Nec Corporation

Nippon Steel Corporation

Canon Kabushiki Kaisha

Kohei Okamoto

Hiroshi Tsuchi

Yoshio Ueda

Wataru Kubo

Toshio Watanabe

Hirokatsu Miyata

Takashi Noma

Masaki Yamano

Shunichi Wakashima

Noboru Hasegawa

Hiromichi Aoki

Atsushi Komoto

Yoshikazu Seko

Seiichi Suzuki

There are provided an ultrasonic waveform data generation unit () that generates ultrasonic waveform data representing amplitudes of reflected ultrasonic beams received by a reception unit () in time series for each of ultrasonic elements () forming reception ultrasonic elements (), an ultrasonic waveform data processing unit () that uses a plurality of origin time adjustment patterns, in which a plurality of relative positional relationships between a phased array probe () and a welded portion () are set, and performs processing to synthesize pieces of the ultrasonic waveform data each having the adjusted origin time to generate synthesized ultrasonic waveform data according to each of the origin time adjustment patterns, and a defect evaluation unit () that evaluates whether or not a defect () is present in the welded portion () based on the synthesized ultrasonic waveform data.

Defect detection device, defect detection method, and program

In a mobile phone having a liquid crystal display unit, the entire liquid crystal display unit is displayed in a simple display mode at lest in a non-operating standby mode. In the simple display mode, the entire liquid crystal display unit is driven by reducing the number of gradation levels or by decreasing a liquid crystal driving voltage. By using such a controlling method, the power consumption of the liquid crystal display unit can be reduced in the non-operating standby mode. On the other hand, necessary information such as time and the amount of remaining battery is displayed such that the information can be read.

Power-saving driving method of a mobile phone

Power saving driving method of mobile telephone

A display driver which is simplified in construction of a power supply circuit and is reduced in power dissipation. The display driver includes a column driver including a decoder and a plurality of analog switches. One of the analog switches which outputs a voltage of the lowest potential is formed from an nMOS field effect transistor connected between a potential supply point of the lowest potential to be outputted and an output point so as to form a current path. The back gate electrode of the MOS field effect transistor is connected to the potential supply point of the lowest potential. A level shift circuit level shifts a lower side potential from among output signals of the decoder to the lowest potential to be outputted and provides the level shifted signal to the gate electrode of the MOS field effect transistor. Since the lowest potential to be supplied to the display elements belonging to a column need not necessarily be fixed to the ground potential, the construction of the power supply circuit can be simplified and reduction in current of the power supply circuit and reduction in number of circuit components can be achieved.

Display driver

In a semiconductor device, a plurality of first pads are arranged in a row on a semiconductor chip, and a plurality of second pads are arranged in another row on the semiconductor chip. One of the first pads and one of the second pads is capable of receiving the same signal.

Semiconductor device having doubled pads

Growing community of inventors

Tokyo, Japan

Kohei Okamoto