Olympus Optical Company, Ltd.

Kazunori Shionoya

Tatsuo Nagasaki

Shinichi Imade

Eishi Ikuta

Koji Taguchi

Seiichi Wakamatsu

Hisakatsu Tanaka

Toyoo Nishiyama

In a barcode symbol reading apparatus which can execute high-speed processing even when a one-dimensional image pickup device is used, a pulse width count circuit counts the number of widths of bars and spaces of a barcode symbol from an image pickup signal from a 1DCCD array, and stores the count result in a FIFO memory. A data processing circuit fetches a width data string for each scan from the FIFO memory, and when the data processing circuit detects the sizes in the row and column directions and security level from the fetched width data string using a row indicator, the data processing circuit counts the number of times of appearance of an identical row indicator to obtain the number of scan times per row, which indicates the relative moving speed between the 1DCCD array and the barcode symbol. Thereafter, the data processing circuit processes the width data string read out from the FIFO memory while skipping scans corresponding to the number of scan times per row.

Barcode symbol reading system capable of shortening time for reading and

An ultrasonic endoscope apparatus in which an ultrasonic vibrating element radiating an ultrasonic wave to obtain an image of an object to be inspected is rotatably housed in a distal end of an insertion section of the endoscope, and a rotation angle sensing mechanism is also housed in the distal end. The rotation angle sensing mechanism has a magnetic recording section having a magnetization pattern for forming a magnetic field, and a magnetic sensor having at least one magneto-resistive element for sensing the magnetic field. One of the magnetic recording section and the magnetic sensor is rotated integrally with the ultrasonic vibrating element so that a rotation angle of the ultrasonic vibrating element is sensed in a precise manner.

Ultrasonic endoscope apparatus

A pulse compression apparatus comprises a quadrature detector for converting an echo signal obtained by an ultrasonic transducer into a complex signal, a reference wave oscillator for producing a reference wave signal, and a correlation circuit for deriving a correlation between the complex signal and the reference wave signal to compress the echo signal.

Pulse compression apparatus for ultrasonic image processing

Growing community of inventors

Tokyo, Japan

Kazunori Shionoya