Matsushita Electric Industrial Co., Ltd.

Matsushita Graphic Communication Systems, Inc.

Miwa Science Laboratory Inc.

Hiroaki Miwa

Hirohide Miwa

Hiroaki Kotera

Kunio Yoshida

Akiyoshi Tanaka

Kunio Sannomiya

Yoshihiro Uno

Masato Kino

An ultrasonic irradiation apparatus irradiates ultrasonic waves onto a wide area having three-dimensionally curved surfaces. An ultrasonic irradiator having a plurality of ultrasonic transducer is arranged in a plane. The position of at least a portion of the ultrasonic transducers is mutually and flexibly changeable in three dimensions. Ultrasonic transducers are installed on a surface of a flexible and/or elastic sheet member or net member. The ultrasonic irradiator may include a plurality of ultrasonic transducers formed on a flexible piezoelectric sheet member, including driving electrodes arranged on one surface and opposed electrodes arranged on another surface. The ultrasonic irradiator may be installed on or inside of a flexible planar bag containing a fluidic ultrasonic conductive medium. A mechanism is provided for moving or tilting the ultrasonic irradiator with respect to the object, or a band-holding member may be provided for fitting the irradiator to the object.

Ultrasonic irradiation apparatus

In a band compression method using an adaptive prediction system preferably applicable to facsimile transmission, a method of selecting picture elements to be referred (hereinafter defined as reference picture elements) for predicting an information value of a picture element wherein the reference picture elements are not selected uniformly and continuously from the neighborhood of the predicted picture element, but a group of picture elements (the first order picture elements) adjacent to the predicted picture element and further a group of picture elements of equal or higher order than the third order are selected as reference picture elements by excluding those shaded picture elements which lie on lines connecting the predicted picture element and the first order picture elements.

Method of band compression

Growing community of inventors

Kawasaki, Japan

Hiroaki Miwa