Score evaluation display device for an electronic song accompaniment apparatus
Patent 5434949 Issued on July 18, 1995. Estimated Expiration Date: 
August 13, 2013. 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.
August 13, 2013. 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 ReferencesApparatus for displaying musical notes indicative of pitch and time value Vocal display device Music training apparatus Electronic musical instrument Patent #: 5300723 InventorAssigneeApplicationNo. 105957 filed on 08/13/1993US Classes:704/270, Application84/477RIndicatorsExaminersPrimary: MacDonald, Allen R.Assistant: Sartori, Michael A. Attorney, Agent or FirmInternational ClassesG10L 009/00G09B 015/02 Foreign Application Priority Data1992-08-13 KRAbstractA score evaluation display device for an electronic song accompaniment apparatus has an audio signal processing unit to evaluate a user's singing. A sampling processor samples the difference between an input song signal from a microphone and reference song signal, a volume deference detector detects a voltage difference between these two signals, a rhythm difference detector detects the difference in rhythm between these two signals, and an adder sums the outputs of the volume difference detector and the rhythm difference detector, thereby producing a finally evaluated score. Accordingly, a more reliable and accurate evaluation can be performed for a user's singing, based on the difference between the microphone's input song signal and the reference song signal. | |
