Yamaha Corporation

Hamamatsu-Photonics K.k.

Hiroyuki Ohba

Eiichiro Aoki

Masao Sakama

Shigehiko Mizuno

Yutaka Tohgi

Kunihiko Watanabe

Hideo Tsukada

Hironori Osakabe

Maki Kamiya

In a PET apparatusin a calculation processing unitfor each frame, radiation data for a region of interest K of a measurement-subjected part H is extracted, and then the optimum administration rate of a labeled substance T is calculated based on the radiation data such that the radiation concentration for the region of interest K will be steady regardless of the physiological state (blood flow rate etc.) of the subject S. In an administration rate control unitfeedback control of the administration rate of the labeled substance into the subject S is carried out based on the calculated optimum administration condition. As a result, the change in the amount accumulated of the labeled substance T in the region of interest K between before and after administration of a drug being tested Y can be obtained easily and precisely in real time as the amount of change in the radiation concentration, and it becomes possible to grasp the measurement results rapidly and easily.

Positron emission tomograph apparatus

A pattern memory stores plural accompaniment patterns for each of plural accompaniment components, and each of the accompaniment components is composed of one or more musical instrument parts. An operator is provided for selecting a desired accompaniment pattern for each of the components, and the accompaniment patterns correspond, in accordance with a predetermined rule, to different possible manners in which the operator is actuated, so that a specific accompaniment pattern corresponding to a manner in which the operator is actually actuated. A new accompaniment pattern is registered into the pattern memory in accordance with the predetermined rule. Information indicative of the predetermined rule may be shown on a display. The pattern memory may store accompaniment patterns for each of plural different accompaniment styles, and specific accompaniment patterns may by shared between the accompaniment styles. There are proposed various variations to select a desired accompaniment pattern for each accompaniment component. Further, it is also possible to selectively read out a predetermined part of a specific accompaniment pattern and to set such a condition to prevent a specific accompaniment from being read out. Moreover, it is possible to read out a specific accompaniment pattern which satisfies a predetermined retrieval condition or which is close to a desired accompaniment pattern. It is also possible to read out plural accompaniment patterns in sequence for sequential reproductive performance.

Automatic accompaniment device capable of selecting a desired

A normal automatic accompaniment performance is executed in accordance with an accompaniment pattern read out from a pattern memory. When a special performance is designated such as an intro, fill-in or ending performance, a modification suitable for the special performance is applied to a accompaniment pattern read out from the memory, so that the special performance is inserted in accordance with the thus-modified accompaniment pattern. At that time, the pattern may be modified by desired modifier data describing a manner of modifying the pattern. The pattern modification can be diversified by setting an individual modification condition to each musical instrument part of the accompaniment pattern in correspondence to the designated modifier. A memory is provided for storing a number of modifier data, and a further arrangement is provided for freely editing the modifier data stored in the memory. A still further arrangement is provided for dislaying the accompaniment pattern in the pre-modification state and the accompaniment pattern in the post-modification state for a visual comparison therebetween. There are also provided various methods to designated a desired modifier as well as various pattern modifying methods.

Automatic accompaniment apparatus employing modification of

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Hamamatsu, Japan

Hiroyuki Ohba