Performance evaluation method for use in a karaoke apparatus

Patent 5715179 Issued on February 3, 1998. Estimated Expiration Date:

March 4, 2016. 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.

Abstract Claims Description Full Text

Patent References

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Inventor

Park, Kyeong-Soo

Assignee

Daewoo Electronics Co., Ltd.

Application

No. 610318 filed on 03/04/1996

US Classes:

702/182, Performance or efficiency evaluation84/609, Note sequence84/610, Accompaniment84/634, Accompaniment369/53.31, Of storage or retrieval information signal386/102, Including mixing or adding means434/307A, Karaoke700/91Contest or contestant analysis, management, or monitoring (e.g., statistical analysis, handicapping, scoring)

Examiners

Primary: Voeltz, Emanuel T.
Assistant: Dam, Tuan Q.

Attorney, Agent or Firm

Anderson Kill & Olick, P.C.

International Classes

G06F 007/02
G09B 015/02

Foreign Application Priority Data

1995-03-31 KR

Abstract

A performance evaluation method for use in a karaoke apparatus evaluates a singing performance of a karaoke singer by measuring differences between the karaoke singer's vocal rendition and an accompanying music produced by an audiovisual device. Digitized voice signals and their corresponding digitized accompaniment signals are produced by sampling simultaneously the karaoke singer's vocal rendition and the accompanying music, respectively. Then, a difference between a digitized voice signal and its corresponding digitized accompaniment signal and a trend of differences are calculated and used to generate a performance score.