. The two digitally coded signals are then multiplexed for transmission as a composite digitally coded signal to a receiver. At the receiver the composite signal is demultiplexed and the two spectral portions thereof are respectively decoded by a time-domain decoder and a transformer-domain decoder. The decoded signals, covering the respective spectral portions, are then combined to reconstitute the originally transmitted audio signal.
Inventors:
Uppelmann, Fleethelm
Devon, Franciscus, Marinus, Josephus
Devon, Franciscus, Marinus, Josephus
Application Number:
JP51155495A
Publication Date:
March 28, 2007
Filing Date:
October 11, 1994
Export Citation:
Assignee:
Koninkuryuke Philips Electronics N.V.
International Classes:
H04B14/06; G10L19/00; G10L19/02; G10L19/038; G10L19/04; G10L19/16; H04B1/66
Domestic Patent References:
| JP5037393A | ||||
| JP62147500A |
Attorney, Agent or Firm:
Tadahiko Ito