Yamaha Corporation

Susumu Ishibashi

Masao Noro

Shinya Sakurada

Fumiteru Takeda

Minoru Kitamura

Yohei Ohtani

Tomonobu Sugimoto

A sensor output device includes a sensor and an output circuit. The sensor includes a piezoelectric element and an output terminal. The piezoelectric element includes porous resin. The output circuit is connected to the output terminal of the sensor and includes a thermistor.

Sensor output device, sound output device, and musical instrument

When data are to be recorded on a recording medium having imparted thereto a medium ID that is identification information unique to the recording medium, an additional ID related to the medium ID is generated on the basis of the medium ID. Then, the data are encrypted and recorded on the medium along with the additional ID. In reproduction, the medium ID and the additional ID attached to the data are read out from the medium, and then compared to determine whether both of the medium ID and additional ID meet a predetermined matching condition. When the additional ID attached to the data has been determined as meeting the predetermined matching condition, the data is judged to be reproducible data. In this manner, it is possible to promptly determined whether or not the data recorded on the medium are fairly-recorded data, which can effectively prevent unfair use of the data.

Information recording/reproducing apparatus with security measure

A display for setting atone control parameter is disposed on an operation panel of an electronic musical instrument. Function and subfunction operator groups are arranged in parallel in two rows along a longer side of display Function operator group corresponds to each function in the first hierarchy, and subfunction operator group corresponds to each subfunction in the second hierarchy that is designated for each function in the first hierarchy. Display displays a tone control parameter that is to be set by the operation of a parameter setting operator group and the characters representing each function and each subfunction of the function and subfunction operator groups By operation of each operator group the functions and the subfunctions are switched hierarchy by hierarchy, whereby a desired tone control parameter can be easily set to be a desired value or can be easily changed.

Tone control parameter setting device

In a musical tone control apparatus, musical tones to be generated are controlled according to musical tone control parameters which include an envelope that has been extracted and processed. The range of variation of the extracted envelope may be limited within a predetermined range, so that the musical tones are controlled according to the thus limited envelope. A key-on event of the input signal may be detected, and the timing of delivery of the processed envelope may be changed according to a length of time that elapses from a point of time when the key-on event is detected. The velocity of the input signal may also be detected, so that the musical tones are controlled according to the musical tone control parameters including one or more parameters altered according to the detected velocity and processed envelope.

Musical tone control apparatus with envelope processing

A performance data generation apparatus generates performance data for controlling the tone generation condition of a tone to be generated based on a string vibration signal obtained from the string vibration of a stringed instrument. The performance data generation apparatus includes an operation member for selecting a predetermined performance operation mode and a control device responsive to the operation member. When the predetermined performance operation mode is selected by operating the operation member, the control device does not output note-on data or note-off data among performance data that is generated based on the string vibration signal, and outputs specified performance data other than the note-on data and the note-off data.

Performance data generation apparatus for selectively outputting note

An automatic performance section and an effect imparting section or (and) a pitch measuring section are provided in combination within a single device, and the operations of these sections are collectively controlled by a processor. To an external sound signal input from outside the device, the effect imparting section imparts an effect designated by designating data. For tuning purposes, the pitch measuring section detects zero-cross points of the external sound signal to measure the pitch of the signal. Under the control of the processor, the automatic performance section, which has automatic performance data and change data stored therein, under the control of the processor, reads out the performance data to perform an automatic performance process and also reads out the change data for changing the designating data to thereby change an effect to be imparted. In addition, there may be provided a process order control section which controls the order of the processes in the pitch measuring and automatic performance sections in such a manner that the zero-cross detecting process in the pitch measuring section is performed with priority over the process in the automatic performance section and that the process in the automatic performance section is performed with priority over a pitch calculating process in the pitch measuring section.

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Hamamatsu, Japan

Susumu Ishibashi