U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Apparatus and method for simultaneously reproducing audio signals for multiple channels

Patent 5917781 Issued on June 29, 1999. Estimated Expiration Date: Icon_subject June 20, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Recording medium reproduction apparatus and recording medium reproduction method for selecting, mixing and outputting arbitrary two streams from medium including a plurality of high effiency-encoded sound streams recorded thereon
Patent #: 5646931
Issued on: 07/08/1997
Inventor: Terasaki

Multilingual recording medium and reproducing apparatus with automatic selection of substitutes and languages based on frequency of selections
Patent #: 5652824
Issued on: 07/29/1997
Inventor: Hirayama, et al.

Multimedia optical disc which conforms to the motion picture rating systems in a variety of countries and a reproducing device for said disc Patent #: 5691972
Issued on: 11/25/1997
Inventor: Tsuga, et al.

Inventor

Assignee

Application

No. 880168 filed on 06/20/1997

US Classes:

369/4, Combining signals to form composite (e.g., mixing)369/47.16, Of plural interrelated channels386/97Selective mode (e.g., mono, stereo, or bilingual)

Examiners

Primary: Dinh, Tan

International Classes

H04B 001/20
H04N 005/91

Foreign Application Priority Data

1996-06-22 KR

Abstract

A reproducing method and apparatus include an audio signal processor, a controller, and at least one decoder. The audio signal processor receives digital audio signals for more than one channel reproduced from a disc, and processes the received digital audio signals. The controller sets at least a first channel for reproduction, and generates a first control signal indicative thereof. The first decoder receives the processed audio signals and the first control signal, and extracts and decodes audio signals for the first channel included in the processed audio signals based on the first control signal.

Other References

  • Sound Quality, Panasonic DVD Players, 199
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