Abstract: A workpiece conveyance device is used for a press device. The workpiece conveyance device includes a support component, first and second moving members, a driver, and a transmission mechanism. The support component supports a holder that detachably holds a workpiece. The first moving member pivotably supports the support component. The first and second moving members are movable in the up and down direction. The driver moves the second moving member in the up and down direction. The transmission mechanism transmits an up and down movement of the second moving member to the first moving member so as to move the first moving member in the up and down direction in conjunction with the up and down movement of the second moving member. The transmission mechanism causes an amount of movement of the first moving member to be greater than an amount of movement of the second moving member.

Abstract: A workpiece conveyance device is used for a press device. The workpiece conveyance device includes a support component, first and second moving members, a driver, and a transmission mechanism. The support component supports a holder that detachably holds a workpiece. The first moving member pivotably supports the support component. The first and second moving members are movable in the up and down direction. The driver moves the second moving member in the up and down direction. The transmission mechanism transmits an up and down movement of the second moving member to the first moving member so as to move the first moving member in the up and down direction in conjunction with the up and down movement of the second moving member. The transmission mechanism causes an amount of movement of the first moving member to be greater than an amount of movement of the second moving member.

Abstract: Rhythm sound data which represents a rhythm sound such as a percussion sound, is synthesized with envelope data by a gate circuit which functions as a multiplier. The synthesized data is supplied to a D/A converter and converted to an analog signal. A percussion sound with a rhythm pattern corresponding to the analog signal is produced at a speaker.

Abstract: In an LSI chip including a control section and a tone generating section, a plurality of tones are simultaneously produced in a time division basis processing for a plurality of channels. The control section is coupled to a keyboard and a performance memory via bus lines, and the control section controls the tone generating section such that a tone having specified tone color and pitch is selectively provided for a particular channel.

Abstract: A basic coefficient to be used for calculation of a transfer function of a digital filter is read out from a ROM according to a cutoff frequency of a desired filter. The value of the coefficient read out from the ROM is gradually varied according to a desired resonance characteristic by an arithmetic circuit so as to reduce the memory capacity of the ROM for storing coefficients.

Abstract: Coefficients used for calculating a transfer function are read out from a ROM corresponding to the cutoff frequency of a desired filter. Using the coefficients read out from the ROM, other coefficients are calculated in a coefficient calculating circuit. The filtering operation is performed by a digital filter circuit, using the obtained coefficients together with the coefficients read out from the ROM.

Abstract: An automatic rhythm accompaniment system comprises memory units storing a plurality of rhythm patterns and a designating switch for selecting a desired rhythm pattern. A memory unit is further contained in the system for previously storing chord progress data and further storing control data to fill in an ad-lib rhythm. Therefore, the rhythm accompaniment system may perform the ad-lib rhythm in place of the rhythm pattern by the switch designation for each measure. Additionally, the accompaniment based on the chord progress data may also be performed automatically.